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. 04, 1997
Filed:
Mar. 24, 1995
Nippondenso Co., Ltd., Kariya, JP;
Abstract
A measuring apparatus for measuring an actual distance between vehicles and comparing the measured distance with a reference distance. The reference distance (SL) is obtained on the basis of: a personal space (VR.multidot.TIMEK) being an uneasy distance peculiar to a driver and obtained in accordance with the own vehicle speed; a free running distance (VRR.multidot.TIMEN) corresponding to a response time of a driver's braking operation and a relative speed between two vehicles; a braking distance (VRR.sup.2 /(2.multidot.GR)) corresponding to a depressing strength of a braking pedal in the driver's braking operation and the relative speed; and an acceleration change distance (.alpha.G.multidot.GA) corresponding to a relative acceleration between the two vehicles, using the following equation: