OEM: B014766
Applicable Models: X37
Product Name: Rear Parking Sensor B014766 for X37
Specifications: Black On Top, Gray On Bottom
Ⅰ Introduction
The parking sensor also called ""parking aid"", is mainly composed of ultrasonic sensors, controllers, and displays. It helps the driver ""see"" the invisible things in the rearview mirror, and inform the driver of the obstacles around the driver by sound or a more intuitive display. The parking sensor removes the trouble caused by the driver's front, rear, left, and right visits when parking, reversing, and starting the vehicle, and helps the driver to eliminate the defects of blind spots and blurred vision. The parking sensor also has certain blind spots, including too low and too thin obstacles and ridges.
Ⅱ Working principle of parking sensors
When backing the car, the parking sensor uses the principle of ultrasonic waves. The ultrasonic sensor installed on the rear bumper sends ultrasonic waves to the obstacle and reflects the sound wave, calculates the actual distance between the car body and the obstacle, and then prompts the driver to stop.
When the car is in R gear, the parking sensor will automatically start. Through the controller, the ultrasonic sensor at the rear bumper controls the ultrasonic emission. The ultrasonic wave is reflected by obstacles, and the ultrasonic sensor receives the reflected ultrasonic wave and sends it to the amplifier circuit. The ultrasonic sensor calculates the propagation speed in the medium by using the time from the transmission of the ultrasonic signal to the reception of the echo signal. The data is processed by the single-chip microcomputer, and then the distance and direction of the obstacle are displayed on the display to remind the driver to operate in time.
Ⅲ The main function of parking sensors
1 Accurately measure the distance between the rear of the vehicle and the nearest obstacle;
2 When reversing to the limit distance, a rapid warning sound can be issued to remind the driver to pay attention to braking;
3 Voice warning sounds can be repeated to remind pedestrians to pay attention.