Vehicle speed responsive brake and decelerator controls

Details Vehicle speed responsive brake and decelerator controls Vehicle speed responsive brake and decelerator controls

1980-10-14

1983-06-07

Krizmanich, George H.

192 clutches and power-stop control

Vortex-flow drive and clutch

With brake

192 0044, 192 358, 192103R, 74866, B60K 4128

Patent

active

043866883

ABSTRACT:
An automatic decelerator device for use in crawler-type vehicles such as a bulldozer or the like comprising a vehicle speed change lever means having a plurality of speed stages for forward and backward drives, a plurality of solenoid operated valves provided in a transmission for controlling the same to change over the vehicle speed and/or the drive direction, controller means adapted to actuate brake means and a decelerator, a comparator for comparing an actual vehicle speed with a preset vehicle speed so as to detect whether the actual vehicle speed is higher or lower than the preset one thereby generating a signal corresponding to the detection result, and a solenoid operated valve control circuit for controlling the controller means and the solenoid operated valves in response to the signal.

REFERENCES:
patent: 4263997 (1981-04-01), Poore
patent: 4267914 (1981-05-01), Saar

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