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Advanced Parking Guidance System











PARK ASSIST / MONITORING: ADVANCED PARKING GUIDANCE SYSTEM: SYSTEM DIAGRAM










PARK ASSIST / MONITORING: ADVANCED PARKING GUIDANCE SYSTEM: SYSTEM DESCRIPTION

1. GENERAL

(a) The parking assist ECU uses vehicle condition signals from the spiral with sensor cable sub-assembly, power steering ECU, skid control ECU, power management control ECU, etc. to make calculations and estimates. These results are used to make various guidelines, which are combined together with video from the rear television camera, and output to the navigation receiver assembly. Also, control signals are output to each ECU and the advanced parking guidance system various controls are performed.

(b) This system has a rear television camera assembly mounted on the back door to display an image of the area behind the vehicle on the navigation receiver assembly display. The display panel also shows a composite view consisting of the area behind the vehicle and parking guidelines to assist the driver in parking the vehicle by monitoring the area behind the vehicle.

(c) This system is equipped with a self-diagnosis system, which is operated on a designated window that appears on the display panel, just as in the navigation system.

2. FUNCTION OF COMPONENTS

(a) The parking assist ECU controls the system by using information from the following components.





3. OPERATION EXPLANATION

(a) The parking assist ECU receives the camera activation information from the navigation receiver assembly. Then, the parking assist ECU switches the display signal for the navigation receiver assembly from the navigation system to the advanced parking guidance system.

4. PRE SUPPORT FUNCTION

(a) Function Description

(1) A pre support function is provided to assist the driver with initial positioning of the vehicle when backing-in mode or parallel parking mode operation is used.

(b) Pre Support Function Operation Condition

(1) For the pre support function, when the advanced parking guidance system is operating normally (no DTCs are stored) and the following conditions are met, pressing the parking assist pre support switch changes the image displayed on the screen and pre support operation starts.









* *1: A tone sounds when the screen transfers.

(c) Backing-in Mode Operation





(1) Press the parking assist pre support switch before the target parking space to turn on the pre support function (backing-in mode).

(2) Drive the vehicle slowly while keeping a distance of approximately 1 m (3.3 ft.) from and perpendicular to the target parking space or vehicles around the target parking space. When the ultrasonic sensor (No. 1 ultrasonic sensor) detects an available parking space, start to turn the steering wheel from the straight ahead position when the tone sounds.

HINT
* An available parking space may not be detected by the ultrasonic sensor (No. 1 ultrasonic sensor) depending on the distance between the vehicle being parked and the target parking space or vehicles around the target parking space, vehicle orientation and vehicle speed.
* A target parking space may not be detected by the ultrasonic sensor (No. 1 ultrasonic sensor) depending on the conditions around the target parking space. For details, refer to Precautions for the parking space detection sensor Advanced Parking Guidance System.
* When the ultrasonic sensor (No. 1 ultrasonic sensor) cannot detect a target parking space, a tone will not sound.
(3) Drive the vehicle while turning the steering wheel and when the vehicle reaches the support start position (the tone will sound twice), stop the vehicle, return the steering wheel to the straight ahead position, and move the shift lever to R.

(4) When the advanced parking guidance screen is displayed, the target parking frame will also displayed for the target parking space that is detected by the ultrasonic sensor (No. 1 ultrasonic sensor) during the pre support function operation.

(d) Parallel Parking Mode Operation





(1) Press the parking assist pre support switch before the target parking space to turn on the pre support function (parallel parking mode).

(2) Drive the vehicle slowly while keeping a distance of approximately 1 m (3.3 ft.) from and parallel to the target parking space or vehicles around the target parking space to allow the ultrasonic sensor (No. 1 ultrasonic sensor) to start detection.

HINT
* For parallel parking mode, a tone will not sound when the ultrasonic sensor (No. 1 ultrasonic sensor) detects the available parking space.
* An available parking space may not be detected by the ultrasonic sensor (No. 1 ultrasonic sensor) depending on a distance between the vehicle being parked and the target parking space or vehicles around the target parking space, vehicle orientation and vehicle speed.
* A target parking space may not be detected by the ultrasonic sensor (No. 1 ultrasonic sensor) depending on the conditions around the target parking space. For details, refer to Precautions for the parking space detection sensor Advanced Parking Guidance System.
(3) Drive as is and stop the vehicle when the vehicle reaches the support start position (the tone will sound twice), and move the shift lever to R.

HINT
When the ultrasonic sensor (No. 1 ultrasonic sensor) cannot detect a target parking space, the tone will not sound.

(4) When the advanced parking guidance screen is displayed, the target parking frame will also be displayed for the target parking space that is detected by the ultrasonic sensor (No. 1 ultrasonic sensor) during the pre support function operation.

5. COMMUNICATION SYSTEM OUTLINE

(a) The components of the advanced parking guidance system communicate with each other through the AVC-LAN. The parking assist ECU judges the vehicle angle data transmitted via the AVC-LAN from the navigation receiver assembly (the data is calculated by the navigation receiver assembly by integrating the yaw rate of the gyro sensor built into the navigation receiver assembly).

(b) If a short circuit or open circuit occurs in the AVC-LAN, communication is interrupted and this system will stop functioning.

6. DIAGNOSTIC FUNCTION OUTLINE

(a) This advanced parking guidance system has a diagnostic function displayed in the navigation receiver assembly. This function enables the calibration (adjustment and verify) of the advanced parking guidance system Calibration.

(b) The advanced parking guidance system can check the following items by using the Techstream.




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