Automobile lamp driving circuit and automobile

Abstract

The utility model relates to the technical field of automobiles, and discloses an automobile lamp driving circuit and an automobile, the automobile lamp driving circuit is used for driving a steering lamp and a position lamp, the automobile lamp driving circuit is respectively connected with a position lamp power supply relay, a driving module and a voltage regulation module, and the automobile lamp driving circuit comprises a power supply control module and a voltage regulation module, the first end of the power supply control module is connected with the position lamp power supply relay, the second end of the power supply control module is connected with the voltage regulation module, and the control end of the power supply control module is connected with the driving module; wherein the power supply control module is used for receiving a control signal and controlling the disconnection and connection between the position lamp power supply relay and the voltage regulation module, so that when the steering lamp is driven, the voltage of the position lamp power supply relay is cut off and transmitted to the steering lamp, and the control signal is sent by the driving module. The problem of inaccurate steering lamp diagnosis of a shared power supply lamp is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile, concretely relates to automobile lamps and lanterns drive circuit and car. BACKGROUND

[0002] With the development of automobile lighting technology, the LED lamps and lanterns of low power and high brightness are applied more and more widely, in order to further reduce the cost, the common source drive mode becomes the choice of most lamps and lanterns manufacturers, that is, a plurality of LED loads are driven by a core drive circuit, at the same time, in order to meet the requirements of relevant regulations, many lamps and lanterns internally have priority control circuit, which further simplifies the traditional body controller (BCM) drive logic. The BCM realizes the open circuit, overcurrent and short circuit diagnostic functions of the lamps and lanterns by collecting the size of the drive current.

[0003] In the related art, when the position lamp and the turn signal lamp need to work simultaneously, the position lamp on the side of the turn signal lamp is required to be closed, but other position lamps of the whole vehicle cannot be closed, that is, the turn signal lamp driving chip of the BCM controls the power supply relay of the position lamp to make the storage battery supply power to the position lamp while supplying power to the turn signal lamp. That is to say, only when the turn signal lamp works and the position lamp on the side of the turn signal lamp does not work, the position lamp power supply relay and the turn signal lamp driving chip supply power to the turn signal lamp at the same time, which causes the BCM to detect that the actual output of the turn signal lamp drive current is smaller than when the turn signal lamp is independently powered, and further causes the turn signal lamp to be misdiagnosed as open circuit. That is, in the lamp and lantern sharing power supply, the diagnosis of the turn signal lamp is inaccurate. SUMMARY

[0004] Therefore, the utility model provides a kind of automobile lamps and lanterns drive circuit and car to solve the problem that the diagnosis of the turn signal lamp of lamp and lantern sharing power supply is inaccurate.

[0005] In the first aspect, the utility model provides a kind of automobile lamps and lanterns drive circuit, automobile lamps and lanterns drive circuit is used to drive turn signal lamp and position lamp, automobile lamps and lanterns drive circuit is connected with position lamp power supply relay, drive module and voltage regulation module respectively, and automobile lamps and lanterns drive circuit includes:

[0006] Power supply control module, the first end of power supply control module is connected with position lamp power supply relay, the second end of power supply control module is connected with voltage regulation module, and the control end of power supply control module is connected with drive module;

[0007] Wherein, power supply control module is used to receive control signal, and the disconnection and conduction between position lamp power supply relay and voltage regulation module are controlled, to shut off the voltage transmission of position lamp power supply relay to turn signal lamp when driving turn signal lamp, wherein, control signal is sent by drive module.

[0008] The automobile lamp driving circuit provided by the utility model, through the power supply control module and the driving module connection, based on the driving module in the detection when the turn signal lamp works, disconnect the position lamp power supply relay and the voltage regulation module connection, thereby, prevent the current transmission of the storage battery to the voltage regulation module after the turn signal lamp power supply, further, the turn signal lamp is only powered by the turn signal lamp driving chip, the power supply voltage of the turn signal lamp driving chip will not reduce, solve the problem that the BCM is not accurate to the diagnosis of the turn signal lamp.

[0009] In an alternative embodiment, the driving module comprises: a front position lamp driving unit, the front position lamp driving unit being configured to control a front position lamp driving tube, and the power supply control module comprises:

[0010] a synchronous switch unit, a first end of the synchronous switch unit being connected with the position lamp power supply relay, a second end of the synchronous switch unit being connected with the voltage regulation module, and a control end of the synchronous switch unit being connected with the front position lamp driving unit, wherein the control signal is sent by the front position lamp driving unit.

