CN114312353A - Torque control system and method of double-motor electric automobile and double-motor electric automobile - Google Patents

Torque control system and method of double-motor electric automobile and double-motor electric automobile Download PDF

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Publication number
CN114312353A
CN114312353A CN202111660206.3A CN202111660206A CN114312353A CN 114312353 A CN114312353 A CN 114312353A CN 202111660206 A CN202111660206 A CN 202111660206A CN 114312353 A CN114312353 A CN 114312353A
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China
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motor
torque
motor module
real
module
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Chinese (zh)
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段立华
董力嘉
范雨卉
李帅
李伟亮
胡晶
李芝炳
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FAW Group Corp
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FAW Group Corp
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/72Electric energy management in electromobility

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Abstract

The invention discloses a torque control system and method of a double-motor electric automobile and the double-motor electric automobile. The system comprises a vehicle controller, a motor controller, a first motor module and a second motor module; the vehicle controller is in communication connection with the motor controller and is used for identifying the torque required by the vehicle and sending the torque required by the vehicle to the motor controller; the motor controller is electrically connected with the first motor module and the second motor module respectively and is used for receiving the torque required by the whole vehicle; determining respective real-time maximum output torques of the first motor module and the second motor module; and controlling the first motor module and/or the second motor module to output the required torque of the whole vehicle according to the required torque of the whole vehicle, the real-time maximum output torque of the first motor module and the real-time maximum output torque of the second motor module. According to the scheme, the optimal power output is controlled through the motor controller, the problem of data transmission delay is solved, the response efficiency is improved, and the power experience of drivers and passengers is improved.

