Machine element or mechanism – Gearing – Interchangeably locked
Patent
1995-12-04
1998-03-03
Ta, Khoi Q.
Machine element or mechanism
Gearing
Interchangeably locked
477 80, 477902, B60K 4104, B60K 4110
Patent
active
057222932
ABSTRACT:
Broadly, the present invention is directed to a method for controlling the shifting of a drag race vehicle with a controller for controlling an actuatable shifter assembly. This method includes resetting the controller followed by actuating the controller and launching the vehicle. At a predetermined engine speed value or after a first timed duration based on a predetermined engine speed value, the shifter assembly is actuated for a second timed duration to shift to a next higher gear. Finally, shifter assembly actuation is repeated until all of the gears of the vehicle desired to be shifted have been shifted. Another aspect of the present invention is a controller for controlling the shifting of a drag race vehicle shifter with an actuatable shifter assembly and which is activatable by a first duration timer or an rpm switch based on a predetermined engine speed value. This controller includes a reset for resetting the controller; a second duration timer; setting means for setting the number of forward gears which the vehicle has; and means for causing the activation of the shifter assembly actuator until all of the forward gears of the vehicle desired to be shifted have been shifted.
REFERENCES:
Summit Racing Catalog, Mar.-Apr. 1996, p. 171. "solenoid shifter".
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