Electronic control device for changing the speed ratios in an au

Details Electronic control device for changing the speed ratios in an au Electronic control device for changing the speed ratios in an au

1980-07-22

1983-10-25

Gruber, Felix D.

Boots, shoes, and leggings

74866, G05D 1702, G06G 764, B60K 4108

Patent

active

044122900

ABSTRACT:
An electronic governor receiving two signals, one corresponding to the load on the motor and the other to the speed of the vehicle comprises two time-interval comparators controlled by two switches corresponding to the manual control imposing transmission ratios and by a retrocontact switch. The output signals of the governor supplying orders for speed changes feed a sequential commutation device which controls two electrically actuated valves controlling the gear box with time delays and for transitory changes.

REFERENCES:
patent: 3823621 (1974-07-01), Kubo et al.
patent: 3938409 (1976-02-01), Uozumi
patent: 4034627 (1977-07-01), Mizote
patent: 4041809 (1977-08-01), Dick et al.
patent: 4073204 (1978-02-01), Dick
patent: 4140031 (1979-02-01), Sibeud et al.
patent: 4274306 (1981-06-01), Yokoi et al.
patent: 4290324 (1981-09-01), Aubert et al.
patent: 4294341 (1981-10-01), Swart

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