Description

Torque control system and method of double-motor electric automobile and double-motor electric automobile
Technical Field
The embodiment of the invention relates to a torque control technology of a double-motor electric automobile, in particular to a torque control system and method of the double-motor electric automobile and the double-motor electric automobile.
Background
Pure electric vehicles have a wide prospect because they have less environmental impact than conventional vehicles. The control system of the existing double-motor electric automobile comprises a front motor, a front motor controller, a rear motor controller, a high-voltage battery pack, a battery management system, a whole automobile controller and the like. The power output response of the control system of the whole motor electric automobile is slow, and the power torque control is poor.
Disclosure of Invention
The invention provides a torque control system and method of a double-motor electric automobile and the double-motor electric automobile, which realize the control of optimal power output through a motor controller, solve the problem of no time delay in data transmission, improve the response efficiency and greatly improve the power experience of drivers and passengers.
In a first aspect, an embodiment of the present invention provides a torque control system for a dual-motor electric vehicle, where the torque control system includes: the system comprises a vehicle control unit, a motor controller, a first motor module and a second motor module;
the vehicle controller is in communication connection with the motor controller and is used for identifying the torque required by the vehicle and sending the torque required by the vehicle to the motor controller;
the motor controller is electrically connected with the first motor module and the second motor module respectively and is used for receiving the torque required by the whole vehicle; determining a real-time maximum output torque of the first motor module and a maximum output torque of the second motor module;
and controlling the first motor module and/or the second motor module to output the finished automobile required torque according to the finished automobile required torque, the real-time maximum output torque of the first motor module and the real-time maximum output torque of the second motor module.
Optionally, the motor controller is specifically configured to: when the real-time maximum output torque of the first motor module or the second motor module is larger than the required torque of the whole vehicle, controlling the first motor module or the second motor module to output the required torque of the whole vehicle;
and when the sum of the real-time maximum output torque of the first motor module and the real-time maximum output torque of the second motor module is larger than the required torque of the whole vehicle, controlling the first motor module and the second motor module to jointly output the output torque of the whole vehicle.
Optionally, the system further comprises a power battery module and a boost conversion module;
the motor controller is in communication connection with the boost conversion module and is further used for sending a boost instruction to the boost conversion module when the sum of the real-time maximum output torque of the first motor module and the real-time maximum output torque of the second motor module is smaller than the required torque of the whole vehicle;
the boost conversion module is respectively electrically connected with the power battery, the first motor module and the second motor module and is used for improving the real-time maximum output torque of the first motor module and the real-time maximum output torque of the second motor module according to a boost instruction of the motor controller.
Optionally, the first motor module comprises a first motor inverter and a first motor; the second motor module includes a second motor inverter and a second motor;
the motor controller is respectively electrically connected with the first motor inverter and is used for controlling the first motor inverter and/or the second motor inverter to output three-phase alternating current so as to control the first motor and/or the second motor to output the torque required by the whole vehicle.
In a second aspect, an embodiment of the present invention further provides a torque control method for a dual-motor electric vehicle, which is applied to the torque control system of the dual-motor electric vehicle in the first aspect, where the torque control method includes:
acquiring the required torque of the whole vehicle;
determining a real-time maximum output torque of the first motor module and a real-time maximum output torque of the second motor module;
and controlling the first motor module and/or the second motor module to output the finished automobile required torque according to the finished automobile required torque, the real-time maximum output torque of the first motor module and the real-time maximum output torque of the second motor module.
Optionally, according to the vehicle demand torque, the real-time maximum output torque of the first motor module and the real-time maximum output torque of the second motor module, the first motor module and/or the second motor module outputs the vehicle demand torque, including:
judging whether the real-time maximum output torque of the first motor module or the second motor module is larger than the required torque of the whole vehicle;
if yes, controlling the first motor module or the second motor module to output the required torque of the whole vehicle;
if not, judging whether the sum of the real-time maximum output torque of the first motor module and the real-time maximum output torque of the second motor module is larger than the required torque of the whole vehicle or not;
and when the sum of the real-time maximum output torque of the first motor module and the real-time maximum output torque of the second motor module is larger than the required torque of the whole vehicle, controlling the first motor module and the second motor module to jointly output the required torque of the whole vehicle.
Optionally, the method further includes:
when the sum of the real-time maximum output torque of the first motor module and the real-time maximum output torque of the second motor module is smaller than the required torque of the whole vehicle, sending a boosting instruction to a boosting conversion system;
increasing the real-time maximum output torque of the first motor module and the second motor module according to the boosting command;
and returning to execute and judging whether the real-time maximum output torque of the first motor module or the second motor module is larger than the required torque of the whole vehicle.
Optionally, controlling the first motor module and the second motor module to jointly output the required torque of the whole vehicle includes:
controlling the first motor module to output a first required torque and controlling the second motor module to output a second required torque;
wherein the first required torque is less than or equal to a real-time maximum output torque of the first electric machine module; the second required torque is less than or equal to the real-time maximum output torque of the second motor module; the sum of the first required torque and the second required torque is the total vehicle required torque.
In a third aspect, an embodiment of the present invention further provides a dual-motor electric vehicle, where the dual-motor electric vehicle includes the torque control system of the dual-motor electric vehicle described in the first aspect.
