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:
May. 05, 1992
Filed:
Apr. 26, 1991
Neil Jones, Palm City, FL (US);
TRW Inc., Lyndhurst, OH (US);
Abstract
A suspension control system for a vehicle having a sprung mass and an unsprung mass comprises a hydraulic actuator connected between the sprung mass and the unsprung mass, and a hydraulic circuit communicating the actuator with a pump and a reservoir. The hydraulic circuit includes an on-off valve assembly which controls the actuator. The system further comprises sensors for sensing inputs to the vehicle, and a controller for providing a demand signal in response to the sensed inputs. The demand signal indicates a desired motion or resistance to motion of the piston in the actuator to achieve a desired motion or resistance to motion of the sprung mass relative to the unsprung mass. A pulse width modulating circuit provides a PWM control signal for operating the on-off valve assembly in response to the demand signal. The PWM control signal has a duty cycle which is a function of the demand signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile