公开(公告)号：US10066738B2

公开(公告)日：2018-09-04

申请号：US14974740

申请日：2015-12-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Russell K. Steele ,  Daniel J. Davis ,  Peter Kung Chiang

IPC: F16H57/04 ,  F16H61/00 ,  F04B49/22 ,  F16H59/44 ,  F16H59/48 ,  F04B49/06

Abstract: A method of controlling a transmission having a gearbox and a pump operable to circulate a fluid through the gearbox, includes sensing an acceleration of the vehicle, and adjusting an operating state of the pump. The operating state of the pump is adjusted to change the operating state of the pump from an initial operating state, to an adjusted operating state, when the acceleration of the vehicle is greater than an acceleration threshold. When the acceleration of the vehicle decreases from being greater than the acceleration threshold to being below the acceleration threshold, the operating state of the pump is returned to the initial operating state. The operating state of the pump may include a speed of the pump, a control signal representing a fluid flow rate for the current speed of the pump, or a fluid flow circuit for supplying the fluid to the pump.

公开(公告)号：US20170175881A1

公开(公告)日：2017-06-22

申请号：US14974740

申请日：2015-12-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Russell K. Steele ,  Daniel J. Davis ,  Peter Kung Chiang

IPC: F16H61/00 ,  F16H59/48 ,  F16H59/44 ,  F04B49/22 ,  F16H57/04

CPC classification number: F16H61/0021 ,  F04B49/06 ,  F04B49/225 ,  F16H57/0443 ,  F16H57/0446 ,  F16H59/44 ,  F16H59/48 ,  F16H2061/0037

Abstract: A method of controlling a transmission having a gearbox and a pump operable to circulate a fluid through the gearbox, includes sensing an acceleration of the vehicle, and adjusting an operating state of the pump. The operating state of the pump is adjusted to change the operating state of the pump from an initial operating state, to an adjusted operating state, when the acceleration of the vehicle is greater than an acceleration threshold. When the acceleration of the vehicle decreases from being greater than the acceleration threshold to being below the acceleration threshold, the operating state of the pump is returned to the initial operating state. The operating state of the pump may include a speed of the pump, a control signal representing a fluid flow rate for the current speed of the pump, or a fluid flow circuit for supplying the fluid to the pump.