CN103600664B - For power distribution management system and the management process of electronic power source special car - Google Patents
For power distribution management system and the management process of electronic power source special car Download PDFInfo
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- CN103600664B CN103600664B CN201310475665.3A CN201310475665A CN103600664B CN 103600664 B CN103600664 B CN 103600664B CN 201310475665 A CN201310475665 A CN 201310475665A CN 103600664 B CN103600664 B CN 103600664B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The present invention proposes a kind of power distribution management system for electronic power source special car and management process, relate to Control of Electric Vehicles field, first battery charger connects a BMS by the 3rd CAN, a described BMS is connected with energy-storage battery bag, first battery charger carries out data transmission by a BMS of the 3rd CAN and energy-storage battery bag, described second battery charger connects the 2nd BMS by the first CAN, described 2nd BMS and drive power brick to carry out managing electric quantity by power distribution management system and distribute and also upwards fill consumer and chassis consumer is powered.Thus realize for dual power supply electric car power supply allocation manager, and the battery management system data being in different CAN network can be carried out bus routing forwarding and BMS power supply is managed.
Description
Technical field
The present invention relates to power source special car field, particularly relate to a kind of power distribution management system for electronic power source special car and management process.
Background technology
Pure electronic power source special car, generally all adopts and drives battery pack in traveling, and energy-storage battery bag is used for the version of powering to the outside current consumer of upper dress.This version in some cases, there is energy-storage battery bag electricity and can not meet the electricity consumption requirement that outside current consumer at that time powers, or drive power brick electricity can not meet the problem of driving requirements at that time, the power distribution management system of battery-driven car of the prior art can not realize the coordinated management of two kinds of power brick, and carry out according to respective dump energy the work switching distribution two kinds of power brick, existing upper dress energy-storage battery bag can not be used for driving chassis to realize travelling increasing journey, can not improve course continuation mileage; Meanwhile, drive power brick can not be used for dress supplying power for outside, the extreme electricity consumption situation of upper dress can not be met.So above-mentioned technical matters, need those skilled in the art badly and deal with.
Summary of the invention
The present invention is intended at least solve the technical matters existed in prior art, especially innovatively proposes a kind of power distribution management system for electronic power source special car and management process.
In order to realize above-mentioned purpose of the present invention, the invention provides a kind of power distribution management system for electronic power source special car, its key is, comprising: the first battery charger, the second battery charger, a BMS, the 2nd BMS, energy-storage battery bag, driving power brick and power distribution management system;
Described first battery charger connects a BMS by the 3rd CAN, a described BMS is connected with energy-storage battery bag, first battery charger carries out data transmission by a BMS of the 3rd CAN and energy-storage battery bag, and a BMS carries out charging/discharging voltage, electric current, managing electric quantity to energy-storage battery bag;
Described second battery charger connects the 2nd BMS by the first CAN, described 2nd BMS is connected with driving power brick, second battery charger carries out data transmission by the first CAN with driving the 2nd BMS of power brick, and the 2nd BMS carries out charging/discharging voltage, electric current, managing electric quantity to driving power brick;
A described BMS connects power distribution management system by the 4th CAN, described 2nd BMS connects power distribution management system by the 5th CAN, the electricity of described energy-storage battery bag passes through the 4th CAN by a BMS of energy-storage battery bag, and the electricity of described driving power brick sends into power distribution management system by driving the 2nd BMS of power brick by the 5th CAN, also upwards dress consumer and chassis consumer are powered with distribution to carry out managing electric quantity by power distribution management system.
The described power distribution management system for electronic power source special car, preferably, described power distribution management system comprises: control unit ECU and contact unit,
Control unit connects the 4th CAN low tension terminal, control unit connects the 4th CAN high-pressure side, control unit connects the second CAN low tension terminal, control unit connects the second CAN high-pressure side, control unit connects the 5th CAN low tension terminal, control unit connects the 5th CAN high-pressure side, control unit connects externally fed positive source, control unit connects externally fed power cathode, control unit connects contact unit, and described controller unit connects driving power brick and energy-storage battery bag respectively.
The described power distribution management system for electronic power source special car, preferably, described contact unit comprises: the first contactless switch K1, the second contactless switch K2, the 3rd contactless switch K3 and the 4th contactless switch K4;
First contactless switch control end of one end connection control unit of the input circuit of described first contactless switch K1, the relay common point of the other end connection control unit of the input circuit of described first contactless switch K1;
First contactless switch control end of one end connection control unit of the input circuit of described second contactless switch K2, the relay common point of the other end connection control unit of the input circuit of described second contactless switch K2;
First contactless switch control end of one end connection control unit of the input circuit of described 3rd contactless switch K3, the relay common point of the other end connection control unit of the input circuit of described 3rd contactless switch K3;
First contactless switch control end of one end connection control unit of the input circuit of described 4th contactless switch K4, the relay common point of the other end connection control unit of the input circuit of described 4th contactless switch K4.
