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:
Sep. 23, 1997
Filed:
Jan. 31, 1996
Noboru Kondo, Saitama, JP;
Kenzo Nishida, Saitama, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
In order to prevent an increase in engine noise during a kick-down, a timer is set concurrently with a downshifting. When the throttle opening degree becomes equal to or larger than a threshold value YTHNST by a rapid depression of an accelerator pedal before lapse of a predetermined time, a lock-up clutch of a torque converter is brought into an engaged state, thereby preventing a revolution speed of an engine from rising rapidly in order to alleviate the engine noise. After the throttle opening degree TH becomes smaller than the threshold value YTHNST and the engagement of the lock-up clutch is released, the lock-up clutch is not brought into the engaged state even if the throttle opening degree TH again becomes equal to or larger than the threshold value YTHNST. Also, when the throttle opening degree TH becomes equal to or larger than the threshold value YTHNST after lapse of the predetermined time, the lock-up clutch is not brought into the engaged state.