Invention Grant
- Patent Title: Hydraulic control system with ETRS and multiplexed clutch control for a transmission
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Application No.: US14517074Application Date: 2014-10-17
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Publication No.: US09599214B2Publication Date: 2017-03-21
- Inventor: Philip C. Lundberg , Christopher G. Benson
- 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
- Main IPC: F16H61/02
- IPC: F16H61/02 ; F16H61/66 ; F16H63/34 ; F16H63/48

Abstract:
An electronic transmission range selection hydraulic control system includes a source of pressurized hydraulic fluid, a first mode valve assembly in fluid communication downstream of the source of pressurized hydraulic fluid, a drive clutch actuator connected to a drive clutch and in fluid communication directly downstream of the first mode valve assembly, a reverse clutch actuator connected to a reverse clutch and in fluid communication directly downstream of the first mode valve assembly, a second mode valve assembly in fluid communication directly downstream of the first mode valve assembly, and a park servo connected to the park mechanism and in fluid communication directly downstream of the first mode valve assembly and the second mode valve assembly.
Public/Granted literature
- US20150129385A1 HYDRAULIC CONTROL SYSTEM WITH ETRS AND MULTIPLEXED CLUTCH CONTROL FOR A TRANSMISSION Public/Granted day:2015-05-14
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