A taillight system

Abstract

The present application discloses a taillight system, including a taillight circuit and a control system. The taillight circuit includes: a reverse light circuit comprising a plurality of dual-core LED beads with white light-emitting diodes; a turn signal circuit comprising a plurality of dual-core LED beads with yellow light-emitting diodes; and a control system including: a steering control module that, upon receiving a steering power signal, outputs a steering conduction signal to control the conduction of the turn signal circuit; a reverse control module that, upon receiving only a reverse power signal and not a steering power signal, outputs a reverse conduction signal to control the conduction of the reverse light circuit; and, upon receiving both a reverse power signal and a steering power signal, prohibits outputting the reverse conduction signal. In the present application, dual-core LED beads are used to implement the reverse light circuit and the turn signal circuit, and a control method is provided in which the turn signal takes priority over the reverse light. This prevents the visual interference of the constantly lit white light of the reverse light on the turn signal signal, thereby improving the visual recognizability of the taillight system and facilitating safe driving.

Description

Technical Field

[0001] The present invention relates to the field of vehicle circuit control, and in particular to a taillight system. Background Art

[0002] In the existing technology, the control of forklift taillights includes reversing light control and turn signal control. Since the two controls usually operate independently, once the reversing light signal and the turn signal are triggered at the same time, the white light of the reversing light that is always on will cause visual interference to the intermittent turn signal, making it impossible to accurately transmit the turning information to the outside world, posing a driving hazard.

[0003] Therefore, how to provide a solution to the above technical problems is a problem that those skilled in the art need to solve. Summary of the Invention

[0004] In view of this, the present invention aims to provide a taillight system that eliminates the visual interference of the reverse lights on the turn signals. The specific solution is as follows:

[0005] A taillight system includes a taillight circuit and a control system, wherein:

[0006] The taillight circuit includes:

[0007] A reverse light circuit comprising a white LED light-emitting tube with multiple dual-core LED lamp beads;

[0008] A turn signal circuit comprising a yellow LED light-emitting tube including a plurality of said dual-core LED lamp beads;

[0009] The control system includes:

[0010] A steering control module that outputs a steering conduction signal for controlling the conduction of the turn signal lamp circuit when receiving a steering power supply signal;

[0011] When only the reversing power signal is received and the steering power signal is not received, the reversing control module outputs the reversing conduction signal for controlling the conduction of the reversing light circuit; when the reversing power signal and the steering power signal are received at the same time, the reversing control module prohibits outputting the reversing conduction signal.

[0012] Preferably, the reversing control module includes:

[0013] A reversing power circuit having an input end receiving the reversing power signal, a first output end connected to a first end of the reversing light circuit, a second output end connected to a second end of the reversing light circuit, and including an enabling unit for controlling the on / off switching of the reversing light circuit;

[0014] When only the first input terminal receives the reversing power signal and the second input terminal does not receive the steering power signal, the reversing conduction signal is output to the enable terminal of the enable unit; when the first input terminal receives the reversing power signal and the second input terminal receives the steering power signal at the same time, the reversing control circuit is prohibited from outputting the reversing conduction signal to the enable terminal.

[0015] Preferably, the reversing power supply circuit includes:

[0016] Specifically, the enabling unit of the first switch tube receiving the reverse conduction signal at the control end;

[0017] A first diode having a cathode serving as both the input terminal and the first output terminal of the reversing power supply circuit and an anode connected to the first end of the first switching tube;

[0018] a first inductor having a first end serving as a second output end of the reversing power supply circuit and a second end connected to the anode of the first diode;

[0019] a first resistor having a first end connected to the second end of the first switch tube and a second end grounded;

[0020] The reverse control circuit includes:

[0021] The power supply terminal serves as the first input terminal of the reversing control circuit and the output terminal outputs the reversing conduction signal as a logic control unit;

[0022] The control end serves as the second input end of the reversing control circuit, a second switch tube having a first end connected to the enable end of the logic control unit and a second end grounded.

[0023] Preferably, the turn signal circuit includes a plurality of turn signal units connected in parallel, and each of the turn signal units includes a plurality of yellow LED light-emitting tubes connected in series; the steering control module includes:

[0024] A steering control circuit having an input terminal receiving the steering power supply signal and an output terminal outputting the steering conduction signal;

[0025] A steering power circuit having an input end receiving the steering power signal and a first output end connected to a first end of the steering lamp circuit;

[0026] A third switch tube having a control end receiving the steering conduction signal, a first end connected to the second end of the steering light circuit, and a second end connected to the second output end of the steering power supply circuit.

