CN103192734B - 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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- CN103192734B CN103192734B CN201310090182.1A CN201310090182A CN103192734B CN 103192734 B CN103192734 B CN 103192734B CN 201310090182 A CN201310090182 A CN 201310090182A CN 103192734 B CN103192734 B CN 103192734B
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- increasing unit
- distance increasing
- electric
- range extender
- controller
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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, particularly relate 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 is all using average power required during vehicle operating as the Main Basis determining distance increasing unit rated operating power.Although the shortcoming of this kind of design is the continual mileage extending electrobus, because design horse power is too high, often cause the piece volumes such as primary mover, electrical generator comparatively large, the space affecting car load power system is arranged, and the oil consumption of driving engine is also higher, have impact on the economy of car load.
Summary of the invention
The object of the invention is in order to solve existing extended-range electrobus due to distance increasing unit power too high and cause the problem that the piece volumes such as primary mover and driving engine is large, oil consumption is high, a kind of control method of the city electric passenger vehicle distance increasing unit based on electric air-conditioning is provided.
City electric passenger vehicle distance increasing unit based on electric air-conditioning comprises primary mover 4, electrical generator 5, AC/DC conv 6, engine electronic control 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 engine electronic control 7, the control signal mouth of described engine electronic control 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 for the operating voltage signal of Gather and input electricity air-conditioner control system 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 for the working current signal of Gather and input electricity air-conditioner control system 3, and the current signal output end of current sensor 16 is connected by data bus with distance increasing unit controller 9.
Control method based on the city electric passenger vehicle distance increasing unit of electric air-conditioning is realized by following steps:
Step one, detection obtain power battery charged state, and send to distance increasing unit controller 9 by detecting the power battery charged state obtained;
Step 2, this distance increasing unit controller 9 judge whether described power battery charged state is less than the minimum set-point of battery charge state, if judged result is yes, then perform step 3; Otherwise, perform step 4;
Step 3, control primary mover 4 are started working, and are made this primary mover 4 be operated in its peak power point; Return and perform step one;
Step 4, judge that whether electric air-conditioning is in running order, if judged result is yes, perform step 5; Otherwise, return and perform step one;
Step 5, judge whether power battery charged state is greater than setting threshold, if judged result is yes, then returns and perform step one; Otherwise, perform step 6;
Step 6, distance increasing unit controller 9 send control command to engine electronic control 7, make primary mover 4 be operated in its best operating point; Return and perform step one, realize cycle control.
Battery charge state described in the step one of described control method minimum set-point between 20% to 30% of the state-of-charge peak of electrokinetic cell.
Setting threshold in the step 5 of described control method is between 80% to 90% of power battery charged state peak.
Best operating point in the step 6 of described control method step is obtained by following steps:
A, gathered the operating voltage signal of electric air-conditioner control system 3 by voltage sensor 15, also gathered the working current signal of electric air-conditioner control system 3 by current sensor 16;
B, according to obtain voltage signal and current signal calculate electric operation of air conditioner power;
C, distance increasing unit controller 9 are according to electric operation of air conditioner power and primary mover efficient district calculation engine output speed and electrical generator Driving Torque;
The driving engine output speed that step C obtains is sent to engine electronic control 7 by D, distance increasing unit controller 9;
The electrical generator Driving Torque that step C obtains is delivered to engine controller 8 by E, distance increasing unit controller 9;
Described driving engine output speed and electrical generator Driving Torque are the best operating point of distance increasing unit.
The control method of the city electric passenger vehicle distance increasing unit based on electric air-conditioning of the present invention, the best operating point of distance increasing unit is determined according to the high efficient area of electric operation of air conditioner power, distance increasing unit primary mover and electrical generator, the mode of operation of distance increasing unit is determined according to power battery charged state and air-conditioning work situation, make the horsepower output of distance increasing unit lower than average power required during vehicle operating, engine fuel consumption reduces by 30% to 50%, enhance the economy of car load, the volume of primary mover and electrical generator also reduces 30% to 50% simultaneously.
Accompanying drawing explanation
Fig. 1 is the system construction drawing based on the city electric passenger vehicle distance increasing unit of electric air-conditioning and the control method of this distance increasing unit of the present invention.
Fig. 2 is the control method schematic diagram of the city electric passenger vehicle distance increasing unit based on 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.
