Torque distribution method of dual-motor electric vehicle, system and vehicle

A technology for electric vehicles and torque distribution, applied in electric vehicles, motors, vehicle components, etc., to reduce power consumption and improve cruising range
CN104859486AActive Publication Date: 2015-08-26BEIJING BORGWARD AUTOMOBILE CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING BORGWARD AUTOMOBILE CO LTD
Publication Date
2015-08-26

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Abstract

The invention puts forward a torque distribution method of a dual-motor electric vehicle, which comprises that torque required by the vehicle is acquired; the required torque is distributed to a first drive motor and a second drive motor according to multiple distribution proportions, and sum of motor efficiencies corresponding to the first drive motor and the second drive motor under the multiple distribution proportions is calculated; and according to the distribution proportion corresponding to the sum of the maximum motor efficiencies, the required torque is distributed to the first drive motor and the second drive motor in order to make the first drive motor and the second drive motor output corresponding target torque. According to the torque distribution method of the dual-motor electric vehicle, electricity consumption of the vehicle can be reduced, and a driving mileage of the vehicle is brought up. The invention also discloses a torque distribution system of the dual-motor electric vehicle and the vehicle.
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Description

technical field

[0001] The invention relates to the technical field of automobiles, in particular to a torque distribution method, system and vehicle of an electric automobile with dual motors. Background technique

[0002] At present, electric vehicles use a single-motor or dual-motor drive mechanism. For a single-motor electric vehicle, the target torque of the motor is identified through the accelerator pedal and vehicle speed, and then sent to the motor to make the motor output the corresponding torque. The control is relatively simple. For electric vehicles with dual motors, the control method is mainly aimed at controlling the power transmission path of the motors, for example: how the clutches and gears work when the dual motors work, but how to reasonably distribute the torque to the two motors to maximize the performance of the dual motors. The advantages of motors, such as how to save energy, etc., there is no effective solution in related technologies. Contents ...

Claims

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