In the embodiment of the invention, the vehicle controller is used for identifying the required torque of the whole vehicle and sending the required torque of the whole vehicle to the motor controller; the motor controller receives the torque required by the whole vehicle; determining a real-time maximum output torque of the first motor module and a maximum output torque of the second motor module; and the first motor module and/or the second motor module are/is controlled to output the whole vehicle required torque according to the whole vehicle required torque, the real-time maximum output torque of the first motor module and the real-time maximum output torque of the second motor module, so that the scheme realizes the control of optimal power output through the motor controller, solves the problem of data transmission delay, improves the response efficiency and improves the power experience of drivers and passengers.
Drawings
FIG. 1 is a block diagram of a torque control system for a dual-motor electric vehicle according to an embodiment of the present invention;
FIG. 2 is a block diagram of another torque control system for a dual-motor electric vehicle according to an embodiment of the present invention;
FIG. 3 is a flow chart of a torque control method for a dual-motor electric vehicle according to an embodiment of the present invention;
FIG. 4 is a flowchart of another torque control method for a dual-motor electric vehicle according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a block diagram of a torque control system of a dual-motor electric vehicle according to an embodiment of the present invention, and as shown in fig. 1, the torque control system of the dual-motor electric vehicle includes: the control system comprises a vehicle control unit 10, a motor controller 20, a first motor module 30 and a second motor module 40; the vehicle control unit 10 is in communication connection with the motor controller 20, and is used for identifying the torque required by the vehicle and sending the torque required by the vehicle to the motor controller 20; the motor controller 20 is electrically connected with the first motor module 30 and the second motor module 40 respectively, and the motor controller 20 is used for receiving the torque required by the whole vehicle; determining a real-time maximum output torque of the first motor module 30 and a maximum output torque of the second motor module 40; and controlling the first motor module 30 and/or the second motor module 40 to output the required torque of the whole vehicle according to the required torque of the whole vehicle, the real-time maximum output torque of the first motor module 30 and the real-time maximum output torque of the second motor module 40.
The torque control process of the torque control system of the double-motor electric automobile is as follows: the vehicle controller 10 can identify the vehicle required torque according to the pedal opening degree information, and send the vehicle required torque to the motor controller 20; the motor controller 20 further determines the real-time maximum output torque of the first motor module 30 and the second motor module 40 according to the real-time output bus voltage, bus current and temperature information; then the motor controller 20 judges whether the real-time maximum output torque of the first motor module 30 or the second motor module 40 is larger than the required torque of the whole vehicle, and when the real-time maximum output torque of the first motor module 30 or the second motor module 40 is larger than the required torque of the whole vehicle, the motor controller 20 controls the first motor module 30 or the second motor module 40 to output the required torque of the whole vehicle; and when the sum of the real-time maximum output torque of the first motor module 30 and the real-time maximum output torque of the second motor module 40 is greater than the required torque of the whole vehicle, controlling the first motor module 30 and the second motor module 40 to jointly output the output torque of the whole vehicle. In this way, the optimal control torque output is realized through the motor controller; in addition, compared with the prior art, first motor module and second motor module are respectively through the drive work of different controllers, the data transmission to different controllers is realized through instruction set data area buffer mode to vehicle control unit, so can arouse the problem of data transmission delay, this scheme is because the comparison of whole car demand torque and the real-time maximum output torque of first motor module and second motor module all realizes in motor controller, still realized that data transmission does not have the delay, response efficiency has been promoted, driver and passenger's dynamic nature experience has been promoted.
Optionally, fig. 2 is a block diagram of a torque control system of another dual-motor electric vehicle according to an embodiment of the present invention, and as shown in fig. 2, the torque control system further includes a power battery module 50 and a boost converter module 60; the motor controller 20 is in communication connection with the boost conversion module 60, and is further configured to send a boost instruction to the boost conversion module 60 when the sum of the real-time maximum output torque of the first motor module 30 and the real-time maximum output torque of the second motor module 40 is smaller than the required torque of the entire vehicle; the boost conversion module 60 is further electrically connected to the power battery module 50, the first motor module 30 and the second motor module 40, respectively, and is configured to increase the real-time maximum output torque of the first motor module 30 and the second motor module 40 according to the boost command of the motor controller 20.
Wherein, when the motor controller 20 determines that the sum of the real-time maximum output torque of the first motor module 30 and the real-time maximum output torque of the second motor module 40 is smaller than the torque required by the entire vehicle, a boost command is sent to the boost conversion module 60, the boost conversion module 60 can be a DC-DC converter, the boost conversion module 60 can increase the bus current and the bus voltage output in real time, thereby increasing the immediate maximum output torque of the first motor module 30 and the immediate maximum output torque of the second motor module 40, and further the motor controller 20 has the capability of controlling the first motor module 30 and the second motor module to output the required torque of the whole vehicle, and at this time, it is determined whether the increased real-time maximum output torque of the first motor module 30 or the real-time maximum output torque of the second motor module 40 is greater than the required torque of the whole vehicle, if so, the first motor module 30 or the second motor module 40 directly outputs the torque required by the whole vehicle; if not, the first and second electric machine modules 30 and 40 jointly output the required torque. Therefore, through the addition of the boost conversion module, under the condition of low power cost of the power battery, the output torque capacity of the first motor module 30 and the second motor module 40 is improved, and the capacity of the torque control system of the whole double-motor electric automobile for outputting the required torque of the whole automobile is further improved.
