Invention Grant
US06981931B2 Method and apparatus for providing momentary torque reversal for a transmission having an automated shift system
失效
用于为具有自动换档系统的变速器提供瞬时扭矩反转的方法和装置
- Patent Title: Method and apparatus for providing momentary torque reversal for a transmission having an automated shift system
- Patent Title (中): 用于为具有自动换档系统的变速器提供瞬时扭矩反转的方法和装置
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Application No.: US10799983Application Date: 2004-03-12
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Publication No.: US06981931B2Publication Date: 2006-01-03
- Inventor: Wade A. Smith , Thomas A. Genise
- Applicant: Wade A. Smith , Thomas A. Genise
- 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: B60K41/02
- IPC: B60K41/02

Abstract:
An automated vehicle transmission having a wet clutch and an auxiliary motor that is operatively connected to the transmission to overcome residual torque forces in the wet clutch. Residual torque forces in the wet clutch may prevent disengagement of a gear train and also prevent the transmission from shifting into neutral. A control system determines whether residual torque is resisting the disengagement of the gear train for more than a predetermined time period. According to the method, if a shift is delayed for more than the predetermined time period, the auxiliary motor is actuated to apply an oppositely oriented torque to the transmission gear train to overcome the residual torque and allow the transmission to shift into neutral.
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