The described power distribution management system for electronic power source special car, preferably, described driving power brick positive pole is connected with one end of the output loop of the first contactless switch K1, and the other end of the output loop of described first contactless switch K1 is connected with the positive pole of upper dress current consumer; Described driving power brick negative pole connects upper dress current consumer negative pole and car load high tension supply splitter box negative pole;
Described energy-storage battery bag positive pole is connected with one end of the output loop of the second contactless switch K2, and the other end of the output loop of described second contactless switch K2 is connected with the positive pole of upper dress current consumer; Described energy-storage battery bag negative pole connects upper dress current consumer negative pole and car load high tension supply splitter box negative pole;
Described driving power brick positive pole is connected with one end of the output loop of the 3rd contactless switch K3, and the other end of the output loop of described 3rd contactless switch K3 is connected with car load high tension supply splitter box positive pole;
Described energy-storage battery bag positive pole is connected with one end of the output loop of the 4th contactless switch K4, and the other end of the output loop of described 4th contactless switch K4 is connected with car load high tension supply splitter box positive pole.
The described power distribution management system for electronic power source special car, preferably, control unit connects energy-storage battery bag charging signals and rectifies pole, control unit connects driving power brick charging signals and rectifies pole, control unit connects energy-storage battery bag charging signals end negative pole, control unit connects driving power brick charging signals end negative pole, and control unit connects vehicle speed signal input end.
The described power distribution management system for electronic power source special car, preferably, also comprises: above fill current consumer, car load high tension supply splitter box, isolation DC conv, a/c system and electric machine controller;
Described upper dress current consumer connects power distribution management system, described car load high tension supply splitter box connects power distribution management system, described car load high tension supply splitter box also connects isolation DC conv, a/c system and electric machine controller respectively, and described electric machine controller connects power distribution management system by the second CAN.
The present invention also discloses a kind of power distribution management process for electronic power source special car, and its key is, comprises the steps:
Step 1, energy-storage battery bag powers to upper dress current consumer, when occurring that energy-storage battery bag electricity is less than certain threshold value, and upper dress current consumer is when also needing electricity consumption, by power distribution management system according to the charge condition driving power brick, call and drive power brick upwards to fill current consumer and power, and by power distribution management system to energy-storage battery bag with drive power brick to carry out Charge Management;
Step 2, power brick is driven to power to crane device, and control by power distribution management system the increasing journey that energy-storage battery bag increases traveling, described driving power brick changes the logic control of electricity to chassis power device, and it is mutual that the data of described power distribution management system carry out route by CAN control contactor unit.
The described power distribution management process for electronic power source special car, preferably, described step 1 comprises:
Step 1-1, energy-storage battery bag provides power supply for upper dress current consumer, when car speed sensor pulse-free signal exports, car load is under parked state, the remaining capacity SOC of energy-storage battery bag is greater than first threshold, power distribution management system makes the first contactless switch K1 be in off-state, the second contactless switch K2 is in attracting state, and energy-storage battery bag is powered to upper dress current consumer, and upper dress current consumer obtains electric and works;
Step 1-2, along with the operation of upper dress current consumer, when power distribution management system obtain energy-storage battery bag SOC be less than or equal to first threshold time, power distribution management system first disconnect second contactless switch K2 energy-storage battery bag stop upwards fill current consumer power; If driving power brick now electricity is greater than Second Threshold, can meet the requirement of vehicle return, power distribution management system makes the first contactless switch K1 adhesive, passes to upper dress current consumer supplying power for outside by driving the unnecessary electricity of power brick; When driving power brick SOC to be less than or equal to the 3rd threshold value, power distribution management system makes the first contactless switch K1 proceed to off-state by on-state, stops driving power brick upwards to fill current consumer and powers;
Step 1-3, when energy-storage battery bag charging signals, power brick charging signals and ON shelves signal any one or three signals are driven to be all high level, power distribution management system judges to drive power brick or energy-storage battery bag to carry out charge/discharge operation, one BMS of energy-storage battery bag and the 2nd BMS of driving power brick carries out managing electric quantity, the power output end of power distribution management system exports high level, for a BMS of energy-storage battery bag and the 2nd BMS of driving power brick provides working power.
