Invention Grant
US08888639B2 Method for providing a controlled neutral in lieu of a conventional neutral in an electro-mechanical transmission
有权
用于在机电传动装置中提供用于代替传统中性点的受控空档的方法
- Patent Title: Method for providing a controlled neutral in lieu of a conventional neutral in an electro-mechanical transmission
- Patent Title (中): 用于在机电传动装置中提供用于代替传统中性点的受控空档的方法
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Application No.: US13679460Application Date: 2012-11-16
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Publication No.: US08888639B2Publication Date: 2014-11-18
- Inventor: Syed Naqi , Lawrence A. Kaminsky , Jy-Jen F. Sah , Shaun C. Bowman , Christopher A. Laurent , George Robison , Silva Hiti , Jonathan M. Bolenbaugh , Ali K. Naqvi , Sasa Lucic
- 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: F16H3/72
- IPC: F16H3/72 ; B60W10/06 ; B60W10/08 ; F16H37/06
Abstract:
A powertrain system includes an internal combustion engine, a first electric machine and an electro-mechanical transmission operative to transmit torque to a driveline. A method for controlling the powertrain system in the presence of a controlled neutral operation of the electro-mechanical transmission being selected includes monitoring vehicle speed, and only when the monitored vehicle speed is indicative of a low-speed zone restricting a transition from a current engine operating state.
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