Motor vehicle steering priority intelligent flash controller

Abstract

A motor vehicle steering priority intelligent flash controller comprises a control circuit, and the control circuit comprises a main chip, an input unit circuit, a left steering lamp output unit circuit and a right steering lamp output unit circuit. The input unit circuit, the left steering lamp output unit circuit and the right steering lamp output unit circuit are electrically connected with the main chip; the input unit circuit comprises an input interface connected with a motor vehicle circuit, a TP2 pin of the input interface is connected with a 12V power supply, a TP8 pin of the input interface is grounded, and a TP3 pin, a TP4 pin and a TP5 pin of the input interface are electrically connected with the main chip; the left steering lamp output unit circuit comprises a left output interface connected with a motor vehicle left steering lamp, and a TP1 pin of the left output interface is electrically connected with the main chip; the right steering lamp output unit circuit comprises a right output interface connected with a right steering lamp of the motor vehicle, and a TP7 pin of the right output interface is electrically connected with the main chip.

Description

Technical Field

[0001] The utility model relates to the field of electronic devices, in particular to an intelligent flash controller with priority for motor vehicle steering. Background Art

[0002] The left turn signal and the right turn signal of a motor vehicle are respectively used to indicate the turning information of the motor vehicle. The flasher is used to control the flashing of the left turn signal or the right turn signal. When the turn signal switch is turned on, the corresponding LED light will flash to give a reminder; Patent No. ZL202310011987.6 discloses a 6-pin brake flash controller

[0003] which effectively realizes the simultaneous flash function of the left and right turn signals of the motor vehicle; however, the existing flash function of the motor vehicle turn signal will not turn off when the motor vehicle is turning, which will affect the turning reminder function of the turn signal, resulting in the vehicle behind being unable to distinguish the walking direction of the motor vehicle in time and affecting the driving safety of the motor vehicle. Therefore, it is necessary to improve it. Summary of the Invention

[0004] The purpose of the utility model is to provide an intelligent flash controller with priority for motor vehicle steering, which has a simple structure and improves safety.

[0005] In order to achieve the above purpose, the technical solution of the utility model is:

[0006] An intelligent flash controller with priority for motor vehicle steering includes a control circuit, and the control circuit includes a main chip, an input unit circuit, a left turn signal output unit circuit, and a right turn signal output unit circuit; the input unit circuit, the left turn signal output unit circuit, and the right turn signal output unit circuit are all electrically connected to the main chip; the input unit circuit includes an input interface connected to the motor vehicle circuit, the TP2 pin of the input interface is connected to the 12V power supply, the TP8 pin of the input interface is grounded, and the TP3 pin, TP4 pin, and TP5 pin of the input interface are all electrically connected to the main chip; the left turn signal output unit circuit includes a left output interface connected to the left turn signal of the motor vehicle, and the TP1 pin of the left output interface is electrically connected to the main chip; the right turn signal output unit circuit includes a right output interface connected to the right turn signal of the motor vehicle, and the TP7 pin of the right output interface is electrically connected to the main chip.

[0007] Further, the TP3 pin of the input interface is connected to one end of the resistor R3, and the other end of the resistor R3 is respectively connected to one end of the resistor R10, one end of the resistor R5, the cathode of the diode D1, and the PA11 pin of the main chip. The other end of the resistor R10 is connected to the anode of the diode D5, and the cathode of the diode D5, the other end of the resistor R5, and the anode of the diode D1 are all grounded; the TP4 pin of the input interface is respectively connected to one end of the resistor R4 and one end of the resistor R20, and the other end of the resistor R20 is connected to the TP1 pin of the left output interface. The other end of the resistor R4 is respectively connected to one end of the resistor R8, one end of the resistor R6, the cathode of the diode D2, and the PA12 pin of the main chip. The other end of the resistor R8 is connected to the anode of the diode D4, and the cathode of the diode D4, the other end of the resistor R6, and the anode of the diode D2 are all grounded; the TP5 pin of the input interface is respectively connected to one end of the resistor R19 and one end of the resistor R21, and the other end of the resistor R21 is connected to the TP7 pin of the right output interface. The other end of the resistor R19 is respectively connected to one end of the resistor R18, one end of the resistor R17, the cathode of the diode D7, and the PB1 pin of the main chip. The other end of the resistor R18 is connected to the anode of the diode D8, and the cathode of the diode D8, the other end of the resistor R17, and the anode of the diode D7 are all grounded.

