What are the components of a four wheel drive system?
Components of a Four-wheel-drive System 1 Transfer Case. This is the device that splits the power between the front and rear axles on a four-wheel-drive car. 2 Locking Hubs. Each wheel in a car is bolted to a hub. 3 Advanced Electronics. On many modern four-wheel and all-wheel-drive vehicles, advanced electronics play a key role. …
How does a part time 4 wheel drive system work?
Part-time four-wheel-drive trucks usually have locking hubs on the front wheels. When four-wheel drive is not engaged, the locking hubs are used to disconnect the front wheels from the front differential, half-shafts (the shafts that connect the differential to the hub) and driveshaft.
How does a 4WD control module do a shift?
The 4WD control module accomplishes shifts by interpreting inputs from: • MSS • vehicle speed signal (transmitted from the ABS system) • gearmotor encoder plate position • brake pedal switch • digital TR sensor (automatic transmission) • clutch pedal position (CPP) switch (manual transmission) • ignition switch Copyright 2002, Ford Motor Company
What kind of differential does a 4 wheel drive system use?
The EMCD system is manufactured by GKN Driveline. It is acting as a limited-slip central differential, controlled by an electronic control module (ECM). The vehicles equipped with an EMCD are working in nominal mode as a FWD vehicles.
Components of a Four-wheel-drive System 1 Transfer Case. This is the device that splits the power between the front and rear axles on a four-wheel-drive car. 2 Locking Hubs. Each wheel in a car is bolted to a hub. 3 Advanced Electronics. On many modern four-wheel and all-wheel-drive vehicles, advanced electronics play a key role.
Part-time four-wheel-drive trucks usually have locking hubs on the front wheels. When four-wheel drive is not engaged, the locking hubs are used to disconnect the front wheels from the front differential, half-shafts (the shafts that connect the differential to the hub) and driveshaft.
The 4WD control module accomplishes shifts by interpreting inputs from: • MSS • vehicle speed signal (transmitted from the ABS system) • gearmotor encoder plate position • brake pedal switch • digital TR sensor (automatic transmission) • clutch pedal position (CPP) switch (manual transmission) • ignition switch Copyright 2002, Ford Motor Company
How does a four wheel drive differential work?
From there, one driveshaft turns the front axle, and another turns the rear axle. When four-wheel drive is engaged, the transfer case locks the front driveshaft to the rear driveshaft, so each axle receives half of the torque coming from the engine. At the same time, the front hubs lock. The front and rear axles each have an open differential.