What is active transfer case with front axle disconnect?
The AWD system available on the Challenger and Charger features an active transfer case and front-axle disconnect, both of which allow the vehicle to transfer from rear-wheel drive to all-wheel drive when the vehicle’s sensors detect a need for it.
What is a front axle disconnect system?
A front axle disconnect is a gearbox unit mounted against the front oil pan on the front passenger side that allows the driver to disengage from four wheel drive / all wheel drive to rear wheel drive. This part is failure prone and the new complete assembly is no longer available from the car dealer.
How does the system connect and disconnects the front axles?
The typical disconnect “box” or system usually involves taking the longer of the two front axles and splitting it into two shafts, with a disconnect using a sliding sleeve splined to one half and a shifting fork to move the sleeve to lock the two parts of the axle together when 4WD mode is engaged.
Does transfer case Control drive to front and rear axles?
The transfer case transfers power from the transmission to the front and rear axles by means of drive shafts. It also synchronizes the difference between the rotation of the front and rear wheels, and may contain one or more sets of low range gears for off-road use.
Is a PTU the same as a transfer case?
The PTU is an all-wheel drive (AWD) transfer case used in cars and sport utility vehicles. It allows for power to all four wheels either part time or full time, and also varies how much power goes to the front and rear by specific driving conditions.
Where is PTU located?
Located on a vehicle’s transmission, the PTU directs power to the rear-drive module (RDM) via the driveshaft when torque is needed. When only front wheel drive is required, AAM’s PTU disconnects and stops spinning the driveshaft no longer sending power to the RDM.
How does axle disconnect work?
One piece is connected to the carrier, the other connected to the wheel. This reduces drag on the axle by allowing only the spider and side gears to spin, while the differential carrier, pinion and drive shaft are at rest (as is the inner portion of the disconnected long shaft and its associated side gear).
What is a inter axle disconnect?
The axle disconnect system can be utilized to control front / rear axle torque transfer to change a vehicles drive from 2 wheel to 4 wheel with the flip of a switch. Or, the axle disconnect can be used to lock / unlock the axles, similar to the function of the ELD actuator.
What does the transfer case motor do?
No matter how simple or complex your transfer case is, this is what it does: It splits the engine torque coming from the transmission and delivers it to output shafts that connect to driveshafts leading to the front and rear axles.
Does a transfer case do anything in 2WD?
The transfer case is located between the transmission and front and rear differentials via the driveshafts, creating a two-wheel drive (2WD) or four-wheel drive vehicle. On a four-wheel or all-wheel drive (AWD) vehicle, it directs power to two or four wheels.
Does a front wheel drive have a PTU?
The “transfer case” that is used in FWD vehicles is called a power transfer unit (PTU), which is attached to the transaxle and sends power to a rear differential.
Where is a PTU located?