KR19980026603A - Muffler skid prevention device when parking - Google Patents

Abstract

The present invention relates to a muffler skid prevention device when parking, the conventional vehicle muffler device is a problem that the muffler collides with the jaw of the head when the vehicle is retracted due to parking, etc., there is a problem that the rear bumper of the vehicle The sensor protection door 30 is installed on the upper side to automatically open and close according to a signal, and the ultrasonic sensor 10 is installed on the inside thereof so that the obstacle 160 which may damage the muffler 20 when the vehicle is reversed. The controller 70 automatically controls the sensor protection door 30 according to the signal of the reverse gear switch 120, and the controller 70 brakes according to the signal of the ultrasonic sensor 10. Installed and configured to control the operating actuator 90 and the warning sound generating device 80 to automatically generate a braking and warning sound when an obstacle that can damage the muffler is detected when the vehicle is reversed. To open the driver has an effect that allows you to warn them.

Description

Muffler skid prevention device when parking

The present invention relates to a muffler skid prevention device during parking, and in particular, to prevent the muffler caught on the chin of the head when the vehicle is reversed and damaged, when the ultrasonic sensor detects an obstacle when the vehicle reverses, it generates a braking and warning sound. The present invention relates to a muffler skid prevention device that prevents the muffler from being damaged by warning a driver's driving.

In general, driving for parking a car requires precise steering and careful backwards due to the narrow space and narrow field of view of the car, but often the muffler of the car is struck by obstacles such as the jaw of the dog, which is corroded by damage and heavy friction. Mufflers often generate noise in the muffler plate, causing noise.

In particular, the muffler installed in the lower end of the vehicle is called a muffler, and when the combustion gas of the engine is sent out directly, the sound is generated. Therefore, the muffler is used to reduce the noise and to remove the noise. A method of removing noise by installing an expansion chamber in the middle and attenuating sound by using sound wave reflection or resonance phenomenon between inner walls or inserting a sound absorbing material (glass sound) to reduce acoustic energy by friction with sound waves in the passage of exhaust gas is used. It is also called a silencer.

Therefore, the muffler is a place where the high temperature discharged from the combustion chamber of the engine between driving is always heated by the gas and the condition generated against corrosion is formed by the moisture generated, and the corrosion is severe due to friction or vibration, especially stones or gravel splashing from the road surface. Or, when reversing, it often happens that the jaw's jaw cracks or breaks, causing the muffler to lose its function.

That is, the conventional muffler device has a problem that can not solve the problem that the muffler collides with the jaw of the head when the vehicle is retracted due to parking or the like.

Accordingly, the present invention has been devised to solve the above problems, when the ultrasonic sensor that operates automatically when selecting the reverse gear of the vehicle detects an obstacle such as the jaw of the head can generate a warning sound and automatically activate the brake braking. It is an object of the present invention to provide a device for making the device.

Therefore, in the present invention, a signal of an ultrasonic sensor installed on the upper rear bumper of the vehicle to detect an obstacle is input to the controller, and the controller opens the ultrasonic sensor through the sensor protection door at the same time as selecting the reverse gear of the vehicle and responds to the detection signal. Accordingly, the actuator and the warning sound generating device can be controlled to limit backward driving.

1 is an operation state diagram of the ultrasonic sensor of the present invention

2 is a working block diagram showing an operating state in which the apparatus of the present invention is operated;

Explanation of symbols on the main parts of the drawings

10; Ultrasonic sensor 20; Muffler

30; Sensor protection door 32; Hinge

40; Actuator 50 for sensor door; Body

60; Rear bumper 70; controller

80; Beep generator 90; Brake actuated actuator

100; Release switch 110; Brake pedal switch

120; Reverse gear switch 130; Brake lung

140; Master cylinder 150; Obstacle Detection Effective Section

160; obstacle

Referring to the drawings illustrating the configuration of the present invention for achieving the above object is as follows.

Obstacles that can damage the muffler 20 when the vehicle is reversed by installing a sensor protection door 30 at the top of the rear bumper 60 of the vehicle to automatically open and close according to a signal, and install an ultrasonic sensor 10 inside thereof. The sensor door actuator 40 for detecting and identifying the 160 and automatically opening and closing the sensor protection door 30 is controlled by the controller 70 according to a signal of the reverse gear switch 120. Automatic control, and input the signal of the ultrasonic sensor 10 to the controller 70, the controller 70, the brake actuating actuator 90 and the warning sound generating device 80 in accordance with the signal of the ultrasonic sensor 10 is input ) Can be controlled, but in accordance with the signals of the release switch 100 and the brake closing switch 110, the operation of the apparatus is temporarily configured to be limited by the driver's will.

Referring to the operation and effect on the configuration of the present invention described above are as follows.

The reverse gear switch 120, which inputs a signal to the controller 70, is operated at the same time as the reverse gear selection of the vehicle to input the reverse driving of the vehicle to the controller 70, and the release switch 100 is provided with the device. By temporarily limiting the operation of the driver to ignore the signal of the ultrasonic sensor 10 when necessary, or to operate in the reverse direction while taking the damage of the muffler 20, the reverse gear switch ( The controller 70 for inputting the on state signal of the 120 operates the actuator 40 for the sensor door at the same time to close the sensor protection door 30 so that the ultrasonic sensor 10 can be opened to the outside, As illustrated in FIG. 2, the hinge 32 installed in the sensor protection door 30 serves to provide a function of a rotating shaft when the door is automatically opened and closed by an actuator, and a brake The operation actuator 40 and the warning sound generating device 80 are operated by the control signal of the controller 70 when the controller 70 inputs a detection signal of the obstacle 160 by the ultrasonic sensor 10 to brake each. Braking and issuing a warning sound, the brake closing switch 110 is in the on state when the driver brakes the brake at the same time when the release switch 100 is on the controller 70 is the release switch 110 This function is to turn off and to recognize the state so that the device can operate normally.

As described above, the vehicle using the device of the present invention has an effect of detecting an obstacle that may damage the muffler when the vehicle reverses, automatically braking the vehicle, and generating a warning sound to warn the operator.

Claims (3)

An apparatus for preventing muffler skiing during parking, comprising: an ultrasonic sensor installed at the top of a rear bumper to detect an obstacle when reversing the vehicle, a controller for inputting a signal of the ultrasonic sensor when the reverse gear is selected, and an obstacle that is controlled by the controller And a brake actuating actuator which operates upon sensing to brake the brake and a warning sound generating device controlled by the controller simultaneously with the operation of the brake actuating actuator. The sensor protection door of claim 1, wherein the sensor protection door is fixed to the vehicle body by a hinge to protect the ultrasonic sensor from the outside of the vehicle body, and the opening and closing of the sensor is automatically controlled by an actuator for the sensor door according to the output signal of the controller when the reverse gear of the vehicle is selected. Muffler skid prevention device for parking, characterized in that the installation. The method of claim 1, wherein the controller inputs a signal of a release switch and a signal of a brake closing switch so that when the release switch is in an on state, the controller does not recognize the detection signal of the ultrasonic sensor until brake braking is detected. Muffler skid prevention device at the time of parking.