[0008] Further, the TP1 pin of the left output interface is respectively connected to one end of the resistor R20 and the drain of the MOS transistor Q2. The source of the MOS transistor Q2 is respectively connected to the 12V power supply and one end of the resistor R16. The gate of the MOS transistor Q2 and the other end of the resistor R16 are respectively connected to the collector of the triode Q1. The base of the triode Q1 is respectively connected to one end of the resistor R14 and one end of the resistor R15. The other end of the resistor R14 is connected to the PA4 pin of the main chip. The other end of the resistor R15 and the emitter of the triode Q1 are all grounded.

[0009] Further, the TP7 pin of the right output interface is respectively connected to one end of the resistor R21 and the drain of the MOS transistor Q3. The source of the MOS transistor Q3 is respectively connected to the 12V power supply and one end of the resistor R11. The gate of the MOS transistor Q3 and the other end of the resistor R11 are respectively connected to the collector of the triode Q4. The base of the triode Q4 is respectively connected to one end of the resistor R12 and one end of the resistor R13. The other end of the resistor R12 is connected to the PA5 pin of the main chip. The other end of the resistor R13 and the emitter of the triode Q4 are all grounded.

[0010] Further, the control circuit further includes an audio output circuit. The audio output circuit includes an audio amplifier chip. The CTRL pin of the audio amplifier chip is connected to one end of a resistor R1, and the other end of the resistor R1 is connected to a 5V power supply. The BYPASS pin of the audio amplifier chip is connected to one end of a capacitor C7. The INP pin of the audio amplifier chip is connected to one end of a resistor R2, and the other end of the resistor R2 is connected to one end of a capacitor C10. The other end of the capacitor C10 and the other end of the capacitor C7 are both grounded. The INN pin of the audio amplifier chip is connected to one end of a resistor R7, and the other end of the resistor R7 is connected to one end of a capacitor C5. The other end of the capacitor C5 is connected to the PB0 pin of the main chip. The VON pin of the audio amplifier chip is connected to one end of a speaker, and the other end of the speaker is connected to the DACP0 pin of the main chip. The VDD pin of the audio amplifier chip is respectively connected to one end of a capacitor C8 and one end of a capacitor C9. The other end of the capacitor C8, the other end of the capacitor C9, and the GND pin of the audio amplifier chip are all grounded. The VOP pin of the audio amplifier chip is connected to the DACN0 pin of the main chip.

[0011] Further, the VBAT pin of the main chip is respectively connected to a 5V power supply and one end of a capacitor C11, and the other end of the capacitor C11 is grounded. The VDDIO pin of the main chip is connected to one end of a capacitor C12, and the other end of the capacitor C12 is grounded. The GND pin and the AGND pin of the main chip are both grounded.

[0012] Further, the control circuit further includes a buck circuit. The buck circuit includes a buck chip. The VIN pin of the buck chip is respectively connected to one end of a capacitor C2, one end of a capacitor C1, the cathode of a diode D3, and a 12V power supply. The other end of the capacitor C2, the other end of the capacitor C1, the anode of the diode D3, and the GND pin of the buck chip are all grounded. The VOUT pin of the buck chip is respectively connected to one end of a capacitor C3, one end of a capacitor C4, the VBAT pin of the main chip, and one end of a resistor R1. The other end of the capacitor C3 and the other end of the capacitor C4 are both grounded.