The described power distribution management process for electronic power source special car, preferably, described step 1 also comprises:
Step 1-4, when driving power brick charging signals and energy-storage battery bag charging signals are high level, first contactless switch K1, the 4th contactless switch K4 disconnect, and the second contactless switch K2, the 3rd contactless switch K3 adhesive, driving power brick is powered to chassis consumer, energy-storage battery bag is powered to upper dress current consumer;
Step 1-5, when driving power brick charging signals high level, energy-storage battery bag are low level, second contactless switch K2, the 4th contactless switch K4 disconnect, the first contactless switch K1, the 3rd contactless switch K3 adhesive, and driving power brick is powered to chassis consumer and upper dress current consumer;
Step 1-6, when energy-storage battery bag charging signals high level, driving power brick are low level, first contactless switch K1, the 3rd contactless switch K3 disconnect, the second contactless switch K2, the 4th contactless switch K4 adhesive, and energy-storage battery bag is powered to chassis consumer and upper dress current consumer;
Step 1-7, when ST signal high level, power distribution management system need carry out electrical source exchange, now chassis powers on simultaneously and may cause chassis preliminary filling fault, by power distribution management system have when ON shelves signal high level switch electricity mark time, namely export and change electric preliminary filling inhibit signal, complete until switch electricity.
The described power distribution management process for electronic power source special car, preferably, described step 2 comprises:
Step 2-1, after ST signal is effective, closes the supply access closing dress current consumer, namely closes the first contactless switch K1 and the second contactless switch K2, and vehicle does not upwards fill current consumer and powers in travelling; If when having detected that satisfied 3rd contactless switch K3 switches the 4th contactless switch K4 identification condition, power distribution management system has controlled after the 3rd contactless switch K3 disconnects, the 4th contactless switch K4 adhesive after time delay t1 second; If detect the mark having the 4th contactless switch K4 to switch the 3rd contactless switch K3, after power distribution management system controls the 4th contactless switch K4 disconnection, through time delay t1 contactless switch K3 adhesive second the 3rd, if without changing electricity mark, 3rd contactless switch K3 adhesive during ON shelves signal high level in parking flow process, chassis can obtain electric by normal pre-charge;
Step 2-2, but when driving power brick SOC to be less than first threshold, if now energy-storage battery bag is greater than the electricity of the 4th threshold value in addition, arrange the 3rd contactless switch K3 switching the 4th contactless switch K4 to identify, prompting energy-storage battery is surrounded by electricity and may be used for travelling, energy-storage battery bag is switched to and travels, to increase travelled distance for vehicle; Energy storage electricity is less than first threshold, and relay indicating light becomes discountinuity high frequency flicker from often bright, and prompting operator people energy-storage battery available power is used up; Drive the SOC of power brick to be less than first threshold, relay indicating light becomes high frequency flicker from often bright, and alert drives available battery charge to use up;
Step 2-3, if the 3rd contactless switch K3 adhesive, drive power brick to power to chassis power device, the data of the second CAN and the data of the 5th CAN driving the 2nd BMS place of power brick are carried out data interaction by power distribution management system; If the 4th contactless switch K4 adhesive, energy-storage battery bag is powered to chassis power device, and the data of the 4th CAN at a BMS place of the data of the second CAN and energy-storage battery bag are carried out data interaction by power distribution management system.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
Power distribution management system controls branch unit by control unit, contactless switch driver element two and forms.For dual power supply electric car power supply allocation manager, and the battery management system data being in different CAN network can be carried out bus routing forwarding and BMS power supply is managed.
Power distribution management system can realize the function of parking parking energy storage electricity expansion and the function of driving driving course continuation mileage electricity increasing journey, adds the technique effect of course continuation mileage.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is power distribution management system schematic diagram of the present invention;
Fig. 2 is power distribution management system internal circuit diagram of the present invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " longitudinal direction ", " transverse direction ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
In describing the invention, unless otherwise prescribed and limit, it should be noted that, term " installation ", " being connected ", " connection " should be interpreted broadly, such as, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
As shown in Figure 1, for the power distribution management system of electronic power source special car, its key is, comprising: the first battery charger, the second battery charger, a BMS, the 2nd BMS, energy-storage battery bag, driving power brick and power distribution management system;
Described first battery charger connects a BMS by the 3rd CAN, a described BMS is connected with energy-storage battery bag, first battery charger carries out data transmission by a BMS of the 3rd CAN and energy-storage battery bag, and a BMS carries out charging/discharging voltage, electric current, managing electric quantity to energy-storage battery bag;
Described second battery charger connects the 2nd BMS by the first CAN, described 2nd BMS is connected with driving power brick, second battery charger carries out data transmission by the first CAN with driving the 2nd BMS of power brick, and the 2nd BMS carries out charging/discharging voltage, electric current, managing electric quantity to driving power brick;
A described BMS connects power distribution management system by the 4th CAN, described 2nd BMS connects power distribution management system by the 5th CAN, the electricity of described energy-storage battery bag passes through the 4th CAN by a BMS of energy-storage battery bag, and the electricity of described driving power brick sends into power distribution management system by driving the 2nd BMS of power brick by the 5th CAN, also upwards dress consumer and chassis consumer are powered with distribution to carry out managing electric quantity by power distribution management system.
