CN111585395A - Dual-motor oil cooling control system of electric automobile and control method thereof - Google Patents
Dual-motor oil cooling control system of electric automobile and control method thereof Download PDFInfo
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- CN111585395A CN111585395A CN202010368180.4A CN202010368180A CN111585395A CN 111585395 A CN111585395 A CN 111585395A CN 202010368180 A CN202010368180 A CN 202010368180A CN 111585395 A CN111585395 A CN 111585395A
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- generator
- motor
- oil
- driving motor
- cooling
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
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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
Abstract
The invention discloses a double-motor oil cooling control system of an electric automobile, which comprises a double-motor oil cooling loop, wherein the double-motor oil cooling loop exchanges heat with a water cooling loop through an oil cooler, the double-motor oil cooling loop comprises a driving motor and a generator which are arranged in parallel, the double-motor oil cooling loop further comprises an integrated controller, the signal input end of the integrated controller is respectively in communication connection with an oil temperature sensor, a water temperature sensor, the driving motor and the generator, the signal output end of the integrated controller is respectively in communication connection with a driving motor electromagnetic valve and a generator electromagnetic valve, and the signal output end of the integrated controller is respectively in two-way communication connection with an. The invention also discloses a control method of the double-motor oil cooling control system of the electric automobile, which comprises the steps of 1) acquiring real-time parameters; 2) calculating the cooling flow demand of the motor; 3) determining the total flow requirement of the double motors and the rotating speed of the electric oil pump; 4) control valves and electric oil pumps. The invention can accurately control the cooling flow, has better cooling effect of the motor and reduces the power consumption of the electric oil pump.
Description
Technical Field
The invention relates to the technical field of automobile cooling, in particular to a dual-motor oil cooling control system of an electric automobile and a control method thereof.
Background
The oil-cooled motor is generally provided with a proper oil passage inside the motor, cooling oil is directly sprayed on the stator coil, the stator iron core and the rotor iron core through the oil passage, heat generated by the motor during working is taken away through the cooling oil, and the cooling efficiency of the motor is high. In a hybrid electric vehicle adopting an oil-cooled dual-motor architecture, for a dual-motor oil-cooled cooling circuit, cooling oil paths of two motors are generally connected in parallel. When the scheme of adopting the oil supply of the electric oil pump is adopted, the working conditions of the two motors are not accurately divided generally, and the respective oil supply amount is not controlled according to the different working conditions of the two motors. The working conditions of the two motors are inconsistent, and the heating values of the two motors are inconsistent, so that the flow of cooling oil required by the two motors is inconsistent.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a dual-motor oil cooling control system and a control method thereof for an electric automobile, which can accurately control and match the cooling flow of dual motors and reduce the power consumption of an electric oil pump.
In order to achieve the purpose, the invention provides a dual-motor oil cooling control system of an electric automobile, which is characterized in that: including two motor oil cooling circuit, two motor oil cooling circuit pass through the oil cooler heat transfer with water cooling circuit, two motor oil cooling circuit are including parallelly connected driving motor and the generator that sets up, driving motor with the generator is established ties respectively and is had driving motor solenoid valve and generator solenoid valve.
The integrated controller is characterized by further comprising an integrated controller, wherein a signal input end of the integrated controller is in communication connection with the oil temperature sensor, the water temperature sensor, the driving motor and the generator respectively, a signal output end of the integrated controller is in communication connection with the driving motor electromagnetic valve and the generator electromagnetic valve respectively, and the integrated controller is in two-way communication connection with the electric oil pump and the electric water pump respectively.
Furthermore, the dual-motor oil cooling loop comprises an oil collecting tank, a filter, an electric oil pump, an oil cooling channel of an oil cooler, an oil temperature sensor and a three-way joint which are sequentially connected in series, the three-way joint is respectively connected with a driving motor electromagnetic valve and a generator electromagnetic valve, and oil cooling outlets of the driving motor and the generator are connected with the oil collecting tank.
Further, the water-cooling loop comprises a water-cooling channel of the oil cooler, a water temperature sensor, a radiator, an electric water pump and an integrated controller which are sequentially connected in series.
The invention also provides a control method based on the double-motor oil cooling control system of the electric automobile, which is characterized by comprising the following steps of:
1) obtaining output torque T of driving motorqmTemperature t of driving motorwmGenerator output torque TqgTemperature t of generatorwgThe maximum cooling flow A of the driving motor and the maximum cooling flow B of the generator;
2) respectively calculating actual cooling flow demand A of the driving motorrAnd actual cooling flow demand B of generatorr；
3) Determining a total dual-motor cooling flow demand A _ BrAnd an electric oil pump required rotation speed R;
4) and controlling the opening and closing of the electromagnetic valve of the driving motor and the electromagnetic valve of the generator and the output rotating speed of the electric oil pump.
Further, in the step 2), the temperature and flow demand A of the driving motor is obtained according to the temperature-flow graph and the torque-flow graph of the driving motortAnd drive motor torque flow demand ATqmTaking the maximum value of the two as the actual cooling flow demand A of the driving motorr(ii) a Obtaining the temperature and flow demand B of the generator according to the temperature-flow diagram and the torque-flow diagram of the generatortAnd generator torque flow demand BTqmTaking the maximum value of the two as the actual cooling flow demand B of the generatorr。
Further, in step 3), if ArA is greater than or equal to BrB, the total cooling flow demand of the double motors A _ BrIs Ar× (A + B)/A, if ArA is less than BrB, the total cooling flow demand of the double motors A _ BrIs Br×(A+B)/B。
Further, in step 4), if the driving motor outputs the torque TqmNot equal to 0 or the temperature t of the driving motorwmGreater than critical temperature t of motormOpening the electromagnetic valve of the driving motor, otherwise, closing the electromagnetic valve of the driving motor; if the generator outputs torque TqgNot equal to 0 or critical temperature t of generatorwg＞tmAnd opening the electromagnetic valve of the generator, otherwise, closing the electromagnetic valve of the generator.
The invention has the beneficial effects that: the cooling flow of the double motors is accurately controlled and matched, and the power consumption of the electric oil pump is reduced. The cooling oil is cooled by the water cooling loop, so that the cooling effect of the motor can be further enhanced; the actual cooling flow demand of the motor and the total cooling flow demand of the double motors are determined through the motor temperature and the motor torque, the cooling flow control of the double motors is realized by controlling the opening and closing of the electromagnetic valve of the driving motor electromagnetic valve charge generator and the rotating speed of the electric oil pump, and the power consumption of the electric oil pump is reduced.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention.
FIG. 2 is a flow chart of a control method of the present invention.
Fig. 3 is a temperature-flow diagram of the drive motor.
Fig. 4 is a torque-flow diagram of a drive motor.
Fig. 5 is a temperature-flow diagram of a generator.
Fig. 6 is a torque-flow diagram of a generator.
The components in the figures are numbered as follows: the system comprises an oil cooler 1, an oil temperature sensor 2, a tee joint 3, a driving motor solenoid valve 4, a driving motor 5, a generator 6, a generator 7, an oil collecting tank 8, a filter 9, an electric oil pump 10, an integrated controller 11, an electric water pump 12, a radiator 13 and a water temperature sensor 14.
Detailed Description
The invention will be described in more detail below with reference to the accompanying drawings, which are included to provide a more clear understanding of the invention, but are not intended to limit the invention.
As shown in FIG. 1, a dual-motor oil cooling control system for an electric automobile is characterized in that: the double-motor oil cooling system comprises a double-motor oil cooling loop, wherein the double-motor oil cooling loop and a water cooling loop exchange heat through an oil cooler 1, the double-motor oil cooling loop comprises a driving motor 5 and a generator 7 which are arranged in parallel, and the driving motor 5 and the generator 7 are respectively connected with a driving motor electromagnetic valve 4 and a generator electromagnetic valve 6 in series. Like this, the cooling flow of driving motor and generator can realize independent control, can control according to their respective actual flow demand, and the cooling oil after the water-cooling return circuit heaies up is cooled down, has strengthened the cooling effect of cooling oil.
