CN102616148B - Range extended electric vehicle control system and method - Google Patents
Range extended electric vehicle control system and method Download PDFInfo
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- CN102616148B CN102616148B CN2012101196053A CN201210119605A CN102616148B CN 102616148 B CN102616148 B CN 102616148B CN 2012101196053 A CN2012101196053 A CN 2012101196053A CN 201210119605 A CN201210119605 A CN 201210119605A CN 102616148 B CN102616148 B CN 102616148B
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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
- Y02T10/64—Electric machine technologies in electromobility
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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
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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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
Abstract
The invention discloses a range extended electric vehicle control system, and relates to a whole vehicle control system. The range extended electric vehicle control system comprises an engine controlled by the conventional throttling valve, a generator which is integrally connected with a crank shaft of the engine and has functions of generating power and driving, a vehicle-mounted power battery, a whole vehicle controller, a range extender controller, a battery management system, a battery direct current sensor, an engine controller unit, a generator controller unit, a generator end direct current sensor and a permanent magnet synchronous driving motor, wherein the permanent magnet synchronous driving motor, the power battery and the generator are connected to a power line and used for driving wheels, a motor controller, a motor direct current sensor, the throttling valve and a crank shaft position sensor; the range extender controller communicates with the engine controller unit and the generator controller unit and sends a control instruction; and the range extender controller manages power generation energy and controls an auxiliary system according to a demand of a driver and a state of a range extender system. The invention also discloses a range extended electric vehicle control method. The range extended electric vehicle control system and the range extended electric vehicle control method can be used for electric automobiles.
Description
Technical field
The present invention relates to the electric vehicle engineering field, relate in particular to a kind of stroke-increasing electric automobile control system and control method thereof.
Background technology
The continual mileage of pure electric automobile is that current pure electric automobile is compared with orthodox car, and the aspect of gap is arranged on performance.And the design concept of stroke-increasing electric automobile and occupation mode have just made up the problem of pure electric automobile deficiency aspect continual mileage, but the problem such as the prior art stroke-increasing electric automobile exists power density low, and vibration noise is large.
Summary of the invention
The object of the invention is on available engine control system and generator control system basis, do not carry out engine controller ECU and engine controller GCU develops in the situation of demarcation again, develop control program and the method for stroke-increasing electric automobile to the range extender system functional requirement that meet.
in order to overcome the above problems, a kind of stroke-increasing electric automobile control system, comprise the driving engine of a traditional throttle control, the collection driving that the engine crankshaft one connects and the electrical generator of electricity generate function one, vehicle mounted dynamic battery, entire car controller, the distance increasing unit controller, battery management system, the battery DC current sensor, engine controller, engine controller, the generator end DC current sensor, permanent-magnet synchronous driving motor is connected to power line and is used for driving wheel together with electrokinetic cell and electrical generator, electric machine controller, the motor DC current sensor, throttle gate, crank-position sensor, engine flywheel and generator amature are rigidly connected by mechanical device, integrated inverse power component in engine controller, electrical generator is connected to high voltage bus by engine controller, can be to power battery charging by DC/DC, power to drive motor by electric machine controller, drive motor directly is connected with wheel by mechanical gear box, wherein, driving engine and electrical generator are referred to as distance increasing unit, distance increasing unit controller and engine controller and engine controller carry out communication and sending controling instruction, the distance increasing unit controller carries out generated output energy management and auxiliary control system according to the state of chaufeur demand and range extender system.
Further, as a kind of preferred version, the electrokinetic cell of this system can carry out external charging by Vehicular charger, and the mode of operation of distance increasing unit is subjected to vehicle control unit controls, and distance increasing unit is for power battery charging or to drive motor power supply or the mechanical horsepower of ancillary system is provided.
