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:
Nov. 26, 1996
Filed:
Mar. 27, 1995
Gene A Maguran, Jr, West Bloomfield, MI (US);
General Motors Corporation, Detroit, MI (US);
Abstract
A suspension system control method comprising the steps of: measuring an ambient temperature outside a vehicle; measuring a relative velocity of a suspension system damper; responsive to the relative velocity and the ambient temperature, estimating a damping fluid temperature of damping fluid within the actuator; comparing the estimated damping fluid temperature to a predetermined threshold; if the damping fluid temperature is not above the predetermined threshold, constraining an actuator command to a cold temperature maximum value, wherein the cold temperature maximum value is less than a corresponding normal non-cold temperature maximum value for the actuator command; and outputting the actuator command to the damper, wherein the occurrence of suspension noise and harshness during cold temperature operation of the vehicle is minimized.