The system is characterized by further comprising an integrated controller 11, wherein the signal input end of the integrated controller 11 is in communication connection with the oil temperature sensor 2, the water temperature sensor 14, the driving motor 5 and the generator 7 respectively, the signal output end of the integrated controller 11 is in communication connection with the driving motor electromagnetic valve 4 and the generator electromagnetic valve 6 respectively, and the integrated controller 11 is in two-way communication connection with the electric oil pump 10 and the electric water pump 12 respectively. Thus, the integrated controller can control the rotating speed of the electric oil pump and the electric water pump and the opening and closing of the oil cooling pipelines of the two motors according to the acquired temperature, the torque of the motors and the working state of the water pump.
Further, the dual-motor oil cooling loop comprises an oil collecting tank 8, a filter 9, an electric oil pump 10, an oil cooling channel of the oil cooler 1, an oil temperature sensor 2 and a three-way joint 3 which are sequentially connected in series, the three-way joint 3 is respectively connected with a driving motor electromagnetic valve 4 and a generator electromagnetic valve 6, and oil cooling outlets of the driving motor 5 and the generator 7 are connected with the oil collecting tank 8.
Further, the water cooling loop comprises a water cooling channel of the oil cooler 1, a water temperature sensor 14, a radiator 13, an electric water pump 12 and an integrated controller 11 which are connected in series in sequence. In this way, the temperature of the integrated controller is reduced.
The invention also provides a control method based on the double-motor oil cooling control system of the electric automobile, which comprises the following steps as shown in fig. 2:
1. obtaining output torque T of driving motorqmTemperature t of driving motorwmGenerator output torque TqgTemperature t of generatorwgThe maximum cooling flow A of the driving motor and the maximum cooling flow B of the generator;
2. respectively calculating actual cooling flow demand A of the driving motorrAnd actual cooling flow requirement of generatorSolution BrAs shown in FIGS. 3 to 4, the temperature and flow demand A of the driving motor is obtained from the temperature-flow chart and the torque-flow chart of the driving motor 5tAnd drive motor torque flow demand ATqmTaking the maximum value of the two as the actual cooling flow demand A of the driving motorr(ii) a As shown in fig. 5-6, the temperature and flow demand B of the generator is obtained according to the temperature-flow diagram and the torque-flow diagram of the generator 7tAnd generator torque flow demand BTqmTaking the maximum value of the two as the actual cooling flow demand B of the generatorr。
3. Determining a total dual-motor cooling flow demand A _ BrAnd an electric oil pump required rotation speed R; if ArA is greater than or equal to BrB, the total cooling flow demand of the double motors A _ BrIs Ar× (A + B)/A, if ArA is less than BrB, the total cooling flow demand of the double motors A _ BrIs Br× (A + B)/B, obtaining the required rotating speed R of the electric oil pump according to the relation between the flow rate and the rotating speed of the electric oil pump.
4. Controls the opening and closing of the drive motor solenoid valve 4, the generator solenoid valve 6, and the output rotation speed of the electric oil pump 10. If the driving motor outputs torque TqmNot equal to 0 or the temperature t of the driving motorwmGreater than critical temperature t of motormOpening the driving motor electromagnetic valve 4, otherwise, closing the driving motor electromagnetic valve 4; if the generator outputs torque TqgNot equal to 0 or critical temperature t of generatorwg＞tmThe generator solenoid valve 6 is opened, otherwise, the generator solenoid valve 6 is closed.
The cooling oil is cooled by the water cooling loop, so that the cooling effect of the motor can be further enhanced; the actual cooling flow demand of the motor and the total cooling flow demand of the double motors are determined through the motor temperature and the motor torque, the cooling flow control of the double motors is realized by controlling the opening and closing of the electromagnetic valve of the driving motor electromagnetic valve charge generator and the rotating speed of the electric oil pump, and the power consumption of the electric oil pump is reduced.
Claims (7)
1. The utility model provides a two motor oil cooling control system of electric automobile which characterized in that: the double-motor oil cooling system comprises a double-motor oil cooling loop, wherein the double-motor oil cooling loop exchanges heat with a water cooling loop through an oil cooler (1), the double-motor oil cooling loop comprises a driving motor (5) and a generator (7) which are arranged in parallel, and the driving motor (5) and the generator (7) are respectively connected in series with a driving motor electromagnetic valve (4) and a generator electromagnetic valve (6);
still include integrated control ware (11), the signal input part of integrated control ware (11) is connected with oil temperature sensor (2), water temperature sensor (14), driving motor (5) and generator (7) communication respectively, and its signal output part is connected with driving motor solenoid valve (4) and generator solenoid valve (6) communication respectively, integrated control ware (11) are connected with electric oil pump (10) and electric water pump (12) both way communication respectively.