The described power distribution management system for electronic power source special car, preferably, described power distribution management system comprises: control unit ECU and contact unit,
Control unit connects the 4th CAN low tension terminal, control unit connects the 4th CAN high-pressure side, control unit connects the second CAN low tension terminal, control unit connects the second CAN high-pressure side, control unit connects the 5th CAN low tension terminal, control unit connects the 5th CAN high-pressure side, control unit connects externally fed positive source, control unit connects externally fed power cathode, control unit connects contact unit, and described controller unit connects driving power brick and energy-storage battery bag respectively.
As shown in Figure 2, the described power distribution management system for electronic power source special car, preferably, described contact unit comprises: the first contactless switch K1, the second contactless switch K2, the 3rd contactless switch K3 and the 4th contactless switch K4;
First contactless switch control end of one end connection control unit of the input circuit of described first contactless switch K1, the relay common point of the other end connection control unit of the input circuit of described first contactless switch K1;
First contactless switch control end of one end connection control unit of the input circuit of described second contactless switch K2, the relay common point of the other end connection control unit of the input circuit of described second contactless switch K2;
First contactless switch control end of one end connection control unit of the input circuit of described 3rd contactless switch K3, the relay common point of the other end connection control unit of the input circuit of described 3rd contactless switch K3;
First contactless switch control end of one end connection control unit of the input circuit of described 4th contactless switch K4, the relay common point of the other end connection control unit of the input circuit of described 4th contactless switch K4.
The described power distribution management system for electronic power source special car, preferably, described driving power brick positive pole is connected with one end of the output loop of the first contactless switch K1, and the other end of the output loop of described first contactless switch K1 is connected with the positive pole of upper dress current consumer; Described driving power brick negative pole connects upper dress current consumer negative pole and car load high tension supply splitter box negative pole;
Wherein preferred, DC insurance F1 is connected to the output loop of the first contactless switch K1 and the positive pole of upper dress current consumer, or DC insurance F1 is connected to the output loop of the 3rd contactless switch K3 and the positive pole of car load high tension supply splitter box.For preventing battery-driven car relevant device from causing overload damage, and take short-circuit protection in time.
Described energy-storage battery bag positive pole is connected with one end of the output loop of the second contactless switch K2, and the other end of the output loop of described second contactless switch K2 is connected with the positive pole of upper dress current consumer; Described energy-storage battery bag negative pole connects upper dress current consumer negative pole and car load high tension supply splitter box negative pole;
Described driving power brick positive pole is connected with one end of the output loop of the 3rd contactless switch K3, and the other end of the output loop of described 3rd contactless switch K3 is connected with car load high tension supply splitter box positive pole;
Described energy-storage battery bag positive pole is connected with one end of the output loop of the 4th contactless switch K4, and the other end of the output loop of described 4th contactless switch K4 is connected with car load high tension supply splitter box positive pole.
The described power distribution management system for electronic power source special car, preferably, control unit connects energy-storage battery bag charging signals and rectifies pole, control unit connects driving power brick charging signals and rectifies pole, control unit connects energy-storage battery bag charging signals end negative pole, control unit connects driving power brick charging signals end negative pole, and control unit connects vehicle speed signal input end.
The described power distribution management system for electronic power source special car, preferably, also comprises: above fill current consumer, car load high tension supply splitter box, isolation DC conv, a/c system and electric machine controller;
Described upper dress current consumer connects power distribution management system, described car load high tension supply splitter box connects power distribution management system, described car load high tension supply splitter box also connects isolation DC conv, a/c system and electric machine controller respectively, and described electric machine controller connects power distribution management system by the second CAN.
One BMS of energy-storage battery bag carries out the management such as charging/discharging voltage, electric current, electricity to energy-storage battery bag.
The 2nd BMS of power brick is driven to carry out the management such as charging/discharging voltage, electric current, electricity to driving power brick.
The electricity of energy-storage battery bag passes through the 4th CAN by management system the one BMS of energy-storage battery bag, the electricity of power brick is driven all to send into power distribution management system by driving management system the 2nd BMS of power brick by CAN network 5, carry out managing electric quantity by power distribution management system, and power transmission target is distributed.
Power distribution management system mouth respectively with car load fills electricity consumption, chassis electricity consumption is connected, according to the control logics such as managing electric quantity to input power with export consumer carry out path distribution.
Car load high tension supply splitter box provides power supply to chassis consumer DC, air-conditioning, electric machine controller etc.
Power distribution management system respectively by the 4th CAN with the 5th CAN with energy-storage battery bag, drive power brick to be connected, and carry out data interaction by the second CAN and chassis car load high tension supply splitter box CAN network parts.
Power distribution management system is made up of control unit, driving circuit;
Wherein, control unit interface comprises: low potential source, 11 tunnel outputs, 7 tunnel inputs, 3 tunnel CAN network, one group of status indicator lamp.
