CN103192734A - Range extender of city electric motor coach based on electric air conditioner and control method for range extender - Google Patents
Range extender of city electric motor coach based on electric air conditioner and control method for range extender Download PDFInfo
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- CN103192734A CN103192734A CN2013100901821A CN201310090182A CN103192734A CN 103192734 A CN103192734 A CN 103192734A CN 2013100901821 A CN2013100901821 A CN 2013100901821A CN 201310090182 A CN201310090182 A CN 201310090182A CN 103192734 A CN103192734 A CN 103192734A
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- increasing unit
- distance increasing
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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
- Y02T10/72—Electric energy management in electromobility
Abstract
The invention discloses a range extender of a city electric motor coach based on an electric air conditioner and a control method for the range extender, and relates to a control technology for the range extender of the city electric motor coach based on an electric air conditioner. The range extender solves the problem that parts, such as a primary machine, a motor and the like, of a conventional rang extending type electric motor car are large in size and high in oil consumption due to the fact that the power of the range extender is too high. The range extender provided by the invention comprises a primary machine, an electric generator, an AC/DC convertor, an engine electronic controller, an electric generator controller and a range extender controller, wherein the range extender controller calculates an optimum operating point of the range extender according to the operation power of the electric air conditioner and an efficient area of the primary machine. When the air conditioner works, a charged state of a power battery is higher than a minimum set point of the charged state and lower than a set threshold value for starting the range extender, so that the range extender is started, and the primary machine works at the optimum operating point. The range extender is suitable for city electric motor coaches based on electric air conditioners.
Description
Technical field
The present invention relates to the control technology of city electric passenger vehicle distance increasing unit, relate in particular to a kind of control technology of the city electric passenger vehicle distance increasing unit based on electric air-conditioning.
Background technology
In the design process of existing extended-range electric vehicle, major part all is that average power required during with vehicle operating is as the main foundation of definite distance increasing unit nominal operation power.Though the shortcoming of this kind design has been to prolong the continual mileage of electrobus, because design horse power is too high, often causes piece volumes such as primary mover, electrical generator bigger, the space that influences the car load power system is arranged, and the oil consumption of driving engine is also higher, has influenced the economy of car load.
Summary of the invention
The objective of the invention is to cause the problems that piece volumes is big, oil consumption is high such as primary mover and driving engine in order to solve existing extended-range electrobus owing to distance increasing unit power is too high, a kind of city electric passenger vehicle distance increasing unit based on electric air-conditioning and the control method of this distance increasing unit are provided.
City electric passenger vehicle distance increasing unit based on electric air-conditioning comprises primary mover 4, electrical generator 5, AC/DC conv 6, Motronic control maps controller 7, engine controller 8 and distance increasing unit controller 9, the power take-off shaft of described primary mover 4 is connected with the power input shaft of electrical generator 5, the electric mouth of electrical generator 5 is connected with the alternating current input end of AC/DC conv 6, and the dc signal mouth of this AC/DC conv 6 is the power supply signal mouth of city electric passenger vehicle distance increasing unit; The tach signal mouth of distance increasing unit controller 9 is connected with the tach signal input end of Motronic control maps controller 7, the control signal mouth of described Motronic control maps controller 7 is connected with the control signal input end of primary mover 4, the dtc signal mouth of distance increasing unit controller 9 is connected with the dtc signal input end of engine controller 8, and the control signal mouth of described engine controller 8 is connected with the control signal input end of electrical generator 5.
City electric passenger vehicle distance increasing unit based on electric air-conditioning also comprises voltage sensor 15 and current sensor 16, voltage sensor 15 is used for gathering the operating voltage signal of the electric air-conditioner control system 3 of input, the voltage signal output end of voltage sensor 15 and distance increasing unit controller 9 are connected by data bus, current sensor 16 is used for gathering the working current signal of the electric air-conditioner control system 3 of input, and the current signal output end of current sensor 16 and distance increasing unit controller 9 are connected by data bus.
Control method based on the city electric passenger vehicle distance increasing unit of electric air-conditioning realizes by following steps:
Step 1, detect to obtain power battery charged state, and the power battery charged state that will detect acquisition sends to distance increasing unit controller 9;
Step 5, whether judge power battery charged state greater than setting threshold, if judged result is for being then to return execution in step one; Otherwise, execution in step six;
Battery charge state described in the step 1 of described control method minimum set-point the state-of-charge peak of electrokinetic cell 20% to 30% between.
Setting threshold in the step 5 of described control method the power battery charged state peak 80% to 90% between.
