The rear wheels can get automatically locked, whenever the sensors present in the wheels, and the car body
detects some slippage.
When the computer
detects slippage of the front wheels, the viscous coupling engages and transfers up to 50 % of the torque to the rear wheels.
The RAV4 Hybrid uses its gas / electric hybrid engine up front to drive the front wheels and a separate electric motor to drive just the rear wheels when the vehicle
detects slippage.
If the STC unit
detects slippage in one drive wheel upon start up, it applies that wheel's brake in stages until the slippage stops.
In extreme low - traction circumstances, these systems can be too good at
detecting slippage.
When the sensors
detect slippage, a computer cuts power by one of several methods.
Not exact matches
The stability control system — which in common with many SUVs can't be fully deactivated — takes a particularly dim view of any kind of
slippage, positively slamming on the brakes when it
detects any sort of traction failure.
Front - wheel - drive is the normal drivetrain but AWD kicks in when
slippage is
detected and when strong acceleration is needed.
This system operates in front - wheel - drive mode for maximum efficiency, until it
detects wheel
slippage.
When
slippage is
detected, the advanced on - demand system automatically sends power to the rear wheels, for maximum all - wheel traction.
However, when wheel
slippage is
detected, the system reacts to transfer up to 50 per cent of the power to the front wheels in an effort to provide optimal traction.
Similarly, a traction - control system applies brakes and cuts engine power if
slippage is
detected.
Highlander's Dynamic Torque Control AWD system automatically shifts from front - wheel drive (FWD) to AWD when accelerating or when sensors
detect wheel
slippage.
LOW RANGE 4WD GMC's Autotrac 2 - speed active transfer case remains in 2 - wheel drive (2WD) until the system
detects wheel
slippage, then it automatically engages 4 - wheel drive (4WD) until traction is regained.
Its Variable Torque Management 4WD system lacked low - range gearing, but a locking rear differential provided additional traction when wheel
slippage was
detected.
Designed to operate on demand when rear - tire
slippage is
detected, the Maserati S Q4 drivetrain electronically springs into action only when it is required to do so.
The system also maximizes fuel economy, for in normal driving situations, it automatically switches to front - wheel drive — but also soon as wheel
slippage is
detected — it quickly switches back to all - wheel drive.
Options include Versatrak, a full - time all - wheel - drive system that transfers torque front to rear or side to side to help maintain grip with the road; StabiliTrak, which adjusts brake pressure and / or throttle when
slippage is
detected in lateral movement to continue traveling in the direction pointed; and enhanced traction control for sure - footed movement away from the light on slippery surfaces.
TRACTION CONTROL: A system that uses the anti-locking braking sensors and computer to pulse brakes when it
detects wheel
slippage on acceleration.
Basically the Rendezvous operates in front - wheel drive until the Versatrak system
detects some wheel
slippage, at which point the rear - wheel drive kicks in to help.
Engaging the Compass» 4WD Lock, however, ensures that maximum torque is sent to the rear axle for improved traction without having to wait for the onboard computer to
detect wheel
slippage.
Once a sensor
detects wheel
slippage, the engine throttles back automatically and a light on the dash lets you know traction is low.
The Highlander's Dynamic Torque Control AWD system automatically shifts from front - wheel drive (FWD) to AWD when accelerating or when sensors
detect wheel
slippage.
You tool around in two - wheel - drive until wheel
slippage is
detected, and then the system splits torque 50/50 front and rear so all four wheels are performing equal duty.
The all - wheel - drive MDX cruises along in front - wheel - drive until onboard sensors
detect wheel
slippage and automatically shift more power to the rear wheels.
When excessive wheel
slippage is
detected, a Traction Control System (TCS) automatically reduces driveline torque to help restore traction.
Focused on keeping you moving, the advanced 4MATIC system equipped on this Mercedes - Benz smartly uses tiny computers to send messages back and forth from tire to tire,
detecting even the smallest amounts of
slippage where it is ready to engage.
If no
slippage is
detected, the system reverts to front - wheel drive to save fuel.
This system operates in front - wheel - drive mode for maximum efficiency, until it
detects wheel
slippage - then AWD is automatically engaged.