No. 1 pin, No. 2 pin are respectively power distribution management system power supply both positive and negative polarity input end,
No. 16 pin, No. 18 pin are for driving battery, energy-storage battery charging signals electrode input end, and No. 17 pin, No. 19 pin are for driving battery, energy-storage battery charging signals negative input.Because the power supply of power brick and the power supply of power distribution management system are not powered, therefore in native system, light-coupled isolation is adopted to this signal.Charge condition is high level, and other states are low level.
No. 20 pin, No. 21 pin gather power connection ON shelves signal, the igniting ST shelves signal of key switch respectively, and when ON shelves signal is effective, control unit No. 20 pin are high level, and when ST shelves signal is effective, control unit No. 21 pin are high level.
No. 22 pin are the tachogen incoming signal of transmission shaft, and amplitude is low tension source value, and signal shape is square wave, and frequency is directly proportional to the speed of a motor vehicle.
No. 14 pin are a BMS, the 2nd BMS power supply output pin, and when exporting as high level, a BMS, the 2nd BMS are powered, when exporting as low level, and a BMS, the 2nd BMS power-off.
No. 15 pin are for changing electric delay signal, and being high level when having output, is high-impedance state when not exporting.
4-7 pin is connected with K1-K4 coil negative supply input end respectively, the power on/off of control K1-K4 coil,
11, No. 10 pin CAN low L, CAN height H of being respectively CAN4 network, connects energy-storage battery bag BMS.Wherein L is low tension terminal, and H is high-pressure side.
13, No. 12 pin CAN low L, CAN height H of being respectively CAN2 network, connects car load chassis CAN network.Wherein L is low tension terminal, and H is high-pressure side.
9,8 CAN low L, CAN height H being respectively CAN5 network, connect and drive power brick the 2nd BMS.Wherein L is low tension terminal, and H is high-pressure side.
Status indicator lamp is connected with the 24-29 pin of control unit respectively, be divided into 5 status indicator lamps, for correspondence instruction K1-K4 mode of operation, No. 24 pin high level represent that system works, No. 25-28 corresponding K1-K4 mode of operation, No. 29 pin be 5 indicator lamps publicly.
Driving circuit comprises No. 4 contactless switchs, a DC insurance F1.
End of incoming cables, K1, K3 contact is connected with driving power brick interface, and contact leading-out terminal is connected with upper dress electrical interface, chassis electrical interface respectively.By control unit, the coil of K1, K3 is controlled to the connecting path selecting to drive power brick and upper dress consumer interface.
End of incoming cables, K2, K4 contact is connected with energy-storage battery bag, and contact leading-out terminal is connected with upper dress electrical interface, chassis electrical interface respectively.By control unit, the connecting path selecting energy-storage battery bag and consumer interface is controlled to K2, K4 coil.
Insurance is used for excess current, the short-circuit protection of upper dress consumer.
Specific descriptions wherein for the power distribution management process of electronic power source special car are:
Power distribution management system radical function is divided into parking parking energy storage electricity expanded function, driving driving course continuation mileage electricity increasing Cheng Gongneng;
1, parking energy storage electricity expansion
After energy-storage battery bag powers to the outside current consumer of upper dress, when occurring energy-storage battery bag electricity < 10%, and upper dress outside current consumer is when also needing electricity consumption, now power distribution management system can according to driving the charge condition of power brick, call drive power brick externally current consumer power;
1-1, energy-storage battery bag are powered to the outside current consumer of upper dress and are changed electric logic
The Main Function of energy-storage battery bag is for the current consumer of outside vehicle provides power supply, is the current consumer service of outside.When car speed sensor pulse-free signal exports, car load is under parking dead ship condition, the remaining capacity SOC of energy-storage battery bag is greater than 10%, power distribution management system makes that contactless switch K1 is in off-state, K2 is in attracting state, make energy-storage battery bag to upper dress power supply, the outside current consumer of upper dress obtains electric and works; Along with the carrying out of the outside current consumer of upper dress, when power distribution management system obtain energy-storage battery bag SOC be less than or equal to 10% time, power distribution management system first disconnect K2 energy-storage battery bag stop upwards filling power supply; If driving power brick now electricity is greater than 50%, can meet the requirement of vehicle return, power distribution management system makes K1 adhesive, passes to upper dress supplying power for outside by driving the unnecessary electricity of power brick; When driving power brick SOC to be less than or equal to 40%, power distribution management system makes K1 proceed to off-state by on-state, stops driving power brick upwards to fill power supply.
1-2, BMS power management
Energy-storage battery bag charging signals, power brick charging signals, ON shelves signal any one or three signals are driven to be all high level, power distribution management system judges to drive power brick or energy-storage battery packet system to carry out charge/discharge operation, one BMS, the 2nd BMS need manage power brick electricity, one BMS, the 2nd BMS power output end 21 pin of power distribution management system export high level, for a BMS, the 2nd BMS provide working power.
