Vehicle lamp control system and vehicle thereof

Abstract

The utility model relates to the technical field of vehicle lamps, in particular to a vehicle lamp control system and a vehicle thereof. The control system comprises a power management module connected with a vehicle body power supply end; the vehicle lamp control module is connected with the power management module; the power supply management module and the vehicle lamp control module are connected with the LED light-emitting module; and the environment sensing module comprises an illumination intensity acquisition module and a weather information acquisition module, the weather information acquisition module is connected with the vehicle-mounted computer, and the illumination intensity acquisition module and the weather information acquisition module are both connected with the vehicle lamp control module. According to the vehicle lamp control system and the vehicle with the vehicle lamp control system, through dimming control over the lamp, power loss of the lamp is reduced, energy is saved, and the cruising ability of the travelled distance can be increased.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle lights, in particular to a vehicle light control system and a vehicle thereof. Background Art

[0002] With the development of vehicle technology, new energy vehicles have become the mainstream, and the mileage requirements of new energy vehicles are getting higher and higher. It has become a trend to save battery consumption of other components in the vehicle under existing technical conditions, so that more battery power can contribute to the mileage. Headlights are a relatively power-consuming component in the vehicle. At present, the design of headlights is becoming more and more complex, and the number of LEDs is increasing, which makes the power consumption continue to increase. How to reduce the power consumption of headlights while ensuring the function and increase the mileage is an urgent problem to be solved. Utility Model Content

[0003] The technical problem to be solved by the utility model is: in order to solve the technical problem that the existing vehicle light control consumes a lot of electricity, which in turn has a great impact on the mileage of new energy vehicles, the utility model provides a vehicle light control system and a vehicle thereof, which reduces the power loss of the lamps by dimming control, saves energy, and can increase the mileage endurance.

[0004] The technical solution adopted by the utility model to solve the technical problem is: a vehicle light control system, comprising:

[0005] A power management module is connected to the power supply terminal of the vehicle body;

[0006] A vehicle light control module connected to the power management module;

[0007] An LED light-emitting module, the power management module and the vehicle light control module are both connected to the LED light-emitting module;

[0008] The environment perception module includes: a light intensity acquisition module and a weather information acquisition module, the weather information acquisition module is connected to the vehicle-mounted computer, and the light intensity acquisition module and the weather information acquisition module are both connected to the vehicle light control module.

[0009] Further, specifically, the power management module includes: a protection unit, a voltage reduction unit and a power conversion unit;

[0010] The protection unit and the power conversion unit are both connected to the vehicle body power supply terminal;

[0011] The protection unit and the LED light-emitting module are both connected to the voltage reduction unit;

[0012] The protection unit and the vehicle light control module are both connected to the power conversion unit.

[0013] Further, specifically, the light intensity acquisition module is a photoelectric sensor or an image sensor.

[0014] Further, specifically, the LED light-emitting module includes a driving unit and a light-emitting unit;

[0015] The voltage reduction unit and the light emitting unit are both connected to the driving unit.

[0016] Further, specifically, the vehicle body power supply terminal is connected to an energy storage battery.

[0017] Further, specifically, the protection unit includes: a transient diode PT1, a capacitor PC2, a capacitor PC3, a resistor PR1, a resistor PR4, a resistor PR6, a resistor PR7, a resistor PR8, a resistor PR9, a resistor PR10, a first switch tube PQ1, a second switch tube PQ2, a third switch tube PQ3, a fourth switch tube PQ4, a capacitor PC1 and a first diode PD1;

