Hyundai Palisade: Parking Distance Warning (PDW) / Description and operation
• |
PDW consists of 8 sensors (front : 4 units, rear : 4 units) that are
used to detect obstacles and transmit the result in three separate warning
levels, the first, second and third to IBU via LIN communication.
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• |
IBU decides the alarm level by the transmitted communication message
from the slave sensors, then operates the buzzer or transmits the data
for display.
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Block Diagram

System Operation Specification
1. |
System initializing time
– |
PDW-F : 500ms after IGN1+ initial D Gear + below 10 Km/h
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– |
PDW-R : 500ms after IGN1+ initial R Gear
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2. |
PDW recognizes LID and sets the sensor ID up during initialization.
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3. |
PDW activates each sensor and then executes the diagnosis after finishing
initialization of IPM(IBU).
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4. |
PDW starting buzzer is normally worked, when sensor does not send an
error message and after finishing error diagnosis.
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5. |
If any failure is received from the any sensors, PDW starting buzzer
does not work but the failure alarm is operated for a moment.
If you have display option, warning sign is also shown on it.
Buzzer for sensor failure is operated once, but display is shown
continuously until it is repaired completely.
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6. |
IBU memorizes the completed initializing status of sensor.
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7. |
PDW-F : Lin communication starts and keeps the routine after IGN1 ON+D
gear + below 10 km/h.
PDW-R : Lin communication starts and keeps the routine after IGN1 ON+R
gear
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8. |
After initializing, the routine starts at once without PDW starting
warning sound.
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9. |
Alarms of obstacle consists of 3 level 1,2,3 step and 1,2 alarm sounds
intermittently and 3 alarm sounds continuously. 1 level alarm doesn't
exist in the front ultrasonic sensor.
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10. |
In display, the data of each sensor is sent from IBU to display, for
example cluster. CAN communication is used for transmission and maximum
gateway time is 50ms.
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11. |
The efficient vehicle speed of PDW operation is under 10Km/h.
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12. |
Operation doesn't start or stops at gear N, P.
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Sensing Area
Level
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Distance range
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Allowed range
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1
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Front : 61 - 100 cm (24.02 - 39.37 in.) / Rear : 61 - 120 cm (24.02 - 47.2
in.)
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± 15 cm (5.90 in.)
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2
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31 - 60 cm (12.20 - 23.62 in.)
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± 15 cm (5.90 in.)
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3
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0 - 30 cm (0 - 11.81 in)
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± 10 cm (3.94 in.)
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*Measurement condition : PVC pipe - Diameter 75 mm (0.0394 in.), length 1 m
(39.37 in.), at normal temperature
Display Alarm Indicator Specification

Component Location
1. IBU (Integrated Body Control
Unit)
2. Parking distance warning sensor
※ Parking Distance Warning function is built in IBU (Integrated Body Control
Unit)...
Schematic diagrams
Schematic Diagrams
Repair procedures
Removal
1.
Remove the bumper cover.
(Refer to Body - "Front Bumper Cover")
(Refer to Body - "Rear Bumper Cover")
2...
Other information:
Components and components location
Components
1. Strut assembly
2. Spring lower pad
3. Dust cover
4. Coil spring
5. Spring upper pad
6. Bumper rubber
7. Insulator assembly & sturt bearing
8. Lock nut
9...
C..
Categories

The SRS consists of the following
components:
1. Driver's front air bag module
2. Passenger's front air bag module
3. Side air bag modules
4. Curtain air bag modules
5. Retractor pre-tensioner
6. Air bag warning light
7. SRS control module (SRSCM)/
Rollover sensor
8. Front impact sensors
9. Side impact sensors
10.Side pressure sensors
11. Occupant classification system
12. Driver’s knee airbag module
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