1-3, Charge Management
1-3-1, two Battery packs charge simultaneously
Drive power brick charging signals and the equal high level of energy-storage battery bag charging signals, control unit control K1, K4 disconnect, K2, K3 adhesive.Driving power brick is powered to chassis consumer, energy-storage battery bag is powered to upper dress consumer.
1-3-2, the charging of driving power brick, energy-storage battery bag do not charge
Drive power brick charging signals high level, energy-storage battery bag low level, control unit control K2, K4 disconnection, K1, K3 adhesive.Driving power brick is powered to chassis consumer and upper dress consumer.
The charging of 1-3-3, energy-storage battery bag, driving power brick are not charged
Energy-storage battery bag charging signals high level, driving power brick low level, control unit control K1, K3 disconnect, K2, K4 adhesive.Energy-storage battery bag is powered to chassis consumer and upper dress consumer.
1-4, change electric protection signal
During ST signal high level, power distribution management system need carry out electrical source exchange, and now chassis powers on simultaneously and may cause chassis preliminary filling fault.Therefore export " changing electric preliminary filling to postpone " signal when power distribution management system when ON shelves signal high level has switching electricity to identify, complete until switch electricity.
2, drive power brick to power to driving and increase to travel with energy-storage battery bag and increase journey
2-1, driving power brick chassis drive and change electric logic
After ST signal is effective, close the supply access K1 closing dress, K2, the outside current consumer that namely vehicle does not upwards fill in travelling is powered.When meeting K3 switching K4 identification condition if detected, after control unit control K3 disconnects, K4 just adhesive after time delay t1.The object of K4 adhesive time delay t1 is that before guaranteeing that K4 adhesive completes, chassis can realize preliminary filling and obtain electric.Have K4 to switch K3 mark if detect, after control unit K4 disconnects, through time delay t1 just K3 adhesive, the object that K3 adhesive postpones t1 is that before guaranteeing that K3 adhesive completes, chassis can realize preliminary filling and obtain electric.If without changing electricity mark, K3 adhesive during ON shelves signal high level in parking flow process, chassis can obtain electric by normal pre-charge.
2-2, increasing journey logic
The Main Function driving power brick is for chassis provides driving power, for vehicle travels service, but when its SOC is less than 10%, if now energy-storage battery bag is greater than the electricity of 20% in addition, arranges K3 over the display and switch K4 mark, prompting energy-storage battery is surrounded by electricity and may be used for travelling, namely relay indicating light becomes flicker from often bright, prompting operator is restarted vehicle and is switched battery path, is switched to by energy-storage battery bag and travels, to increase travelled distance for vehicle; Energy storage electricity is less than 10%, and relay indicating light becomes discountinuity high frequency flicker from often bright, and prompting operator people energy-storage battery available power is used up; Drive the SOC of power brick to be less than 10%, relay indicating light becomes high frequency flicker from often bright, and alert drives available battery charge to use up.
3, data route
If K3 adhesive, drive power brick to chassis Power supply, the data of car load network C AN2 are carried out data interaction with driving power brick BMS place network C AN5 by power distribution management system.
If K4 adhesive, energy-storage battery bag is to chassis Power supply, and the data of car load network C AN2 and energy-storage battery bag BMS place network C AN4 are carried out data interaction by power distribution management system.
Wherein preferred embodiment is, described first threshold is 10%, and Second Threshold is the 50%, three threshold value the 40%, four threshold value is 20%, but in practical operation, be not limited to above-mentioned threshold range.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
Power distribution management system controls branch unit by control unit, contactless switch driver element two and forms.For dual power supply electric car power supply allocation manager, and the battery management system data being in different CAN network can be carried out bus routing forwarding and a BMS, the 2nd BMS power supply are managed.
Power distribution management system can realize the function of parking parking energy storage electricity expansion and the function of driving driving course continuation mileage electricity increasing journey, adds the technique effect of course continuation mileage.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (10)
1. for a power distribution management system for electronic power source special car, it is characterized in that, comprising: the first battery charger, the second battery charger, a BMS, the 2nd BMS, energy-storage battery bag, driving power brick and power distribution management system;
Described first battery charger connects a BMS by the 3rd CAN, a described BMS is connected with energy-storage battery bag, first battery charger carries out data transmission by a BMS of the 3rd CAN and energy-storage battery bag, and a BMS carries out charging/discharging voltage, electric current, managing electric quantity to energy-storage battery bag;
Described second battery charger connects the 2nd BMS by the first CAN, described 2nd BMS is connected with driving power brick, second battery charger carries out data transmission by the first CAN with driving the 2nd BMS of power brick, and the 2nd BMS carries out charging/discharging voltage, electric current, managing electric quantity to driving power brick;
A described BMS connects power distribution management system by the 4th CAN, described 2nd BMS connects power distribution management system by the 5th CAN, the electricity of described energy-storage battery bag passes through the 4th CAN by a BMS of energy-storage battery bag, and the electricity of described driving power brick sends into power distribution management system by driving the 2nd BMS of power brick by the 5th CAN, also upwards dress consumer and chassis consumer are powered with distribution to carry out managing electric quantity by power distribution management system.