The invention also discloses a kind of stroke-increasing electric automobile control method, comprise the following steps: the entire car controller collection is from the chaufeur key position, pedal position, gear, ancillary system demand button signal, the charging and discharging currents information that battery current electric quantity SOC and battery allow judges whether that needs start the mode of operation of distance increasing unit and distance increasing unit:
If meet: battery SOC＜30% or air-conditioning request be 1 or the warm braw request be 1 or battery SOC＜90% and acceleration pedal aperture＞80%, after satisfying condition, distance increasing unit starts request and puts 1; And satisfy condition two: the key door position is positioned at On gear and accelerator pedal position＞2%, and the distance increasing unit turn-off request sets to 0; Meet above two conditions, distance increasing unit enters start-up mode;
After entering start-up mode 50ms, judge that engine speed, whether greater than 800rpm, enters the distance increasing unit mode of operation after satisfying condition;
If meet: 30%＜SOC＜=90% and acceleration pedal aperture＞80% enters distance increasing unit and accelerates master mode; Withdraw from distance increasing unit acceleration master mode if meet 30%＜SOC＜=90% and acceleration pedal aperture＜50%;
If meet: SOC＜=30% and the statistics speed of a motor vehicle＜demarcation speed of a motor vehicle 1 enter distance increasing unit the first generating working point control pattern;
If meet: SOC＜=30% and the statistics speed of a motor vehicle＞demarcation speed of a motor vehicle 2 enter distance increasing unit the second generating working point control pattern;
If meet: SOC＞45% and air-conditioning request are 1, enter distance increasing unit idling work point two;
If meet: SOC＞45% and warm braw request are 1, enter distance increasing unit idling work point one;
If meet: SOC＞45% and warm braw request be 0 and the air-conditioning request be 0 and acceleration pedal＜80% or satisfy condition two: the key door position is positioned at Acc gear and accelerator pedal position＜2 and generator speed＜1, the distance increasing unit turn-off request puts 1, enters the distance increasing unit shutdown mode; If meet: detect the electrical generator life signal and be 0 and enter the distance increasing unit " shut " mode".
Further, as a kind of preferred version, at first entire car controller judges driving intention and distance increasing unit state, according to gear signal and the pedal signal of chaufeur, judges the pattern that distance increasing unit should be worked: distance increasing unit is closed, distance increasing unit starts, distance increasing unit generating operation point one, distance increasing unit generating operation point two, distance increasing unit idling work point one, distance increasing unit idling work point two, distance increasing unit acceleration power-assisted point, distance increasing unit shutdown; After the operating mode judgement was completed, the distance increasing unit controller carried out the coordination control of driving engine and electrical generator according to the mode instruction of entire car controller.
Further, as a kind of preferred version, described distance increasing unit starts master mode: electrical generator is operated in the electrical speed master mode, with the 800rpm start the engine, detect generator speed greater than 750rpm, send the engine ignition switch signal, detect engine speed greater than 850rpm and less than 1450rpm, electrical generator enters with turning master mode.
Further; as a kind of preferred version; the shutdown master mode of described distance increasing unit is: sending the electrical generator rotating speed of target is 0; detect generator speed lower than 800rpm; the ignition lock signal kills engine; detect generator speed lower than 5rpm, close electrical generator high pressure control relay, close the electrical generator low-voltage relay after 50ms.
Further, as a kind of preferred version, the permanent power Generation Control of described distance increasing unit pattern is: engine operation is at the torque close-loop control mode, and electrical generator is operated in the rotating speed mode.According to the electrical generator operation point of demarcating, the rotating speed of target of corresponding electrical generator, the target operation torque of driving engine, reach power balance.the distance increasing unit controller is according to the open loop Throttle Position of having demarcated, it is poor that the actual torque that gathers the electrical generator feedback is done as closed loop control reference value and target torque, carry out the correction of open loop Throttle Position, electrical generator always works in rotating speed control mode, the distance increasing unit controller sends rotating speed of target to engine controller according to rotating speed of target with the gradient of 1000rpm/s, wherein the acceleration master mode of distance increasing unit also is in a kind of of permanent power Generation Control, generated output is different from permanent power operation point one and work two, in case distance increasing unit has been in permanent power generating operation point one or two, can not accelerate mode of operation controls.
Further, as a kind of preferred version, described distance increasing unit idling work pattern: meet refrigeration and the demand for heat of chaufeur to the crew module, carry out DRIVEN BY AIR CONDITIONING COMPRESSOR and the idling warming-up provides warm braw, in this two operation point, engine operation is in the rotating speed mode, and electrical generator is in turning state, for electrokinetic cell and drive motor, does not provide electric power.
