Throttle control device

Details Throttle control device Throttle control device

1993-06-11

1996-05-07

Marmor, Charles A.

Interrelated power delivery controls, including engine control

Transmission control

Engine controlled by transmission

477110, 123399, B60K 4104

Patent

active

055140491

ABSTRACT:
A throttle control device for a vehicle engine enables adjustment of pedal feeling of an accelerator pedal in accordance with a state of operation of the engine. A throttle valve provided in an intake pipe of an engine is actuated to vary its opening by a stepping motor. The accelerator pedal is provided with an accelerator opening sensor 10 which detects an amount of step down or operation of the accelerator pedal. The engine is provided with a water temperature sensor capable of detecting a temperature of cooling water circulated through the engine. A shift lever device is provided with a shift position sensor capable of sensing a range to which the shift lever has been operated. A CPU sets an amount of play of the accelerator pedal, i.e., a width of an insensitive zone, in accordance with the temperature of the cooling water detected by the water temperature sensor and the shift position detected by the shift position sensor. The CPU controls the stepping motor to attain a throttle opening corresponding to the accelerator operation amount after correction of the latter in accordance with the set amount of play of accelerator pedal operation.

REFERENCES:
patent: 4453516 (1984-06-01), Filsinger
patent: 4508078 (1985-04-01), Takeuchi et al.
patent: 4581924 (1986-04-01), Otobe et al.
patent: 4881428 (1989-11-01), Ishikawa et al.
patent: 4993383 (1991-02-01), Wokan et al.
patent: 5199401 (1993-04-01), O'Neil et al.
patent: 5215057 (1993-06-01), Sato et al.

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