[0013] Compared with the prior art, the advantages and positive effects of the present utility model are:

[0014] The present utility model can turn on the turn signal pattern strobing function through the turn signal switch on either side of the motor vehicle, realizing the synchronous pattern strobing effect of the left and right turn signals of the motor vehicle. And when the motor vehicle is turning, the pattern strobing function is automatically turned off and converted into a normal turn signal indication function. At the same time, the controller will emit a "dong... dong... dong..." prompt sound to warn the vehicles and pedestrians behind and on the left and right to ensure driving safety.

[0015] On the other hand, when the motor vehicle brakes during normal steering or fancy strobing, the controller will execute the instruction to flash the left and right turn signals to warn the vehicles and pedestrians behind and on the left and right sides, ensuring driving safety.

[0016] The utility model adds a fancy strobing function to the turn signals of the motor vehicle, and while achieving the fancy strobing effect, it gives priority to ensuring the safety guarantee effect when the motor vehicle is turning or braking; moreover, the installation of the controller does not require damaging the original vehicle wiring of the motor vehicle, and can achieve a lossless installation of the original vehicle wiring, further improving the control effect of the motor vehicle flash lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a circuit connection diagram of the input unit circuit and the main chip;

[0019] Figure 2 It is a circuit structure diagram of the left turn signal output unit circuit;

[0020] Figure 3 It is a circuit structure diagram of the right turn signal output unit circuit;

[0021] Figure 4 It is a circuit structure diagram of the audio output circuit;

[0022] Figure 5 It is a circuit structure diagram of the buck circuit. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts, any modifications, equivalent replacements, improvements, etc., shall be included in the protection scope of the present utility model.

[0024] Such as Figures 1 to 5As shown in the figure, this embodiment discloses an intelligent flashing controller with priority for motor vehicle steering, which includes a control circuit. The control circuit includes a main chip, an input unit circuit, a left turn signal output unit circuit, a right turn signal output unit circuit, an audio output circuit for controlling audio output, and a buck circuit for reducing the 12V power supply to a 5V power supply. The input unit circuit, the left turn signal output unit circuit, the right turn signal output unit circuit, the audio output circuit, and the buck circuit are all electrically connected to the main chip, and the model of the main chip is EH586E.

[0025] The input unit circuit includes an input interface connected to the motor vehicle circuit. The TP2 pin of the input interface is connected to the 12V power supply, and the TP8 pin of the input interface is grounded. The TP3 pin of the input interface is connected to one end of the resistor R3, and the other end of the resistor R3 is respectively connected to one end of the resistor R10, one end of the resistor R5, the cathode of the diode D1, and the PA11 pin of the main chip. The other end of the resistor R10 is connected to the anode of the diode D5, and the cathode of the diode D5, the other end of the resistor R5, and the anode of the diode D1 are all grounded. The TP4 pin of the input interface is respectively connected to one end of the resistor R4 and one end of the resistor R20. The other end of the resistor R20 is connected to the TP1 pin of the left output interface. The other end of the resistor R4 is respectively connected to one end of the resistor R8, one end of the resistor R6, the cathode of the diode D2, and the PA12 pin of the main chip. The other end of the resistor R8 is connected to the anode of the diode D4, and the cathode of the diode D4, the other end of the resistor R6, and the anode of the diode D2 are all grounded. The TP5 pin of the input interface is respectively connected to one end of the resistor R19 and one end of the resistor R21. The other end of the resistor R21 is connected to the TP7 pin of the right output interface. The other end of the resistor R19 is respectively connected to one end of the resistor R18, one end of the resistor R17, the cathode of the diode D7, and the PB1 pin of the main chip. The other end of the resistor R18 is connected to the anode of the diode D8, and the cathode of the diode D8, the other end of the resistor R17, and the anode of the diode D7 are all grounded.

[0026] The VBAT pin of the main chip is respectively connected to the 5V power supply and one end of the capacitor C11, and the other end of the capacitor C11 is grounded. The VDDIO pin of the main chip is connected to one end of the capacitor C12, and the other end of the capacitor C12 is grounded. The GND pin and the AGND pin of the main chip are both grounded.