Owing to adopting the extended-range structure, the control flow of stroke-increasing electric automobile distance increasing unit, under based on available engine and generator techniques characteristics, do not need to redesign exploitation and demarcate ECU and GCU and coordinate to control to reach by extended-range device controller and meet the functional requirement of car load to distance increasing unit.Distance increasing unit mode of operation control policy, can be according to generate electricity operation point switching of driving cycle; Can supplement the characteristic of electrokinetic cell discharge-rate deficiency.Braking energy reclaims and distance increasing unit energy management control policy.The oil consumption of driving engine, as purpose, is carried out energy management and is controlled when at utmost utilizing recuperated energy and save to reclaim.
Description of drawings
When considered in conjunction with the accompanying drawings, by the detailed description with reference to following, can more completely understand better the present invention and easily learn wherein many advantages of following, but accompanying drawing described herein is used to provide a further understanding of the present invention, form a part of the present invention, illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not form to improper restriction of the present invention, wherein:
Fig. 1 is whole-control system and distance increasing unit control system block diagram;
Fig. 2 is the distance increasing unit control flow chart.
The specific embodiment
Referring to Fig. 1-2, embodiments of the invention are described.
For above-mentioned purpose, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Embodiment 1
as shown in Figure 1, a kind of stroke-increasing electric automobile control system, comprise the driving engine 2 of a traditional throttle control, the collection driving that is connected with the engine crankshaft one and the electrical generator 5 of electricity generate function one, vehicle mounted dynamic battery 14, entire car controller 12, distance increasing unit controller 7, battery management system 15, battery DC current sensor 13, engine controller 4, engine controller 6, generator end DC current sensor 8, permanent-magnet synchronous driving motor 11 is connected to power line and is used for driving wheel together with electrokinetic cell 14 and electrical generator 5, electric machine controller 10, motor DC current sensor 9, throttle gate 1, crank-position sensor 3, driving engine 2 flywheels and electrical generator 5 rotors are rigidly connected by mechanical device, integrated inverse power component in engine controller 6, electrical generator 5 is connected to high voltage bus by engine controller 6, can be to electrokinetic cell 14 chargings by DC/DC, give drive motor 11 power supplies by electric machine controller 10, drive motor 11 directly is connected with wheel by mechanical gear box, wherein, driving engine 2 and electrical generator 5 are referred to as distance increasing unit, distance increasing unit controller 7 carries out communication and sending controling instruction with engine controller 4 and engine controller 6, distance increasing unit controller 7 carries out generated output energy management and auxiliary control system according to the state of chaufeur demand and range extender system.
Power battery pack 14 adopts energy work rate to take into account the type storage battery, should meet the requirement of certain continual mileage, also will meet the frequently charging ability of 1.5C～2.5C.The electric current of rechargeable battery management system 15 (BMS) during to power battery pack charging, discharge, voltage, depth of discharge, battery temperature etc. are monitored, and keep the conformability between cell.Drive motor 11 is unique engine installations that pure electric automobile travels.Stroke-increasing electric automobile is operated in while increasing journey pattern (distance increasing unit unlatching), and the power of distance increasing unit is for meet the average demand power of drive motor as far as possible, and electrokinetic cell 14 is used for meeting the instantaneous functional requirement that discharges and recharges power.
The main logic unit of distance increasing unit control system comprises distance increasing unit controller 7 (RE_Controller), engine controller 4 (ECU) and engine controller 6 (GCU).Engine controller 4 (ECU) is original conventional engines 2, possesses every control function of conventional engines: idling open loop control, torque closed loop control, driving engine work at present state-detection, Fan Control relay, FP Fuel Pump Relay control, air condition clutch control, fault detection etc.Engine controller 4 (ECU) receives and carries out throttle control from the acceleration pedal analog signal of distance increasing unit controller 7 (RE_Controller), and then realizes the control of driving engine different load, changes the mechanical input power of distance increasing unit.Engine controller 4 (GCU) possesses rotating speed control mode and with rotary-die type, corresponding rotating speed of target order and mode command from distance increasing unit controller 7 (RE_Controller), and start the engine, for driving engine provides load torque or with turning.Finally reach by the rotating speed of target that changes electrical generator and the load that changes driving engine the generated output that changes distance increasing unit.RE_Controller7 is used for receiving the work order from entire car controller, corresponding motor torque and the engine speed of the different generated outputs of fuel-economy curve setting minimum according to driving engine, state and target instruction target word to driving engine and electrical generator are resolved, and coordinate ECU4 and GCU6 and reach the demand mode of operation of entire car controller to distance increasing unit.In system, the target working speed of driving engine is defined in the minimum fuel oil consumption of driving engine zone, and the target generated output of electrical generator is defined in engine speed and electrical generator base speed scope.Wherein the control of engine air throttle 1 is used for being controlled at the engine load of the generated output of setting, by the target rotating speed point that generates electricity, finds fast the control position of engine air throttle 1.Distance increasing unit will be avoided the speed driving of driving engine in the switching of operation point.
