Electronic control system for automatic vehicle transmission wit

Details Electronic control system for automatic vehicle transmission wit Electronic control system for automatic vehicle transmission wit

1988-06-20

1989-07-04

Diehl, Dwight G.

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74866, B60K 4106

Patent

active

048439150

ABSTRACT:
An electronic control system for controlling an automatic transmission mounted on a vehicle determines whether a vehicle speed sensor is abnormal or not when the transmission gears are in a neutral gear position. If the vehicle speed sensor is abnormal, then vehicle speed data immediately before the vehicle speed sensor becomes abnormal is stored, and a gear position is determined based on the stored vehicle speed data for a predetermined period of time after the transmission gears are shifted from the neutral gear position to another gear position.

REFERENCES:
patent: 4393732 (1983-07-01), Suzuki et al.
patent: 4635508 (1987-01-01), Tatsumi
patent: 4779490 (1988-10-01), Milunas et al.

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