[0011] In an alternative embodiment, the front position lamp driving unit comprises a first switch tube and a second switch tube, a control end of the first switch tube being connected with a turn signal lamp driving end, a first end of the first switch tube being connected with a control end of the second switch tube and a front position lamp driving end respectively, a first end of the second switch tube being connected with the front position lamp driving tube, a second end of the first switch tube being grounded, and a second end of the second switch tube being grounded.

[0012] The synchronous switch unit comprises:

[0013] a P-type MOS tube, a control end of the P-type MOS tube being connected with the first end of the second switch tube, a first end of the P-type MOS tube being connected with the position lamp power supply relay, and a second end of the P-type MOS tube being connected with the voltage regulation module.

[0014] In an alternative embodiment, the synchronous switch unit and the front position lamp driving tube are replaced by a synchronous double-acting relay.

[0015] In an alternative embodiment, the driving module comprises: a turn signal lamp driving unit, the turn signal lamp driving unit being configured to control a turn signal lamp, and the power supply control module comprises:

[0016] an asynchronous switch unit, a first end of the asynchronous switch unit being connected with the position lamp power supply relay, a second end of the asynchronous switch unit being connected with the voltage regulation module, and a control end of the asynchronous switch unit being connected with the turn signal lamp driving unit, wherein the control signal is sent by the turn signal lamp driving unit.

[0017] In an alternative embodiment, the turn signal lamp driving unit comprises: a third driving tube, a control end of the third driving tube being connected with a turn signal lamp driving end, a first end of the third driving tube being connected with a turn signal lamp driving tube, and a second end of the third driving tube being grounded.

[0018] The asynchronous switch unit comprises:

[0019] The N-type MOS tube has a control end connected with the first end of the third driving tube, a first end connected with the position lamp power supply relay, and a second end connected with the voltage regulation module.

[0020] In an alternative embodiment, the asynchronous switch unit and the turn signal driving tube are replaced by an asynchronous double-pole relay.

[0021] In an alternative embodiment, the automobile lamp driving circuit further comprises:

[0022] The first resistor has a first end connected with the position lamp power supply relay and a second end connected with the control end of the power supply control module.

[0023] The second resistor has a first end connected with the second end of the first resistor and a second end connected with the driving module.

[0024] In an alternative embodiment, the voltage regulation module comprises a first diode and a regulation unit.

[0025] The power supply control module has a first end connected with the position lamp power supply relay, a second end connected with the first end of the first diode, and the first diode has a second end connected with the regulation unit; or,

[0026] The first diode has a first end connected with the position lamp power supply relay, the power supply control module has a first end connected with the second end of the first diode, and a second end connected with the regulation unit.

[0027] In a second aspect, the utility model provides a kind of automobile, and the automobile includes the above automobile lamp driving circuit. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the drawings needed in the specific embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0029] Figure 1 It is a kind of automobile lamp driving circuit structural diagram according to the utility model embodiment;

[0030] Figure 2 It is another automobile lamp driving circuit structural diagram according to the utility model embodiment;

[0031] Figure 3 is a detailed structure diagram of another automobile lamp driving circuit according to an embodiment of the utility model;

[0032] Figure 4 is a structure diagram of still another automobile lamp driving circuit according to an embodiment of the utility model;

[0033] Figure 5 is a detailed structure diagram of still another automobile lamp driving circuit according to an embodiment of the utility model;

[0034] Figure 6 is an application schematic diagram of a automobile lamp driving circuit according to an embodiment of the utility model.

[0035] Explanation of reference numerals:

[0036] 10-power supply control module; BCM-vehicle body controller; B1-position lamp power supply relay; B2-voltage regulation module; B3-driving module; 11-synchronous switch unit; 12-asynchronous switch unit; K1-front position lamp driving tube; K2-steering lamp driving tube; B31-front position lamp driving unit; B32-steering lamp driving unit; K3-P type MOS tube; K4-N type MOS tube; R1-first resistor; R2-second resistor; R3-third resistor; R4-fourth resistor; R5-fifth resistor; R6-sixth resistor; R7-seventh resistor; R8-eighth resistor; R9-ninth resistor; R10-tenth resistor; R11-eleventh resistor; R12-twelfth resistor; D1-first diode; D2-second diode; D3-third diode; D4-fourth diode; Q1-first switch tube; Q2-second switch tube; Q3-third driving tube. DETAILED DESCRIPTION

[0037] The technical solutions of the utility model will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0038] In the description of the utility model, it needs to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or position relation based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0039] In the description of the utility model, it needs to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or position relation based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0040] In addition, the technical features involved in the different embodiments of the utility model described below can be combined with each other as long as there is no conflict.

