Hyundai Ioniq: Brake System / Specifications
Item
|
Specification
|
Front disc brake
| Type
| Ventilated disc
|
Disc O.D.
| Ø 280 mm (11.02 in)
|
Disc thickness
| 22 mm (0.87 in)
|
Caliper piston
| Single
|
Cylinder I.D.
| Ø 57.2 mm (2.25 in)
|
Rear disc brake
| Type
| Solid disc
|
Disc O.D.
| Ø 262 mm (10.31 in)
|
Disc thickness
| 10 mm (0.39 in)
|
Caliper piston
| Single
|
Cylinder I.D.
| Ø 33.18 mm (1.31 in)
|
Parking brake
| Type
| BIR (Ball-in-Ramp)
|
Actuation
| Lever
|
Specification (ESP)
Part
|
Item
|
Standard value
|
Remark
|
Integrated Brake Actuation Unit (IBAU)
| System
| 4 Channel 4 Sensor (Solenoid)
| Total control (ABS, EBD, TCS, ESC)
|
Type
| Valve relay integrated type
|
Operating Voltage
| 10 - 15V
|
Operating Temperature
| -40 - 120 °C (-40 - 248°F)
|
Active Wheel speed sensor
| Supply voltage
| DC 4.5 - 20V
|
|
Output current low
| 5.9 - 8.4 mA
|
|
Output current high
| 11.8- 16.8 mA
|
|
Output range
| 1 - 2500 Hz
|
|
Tone wheel
| Front: 46 teeth, Rear: 46 teeth
|
|
Air gap
| 0.4 - 1.5 mm
|
|
Pressure Source Unit (PSU)
| System
| 3 piston pump/ high pressure accumulator system
|
|
Operating Voltage
| 10 - 15V
|
|
Operating Temperature
| -40 - 120°C (-40 - 248°F)
|
|
Service Standard
Items
|
Standard value
|
Brake pedal Full stroke
| 137.0 mm ( 5.39 in)
|
Stop lamp switch clearance
| 1.0 - 2.0 mm (0.04 - 0.08 in)
|
Brake pedal free play
| 3 - 8 mm (0.12 - 0.31 in)
|
Front brake disc thickness
| 22.0 mm (0.87 in)
|
Front brake disc service limit
| 20.0 mm (0.79 in)
|
Front brake disc pad thickness
| 17.0 mm (0.67 in)
|
Front brake disc service limit
| 8.0 mm (0.31in)
|
Rear brake disc thickness
| 10.0 mm (0.39 in)
|
Rear brake disc service limit
| 8.4 mm (0.33 in)
|
Rear brake disc pad thickness
| 15.0 mm (0.60 in)
|
Rear brake disc service limit
| 7.0 mm (0.28 in)
|
Tightening Torques
Items
|
N.m
|
kgf.m
|
lb-ft
|
Tire wheel hub nut
| 107.9 - 127.5
| 11.0 - 13.0
| 79.6 - 94.0
|
Air bleeding screw
| 6.9 - 12.7
| 0.7 - 1.3
| 5.1 - 9.4
|
Brake tube flare nuts
| 13.7 - 16.7
| 1.4 - 1.7
| 10.1 - 12.3
|
Front caliper guide rod bolts
| 21.6 - 31.4
| 2.2 - 3.2
| 15.9 - 23.1
|
Rear caliper guide rod bolts
| 21.6 - 31.4
| 2.2 - 3.2
| 15.9 - 23.1
|
Front caliper assembly to knuckle
| 98.1 - 117.7
| 10.0 - 12.0
| 72.3 - 86.8
|
Rear caliper assembly to knuckle
| 63.7 - 73.5
| 6.5 - 7.5
| 47.0 - 54.2
|
Brake hose to caliper
| 24.5 - 29.4
| 2.5 - 3.0
| 18.1 - 21.7
|
Brake pedal member bracket bolts
| 16.7 - 25.5
| 1.7 - 2.6
| 12.3 - 18.8
|
Brake pedal mounting nut
| 12.7 - 19.6
| 1.3 - 2.0
| 9.4 - 14.5
|
Wheel speed sensor mounting bolt
| 7.8 - 11.8
| 0.8 - 1.2
| 5.8 - 8.7
|
IBAU bracket mounting bolts
| 10.8 - 12.7
| 1.1 - 1.3
| 8.0 - 9.4
|
IBAU Brake Tube Flare nuts
| 13.7 - 16.7
| 1.4 - 1.7
| 10.1 - 12.3
|
PSU Bracket mounting bolts
| 19.6 - 29.4
| 2.0 - 3.0
| 14.5 - 21.7
|
Lubricants
Items
|
Recommended
|
Quantity
|
Brake fluid
| DOT 3 or DOT 4
| As required
|
Brake pedal bushing and bolt
| Chassis grease
| As required
|
Parking brake shoe and backing plate contacting surface
| Heat resistance grease
| As required
|
High Voltage Shut-off Procedures
•
Be sure to read and follow the "General Safety Information and Caution" before doing any work related with the high voltage system...
Special Service Tools
Tool (Number and Name)
Illustration
Use
09581-2T100Piston expanderSpreading the front and rear disc brake piston...
Other information:
Description•
Motor temperature affects the motor power significantly.•
If the motor overheats, its main components, including permanent magnet, stator coil, etc., may be damaged, negatively affecting the operation of the drive motor...
Checking the Parking Brake
Check whether the stroke is within specification when the parking brake pedal
is depressed with 44 lb (20 kg, 196 N) of force. Also, the parking brake alone should
securely hold the vehicle on a fairly steep grade. If the stroke is more or less
than specified, have the parking brake adjusted by an authorized HYUNDAI dealer...
Categories
Air bag warning labels, required by the U.S. National Highway Traffic Safety
Administration (NHTSA), are attached to alert the driver and passengers of potential
risks of the air bag system. Be sure to read all of the information about the air
bags that are installed on your vehicle in this Owners Manual.
read more