[0027] Preferably, the turn signal circuit includes a plurality of turn signal units, and each of the turn signal units includes a plurality of yellow LED light-emitting tubes connected in series;

[0028] The steering control module includes:

[0029] A steering control circuit having an input terminal receiving the steering power supply signal and a plurality of output terminals sequentially outputting the steering conduction signal of a preset duration;

[0030] A steering power circuit having an input end receiving the steering power signal and a first output end connected to the first ends of all the steering lamp units;

[0031] The control end receives the corresponding steering conduction signal, has a first end connected to the second end of the corresponding steering lamp unit, and has a plurality of steering switch tubes whose second ends are both connected to the second output end of the steering power supply circuit.

[0032] Preferably, the reversing control circuit further includes a voltage maintaining unit connected to the control end of the second switch tube.

[0033] Preferably, the voltage maintaining unit specifically includes:

[0034] a third resistor whose first end serves as the second input end of the reversing control circuit and whose second end is connected to the control end of the second switch tube;

[0035] a fourth resistor having a first end connected to the second end of the third resistor and a second end grounded;

[0036] A voltage stabilizing diode and a voltage stabilizing capacitor are connected in parallel with the fourth resistor.

[0037] Preferably, the reversing light circuit includes a plurality of reversing light units connected in parallel, and each of the reversing light units includes a plurality of the white light LED light-emitting tubes connected in series.

[0038] Preferably, the control system further includes:

[0039] When receiving the original steering power signal, a first filtering module outputs the steering power signal;

[0040] When the original reverse power signal is received, the second filtering module outputs the reverse power signal.

[0041] The present application discloses a taillight system, comprising a taillight circuit and a control system, wherein the taillight circuit includes: a reverse light circuit comprising a plurality of dual-core LED lamp beads with white light emitting diodes; a turn signal circuit comprising a plurality of the dual-core LED lamp beads with yellow light emitting diodes; and the control system includes: a steering control module that outputs a turn signal to control the turn signal circuit to be turned on when a steering power signal is received; a reverse control module that outputs a reverse signal to control the reverse light circuit to be turned on when only a reverse power signal is received and the steering power signal is not received, and disables output of the reverse signal when both the reverse power signal and the steering power signal are received. In the present application, dual-core LED lamp beads are used to implement the reverse light circuit and the turn signal circuit, and a control mode in which the turn signal takes priority over the reverse light is provided. When the steering power signal and the reverse power signal simultaneously trigger the taillight system, only the turn signal circuit is turned on and the reverse light circuit is turned off, thereby preventing the visual interference of the reverse light signal with the white light of the reverse light, improving the visual recognizability of the taillight system and facilitating safe driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0043] Figure 1 This is a structural distribution diagram of a taillight system according to an embodiment of the present invention;

[0044] Figure 2a This is a structural distribution diagram of a taillight circuit in an embodiment of the present invention;

[0045] Figure 2b This is a structural distribution diagram of a taillight circuit in an embodiment of the present invention;

[0046] Figure 3 This is a structural distribution diagram of a reversing control module in an embodiment of the present invention;

[0047] Figure 4 This is a structural distribution diagram of a steering control module in an embodiment of the present invention;

[0048] Figure 5 FIG. 4 is a structural distribution diagram of another reversing control module in an embodiment of the present invention. DETAILED DESCRIPTION

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0050] In the field of vehicle control, particularly forklift control, taillight control encompasses both reverse and turn signal control. Preventing visual interference from reverse lights on turn signals and eliminating driving hazards is a challenge facing those skilled in the art. This application utilizes dual-core LEDs as components of the taillight circuit. The reverse control module integrates reverse and turn signal power signals before issuing a reverse on signal. This prioritizes the turn signal over the reverse light, eliminating visual interference from the reverse light and contributing to safer driving.

[0051] See also Figure 1 As shown, an embodiment of the present invention discloses a taillight system, including a taillight circuit 1 and a control system 2, wherein:

[0052] Tail light circuit 1 includes:

[0053] A turn signal circuit 11 comprising a plurality of yellow LED light-emitting tubes with dual-core LED lamp beads;

[0054] A reverse light circuit 12 comprising a white light LED light emitting tube with multiple dual-core LED lamp beads;

[0055] The control system 2 includes:

[0056] The steering control module 21 outputs a steering on signal TS for turning on the turn signal circuit 11 upon receiving the steering power signal VT;

[0057] When only the reversing power signal VB is received and the steering power signal VT is not received, the reversing control module 22 outputs the reversing conduction signal BS for controlling the reversing lamp circuit 12 to be turned on. When both the reversing power signal VB and the steering power signal VT are received at the same time, the reversing control module 22 prohibits outputting the reversing conduction signal BS.

