Training hệ thống ESP của xe ô tô Hyundai Santafe CM
CMESP/ESC (Bosch 8) 2VariationLine-up (BOSCH 8 ABS/ESP)S: Standard, O: OptionGeneral M/East Europe Aust. USA/CanadaABSESP/ESCO(GL,GLS,LWB, SWB)O(GLS, LWB,SWB)O(GL,GLS,LWB)O(GLS, LWB, SWB)S(GL,GLS,LWB,SWB)Area 3COMPONENTS OF ESP SYSTEM 4VARIANT CODINGPerform the variant coding if there is a ESP OFF W/L on with a ‘C1702 (Variant Coding Error)’ after replacing a ECM,TCM or ESPCM. 5ConstructionHYDRAULIC CONTROL UNITSolenoid Valve (x12)Valve Coil (x12)Low Pressure Chamber Piston (x2)Pump (x2)MotorPressure SensorESPCM 6Prevent a pressure overshoot or undershoot → Control range decrease - Noise : Pulse-Up Noise decrease - Enhanced Pedal Feeling On/OffLFCPressur e Over shootPressur e UndershootSki d Pr essure∆PµSl i pLFC Cont r ol RangeOn/Of f Cont r ol RangeEffect of LFC (Linear Flow Control)LFC (Linear Flow Control) 7ACTUATION TESTPWM control PWM controlON/OFF control ON/OFF control 8HECUPressure sensorOperating conditionHYDRAULIC BRAKE ASSIST - over 30 bar - over 2,200 bar/sec - over 20 km/h 9INPUTS AND OUTPUTSPressure Sensor (HCU Built-in type) 10ACTIVE WHEEL SPEED SENSORMAX TYPICAL MINLOWER SIGNAL ILOW (mA) 5.9 7 8.4UPPER SIGNAL IHIGH (mA) 11.8 14 16.8SIGNAL RATIO IHIGH / ILOWOUTPUT SIGNALOPERATING FREQUENCYOPERATING DUTY1.85 or more1 ~ 2500 Hz30~70% Type: Hall Effect Output signal: Digital (Open Collector Type circuit integrated) Good characteristics against temperature variation and noise Low RPM Detection: 0 RPM can be detected Air gap sensitivity: stable output pulse against air-gap change-upplying power: DC 12V [...]... calibration : After SAS replacement or clock spring replacement 28 PRESSURE SENSOR Specification • Operating Voltage : 5± 0.25 V • Output voltage : 10% ~ 90% Vpwr • Operating Pressure : 0 ~ 200 bar • Response time : Max 10msec • Operational Temp : - 40℃ ~ 125 ℃ 29 . CMESP/ESC (Bosch 8) 2VariationLine-up (BOSCH 8 ABS /ESP) S: Standard, O: OptionGeneral M/East Europe Aust. USA/CanadaABSESP/ESCO(GL,GLS,LWB,. OF ESP SYSTEM 4VARIANT CODINGPerform the variant coding if there is a ESP OFF W/L on with a ‘C1702 (Variant Coding Error)’ after replacing a ECM,TCM