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. 05, 1990
Filed:
Mar. 21, 1988
Shoji Kawata, Okazaki, JP;
Osamu Miyake, Nishikamo, JP;
Nobuyasu Suzumura, Toyota, JP;
Motohide Takeuchi, Tokoname, JP;
Aisin Seiki Kabushiki Kaisha, Aichi, JP;
Abstract
A constant-speed running controller for maintaining the running speed of a vehicle at a fixed level by regulating the degree of opening of the throttle valve of the vehicle. The constant-speed running controller comprises speed detectors for detecting the running speed of the vehicle, a shift position detecting switch for detecting the shift position of the shift lever, a mode selecting switch for switching the running mode of the vehicle between an automatic speed change control mode and an automatic speed change constant-speed running control mode, a throttle opening degree detector for detecting the degree of opening of the throttle valve, a brake switch for detecting the application of the brake system, a target running speed setting switch, a resume switch for restarting the previously established constant-speed running control mode, a constant-speed running mode selecting switch for selecting the constant-speed running control function, a microcomputer for processing data received from the foregoing switches and detectors and giving control signals to the functional devices for regulating the running speed of the vehicle. An effective target running speed for constant-speed running is determined on the basis of a temporary target running speed, an average running speed obtained by processing sample running speeds sampled in a predetermined time interval, and the difference between the temporary target running speed and the average running speed.