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Control method and system for distributed driving vehicle torque

A control method and distributed technology, applied in electric vehicles, control drives, control devices, etc., can solve problems such as vehicle loss of stability, achieve the effects of maintaining stability, reducing safety risks, and improving safety

Active Publication Date: 2020-05-08
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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  • Control method and system for distributed driving vehicle torque
  • Control method and system for distributed driving vehicle torque
  • Control method and system for distributed driving vehicle torque

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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. The invention particularly relates to a control method and system for distributed driving vehicle torque. The control method for the distributed driving vehicle torque comprises the steps: obtaining a steering wheel angle of a vehicle, determining the driving state of the vehicle according to the steering wheel angle, controlling thecoaxial opposite-side motor of a fault motor to have the same torque as the fault motor according to the driving state being a straight driving state, and controlling the diagonal-side motor of the fault motor to perform fault degradation according to the driving state being a steering driving state. According to the control method for distributed driving vehicle torque, for different driving states of a vehicle, processing modes of motor faults are different. When the vehicle runs linearly, the torque of the coaxial opposite side motor of the fault motor is directly controlled to be the sameas that of the fault motor, and when the vehicle runs in a steering mode, the situation of excessive steering or insufficient steering occurs, so that the motor on the opposite angle side of the fault motor need to be controlled to counteract excessive steering or make up insufficient steering, and the stability of the vehicle is kept.

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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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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