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:
Apr. 06, 1993
Filed:
Sep. 12, 1991
Masato Yoshino, Itami, JP;
Yoshio Katayama, Itami, JP;
Sumitomo Electric Industries, Ltd, Osaka, JP;
Abstract
A brake switch abnormality detection device is provided for use in a motorcycle. The device includes brake switches for producing brake signals indicative of the respective operations of the brake switches, an estimated vehicle speed calculation, unit, a brake signal detector for detecting the presence or absence of the brake signals, a comparator for comparing the estimated vehicle speed with a first predetermined speed and a second predetermined speed which is smaller than the first predetermined speed, and an abnormality detector. The abnormality detector detects abnormalities and produces an abnormality signal when the estimated vehicle speed is reduced from the first predetermined speed to the second predetermined speed without any detection of the brake signal.