esp debate

[jcg05c]

my phone sucks and cant search on it . does turning your esp on or off cut the gas supp to the engine meaning that stops the wheels from spinning a guy at work is saying that and im not sure if

[mike-2ptzero]

Turning the ESP off keeps the ECU from reducing throttle to control wheel spin on the DBW.

[SilverBullets]

yea the ESP has nothing to do with gas supply... its like mike said, it controls the ECU... so with ESP off the ECU will not apply the brake or transfer the power from wheel to wheel when it senses tire slipage... when the ESP is on, it will transfer power etc. when it senses a tire is loosing traction

[festerfm]

do b6's have EDL?? mine has an EDL light on the dash (it's not on, just comes on at start up then goes off like the rest) and when i turn off the esp, once in a while, it feels like all 4 wheels just hook and take off.. kinda a nice feeling specially in mud.. not that i mud w/ my audi, but in circumstances like the pic on the left...

[mike-2ptzero]

Here is the info right off the Audi site.


EDL

The electronic differential lock (EDL) permits smooth, comfortable starts on road surfaces that do not have a uniform coefficient of friction. If a wheel starts to spin, EDL brakes it as necessary so that power is transmitted to the wheel with the better traction. EDL reduces tire wear and works up to about 25 mph (quattro®: up to about 50 mph). EDL is part of the Electronic Stabilization Program (ESP) and the traction control (ASR) .

ESP

The Electronic Stabilization Program (ESP) helps make the vehicle easier to control in handling situations close to the limit. It reduces the danger of swerving and thus improves directional stability. ESP identifies the car's intended direction and response. It applies the brakes on individual wheels, thereby generating one-sided forces that help to keep the car moving in the desired direction. The program uses the Anti-lock Braking System (ABS), Electronic Brake-force Distribution (EBD), the Electronic Differential Lock (EDL) and the traction control (ASR) system, and is permanently active.

The latest version, ESP 8.0 also offers a dry brake function. In adverse weather conditions, the system wipes water off the brake discs at regular intervals by applying the brake pads. This process goes unnoticed by the driver and reduces the stopping distance in wet weather compared with conventional brake systems.

ASR

For today’s typical high-torque engines, a form of wheelslip regulation or traction control (ASR) can increase both comfort and safety, particularly on surfaces with differing coefficients of friction or on slippery roads. It makes smooth starts and acceleration possible through all speed ranges without wheel-spin or fishtailing.

ASR only operates in conjunction with the electronic accelerator (E gas) and uses components of the anti-lock braking system (ABS). If one wheel suddenly begins to rotate faster than the others (slip), ASR intervenes in the engine management system and reduces power until the wheel stops spinning.

ASR improves traction and can help the driver maintain control even if the limit of adhesion is inadvertently reached while cornering. In addition, it reduces tire wear. ASR activation, is indicated by a flashing light in the instrument cluster; it works with the electronic differential lock (EDL) and it is also part of the electronic stabilization program (ESP). ASR can be deactivated with the ESP switch.

Egas

“E” stands for “electronic.” In cars equipped with e-gas, the accelerator pedal acts like a sensor. Based on the position of the pedal, it immediately recognizes the performance the driver wants. This output signal is used to adjust the engine management system, the throttle plate, turbocharger boost pressure and ignition. This electronic system takes the place of the traditional control technology via Bowden cable and offers significant advantages: e-gas simplifies electronic engine management, responds more quickly and is a technical prerequisite for the electronic stabilization program (ESP).

EBD

Electronic Brake-force Distribution (EBD) and the Anti-lock Braking System (ABS) constitute one unit inasmuch as they share a number of the same parts. EBD ensures maximum braking performance at the front and rear wheels, and under normal conditions it prevents the rear-end from braking away because of over-braking. The system also counteracts “fading” as a result of overheating.