Best operating point in the step 6 in described control method step obtains by following steps:
A, gather the operating voltage signal of electric air-conditioner control system 3 by voltage sensor 15, also gather the working current signal of electric air-conditioner control system 3 by current sensor 16;
B, calculate electric operation of air conditioner power according to the voltage signal and the current signal that obtain;
C, distance increasing unit controller 9 are efficiently distinguished calculation engine output speed and electrical generator output torque according to electric operation of air conditioner power and primary mover;
D, distance increasing unit controller 9 are sent to Motronic control maps controller 7 with the driving engine output speed that step C obtains;
E, distance increasing unit controller 9 are delivered to engine controller 8 with the electrical generator output torque that step C obtains;
Described driving engine output speed and electrical generator output torque are the best operating point of distance increasing unit.
Of the present invention based on the city electric passenger vehicle distance increasing unit of electric air-conditioning and the control method of this distance increasing unit, determine the best operating point of distance increasing unit according to the high efficient area of electric operation of air conditioner power, distance increasing unit primary mover and electrical generator, mode of operation according to power battery charged state and air-conditioning work situation decision distance increasing unit, required average power when making the horsepower output of distance increasing unit be lower than vehicle operating, engine fuel consumption reduces by 30% to 50%, strengthened the economy of car load, the volume of primary mover and electrical generator also reduces 30% to 50% simultaneously.
Description of drawings
Fig. 1 is the system construction drawing of the control method of the city electric passenger vehicle distance increasing unit based on electric air-conditioning of the present invention and this distance increasing unit.
Fig. 2 is the control method schematic diagram based on the city electric passenger vehicle distance increasing unit of electric air-conditioning described in the present invention.
Fig. 3 is the best operating point preparation method diagram of circuit of the city electric passenger vehicle distance increasing unit based on electric air-conditioning of the present invention.
The specific embodiment
The specific embodiment one, in conjunction with Fig. 1 present embodiment is described, the described city electric passenger vehicle distance increasing unit based on electric air-conditioning of present embodiment comprises primary mover 4, electrical generator 5, AC/DC conv 6, Motronic control maps controller 7, engine controller 8 and distance increasing unit controller 9, the power take-off shaft of described primary mover 4 is connected with the power input shaft of electrical generator 5, the electric mouth of electrical generator 5 is connected with the alternating current input end of AC/DC conv 6, and the dc signal mouth of this AC/DC conv 6 is the power supply signal mouth of city electric passenger vehicle distance increasing unit; The tach signal mouth of distance increasing unit controller 9 is connected with the tach signal input end of Motronic control maps controller 7, the control signal mouth of described Motronic control maps controller 7 is connected with the control signal input end of primary mover 4, the dtc signal mouth of distance increasing unit controller 9 is connected with the dtc signal input end of engine controller 8, and the control signal mouth of described engine controller 8 is connected with the control signal input end of electrical generator 5.
The described city electric passenger vehicle distance increasing unit based on electric air-conditioning of present embodiment in actual application, with the charging end of the power supply signal mouth of city electric passenger vehicle distance increasing unit and the electrokinetic cell 10 of power system of electric automobile 2, traction electric machine the power supply input end of the used frequency converter 14 of dc supply input and the air-conditioning compressor 13 of inverter 11 of 12 usefulness be connected.When distance increasing unit 1 started, distance increasing unit controller 9 was sent to primary mover 4 and electrical generator 5 by Motronic control maps controller 7 and engine controller 8 respectively with primary mover control signal and electrical generator control signal.Primary mover 4 work and drive electrical generator 5 are realized generating, the alternating current that produces converts direct current (DC) output to by AC/DC conv 6, and the electric energy that distance increasing unit institute 1 sends and the electric energy of electrokinetic cell 7 mix the junction realization electric energy of distance increasing unit 1 and electrokinetic cell 7.
The specific embodiment two, in conjunction with Fig. 1 present embodiment is described, the difference that present embodiment and the specific embodiment one described city electric passenger vehicle based on electric air-conditioning increase journey is, described distance increasing unit also comprises voltage sensor 15 and current sensor 16, voltage sensor 15 is used for gathering the operating voltage signal of the electric air-conditioner control system 3 of input, the voltage signal output end of voltage sensor 15 and distance increasing unit controller 9 are connected by data bus, current sensor 16 is used for gathering the working current signal of the electric air-conditioner control system 3 of input, and the current signal output end of current sensor 16 and distance increasing unit controller 9 are connected by data bus.
The described city electric passenger vehicle distance increasing unit based on electric air-conditioning of present embodiment is in actual application, two end of probe of voltage sensor 15 are connected with the electrokinetic cell both positive and negative polarity respectively, current sensor 16 are placed the power supply input end of the used frequency converter 14 of air-conditioning compressor 13.
