Invention Grant
US07789795B2 Method for controlling a vehicle powertrain having step ratio gearing and a continuously variable transmission to achieve optimum engine fuel economy
有权
用于控制具有步进比率齿轮传动装置的车辆动力传动系的方法和实现最佳发动机燃料经济性的无级变速器
- Patent Title: Method for controlling a vehicle powertrain having step ratio gearing and a continuously variable transmission to achieve optimum engine fuel economy
- Patent Title (中): 用于控制具有步进比率齿轮传动装置的车辆动力传动系的方法和实现最佳发动机燃料经济性的无级变速器
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Application No.: US11975005Application Date: 2007-10-17
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Publication No.: US07789795B2Publication Date: 2010-09-07
- Inventor: Ian Daniel McKenzie , Craig Steven Jacobs
- Applicant: Ian Daniel McKenzie , Craig Steven Jacobs
- Applicant Address: US OH Cleveland
- Assignee: Eaton Corporation
- Current Assignee: Eaton Corporation
- Current Assignee Address: US OH Cleveland
- Agency: Brooks Kushman P.C.
- Main IPC: B60W10/04
- IPC: B60W10/04
Abstract:
A method is disclosed for controlling overall transmission ratios in a vehicle powertrain with an engine, fixed multiple-ratio gearing and infinitely variable ratio components. For a given vehicle speed and for a given vehicle traction wheel horsepower, the fixed multiple-ratio gearing and the infinitely variable ratio components are controlled to operate with an overall ratio that will permit the engine to operate with optimum efficiency.
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