2. the power distribution management system for electronic power source special car according to claim 1, is characterized in that, described power distribution management system comprises: control unit (ECU) and contact unit,
Control unit connects the 4th CAN low tension terminal, control unit connects the 4th CAN high-pressure side, control unit connects the second CAN low tension terminal, control unit connects the second CAN high-pressure side, control unit connects the 5th CAN low tension terminal, control unit connects the 5th CAN high-pressure side, control unit connects externally fed positive source, control unit connects externally fed power cathode, control unit connects contact unit, and described controller unit connects driving power brick and energy-storage battery bag respectively.
3. the power distribution management system for electronic power source special car according to claim 2, it is characterized in that, described contact unit comprises: the first contactless switch (K1), the second contactless switch (K2), the 3rd contactless switch (K3) and the 4th contactless switch (K4);
First contactless switch control end of one end connection control unit of the input circuit of described first contactless switch (K1), the relay common point of the other end connection control unit of the input circuit of described first contactless switch (K1);
First contactless switch control end of one end connection control unit of the input circuit of described second contactless switch (K2), the relay common point of the other end connection control unit of the input circuit of described second contactless switch (K2);
First contactless switch control end of one end connection control unit of the input circuit of described 3rd contactless switch (K3), the relay common point of the other end connection control unit of the input circuit of described 3rd contactless switch (K3);
First contactless switch control end of one end connection control unit of the input circuit of described 4th contactless switch (K4), the relay common point of the other end connection control unit of the input circuit of described 4th contactless switch (K4).
4. the power distribution management system for electronic power source special car according to claim 3, it is characterized in that, described driving power brick positive pole is connected with one end of the output loop of the first contactless switch (K1), and the other end of the output loop of described first contactless switch (K1) is connected with the positive pole of upper dress current consumer; Described driving power brick negative pole connects upper dress current consumer negative pole and car load high tension supply splitter box negative pole;
Described energy-storage battery bag positive pole is connected with one end of the output loop of the second contactless switch (K2), and the other end of the output loop of described second contactless switch (K2) is connected with the positive pole of upper dress current consumer; Described energy-storage battery bag negative pole connects upper dress current consumer negative pole and car load high tension supply splitter box negative pole;
Described driving power brick positive pole is connected with one end of the output loop of the 3rd contactless switch (K3), and the other end of the output loop of described 3rd contactless switch (K3) is connected with car load high tension supply splitter box positive pole;
Described energy-storage battery bag positive pole is connected with one end of the output loop of the 4th contactless switch (K4), and the other end of the output loop of described 4th contactless switch (K4) is connected with car load high tension supply splitter box positive pole.
5. the power distribution management system for electronic power source special car according to claim 1, it is characterized in that, control unit connects energy-storage battery bag charging signals and rectifies pole, control unit connects driving power brick charging signals and rectifies pole, control unit connects energy-storage battery bag charging signals end negative pole, control unit connects driving power brick charging signals end negative pole, and control unit connects vehicle speed signal input end.
6. the power distribution management system for electronic power source special car according to claim 1, is characterized in that, also comprise: above fill current consumer, car load high tension supply splitter box, isolation DC conv, a/c system and electric machine controller;
Described upper dress current consumer connects power distribution management system, described car load high tension supply splitter box connects power distribution management system, described car load high tension supply splitter box also connects isolation DC conv, a/c system and electric machine controller respectively, and described electric machine controller connects power distribution management system by the second CAN.
7., for a power distribution management process for electronic power source special car, it is characterized in that, comprise the steps:
Step 1, energy-storage battery bag powers to upper dress current consumer, when occurring that energy-storage battery bag electricity is less than certain threshold value, and upper dress current consumer is when also needing electricity consumption, by power distribution management system according to the charge condition driving power brick, call and drive power brick upwards to fill current consumer and power, and by power distribution management system to energy-storage battery bag with drive power brick to carry out Charge Management;
Step 2, power brick is driven to power to crane device, and control by power distribution management system the increasing journey that energy-storage battery bag increases traveling, described driving power brick changes the logic control of electricity to chassis power device, and it is mutual that the data of described power distribution management system carry out route by CAN control contactor unit.
