KR970002495Y1 - Car backward light wrong checking device - Google Patents

Abstract

None.

Description

Automotive reverse fault detection device

1 is a front view showing an exemplary embodiment of a display panel of an automobile reverse failure detection device of the present disclosure.

FIG. 2 is a block diagram of one embodiment showing the vehicle reverse failure detection device of the present disclosure.

* Explanation of symbols for main parts of the drawings

1.2: reverse back assembly 3,4: detection means

5: battery 6: reverse shift switch

7: reverse detection means 8: AND logic gate

10: microcomputer 20: display device

The present invention relates to a fault detection device for automobile backwards, and more particularly to a fault detection device configured to detect and display faults such as reverse in more detail.

In general, the back light of a vehicle is difficult to detect even when a failure occurs due to a problem such as a short circuit of a lamp or a bad contact, or it is difficult for a subsequent driver to detect it until a third party is notified or checked in a special way. There is a problem of this problem, and suitable fault detection means and devices are desired.

In view of the above problems, the vehicle reverse failure detection device of the present invention can be configured as a simple independent circuit configuration or as a part of the entire vehicle electric system, so that the vehicle reverse failure can be easily performed. It is an object to provide a detection device.

Along with the accompanying drawings, the vehicle reverse failure detection device of the present disclosure will be described in more detail.

FIG. 1 is a front view showing an exemplary embodiment of the display panel of the vehicle reverse failure detection apparatus of the present disclosure, and FIG. 2 is a block diagram of an embodiment showing the vehicle reverse failure detection apparatus of the present disclosure together. .

In the reversing light fault detection device of the present invention, as shown, an optical fiber such as an optical fiber or a detection means such as a photo coupler (3, 4) attached to the inside of the reflector (1 '. 2') in the reverse light assembly (1, 2). The reverse detecting means 7 which has a detecting means and detects the reverse state of the reverse shift switch 6 connected to the battery 5 is connected to the AND logic gate 8 and each of the detecting means 3 and 4. The signal from the judging means 9, such as a comparator for determining whether there is an abnormality in response to the signal from the signal, is applied to the AND logic gate 8 again to determine the state in the microcomputer 10, and an example of FIG. As shown in FIG. 2, the left rear failure failure display lamp 21 and the right reverse failure failure display lamp 22 are driven by the display device 20 installed in the panel of the driver's seat as shown.

When a failure such as reverse or the like of one or both of the above occurs, the ON signal value such as reverse and the signal value from the detecting means are compared with the AND logic value in the AND logic circuit 8, and each of the microcomputers 10 is converted into an AND logic value. Drive the display lamp. In the above, the display device may be various means such as an LCD display, an instrument having a rotation indicator, in addition to the lamp described above. The detection means could also be replaced as a temperature sensor instead of an optical sensor.

Further, the determination of the fault condition is made as a simple logic table, and the driving signal of the lamp may also be various trigger means, and the above configuration is avoided because such a configuration is conventional.

As described above, the fault detection device for the automobile reverse light is a useful design that can prevent the fault caused by the reverse light in advance by making it easy to distinguish the fault state of the reverse light from the driver's seat.

Claims (1)

Reverse to detect the reverse state of the left and right pair of detection means 3 and 4 for detecting an optical signal such as reverse in the reverse light assembly 1 and 2 and the reverse shift switch 6 connected to the battery 5. The detection means 7 and the determination means 9 are provided, and both signals are judged by the microcomputer 10 through the AND logic gate 8, and the failure state is indicated by the left backward failure in the display device 20. A rear light fault detection apparatus for a vehicle, characterized in that for driving a selective display device of the display lamp (21) and the right reverse fault display lamp (22).