[0058] Furthermore, the reversing control module 22 includes:

[0059] The reversing power circuit 221 includes an input terminal receiving a reversing power signal VB, a first output terminal connected to a first terminal of the reversing light circuit 12, a second output terminal connected to a second terminal of the reversing light circuit 12, and includes an enabling unit for controlling the on / off switching of the reversing light circuit 12;

[0060] When only the first input terminal receives the reverse power signal VB and the second input terminal does not receive the steering power signal VT, the reverse conduction signal BS is output to the enable terminal of the enable unit. When the first input terminal receives the reverse power signal VB and the second input terminal receives the steering power signal VT at the same time, the reverse control circuit 222 is prohibited from outputting the reverse conduction signal BS to the enable terminal.

[0061] It is understood that the reverse control circuit 222 outputs a reverse conduction signal BS to the enable terminal of the enable unit of the reverse power circuit 221 according to a set scenario, turning on the reverse light circuit 12 connected to the reverse power circuit 221 and emitting white light. The set scenario is: when only the reverse power signal VB is received and the steering power signal VT is not received, the reverse conduction signal BS is output; when both the reverse power signal VB and the steering power signal VT are received, the steering conduction signal TS is disabled.

[0062] Similarly, the steering control module 21 includes: a steering control circuit 211 having an input end receiving a steering power signal VT and an output end outputting a steering conduction signal TS; a steering power circuit 212 having an input end receiving a steering power signal VT and two output ends connected to the steering light circuit 11 through a switch tube unit 213; the switch tube unit 213 is controlled by the steering conduction signal TS; when the switch tube unit 213 receives the steering conduction signal TS, the switch tube unit 213 controls the steering light circuit 11 connected to the steering power circuit 212 to conduct and emit yellow light.

[0063] Furthermore, the control system 2 may further include:

[0064] When receiving the original steering power signal VT, a first filtering module outputs the steering power signal VT;

[0065] When the original reverse power signal VB is received, the second filtering module outputs the reverse power signal VB.

[0066] It is understood that the structures of the first filter module and the second filter module are similar and can be implemented through the RLC series-parallel structure. The specific circuit will not be described in detail. In addition, a diode can be added to the input or output of the first filter module or the second filter module to protect the circuit.

[0067] It can be understood that dual-core LED lamp beads are LED lamp beads that integrate two LED chips and package them together. Dual-core LED lamp beads are smaller in size and can achieve the lighting effect of both reversing lights and turn lights. They have greater advantages when the internal circuit is crowded and the layout space is small.

[0068] Each dual-core LED lamp bead has four control pins, of which pins 1 and 2 control the yellow LED light-emitting tube, and pins 3 and 4 control the white LED light-emitting tube. Of course, in addition to using yellow LED light-emitting tubes as turn signals and white LED light-emitting tubes as reversing lights, lamp beads of other colors can also be selected. This is not limited here, as long as the colors of the reversing lights and turn signals are different. The specific connection relationship of multiple dual-core LED lamp beads can include series connection, parallel connection, series and parallel connection with capacitors and resistors, etc., and the specific needs need to be selected according to different application scenarios. It is also possible to select corresponding lamp beads from the fixed dual-core LED lamp beads without connecting them to achieve the effect of adjusting the relevant brightness, avoiding faulty light-emitting tubes, or balancing the load power. The common taillight circuit 1 can be as follows Figure 2a or Figure 2b As shown:

[0069] Figure 2a The figure includes 4 groups of dual-core LED lamp beads connected in series, each group includes three dual-core LED lamp beads. The physical positions of the white light LED light-emitting tube and the yellow light LED light-emitting tube in each dual-core LED lamp bead in the figure remain unchanged. The first end of the turn signal circuit 11 in the figure is VT+, and each group of turn signal units corresponds to a different second end VT1- to VT4-. The first end of the reversing light circuit 12 is VB, and the second end is VB-.

[0070] It is understandable that Figure 2a There are two wiring methods, in which the reversing light circuit 12 includes multiple parallel reversing light units, each of which includes multiple white light LED light-emitting tubes connected in series, and the turn signal circuit 11 includes multiple turn signal units, each of which includes multiple yellow light LED light-emitting tubes connected in series. These multiple turn signal units can be connected in parallel or connected to different signal terminals to achieve light emission at different times.

