192 clutches and power-stop control – Transmission control and clutch control – Interrelated
Patent
1999-03-15
2000-08-29
Marmor, Charles A.
192 clutches and power-stop control
Transmission control and clutch control
Interrelated
74336R, F16H 5956, F16H 5942
Patent
active
061094072
ABSTRACT:
A process for the control of non-synchronized, manually shiftable vehicle transmissions which are actuated in vehicles of new construction by means of an automated transmission control system whereby the driver is able to select a desired gear by means of an operating unit which is connected electrically to the transmission control system. When the vehicle is stopped and the clutch is disengaged practice of the invention prevents a situation in which the engagement of a gear is prevented by a tooth-on-tooth position of the transmission claws. The disclosed process makes it possible to engage the selected gear in all operating states of the vehicle in a simple and reliable manner. In this regard, a desired gear is first selected, and the clutch is then disengaged. When a suitable speed of the transmission input is then reached, a gear to be engaged is automatically engaged. Thereby, the engagement of a gear when the vehicle is stopped is systematized and facilitated for the driver. Furthermore the driver need not disengage and then again engage the clutch repeatedly in order to avoid a tooth-on-tooth position. The process is used preferably in utility vehicles.
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Bockmann Gerhard
Bohm Andreas
Marmor Charles A.
Parekh Ankur
WABCO GmbH & Co, OHG
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