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102276 Pressure decrease 1. Vacuum servobrake - 2. Yaw sensor - 3. Steering angle sensor - 4. Longitudinal acceleration sensor - 5. EDC motor control unit - 6. ESP electronic control unit - 7. Intake solenoid valves - 8. Driving solenoid valves - 9. Scavenge pump control motor - 10. Scavenge pumps - 11. Single-acting safety valves - 12. Low pressure accumulators - 13. Quick pressure decrease single-acting valves - 14. Power supply solenoid valves - 15. Discharge solenoid valves - 16. Pressure sensor - 17. Single-acting valves - DX/A. Front axle right wheel sensor - SX/A. Front axle left wheel sensor - DX/P. Rear axle right wheel sensor - SX/P. Rear axle left wheel sensor If the sensors find that the wheel(s) tends to get locked, they will inform the control unit: the latter will reduce the braking power At the same time, the excess oil in low pressure accumulators “12” can be recovered by powering motor “9” which drives pumps Figura 46/9 51/13 HYDRO-PNEUMATIC SYSTEM - BRAKES D AILY Revi - February 2005 |