2. The dual-motor oil cooling control system of the electric automobile according to claim 1, characterized in that: the double-motor oil cooling loop comprises an oil collecting tank (8), a filter (9), an electric oil pump (10), an oil cooling channel of an oil cooler (1), an oil temperature sensor (2) and a three-way joint (3), wherein the oil cooling channel, the oil temperature sensor (2) and the three-way joint (3) are sequentially connected in series, the three-way joint (3) is respectively connected with a driving motor electromagnetic valve (4) and a generator electromagnetic valve (6), and oil cooling outlets of the driving motor (5) and a generator (7) are respectively connected with the oil collecting tank (8).
3. The dual-motor oil cooling control system of the electric automobile according to claim 2, characterized in that: the water cooling loop comprises a water cooling channel of the oil cooler (1), a water temperature sensor (14), a radiator (13), an electric water pump (12) and an integrated controller (11) which are sequentially connected in series.
4. A control method of the electric automobile dual-motor oil cooling control system based on any one of the claims 1-3 is characterized by comprising the following steps:
1) obtaining output torque T of driving motorqmTemperature t of driving motorwmGenerator output torque TqgTemperature t of generatorwgThe maximum cooling flow A of the driving motor and the maximum cooling flow B of the generator;
2) respectively meterCalculating actual cooling flow demand A of driving motorrAnd actual cooling flow demand B of generatorr；
3) Determining a total dual-motor cooling flow demand A _ BrAnd an electric oil pump required rotation speed R;
4) controlling the opening and closing of the driving motor electromagnetic valve (4) and the generator electromagnetic valve (6) and the output rotating speed of the electric oil pump (10).
5. The control method of the electric automobile dual-motor oil cooling control system according to claim 4, characterized in that: in step 2), obtaining the temperature and flow demand A of the driving motor according to the temperature-flow diagram and the torque-flow diagram of the driving motor (5)tAnd drive motor torque flow demand ATqmTaking the maximum value of the two as the actual cooling flow demand A of the driving motorr(ii) a Then obtaining the temperature and flow demand B of the generator according to the temperature-flow diagram and the torque-flow diagram of the generator (7)tAnd generator torque flow demand BTqmTaking the maximum value of the two as the actual cooling flow demand B of the generatorr。
6. The control method of the electric automobile dual-motor oil cooling control system according to claim 5, characterized in that: in step 3), if ArA is greater than or equal to BrB, the total cooling flow demand of the double motors A _ BrIs Ar× (A + B)/A, if ArA is less than BrB, the total cooling flow demand of the double motors A _ BrIs Br×(A+B)/B。
7. The control method of the electric vehicle dual-motor oil cooling control system according to claim 6, characterized in that: in step 4), if the driving motor outputs torque TqmNot equal to 0 or the temperature t of the driving motorwmGreater than critical temperature t of motormOpening the driving motor electromagnetic valve (4), otherwise, closing the driving motor electromagnetic valve (4); if the generator outputs torque TqgNot equal to 0 or critical temperature t of generatorwg＞tmThe generator electromagnetic valve (6) is opened, otherwise, the generator electromagnetic valve is closed(6)。
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| CN202010368180.4A CN111585395B (en) | 2020-05-01 | 2020-05-01 | Control method of double-motor oil cooling control system of electric automobile |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113619371A (en) * | 2021-09-15 | 2021-11-09 | 臻驱科技（上海）有限公司 | Oil cooling control system of electric drive assembly |
