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. 07, 1978
Filed:
Aug. 12, 1976
Applicant:
Inventors:
Sigeru Kuriyama, Ibaraki, JP;
Minoru Kaminaga, Ibaraki, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60K / ; B60T / ;
U.S. Cl.
CPC ...
1801 / ; 180 / ; 303106 ;
Abstract
A velocity at the time when the accelerator of a vehicle is released is stored under a certain condition in advance, and the stored vehicle velocity and an actual vehicle velocity are compared. When the actual vehicle velocity becomes greater than the stored vehicle velocity by a predetermined value, the downward inclination of a running road surface is regarded as exceeding a predetermined value, and safety means such as a brake is driven. As compared with a case of employing an inclination angle sensor such as a mercury switch, the device operates accurately without being influenced by a change in the vibration or acceleration of the vehicle.