Actuating apparatus for automated constituents of power trains i

Details Actuating apparatus for automated constituents of power trains i Actuating apparatus for automated constituents of power trains i

1997-08-06

1999-12-21

Marmor, Charles A

Machine element or mechanism

Gearing

Interchangeably locked

7447312, 74 8914, 3242072, F16H 6132, F16H 6134

Patent

active

060033959

ABSTRACT:
A power train for use in a motor vehicle has a prime mover (such as a combustion engine), an automated gearbox which transmits torque to the wheels of the vehicle, a friction clutch between the prime mover and the gearbox, a computerized control unit which receives signals from several sensors, and one or more actuators which operate the clutch and/or the gearbox in response to signals from the control unit. The actuator for selecting the gear ratio of the gearbox and for shifting the gearbox into and from selected gears employs two transmissions each of which has a worm gearing receiving torque from a discrete electric motor of the actuator and a spur gearing which transmits motion from the respective worm gearing to a mobile component of the gearbox. The connection between the worm and spur gearings in at least one of the transmissions can comprise a damper cooperating with one or more sensors serving to transmit signals to the control unit.

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