发明名称 |
System and method for sliding clutch engagement under tooth butt or torque lock conditions |
摘要 |
A system and method are disclosed for controlling a shift event in a transmission wherein a shift actuator develops a force to effect the engagement of a clutch collar and a gear. The method comprises detecting when a non-fully engaged condition of the clutch collar and the gear occurs, indicating either a tooth butt or torque lock condition, and then pulsing the shift actuator, when the non-fully engaged condition is detected, between a relatively low force and a relatively high force to disturb the clutch collar and the gear out of the non-fully engaged condition. The detecting step comprises examining either the axial position of the clutch collar or the axial position of a shift rail operatively connected to the clutch collar with a rail position sensor. Preferably, a signal having a modulated pulse width and a frequency of between about 5 and 20 Hertz is sent to the shift actuator. The system which embodies this method is disclosed in the forms of an automated mechanical transmission having sliding clutch collars and a transmission system having a standard friction master clutch interposed the engine and the transmission.
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申请公布号 |
US5389053(A) |
申请公布日期 |
1995.02.14 |
申请号 |
US19930095279 |
申请日期 |
1993.07.21 |
申请人 |
EATON CORPORATION |
发明人 |
STEEBY, JON A.;FRITZ, TODD W. |
分类号 |
F16H61/12;B60W10/02;B60W10/10;B60W30/18;F16H59/04;F16H61/02;F16H61/04;F16H61/28;F16H61/682;F16H63/30;(IPC1-7):B60K20/02 |
主分类号 |
F16H61/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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