CN101596873A - The operation mode of hybrid vehicle motor control method - Google Patents
The operation mode of hybrid vehicle motor control method Download PDFInfo
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- CN101596873A CN101596873A CNA2009101467956A CN200910146795A CN101596873A CN 101596873 A CN101596873 A CN 101596873A CN A2009101467956 A CNA2009101467956 A CN A2009101467956A CN 200910146795 A CN200910146795 A CN 200910146795A CN 101596873 A CN101596873 A CN 101596873A
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- 230000009286 beneficial effect Effects 0.000 description 1
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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 present invention relates to a kind of operation mode of hybrid vehicle motor control method, motor operation control efficiency height, perfect in shape and function.Technical scheme: motor control unit MCU is sent to car load control unit HCU with the motor operating state signal, car load control unit HCU sends control command to motor control unit MCU, make machine operation in following operational mode: (1) zero torque mode, the motor output torque is zero under this pattern; (2) velocity mode, control rotating speed of motor start the engine under this pattern; (3) torque mode, motor output assistive drive moment of torsion under this pattern; (4) MCU invalid mode after driving engine successfully starts, enters this pattern automatically, and the pwm signal of MCU output and the inverter of motor are forbidden under this pattern, and mode converting is carried out in wait HCU instruction; (5) fatal error pattern, the pwm signal of MCU output and the inverter of motor forbid that mode converting is forbidden under this pattern.
Description
Technical field
The present invention relates to a kind of operation mode of hybrid vehicle motor control method.
Background technology
At present, people's pay attention to day by day is to the protection of environment and the use effectively and reasonably of the energy.Therefore, hybrid vehicles efficient, energy-saving and environmental protection just become the development tendency of auto trade.Hybrid electric drive system has merged the advantage of combustion engine and motor driven systems, has the advantage of low oil consumption, anti-emission carburetor, long travelled distance, is a kind of feasible scheme.
The parallel type hybrid dynamic car has driving engine and two propulsions source of motor, hybrid vehicle entire car controller (HCU) need be according to the running state of current automobile, carrying out mode of operation judges, send mode request to motor control unit (MCU) then, motor control unit satisfies the demand of car load according to the order control motor of HCU.HCU will directly influence the performance of hybrid vehicle to the accurate judgement and the control of electrical machine working mode, and more failure-free improves electric machine control efficient.
With the maximally related prior art of the present invention be the CN200710131792 patent, though this patent can realize the switching between each pattern of motor, perfect inadequately on function, efficient is not high enough.
Summary of the invention
Goal of the invention of the present invention is to provide a kind of operation mode of hybrid vehicle motor control method, motor operation control efficiency height, perfect in shape and function.
Realize technical scheme of the present invention:
A kind of operation mode of hybrid vehicle motor control method, motor control unit MCU is sent to car load control unit HCU with the motor operating state signal, and car load control unit HCU sends control command to motor control unit MCU, it is characterized in that:
Motor control unit MCU makes machine operation in following operational mode according to car load control unit HCU control command:
(1) zero torque mode, the motor output torque is zero under this pattern;
(2) velocity mode, control rotating speed of motor start the engine under this pattern;
(3) torque mode, motor output assistive drive moment of torsion under this pattern;
(4) MCU invalid mode after driving engine successfully starts, enters this pattern automatically, and the pwm signal of MCU output and the inverter of motor are forbidden under this pattern, and mode converting is carried out in wait HCU instruction;
(5) fatal error pattern, the pwm signal of MCU output and the inverter of motor forbid that mode converting is forbidden under this pattern.
Motor also can move in calibration mode, and MCU carries out proving operation under this pattern.
Can be switched to velocity mode or torque mode under motor zero torque mode.
Under the velocity mode, the speed command that MCU sends is clamped down in certain scope, makes the startup rotating speed of motor speed less than driving engine.
Under the torque mode, HCU sends control command according to motor or inverter temperature, DC bus-bar voltage, engine speed to MCU.
When the motor inverter temperature too high or DC bus-bar voltage, when electric current is too high, enter the fatal error pattern.
Under the MCU invalid mode, fatal error is eliminated; If detected electric current is less than demarcating restriction, MCU can remove the locking of electric current hardware; If detected temperature in the scope of demarcating, is removed the locking of excess temperature hardware.
