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. 29, 2003
Filed:
Feb. 28, 2001
Hiroto Morizane, Hitachi, JP;
Hiroshi Takenaga, Naka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
It is an object of the invention to provide a more practical ACC system. During a travel of a vehicle, an image processor successively extracts geometric feature values of image patterns of a leading vehicle from image data successively outputted from a camera device mounted at the front of the vehicle. When a travel start detector detects a travel of the vehicle, a reference parameter value setting process section of a microcomputer sets a geometric feature value of an image pattern of the leading vehicle extracted at appropriate timing as a reference parameter value. Thereafter, each time a geometric feature value of the image pattern of the leading vehicle is extracted, a target driving force calculation process section calculates a target driving force Ttar for reducing any difference between the geometric feature value and the value set as the reference parameter value. A vehicle controller supplies to controllers a control command in accordance with the target driving force.