Detailed description of the invention
Detailed description of the invention one, composition graphs 1 illustrates present embodiment, the city electric passenger vehicle distance increasing unit based on electric air-conditioning described in present embodiment comprises primary mover 4, electrical generator 5, AC/DC conv 6, engine electronic control 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 engine electronic control 7, the control signal mouth of described engine electronic control 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 city electric passenger vehicle distance increasing unit based on electric air-conditioning described in present embodiment in actual application, by 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 12 with the DC supply input of inverter 11 and the power supply input end of air-conditioning compressor 13 frequency converter 14 used be connected.When distance increasing unit 1 starts, primary mover control signal and generator control signal are sent to primary mover 4 and electrical generator 5 by engine electronic control 7 and engine controller 8 by distance increasing unit controller 9 respectively.Primary mover 4 works and drive electrical generators 5 realizes generating, the alternating current produced by AC/DC conv 6 convert to direct current (DC) export, distance increasing unit institute 1 transmission electric energy realize the mixing of electric energy at distance increasing unit 1 with the junction of electrokinetic cell 7 with the electric energy of electrokinetic cell 7.
Detailed description of the invention two, composition graphs 1 illustrates present embodiment, the difference that present embodiment and the city electric passenger vehicle based on electric air-conditioning described in detailed description of the invention one increase journey is, described distance increasing unit also comprises voltage sensor 15 and current sensor 16, voltage sensor 15 is for the operating voltage signal of Gather and input electricity air-conditioner control system 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 for the working current signal of Gather and input electricity air-conditioner control system 3, the current signal output end of current sensor 16 is connected by data bus with distance increasing unit controller 9.
The city electric passenger vehicle distance increasing unit based on electric air-conditioning described in present embodiment is in actual application, two of voltage sensor 15 end of probe are connected with electrokinetic cell both positive and negative polarity respectively, current sensor 16 are placed in the power supply input end of air-conditioning compressor 13 frequency converter used 14.
Detailed description of the invention three, the difference that present embodiment and the city electric passenger vehicle based on electric air-conditioning described in detailed description of the invention one increase journey is, electrical generator (5) is by following steps type selecting:
A, to run according to air conditioner for electric motor coach required by output average-power-range determine primary mover rating horsepower and generator rating power;
B, according to 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, range of speed according to the efficacious workaround of primary mover (4), determine the rated speed of rotation of electrical generator (5);
D, efficacious workaround scope according to primary mover (4), determine the Driving Torque scope of electrical generator (5);
E, bus voltage fluctuation range when normally working according to electrokinetic cell, calculate electrical generator amount of exports line voltage;
F, set up the relation of generator speed and voltage, torque and electric current, determine the parameter of electrical generator (5), complete the type selecting of electrical generator (5).
Detailed description of the invention four, composition graphs 2 illustrates present embodiment, and described in present embodiment is the control method of the city electric passenger vehicle distance increasing unit based on electric air-conditioning described in embodiment one or two, and described control method is realized by following steps:
Step one, detection obtain power battery charged state, and send to distance increasing unit controller 9 by detecting the power battery charged state obtained;
Step 2, this distance increasing unit controller 9 judge whether described power battery charged state is less than the minimum set-point of battery charge state, if judged result is yes, then perform step 3; Otherwise, perform step 4;
Step 3, control primary mover 4 are started working, and are made this primary mover 4 be operated in its peak power point; Return and perform step one;
Step 4, judge that whether electric air-conditioning is in running order, if judged result is yes, perform step 5; Otherwise, return and perform step one;
Step 5, judge whether power battery charged state is greater than setting threshold, if judged result is yes, then returns and perform step one; Otherwise, perform step 6;
Step 6, distance increasing unit controller 9 send control command to engine electronic control 7, make primary mover 4 be operated in its best operating point; Return and perform step one, realize cycle control.
Detection described in step one obtains power battery charged state, existing techniques in realizing can be adopted, such as adopt battery charge state detection chip to realize the detection of the state-of-charge of electrokinetic cell, or adopt the prior aries such as existing power battery charged state checking system, power battery management system all can realize power battery charged state detection.
Because the too low meeting of electrokinetic cell 7 state-of-charge causes electrokinetic cell 7 to lose, accelerate electrokinetic cell 7 aging, so if power battery charged state is less than minimum set-point, distance increasing unit controller 9 controls primary mover 4 and is operated on peak power point, and then charge to electrokinetic cell 7.
When air-conditioning is opened, power battery charged state higher than time distance increasing unit 1 open setting threshold time, now electrokinetic cell provides electric energy for air-conditioning.When power battery charged state higher than the minimum set-point of state-of-charge and lower than distance increasing unit 1 open setting threshold time, distance increasing unit controller 9 controls primary mover 4 makes it be operated in its best operating point.Distance increasing unit controller 9 controls primary mover 4 according to electric operation of air conditioner power and is operated in its best operating point, and primary mover 4 can be made to carry out work along with electric operation of air conditioner power.