Embodiment 2
As shown in Figure 2, plant the stroke-increasing electric automobile control method, comprise the following steps:
S1, entire car controller collection be from the chaufeur key position, pedal position, and gear, ancillary system demand button signal, the charging and discharging currents information that battery current electric quantity SOC and battery allow judges whether to need to start the mode of operation of distance increasing unit and distance increasing unit:
If S2 meets: battery SOC＜30% or air-conditioning request be 1 or the warm braw request be 1 or battery SOC＜90% and acceleration pedal aperture＞80%, after satisfying condition, distance increasing unit starts request and puts 1; And satisfy condition two: the key door position is positioned at On gear and accelerator pedal position＞2%, and the distance increasing unit turn-off request sets to 0; Meet above two conditions, distance increasing unit enters start-up mode;
S3, enter start-up mode 50ms after, judge that engine speed, whether greater than 800rpm, enters the distance increasing unit mode of operation after satisfying condition;
If S4 meets: 30%＜SOC＜=90% and acceleration pedal aperture＞80% enters distance increasing unit and accelerates master mode; Withdraw from distance increasing unit acceleration master mode if meet 30%＜SOC＜=90% and acceleration pedal aperture＜50%;
If S5 meets: SOC＜=30% and the statistics speed of a motor vehicle＜demarcation speed of a motor vehicle 1 enter distance increasing unit the first generating working point control pattern;
If S6 meets: SOC＜=30% and the statistics speed of a motor vehicle＞demarcation speed of a motor vehicle 2 enter distance increasing unit the second generating working point control pattern;
If S7 meets: SOC＞45% and air-conditioning request are 1, enter distance increasing unit idling work point two;
If S8 meets: SOC＞45% and warm braw request are 1, enter distance increasing unit idling work point one;
If S9 meets: SOC＞45% and warm braw request be 0 and the air-conditioning request be 0 and acceleration pedal＜80% or satisfy condition two: the key door position is positioned at Acc gear and accelerator pedal position＜2 and generator speed＜1, the distance increasing unit turn-off request puts 1, enters the distance increasing unit shutdown mode;
If S10 meets: detect the electrical generator life signal and be 0 and enter the distance increasing unit " shut " mode".
At first entire car controller judges driving intention and distance increasing unit state, according to gear signal and the pedal signal of chaufeur, judges the pattern that distance increasing unit should be worked: distance increasing unit is closed, distance increasing unit starts, distance increasing unit generating operation point one, distance increasing unit generating operation point two, distance increasing unit idling work point one, distance increasing unit idling work point two, distance increasing unit acceleration power-assisted point, distance increasing unit shutdown; After the operating mode judgement was completed, the distance increasing unit controller carried out the coordination control of driving engine and electrical generator according to the mode instruction of entire car controller.
Distance increasing unit starts master mode: electrical generator is operated in the electrical speed master mode, with the 800rpm start the engine, detect generator speed greater than 750rpm, send the engine ignition switch signal, detect engine speed greater than 850rpm and less than 1450rpm, electrical generator enters with turning master mode.
Distance increasing unit starts master mode: electrical generator is operated in the electrical speed master mode, with the 800rpm start the engine, detect generator speed greater than 750rpm, send the engine ignition switch signal, detect engine speed greater than 850rpm and less than 1450rpm, electrical generator enters with turning master mode.
The shutdown master mode of distance increasing unit is: sending the electrical generator rotating speed of target is 0; detect generator speed lower than 800rpm, the ignition lock signal that kills engine, detect generator speed lower than 5rpm; close electrical generator high pressure control relay, close the electrical generator low-voltage relay after 50ms.
