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:
Nov. 17, 2020
Filed:
Mar. 09, 2016
Jatco Ltd, Fuji-shi, Shizuoka, JP;
Yutaka Shimizu, Atsugi, JP;
Shusaku Katakura, Fujisawa, JP;
Yusuke Ota, Ebina, JP;
Tomoyuki Koike, Kanagawa, JP;
Yukiyoshi Inuta, Kanagawa, JP;
Youko Yoshioka, Kanagawa, JP;
JATCO LTD, Fuji, JP;
Abstract
An oil pressure control device has a mechanical oil pump (O/P) driven by a motor/generator (MG), an electric oil pump (M/O/P) driven by a sub motor (S/M) and a line pressure regulating valve (). In a case where a state is changed from a state in which the motor/generator (MG) is stopped and the electric oil pump (M/O/P) is driven to a state in which the motor/generator (MG) is started and the electric oil pump (M/O/P) is stopped, when a total flow amount of a working fluid discharge flow amount of the mechanical oil pump (O/P) and a working fluid discharge flow amount of the electric oil pump (M/O/P) is equal to or greater than a pressure regulation limit flow amount of the pressure regulating valve (), the working fluid discharge flow amount of the electric oil pump (M/O/P) is decreased.