Kia Stinger: Body Electrical System / Around View Monitor (AVM)

Kia Stinger CK 2018-2020 Service Manual / Body Electrical System / Around View Monitor (AVM)

Components and components location
Components

  

1) AVM unit basically transmits data via C-CAN only.

Steering wheel angle sensor : C-CAN

Vehicle speed sensor : C-CAN

2) It functions as a gateway of C-CAN ↔ MM-CAN in cluster.

e.g. The signal of unit using MM-CAN is transmitted after converting to C-CAN in cluster.

User menu option : Cluster (AVN monitor, MM-CAN)

Transmission : TCU

PDW sensor : IBU

Component Functions

No.
Components
Quantity
Major Role
1
AVM Unit
1

Input video information from 4 channel cameras and process display

Vehicle communication (CAN) and system control

Screen output in 8 view modes

2
Ultra optical camera
(190 degrees)
4

Record vehicle's surrounding area

3
AVN Head Unit
1

Provide driver with video via AVM ECM output

Send user input data to AVM ECU

4
AVM Switch
1

Input video feed in Front Mode


Description and operation
Description

Surround View Monitor (AVM) allows video monitoring of 360 degrees around the vehicle. The system consists of 4 ultra optical cameras mounted around the vehicle (front, both sides and rear).

The video images from these cameras are applied with distortion compensation, time point conversion, and video merging technologies to provide sky-view image of the vehicle's surrounding area, as well as various other view modes.

The AVM System provides video feed of the vehicle's surrounding area while parking or during low speed driving to the driver to enhance safety and driver's convenience.

Also, it features steering wheel synchronized guide line indication, front and rear object warning, and A/S (including In-Line) tolerance compensation.

This system displays the video images from ultra optical cameras mounted on 4 sides of the vehicle, on the Head Unit Screen. It shows 360 degrees sky-view image of the vehicle's arounding area, as well as various other view modes.

Major Features
1.

Display Surrounding Area of Vehicle in Video

The surrounding area video display function displays 360 degrees video image captured from four cameras on the Head Unit Screen while the vehicle is moving at low speed or reversing. The AVM System displays total 8 video modes for displaying surrounding video based on the vehicle driving state and the driver's selection.

2.

Guide Line Indication & Steering Wheel Synchronized Feature

The Guide Line Indication & Steering Wheel Synchronized Feature is the function that assists the driver in parking by synchronizing the steering wheel with the rear view video display marked with a guide line to help anticipate the direction of the reversing vehicle.

3.

Front/Rear Object Warning (Obstacle Detection Feature)

The system receives obstacle warning signal from the PDW or PA sensors mounted on the front/rear of the vehicle and displays the obstacle location on the AVN Head Unit Screen.

4.

Tolerance Compensation (including A/S)

Manual Tolerance Compensation Software is embedded in the AVM ECM to compensate the AVM deviation that may occur due to assembly line installation tolerance. You must first setup proper work environment in order to perform correct tolerance compensation.

Main Features

No.
Main Features
Detailed Description
Notes
1
8 Display View Modes

4 Front & 4 Rear Display View Modes

Merged Video Display of 8 Modes
2
Front Assist Mode Selection Feature

Display only the Front Mode by using the Front Mode Selection Switch

Same as the PDW AVM Switch
3
Rear Steering Synchronized Parking Guide Line Display

Displays Parking Guide Line by synchronizing with the steering wheel when going reverse.

Display over the Rear Video
4
PDW Obstacle Indication

Display obstacle warning from rear and front PDW

Display both on the Cluster and the Head Unit
5
User Setting Option

Select Steering Wheel Synchronized Guide Line Indication  

Select Front/Rear Obstacle Indication

Select Initial Front/Rear View Screen

Provides additional screen settings
6
Assembly Line & A/S Tolerance Compensation Feature

Compensation - Tolerance Compensation for camera installation deviation and assembly line tolerance is required

Compensation function recognition logic applied

AVM Mode Entry Conditions

The vehicle information is accessed regularly, even after entering AVM mode. When the conditions are met, conversion from front mode to rear mode is available, and vice versa.

When the mode is converted, the view displayed on the screen can be the initial view or the previous view depending on the conditions.

If the mode for conversion is the initial entry, the default view is selected based on the front or rear. If a continuous front-rear conversion mode occurs as forward and backward movement are repeated for parking, the previous view is recalled and displayed.

Initial Entry : When the rear and front view modes in AVM mode are displayed on the screen for the first time.

Re-entry: When switching from AVM mode to another mode, without turning off AVM, and returning to the previous mode

(e.g. Rear → Front → Rear: Re-enter rear mode / Front → Rear → Front: Re-enter front mode)

Switch mode
Vehicle speed
Gear
AVM Switch
Display view
Rear → Front
Below 20 km/h
R Range or P Range excluded
ON
Initial Entry: Front view set in the initial view mode option
Re-entry: The last view mode displayed in the previous front mode
Front → Rear
Irrelevant
Reverse Gear
Irrelevant
Initial Entry: Rear view set in the initial view mode option
Re-entry: The last view mode displayed in the previous rear mode

AVM Mode Disengagement

If the conditions below are satisfied while in AVM mode, the AVM is turned OFF and no video is displayed.

OFF Mode
Vehicle speed
Gear
AVM Switch
Notes
Front mode
Over 20 km/h
R Range or P Range
OFF
If any of the three conditions is satisfied
Rear mode
Irrelevant
Except R gear
Irrelevant
If any of the two conditions is satisfied

AVM Options

Considering the user's convenience, the AVM provides three options for the user to select from.

The window for changing options (parking guide settings) is displayed on the AVN. Only the changed options are forwarded to the AVM unit through M_CAN.

