Electronic throttle control with throttle position sensor...

Details Electronic throttle control with throttle position sensor... Electronic throttle control with throttle position sensor...

2006-08-01

2006-08-01

Huynh, Hai (Department: 3747)

Internal-combustion engines

Engine speed regulator

Open loop condition responsive

C123S399000

Reexamination Certificate

active

07082925

ABSTRACT:
Apparatus are provided for an electronic throttle control (ETC) system having a throttle body assembly. The apparatus includes a throttle actuator, an input circuit receiving sensor signals and having first, second, and third reference voltages, a first throttle position sensor (TPS) connected to the second reference voltage, a second TPS connected to the second reference voltage, a manifold absolute pressure (MAP) sensor connected to the first reference voltage, a manifold airflow (MAF) sensor connected to the third reference voltage, and a processor connected to the input circuit and transmitting a control signal to the throttle actuator based on the sensors, reference voltages, and returns. The ETC system has improved remedial actions responsive to failures of the various sensors, reference voltages, and returns.

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