[0071] Figure 2b The CCP uses 11 dual-core LED lamp beads (LED47, LED48, LED52-LED59, LED64), and the wiring method is as follows Figure 2b As shown in the figure, the resistor connected in the circuit serves as a branch load, and the capacitor is used to protect the lamp beads.

[0072] In this application, dual-core LED lamp beads are used to realize the reversing light circuit and the turn signal circuit, and a control method of the turn signal giving priority to the reversing light is provided. When the steering power signal VT and the reversing power signal VB trigger the tail light system at the same time, only the turn signal circuit is turned on and the reversing light circuit is not turned on, thereby avoiding the visual interference of the reversing light's constantly lit white light on the turn signal, improving the visual recognizability of the tail light system, and contributing to safe driving.

[0073] The embodiment of the present invention discloses a specific taillight system. Compared with the previous embodiment, this embodiment further illustrates and optimizes the technical solution.

[0074] For details, see Figure 3 As shown, the reverse power supply circuit 221 includes:

[0075] Specifically, it is an enabling unit of the first switch tube Q1 whose control end receives the reverse conduction signal BS;

[0076] The cathode of the first diode D1 serves as both the input terminal and the first output terminal VB of the reverse power supply circuit 221 and the anode of the first diode D1 is connected to the first terminal of the first switch tube Q1;

[0077] A first end of the first inductor L1 is connected to the anode of the first diode and a second end of the first inductor L2 is connected to the anode of the first diode;

[0078] A first resistor R1 having a first end connected to the second end of the first switch tube Q1 and a second end connected to the ground;

[0079] The reverse control circuit 222 includes:

[0080] The power supply terminal serves as the first input terminal of the reverse control circuit 222 and the output terminal outputs the reverse conduction signal BS of the logic control unit U1;

[0081] The control end serves as the second input end of the reverse control circuit 222 , the second switch tube Q2 has a first end connected to the enable end of the logic control unit U1 , and a second end grounded.

[0082] Specifically, in this embodiment, the first diode D1 is a Schottky diode. In this embodiment, a logic control unit U1 corresponding to the scenario described above is provided. The power supply pin of the logic control unit U1 is labeled VIN, the enable pin is labeled PWMD, and the output pin is labeled GATE. The numbering and connection relationships of the other pins can be handled according to conventional methods. Furthermore, the first switch Q1 and the second switch Q2 are typically selected from controllable switch transistors such as triodes and MOS transistors. The first and second terminals of the switches represent the ports where the main current flows in and out.

[0083] In this embodiment, when the steering power signal VT is at a low level, once the reversing power signal VB is at a high level, the second switch tube Q2 is turned on, pulling down the potential of the PWMD pin of the logic control unit U1, causing the logic control unit U1 to output a high-level reversing conduction signal BS to the first switch tube Q1, turning on the first switch tube Q1, and turning on the reversing light circuit 12 to emit light; when the steering power signal VT is at a high level, regardless of the state of the reversing power signal VB, the logic control unit U1 will prohibit outputting the reversing conduction signal BS, the first switch tube Q1 will always be turned off, and the reversing light circuit 12 will not emit light, thereby ensuring that the turn signal circuit 11 has a higher priority than the reversing light circuit 12.

[0084] The embodiment of the present invention discloses a specific taillight system. Compared with the previous embodiment, this embodiment further illustrates and optimizes the technical solution.

[0085] Specifically, the turn signal circuit 11 includes a plurality of turn signal units connected in parallel, and each turn signal unit includes a plurality of yellow LED light-emitting tubes connected in series;

[0086] At this time, the steering control module 21 includes:

[0087] A steering control circuit 211 having an input terminal receiving a steering power signal VT and an output terminal outputting a steering conduction signal TS;

[0088] A steering power circuit 212 having an input terminal receiving a steering power signal VT and a first output terminal connected to a first terminal of the steering lamp circuit 11;

[0089] The control end receives the turn signal TS, the first end is connected to the second end of the turn signal circuit 11 , and the second end is connected to the third switch tube Q3 of the second output end of the turn signal power circuit 212 .

[0090] It can be understood that the third switch tube Q3 here is the switch tube unit 213 mentioned in the first embodiment.

