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Automotive glossary: What is an Electronic Stability Control or Electronic Skid Protection? (Abbr.: ESC)

Definition of Electronic Stability Control: When a car drives too fast and/or with too much acceleration in a bend, it tends to oversteer (the rear drifts toward the outside) or to understeer (the car drifts to the outside over the front wheels). ESC now tries to prevent the car from breakaway when driving in such extreme areas, and possibly becomes uncontrollable consequently. For this purpose, single wheel are being slowed down specifically, depending on the kind of system also the engine output restricted, to restore driving stability. Prerequisites are proper brake systems for every wheel and a permanent comparison of the nominal value (steer angle sensor) with the actual values (e.g. Speed sensors of the ABS).

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