06212453 is referenced by 49 patents and cites 8 patents.

A system for controlling steering of a vehicle, including an electric motor used for power-steering torque assist control. In the system, the lane-keeping-steering assist torque TLK for causing the vehicle to run along the center of a road existing ahead of the vehicle is calculated, while the power-steering assist torque TPS for assisting the vehicle driver's steering is calculated. Then, ratios RTO

1

and RTO

2

are calculated based on the detected steering torque. The assist torques TLK, TPS are corrected by multiplication with the ratios RTO

1,

RTO

2

respectively and are added together to determine a final assist torque TA, and based on the final assist torques TA, a motor current to be supplied to the electric motor is determined, thereby enabling to effectively prevent the two kinds of control from interfering with each other so as not to adversely affect the vehicle driver's perception of vehicle steering response. Additional ratios are determined based on the detected steering torque change and the vehicle speed.

Title
Vehicle steering control system
Application Number
9/393963
Publication Number
6212453 (B1)
Application Date
September 10, 1999
Publication Date
April 3, 2001
Inventor
Shinnosuke Ishida
Wako
US
Hiroyuki Kawagoe
Wako
US
Agent
Arent Fox Kintner Plotkin & Kahn PLLC
US
Assignee
Honda Giken Kogyo Kabushiki Kaisha
US
IPC
B62D 5/04
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