[0027] The left turn signal output unit circuit includes a left output interface connected to the left turn signal of a motor vehicle; the TP1 pin of the left output interface is respectively connected to one end of a resistor R20 and the drain of a MOS transistor Q2, the source of the MOS transistor Q2 is respectively connected to a 12V power supply and one end of a resistor R16, the gate of the MOS transistor Q2 and the other end of the resistor R16 are respectively connected to the collector of a transistor Q1, the base of the transistor Q1 is respectively connected to one end of a resistor R14 and one end of a resistor R15, the other end of the resistor R14 is connected to the PA4 pin of the main chip, and the other end of the resistor R15 and the emitter of the transistor Q1 are both grounded.

[0028] The right turn signal output unit circuit includes a right output interface connected to the right turn signal of a motor vehicle; the TP7 pin of the right output interface is respectively connected to one end of a resistor R21 and the drain of a MOS transistor Q3, the source of the MOS transistor Q3 is respectively connected to a 12V power supply and one end of a resistor R11, the gate of the MOS transistor Q3 and the other end of the resistor R11 are respectively connected to the collector of a transistor Q4, the base of the transistor Q4 is respectively connected to one end of a resistor R12 and one end of a resistor R13, the other end of the resistor R12 is connected to the PA5 pin of the main chip, and the other end of the resistor R13 and the emitter of the transistor Q4 are both grounded.

[0029] The audio output circuit includes an audio amplifier chip, and the model of the audio amplifier chip is NS4110B; the CTRL pin of the audio amplifier chip is connected to one end of a resistor R1, and the other end of the resistor R1 is connected to a 5V power supply; the BYPASS pin of the audio amplifier chip is connected to one end of a capacitor C7, the INP pin of the audio amplifier chip is connected to one end of a resistor R2, the other end of the resistor R2 is connected to one end of a capacitor C10, and the other ends of the capacitor C10 and the capacitor C7 are both grounded; the INN pin of the audio amplifier chip is connected to one end of a resistor R7, the other end of the resistor R7 is connected to one end of a capacitor C5, and the other end of the capacitor C5 is connected to the PB0 pin of the main chip; the VON pin of the audio amplifier chip is connected to one end of a speaker, and the other end of the speaker is connected to the DACP0 pin of the main chip; the VDD pin of the audio amplifier chip is respectively connected to one end of a capacitor C8 and one end of a capacitor C9, and the other ends of the capacitor C8, the capacitor C9 and the GND pin of the audio amplifier chip are all grounded; the VOP pin of the audio amplifier chip is connected to the DACN0 pin of the main chip.

[0030] The step-down circuit includes a step-down chip, and the model of the step-down chip is ams1117-5. The VIN pin of the step-down chip is respectively connected to one end of capacitor C2, one end of capacitor C1, the cathode of diode D3, and the 12V power supply. The other end of capacitor C2, the other end of capacitor C1, the anode of diode D3, and the GND pin of the step-down chip are all grounded. The VOUT pin of the step-down chip is respectively connected to one end of capacitor C3, one end of capacitor C4, the VBAT pin of the main chip, and one end of resistor R1. The other end of capacitor C3 and the other end of capacitor C4 are both grounded.

[0031] The controller in the present utility model has the following functions:

[0032] 1. Power-on sound and light prompt: When the vehicle ignition switch is turned on, the power supply of the controller is connected. At the same time, through a 5-second 0-delay music ringtone and the left and right turn signals lighting up and then extinguishing, it realizes the interaction between the vehicle and the driver. The controller enters the working standby state.

[0033] 2. Intelligent double flash when braking: When braking, the controller executes the instruction of the front, rear, left, and right turn signals flashing synchronously. After flashing quickly for 5 seconds, it synchronously flashes slowly until the braking ends.

[0034] · When the user brakes during normal turning or fancy strobing, the controller executes the intelligent double flash instruction when braking to warn the vehicles and pedestrians behind and on the left and right, ensuring driving safety. After braking ends, it automatically resumes normal turning or fancy strobing before braking.

