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:
Jun. 11, 2002
Filed:
May. 19, 2000
Akira Higashimata, Kanagawa, JP;
Takenori Hashizume, Kanagawa, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
In vehicular velocity controlling method and apparatus, an inter-vehicle distance from the vehicle to another vehicle which is running ahead of the vehicle is detected, a target vehicular velocity to make a detected value of the inter-vehicle distance substantially equal to a target inter-vehicle distance is calculated, a vehicular velocity of the vehicle is detected, a target vehicular driving force to make a detected value of the vehicular velocity substantially equal to the target vehicular velocity is detected, a gradient of a descending slope on which the vehicle is running is detected, a driving force exerted by a rotary driving force source and a gear position of a vehicular transmission are controlled and simultaneously a brake force exerted by a vehicular brake system if the target driving force is negative on the basis of the calculated target driving force is controlled, and a limitation on a shift of the gear position of the vehicular transmission even under an establishment of a gear position shift condition in accordance with the road surface gradient is placed.