[0091] It is understandable that all turn signal units are connected in parallel, corresponding to Figure 2a The middle ports VT1- to VT4- are combined into one port, so the third switch tube Q3 controls all the yellow LED light-emitting tubes in the entire turn signal circuit 11 to emit light uniformly.

[0092] However, considering that the lighting effect of the turn signal circuit 11 is usually a flashing stream, that is, multiple groups of turn signal units are turned on in sequence at a preset frequency and remain in a constant lighting state for a certain period of time, the lighting time is controlled by a relay. For example, 4 groups of turn signal units light up and remain on in sequence at an interval of 80ms, and a cycle lighting duration is set to 450ms. Then, the first group of turn signal units remains on for 450ms, the second group of turn signal units remains on for 370ms, the third group of turn signal units remains on for 290ms, and the fourth group of turn signal units remains on for 210ms. The above is only an example to illustrate that when controlling the taillight system, there is a need for independent control of the lighting of the turn signal units in the turn signal circuit 11. Therefore, the turn signal circuit 11 includes multiple turn signal units, each of which includes multiple yellow LED light-emitting tubes connected in series;

[0093] At this time, the steering control module 21 includes:

[0094] A steering control circuit 211 having an input terminal receiving a steering power signal VT and multiple output terminals sequentially outputting a steering conduction signal TS of a preset duration;

[0095] The input terminal receives the steering power signal VT, and the first output terminal VT+ is connected to the steering power circuit 212 of the first terminals of all the turn signal lamp units;

[0096] The control end receives the corresponding turn signal TS, has a first end connected to the second end of the corresponding turn signal unit, and has a plurality of turn switch tubes whose second ends are connected to the second output end VT- of the turn power circuit 212.

[0097] At this time, the steering control circuit 211 outputs the steering conduction signal TS and the number of steering switch tubes are the same as the number of the turn signal unit. Figure 4 As shown, Figure 4 Taking 4 groups of turn signal units as an example, the number of turn signal TS and turn switch tubes are both 4. Figure 2a The ports in the taillight circuit 1 are connected accordingly.

[0098] It is understood that the multiple steering switch tubes here are the switch tube unit 213 mentioned in the first embodiment. In this case, the switch elements in the switch tube unit 213 are generally selected from controllable switch tubes such as triodes and MOS tubes, and the first and second ends of the switch tubes are the ports where the main current flows in and out.

[0099] It can be understood that the steering switch tube and the steering lamp unit are connected between the first output terminal VT+ and the second output terminal VT- of the steering power supply circuit 212, and the specific connection sequence is as follows, except for Figure 2a and Figure 4 In this connection mode indicated in , the current can also pass through the first output terminal VT+ of the steering power supply circuit 212, first through the steering switch tube, then through the steering lamp unit, and finally into the second output terminal VT- of the steering power supply circuit 212.

[0100] The steering control circuit 211 is mainly implemented by a single chip microcomputer, so the steering control circuit 211 includes a single chip microcomputer power supply circuit 2110 and a single chip microcomputer U2. The steering power supply circuit 212 is mainly composed of a control chip U3 and related additional circuits.

[0101] For further information, see Figure 5 As shown, in the process of the turn signal flashing or the turn power signal VT being intermittent, in order to keep the reversing light circuit 12 in a non-luminous state, the reversing control circuit 222 further includes a voltage maintaining unit 223 connected to the control end of the second switch tube K2.

[0102] The voltage maintaining unit 223 specifically includes:

[0103] A third resistor R3 having a first end serving as a second input end of the reverse control circuit 222 and a second end connected to the control end of the second switch Q2;

[0104] a fourth resistor R4 having a first end connected to the second end of the third resistor R3 and a second end grounded;

[0105] A voltage stabilizing diode DT and a voltage stabilizing capacitor C are connected in parallel with the fourth resistor R4.

[0106] It can be understood that the voltage maintaining unit 223 charges the voltage stabilizing capacitor C when the steering power signal VT appears. When the steering power signal VT disappears, that is, the voltage maintaining unit 223 is at a low level, the voltage stabilizing capacitor C continues to maintain the conduction of the second switch tube Q2 until the power in the voltage stabilizing capacitor C is exhausted, and the reverse light circuit 12 is then turned on.

[0107] It is understandable that Figure 5 For example only, except Figure 5 In addition to the structure of , other circuit structures that can implement the voltage maintaining unit 223 can be applied to this embodiment.

