ENGINE 4 Crank sensor Vehicle speed sensor also controls the Inlet metering valve on the Fuel Injection pump, Engine cooling Fans, Air conditioning and Exhaust Gas Recirculation (EGR) valve. The injection parameters are corrected for various atmospheric conditions like cold and hot climates and different Altitudes. Corrections are also applied considering engine safety in case of faults and any abnormal overheating. Fault detection is made simple. Faults are recorded in the ECU which makes it easy to be read with the help of a diagnostic tool and to find a solution. 2. Vehicle Speed Sensor: This sensor is located inside the Gear Box which gives vehicle speed information to the ECU.It also helps the ECU in determining on which gear the vehicle is driving and ensures smooth driving at all gears. EMS consists of the following sensors and components 1. Crank sensor: The crank speed sensor is fitted on the clutch housing. The position sensor is a magnetic field sensitive transducer and generates a voltage output proportional to the rate of change of the magnetic field near a “sensed target” configuration. It monitors the rotating speed (rpm) and speed fluctuations of the engine and givens continuous feed back to the ECU.In other words it gives engine speed and TDC position signal to ECU.
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