Kia Optima: Advanced Driver Assistance System (ADAS) / Parking Distance Warning (PDW)
Specifications
Item
|
Specification
|
Ultrasonic sensor
|
Voltage rating
|
DC 12 V
|
Detecting range
|
30 - 120 cm (11.8 - 47.2 in.)
|
Operation voltage
|
DC 9 - 16 V
|
Operation current
|
MAX. 350mA
|
Operation frequency
|
48 ± 5 KHz
|
Number of sensors
|
8 units
|
Components and components location
1. Integrated body control unit
(IBU)
2. Parking distance warning-forward (PDW-F) sensor
|
3. Parking distance warning-reverse
(PDW-R) sensor
|
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.
|
• |
IBU decides the alarm level by the transmitted communication message
from the slave sensors, then operates the buzzer or transmits the data for
display.
|
Block Diagram
System Operation Specification
1. |
System initializing time
– |
PDW-F : IGN1+ initial D Gear + below 15 Km/h
|
– |
PDW-R : IGN1+ initial R Gear
|
|
2. |
PDW recognizes LID and sets the sensor ID up during initialization.
|
3. |
PDW activates each sensor and then executes the diagnosis after finishing
initialization of IPM(IBU).
|
4. |
PDW starting buzzer is normally worked, when sensor does not send an
error message and after finishing error diagnosis.
|
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 displayed.
Buzzer for sensor failure is operated once, but display is shown
continuously until it is repaired.
|
|
6. |
IBU memorizes the completed initializing status of sensor.
|
1. |
PDW-F : Lin communication starts and keeps the routine after IGN1 ON+D
gear + below 15 km/h.
PDW-R : Lin communication starts and keeps the routine after IGN1 ON+R
gear
|
2. |
After initializing, the routine starts at once without PDW starting warning
sound.
|
3. |
The obstacle alarm has 3 levels in 1, 2 and 3 step levels; alarms 1 and
2 have intermittent audible sounds, while alarm 3 has continuous audible
sound. For the front ultrasonic sensor level 1 alarm does not exist.
|
4. |
In display, the data of each sensor is sent from IBU to display, for
example cluster.
|
5. |
The efficient vehicle speed of PDW operation is under 10Km/h.
|
6. |
Operation doesn't start or stop in N or P gears.
|
Schematic diagrams
Connector and Terminal Function
Pin
Function
Pin
Function
1
PAS mode switch
...
Schematic diagrams
Circuit Diagram
Repair procedures
Removal
Parking Distance Warning-Forward
(PDW-F) Sensor
1.
Remove the front bumper assembly.
(R ...
Other information:
Components and components location
Component Location
1. Integrated central control
unit (ICU)
Description and operation
Description
Integrated Central control Unit (ICU) combines both Smart Junction Block (SJB)
and Integrated Gatew ...
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This system is designed to function above approximately 30 km/h (20 mph).
If the cruise control is left on, (CRUISE indicator light in the instrument cluster
ill ...