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.
Patent No.:
Date of Patent:
Oct. 08, 1991
Filed:
May. 03, 1990
Yasuhiro Shiraishi, Atsugi City, JP;
Yasuki Ishikawa, Sagamihara, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
An auxiliary steering control apparatus for use with a motor vehicle having a vehicle speed sensor sensitive to a vehicle speed. A control unit is coupled to the vehicle speed sensor for sampling the sensed vehicle speed at time intervals and calculating a vehicle speed change between a new value of the sensed vehicle speed and the last value of the sensed vehicle speed. The control unit calculates a control vehicle speed value which is equal to the new vehicle speed value when the calculated vehicle speed change is less than a limit value and is equal to the last vehicle speed value plus the limit value when the calculated vehicle speed change exceeds the limit value. The control unit normally performs an auxiliary steering operation to provide an oversteer and understeer characteristic and performs an auxiliary steering operation to provide an understeer characteristic in the presence of a failure signal produced when a difference between the new vehicle speed value and the control vehicle speed value exceeds a predetermined value.