Device for changing the gears automatically on a synchronized ge

Details Device for changing the gears automatically on a synchronized ge Device for changing the gears automatically on a synchronized ge

1977-10-19

1980-12-09

Krizmanich, George H.

192 clutches and power-stop control

Transmission control and clutch control

Common control

B60K 4122

Patent

active

042380111

ABSTRACT:
A processing device capable of starting the sequence of the speed change operations automatically in the gearbox of a vehicle, such as the automatic transmission of a truck. A first comparator compares the data received from a gearbox condition detecting device and that received from a speed ratio selection device. In the event of a difference, the comparator sends to a gearbox control device either a pulse for increasing by one speed ratio, or a pulse for decreasing by one speed ratio.

REFERENCES:
patent: 3548980 (1970-12-01), Schmidt
patent: 3628642 (1971-12-01), Ravenel
patent: 4039061 (1977-08-01), Pruvot et al.

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