Kia Cee'd: Smart Parking Assist System (SPAS) / Description and operation

Description
Operation procedure (Serial/parallel parking)
1.
Select the parking mode during checking the message on the instrument panel through operating the parking direction sub system switch (A).
Voice information: Select the parking mode. Pay attention to the surrounded obstacles.

2.
Search the parking lot during forwarding through the sensor on the side front of the vehicle (1 sensor is installed on each side)

3.
Attract to put the reverse gear (R ) when the parking space is found

4.
The steering wheel is operated when it is changed to reverse gear after stopping

5.
Change the gear according to the message on the instrument panel and voice information when the changing the gear to forwards/backwards is requested during steering. (Creation of beep sound: 150ms)

6.
The system is completed normally after marking the statement of completion and creating the beep sound. The driver shall finish to park the car by steering the wheel and moving the vehicle. (Creation of beeping sound: 600ms)

Operation procedure (Exit Mode)

System Components
1.
Switch
(1)
PAS switch (A) : PAS switch is to enable or disable the warning function of PAS function.

(2)
SPAS switch (A) : SPAS switch choose the parking mode.

(3)
LED indicator
 
Item
Condition
Description
PAS
ON
PAS is operating
OFF
PAS is not operating
Blink
System is under diagnosis or failure 
SPAS
ON
SPAS is operating
OFF
SPAS is not operating
Blink
System is coding error or failure or under diagnosis

(4)
Main features
The function of PAS automatic ON is applied during gear change to R
The function of PAS automatic ON is applied during SPAS switch is ON.
Only PAS is OFF when PAS switch is pressed during SPAS and PAS operation in the parking search mode.
Both of SPAS and PAS are OFF when PAS switch is pressed during SPAS and PAS operation in wheel steering mode.
SPAS and PAS are OFF and PAS is operated continuously when SPAS is pressed during operation.
(5)
Select the parking mode
Priority in mode selection (Europe LHD) : Parallely right → Parallely left→ Straightly to the right → Straightly to the left → OFF
SPAS mode is changed to OFF when parking mode selection switch is pressed more than 1.5 seconds.
The parking mode is selectable only in D & N (If vehicle speed over 5kph once) mode.
The gear position where the parking mode is not selectable: P, R.
2.
Warning sound from the instrument panel
(1)
The information related to the SPAS is displayed on the instrument panel during SPAS operation and PAS is displayed after finishing SPAS.
※ PAS is displayed after 4 seconds when SPAS system is released during SPAS operation and after 2 seconds after failure.
(2)
The position of obstacles is displayed on the instrument panel when only PAS is operated.
3 sectors for front and rear side are displayed respectively.
The alarming stage depending on the distance in each sector is displayed.
 
Distance from object
Warning indicator
Warning sound
Indicator display
When driving
forward
When driving
rearward
100cm ~ 61cm
Front

-
Buzzer beeps intermittently
Lighting
120cm ~ 61cm
Rear
-

Buzzer beeps intermittently
60cm ~ 31cm
Front

Buzzer beeps frequently
Rear
-
Buzzer beeps frequently
30cm less than
Front

Buzzer sounds continously
Rear
-
Buzzer sounds continously

When shifting the gear to the R (Reverse) position.
 
Condition
Warning indicator
Indicator display
Sensor fault

Blinking

3.
Alarming sound control
(1)
How to transmit the SPAS system alarming : Transmitting by using the cluster sound source chip
The cluster is controlled by using CAN communication in SPAS ECU.

Type of sound color: Realization of sound color in 3 frequency range (Front alarming, rear alarming and beep sound alarming)
The continuous alarming pattern is applied for the front and rear alarming.
(2)
Priority in order of front alarming/rear alarming/parking alarming/failure alarming
a.
1st priority : Beeping sound
The 1st : Failure alarming
The 2nd: Parking alarming
b.
2nd priority : Alarming sound depending on the distance
High level alarming sound has the priority out of the front and rear alarming
Rear alarming has the priority when the front and rear alarms are same level.
c.
Only one state is transmitted out of the beeping sound, front alarming and rear alarming according to the priority and the concurrent transmitting is not made.
(3)
Specification of transmitting the beeping sound for parking
 
Item
Warning sound conditions
Signal waveform
Beeping sound
(One time creation for each event)
SPAS/PAS Fault condition
Switch ON : T0 = 0ms
Shift to R : T0 = 500ms
When a fault occurs during SPAS/PAS operation : T0 = 0ms

T0(0 or 500ms), T1,T2(50ms),T3(500ms),T4(1500ms)
Shift to R

T0=500ms, Ton=300ms, Toff=100ms
SPAS parking complete

Ton=600ms, Toff=100ms
In case of displaying the message
"Shift to D" or "Shift to R" during SPAS operation.

Ton=200ms, Toff=100ms
In case of displaying the message
"Space found" during SPAS operation.

Ton=150ms, Toff=100ms
In case of displaying the message
"SPAS canceled" during SPAS operation.

Ton=600ms, Toff=100ms

(4)
Specification of controlling the front/rear alarming sound
 
Item
Warning sound conditions
Signal waveform
Remarks
Front alarming
OFF (No alarming state)
-
Continuous transmitting of corresponding CAN value during creation of each event(SPAS responding information)
The 1st alarming
(Long distance)

Ton =50ms, Toff=290ms
The 2nd alarming

Ton =50ms, Toff=120ms
The 3rd alarming
(Short distance)

Rear alarming
OFF (No alarming state)
-
The 1st alarming (Long distance)

Ton =50ms, Toff=290ms
The 2nd alarming

Ton =50ms, Toff=120ms
The 3rd alarming
(Short distance)


Schematic diagrams
Block Diagram Circuit Diagram ...

Smart Parking Assist System Unit Components and components location
Component ...

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