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:
Jul. 01, 1997
Filed:
Feb. 03, 1995
Applicant:
Inventor:
Darryl C Weber, Ann Arbor, MI (US);
Assignee:
Kelsey-Hayes Company, Livonia, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60K / ;
U.S. Cl.
CPC ...
364426018 ;
Abstract
An improved method of estimating a vehicle speed reference value (VREF) at a wheel so as to prevent false slip detection and premature ABS activation in a motor vehicle equipped with an Anti-Locking Braking System. A maximum possible rate of change of velocity (ACCEL limit) for the vehicle is determined over a predetermined range of corresponding vehicle speeds. Wheel speed and estimated reference speed at the wheel (VREF) are determined along with the rate of change of the wheel speed (WHEEL ACCEL). The WHEEL ACCEL is compared to the corresponding ACCEL limit to limit the estimated reference speed to the corresponding ACCEL limit.