Contents Section: Mechanical - Hydraulic All sections

Brake System - General: Specifications Kia Optima II рестайлинг

Specifications

ItemSpecification
Master cylinder Type I.D. Piston stroke Fluid level warning sensorTandem type 23.81 mm (0.937 in)[CBS] 25.4 mm(1in)[ABS] 30 ~ 31 mm (1.18 ~ 1.22 in) Provided
Proportioning valve(CBS) Cut-in pressure(Split point) Decompression ratio35 kg/cm 2 (3.43 MPa, 497.8 psi) 0.32 : 1
Brake booster Type Boosting ratioVacuum 9 : 1
Front brake(Disc) Type Disc O.D. Disc I.D. Disc thickness Pad thickness Cylinder type Cylinder I.D.Floating type with ventilated disc 280 mm(11.02 in) 172 mm(6.77 in) 26 mm(1.02 in) 11 mm(0.43 in) Single piston Ø57.2 mm(2.25 in)
Rear brake(Disc) Type Disc O.D. Disc I.D. Disc thickness Pad thickness Cylinder type Cylinder I.D.Floating type with solid disc 262 mm (10.31 in) 185 mm (7.28 in) 10 mm (0.39 in) 15 mm (0.59 in) Single piston Ø34 mm (1.34 in)
Parking brake Actuation Type Drum I.D.Lever DIH (Drum in hat) 168 mm(6.61 in)

GENERAL SPECIFICATION

Note. ABS : Anti-lock Brake System CBS : Conventional Brake System

Specification(ABS)

PartItemStandard valueRemark
HECUSystem4 Channel 4 Sensor (Solenoid)
TypeABS + EBD
Operating Voltage10 ~ 16 V
Operating Temperature40 ~ 110 °C (-40 ~ 230°F)
Motor power210 W
Warning lampMin. Operating Voltage12 V
Max. Current consumption120 mA
Active Wheel speed sensor (ABS)Supply voltageDC 12 V
Output current low5.9 ~ 8.4 mA
Output current high11.8 ~ 16.8 mA
Output range1 ~ 2000 Hz
Tone wheel48 teeth
Air gap0.5 ~ 1.5 mm

ANTI-LOCK BRAKE SYSTEM SPECIFICATION

Specification(ESC)

PartItemStandard valueRemark
HECUSystem4 Channel 4 Sensor (Solenoid)Total control (ABS, EBD, TCS, ESC)
TypeMotor, valve relay integrated type
Operating Voltage10 ~ 16 V
Operating Temperature40 ~ 110 °C(-40 ~ 230°F)
Motor power270 W
Warning lampMin. Operating Voltage12 V
Max. Current consumption120 mA
Active Wheel speed sensor (ABS)Supply voltageDC 12 V
Output current low5.9 ~ 8.4 mATyp. 7 mA
Output current high11.8 ~ 16.8 mATyp. 14 mA
Output range1 ~ 2000 Hz
Tone wheel48 teeth
Air gap0.5 ~ 1.5 mm
Steering Wheel Angle SensorOperating Voltage9 ~ 16 V
Current ConsumptionMax. 100 mA
Operating Angular velocityMax. 1500 °/sec
Yaw rate & Lateral G sensorOperating Voltage8 ~ 17 V
Current ConsumptionMax. 140 mA
Output voltage0.5 ~ 4.5 V
Yaw rate sensor measurement range± 75 °/sec
Lateral G sensor measurement range± 14.75m/s

(ESC) SPECIFICATION

Tightening Torques

ItemN.mKgf.m
Proportioning valve to master cylinder34.3 ~ 53.93.5 ~ 5.5
Master cylinder to booster mounting nut12.7 ~ 16.61.3 ~ 1.7
Brake booster mounting nut12.7 ~ 15.71.3 ~ 1.6
Bleeder screw6.9 ~ 12.70.7 ~ 1.3
Brake tube nut, brake hose13.7 ~ 16.61.4 ~ 1.7
Caliper guide rod bolt21.6 ~ 31.42.2 ~ 3.2
Rear caliper mounting bolt 49.0 ~ 58.85.0 ~ 6.0
Front caliper mounting bolt78.5 ~ 98.18.0 ~ 10.0
Brake hose to front caliper24.5 ~ 29.42.5 ~ 3.0
Brake pedal member assembly bracket mounting nut (cowl side upper mounting)16.7 ~ 25.51.7 ~ 2.6
Brake pedal mounting nut24.5 ~ 34.32.5 ~ 3.5
Stop lamp switch mounting nut7.9 ~ 9.80.8 ~ 1.0
Wheel speed sensor mounting bolt6.9 ~ 10.80.7 ~ 1.1
HECU mounting bracket bolt16.7 ~ 25.51.7 ~ 2.6
HECU union screw11.8 ~ 15.71.2 ~ 1.6
HECU bracket mounting nut5.9 ~ 9.80.6 ~ 1.0
Yaw rate & Lateral G sensor mounting bolt4.9 ~ 7.80.5 ~ 0.8

TORQUES SPECIFICATION