[0018] The transient diode PT1, the capacitor PC2 and the capacitor PC3 are connected in parallel, one end of which is connected to the vehicle body power supply end, and the other end is connected to the common ground end. The drain of the first switch tube PQ1 is connected to the vehicle body power supply end. One end of the resistor PR1 is connected to the source of the first switch tube PQ1, and the other end of the resistor PR1 is connected to the gate of the first switch tube PQ1. The resistor PR1, the first diode PD1 and the capacitor PC1 are connected in parallel, one end of which is connected in parallel to the source of the second switch tube PQ2, and the other end of which is connected in parallel to the gate of the second switch tube PQ2. The drain of the second switch tube PQ2 is connected to the gate of the second switch tube PQ2. The output end of the protection unit, the drain of the third switch tube PQ3 is connected to the gate of the second switch tube PQ2 via the resistor PR4, one end of the resistor PR6 is connected to the power conversion unit, one end of the resistor PR9 is connected to the car light control module, the other end of the resistor PR9 and one end of the resistor PR10 are both connected to the gate of the fourth switch tube PQ4, the other end of the resistor PR6 and one end of the resistor PR7 are both connected to the drain of the fourth switch tube PQ4, the other end of the resistor PR7 and one end of the resistor PR8 are both connected to the gate of the third switch tube PQ3, and the other end of the resistor PR10 and the other end of the resistor PR8 are both connected to the common ground.

[0019] Further, specifically, the vehicle light control module includes a single chip microcomputer, and the model of the single chip microcomputer is S9KEAZ128AMLH.

[0020] Further, specifically, the voltage reduction unit adopts a BUCK voltage reduction circuit.

[0021] A vehicle comprises the vehicle light control system as described above.

[0022] The beneficial effect of the utility model is that the vehicle light control system of the utility model, the vehicle light control module realizes dimming control of the LED light module based on the light intensity information and weather information obtained by the set environment perception module, and the output current of the LED light module is controlled during the dimming control, so as to realize the adjustment of different brightness of the LED, and the power loss of the LED light module changes with the output current. When the output current is small, the power loss is small and the power consumption is also small. By automatically adjusting the vehicle lights according to the environmental changes, the energy utilization can be maximized, the energy loss is reduced, and the energy is saved, so as to increase the driving mileage endurance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Figure 1 It is a schematic diagram of the system structure of the optimal embodiment of the utility model.

[0025] Figure 2 It is a schematic diagram of the structure of the power management module of the optimal embodiment of the utility model.

[0026] Figure 3 It is a schematic structural diagram of an LED light emitting module according to the best embodiment of the utility model.

[0027] Figure 4 It is a circuit schematic diagram of a protection unit of the optimal embodiment of the utility model.

[0028] Figure 5 It is a circuit schematic diagram of a power conversion unit of the optimal embodiment of the utility model.

[0029] Figure 6 It is a schematic diagram of the buck unit circuit of the optimal embodiment of the utility model.

[0030] Figure 7 It is a circuit schematic diagram of a vehicle light control module according to the best embodiment of the utility model.

[0031] Figure 8 This is a schematic diagram of the driving unit circuit of the optimal embodiment of the utility model.

[0032] Fig. 9 This is a schematic diagram of the light-emitting unit circuit of the optimal embodiment of the utility model.

[0033] In the figure, 1, power management module; 2, car light control module; 3, LED light module; 4, environmental perception module; 5, vehicle computer; 11, protection unit; 12, step-down unit; 13, power conversion unit; 31, drive unit; 32, light unit; 41, light intensity acquisition module; 42, weather information acquisition module. DETAILED DESCRIPTION

[0034] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0035] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] like Figure 1As shown, it is the optimal embodiment of the utility model, a car light control system, including: a power management module 1, connected to the power supply end of the vehicle body; a car light control module 2, connected to the power management module 1; an LED light module 3, the power management module 1 and the car light control module 2 are both connected to the LED light module 3; an environment perception module 4, including: a light intensity acquisition module 41 and a weather information acquisition module 42, the weather information acquisition module 42 is connected to the vehicle-mounted computer 5, and the light intensity acquisition module 41 and the weather information acquisition module 42 are both connected to the car light control module 2. The power management module 1 is used to provide working voltage to each module, and obtain external environmental information through the environmental perception module 4, such as collecting external light intensity through the light intensity collection module 41, and obtaining weather information and sunrise and sunset times from the on-board computer 5 through the weather information acquisition module 42. The light intensity collection module 41 and the weather information acquisition module 42 transmit the collected light intensity information and weather information to the headlight control module 2. The headlight control module 2 performs dimming control on the LED light module 3 based on the obtained light intensity information and weather information. During dimming control, the output current of the LED light module 3 is controlled to achieve different brightness adjustments of the LED. The power loss of the LED light module 3 varies with the output current. When the output current is small, the power loss is small and the amount of electricity used is also less. By automatically adjusting the headlights according to environmental changes, energy utilization can be maximized, energy loss can be reduced, and energy can be saved, thereby increasing the mileage endurance.