The permanent power Generation Control of distance increasing unit pattern is: engine operation is at the torque close-loop control mode, and electrical generator is operated in the rotating speed mode.According to the electrical generator operation point of demarcating, the rotating speed of target of corresponding electrical generator, the target operation torque of driving engine, reach power balance.the distance increasing unit controller is according to the open loop Throttle Position of having demarcated, it is poor that the actual torque that gathers the electrical generator feedback is done as closed loop control reference value and target torque, carry out the correction of open loop Throttle Position, electrical generator always works in rotating speed control mode, the distance increasing unit controller sends rotating speed of target to engine controller according to rotating speed of target with the gradient of 1000rpm/s, wherein the acceleration master mode of distance increasing unit also is in a kind of of permanent power Generation Control, generated output is different from permanent power operation point one and work two, in case distance increasing unit has been in permanent power generating operation point one or two, can not accelerate mode of operation controls.
Distance increasing unit idling work pattern: meet refrigeration and the demand for heat of chaufeur to the crew module, carry out DRIVEN BY AIR CONDITIONING COMPRESSOR and the idling warming-up provides warm braw, in this two operation point, engine operation is in the rotating speed mode, electrical generator is in turning state, for electrokinetic cell and drive motor, does not provide electric power.
The control of distance increasing unit is exactly mainly according to car load, the power demand of distance increasing unit to be carried out the coordination control of driving engine and electrical generator.The major control amount of engine system is the throttle gate of driving engine.Engine air throttle 1 is controlled by stepping motor, with the acceleration pedal direct mechanical, is not connected.Throttle position sensor directly is connected for detection of the throttle gate corner with stepping motor, carries out the Open loop and closed loop of throttle gate and controls.
Starting for engine system the important control parameter of controlling is the idling reference rotation velocity that crank-position sensor 3 and ECU feedback are calculated.The unloading phase, RE_Controller not only needs to detect the rotating speed of present engine, will compare with the idling reference rotation velocity of ECU feedback simultaneously.The range extender system rotating speed sudden change that causes for fear of engine ignition moment and rising sharply, need electrical generator to carry out rotating speed according to the reference idling speed and control, and provides and stablize driving engine because the torque that igniting causes suddenlys change.When detecting engine speed greater than 800rpm and lower than 1450rpm, think that driving engine has entered idling operation.
The coolant water temperature of engine system is to affect whole system to control the key factor of effect in addition, the coolant water temperature of driving engine affects discharging and the fuel economy of driving engine, and affect the stability of throttle control effect, the system disturbance that causes due to the opening and closing of cooling fan is the important external disturbance of stable operating point.So because system temperature can not adopt the open loop of throttle gate to control for the operation point beyond idling, the feedback control parameters that this system adopts is the load torque of engine controller feedback.Engine air throttle carries out interpolation according to the target working speed and obtains open loop control throttle gate parameter, carries out the closed loop PID adjusting of target generated output by the torque parameter of electrical generator Real-time Feedback.
Energy management way about braking energy recovery and distance increasing unit co-ordination:
When distance increasing unit is not worked, formulate the braking energy take-back strategy according to the charging current that battery allows, when distance increasing unit is in running order, RE_Controller control engine throttle gate complete shut-down, generator speed is in turning state, electrical generator does not generate electricity this moment, can not charge to power brick, so can not cause drive motor and distance increasing unit to produce to the power brick charging problem that overcharges in short-term together.
Although more than described the specific embodiment of the present invention, but those skilled in the art is to be understood that, these specific embodiment are only casehistorys, those skilled in the art in the situation that do not break away from principle of the present invention and essence, can carry out various omissions, replacement and change to the details of said method and system.For example, merge the said method step, thereby according to the identical method of essence, carry out the identical function of essence, to realize the identical result of essence, belong to scope of the present invention.Therefore, scope of the present invention is only limited by appended claims.
