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. 08, 1986
Filed:
Jan. 26, 1984
Toshihiro Matsuoka, Hiroshima, JP;
Shizuo Sumida, Hiroshima, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
A control system for an automobile automatic power transmission provided with a hydraulic torque converter having a lock-up mechanism for directly connecting the input and output shafts of the torque converter. The control system uses a lock-up release data line and a lock-up engage data line which is positioned at the higher-engine speed side with respect to the lock-up release data line for controlling engagement of the lock-up mechanism. The system further provides a modified lock-up engage data line, which is between the lock-up engage and release lines, for use when the engine throttle valve is opened again after it has been completely closed, so that the lock-up mechanism is engaged as soon as the throttle valve is opened beyond the modified lock-up engage data line.