How this system works is to adjust the torque between the front and rear wheels in a variable fashion, depending
on wheel speed, surface conditions, and throttle amount.
This new - for - 1958 option «gives full two - wheel traction on all types of surface but allows a differential between
wheel speeds for normal cornering,» he explained.
Traction and stability control
involves wheel speed sensors, the ABS system, and electronic controllers.
The direct system uses sensors in each wheel and the indirect system
measures wheel speed in conjunction with the anti-lock brake system.
Some that will sense torque, and others will
sense wheel speed to make their decision about what to alter.
If the ABS did not activate, either something is wrong with the ABS, or there weren't any of the signals that would cause it to activate (
differential wheel speed).
They basically use all the same hardware as the ABS system, so one probable fault would be a
bad wheel speed sensor.
I would have them check to see if any abs codes might have been stored and also have them
check wheel speed sensor / tone wheel.
This system will continually monitor inputs such as steering and
wheel speed then process the data.
As a result, the system could control runaway
drive wheel speed in as little as a third of a wheel revolution.
The boost, or assist, is variable and speed sensitive, responding to sensors monitoring steering torque,
steering wheel speed and angle and vehicle speed.
As the brakes are applied, the computer keeps receiving updates
on wheel speed and controls braking pressure accordingly.
In my experience, when these two lights come on together, it is usually caused by a
faulty wheel speed sensor.
Upgraded Performance Data Recorder with
individual wheel speeds and suspension displacements, intake and ambient air temperature, and yaw rate
Your car is equipped
with wheel speed sensors at each of the four wheels which...
Tip; if you have to tow a car with a ruined CV, run the engine and use the gears to turn the driveshafts at the speed they «should» be turning for the given
wheel speed while you tow - it will considerably reduce the horrific graunching noises, reducing risk of damage to other components
Drag Mode suspension tuning, which maximizes weight transfer to the rear wheels for better traction, and Drag Mode Launch Assist, which
uses wheel speed sensors to watch for driveline - damaging wheel hop at launch and in milliseconds modifies the engine torque to regain full grip
This system also uses data
from wheel speed sensors, as well as data from electronic leveling control systems, to determine if an over-steer situation is occurring.
Basically this system in Ferrari works as follows: front gearbox chooses one of two speeds and then clutch slippage is used to give
front wheels speed matching to rears.
The manually locking rear differential from the earlier generations was replaced with a conventional open differential, with Electronic Differential Lock (EDL)(which detects wheelspin via ABS
road wheel speed sensors, and applies brakes to one spinning wheel, thus transferring torque via open differential to the opposite wheel which has more traction).
I also understand that this is not a replacement for modern day closed loop feedback based ABS systems which take multiple parameters into account
including wheel speed trends apart from just comparing wheel - speeds to each other.
The available intelligent all - wheel - drive system provides increased traction on slippery roads by actively managing the torque distribution between the front and rear axles, based on factors such
as wheel speed, throttle and surface conditions.
A change was made to the rear
ABS wheel speed sensor harness in 2012 Impreza vehicles.
The trucks also have Multi-Terrain Select, and like systems in more - expensive SUVS, it calibrates the traction and stability control to the terrain,
more wheel speed in say «mud and sand» mode, and more traction intervention in «rock» mode.
Four - wheel drive and all - wheel drive vehicles are equipped with additional differentials and / or viscous couplings that are designed to allow momentary differences
in wheel speeds when the vehicle turns a corner or temporarily spins a tire.
Also helping to bring the Expedition to a stop is electronic brake force distribution (EBD), which uses data measured by sensors to
compare wheel speed 50 times during each rotation.
Roll stability control systems automatically intervene if sensors monitoring a truck tractor's lateral acceleration and
wheel speed detect a high rollover risk.
By mandating a specific pressure measurement, this rule effectively eliminates pressure warning systems that rely on antilock
brake wheel speed sensors.
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The S model receives an electronic limited - slip differential that reduces
inside wheel speed during cornering acceleration and stabilizes the rear end during hard braking.
Most wheel speed and transmission speed sensors are Hall effect, so will produce a digital signal in the first place... I'm pretty sure you don't need a converter.
Instead, the drive from the high revving electric motors is sent through a reduction gear, which converts high motor speeds to more
appropriate wheel speeds.
TPMS provides a more accurate tire pressure reading because it measures actual tire pressure as opposed to
wheel speed like the Low Tire Warning System
Although not a «proper» modern stability control system, trace control monitors steering angle, throttle position and individual
wheel speeds although there is no yaw input.
If you confirm that the vehicle has low power at 0 — 40 mph, with normal power above 40 mph, and no DTCs are stored, the most likely cause is an issue with the ABS /
VDC wheel speed sensors / signals (sensor, wiring or debris on sensor / rotor).
To boost the pick - up's off - road ability, four - wheel - drive variants feature an electronic limited - slip differential that uses braking sensors to monitor
wheel speed before braking wheels that are rotating faster than others to boost traction.
The system never locks the speed of the two drive wheels together as would a locking differential, but instead allows
different wheel speeds to accommodate the longer distance the outer wheel must travel when cornering.
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Common issues are
generally wheel speed sensor failures, but this can be determined by having the faults read out of the ESC module...
Phrases with «wheel speed»