슬라이드 제목 없음 Anti Lock Brake System (Aero Bus) Learning Goals (You Can ) Understand Characteristics of the Anti Lock Brake System State Control Logic Understand how ABS Components are controlled[.]
Anti - Lock Brake System (Aero Bus) Learning Goals (You Can…) Understand Characteristics of the Anti-Lock Brake System State Control Logic State input and output element of the system Understand System Layout and Location Understand how ABS Components are controlled, operated and checked Read trouble codes with/without Hi-Scan Pro Troubleshoot Repair ABS Table of Contents Characteristics ABS General System Layout Components Description Diagnosis Schematic Diagram Characteristics Exercise What is the characteristics of the ABS? Discuss your opinion in the group and make a note of the most important items Stability Steerability Shorter emergency brake distance Drastic reduction of vehicle accidents Tire protection by avoiding brake flats, thus longer tire service time Advertising effect, e.g for tourist coaches ABS General Wheel Behavior During an ABS Event V VFF:: vehicle vehicle reference reference speed speed •• Emergency Emergency brake brake 50 50 km/h km/h (t: (t: 2.5s) 2.5s) •• Asphalt Asphalt wet wet •• Front-axle Front-axle wheel, wheel, left left ch) •• System System configuration configuration IRM IRM (4 (4ch ) •• CV CV empty, empty, leaf leaf spring spring suspension suspension V VRR:: braked braked tire velocity b: b: wheel wheel acceleration acceleration : : slip slip P Pll:: chamber chamber pressure pressure PCM state state ABS General Exercise A How To Calculate Slip Ratio ? B SLIP RATIO = A-B A A : Vehicle speed B : Wheel speed x 100 ABS General Brake force coefficient µB as function of brake slip Maximum Brake Force Utilization ABS General Exercise : Diagram of Input / Output Please fill out input and output element on the block diagram Front Left Wheel Speed Sensor Pressure Module Valve Front Right ASR Valve Rear left Rear Right ECU Warning Lamp ASR Information Indicating Battery ( + ) Self Diagnosis Initiate Line Valve Relay Self Diagnosis System Layout Exercise Please write correct components name on the diagram Brake Cylinder Wheel Speed Sensor Brake Cylinder Service Brake System Brake Relay Valve ABS/ASR Control Unit Sol V/V Pressure Module Valve Wheel Speed Sensor Brake Cylinder Brake Cylinder Air Reservoir Check Valve Wheel Speed Sensor System Layout Aero City Pressure Control Valve ASR Valve Wheel Speed Sensor