Detailed description of the invention five, composition graphs 2 illustrates present embodiment, the difference of the control method of present embodiment and the city electric passenger vehicle distance increasing unit based on electric air-conditioning described in detailed description of the invention four is, the battery charge state described in the step one of described control method minimum set-point between 20% to 30% of the state-of-charge peak of electrokinetic cell.
Detailed description of the invention six, composition graphs 2 illustrates present embodiment, the difference of the control method of present embodiment and the city electric passenger vehicle distance increasing unit based on electric air-conditioning described in detailed description of the invention four is, the setting threshold in the step 3 of described control method is between 80% to 90% of the state-of-charge peak of electrokinetic cell.
Detailed description of the invention seven, composition graphs 3 illustrates present embodiment, the difference that the difference of the control method of present embodiment and the city electric passenger vehicle distance increasing unit based on electric air-conditioning described in detailed description of the invention four is is, the best operating point in the step 6 of described control method is obtained by following steps:
A, gathered the operating voltage signal of electric air-conditioner control system 3 by voltage sensor 15, also gathered the working current signal of electric air-conditioner control system 3 by current sensor 16;
B, according to obtain voltage signal and current signal calculate electric operation of air conditioner power;
C, distance increasing unit controller 9 are according to electric operation of air conditioner power and primary mover efficient district calculation engine output speed and electrical generator Driving Torque;
The driving engine output speed that step C obtains is sent to engine electronic control 7 by D, distance increasing unit controller 9;
The electrical generator Driving Torque that step C obtains is delivered to engine controller 8 by E, distance increasing unit controller 9;
Described driving engine output speed and electrical generator Driving 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 obtaining distance increasing unit 1 according to electric operation of air conditioner power calculation.
Claims (4)
1. based on the control method of the city electric passenger vehicle distance increasing unit of electric air-conditioning, the described city electric passenger vehicle distance increasing unit based on electric air-conditioning comprises primary mover (4), electrical generator (5), AC/DC conv (6), engine electronic control (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), 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 engine electronic control (7), the control signal mouth of described engine electronic control (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), the control signal mouth of described engine controller (8) is connected with the control signal input end of electrical generator (5), it is characterized in that: described control method is realized by following steps:
Step one, detection obtain power battery charged state, and send to distance increasing unit controller (9) by detecting the power battery charged state obtained;
Step 2, this distance increasing unit controller (9) judge whether described power battery charged state is less than the minimum set-point of battery charge state, if judged result is yes, then perform step 3; Otherwise, perform step 4;
Step 3, control primary mover (4) are started working, and are made this primary mover (4) be operated in its peak power point; Return and perform step one;
Step 4, judge that whether electric air-conditioning is in running order, if judged result is yes, perform step 5; Otherwise, return and perform step one;
Step 5, judge whether power battery charged state is greater than setting threshold, if judged result is yes, then returns and perform step one; Otherwise, perform step 6;
Step 6, distance increasing unit controller (9) send control command to engine electronic control (7), make primary mover (4) be operated in its best operating point; Return and perform step one, realize cycle control.
2. the control method of the city electric passenger vehicle distance increasing unit based on electric air-conditioning according to claim 1, is characterized in that: the battery charge state in the step one of described control method minimum set-point between 20% to 30% of power battery charged state peak.
3. the control method of the city electric passenger vehicle distance increasing unit based on electric air-conditioning according to claim 1, is characterized in that: the setting threshold in the step 5 of described control method is between 80% to 90% of power battery charged state peak.
4., based on the control method of the city electric passenger vehicle distance increasing unit based on electric air-conditioning according to claim 1, it is characterized in that: the best operating point in the step 6 of described control method is obtained by following steps:
A, gathered the operating voltage signal of electric air-conditioner control system (3) by voltage sensor (15), also gathered the working current signal of electric air-conditioner control system (3) by current sensor (16);
B, according to obtain voltage signal and current signal calculate electric operation of air conditioner power;
C, distance increasing unit controller (9) are according to electric operation of air conditioner power and primary mover efficient district calculation engine output speed and electrical generator Driving Torque;
The driving engine output speed that step C obtains is sent to engine electronic control (7) by D, distance increasing unit controller (9);
The electrical generator Driving Torque that step C obtains is delivered to engine controller (8) by E, distance increasing unit controller (9);
Described driving engine output speed and electrical generator Driving 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 true CN103192734B (en) | 2015-03-11 |
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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 |
| CN204915334U (en) * | 2015-09-11 | 2015-12-30 | 深圳市安顺节能科技发展有限公司 | Increase full electric drive low -speed tractor of form |
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