VEHICLE CONTROL DEVICE - HITACHI AUTOMOTIVE SYSTEMS LTD

Title:

VEHICLE CONTROL DEVICE

Document Type and Number:

WIPO Patent Application WO/2014/080696

Kind Code:

A1

Abstract:

Provided is a vehicle control device that improves regeneration power while ensuring stable vehicle behavior, and realizes energy saving, wherein a slip ratio in which front and rear wheels are averaged, and a braking force in which the front and rear wheels are averaged, can be calculated. The vehicle control device is provided with the following: friction braking devices placed on each wheel; a motor that acts as a regenerative braking mechanism and is placed on the rear wheels; a vehicle slip stiffness calculation unit; a front and rear braking force ratio calculation unit; a vehicle slip stiffness correction unit; and a regenerative braking arithmetic unit. The regenerative braking arithmetic unit operates the friction braking device and the motor so as to make the vehicle slip stiffness reach a vehicle slip stiffness threshold value. Also, the vehicle slip stiffness correction unit corrects the vehicle slip stiffness threshold value in accordance with the ratio of the front wheel braking force and the rear wheel braking force.

Inventors:

AKIYAMA YUKI (JP)
OOSAWA TOSHIYA (JP)
YOKOYAMA ATSUSHI (JP)
YAMAKADO MAKOTO (JP)

Application Number:

PCT/JP2013/076691

Publication Date:

May 30, 2014

Filing Date:

October 01, 2013

Export Citation:

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Assignee:

HITACHI AUTOMOTIVE SYSTEMS LTD (JP)

International Classes:

B60L7/14; B60L7/24; B60T8/17; B60T8/172

Foreign References:

JP2006034012A	2006-02-02
JP2001018780A	2001-01-23
JP2010095098A	2010-04-30
JP2003291790A	2003-10-15
JPH0880832A	1996-03-26
JP2006304599A	2006-11-02
JP4920054B2	2012-04-18

Other References: