Turning control device for vehicle

Abstract

The disclosed turning control device for a vehicle is provided with: a first braking force control amount calculation unit which determines a first braking force control amount on the basis of detection signals from a steering amount detection unit and a detection unit; a second braking force control amount calculation unit, which calculates a yaw rate deviation, which is the deviation between a standard yaw rate and an actual yaw rate as detected by a yaw rate detection unit, and determines a second braking force control amount so as to cancel out the yaw rate deviation; and a braking control unit which controls the braking force on the basis of a total braking force control amount, acquired by either adding or multiplying the first braking force control amount and the second braking force control amount.

Description

technical field [0001] The present invention relates to a turning control device for a vehicle that controls the turning of the vehicle using braking. [0002] this application claims priority based on Japanese Patent Application No. 2010-047832 for which it applied to Japan on March 4, 2010, The content is used here. Background technique [0003] As an example of such a turning control device, there is known a system that stabilizes the behavior of the vehicle by performing braking control on specific wheels in a direction in which the deviation between the lateral G standard yaw rate and the actual yaw rate of the vehicle approaches zero. A technique in which the lateral G norm yaw rate is calculated based on the acceleration in the left and right directions of the vehicle (hereinafter referred to as lateral acceleration) and the vehicle speed. [0004] In addition, as an example of another turning control device, a technique is known in which, during braking, the right a...

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Problems solved by technology

[0010] However, in the turning control device described in Patent Document 1, since the yaw moment is always assisted during braking and turning, the yaw moment becomes too large, and it is considered that the stability sometimes deteriorates, which is not correct. Reality

In addition, the responsiveness in normal cornering cannot be improved

[0011] On the other hand, in the turning control device described in the above-mentioned Patent Document 2, the first yaw moment is greatly reflected when turning sharply (when the steering angular velocity or the steering angular acceleration is large). but not effective for normal turns

In addition, the responsiveness during normal turning cannot be improved

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