公开(公告)号：US20150285369A1

公开(公告)日：2015-10-08

申请号：US14676444

申请日：2015-04-01

Applicant: GM Global Technology Operations LLC

Inventor： Christopher G. Benson ,  Todd R. Berger ,  Mark David Kieliszewski ,  Philip C. Lundberg

IPC: F16H57/04 ,  F16K31/00

CPC classification number: F16H57/0447 ,  F16H57/0409 ,  F16H57/045 ,  F16K31/002 ,  F16K31/025

Abstract: An active thermal hydraulic control system for a transmission is provided. The active thermal hydraulic control system improves fuel economy by storing transmission fluid in areas away from rotating components during hot operation. However, during other conditions the transmission fluid is kept in the sump. The active thermal hydraulic control system includes an active thermal valve. The active thermal valve is an electro-mechanical device which converts electrical energy into thermal energy which melts a wax pellet which in turn moves a plunger. Movement of the plunger controls the opening and closing of a valve that communicates between the sump and the side or front cover of the transmission. The system improves fuel economy by as much as 0.5% by storing excess hydraulic fluid away from rotating components.

Abstract translation: 提供了一种用于变速器的主动热液压控制系统。 主动热液压控制系统通过在热运行期间将变速箱油储存在远离旋转部件的区域内来提高燃油经济性。 然而，在其它条件下，传输流体保持在贮槽中。 主动热液压控制系统包括主动热阀。 主动热阀是将电能转换成热能的机电装置，其将熔融蜡颗粒，蜡颗粒又移动柱塞。 柱塞的运动控制了在油底壳和变速箱的侧盖或前盖之间连通的阀的打开和关闭。 该系统通过将多余的液压油远离旋转部件而将燃油经济性提高多达0.5％。