Invention Grant
- Patent Title: Park-by-wire subsystem for a control system for an electrically variable hybrid transmission
- Patent Title (中): 用于电可变混合变速器的控制系统的逐线子系统
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Application No.: US11759010Application Date: 2007-06-06
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Publication No.: US07934590B2Publication Date: 2011-05-03
- Inventor: Michael L. Duhaime , Mark A. Vernacchia
- Applicant: Michael L. Duhaime , Mark A. Vernacchia
- 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 Law Group, PLLC
- Main IPC: B60W10/18
- IPC: B60W10/18

Abstract:
A park-by-wire subsystem which is internally mounted within an electrically variable hybrid transmission is provided. The park-by-wire subsystem provides a means of selectively placing the electrically variable hybrid transmission in a park condition by the selective actuation of an actuator operatively connected to a lever. The lever enables selective engagement of a park pawl mechanism and incorporates multiple Hall effect switches to monitor the position of the lever. The subsystem is monitored by various switches and sensors to provide control and diagnostic feedback and is activated by a command source controlled by a first control unit. A second control unit is incorporated into the design for required control, monitoring, and diagnostic redundancies.
Public/Granted literature
- US20070284213A1 PARK-BY-WIRE SUBSYSTEM FOR A CONTROL SYSTEM FOR AN ELECTRICALLY VARIABLE HYBRID TRANSMISSION Public/Granted day:2007-12-13
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