5D2-16 TRANSFER CASE - TOD DEFINITION OF TERMINOLOGY SSANGYONG Y200 Definitions Description Rear Speed Sensor A Hall Effect speed sensor which produces a square wave. 0-5Vdc signal in response to a rotating 30 tooth wheel coupled to the rear propeller shaft inside the Transfer Case. Each rotation of the rear propeller shaft will result in 30 speed sensor pulse. YAD5D120 Front Speed Sensor A Hall Effect speed sensor which produces a square wave. 0-5Vdc signal in response to a rotating 30 tooth wheel coupled to the front propeller shaft inside the Transfer Case. EMC (Electromagnetic Clutch) Each rotation of the front propeller shaft will result in 30 speed sensor pulse.
An Electromagnetic clutch used to control the amount of torque applied to the front propeller shaft. TOD TOD is an abbreviation of Torque On Demand and means that the torque is transferred according to the operating condition. TPS (Throttle Position Sensor) TPS is an abbreviation of Throttle Position Sensor. For MSE engine, the potentiometer in the throttle actuator acts as TPS. PWM PWM is an abbreviation of Pulse Width Modulation and is a type of output value control by adjusting pulse width. Duty Cycle Duty Cycle is the time the EMC is on divided by the period in which it is being modu- lated. Touch-off A minimum amount of duty cycle applied to the EMC.
Front Overrun A condition where the front propeller shaft is turning at a rate which is faster than the rear propeller shaft. Rear Overrun A condition where the rear propeller shaft is turning at a rate which is faster than the front propeller shaft. High Range The highest (numerically lowest = 1 : 1) gear ratio between the input and outputs of the Transfer Case. Low Range The lowest (numerically highest = 2.48 : 1) gear ratio between the input and outputs of the Transfer Case.