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:
Mar. 02, 2004
Filed:
Feb. 20, 2002
Rainer Klusemann, Frankfurt am Main, DE;
Continental Teves AG & Co., oHG, Frankfurt, DE;
Abstract
The invention relates to a method for determining that a motor vehicle is driving uphill or downhill, and for this purpose the vehicle acceleration a is determined by means of differentiation from V and compared with a longitudinal vehicle acceleration a determined by a sensor. The method checks whether there is a deviation from normal driving by monitoring whether |a −a | is greater than a threshold value SL. In addition a deviation time t is determined, within which the deviation from normal driving prevails without interruption; the deviation time t is monitored to determine whether a minimum time value T is exceeded in order to conclude that the vehicle is climbing or descending a slope when t is greater than T . The invention also relates to a device that uses a digital logic with a counter to measure the times t, t , t and t , with one digit of the logic corresponding to a defined time unit.