[0108] Finally, it should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0109] The above is a detailed introduction to the taillight system provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A taillight system, characterized in that: Includes taillight circuit and control system, including: The taillight circuit includes: A reverse light circuit comprising a white LED light-emitting tube with multiple dual-core LED lamp beads; A turn signal circuit comprising a yellow LED light-emitting tube including a plurality of said dual-core LED lamp beads; the connection relationship of the plurality of said dual-core LED lamp beads includes series connection, parallel connection, series-parallel connection with a capacitor and a resistor, or selecting a corresponding lamp bead from the said dual-core LED lamp beads and not connecting; The control system includes: A steering control module that outputs a steering conduction signal for controlling the conduction of the turn signal lamp circuit when receiving a steering power supply signal; When only the reversing power signal is received and the steering power signal is not received, the reversing control module outputs the reversing conduction signal for controlling the conduction of the reversing light circuit; when the reversing power signal and the steering power signal are received at the same time, the reversing control module prohibits outputting the reversing conduction signal.

2. The taillight system according to claim 1, characterized in that: The reversing control module includes: A reversing power circuit having an input end receiving the reversing power signal, a first output end connected to a first end of the reversing light circuit, a second output end connected to a second end of the reversing light circuit, and including an enabling unit for controlling the on / off switching of the reversing light circuit; When only the first input terminal receives the reversing power signal and the second input terminal does not receive the steering power signal, the reversing conduction signal is output to the enable terminal of the enable unit; when the first input terminal receives the reversing power signal and the second input terminal receives the steering power signal at the same time, the reversing control circuit is prohibited from outputting the reversing conduction signal to the enable terminal.

3. The taillight system according to claim 2, characterized in that: The reverse power supply circuit includes: Specifically, the enabling unit of the first switch tube receiving the reverse conduction signal at the control end; A first diode having a cathode serving as both the input terminal and the first output terminal of the reversing power supply circuit and an anode connected to the first end of the first switching tube; a first inductor having a first end serving as a second output end of the reversing power supply circuit and a second end connected to the anode of the first diode; a first resistor having a first end connected to the second end of the first switch tube and a second end grounded; The reverse control circuit includes: The power supply terminal serves as the first input terminal of the reversing control circuit and the output terminal outputs the reversing conduction signal as a logic control unit; The control end serves as the second input end of the reversing control circuit, a second switch tube having a first end connected to the enable end of the logic control unit and a second end grounded.

4. The taillight system according to claim 3, characterized in that: The turn signal circuit includes a plurality of turn signal units connected in parallel, and each of the turn signal units includes a plurality of yellow LED light-emitting tubes connected in series; The steering control module includes: A steering control circuit having an input terminal receiving the steering power supply signal and an output terminal outputting the steering conduction signal; A steering power circuit having an input end receiving the steering power signal and a first output end connected to a first end of the steering lamp circuit; A third switch tube having a control end receiving the steering conduction signal, a first end connected to the second end of the steering light circuit, and a second end connected to the second output end of the steering power supply circuit.

5. The taillight system according to claim 3, characterized in that: The turn signal circuit includes a plurality of turn signal units, and each of the turn signal units includes a plurality of yellow LED light-emitting tubes connected in series; The steering control module includes: A steering control circuit having an input terminal receiving the steering power supply signal and a plurality of output terminals sequentially outputting the steering conduction signal of a preset duration; A steering power circuit having an input end receiving the steering power signal and a first output end connected to the first ends of all the steering lamp units; The control end receives the corresponding steering conduction signal, has a first end connected to the second end of the corresponding steering lamp unit, and has a plurality of steering switch tubes whose second ends are both connected to the second output end of the steering power supply circuit.

6. The taillight system according to claim 5, characterized in that: The reverse control circuit further includes a voltage maintaining unit connected to the control end of the second switch tube.

7. The taillight system according to claim 6, characterized in that: The voltage maintaining unit specifically includes: a third resistor whose first end serves as the second input end of the reversing control circuit and whose second end is connected to the control end of the second switch tube; a fourth resistor having a first end connected to the second end of the third resistor and a second end grounded; A voltage stabilizing diode and a voltage stabilizing capacitor are connected in parallel with the fourth resistor.

8. The taillight system according to any one of claims 1 to 7, characterized in that: The reversing light circuit includes a plurality of reversing light units connected in parallel, and each of the reversing light units includes a plurality of white light LED light-emitting tubes connected in series.

9. The taillight system according to claim 8, characterized in that: The control system further comprises: When receiving the original steering power signal, a first filtering module outputs the steering power signal; When the original reverse power signal is received, the second filtering module outputs the reverse power signal.

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