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:
Jan. 21, 2003
Filed:
Oct. 03, 2000
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A hydraulic control system for a transmission including: a first transmission mechanism for transmitting a torque between rotary members and a transmission member by clamping the transmission member between the rotary members with a clamping pressure based on an oil pressure; and a second transmission mechanism for changing the transmission state of the torque by applying/releasing frictional engagement elements with an oil pressure, comprises: an oil pressure source; a first pressure regulator mechanism for regulating an oil pressure outputted from the oil pressure source, to a first oil pressure for establishing the clamping pressure for the transmission member by the rotary members; and a second pressure regulator mechanism for regulating the first oil pressure, as regulated and outputted by the first pressure regulator mechanism, to a second oil pressure for applying the frictional engagement elements.