Kia Optima: Advanced Driver Assistance System (ADAS) / Parking Distance Warning (PDW)
Specifications
| 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
| Component 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
| Description |
| • |
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
| Initial mode |
| 1. |
System initializing time
|
| 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.
|
| 6. |
IBU memorizes the completed initializing status of sensor. |
| Normal mode |
| 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. |
Surrount View Monitor (SVM) Switch
Schematic diagrams
Connector and Terminal Function
Pin
Function
Pin
Function
1
PAS mode switch
...
Parking Distance Warning (PDW) Sensor
Schematic diagrams
Circuit Diagram
Repair procedures
Removal
Parking Distance Warning-Forward
(PDW-F) Sensor
1.
Remove the front bumper assembly.
(R ...
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