ARIA

ENGINE

167

SENSORS AND ACTUATORS DETAILS

1. CRANK ANGLE SENSOR

The crank angle sensor is a magnetic field sensitive

transducer and generates a voltage output propor-

tional to the rate of change of the magnetic field near

a "Missing tooth" configuration. It monitors the rotat-

ing speed (

rpm

), the position of crankshaft/ piston

and speed fluctuations of the engine and gives con-

tinuous feedback to the ECU. In other words it gives

engine speed and piston position signal to the ECU.

The sensor gap should be 0.3 to 1.7 mm. If the gap

between the flywheel and crank angle sensor is not

correct, the engine will not start or may misfire.

Intended Target wheel is uniformly cut with 60 teeth

and 2 teeth removed ideally between 120 & 90 de-

grees BTDC i.e. in a region where it is unlikely

Injection events shall be scheduled. The sensor will

measure a rotating feature (

target wheel

) by sensing

teeth/slot patterns and process this information into a

positive going voltage, zero crossing and negative

going voltage pulse for each teeth/slot that passes

below the sensor tip.

LOCATION

The crank angle sensor is fitted on the clutch hous-

ing.

TIGHTENING TORQUE

DESCRIPTION

TORQUE

Hex bolt M6 x16 0.4 to 0.6 Kgfm

CONNECTOR DETAILS:

PIN OUT DETAILS

PIN NO

DESCRIPTION

Crank shaft sensor(+)

Crank shaft sensor(-)