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. 20, 1998
Filed:
Sep. 02, 1997
Michael Ulm, Alteglofsheim, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A control loop, preferably for movement stability regulation in a motor vehicle, has a yaw rate sensor supplying an electrical sensor signal and a temperature sensor supplying an electrical sensor signal for compensation of temperature dependency of the sensor signal of the yaw rate sensor. A circuit configuration for evaluation of the sensor signal of the yaw rate sensor includes a first evaluation device for calculating an instantaneous yaw rate from the electrical sensor signals of the yaw rate sensor and of the temperature sensor, and a second evaluation device for adaptively determining sensor-specific characteristic parameters of the yaw rate sensor as a function of temperature. A reference yaw rate .PSI..sub.ref being calculated from measured wheel rotation speed values v.sub.1 and v.sub.r in accordance with the following formula: ##EQU1## is taken into account, where l.sub.trackw designates a distance between two centers of contact of wheels on a non-driven axle with the ground.