Method for directing a down-shift operation for a vehicle with a

Details Method for directing a down-shift operation for a vehicle with a Method for directing a down-shift operation for a vehicle with a

1985-09-26

1988-01-19

Braun, Leslie A.

Machine element or mechanism

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

Preselected indexed position

74865, B60K 4104

Patent

active

047198206

ABSTRACT:
A method for indicating a running condition of a vehicle having an engine and a manual transmission generates a direction of a down-shift operation according to a detected opening angle of a throttle valve of the engine and detected acceleration and deceleration of the vehicle. The direction of the down-shift operation is generated when the acceleration of the vehicle is above a predetermined value while the throttle valve is substantially fully closed and when the deceleration of the vehicle is above a predetermined value while the throttle valve is substantially fully opened. Thus, a suitable direction of gear position is generated when the vehicle is climbing an uphill road or coasting on a downhill road.

REFERENCES:
patent: 4354173 (1982-10-01), Kuhn et al.
patent: 4425620 (1984-01-01), Batcheller et al.
patent: 4438423 (1984-03-01), Stier
patent: 4463427 (1984-07-01), Bonnetain et al.
patent: 4517646 (1985-05-01), Magnusson et al.
patent: 4539868 (1985-09-01), Habu
patent: 4544909 (1985-10-01), Di Nunzio
patent: 4555691 (1985-11-01), Hosaka et al.
patent: 4559599 (1985-12-01), Habu et al.
patent: 4564906 (1986-01-01), Stephan et al.

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