The specific embodiment three, the difference that present embodiment and the specific embodiment one described city electric passenger vehicle based on electric air-conditioning increase journey are that electrical generator (5) passes through the following steps type selecting:
A, determine primary mover rating horsepower and generator rating power according to the desired output average-power-range of electrobus operation of air conditioner;
B, according to the primary mover rating horsepower, select suitable primary mover (4), record the range of speed of the efficacious workaround of primary mover (4) by experiment;
C, according to the range of speed of the efficacious workaround of primary mover (4), determine the rated speed of rotation of electrical generator (5);
D, according to the efficacious workaround scope of primary mover (4), determine the output torque range of electrical generator (5);
E, the bus voltage fluctuation range during according to the electrokinetic cell normal operation calculate electrical generator output rated line voltage;
F, set up the relation of generator speed and voltage, torque and electric current, determine the parameter of electrical generator (5), finish the type selecting of electrical generator (5).
The specific embodiment four illustrates present embodiment in conjunction with Fig. 2, and present embodiment is described to be the control method of embodiment one or two described city electric passenger vehicle distance increasing units based on electric air-conditioning, and described control method realizes by following steps:
Step 1, detect to obtain power battery charged state, and the power battery charged state that will detect acquisition sends to distance increasing unit controller 9;
Step 5, whether judge power battery charged state greater than setting threshold, if judged result is for being then to return execution in step one; Otherwise, execution in step six;
Detection described in the step 1 obtains power battery charged state, can adopt existing techniques in realizing, for example adopt the battery charge state detection chip to realize the detection of the state-of-charge of electrokinetic cell, perhaps adopt prior aries such as existing power battery charged state checking system, power battery management system can realize that all power battery charged state detects.
Because crossing the low electrokinetic cell 7 that can cause, electrokinetic cell 7 state-of-charges lose, it is aging to accelerate electrokinetic cell 7, so, if power battery charged state less than minimum set-point distance increasing unit controller 9 control primary movers 4 be operated on the peak power point, and then charge for electrokinetic cell 7.
When air-conditioning is opened, during distance increasing unit 1 was opened when power battery charged state was higher than setting threshold, this moment, electrokinetic cell provided electric energy for air-conditioning.When power battery charged state was higher than the minimum set-point of state-of-charge and be lower than the setting threshold of distance increasing unit 1 unlatching, distance increasing unit controller 9 control primary movers 4 made it be operated in its best operating point.Distance increasing unit controller 9 is operated in its best operating point according to electric operation of air conditioner power control primary mover 4, can make primary mover 4 along with electric operation of air conditioner power carries out work.
The specific embodiment five, in conjunction with Fig. 2 present embodiment is described, the difference of the control method of the described city electric passenger vehicle distance increasing unit based on electric air-conditioning of present embodiment and the specific embodiment four is, the battery charge state described in the step 1 of described control method minimum set-point the state-of-charge peak of electrokinetic cell 20% to 30% between.
The specific embodiment six, in conjunction with Fig. 2 present embodiment is described, the difference of the control method of the described city electric passenger vehicle distance increasing unit based on electric air-conditioning of present embodiment and the specific embodiment four is, the setting threshold in the step 3 of described control method the state-of-charge peak of electrokinetic cell 80% to 90% between.
The specific embodiment seven, in conjunction with Fig. 3 present embodiment is described, the difference that the difference of the control method of the described city electric passenger vehicle distance increasing unit based on electric air-conditioning of present embodiment and the specific embodiment four is is that the best operating point in the step 6 of described control method obtains by following steps:
A, gather the operating voltage signal of electric air-conditioner control system 3 by voltage sensor 15, also gather the working current signal of electric air-conditioner control system 3 by current sensor 16;
B, calculate electric operation of air conditioner power according to the voltage signal and the current signal that obtain;
C, distance increasing unit controller 9 are efficiently distinguished calculation engine output speed and electrical generator output torque according to electric operation of air conditioner power and primary mover;
D, distance increasing unit controller 9 are sent to Motronic control maps controller 7 with the driving engine output speed that step C obtains;
E, distance increasing unit controller 9 are delivered to engine controller 8 with the electrical generator output torque that step C obtains;
Described driving engine output speed and electrical generator output torque are the best operating point of distance increasing unit.
The acquisition of the best operating point of present embodiment is the working status parameter that obtains distance increasing unit 1 according to electric operation of air conditioner power calculation.
Claims (7)
1. based on the city electric passenger vehicle distance increasing unit of electric air-conditioning, it is characterized in that: it comprises primary mover (4), electrical generator (5), AC/DC conv (6), Motronic control maps controller (7), engine controller (8) and distance increasing unit controller (9), the power take-off shaft of described primary mover (4) is connected with the power input shaft of electrical generator (5), the electric mouth of electrical generator (5) is connected with the alternating current input end of AC/DC conv (6), and the dc signal mouth of this AC/DC conv (6) is the power supply signal mouth of city electric passenger vehicle distance increasing unit (1); The tach signal mouth of distance increasing unit controller (9) is connected with the tach signal input end of Motronic control maps controller (7), the control signal mouth of described Motronic control maps controller (7) is connected with the control signal input end of primary mover (4), the dtc signal mouth of distance increasing unit controller (9) is connected with the dtc signal input end of engine controller (8), and the control signal mouth of described engine controller (8) is connected with the control signal input end of electrical generator (5).