Alternatively, referring to fig. 2, the first motor module 30 includes a first motor inverter 31 and a first motor 32; the second motor module 40 includes a second motor inverter 41 and a second motor 42; the motor controller 20 is electrically connected to the first motor inverter 31 and the second motor inverter 41, respectively, and is configured to control the first motor inverter 31 and/or the second motor inverter 41 to output three-phase ac power to control the first motor 32 and/or the second motor 42 to output a torque required by the entire vehicle. The first motor inverter 31 and the second motor inverter 41 may be composed of driving power transistors, and the motor controller 20 outputs a control signal to the driving power transistors to enable the driving power transistors to output three-phase alternating current.
The embodiment of the invention also provides a torque control method of the double-motor electric automobile, which is applied to the torque control system of the double-motor electric automobile; FIG. 3 is a flowchart of a torque control method for a dual-motor electric vehicle according to an embodiment of the present invention; as shown in fig. 3, the torque control method includes:
and S110, acquiring the torque required by the whole vehicle.
The required torque of the whole vehicle is the required torque of a driver under different working conditions; the required torque of the whole vehicle can be determined according to the pedal opening information and other information.
And S120, determining the real-time maximum output torque of the first motor module and the real-time maximum output torque of the second motor module.
The real-time maximum output torque of the first motor module and the real-time maximum output torque of the second motor module are the maximum output torque capacity of the first motor module and the second electrode module; which can be determined from real-time bus voltage, bus current and temperature information. The immediate maximum output torque of the first motor module and the immediate maximum output torque of the second motor module may be the same or different.
And S130, controlling the first motor module and/or the second motor module to output the finished automobile required torque according to the finished automobile required torque, the real-time maximum output torque of the first motor module and the real-time maximum output torque of the second motor module.
The scheme controls the first motor module and/or the second motor module to output the finished automobile required torque through the motor controller judging the magnitude of the finished automobile required torque and the real-time maximum output torque of the first motor module and the second motor module, and realizes optimal control torque output.
On the basis of the above embodiment, further detailed description is provided, and fig. 4 is a flowchart of another torque control method for a dual-motor electric vehicle according to an embodiment of the present invention; as shown in fig. 4, the torque control method includes:
and S210, acquiring the required torque of the whole vehicle.
And S220, determining the real-time maximum output torque of the first motor module and the real-time maximum output torque of the second motor module.
And S230, judging whether the real-time maximum output torque of the first motor module or the real-time maximum output torque of the second motor module is larger than the required torque of the whole vehicle.
And S240, if so, controlling the first motor module or the second motor module to output the required torque of the whole vehicle.
In other embodiments, preferably, whether the real-time maximum output torque of the front motor module is greater than the required torque of the whole vehicle is judged first, and if so, the front motor module is controlled to output the required torque of the whole vehicle.
And S250, if not, judging whether the sum of the real-time maximum output torque of the first motor module and the real-time maximum output torque of the second motor module is larger than the required torque of the whole vehicle.
And S260, when the sum of the real-time maximum output torque of the first motor module and the real-time maximum output torque of the second motor module is larger than the required torque of the whole vehicle, controlling the first motor module and the second motor module to jointly output the required torque of the whole vehicle.
The control method comprises the steps that a first motor module and a second motor module are controlled to jointly output the required torque of the whole vehicle, wherein the control method comprises the steps of controlling the first motor module to output a first required torque and controlling the second motor module to output a second required torque; the first required torque is less than or equal to the real-time maximum output torque of the first motor module; the second required torque is less than or equal to the real-time maximum output torque of the second motor module; the sum of the first required torque and the second required torque is the required torque of the whole vehicle; preferably, the ratio of the first required torque to the second required torque can be 1, so that the torque distribution required by the whole vehicle is optimized.
And S270, when the sum of the real-time maximum output torque of the first motor module and the real-time maximum output torque of the second motor module is smaller than the required torque of the whole vehicle, sending a boosting instruction to the boosting conversion system.
S280, improving the real-time maximum output torque of the first motor module and the real-time maximum output torque of the second motor module according to the boosting instruction; and returning to execute and judging whether the real-time maximum output torque of the first motor module or the real-time maximum output torque of the second motor module is larger than the required torque of the whole vehicle.
When the motor controller 20 judges that the sum of the real-time maximum output torque of the first motor module 30 and the real-time maximum output torque of the second motor module 40 is smaller than the required torque of the whole vehicle, a boost instruction is sent to the boost conversion module 60, the boost conversion module 60 can increase the bus current and the bus voltage output in real time, so that the real-time maximum output torque of the first motor module 30 and the second motor module 40 is increased, the motor controller 20 further has the capability of controlling the first motor module 30 and the second motor module to output the required torque of the whole vehicle, and at the moment, the motor controller returns to execute judgment whether the increased real-time maximum output torque of the first motor module 30 and the second motor module 40 is larger than the required torque of the whole vehicle or not, and if so, the first motor module 30 or the second motor module 40 directly outputs the required torque; if not, the first and second electric machine modules 30 and 40 jointly output the required torque.
The embodiment of the invention also provides a double-motor electric automobile which comprises the torque control system of the double-motor electric automobile. Because the dual-motor electric vehicle comprises the torque control system of the dual-motor electric vehicle, the dual-motor electric vehicle also has the beneficial effects of the above embodiment, and the details are not repeated herein.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (9)

