CN2818229Y - Automatic opener of steering light for vehicle - Google Patents

Abstract

The utility model relates to an automatic turn-on device for an automobile turn signal lamp, which belongs to the technical field of automotive electronics application, and mainly aims to solve the safety hazards caused by the inconvenience of turning on the traditional manual turn signal lamp and the failure to turn on the turn signal lamp in violation of regulations. The assembly of the utility model comprises a steering wheel, an angle sensor, a control unit, a speed sensor, a right turn signal, a left turn signal, and a steering wheel rotation shaft. The control unit includes auxiliary devices such as single-chip microcomputer, crystal oscillator, resistors and capacitors. The combination method is: install an angle sensor on the steering wheel shaft, when the steering wheel turns, the sensor sends a signal to the control unit, and at the same time, the vehicle speed sensor also inputs a signal to the control unit. The control unit judges the steering wheel steering angle and the vehicle speed to determine and output a control signal to the right turn signal or the left turn signal. Thereby, the steering status of the vehicle can be automatically prompted. By implementing the utility model, as long as the rotation angle of the steering wheel of the automobile exceeds a certain value, the turn signal is turned on.

Description

A kind of automatic opening device of automobile turn signal

Technical field:

The utility model relates to an automatic turn-on device for an automobile turn signal lamp, which is mainly used to solve the safety hazards caused by the inconvenience of turning on the traditional manual turn signal lamp and the failure to turn on the turn signal lamp in violation of regulations, and belongs to the technical field of automobile electronic applications.

Background technique:

The traditional manual turn signal is turned on, mainly according to the driving intention of the driver, and the driver himself toggles the turn signal device. When it is inconvenient to toggle the turn signal or the driver ignores the problem of the turn signal, it is easy to cause a traffic accident because the driver of the vehicle behind cannot obtain the driving information of the vehicle in front in time.

Invention content:

The purpose of the utility model is to provide a device for automatically turning on the turn signal of an automobile, mainly to solve the safety hazards caused by the inconvenience of turning on the traditional manual turn signal and failure to turn on the turn signal in violation of regulations.

The assembly of the utility model comprises a steering wheel, an angle sensor, a control unit, a speed sensor, a right turn signal, a left turn signal, and a steering wheel rotation shaft. The control unit includes auxiliary devices such as single-chip microcomputer, crystal oscillator, resistors and capacitors.

The purpose of this utility model can be achieved by the following measures:

The utility model installs the sensor on the shaft of the automobile steering wheel. The common potentiometric sensor is used here. When the angle of the steering wheel changes, the resistance value of the corresponding variable resistor will change, which corresponds to the change of the voltage value on the circuit. The sensor detects the counterclockwise or clockwise rotation angle of the steering wheel, and when it exceeds a fixed value (5°), a voltage value is obtained and sent to the control unit. After the program in the single-chip microcomputer of the control unit performs analysis and calculation, and compares it with the speed change collected by the speed sensor, the turn signal on the steering wheel turns to one side is activated. Then, continue to collect the rotation angle of the steering wheel, and when the collected reverse rotation angle is equal to the positive steering angle, it indicates that the steering action has been completed. Through the circuit, turn off the corresponding turn signal.

The utility model mainly solves the safety problems caused by the inconvenience of turning on the traditional manual turn signal and the failure to turn on the turn signal in violation of regulations. By implementing the utility model, in any case, as long as the rotation angle of the steering wheel of the automobile exceeds a certain value, the turn signal will definitely be turned on.

Attached to the manual:

Fig. 1 is a structural representation of the utility model

Fig. 2 is a program flow chart of the utility model

1-Steering wheel, 2-Angle sensor, 3-Control unit, 4-Speed sensor, 5-Right turn signal, 6-Left turn signal, 7-Steering wheel rotation shaft.

Specific implementation plan:

In conjunction with the accompanying drawings, the utility model is further described.

The utility model installs the angle sensor 2 on the shaft 7 of the steering wheel 1, and the angle sensor 2 determines the opening of the turn signal by detecting the rotation angle of the steering wheel 1 shaft 7. The common potentiometric sensor is used here. When the angle of the steering wheel changes, the resistance value of the corresponding variable resistor will change, which corresponds to the change of the voltage value on the circuit. If the steering wheel is turned by more than 5° in one direction, the sensor 2 receives a voltage signal which is transmitted to the control unit 3 . The control unit 3 performs corresponding analysis and calculation on the variation to obtain the direction of rotation and the magnitude of the direction of rotation of the steering wheel. After comparing with the speed variation collected by the speed sensor 4, it is judged whether the steering condition is satisfied. If so, activate the turn signal on the side where the steering wheel is turned. Once activated the turn signal remains on. At the same time, the angle sensor 2 continues to collect the angle change of the steering wheel. If the steering wheel is at the same speed after starting the turn signal, the angle sensor 2 collects the reverse rotation angle and the steering angle is equal, indicating that the steering action has been completed. Through the circuit, turn off the corresponding turn signal.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (2)

1. The utility model relates to an automatic turn-on device for automobile turn signals, which is composed of a steering wheel, an angle sensor, a control unit, a speed sensor, a right turn signal, a left turn signal, and a steering wheel rotation shaft, wherein the control unit includes a single-chip microcomputer, a crystal oscillator, a resistor and Auxiliary devices such as capacitors; it is characterized in that an angle sensor is installed on the steering wheel shaft. When the steering wheel turns, the sensor sends a signal to the control unit. At the same time, the speed sensor also inputs signals to the control unit. The control unit judges the steering wheel steering angle and vehicle speed to determine the output control Signal to turn right turn signal or left turn signal. 2. Claim 1 relates to an automatic turning on device for automobile turn signal lamps, characterized in that, after the sensor detects that the rotation angle of the steering wheel counterclockwise or clockwise is greater than or equal to 5°, a voltage value is obtained and sent to the control unit .

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