Driving force control method for whole wheel hub motor driving vehicle

Abstract

Disclosed is a driving force control method for a whole wheel hub motor driving a vehicle, and belongs to the field of vehicle driving force control. The driving force control method for the whole wheel hub motor driving the vehicle comprises the following steps that manipulation information of a driver and operation parameters of the vehicle are collected by a data acquisition and processing module, and pretreatment is carried out, the manipulation information of the driver and parameter information of the vehicle are obtained to be sent to a driving mode determination module, a driving wheeltrackslip observation module, and a driving wheel torque coordination allocation module; turning intention of the driver is determined and an target torque obtained by the driver driving pedals is analyzed; a driving cycle of the vehicle is determined according to operation information of the vehicle, according to the purpose of driving control under each working condition is security or dynamicproperty to determine driving force control targets, and driving force control methods such as limiting the target torque, adjusting diving force allocation of a front shaft and a rear shaft, and driving skid resistance are reasonably used. The driving force control method for the whole wheel hub motor driving the vehicle aims to overcome the problem that an existing wheel hub motor fails to achieve good coordination and control to lead to reduction of practicability, and the applicability of the existing vehicles driven by a wheel hub motor.

Description

technical field [0001] The invention belongs to the field of vehicle driving force control, and in particular relates to a driving force control method of a four-wheel independently driven vehicle driven by an in-wheel motor in a new energy electric drive vehicle. Background technique [0002] As people pay more and more attention to energy conservation and environmental protection, electric vehicles are gradually favored by the market. It is one of the important directions for the sustainable development of the vehicle industry to develop new electric vehicles that are more energy-saving, environmentally friendly and safe, to improve the advantages of new energy vehicles and to promote their better development. [0003] Compared with the internal combustion engine, the electric motor has the characteristics of quick response and high control precision, and the four-wheel independent drive electric vehicle (especially small passenger vehicle) based on the in-wheel motor can ...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is: in order to overcome the problem that the existing in-wheel motors cannot achieve good coordinated control, resulting in reduced practicability, a driving force control method for vehicles driven by all-in-wheel motors is proposed, which can effectively solve various normal problems. The compensation control and coordinated distribution of the driving force under different conditions can improve the driving stability of the vehicle when it is slipping at various speeds, and improve the stability and safety of the vehicle when turning through the driving force control. energy consumption

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