Invention Grant
US07934590B2 Park-by-wire subsystem for a control system for an electrically variable hybrid transmission 有权
用于电可变混合变速器的控制系统的逐线子系统

Park-by-wire subsystem for a control system for an electrically variable hybrid transmission
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.
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