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. 20, 2001
Filed:
Jan. 06, 1999
Yoshihiro Mitsumoto, Kanagawa-ken, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A pitch angle calculating device includes height detecting units arranged in front and rear positions of the vehicle for detecting front and rear vehicle heights and a calculating section for calculating a pitch angle of the vehicle by the vehicle heights and a distance between the front position and the rear position. In the device, the pitch angle is divided into a plurality of pitch angle ranges &thgr;0˜&thgr;1, &thgr;1˜&thgr;2, &thgr;3˜&thgr;4, . . . , the calculating section integrates periods residing in each pitch angle range and subsequently determines the pitch angle of the vehicle on a basis of the integrated periods referred as “residence time”. With the calculation, it is possible to avoid instantaneous changes in pitch angle due to the vehicle's getting over irregularities and obstacles on a road.