The beneficial effect that the present invention has:
The present invention makes higher, the more perfect function of motor operation control efficiency.Car load control unit HCU of the present invention at first monitors whole vehicle state, confirm which kind of operational mode motor should operate in, MCU sends instruction to motor control unit, makes motor operate in corresponding work mode, guarantees the steady switching between the various mode of operations of motor.Under the torque mode, too high when motor or inverter temperature, HCU sends control command to MCU, the restriction effective torque.When DC bus-bar voltage was lower than nominal voltage, HCU sent control command to MCU, effectively power controlling.When the speed of driving engine reached very high, MCU can limit effective tosional moment.When DC bus-bar voltage with electric current is too high, the inverter temperature is high excessively, MCU can enter into the fatal error pattern, and the pwm signal of MCU output and the inverter of motor forbid that mode converting is forbidden under this pattern.
When high the arriving to a certain degree of the SOC of battery, then can allow engine operation under the operating mode of efficient, anti-emission carburetor, low moment of torsion, move, this moment, motor utilized the electric energy of electrokinetic cell to drive, provide the assistive drive moment of torsion to driving engine, so just can allow engine operation in zone efficient, anti-emission carburetor always, improve the fuel economy of car load.When vehicle can carry out regenerative brake, can allow power-transfer clutch disconnect, avoid the launched machine of kinetic energy of vehicle to consume, thereby improve the efficient of energy recovery.
Description of drawings
Accompanying drawing is a motor operational mode control flow chart.
The specific embodiment
Car load control unit HCU at first monitors whole vehicle state, confirms which kind of operational mode motor should operate in, and MCU sends instruction to motor control unit, and simultaneously, motor control unit MCU is sent to car load control unit HCU with the motor operating state signal.Motor control unit MCU makes machine operation in following operational mode according to car load control unit HCU control command:
(1) zero torque mode, the motor output torque is zero under this pattern, enables motor inverter, motor zero torque mode can be switched to velocity mode or torque mode.
(2) velocity mode, control rotating speed of motor start the engine under this pattern.If motor speed exceeds the engine starting rotating speed of appointment, then the MCU speed command can be clamped down in allowed limits.MCU can regulate moment of torsion makes motor operate in the speed of appointment, and this torque rating can not become negative value, if Motor torque is driven to when requiring the higher rotating speed of speed, it is zero that Motor torque will be clamped down on, and can be transformed into zero torque mode this moment.
(3) torque mode, motor output assistive drive moment of torsion under this pattern.Too high when motor or inverter temperature, HCU sends control command to MCU, the restriction effective torque.When DC bus-bar voltage was lower than nominal voltage, HCU sent control command to MCU, effectively power controlling.When the speed of driving engine reached very high, MCU can limit effective tosional moment.
(4) MCU invalid mode after driving engine successfully starts, enters this pattern automatically, and the pwm signal of MCU output and the inverter of motor are forbidden under this pattern, and mode converting is carried out in wait HCU instruction.Under the MCU invalid mode, fatal error is eliminated; If detected electric current is less than demarcating restriction, MCU can remove the locking of electric current hardware; If detected temperature in the scope of demarcating, is removed the locking of excess temperature hardware.
(5) fatal error pattern, when the motor inverter temperature too high or DC bus-bar voltage, when electric current is too high, enter the fatal error pattern.The pwm signal of MCU output and the inverter of motor forbid that mode converting is forbidden under this pattern.
(6) calibration mode, MCU carries out proving operation under this pattern.
As shown in the figure, at first motor is in the MCU invalid mode, if the calibration mode request is arranged, just enters into calibration mode, turns back to the MCU invalid mode after finishing.
HCU judges current motor running state, if when the leading zero torque mode is true, so just judge whether driving engine needs quick operated start, if quick operated start is true, transmission speed mode request so, admission velocity pattern start the engine after driving engine successfully starts, transfers the MCU invalid mode to afterwards.If quick operated start is false, judge whether zero torque request is arranged so, if do not have, then send the torque mode request, enter torque mode.
If, need to judge whether quick operated start so when the leading zero torque mode is false, if quick operated start is false, then send zero torque mode request, get back to zero torque mode.Order also can enter the fatal error pattern to MCU according to HCU.
