4輪駆動車のパワーステアリング装置

Title:

4輪駆動車のパワーステアリング装置

Document Type and Number:

Japanese Patent JP4684658

Kind Code:

B2

Abstract:

The present invention offers a power steering device (20) for a four-wheel drive, which includes: a first self-aligning torque estimation unit (25e) for estimating a self-aligning torque generated in a current vehicle behavior as a first self-aligning torque; a second self-aligning torque estimation unit (25e) for estimating a self-aligning torque that is to influence a subsequent vehicle behavior as a second self-aligning torque; a self-aligning torque change amount calculation unit (25f) for calculating a difference of the second self aligning torque from the first self-aligning torque as a self-aligning torque change amount; and an assisting force correction unit (25g) for determining and outputting a corrected value of an assisting force to be generated for a steering operation based on the self-aligning torque change amount. Therefore, even when the self-aligning torque changes as the distribution of the front and rear driving power is variably controlled, a corresponding assisting force is generated, maintaining a natural steering feeling without causing an unpleasant sensation to the driver.

Inventors:

Takeshi Yoneda
Yamazaki Yoshinobu
Kanazawa Kazuo
Makoto Shibuya
Hiroyuki Kiryu

Application Number:

JP2005004550A

Publication Date:

May 18, 2011

Filing Date:

January 11, 2005

Export Citation:

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