Invention Grant
- Patent Title: System and method for detecting vehicle clutch touch point
- Patent Title (中): 用于检测车辆离合器接触点的系统和方法
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Application No.: US14669099Application Date: 2015-03-26
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Publication No.: US09381912B2Publication Date: 2016-07-05
- Inventor: Stephen T. West , Carl E. Perry
- Applicant: Allison Transmission, Inc.
- Applicant Address: US IN Indianapolis
- Assignee: Allison Transmission, Inc.
- Current Assignee: Allison Transmission, Inc.
- Current Assignee Address: US IN Indianapolis
- Agency: Woodard Emhardt Moriarty McNett and Henry LLP
- Main IPC: B60W20/00
- IPC: B60W20/00 ; B60W10/02 ; B60W10/06 ; B60W10/08 ; B60W50/04 ; F02N11/08 ; F16D48/06 ; B60W50/00 ; B60K6/48

Abstract:
A hybrid system and method is configured to achieve and maintain a touch point for a clutch so as to allow an engine to rapidly restart. The hybrid system includes an eMachine configured to start the engine. The clutch is configured to operatively connect and disconnect the eMachine and the engine. A motor torque PID controller is configured to operate the eMachine at a desired speed by regulating torque of the eMachine. A clutch pressure PID controller is configured to actuate the clutch to a touch point by regulating clutch pressure. The motor torque PID controller and the clutch pressure PID controller include a compensation function to account for a change in torque caused by actuation of the clutch by the clutch pressure PID controller.
Public/Granted literature
- US20150197245A1 SYSTEM AND METHOD FOR DETECTING VEHICLE CLUTCH TOUCH POINT Public/Granted day:2015-07-16
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