Claims (6)
1. stroke-increasing electric automobile control method is characterized in that: comprise the following steps:
Entire car controller gathers from the chaufeur key position, pedal position, and gear, ancillary system demand button signal, the charging and discharging currents information that battery current electric quantity SOC and battery allow judges whether that needs start the mode of operation of distance increasing unit and distance increasing unit:
If meet: battery SOC＜30% or air-conditioning request be 1 or the warm braw request be 1 or battery SOC＜90% and acceleration pedal aperture 80%, after satisfying condition, distance increasing unit starts request and puts 1; And satisfy condition two: the key door position is positioned at On gear and accelerator pedal position〉2%, the distance increasing unit turn-off request sets to 0; Meet above two conditions, distance increasing unit enters start-up mode;
After entering start-up mode 50ms, judge that engine speed, whether greater than 800rpm, enters the distance increasing unit mode of operation after satisfying condition;
If meet: 30%＜SOC＜=90% and acceleration pedal aperture〉80% enter distance increasing unit and accelerate master mode; Withdraw from distance increasing unit acceleration master mode if meet 30%＜SOC＜=90% and acceleration pedal aperture＜50%;
If meet: SOC＜=30% and the statistics speed of a motor vehicle＜demarcation speed of a motor vehicle 1 enter distance increasing unit the first generating working point control pattern;
If meet: SOC＜=30% and the statistics speed of a motor vehicle〉demarcate the speed of a motor vehicle 2 and enter distance increasing unit the second generating working point control pattern;
If meet: SOC〉45% and the air-conditioning request be 1, enter distance increasing unit idling work point two;
If meet: SOC〉45% and the warm braw request be 1, enter distance increasing unit idling work point one;
If meet: SOC〉45% and the warm braw request be 0 and the air-conditioning request be 0 and acceleration pedal＜80% or satisfy condition two: the key door position is positioned at Acc gear and accelerator pedal position＜2 and generator speed＜1, the distance increasing unit turn-off request puts 1, enters the distance increasing unit shutdown mode;
If meet: detect the electrical generator life signal and be 0 and enter the distance increasing unit " shut " mode".
2. a kind of stroke-increasing electric automobile control method according to claim 1, it is characterized in that: at first entire car controller judges driving intention and distance increasing unit state, according to gear signal and the pedal signal of chaufeur, judges the pattern that distance increasing unit should be worked: distance increasing unit is closed, distance increasing unit starts, distance increasing unit generating operation point one, distance increasing unit generating operation point two, distance increasing unit idling work point one, distance increasing unit idling work point two, distance increasing unit acceleration power-assisted point, distance increasing unit shutdown; After the operating mode judgement was completed, the distance increasing unit controller carried out the coordination control of driving engine and electrical generator according to the mode instruction of entire car controller.
3. a kind of stroke-increasing electric automobile control method according to claim 2, it is characterized in that: described distance increasing unit starts master mode and is: electrical generator is operated in the electrical speed master mode, with the 800rpm start the engine, detect generator speed greater than 750rpm, send the engine ignition switch signal, detect engine speed greater than 850rpm and less than 1450rpm, electrical generator enters with turning master mode.
4. a kind of stroke-increasing electric automobile control method as claimed in claim 2; it is characterized in that: the shutdown master mode of described distance increasing unit is: sending the electrical generator rotating speed of target is 0; detect generator speed lower than 800rpm; the ignition lock signal kills engine; detect generator speed lower than 5rpm; close electrical generator high pressure control relay, close the electrical generator low-voltage relay after 50ms.
5. a kind of stroke-increasing electric automobile control method as claimed in claim 2 is characterized in that: the permanent power Generation Control of described distance increasing unit pattern is: engine operation is at the torque close-loop control mode, and electrical generator is operated in the rotating speed mode, according to the electrical generator operation point of demarcating, the rotating speed of target of corresponding electrical generator, the target operation torque of driving engine, reach power balance, the distance increasing unit controller is according to the open loop Throttle Position of having demarcated, it is poor that the actual torque that gathers the electrical generator feedback is done as closed loop control reference value and target torque, carry out the correction of open loop Throttle Position, electrical generator always works in rotating speed control mode, the distance increasing unit controller sends rotating speed of target to engine controller according to rotating speed of target with the gradient of 1000rpm/s, wherein the acceleration master mode of distance increasing unit also is in a kind of of permanent power Generation Control, generated output is different from permanent power operation point one and work two, in case distance increasing unit has been in permanent power generating operation point one or two, can not accelerate mode of operation controls.
6. a kind of stroke-increasing electric automobile control method as claimed in claim 2, it is characterized in that: described distance increasing unit idling work pattern: meet refrigeration and the demand for heat of chaufeur to the crew module, carry out DRIVEN BY AIR CONDITIONING COMPRESSOR and the idling warming-up provides warm braw, in this two operation point, engine operation is in the rotating speed mode, electrical generator is in turning state, for electrokinetic cell and drive motor, does not provide electric power.
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