Left-right wheel drive force distribution control apparatus for a vehicle

摘要

A vehicle left-right wheel drive force distribution control apparatus is provided for improving the handling of a vehicle when a steering wheel of the vehicle is being returned toward a center position. The vehicle left-right wheel drive force distribution control apparatus executes a distributed output of a wheel drive force to left and right drive wheels in accordance with a control. The apparatus has a left-right drive force transient control amount computing section that computes a left-right drive force difference transient control amount based on a driver transient turn response. This control amount computed is used in the aforementioned control and is made smaller as the steering wheel is being turned away from a center position than as the steering wheel is being returned toward the center position.

主权项

1. A vehicle left-right wheel drive force distribution control apparatus comprising:
a controller programmed to execute a distributed output of a wheel drive force to left and right drive wheels in accordance with a front-rear wheel drive force distribution control, the controller including a left-right drive force difference transient control amount computing section that computes a left-right drive force difference transient control amount based on a driver requested transient turn response, the left-right drive force difference transient control amount computed by the left-right drive force difference transient control amount computing section being used in the front-rear wheel drive force distribution control such that the left-right drive force difference transient control amount is smaller as a steering wheel is being turned away from a center position than as the steering wheel is being returned toward the center position, and the left-right rear wheel drive force difference transient control amount being gradually increased as the steering wheel turning speed increases as the steering wheel starts being turned away from the center position, and gradually decreased as the steering wheel turning speed increases as the steering wheel starts returning toward the center position.