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:
Apr. 27, 1993
Filed:
Aug. 26, 1991
Dean Karnopp, Davis, CA (US);
Robert Bosch GmbH, Gerlingen-Schillerhohe, DE;
Abstract
The present invention is a motor-driven servo steering system for a motor vehicle having an actuator for superimposing steering intervention on the steering wheel power applied by the driver. Power provided by a power supply, for example an electric motor, is superimposed on the steering wheel power applied by the driver and thereby aids and boosts the steering wheel power. In addition to or instead of the boosting effect, the steering systems of the vehicle can be acted upon through steering signals that increase the road safety and/or the travel comfort. Because the system is responsive to steering wheel velocity, the system has a high inherent safety, where in case of power supply failure the driver has a direct mechanical access to the steering systems, without increasing the steering wheel torque required to be applied by the driver.