发明授权
- 专利标题: System and method of speed-based downspeed coasting management
- 专利标题(中): 基于速度的降速滑行管理系统和方法
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申请号: US13336955申请日: 2011-12-23
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公开(公告)号: US08731788B2公开(公告)日: 2014-05-20
- 发明人: Vivek A. Sujan , Phani Vajapeyazula , Kenneth Follen , An Wu , Barty L. Moffett , Howard R. Frost
- 申请人: Vivek A. Sujan , Phani Vajapeyazula , Kenneth Follen , An Wu , Barty L. Moffett , Howard R. Frost
- 申请人地址: US MN Minneapolis
- 专利权人: Cummins Intellectual Property, Inc.
- 当前专利权人: Cummins Intellectual Property, Inc.
- 当前专利权人地址: US MN Minneapolis
- 代理机构: Foley & Lardner LLP
- 主分类号: F16H61/28
- IPC分类号: F16H61/28 ; B60W10/06
摘要:
A velocity profile can be used in conjunction with vehicle operating condition data to determine a gear shift schedule that mitigates the amount of service brake effort required to slow a vehicle by making optimal use of engine speed, friction and engine brakes. The gear shift point drives the engine to a higher operating speed and greater frictional torque, slowing the vehicle, which can then coast to a desired speed. The gear shift point can be timed to minimize fuel consumption during the maneuver. Thus, a vehicle downshift event is created based on the transmission gear recommendation. The benefit is increased freight efficiency in transporting cargo from source to destination by minimizing fuel consumption and maintaining drivability.
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