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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

Active Publication Date: 2015-08-26
BEIJING BORGWARD AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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

Method used

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

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Embodiment Construction

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0028] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element refe...

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L15/32
CPCY02T10/64
Inventor 杨伟斌
Owner BEIJING BORGWARD AUTOMOBILE CO LTD
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