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:
Feb. 05, 1991
Filed:
Oct. 21, 1988
Mitsuru Matsui, Gumma, JP;
Mitsuba Electric Manufacturing Co., Ltd., Gumma, JP;
Abstract
A method for computing a current vehicle speed value from a detected vehicle speed value derived from a pulse signal, said method provided data which can be used in a control process such as a cruise control of a vehicle, in which the current vehicle speed value is predicted from a previously computed vehicle speed value after an abnormal state of the current detected vehicle speed value is detected; and a cancel signal is produced for aborting the control process when the abnormal state has persisted for more than a certain time period. Thus, the derivation of an abnormal computed vehicle speed value is prevented when a temporary abnormal condition of the detected vehicle speed value has occurred, and a cancel signal, which may be used for aborting the operation of the control process, is produced when the abnormal condition of the detected vehicle speed has persisted for more than a certain time period, whereby the control system can respond to the abnormal conditions of the detected vehicle speed value in optimal fashion, and convenience and safety are both maximized.