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Distributed drive vehicle torque control method and system

A control method and distributed technology, applied in the direction of control drive, control device, vehicle components, etc., can solve the problem of vehicle loss of stability, achieve the effect of maintaining stability, improving safety, and reducing safety risks

Active Publication Date: 2021-05-18
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to at least solve the problem that the vehicle loses stability due to the same handling method for controlling the motor on the coaxial opposite side of the faulty motor and the torque of the faulty motor when a single motor fault occurs

Method used

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  • Distributed drive vehicle torque control method and system
  • Distributed drive vehicle torque control method and system
  • Distributed drive vehicle torque control method and system

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Embodiment Construction

[0063] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0064] It should be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may also be meant to include the plural forms unless the context clearly dictates otherwise. The terms "comprising", "comprising", "containing" and "having" are inclusive and thus indicate the presence of stated...

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Abstract

The invention belongs to the technical field of vehicle control, and specifically relates to a control method and system for distributed drive vehicle torque. The control method for distributed drive vehicle torque includes obtaining the steering wheel angle of the vehicle, determining the driving state of the vehicle according to the steering wheel angle, and The motor on the coaxial opposite side of the faulty motor is in straight line driving control and has the same torque as the faulty motor, and the motor on the diagonal side of the faulty motor in steering driving control is degraded according to the driving state. According to the method for controlling the torque of a distributed drive vehicle according to the embodiment of the invention, the motor failures are handled differently in different driving states of the vehicle. When the vehicle is running straight, directly control the torque of the coaxial opposite motor of the faulty motor and the faulty motor Similarly, when the vehicle is turning, there will be oversteer or understeer, so it is necessary to control the motor on the diagonal side of the faulty motor to counteract the oversteer or make up for the understeer and maintain the stability of the vehicle.

Description

technical field [0001] The invention belongs to the technical field of vehicle control, and in particular relates to a control method and system for distributed drive vehicle torque. Background technique [0002] This section provides background information related to the present disclosure only and is not necessarily prior art. [0003] Distributed in-wheel motor-driven vehicles can precisely control each wheel individually. On the one hand, it can improve the control effect of the vehicle in terms of power performance, passability, driving anti-skid, vehicle stability, and vehicle efficiency optimization; on the other hand, the rest of the vehicle system The occurrence of failure will directly affect the driving state of each wheel and the driving stability of the vehicle. [0004] In the prior art, when a single driving motor fails, the same processing method is used for the non-failure driving motor on the opposite side of the faulty motor, but this processing method ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L15/38B60W30/02B60W40/10
CPCB60L15/38B60L2240/24B60L2240/423B60W30/02B60W40/10B60W2510/20B60W2710/083
Inventor 张佳骥连凤霞袁清赵国强
Owner WEICHAI POWER CO LTD
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