Invention Grant
- Patent Title: System and method of speed-based downspeed coasting management
- Patent Title (中): 基于速度的降速滑行管理系统和方法
-
Application No.: US13336955Application Date: 2011-12-23
-
Publication No.: US08731788B2Publication Date: 2014-05-20
- Inventor: Vivek A. Sujan , Phani Vajapeyazula , Kenneth Follen , An Wu , Barty L. Moffett , Howard R. Frost
- Applicant: Vivek A. Sujan , Phani Vajapeyazula , Kenneth Follen , An Wu , Barty L. Moffett , Howard R. Frost
- Applicant Address: US MN Minneapolis
- Assignee: Cummins Intellectual Property, Inc.
- Current Assignee: Cummins Intellectual Property, Inc.
- Current Assignee Address: US MN Minneapolis
- Agency: Foley & Lardner LLP
- Main IPC: F16H61/28
- IPC: F16H61/28 ; B60W10/06

Abstract:
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.
Public/Granted literature
- US20120197500A1 SYSTEM AND METHOD OF SPEED-BASED DOWNSPEED COASTING MANAGEMENT Public/Granted day:2012-08-02
Information query