8. the power distribution management process for electronic power source special car according to claim 7, it is characterized in that, described step 1 comprises:
Step 1-1, energy-storage battery bag provides power supply for upper dress current consumer, when car speed sensor pulse-free signal exports, car load is under parked state, the remaining capacity SOC of energy-storage battery bag is greater than first threshold, power distribution management system makes the first contactless switch (K1) be in off-state, the second contactless switch (K2) is in attracting state, and energy-storage battery bag is powered to upper dress current consumer, and upper dress current consumer obtains electric and works;
Step 1-2, along with the operation of upper dress current consumer, when power distribution management system obtain energy-storage battery bag SOC be less than or equal to first threshold time, power distribution management system first disconnect the second contactless switch (K2) energy-storage battery bag stop upwards fill current consumer power; If driving power brick now electricity is greater than Second Threshold, can meet the requirement of vehicle return, power distribution management system makes the first contactless switch (K1) adhesive, passes to upper dress current consumer supplying power for outside by driving the unnecessary electricity of power brick; When driving power brick SOC to be less than or equal to the 3rd threshold value, power distribution management system makes the first contactless switch (K1) proceed to off-state by on-state, stops driving power brick upwards to fill current consumer and powers;
Step 1-3, when energy-storage battery bag charging signals, power brick charging signals and ON shelves signal any one or three signals are driven to be all high level, power distribution management system judges to drive power brick or energy-storage battery bag to carry out charge/discharge operation, one BMS of energy-storage battery bag and the 2nd BMS of driving power brick carries out managing electric quantity, the power output end of power distribution management system exports high level, for a BMS of energy-storage battery bag and the 2nd BMS of driving power brick provides working power.
9. the power distribution management process for electronic power source special car according to claim 7, it is characterized in that, described step 1 also comprises:
Step 1-4, when driving power brick charging signals and energy-storage battery bag charging signals are high level, first contactless switch (K1), the 4th contactless switch (K4) disconnect, and second contactless switch (K2), the 3rd contactless switch (K3) adhesive, driving power brick is powered to chassis consumer, energy-storage battery bag is powered to upper dress current consumer;
Step 1-5, when driving power brick charging signals high level, energy-storage battery bag are low level, second contactless switch (K2), the 4th contactless switch (K4) disconnect, first contactless switch (K1), the 3rd contactless switch (K3) adhesive, make driving power brick power to chassis consumer and upper dress current consumer;
Step 1-6, when energy-storage battery bag charging signals high level, driving power brick are low level, first contactless switch (K1), the 3rd contactless switch (K3) disconnect, second contactless switch (K2), the 4th contactless switch (K4) adhesive, make energy-storage battery bag power to chassis consumer and upper dress current consumer;
Step 1-7, when ST signal high level, power distribution management system need carry out electrical source exchange, now chassis powers on simultaneously and may cause chassis preliminary filling fault, by power distribution management system have when ON shelves signal high level switch electricity mark time, namely export and change electric preliminary filling inhibit signal, complete until switch electricity.
10. the power distribution management process for electronic power source special car according to claim 7, it is characterized in that, described step 2 comprises:
Step 2-1, after ST signal is effective, closes the supply access closing dress current consumer, namely closes the first contactless switch (K1) and the second contactless switch (K2), and vehicle does not upwards fill current consumer and powers in travelling; If when having detected that satisfied 3rd contactless switch (K3) switches the 4th contactless switch (K4) identification condition, power distribution management system controls after the 3rd contactless switch (K3) disconnects, the 4th contactless switch (K4) adhesive after time delay t1 second; If detecting has the 4th contactless switch (K4) to switch the mark of the 3rd contactless switch (K3), after power distribution management system controls the 4th contactless switch (K4) disconnection, through time delay t1 contactless switch (K3) adhesive second the 3rd, if without changing electricity mark, 3rd contactless switch (K3) adhesive during ON shelves signal high level in parking flow process, chassis can obtain electric by normal pre-charge;
Step 2-2, but when driving power brick SOC to be less than first threshold, if now energy-storage battery bag is greater than the electricity of the 4th threshold value in addition, 3rd contactless switch (K3) is set and switches the 4th contactless switch (K4) mark, prompting energy-storage battery is surrounded by electricity and may be used for travelling, energy-storage battery bag is switched to and travels, to increase travelled distance for vehicle; Energy storage electricity is less than first threshold, and relay indicating light becomes discountinuity high frequency flicker from often bright, and prompting operator people energy-storage battery available power is used up; Drive the SOC of power brick to be less than first threshold, relay indicating light becomes high frequency flicker from often bright, and alert drives available battery charge to use up;
Step 2-3, if the 3rd contactless switch (K3) adhesive, drive power brick to power to chassis power device, the data of the second CAN and the data of the 5th CAN driving the 2nd BMS place of power brick are carried out data interaction by power distribution management system; If the 4th contactless switch (K4) adhesive, energy-storage battery bag is powered to chassis power device, and the data of the 4th CAN at a BMS place of the data of the second CAN and energy-storage battery bag are carried out data interaction by power distribution management system.
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