[0041] With the development of automobile lighting technology, low-power high-brightness LED lamps are applied more and more widely, in order to further reduce the cost, the common source driving mode becomes the choice of most lamp manufacturers, that is, multiple LED loads are driven by a core driving circuit, at the same time, in order to meet the requirements of relevant regulations, many lamps internally have priority control circuit, which further simplifies the traditional body controller (BCM) driving logic. The BCM realizes the open circuit, overcurrent and short circuit diagnosis function of the lamp by collecting the size of the driving current.

[0042] In the related art, when the position lamp and the turn signal lamp need to work at the same time, the position lamp on the side of the turn signal lamp is required to be closed, but other position lamps of the whole vehicle cannot be closed, that is, the turn signal lamp driving chip of the BCM supplies power to the turn signal lamp at the same time, and controls the position lamp power supply relay to make the storage battery supply power to the position lamp. That is to say, only when the turn signal lamp works and the position lamp on the side of the turn signal lamp does not work, the position lamp power supply relay and the turn signal lamp driving chip supply power to the turn signal lamp at the same time, which causes the BCM to detect that the actual output of the turn signal lamp driving current is smaller than that when the turn signal lamp is independently powered, and further causes the turn signal lamp to be misdiagnosed as open circuit. That is, in the lamp sharing power supply, the diagnosis of the turn signal lamp is not accurate.

[0043] To this end, the utility model provides a kind of automobile lamp driving circuit, as Figure 1As shown, the automobile lamp driving circuit is used to drive the turn signal lamp and the position lamp, the automobile lamp driving circuit is connected with the position lamp power supply relay B1, the driving module B3 and the voltage regulation module B2 respectively, and the automobile lamp driving circuit comprises:

[0044] The power supply control module 10 is connected with the position lamp power supply relay B1 at the first end, connected with the voltage regulation module B2 at the second end, and connected with the driving module B3 at the control end.

[0045] The power supply control module 10 is used to receive the control signal, control the disconnection and conduction between the position lamp power supply relay B1 and the voltage regulation module B2, and cut off the voltage transmission of the position lamp power supply relay B1 to the turn signal lamp when driving the turn signal lamp, wherein the control signal is sent by the driving module B3.

[0046] Reference Figure 1 The position lamp comprises the front position lamp and other position lamps, and the other position lamps can be rear position lamps or upper position lamps, etc. If the turn signal lamp is a left turn signal lamp, the front position lamp is also a left front position lamp, and the other position lamps comprise a right position lamp at this time. The MCU of the body controller BCM controls the turn signal lamp driving chip and the position lamp power supply relay driving chip respectively, the turn signal lamp driving chip is used to drive the turn signal lamp and supply power to the turn signal lamp, and the position lamp power supply relay driving chip is used to supply power to the front position lamp and the other position lamps and drive the front position lamp. The voltage regulation module B2 is used to regulate the turn signal lamp power supply voltage and the front position lamp power supply voltage. The driving module B3 is used to drive the turn signal lamp and the front position lamp respectively, and the driving module B3 controls the priority, and stops driving the front position lamp when the turn signal lamp works. Thus, the front position lamp is closed only when the turn signal lamp works.

[0047] Since the front position lamp needs to be closed but the other position lamps need to work when the turn signal lamp works, the position lamp power supply relay driving chip makes the position lamp power supply relay B1 conduct, so that the other position lamps are supplied with power by the storage battery, but at this time, the current of the storage battery flows into the voltage regulation module at the same time, so that the storage battery and the turn signal lamp power supply source supply power to the turn signal lamp at the same time, which leads to inaccurate diagnosis of the turn signal lamp.

[0048] Specifically, the power supply control module 10 is connected with the driving module B3, based on the fact that the driving module B3 disconnects the connection between the position lamp power supply relay B1 and the voltage regulation module B2 when detecting that the turn signal lamp works, so that the current of the storage battery is prevented from being transmitted to the voltage regulation module B2 to supply power to the turn signal lamp, and thus the turn signal lamp is only supplied with power by the turn signal lamp driving chip, and the power supply voltage of the turn signal lamp driving chip will not be reduced, thereby solving the problem of inaccurate diagnosis of the turn signal lamp by the BCM.

[0049] In some optional embodiments, asFigure 2 As shown in FIG. 1, the driving module B3 comprises a front position lamp driving unit B31 for controlling the front position lamp driving pipe K1, and the power supply control module 10 comprises:

[0050] a synchronous switch unit 11, a first end of the synchronous switch unit 11 being connected with the position lamp power supply relay B1, a second end of the synchronous switch unit 11 being connected with the voltage regulation module B2, and a control end of the synchronous switch unit 11 being connected with the front position lamp driving unit B31, wherein the control signal is sent by the front position lamp driving unit B31.

[0051] Specifically, referring to FIG. 2, Figure 2 the driving module B3 comprises the front position lamp driving unit B31 and a steering lamp driving unit B32, the front position lamp driving unit B31 is used for controlling the opening and closing of the front position lamp driving pipe K1, and the steering lamp driving unit B32 is used for controlling the opening and closing of the steering lamp driving pipe K2. The synchronous switch unit 11 is connected with the front position lamp driving unit B31, and the synchronous switch unit 11 is synchronized with the opening and closing of the front position lamp. That is, when the front position lamp driving unit B31 sends a closing signal to the front position lamp driving pipe K1, it also sends a closing signal to the synchronous switch unit 11, so as to prevent the current of the storage battery from being transmitted to the voltage regulation module B2 to supply power to the steering lamp. Optionally, the synchronous switch unit 11 can be a triode, a relay, a MOS tube or other devices used for switching.

[0052] It should be noted that the front position lamp driving pipe K1 and the steering lamp driving pipe K2 are PMOS tubes respectively. The front position lamp driving unit B31 is a priority control unit, which outputs a closing signal to the front position lamp driving pipe K1 when driving the steering lamp, and outputs an opening signal to the front position lamp driving pipe K1 when not driving the steering lamp and driving the front position lamp.

[0053] In some optional embodiments, as shown in FIG. 3, Figure 3 the front position lamp driving unit B31 comprises a first switch tube Q1 and a second switch tube Q2, a control end of the first switch tube Q1 being connected with the steering lamp driving end, a first end of the first switch tube Q1 being connected with a control end of the second switch tube Q2 and the front position lamp driving end respectively, a first end of the second switch tube Q2 being connected with the front position lamp driving pipe K1, a second end of the first switch tube Q1 being grounded, and a second end of the second switch tube Q2 being grounded.

[0054] The synchronous switch unit 11 comprises:

[0055] a P-type MOS tube K3, a control end of the P-type MOS tube K3 being connected with the first end of the second switch tube Q2, a first end of the P-type MOS tube K3 being connected with the position lamp power supply relay B1, and a second end of the P-type MOS tube K3 being connected with the voltage regulation module B2.

[0056] Specifically, referring to Figure 3 , the turn signal driving end is the output end of the turn signal driving chip, and the front position lamp driving end is the output end of the position lamp power supply relay driving chip. When the turn signal driving chip outputs a driving signal, the first switch tube Q1 is turned on, and the control end of the second switch tube Q2 is pulled low, so that the second switch tube Q2 is closed. At this time, whether the front position lamp driving end outputs a driving signal, the second switch tube Q2 will be closed. When the second switch tube Q2 is closed, the control end voltage of the P-type MOS tube K3 and the front position lamp driving tube K1 is raised at the same time, so as to output a closing signal to the P-type MOS tube K3 and the front position lamp driving tube K1. At the same time, the position lamp power supply relay B1 is closed to supply power to the voltage regulation module B2, and the front position lamp is closed. It should be noted that the turn signal driving chip outputs a driving signal of 24V, and outputs a driving signal of 0V when not outputting a driving signal. The position lamp power supply relay driving chip outputs a driving signal of 24V, and outputs a driving signal of 0V when not outputting a driving signal.

[0057] In addition, referring to Figure 3 , the third resistor R3 and the fourth resistor R4 are used to drive the front position lamp driving tube K1, the fifth resistor R5 and the sixth resistor R6 are used to drive the second switch tube Q2, the seventh resistor R7 and the eighth resistor R8 are used to drive the first switch tube Q1, the third diode D3 is used to control the current flow direction transmitted to the second switch tube Q2, and the fourth diode D4 is used to control the current flow direction transmitted to the first switch tube Q1.

