Torque distribution method, device and system

A technology of torque distribution and distribution coefficient, which can be used in control devices, transportation and packaging, electric vehicles, etc., and can solve problems such as slippage and increased control difficulty.

Pending Publication Date: 2021-12-10
恒大恒驰新能源汽车研究院(上海)有限公司
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Problems solved by technology

[0003] When the vehicle is driving on icy roads, muddy roads and other roads with low friction, a certain amount of slippage will occur. Even when a certain wheel is controlled, if the vehicle continues to be driven according to a fixed ratio of torque, the vehicle is in a slipping or controlled state. Continuous distribution of fixed torque by the tires will increase the difficulty of vehicle control. Therefore, it is urgent to provide a torque distribution scheme to reduce the difficulty of vehicle control and improve the safety of vehicle driving.

Method used

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  • Torque distribution method, device and system
  • Torque distribution method, device and system

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Embodiment Construction

[0099] The preferred embodiments of the present application will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present application, and are not intended to limit the present application.

[0100] figure 1 It is a flowchart of a torque distribution method in an embodiment of the present application, and the method can be implemented as the following steps S11-S13:

[0101] In step S11, when the vehicle is traveling on the target road surface, the preset parameters of the vehicle are obtained;

[0102] In step S12, it is determined whether the front wheels and rear wheels of the vehicle are slipping according to the preset parameters;

[0103] In step S13, when the front and / or rear wheels of the vehicle are slipping, the torque of the front and rear wheels is adjusted according to the slip ratio of the front and rear wheels of the vehicle, where...

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Abstract

The invention discloses a torque distribution method, a device and a system which are used for reducing the control difficulty of a vehicle and improving the driving safety of the vehicle. The method comprises the steps that when a vehicle runs on a target road surface, preset parameters of the vehicle are acquired; determining whether front wheels and rear wheels of the vehicle slip or not according to the preset parameters; when the front wheels and/or the rear wheels of the vehicle slip, the torques of the front wheels and the rear wheels are adjusted according to the slip rates of the front wheels and the rear wheels of the vehicle, and the current slip rates of the front wheels and the rear wheels are in negative correlation with the distributed torques. By adopting the scheme provided by the invention, the control difficulty of the vehicle is reduced, and the driving safety of the vehicle is improved.

Description

technical field [0001] The present application relates to the technical field of vehicle control, in particular to a torque distribution method, device and system. Background technique [0002] Four-wheel drive means that the vehicle maintains four-wheel drive during the entire driving process, and the output torque of the engine is distributed to the front and rear wheels in a fixed ratio. Compared with two-wheel drive, this driving mode can have better off-road and Handling performance. [0003] When the vehicle is driving on icy roads, muddy roads and other roads with low friction, a certain amount of slippage will occur. Even when a certain wheel is controlled, if the vehicle continues to be driven according to a fixed ratio of torque, the vehicle is in a slipping or controlled state. Continuous distribution of fixed torque by the tires will increase the difficulty of vehicle control. Therefore, it is urgent to provide a torque distribution scheme to reduce the difficul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L15/20B60W30/18
CPCB60L15/20B60W30/18172B60L2240/463Y02T10/72
Inventor 官文彬文增友牛珍吉姜博张进
Owner 恒大恒驰新能源汽车研究院(上海)有限公司
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