The superior technology extends far beyond just the drivetrain, and you'll feel it every time you sit behind the wheel. Test drive a new Subaru Outback, Impreza, Forester or any other model we have at Quality Subaru in Wallingford and you'll love the feeling of all-wheel drive control. Quality Subaru. 711 N Colony Rd (Rte 5) Wallingford, CT 06492. 1. General. Based on information provided by various sensors, the 4WD ECU controls the amperage that is applied to the electric control coupling, in order to transmit drive torque to the rear wheels when needed, and in the amount needed. The following describes the features of the active torque control 4WD system. Traction performance. That magnetic field slows the rotation of the armature plate and the cage. When the rear wheels lose traction, the rotational speed of the driveshafts to the rear and to the front differentials speed up, accelerate. You see that immediately because the rear wheels are spinning fast, and your speedometer shows that. The Cherokee’s base 4WD system has been updated with less internal friction and a reduction of 17 pounds. Active Drive I is the basic 4WD system offered in the Cherokee’s Latitude, Latitude For four-wheel drive to work when reversing, a vacuum-actuated "throttle control element" is installed on the differential case. This device locks the freewheel mechanism when in reverse gear. This device locks the freewheel mechanism when in reverse gear. Four-wheel drive. The original four-wheel drive system was developed to maintain optimal traction when manually selected. So how does 4WD work? Four-wheel drive means the front and rear driveshafts can be locked together to move at the same speed and distribute the same amount of torque to all four of your vehicle’s wheels, and it is To send engine power to the front wheels, engage the 4-wheel-drive switch. 4WD can be used at all speeds, and provides added traction for climbing, slippery conditions and loose surfaces. In this setting, the tail will tend to kick out less—but note that 4WD isn’t a substitute for driving within your and your vehicle’s limits. 4x4 LOW The four-wheel-drive system works by engine torque being sent to all wheels equally. This is achieved by a center differential that has a front and rear driveshaft. When you engage 4H from 2H these driveshafts are connected to the front and rear differentials that split the power equally and manage the transfer of power to each wheel. 4 wheel drive lock (or 4WD Lock) means that you are driving with an equal speed of both front and rear tires at the same time. However, it cannot lock the speeds of the wheels on the axle itself. The transfer case of your vehicle is locked and the amount of torque received by the transfer case from the engine of the vehicle is split into the 1P40.

how does 4 wheel drive work