[0058] In some alternative embodiments, the synchronous switch unit 11 and the front position lamp driving tube K1 are replaced by a synchronous double-acting relay.

[0059] Specifically, when the synchronous double-acting relay receives a closing signal, the connection between the position lamp power supply relay B1 and the voltage regulation module B2 is closed, and the connection between the voltage regulation module B2 and the front position lamp is closed.

[0060] In some alternative embodiments, as shown in Figure 4 , the driving module B3 includes: a turn signal driving unit B32, the turn signal driving unit B32 is used to control the turn signal, and the power supply control module 10 includes:

[0061] an asynchronous switch unit 12, a first end of the asynchronous switch unit 12 is connected with the position lamp power supply relay B1, a second end of the asynchronous switch unit 12 is connected with the voltage regulation module B2, and a control end of the asynchronous switch unit 12 is connected with the turn signal driving unit B32, wherein the control signal is sent by the turn signal driving unit B32.

[0062] Specifically, referring to Figure 4, the turn light driving unit B32 is used to control the turn light driving pipe K2 to open and close. The asynchronous switch unit 12 and the turn light driving unit B32 are connected, and the asynchronous switch unit 12 and the turn light are asynchronous in opening and closing. That is, when the turn light driving unit B32 sends an opening signal to control the turn light, a closing signal is sent to the asynchronous switch unit 12, so that the current of the storage battery is prevented from being transmitted to the voltage regulation module B2 to power the turn light. Alternatively, the asynchronous switch unit 12 can be a triode, a relay, a MOS tube and the like for switching devices.

[0063] In some alternative embodiments, as shown in Figure 5 , the turn light driving unit B32 comprises: a third driving pipe Q3, a control end of the third driving pipe Q3 being connected with the turn light driving end, a first end of the third driving pipe Q3 being connected with the turn light driving pipe K2, and a second end of the third driving pipe Q3 being grounded.

[0064] The asynchronous switch unit 12 comprises:

[0065] An N-type MOS tube K4, a control end of the N-type MOS tube K4 being connected with the first end of the third driving pipe Q3, a first end of the N-type MOS tube K4 being connected with the position light power supply relay B1, and a second end of the N-type MOS tube K4 being connected with the voltage regulation module B2.

[0066] Specifically, referring to Figure 5 , the turn light driving end is an output end of the turn light driving chip. When the turn light driving chip outputs a driving signal, the third driving pipe Q3 is turned on, the control end of the turn light driving pipe K2 is pulled down, the turn light driving pipe K2 is turned on, the turn light is turned on, and at the same time, when the control end of the turn light driving pipe K2 is pulled down, the N-type MOS tube K4 is turned off, preventing the current of the storage battery from being transmitted to the voltage regulation module B2 to power the turn light.

[0067] In addition, referring to Figure 5 , the ninth resistor R9 and the tenth resistor R10 are used to drive the turn light driving pipe K2, the eleventh resistor R11 and the twelfth resistor R12 are used to drive the third driving pipe Q3, and the fifth diode D5 is used to control the current flowing direction transmitted to the third driving pipe Q3.

[0068] In some alternative embodiments, the asynchronous switch unit 12 and the turn light driving pipe K2 are replaced by an asynchronous double-knife relay.

[0069] Specifically, when the asynchronous double-knife relay receives an opening signal, the connection between the position light power supply relay B1 and the voltage regulation module B2 is closed, and the connection between the voltage regulation module B2 and the turn light is opened.

[0070] In some alternative embodiments, as shown in Figure 3Or 5, the automobile lamp driving circuit further comprises:

[0071] The first resistor R1 has a first end connected with the position lamp power supply relay B1 and a second end connected with a control end of the power supply control module 10.

[0072] The second resistor R2 has a first end connected with the second end of the first resistor R1 and a second end connected with the driving module B3.

[0073] It should be noted that the first resistor R1 and the second resistor R2 are used for driving the N-type MOS tube K4 or the P-type MOS tube K3.

[0074] In some optional embodiments, as Figure 6 The voltage regulation module B2 comprises a first diode D1 and a regulation unit.

[0075] The first end of the power supply control module 10 is connected with the position lamp power supply relay B1, the second end of the power supply control module 10 is connected with the first end of the first diode D1, and the second end of the first diode D1 is connected with the regulation unit.

