Automatic transmission control system with reset

Details Automatic transmission control system with reset Automatic transmission control system with reset

1982-04-14

1985-02-12

Gruber, Felix D.

Boots, shoes, and leggings

74866, B60K 4108, G06F 1520

Patent

active

044995423

ABSTRACT:
A speed range control system setting an automatic transmission at a proper speed range in accordance with throttle opening and vehicle traveling speed. The system detects a sudden fall in the level of a vehicle speed signal under the anomalous conditions such as disconnection of a vehicle speed signal line or slippage of wheels due to emergency braking, and then sets the automatic transmission at a safety speed range. After setting at the safety speed range, the speed range of the automatic transmission is set in accordance with the throttle opening and vehicle traveling speed after counting a predetermined number of vehicle speed signal pulses generated in conjunction with rotation of a drive shaft.

REFERENCES:
patent: 4253348 (1981-03-01), Will et al.
patent: 4354236 (1982-10-01), Miki et al.
patent: 4363973 (1982-12-01), Kawata et al.
patent: 4365526 (1982-12-01), Suga et al.
patent: 4380048 (1983-04-01), Kishi et al.
patent: 4393732 (1983-07-01), Suzuki et al.
Carnes et al.: Processor Checking, IBM Technical Disclosure Bulletin, vol. 17, No. 11-Apr. 1975, pp. 3188, 3189.

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