Engine Sensors: State of the Art

Demands for new sensors for application to transportation electronics control systems are well established. State of the art of new sensors which have been applied or recently developed for use in transportation electronics systems are reviewed. Developments of five different types of sensors are discussed. These developments include: four designs of magnetic-based torque sensors, three designs of lean air-fuel ratio sensors, two designs of cylinder pressure sensors, one design of a mass air flow sensor, and a new use of a crankshaft position sensor.