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. 09, 1998
Filed:
Aug. 15, 1996
Takashi Aoki, Saitama-ken, JP;
Kaoru Kajikawa, Saitama-ken, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A hydraulic control apparatus for a continuously variable transmission includes an inhibit valve that blocks the supply of hydraulic pressure to a reverse-drive brake during forward movement, and an inhibit solenoid valve that relieves the hydraulic pressure in a fluid passage acting on a spool of the inhibit valve so as to move the spool to the closed side and also relieves the hydraulic pressure in another fluid passage acting on a high-pressure regulator valve to urge the same to the low-pressure side, thereby increasing the high fluid pressure. This arrangement is able to improve the transient response of the control apparatus without providing additional pressure control valves as done in the conventional apparatus. The control apparatus can be manufactured with reduced number of components and at a relatively low cost.