| CN113847469A (en) * | 2021-08-27 | 2021-12-28 | 东风汽车集团股份有限公司 | Temperature control throttle valve, double-motor cooling system and vehicle |
| CN113978223A (en) * | 2021-11-09 | 2022-01-28 | 安徽江淮汽车集团股份有限公司 | Electric drive system and heat control method thereof |
| CN114675684A (en) * | 2022-03-10 | 2022-06-28 | 东风汽车集团股份有限公司 | Cooling lubricating oil system, control method and device thereof, medium and electronic equipment |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1122466A (en) * | 1997-07-04 | 1999-01-26 | Nissan Motor Co Ltd | Cooling device for hybrid type electric vehicle |
| CN201872568U (en) * | 2010-09-25 | 2011-06-22 | 阿尔特(中国)汽车技术有限公司 | Cooling device for power assembly of electric vehicle |
| US20120249090A1 (en) * | 2011-03-31 | 2012-10-04 | General Electric Company | System and method for controlling a temperature of a generator |
| CN103840608A (en) * | 2012-11-23 | 2014-06-04 | 现代摩比斯株式会社 | Cooling method and device of wheel hub motor |
| CN104890500A (en) * | 2014-12-15 | 2015-09-09 | 吉林大学 | Plug-in hybrid electric vehicle cooling system |
| CN205255998U (en) * | 2015-11-27 | 2016-05-25 | 郑州日产汽车有限公司 | Cooling system of electric automobile |
| CN107508424A (en) * | 2017-05-05 | 2017-12-22 | 宝沃汽车（中国）有限公司 | Determine the method, apparatus and vehicle of the control parameter of cooling system |
| CN108068610A (en) * | 2016-11-15 | 2018-05-25 | 大陆汽车投资（上海）有限公司 | The control device and method of electric vehicle cooling system |
| CN108944395A (en) * | 2018-09-17 | 2018-12-07 | 东风小康汽车有限公司重庆分公司 | A kind of power cooling system for new-energy automobile |
| CN106904070B (en) * | 2015-12-21 | 2019-11-26 | 丰田自动车株式会社 | Vehicle cooling device |
-
2020
- 2020-05-01 CN CN202010368180.4A patent/CN111585395B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1122466A (en) * | 1997-07-04 | 1999-01-26 | Nissan Motor Co Ltd | Cooling device for hybrid type electric vehicle |
| CN201872568U (en) * | 2010-09-25 | 2011-06-22 | 阿尔特(中国)汽车技术有限公司 | Cooling device for power assembly of electric vehicle |
| US20120249090A1 (en) * | 2011-03-31 | 2012-10-04 | General Electric Company | System and method for controlling a temperature of a generator |
| CN103840608A (en) * | 2012-11-23 | 2014-06-04 | 现代摩比斯株式会社 | Cooling method and device of wheel hub motor |
| CN104890500A (en) * | 2014-12-15 | 2015-09-09 | 吉林大学 | Plug-in hybrid electric vehicle cooling system |
| CN205255998U (en) * | 2015-11-27 | 2016-05-25 | 郑州日产汽车有限公司 | Cooling system of electric automobile |
| CN106904070B (en) * | 2015-12-21 | 2019-11-26 | 丰田自动车株式会社 | Vehicle cooling device |
| CN108068610A (en) * | 2016-11-15 | 2018-05-25 | 大陆汽车投资（上海）有限公司 | The control device and method of electric vehicle cooling system |
| CN107508424A (en) * | 2017-05-05 | 2017-12-22 | 宝沃汽车（中国）有限公司 | Determine the method, apparatus and vehicle of the control parameter of cooling system |
| CN108944395A (en) * | 2018-09-17 | 2018-12-07 | 东风小康汽车有限公司重庆分公司 | A kind of power cooling system for new-energy automobile |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113847469A (en) * | 2021-08-27 | 2021-12-28 | 东风汽车集团股份有限公司 | Temperature control throttle valve, double-motor cooling system and vehicle |
| CN113619371A (en) * | 2021-09-15 | 2021-11-09 | 臻驱科技（上海）有限公司 | Oil cooling control system of electric drive assembly |
| CN113619371B (en) * | 2021-09-15 | 2022-08-26 | 臻驱科技（上海）有限公司 | Oil cooling control system of electric drive assembly |
| CN113978223A (en) * | 2021-11-09 | 2022-01-28 | 安徽江淮汽车集团股份有限公司 | Electric drive system and heat control method thereof |
| CN114675684A (en) * | 2022-03-10 | 2022-06-28 | 东风汽车集团股份有限公司 | Cooling lubricating oil system, control method and device thereof, medium and electronic equipment |
| CN114675684B (en) * | 2022-03-10 | 2023-08-29 | 东风汽车集团股份有限公司 | Cooling lubricating oil liquid system, control method and device thereof, medium and electronic equipment |
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