A Worldwide Overview of Automotive Engine Control Sensor Technology

The paper presents an overview of developments on the principal sensors applicable to automotive engine control through brief descriptions of the more important sensor concepts for the various parameters, and an indication of sensor status. The parameters covered are manifold absolute pressure (MAP), manifold vacuum (MV), ambient absolute pressure (AAP), crankshaft position (speed), mass air flow, fuel flow, coolant temperature, air temperature, oxygen partial pressure, and throttle position. Special sections are included covering sensor developments overseas, and describing noteworthy efforts of the SAE and the International Standards Organization (ISO) with respect to engine sensor standards.