Intuitive Parking Assist System

PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: SYSTEM DIAGRAM










SYSTEM DESCRIPTION

1. GENERAL

(a) This system uses ultrasonic sensors to detect obstacles at the rear of the vehicle. The system then informs the driver of the approximately distance between the sensors and the obstacles by sounding a buzzer.

2. FUNCTIONS OF COMPONENTS





* *1: for Automatic Transmission

* *2: for Manual Transmission

3. OPERATION EXPLANATION

(a) The clearance warning ECU determines whether the Intuitive parking assist system should operate or not based on the back sonar switch on/off status and the shift lever position.

(b) When the system operates, the clearance warning ECU transmits ultrasonic waves from the ultrasonic sensor. If an obstacle is detected within a sensor's detection range, the waves are reflected back to the sensors. The sensor then transmits a signal to the clearance warning ECU. Based on this information, the clearance warning ECU sends signals to the clearance warning buzzer. The approximate distance between the vehicle and the obstacle is then communicated through different types of buzzer sounds.

HINT
Refer to "Operation Check" for detailed operation Operation Check.

4. NOTE FOR INTUITIVE PARKING ASSIST SYSTEM

(a) Under the following conditions, the ultrasonic sensor may not operate properly.

(1) Foreign matter such as snow or mud is on sensor (the detection function returns to normal if foreign matter is cleared away).

(2) The sensor is frozen (the detection function returns to normal if defrosted).

HINT
Especially in cold weather, the sensor may not be able to detect obstacles if it is frozen or otherwise affected by the weather.

(b) The detection range of the ultrasonic sensor may be affected by the following conditions:

(1) Foreign matter such as snow or mud is on the sensor.

(2) In very hot or cold weather.

(c) Under the following conditions, the Intuitive parking assist system may detect an error.

(1) Another vehicle's horn, motorcycle engine sounds, an approaching vehicle's air brake sound, or other things that generate ultrasonic waves are near the vehicle.

(2) The vehicle gets caught in a downpour, or mud or water splashes onto the vehicle's body.

(3) The vehicle is severely tilted.

(4) The vehicle is equipped with a commercial fender pole.

(5) Foreign matter such as snow or mud is on the sensor.

(6) A vehicle equipped with a sonar system is in the vicinity.

(7) The vehicle is equipped with a towing hook.

(d) The Intuitive parking assist system cannot detect the following objects:

(1) Thin objects like wires, ropes or poles.

(2) Materials that easily absorb the ultrasonic waves such as cotton, snow, etc.

(3) Objects with sharp edges.

(4) Short objects.

(5) Tall objects with a protruding or overhanging upper part.

(e) Other conditions

(1) The sensor cannot detect an object under the bumper. Also, the sensor may detect an object and then lose track of the object if: 1) the object starts out in the detection range and then ends up below the sensor, or 2) the object is a thin pole, such as a picket.

(2) The sensor may be unable to detect objects when the sensor is too close to the objects.

(3) The sensor may not operate properly if it is dropped or subjected to a strong impact.