Claims (7)
1, a kind of operation mode of hybrid vehicle motor control method, motor control unit MCU is sent to car load control unit HCU with the motor operating state signal, and car load control unit HCU sends control command to motor control unit MCU, it is characterized in that:
Motor control unit MCU makes machine operation in following operational mode according to car load control unit HCU control command:
(1) zero torque mode, the motor output torque is zero under this pattern;
(2) velocity mode, control rotating speed of motor start the engine under this pattern;
(3) torque mode, motor output assistive drive moment of torsion under this pattern;
(4) MCU invalid mode after driving engine successfully starts, enters this pattern automatically, and the pwm signal of MCU output and the inverter of motor are forbidden under this pattern, and mode converting is carried out in wait HCU instruction;
(5) fatal error pattern, the pwm signal of MCU output and the inverter of motor forbid that mode converting is forbidden under this pattern.
2, operation mode of hybrid vehicle motor control method according to claim 1, it is characterized in that: motor also can move in calibration mode, and MCU carries out proving operation under this pattern.
3, operation mode of hybrid vehicle motor control method according to claim 2 is characterized in that: can be switched to velocity mode or torque mode under motor zero torque mode.
4, operation mode of hybrid vehicle motor control method according to claim 3 is characterized in that: under the velocity mode, the speed command that MCU sends is clamped down in certain scope, makes the startup rotating speed of motor speed less than driving engine.
5, operation mode of hybrid vehicle motor control method according to claim 4 is characterized in that: under the torque mode, HCU sends control command according to motor or inverter temperature, DC bus-bar voltage, engine speed to MCU.
6, operation mode of hybrid vehicle motor control method according to claim 5 is characterized in that: when the motor inverter temperature too high or DC bus-bar voltage, when electric current is too high, enter the fatal error pattern.
7, operation mode of hybrid vehicle motor control method according to claim 6, it is characterized in that: under the MCU invalid mode, fatal error is eliminated; If detected electric current is less than demarcating restriction, MCU can remove the locking of electric current hardware; If detected temperature in the scope of demarcating, is removed the locking of excess temperature hardware.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2009101467956A CN101596873A (en) | 2009-07-03 | 2009-07-03 | The operation mode of hybrid vehicle motor control method |
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| CNA2009101467956A CN101596873A (en) | 2009-07-03 | 2009-07-03 | The operation mode of hybrid vehicle motor control method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102815301A (en) * | 2012-08-16 | 2012-12-12 | 重庆长安汽车股份有限公司 | Method and system for cruise control for pure electric vehicle |
| CN103732431A (en) * | 2011-08-16 | 2014-04-16 | 日立建机株式会社 | Work vehicle |
| CN106828197A (en) * | 2017-03-08 | 2017-06-13 | 常州市裕成富通电机有限公司 | Electric machine control system and electric automobile |
| CN107117069A (en) * | 2017-04-21 | 2017-09-01 | 阿尔特汽车技术股份有限公司 | Motor in electric automobile moment of torsion Super-zero control method |
| CN112590560A (en) * | 2020-11-25 | 2021-04-02 | 浙江合众新能源汽车有限公司 | Energy consumption reduction control method and device for electric automobile |
-
2009
- 2009-07-03 CN CNA2009101467956A patent/CN101596873A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103732431A (en) * | 2011-08-16 | 2014-04-16 | 日立建机株式会社 | Work vehicle |
| CN102815301A (en) * | 2012-08-16 | 2012-12-12 | 重庆长安汽车股份有限公司 | Method and system for cruise control for pure electric vehicle |
| CN102815301B (en) * | 2012-08-16 | 2016-06-29 | 重庆长安汽车股份有限公司 | The method that the cruise of a kind of pure electric automobile controls |
| CN106828197A (en) * | 2017-03-08 | 2017-06-13 | 常州市裕成富通电机有限公司 | Electric machine control system and electric automobile |
| CN107117069A (en) * | 2017-04-21 | 2017-09-01 | 阿尔特汽车技术股份有限公司 | Motor in electric automobile moment of torsion Super-zero control method |
| CN112590560A (en) * | 2020-11-25 | 2021-04-02 | 浙江合众新能源汽车有限公司 | Energy consumption reduction control method and device for electric automobile |
| CN112590560B (en) * | 2020-11-25 | 2022-08-09 | 浙江合众新能源汽车有限公司 | Energy consumption reduction control method and device for electric automobile |
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Application publication date: 20091209 |