2. the city electric passenger vehicle distance increasing unit based on electric air-conditioning according to claim 1, it is characterized in that: it also comprises voltage sensor (15) and current sensor (16), voltage sensor (15) is used for gathering the operating voltage signal of the electric air-conditioner control system of input (3), the voltage signal output end of voltage sensor (15) is connected by data bus with distance increasing unit controller (9), current sensor (16) is used for gathering the working current signal of the electric air-conditioner control system of input (3), and the current signal output end of current sensor (16) is connected by data bus with distance increasing unit controller (9).
3. the city electric passenger vehicle distance increasing unit based on electric air-conditioning according to claim 1 is characterized in that: electrical generator (5) is by the following steps type selecting:
A, determine primary mover rating horsepower and generator rating power according to the desired output average-power-range of electrobus operation of air conditioner;
B, according to the primary mover rating horsepower, select suitable primary mover (4), record the range of speed of the efficacious workaround of primary mover (4) by experiment;
C, according to the range of speed of the efficacious workaround of primary mover (4), determine the rated speed of rotation of electrical generator (5);
D, according to the efficacious workaround scope of primary mover (4), determine the output torque range of electrical generator (5);
E, the bus voltage fluctuation range during according to the electrokinetic cell normal operation calculate electrical generator output rated line voltage;
F, set up the relation of generator speed and voltage, torque and electric current, determine the parameter of electrical generator (5), finish the type selecting of electrical generator (5).
4. based on the control method of the described city electric passenger vehicle distance increasing unit based on electric air-conditioning of claim 1, it is characterized in that: described control method realizes by following steps:
Step 1, detect to obtain power battery charged state, and the power battery charged state that will detect acquisition sends to distance increasing unit controller (9);
Step 2, this distance increasing unit controller (9) are judged described power battery charged state whether less than the minimum set-point of battery charge state, if judged result is for being that then execution in step three; Otherwise, execution in step four;
Step 3, control primary mover (4) are started working, and are made this primary mover (4) be operated in its peak power point; Return execution in step one;
Step 4, judge whether electric air-conditioning is in running order, if judged result is for being execution in step five; Otherwise, return execution in step one;
Step 5, whether judge power battery charged state greater than setting threshold, if judged result is for being then to return execution in step one; Otherwise, execution in step six;
Step 6, distance increasing unit controller (9) send control command to Motronic control maps controller (7), make primary mover (4) be operated in its best operating point; Return execution in step one, realize cycle control.
5. the control method of the city electric passenger vehicle distance increasing unit based on electric air-conditioning according to claim 4 is characterized in that: the battery charge state in the step 1 of described control method minimum set-point the power battery charged state peak 20% to 30% between.
6. the control method of the city electric passenger vehicle distance increasing unit based on electric air-conditioning according to claim 4 is characterized in that: the setting threshold in the step 5 of described control method the power battery charged state peak 80% to 90% between.
7. based on the control method of the described city electric passenger vehicle distance increasing unit based on electric air-conditioning of claim 4, it is characterized in that: the best operating point in the step 6 of described control method obtains by following steps:
A, gather the operating voltage signal of electric air-conditioner control system (3) by voltage sensor (15), also gather the working current signal of electric air-conditioner control system (3) by current sensor (16);
B, calculate electric operation of air conditioner power according to the voltage signal and the current signal that obtain;
C, distance increasing unit controller (9) are efficiently distinguished calculation engine output speed and electrical generator output torque according to electric operation of air conditioner power and primary mover;
D, distance increasing unit controller (9) are sent to Motronic control maps controller (7) with the driving engine output speed that step C obtains;
E, distance increasing unit controller (9) are delivered to engine controller (8) with the electrical generator output torque that step C obtains;
Described driving engine output speed and electrical generator output torque are the best operating point of distance increasing unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310090182.1A CN103192734B (en) | 2013-03-20 | 2013-03-20 | Range extender of city electric motor coach based on electric air conditioner and control method for range extender |
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| CN201310090182.1A CN103192734B (en) | 2013-03-20 | 2013-03-20 | Range extender of city electric motor coach based on electric air conditioner and control method for range extender |
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| CN103192734B CN103192734B (en) | 2015-03-11 |
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Cited By (2)
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| CN103879300A (en) * | 2014-01-08 | 2014-06-25 | 天津清源电动车辆有限责任公司 | Method for controlling range extender of extended-range electric vehicle |
| WO2017041751A1 (en) * | 2015-09-11 | 2017-03-16 | 深圳市安顺节能科技发展有限公司 | Extended range all-electric drive low-speed tractor |
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