[0076] Specifically, the first diode D1 is used for controlling the current direction of the position lamp power supply relay B1, the second diode D2 is used for controlling the current direction of the steering lamp driving chip, and the regulation unit is a DC-DC direct current voltage regulation unit.

[0077] The first end of the first diode D1 is connected with the position lamp power supply relay B1, the first end of the power supply control module 10 is connected with the second end of the first diode D1, and the second end of the power supply control module 10 is connected with the regulation unit.

[0078] Referring to (A) in Figure 6 The power supply control module 10 can be arranged between the position lamp power supply relay B1 and the first diode D1. Figure 6 Referring to (B) in The power supply control module 10 can be arranged between the first diode D1 and the regulation unit.

[0079] In the embodiment, the utility model provides a kind of automobile, and the automobile includes the automobile lamp driving circuit and position lamp and steering lamp as above, is connected with driving module B3 by power supply control module 10, based on driving module B3 when detecting steering lamp works, disconnect the connection of position lamp power supply relay B1 and voltage regulation module B2, so that, prevent the current transmission of battery to voltage regulation module B2 after giving power supply to steering lamp, and then, steering lamp is only powered by steering lamp driving chip, the power supply voltage of steering lamp driving chip will not reduce, solve the problem that BCM is not accurate to the diagnosis of steering lamp.

[0080] Although the embodiments of the present application are described in conjunction with the drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope of the appended claims.

Claims

1. An automotive lamp driving circuit, characterized by comprising: The automobile lamp driving circuit is used for driving the turn signal lamp and the position lamp, and is connected with the position lamp power supply relay, the driving module and the voltage regulation module respectively. The power supply control module is connected with the position lamp power supply relay at the first end, connected with the voltage regulation module at the second end, and connected with the driving module at the control end. The power supply control module is used for receiving the control signal, controlling the disconnection and conduction between the position lamp power supply relay and the voltage regulation module, and turning off the voltage transmission of the position lamp power supply relay to the turn signal lamp when the turn signal lamp is driven.

2. The automotive lamp driving circuit according to claim 1, characterized by The driving module comprises a front position lamp driving unit used for controlling the front position lamp driving tube. The synchronous switch unit is connected with the position lamp power supply relay at the first end, connected with the voltage regulation module at the second end, and connected with the front position lamp driving unit at the control end.

3. The automotive lamp driving circuit according to claim 2, characterized by The front position lamp driving unit comprises a first switch tube and a second switch tube. The synchronous switch unit comprises a P-type MOS tube. The synchronous switch unit and the front position lamp driving tube are replaced by a synchronous double-knife relay.

4. The automotive lamp driving circuit according to claim 2, characterized by The driving module comprises a turn signal lamp driving unit used for controlling the turn signal lamp.

5. The automotive lamp driving circuit according to claim 1, characterized by The asynchronous switch unit is connected with the position lamp power supply relay at the first end, connected with the voltage regulation module at the second end, and connected with the turn signal lamp driving unit at the control end. The turn signal lamp driving unit comprises a third driving tube.

6. The automotive lamp driving circuit according to claim 5, wherein The asynchronous switch unit comprises an N-type MOS tube. The asynchronous switch unit and the turn signal lamp driving tube are replaced by an asynchronous double-knife relay. ​ 7. The automotive lamp driving circuit according to claim 5, wherein ​ 8. The automotive lamp driving circuit according to claim 1, characterized by The automobile lamp driving circuit further comprises: a first resistor, a first end of the first resistor being connected with the position lamp power supply relay, and a second end of the first resistor being connected with a control end of the power supply control module; a second resistor, a first end of the second resistor being connected with the second end of the first resistor, and a second end of the second resistor being connected with the driving module.

9. The automotive lamp driving circuit according to claim 1, wherein The voltage regulation module comprises a first diode and a regulation unit; a first end of the power supply control module is connected with the position lamp power supply relay, a second end of the power supply control module is connected with a first end of the first diode, and a second end of the first diode is connected with the regulation unit; or, a first end of the first diode is connected with the position lamp power supply relay, a first end of the power supply control module is connected with a second end of the first diode, and a second end of the power supply control module is connected with the regulation unit.

10. An automobile characterized by comprising: The automobile comprises the automobile lamp driving circuit according to any one of claims 1 to 9.

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