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:
Aug. 21, 2018
Filed:
Apr. 18, 2014
Yusuke Ogata, Miyoshi, JP;
Yoshihiro Mizuno, Nisshin, JP;
Yasuyuki Watanabe, Toyota, JP;
Masashi Hattori, Anjo, JP;
Junichi Tokunaga, Anjo, JP;
Toshiaki Hayashi, Anjo, JP;
Yusuke Ogata, Miyoshi, JP;
Yoshihiro Mizuno, Nisshin, JP;
Yasuyuki Watanabe, Toyota, JP;
Masashi Hattori, Anjo, JP;
Junichi Tokunaga, Anjo, JP;
Toshiaki Hayashi, Anjo, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Abstract
In a hydraulic control device of a belt-type continuously variable transmission that includes: a first hydraulic actuator that is provided in a primary pulley and reduces a width of a belt groove when hydraulic pressure is applied thereto; and a first control valve that regulates predetermined source pressure to be gear-change hydraulic pressure for setting or changing a gear change ratio and outputs the gear-change hydraulic pressure to the first hydraulic actuator, gear change equipment is included that regulates the source pressure to be the gear-change hydraulic pressure so as to regulate the hydraulic pressure of the first hydraulic actuator when the hydraulic pressure of the first hydraulic actuator is rapidly changed to change the width of the belt groove.