Dynamic driving force distribution method, device and system, storage medium and vehicle

A distribution method and technology of driving force, applied in the direction of control driving, vehicle components, electric vehicles, etc., can solve the problems of high probability of wheel slipping and instability, reduce the probability of wheel slipping and vehicle instability, and improve sensitivity The effect of reducing the drive torque on the inner side

Pending Publication Date: 2022-07-22
GREAT WALL MOTOR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In related technologies, most vehicles will perform traction control when the wheels slip, and perform stability control when the vehicle has understeer or oversteer, but the probability of wheel slip and instability is still high

Method used

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  • Dynamic driving force distribution method, device and system, storage medium and vehicle
  • Dynamic driving force distribution method, device and system, storage medium and vehicle
  • Dynamic driving force distribution method, device and system, storage medium and vehicle

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Embodiment Construction

[0067] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0068] In the related art, most vehicles only perform traction control when the wheels slip, and perform stability control when the vehicle is understeered or oversteered, and there is no good way to reduce the probability of wheel slippage and instability, such as figure 1 As shown in the diagram of the vehicle accelerating in a straight line, when the vehicle accelerates in a straight line, due to the transfer of the axle load, the vertical...

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Abstract

The invention provides a dynamic driving force distribution method, device and system, a storage medium and a vehicle. The dynamic driving force distribution method comprises the steps that the longitudinal acceleration and the transverse acceleration of a vehicle are obtained, the load proportion of wheel ends is determined according to the longitudinal acceleration, the transverse acceleration and vehicle body parameter information of the vehicle, and the driving torque of each wheel end is determined according to the total driving force of the vehicle and the load proportion of the wheel ends. And executing motor driving force distribution according to the driving torque of each wheel end. The change of the vehicle load is determined through the change of the longitudinal acceleration and the transverse acceleration of the vehicle, then the driving torque of the four wheels is adjusted, the occurrence probability of wheel slipping and vehicle instability is reduced, and the safety and the stability of the vehicle linear acceleration process and the vehicle acceleration steering process are improved.

Description

technical field [0001] The present invention relates to the technical field of vehicle drive control, and in particular, to a dynamic drive force distribution method, device, system, storage medium and vehicle. Background technique [0002] With the development of technology and product innovation in the automotive industry, in-wheel motor products have been gradually applied to the market. Based on in-wheel motor products, the vehicle can realize any distribution of the torque of the four-wheel drive without being noticed by the driver. It lays the foundation for the vehicle to provide differentiated wheel-end torque during acceleration and steering. [0003] In the related art, most vehicles perform traction control when the wheels slip, and perform stability control when the vehicle is understeered or oversteered, but the probability of wheel slippage and instability is still high. SUMMARY OF THE INVENTION [0004] Embodiments of the present invention provide a dynamic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L15/20
CPCB60L15/20B60L2240/16B60L2240/18B60L2240/10
Inventor 崔晋郜增达张慧君
Owner GREAT WALL MOTOR CO LTD
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