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:
May. 14, 2013
Filed:
Feb. 13, 2012
Shufu LI, Hangzhou, CN;
Jian Yang, Hangzhou, CN;
Tong Zhang, Jinshan District, CN;
Wei Yu, Jinshan District, CN;
Zhitao MA, Jinshan District, CN;
Haisheng Yu, Jinshan District, CN;
Yude Xiang, Jinshan District, CN;
Shufu Li, Hangzhou, CN;
Jian Yang, Hangzhou, CN;
Tong Zhang, Jinshan District, CN;
Wei Yu, Jinshan District, CN;
Zhitao Ma, Jinshan District, CN;
Haisheng Yu, Jinshan District, CN;
Yude Xiang, Jinshan District, CN;
Shanghai Maple Guorun Automobile Co., Shanghai, CN;
Zhejiang Geely Holding Group, Hang zhou, CN;
Abstract
A hydraulic control device for a hybrid transmission is designed such that the cooling and lubrication oil line of the system are in oil communication even before the main oil line pressure reaches the set pressure of the overflow valve, so as to lubricate the transmission as soon as possible. The hybrid transmission design further provides an overpressure protection for the cooler. The hybrid transmission further uses a proportional pressure reducing valve to control the lock-up clutch, thus making for the improvement of its braking performance.