Tổng quan hệ thống cân bằng điện tử ESP của HYUNDAI
Copyright by Hyundai Motor Company. All rights reserved.TQ ESP(MGH-40)www.oto-hui.com 2ESPApplication Area SystemGeneral Middle East Europe Aus.ABS Option Option Option OptionESP - - Option - 3ESPItem MGH 10 MGH 20 MGH 25 MGH 40ModelApplication LC, XD, SM GK, FC JM EN, TQMP year1999 (ABS)2000 (TCS)2001 (TCS)2003 (ABS)2004 (ESP)Aug. 2006 (ESP)Key Points On-Off valve controlLFC + MSC +PBA + MIRCLFC: Linear flow controlMSC: Motor speed controlPBA: Panic brake assistMIRC: Modified independent rear controlLFC + MSC + PBA + MIRC + ROPROP: Roll over preventionComparisonwww.oto-hui.com 4ESPItems ABS ESPHECU AssemblyWheel speed sensorYaw & lateral G-sensor -Pressure sensor - Built in typeSteering angle sensor -Longitudinal G-sensorComparison 5ESPESP Componentswww.oto-hui.com 6ESPComponents of HECUMGH-40 ABSMGH-40 ESPESPCMSolenoid ValvesValve BlockMotorPumpAccumulatorPressure sensorAccumulatorPumpValve BlockSolenoid ValvesMotorABSCMwww.oto-hui.com 7ESPOn/OffLFCPr essur e Over shootPr essur e UndershootSki d Pr essur e∆PµSl i pLFC Cont r ol RangeOn/Of f Cont r ol RangeLFC (Linear Flow Control)Features 8ESPMSC (Motor Speed Control)FeaturesRich brake oil flow in LPAPoor brake oil flow in LPAMotor RPM is low Motor RPM is highWheel PressureVehicle SpeedWheel SpeedBig DumpWheel PressureWheel SpeedSmall DumpVehicle Speedwww.oto-hui.com 9ESPMIRC (Modified Independent Rear Control)P_r1P_r2Pres RiseLimitationPres RiseLimitationMaster Pres.Gai n i n Br aki ng Pe r f o r manc eFeatures - Enhancement of braking performance - Independent pressure control according to rear wheel movement (for the vehicle safety, the control is limited : pressure difference RR vs. RL is less then 20 bar) - Application : ABS, ESPwww.oto-hui.com 10ESPROP (Roll Over Prevention)Features - Prevention of vehicle roll-over - Extended logic of ESP - Function inhibited when ESP OFF switch ON - Input : yaw rate, lateral G - Output : brake control, engine torque control - Application : ESPROP ON ROP OFF• Test vehicle: TUCSON • Test condition - on the dry asphalt - vehicle speed : 120~180km/hwww.oto-hui.com [...].. .ESP 11 Inputs & Outputs MGH-40 ESP Motor Pump WSS (4EA) Solenoid Valves Steering Angle Sensor EPS OFF Warning Lamp Yaw rate & Lateral G- sensor (CAN) Pressure Sensor Brake Switch ESP OFF Switch Longitudinal G- sensor (4WD only) ESP Function Lamp ABS Warning Lamp ESPCM EBD Warning Lamp K - line CAN Engine torque reduction request Gear... ABS/EBD /ESP OFF lamps turn on for 3 seconds and turn off : warning lamps and ABS /ESP systems are okay] 2 If ABS/EBD /ESP OFF lamps stay off ① Remove the ABS /ESP Connector ② IG key ON ③ ABS/EBD stays off warning lamp circuit error check the cluster & wiring ④ ABS/EBD stays on warning lamp circuit normal, ABS error diagnosis with HI-SCAN Caution during vehicle service 1 Remove the ABS /ESP connector... interrupt type www.oto-hui.com • Sensor output type : Open Collector Type • Output pulse quantity :45pulse (Pulse cycle 8°) • Supply voltage :IGN1(8~16V) STN • Output voltage :1.3≤VOL ≤2.0V, Photo diode (ST1,ST2, STN) 3.0≤VOH ≤4.1V ESP 15 Steering Angle Sensor Output signal ST1 ST1 www.oto-hui.com STN ST2 [ST1, ST2] [ST1, STN] ESP 16 Diagnosis & Troubleshooting Checking procedure before diagnosis Before diagnosis... Open/Short C2380 Leakage Current Checking Procedure 2 Check the Chassis GND & ESPCM GND : less than 10mΩ 3 Drives over 20kph Warning lamp ON check 1 Okay Replace the HECU Power supply Valve Relay Fuse Solenoid Valve 1 Check the valve relay power (BATT1) and fuse/wiring (10~16V) 2 Check the Chassis GND & ESPCM GND : less than 10mΩ ESP 18 Diagnosis & Troubleshooting CAN check Error Code C1616 C1611 C1612... ABS error diagnosis with HI-SCAN Caution during vehicle service 1 Remove the ABS /ESP connector before ECM or TCM work (if not, CAN related DTCs will be memorized on the ESPCM) 2 Before Remove the connectors, turn the ignition off ESP 17 Diagnosis & Troubleshooting Motor/Valve/Fuse check Error Code Fault Type Cause Motor Short to BAT/GND C2402 Power supply Motor Open Motor fuse Motor Fuse Open Defected... RATIO IHIGH / ILOW 1.85 or more OPERATING FREQUENCY 1 ~ 2500 Hz OPERATING DUTY 30~70% ESP 13 Yaw rate & Lateral G-Sensor • Power supply: 6.5~18V • Signal output: CAN interface • G sensor : -1.5~1.5g • Yaw sensor: -75~75°/sec CAN-Hi Vehicle Front CAN-Lo Yaw rate & Lateral G Sensor [Location] Longitudinal G [Output Signal] ESP 14 Steering Angle Sensor • Location: Inside steering wheel • Calculate the steering... are CAN related DTCs from ECM & TCM 1 Replace the HECU ESP 19 Diagnosis & Troubleshooting Pressure sensor check Error Code Fault Type Cause C1235 Sensor Open/Short Sensor circuit C1237 Sensor Signal Error Sensor Checking Procedure 1 Replace the HECU 1 Check if the brake light switch & brake switch & wiring is normal 2 If okay, replace the HECU ESP 20 Diagnosis & Troubleshooting Yaw rate & Lateral G... Function Lamp ABS Warning Lamp ESPCM EBD Warning Lamp K - line CAN Engine torque reduction request Gear hold request (TCM) Vehicle speed ABS Active Signal (4WD only) Wheel speed information (4WD only) ESP 12 Active Wheel Speed Sensor • Type: Active type (Hall effect) • Power supply: 12V • Air gap: 0.2~2.0mm • Frequency: 1~2,500Hz www.oto-hui.com OUTPUT SIGNAL • Possible to detect 0km/h • Not sensitive . -Longitudinal G-sensorComparison 5ESPESP Componentswww.oto-hui.com 6ESPComponents of HECUMGH-40 ABSMGH-40 ESPESPCMSolenoid ValvesValve BlockMotorPumpAccumulatorPressure. ABS, ESPwww.oto-hui.com 10ESPROP (Roll Over Prevention)Features - Prevention of vehicle roll-over - Extended logic of ESP - Function inhibited when ESP