1. A torque control system of a dual motor electric vehicle, comprising: the system comprises a vehicle control unit, a motor controller, a first motor module and a second motor module;
the vehicle controller is in communication connection with the motor controller and is used for identifying the torque required by the vehicle and sending the torque required by the vehicle to the motor controller;
the motor controller is electrically connected with the first motor module and the second motor module respectively and is used for receiving the torque required by the whole vehicle; determining a real-time maximum output torque of the first motor module and a real-time maximum output torque of the second motor module;
and controlling the first motor module and/or the second motor module to output the finished automobile required torque according to the finished automobile required torque, the real-time maximum output torque of the first motor module and the real-time maximum output torque of the second motor module.
2. The torque control system of the dual-motor electric vehicle of claim 1, wherein the motor controller is specifically configured to: when the real-time maximum output torque of the first motor module or the real-time maximum output torque of the second motor module is larger than the required torque of the whole vehicle, controlling the first motor module or the second motor module to output the required torque of the whole vehicle;
and when the sum of the real-time maximum output torque of the first motor module and the real-time maximum output torque of the second motor module is larger than the required torque of the whole vehicle, controlling the first motor module and the second motor module to jointly output the output torque of the whole vehicle.
3. The torque control system of the dual-motor electric vehicle as claimed in claim 2, further comprising a power battery module and a boost conversion module;
the motor controller is in communication connection with the boost conversion module and is further used for sending a boost instruction to the boost conversion module when the sum of the real-time maximum output torque of the first motor module and the real-time maximum output torque of the second motor module is smaller than the required torque of the whole vehicle;
the boost conversion module is respectively electrically connected with the power battery module, the first motor module and the second motor module and is used for improving the real-time maximum output torque of the first motor module and the real-time maximum output torque of the second motor module according to a boost instruction of the motor controller.
4. The torque control system of the two-motor electric vehicle of claim 3, wherein the first motor module comprises a first motor inverter and a first motor; the second motor module includes a second motor inverter and a second motor;
the motor controller is respectively electrically connected with the first motor inverter and is used for controlling the first motor inverter and/or the second motor inverter to output three-phase alternating current so as to control the first motor and/or the second motor to output the torque required by the whole vehicle.
5. A torque control method of a dual-motor electric vehicle, applied to the torque control system of the dual-motor electric vehicle as claimed in any one of claims 1 to 4, the torque control method comprising:
acquiring the required torque of the whole vehicle;
determining a real-time maximum output torque of the first motor module and a real-time maximum output torque of the second motor module;
and controlling the first motor module and/or the second motor module to output the finished automobile required torque according to the finished automobile required torque, the real-time maximum output torque of the first motor module and the real-time maximum output torque of the second motor module.
6. The torque control method of the dual-motor electric vehicle as claimed in claim 5, wherein controlling the first motor module and/or the second motor module to output the entire vehicle required torque according to the entire vehicle required torque, the real-time maximum output torque of the first motor module, and the real-time maximum output torque of the second motor module comprises:
judging whether the real-time maximum output torque of the first motor module or the real-time maximum output torque of the second motor module is larger than the required torque of the whole vehicle;
if yes, controlling the first motor module or the second motor module to output the required torque of the whole vehicle;
if not, judging whether the sum of the real-time maximum output torque of the first motor module and the real-time maximum output torque of the second motor module is larger than the required torque of the whole vehicle or not;
and when the sum of the real-time maximum output torque of the first motor module and the real-time maximum output torque of the second motor module is larger than the required torque of the whole vehicle, controlling the first motor module and the second motor module to jointly output the required torque of the whole vehicle.
7. The torque control method of the dual-motor electric vehicle as set forth in claim 6, further comprising:
when the sum of the real-time maximum output torque of the first motor module and the real-time maximum output torque of the second motor module is smaller than the required torque of the whole vehicle, sending a boosting instruction to a boosting conversion system;
increasing the real-time maximum output torque of the first motor module and the second motor module according to the boosting command;
and returning to execute and judging whether the real-time maximum output torque of the first motor module or the real-time maximum output torque of the second motor module is larger than the required torque of the whole vehicle.
8. The torque control method of the dual-motor electric vehicle as claimed in claim 6, wherein controlling the first motor module and the second motor module to jointly output the vehicle required torque comprises:
controlling the first motor module to output a first required torque and controlling the second motor module to output a second required torque;
wherein the first required torque is less than or equal to a real-time maximum output torque of the first electric machine module; the second required torque is less than or equal to the real-time maximum output torque of the second motor module; the sum of the first required torque and the second required torque is the total vehicle required torque.
9. A two-motor electric vehicle comprising a torque control system of a two-motor electric vehicle as claimed in any one of claims 1 to 4.
CN202111660206.3A 2021-12-31 2021-12-31 Torque control system and method of double-motor electric automobile and double-motor electric automobile Pending CN114312353A (en)