[0035] 3. Intelligent fancy strobing: By turning on / off the original vehicle's turn signal switch on either side for 1 second, the fancy strobing function can be activated, realizing the synchronous fancy strobing of the original vehicle's front, rear, left, and right turn signals.

[0036] · There are 3 strobing modes stored in the controller module, and each time it is activated, it is executed in sequence.

[0037] 4. Intelligent steering preference: When the vehicle turns left and right normally, the controller automatically stops the ongoing fancy strobing and realizes the normal turning of the vehicle. During the normal turning process, the controller will synchronously emit a "dong... dong... dong" prompt sound with each flash of the turn signal to warn the vehicles and pedestrians behind and on the left and right, ensuring driving safety.

[0038] In the present utility model, the fancy strobing function of the turn signals can be activated by turning on / off the original vehicle's turn signal switch on either side for 1 second, realizing the synchronous fancy strobing effect of the vehicle's left and right turn signals. And when the vehicle is turning, the fancy strobing function automatically turns off and converts to the normal turn signal indication function. At the same time, the controller will emit a "dong... dong... dong..." prompt sound to warn the vehicles and pedestrians behind and on the left and right, ensuring driving safety.

[0039] On the other hand, when a motor vehicle user brakes during normal steering or fancy strobing, the controller executes a brake intelligent double-flash command to warn the vehicles and pedestrians behind and on the left and right, ensuring driving safety. After braking ends, it automatically resumes normal steering or fancy strobing before braking.

[0040] The utility model adds a fancy strobing function to the motor vehicle turn signal, and while achieving the fancy strobing effect, it preferentially ensures the safety guarantee effect when the motor vehicle is turning or braking; moreover, the installation of this controller does not require damaging the original vehicle wiring of the motor vehicle, and can achieve a lossless installation of the original vehicle wiring, further improving the control effect of the motor vehicle flash lamp.

Claims

1. An intelligent flashing controller with priority for motor vehicle steering, comprising a control circuit, characterized in that: The control circuit includes a main chip, an input unit circuit, a left turn signal output unit circuit, and a right turn signal output unit circuit; the input unit circuit, the left turn signal output unit circuit, and the right turn signal output unit circuit are all electrically connected to the main chip; the input unit circuit includes an input interface connected to the motor vehicle circuit, the TP2 pin of the input interface is connected to a 12V power supply, the TP8 pin of the input interface is grounded, and the TP3 pin, TP4 pin, and TP5 pin of the input interface are all electrically connected to the main chip; the left turn signal output unit circuit includes a left output interface connected to the left turn signal of the motor vehicle, and the TP1 pin of the left output interface is electrically connected to the main chip; the right turn signal output unit circuit includes a right output interface connected to the right turn signal of the motor vehicle, and the TP7 pin of the right output interface is electrically connected to the main chip.

2. The motor vehicle steering priority intelligent flashing controller according to claim 1, characterized in that: The TP3 pin of the input interface is connected to one end of a resistor R3, and the other end of the resistor R3 is respectively connected to one end of a resistor R10, one end of a resistor R5, the cathode of a diode D1, and the PA11 pin of the main chip. The other end of the resistor R10 is connected to the anode of a diode D5. The cathode of the diode D5, the other end of the resistor R5, and the anode of the diode D1 are all grounded; the TP4 pin of the input interface is respectively connected to one end of a resistor R4 and one end of a resistor R20. The other end of the resistor R20 is connected to the TP1 pin of the left output interface. The other end of the resistor R4 is respectively connected to one end of a resistor R8, one end of a resistor R6, the cathode of a diode D2, and the PA12 pin of the main chip. The other end of the resistor R8 is connected to the anode of a diode D4. The cathode of the diode D4, the other end of the resistor R6, and the anode of the diode D2 are all grounded; the TP5 pin of the input interface is respectively connected to one end of a resistor R19 and one end of a resistor R21. The other end of the resistor R21 is connected to the TP7 pin of the right output interface. The other end of the resistor R19 is respectively connected to one end of a resistor R18, one end of a resistor R17, the cathode of a diode D7, and the PB1 pin of the main chip. The other end of the resistor R18 is connected to the anode of a diode D8. The cathode of the diode D8, the other end of the resistor R17, and the anode of the diode D7 are all grounded.

