Throttle valve control system obtaining continuous sensor output

Details Throttle valve control system obtaining continuous sensor output Throttle valve control system obtaining continuous sensor output

1996-11-08

1998-05-05

Dolinar, Andrew M.

Internal-combustion engines

Engine speed regulator

Open loop condition responsive

25112904, F02D 4120

Patent

active

057461783

ABSTRACT:
A throttle valve control system and a control method thereof prevents an output of throttle sensors from becoming discontinuous at a point of switching the throttle sensors, and obtains a continuous output over the whole range of the sensor output, and accordingly can perform highly accurate throttle control. The system includes a first A/D converter for converting an output signal of a throttle sensor into a digital signal, an amplifier for amplifying the output signal of the throttle sensor, a second A/D converter for converting the amplified output signal into a digital signal and an amplification factor adjuster for receiving outputs from one or the other of the A/D converters and scaling the received output signal. A correction is provided for the amplification factor of the adjuster whereby a continuous actual opening degree signal without any step is obtainable over the entire range of the throttle sensor output.

REFERENCES:
patent: 4911125 (1990-03-01), Sugawara et al.

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