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CN202111660206.3A CN114312353A (en) 2021-12-31 2021-12-31 Torque control system and method of double-motor electric automobile and double-motor electric automobile

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Application Number Priority Date Filing Date Title
CN202111660206.3A CN114312353A (en) 2021-12-31 2021-12-31 Torque control system and method of double-motor electric automobile and double-motor electric automobile

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105634338A (en) * 2014-11-07 2016-06-01 湖南南车时代电动汽车股份有限公司 Dual-motor control system, dual-motor controller and coordination control method thereof
CN106062287A (en) * 2014-04-11 2016-10-26 株式会社Kcm Hybrid work machine
CN113147429A (en) * 2021-04-21 2021-07-23 北京汽车股份有限公司 Motor torque control method, device and equipment for dual-motor electric automobile and vehicle
CN113442737A (en) * 2021-06-30 2021-09-28 中国重汽集团济南动力有限公司 Double-motor control system and control method of double-motor combined driving system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106062287A (en) * 2014-04-11 2016-10-26 株式会社Kcm Hybrid work machine
CN105634338A (en) * 2014-11-07 2016-06-01 湖南南车时代电动汽车股份有限公司 Dual-motor control system, dual-motor controller and coordination control method thereof
CN113147429A (en) * 2021-04-21 2021-07-23 北京汽车股份有限公司 Motor torque control method, device and equipment for dual-motor electric automobile and vehicle
CN113442737A (en) * 2021-06-30 2021-09-28 中国重汽集团济南动力有限公司 Double-motor control system and control method of double-motor combined driving system

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Application publication date: 20220412