The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 25, 2001

Filed:

Sep. 01, 2000
Applicant:
Inventors:

Tomoyuki Shinmura, Wako, JP;

Hiromi Inagaki, Wako, JP;

Masakatsu Hori, Wako, JP;

Tatsuhiro Tomari, Wako, JP;

Shinji Okuma, Wako, JP;

Akihiro Iwazaki, Wako, JP;

Takashi Kuribayashi, Wako, JP;

Kazuhiro Wada, Wako, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/520 ;
U.S. Cl.
CPC ...
G06F 1/520 ;
Abstract

A co-operative control system for a vehicle having a force distribution device for distributing at least one of a driving force and a braking force between spaced apart wheels, the co-operative system having: a first control mechanism for controlling the operation of the force distribution device, an electric power steering device having a motor for applying a steering assist torque to a steering system of the vehicle, and a second control mechanism for calculating a motor control signal for driving the motor based on at least a steering torque detected by a steering torque sensor, and for inhibiting drive of the motor based on at least an actual motor detected by a current sensor and the steering torque. The first control mechanism calculates a correction signal for correcting the motor control signal based on the amount of control of the force distribution device and an offset current for correcting the actual motor current signal; and the second control mechanism drives the motor based on a corrected motor control signal obtained by correcting the motor control signal with the correction signal and inhibits the drive of the motor based on a value obtained by correcting the actual motor current signal with the offset current and the steering torque signal, the offset current being set smaller than the correction signal.


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