Automatic window opening device for car falling into water and control method

Abstract

The invention provides an automatic window opening device for a car falling into water and a controlling method, and belongs to the technical field of cars. The automatic window opening device solves the problem of accurately judging the situation and automatically opening the window of the car when the car falls into water. The device includes a power source, a window actuating element, an ECU (Electronic Control Unit) controller, a hydraulic pressure sensor assembly used for detecting water pressure signals applied to a car door, and several acceleration sensors used for detecting inertial impact force of the car body falling into water. The hydraulic sensor assembly and the acceleration sensors are connected with the input end of the ECU controller respectively, and the output end of the ECU controller is connected with the window actuating element. When values of the water pressure signals applied to the car door and the inertial impact force signal applied to the car body falling-in-water are greater than the threshold values, the fact that the car falls into water is confirmed and a control signal is output to the window actuating element. The method comprises the following steps: step A, sampling the signals; step B, outputting the control instruction of opening the window when an effective signal I and an effective signal II occur at the same time; step C, holding still in other conditions; and step D, initiating the window opening action. Through the device and the method, the situation that the car falls into water is accurately judged, and the window can be automatically opened.

Description

technical field [0001] The invention belongs to the technical field of automobiles, and relates to an automatic opening device and a control method for a sunroof of a vehicle falling into water. Background technique [0002] In automobile design, the connection point between the human body and the thigh to the span point is referred to as H point in English, which indicates the position of the midpoint of the span point joint in the car after the driver is seated. The H point of the car is the reference point of the car's interior size. The height of the H point measured has been determined to be the definite point due to the installation of the seat in the used finished car. [0003] When a vehicle falls into water in a traffic accident during driving, the electronic equipment fails due to a power outage after the car falls into the water. There are also many self-rescue devices for vehicles that automatically unlock the doors and open the windows when the vehicle falls int...

AI Technical Summary

Problems solved by technology

The device and its control method solve the problem of how to accurately judge and automatically open the sunroof when the vehicle falls into the water

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