- Patent Title: Method of controlling a transmission during high G-force maneuvers
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Application No.: US14974740Application Date: 2015-12-18
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Publication No.: US10066738B2Publication Date: 2018-09-04
- Inventor: Russell K. Steele , Daniel J. Davis , Peter Kung Chiang
- Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Agency: Quinn IP Law
- Main IPC: F16H57/04
- 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.
Public/Granted literature
- US20170175881A1 METHOD OF CONTROLLING A TRANSMISSION DURING HIGH G-FORCE MANEUVERS Public/Granted day:2017-06-22
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