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Electronic Stability Program (ESP)
Through the stabilization system is controlled vehicle dynamics in limit conditions, for example, when cornering at high speed. The danger of demolition or skidding is reduced significantly under any condition of the road surface. The electronic stabilization system integrated anti-lock braking and traction control. ESP further measures the speed of rotation of a body about a vertical axis, the acceleration in the transverse plane, the pressure in the brake actuator and the steering angle. On the basis of data on steering wheel angle and vehicle speed, the system determines the direction in which the driver intends to drive the vehicle, and compares with the actual direction of motion. When the inconsistency of these factors when the car starts skidding, the system automatically brakes the stabilization of certain wheel. If a fault occurs electronic control system automatically shut down, while in the instrument cluster illuminated warning lights. In this case, the braking system is working normally.
| Fig. 15.1. Location car elements antilock brakes and electronic stability control (ABS / ESP): 1 - a hydraulic pump; 2 - the gauge of pressure in the braking system; 3 - pump relay J105 system Bosch 5.3; 4 - the electromagnetic valve relay J106 system Bosch 5.3; 5 - N55 hydraulic unit to the control unit J104; 6 - brake fluid level F34; 7 - a rotor front right sensor ABS; 8 - the front right sensor ABS G45; 9 - control unit J104 (with ESP); 10 - the switch for systems TCS / ESP E132; 11 - the gauge of the steering wheel angle G85; 12 - the switch of a control lamp of the parking brake status F9; 13 - rotor rear right sensor ABS; 14 - rear right sensor ABS G44; 15 - rear left sensor ABS G46; 16 - rotor rear left sensor ABS; 17 - lateral acceleration sensor G200; 18 - the gauge of the state of G202; 19 - pump relay J105 system Bosch 5.3; 20 - electromagnetic relay J106 system Bosch 5.3; 21 - a control lamp K118; 22 - a control lamp ABS K47; 23 - a control lamp parking brake status K14; 24 - a control bulb TCS / ESP - K86; 25 - the brake light switch F; 26 - a rotor front left sensor ABS; 27 - front left sensor ABS G47
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Location of ABS and ESP to the vehicle and the front axle is shown in Fig. 15.1 and 15.2.
| Fig. 15.2. Location speed sensor of the front wheel 1 - the bolt M14-115 Nm and tighten on 180 ?�, M16-190 Nm tighten and 180 ?�; 2 - clamping sleeve; 3 - seal; 4 - sensor ABS; 5 - the drive shaft to the rotor of gauge ABS
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