These three options are applied as soon as they are selected by the user. Based on the conditions, the initial views displayed are as follows.

Option
Function
Default setting
Guideline steering interlocking
Interlocks with steering to display the driving direction of the vehicle during parking.
Classification code
Close range warning indicator
Indicates front and rear obstacle detection
Classification code
Initial view mode setting
Default view displayed when entering AVM mode
Front + Around view
Rear + Around view

Operations for Guideline Steering Interlocking Indications

The guideline for steering interlocking trace is indicated by using the value of steering wheel angle periodically received by AVM unit via C-CAN.

A combination of the rear area that displays 130 degree image of the rear mode (two-split mode) and the expected car movement trace displayed on the wide view is displayed.

1.

View modes for guideline steering interlocking indications

Mode
View
Applied area
Notes
Rear
Around view + rear
Rear image (two-split mode)

Left rear + rear
Rear image (two-split mode)

Right rear + rear
Rear image (two-split mode)

Rear wide view
Wide view image


2.

Specifications for guideline steering interlocking trace lines

Description
Number
Distance
Color
Steering wheel interlocking trace lines

0.5 m
Red

1.0 m
Yellow

3.0 m
Yellow

Vehicle left side end + 0.3 m
Red + Yellow

Vehicle right side end + 0.3 m
Red + Yellow
Neutral trace line

3.0 m
Blue
Around views mode trace lines

Around View + 0.3 m
Yellow

Yellow

Schematic diagrams

AVM System Input/Output

1.

Camera input

Item
Specification
Lens angle of view
190 degrees
Angle of view
Horizontal
186 degrees
Vertical
135 degrees
Function
Provides the original image of the wide angle image
(no additional function)
Application location
Same camera applied to the front, rear, left and right

2.

AVM image output

The AVM unit carries out distortion compensation and video merging on the image from 4 cameras installed around the vehicle, indicates steering interlocking guidelines and others, and sends the output in analog.

3.

AVM switch

When the switch is ON, this is used as a control input signal that operates the front view mode.

4.

Ignition input

The AVM unit displays images only when IGN2 ON. With IGN2 OFF, it is in AVM OFF state, and limits image output.

AVM unit uses signal input from IGN pin or M_CAN communication to determine whether IGN2 is ON or OFF.

5.

Output switch indicator lamp

AVM units sends output power in PWM waves from the LED located in the AVM switch to show the user that the switch is pressed.

6.

Input chassis CAN (C_CAN)

The AVM unit uses C_CAN to receive information about the vehicle's condition and to decide whether to carry out main AVM operations.

7.

Multimedia CAN input/output (M_CAN)

M-CAN signal is changed to C-CAN signal by IGPM (routing function or central gateway) and then AVM unit can use this C-CAN signal.

M_CAN is used to communicate with ICU to send and receive the following information.

Send AVM mode conversion requests for AVM output images (e.g. Navi mode→AVM mode)

Send requests for user AVM view conversion

Send compensation coordinates for tolerance compensation

Send warning messages to be displayed on the AVN

Send any user option changes

Repair procedures
Inspection

Tolerance Compensation

Tolerance compensation compensates for the error margins of around view video that occur due to the installation tolerance when the four cameras that comprise the SVM system are installed.

Tolerance compensation must be carried out when the following actions are performed:

When removing and installing a wide camera.

When conducting a body task such as the trunk task that causes the focus of the wide camera to change.

When replacing the door mirror with a wide camera.

When replacing the around view monitor unit.

Tolerance Compensation Environments

The Procedure of Manual Tolerance Compensation

1.

Prepare in advance as below.

Confirm that the car hood, trunk and doors are closed.

Close the door after getting in on the driver side.

Switch the ignition to "IGN".

Unfold all side mirrors.

Shift the gear to N.

Check the flashing state of LED indicator lamp in the SVM switch.

During the advance preparation, do not install exhaust inhaler or other equipment that may block the view of rearview cameras.

Also, as exhaust fume may block the rearview image, blow off the smoke by using a fan before performing tolerance compensation with IGN ON.

Engage foot brake or electronic parking brake (EPB) to hold vehicle in place.

2.

Before entering tolerance compensation mode, to check normal operation of SVM ECU and cameras, perform the following.

Check that initial setting screen of SVM is displayed. (Front view image + around view image when shifted to N)

Check that front, rear, left and right images of around view monitor are properly displayed.

If images are properly displayed, enter tolerance compensation mode. Otherwise, if images are abnormally displayed or are not displayed, replace relevant part.

3.

Install two compensation scales, two compensation reference line boards, and four compensation target boards around the vehicle by referring to the manual provided with the tools.

  

Align centers of front wheels to "B-type" on the compensation reference line board.

Accurately set the location (distance/angle) of the center of white and black compensation board as this is the reference point.

Front/rear and left/right alignment error margin should be below 1.18 in. (3 cm)

Rotation error margin when aligning vehicle should be within 1° to left/right.

4.

Maintain ignition "ON" with vehicle stopped, check that the gear is in P, and engage parking brake even on flat ground.

5.

Perform work with SVM switched "ON".

6.

Connect the KDS to vehicle.

7.

Select vehicle model and system.

8.

Enter additional function in KDS.

9.

Perform SVM manual tolerance compensation as shown on KDS diagnostic device.

  

When "SVM tolerance compensation - Manual" is clicked on the KDS diagnostic device screen, the SVM switch indicator lamp will flash.

  

Before matching calibration points: "+" green light flashes

When clicking [OK] after matching calibration points: "+" red light ON

Match four frontal calibration points, and then perform calibration in the order from rear → left → right.

10.

To confirm completion of calibration, check the vehicle and calibration line on AVN monitor and click [OK].

If calibration has not been properly performed, click [Cancel] and reenter calibration points.

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