3. The motor vehicle steering priority intelligent flashing controller according to claim 2, characterized in that: The TP1 pin of the left output interface is respectively connected to one end of a resistor R20 and the drain of a MOS transistor Q2. The source of the MOS transistor Q2 is respectively connected to a 12V power supply and one end of a resistor R16. The gate of the MOS transistor Q2 and the other end of the resistor R16 are respectively connected to the collector of a transistor Q1. The base of the transistor Q1 is respectively connected to one end of a resistor R14 and one end of a resistor R15. The other end of the resistor R14 is connected to the PA4 pin of the main chip. The other end of the resistor R15 and the emitter of the transistor Q1 are both grounded.

4. The motor vehicle steering priority intelligent flashing controller according to claim 3, characterized in that: The TP7 pin of the right output interface is respectively connected to one end of the resistor R21 and the drain of the MOS transistor Q3. The source of the MOS transistor Q3 is respectively connected to the 12V power supply and one end of the resistor R11. The gate of the MOS transistor Q3 and the other end of the resistor R11 are respectively connected to the collector of the triode Q4. The base of the triode Q4 is respectively connected to one end of the resistor R12 and one end of the resistor R13. The other end of the resistor R12 is connected to the PA5 pin of the main chip. The other end of the resistor R13 and the emitter of the triode Q4 are both grounded.

5. The intelligent flashing controller with priority for motor vehicle steering according to claim 4, characterized in that: The control circuit further includes an audio output circuit. The audio output circuit includes an audio amplifier chip. The CTRL pin of the audio amplifier chip is connected to one end of the resistor R1. The other end of the resistor R1 is connected to the 5V power supply. The BYPASS pin of the audio amplifier chip is connected to one end of the capacitor C7. The INP pin of the audio amplifier chip is connected to one end of the resistor R2. The other end of the resistor R2 is connected to one end of the capacitor C10. The other end of the capacitor C10 and the other end of the capacitor C7 are both grounded. The INN pin of the audio amplifier chip is connected to one end of the resistor R7. The other end of the resistor R7 is connected to one end of the capacitor C5. The other end of the capacitor C5 is connected to the PB0 pin of the main chip. The VON pin of the audio amplifier chip is connected to one end of the speaker. The other end of the speaker is connected to the DACP0 pin of the main chip. The VDD pin of the audio amplifier chip is respectively connected to one end of the capacitor C8 and one end of the capacitor C9. The other end of the capacitor C8, the other end of the capacitor C9, and the GND pin of the audio amplifier chip are all grounded. The VOP pin of the audio amplifier chip is connected to the DACN0 pin of the main chip.

6. The intelligent flashing controller with priority for motor vehicle steering as claimed in claim 5, characterized in that: The VBAT pin of the main chip is respectively connected to the 5V power supply and one end of the capacitor C11. The other end of the capacitor C11 is grounded. The VDDIO pin of the main chip is connected to one end of the capacitor C12. The other end of the capacitor C12 is grounded. The GND pin and the AGND pin of the main chip are both grounded.

7. The intelligent flash controller with priority for motor vehicle steering according to claim 6, characterized in that: The control circuit further includes a buck circuit. The buck circuit includes a buck chip. The VIN pin of the buck chip is respectively connected to one end of the capacitor C2, one end of the capacitor C1, the cathode of the diode D3, and the 12V power supply. The other end of the capacitor C2, the other end of the capacitor C1, the anode of the diode D3, and the GND pin of the buck chip are all grounded. The VOUT pin of the buck chip is respectively connected to one end of the capacitor C3, one end of the capacitor C4, the VBAT pin of the main chip, and one end of the resistor R1. The other end of the capacitor C3 and the other end of the capacitor C4 are both grounded.

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