Invention Grant
US07676313B2 Target speed control strategy for power-off shifts in a hybrid electric vehicle
有权
混合动力汽车的停电班车目标速度控制策略
- Patent Title: Target speed control strategy for power-off shifts in a hybrid electric vehicle
- Patent Title (中): 混合动力汽车的停电班车目标速度控制策略
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Application No.: US11580319Application Date: 2006-10-12
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Publication No.: US07676313B2Publication Date: 2010-03-09
- Inventor: Walt J. Ortmann , Andrew J. Silveri
- Applicant: Walt J. Ortmann , Andrew J. Silveri
- Applicant Address: US MI Dearborn
- Assignee: Ford Global Technologies, LLC
- Current Assignee: Ford Global Technologies, LLC
- Current Assignee Address: US MI Dearborn
- Agency: MacMillan, Sobanski & Todd, LLC
- Agent David B. Kelley
- Main IPC: H02P17/00
- IPC: H02P17/00

Abstract:
A method for controlling a power-off shift from a current gear to a target gear in a hybrid electric powertrain including an engine, electric motor and automatic transmission includes the steps of determining an initial target speed for the current gear, operating the motor at the initial target speed, repetitively determining a current gear ratio, a output shaft speed during the gear ratio change, a time rate of change of output shaft speed, using the current gear ratio, the current speed of the output shaft and the time rate of change of output shaft speed repetitively to determine a current target speed, and operating the motor at the current target speed until a gear change to the next gear is completed.
Public/Granted literature
- US20080090697A1 Target speed control strategy for power-off shifts in a hybrid electric vehicle Public/Granted day:2008-04-17
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