[0038] In this embodiment, the vehicle body power supply terminal is connected to the energy storage battery, and the energy storage battery is used to supply power to the vehicle light control system.

[0039] In an embodiment, Figure 2 As shown, the power management module 1 includes: a protection unit 11, a step-down unit 12 and a power conversion unit 13; the protection unit 11 and the power conversion unit 13 are both connected to the power supply end of the vehicle body; the protection unit 11 and the LED light-emitting module 3 are both connected to the step-down unit 12; the protection unit 11 and the car light control module 2 are both connected to the power conversion unit 13.

[0040] like Figure 4As shown, the protection unit 11 includes: a transient diode PT1, a capacitor PC2, a capacitor PC3, a plurality of resistors, a first switch tube PQ1, a second switch tube PQ2, a third switch tube PQ3, a fourth switch tube PQ4, a capacitor PC1 and a first diode PD1; the transient diode PT1, the capacitor PC2 and the capacitor PC3 are connected in parallel, one end of which is connected to the vehicle body power supply end, and the other end is connected to the common ground end, the drain of the first switch tube PQ1 is connected to the vehicle body power supply end, one end of the resistor PR1 is connected to the source of the first switch tube PQ1, the other end of the resistor PR1 is connected to the gate of the first switch tube PQ1, the resistor PR1, the first diode PD1 and the capacitor PC1 are connected in parallel, and one end of the parallel connection is connected to the source of the second switch tube PQ2. The other end of the parallel connection is connected to the gate of the second switch tube PQ2. The drain of the second switch tube PQ2 is the output end of the protection unit 11. The drain of the third switch tube PQ3 is connected to the gate of the second switch tube PQ2 via the resistor PR4. One end of the resistor PR6 is connected to the power conversion unit 13. One end of the resistor PR9 is connected to the vehicle light control module 2. The other end of the resistor PR9 and one end of the resistor PR10 are both connected to the gate of the fourth switch tube PQ4. The other end of the resistor PR6 and one end of the resistor PR7 are both connected to the drain of the fourth switch tube PQ4. The other end of the resistor PR7 and one end of the resistor PR8 are both connected to the gate of the third switch tube PQ3. The other end of the resistor PR10 and the other end of the resistor PR8 are both connected to the common ground.

[0041] like Figure 6 As shown, the buck unit 12 adopts a BUCK buck circuit, and the buck unit 12 includes: multiple resistors, multiple capacitors, multiple inductors and a buck chip DU1, wherein the voltage input pin of the buck chip DU1 can be used as the input end of the buck unit 12, the input end of the buck unit 12 is connected to the output end of the protection unit 11, and the switch control pin of the buck chip DU1 can be used as the output end to power the LED light-emitting module 3.

[0042] like Figure 5 As shown, the input end of the power conversion unit 13 is connected to the vehicle body power supply end, and the signal of the vehicle body power supply end is stabilized at 5V after being stabilized by a 5V voltage stabilizing chip. In other words, the power conversion unit 13 provides a 5V power supply signal for powering the control module. Among them, the integrated chip model of the power conversion unit 13 adopts but is not limited to TJA1028.

[0043] In an embodiment, Figure 7 As shown, the vehicle light control module 2 includes a single chip microcomputer U1, the model of the single chip microcomputer U1 is S9KEAZ128AMLH, and the pin 32 of the single chip microcomputer U1 is connected to the environment sensing module 4. The light intensity information and weather information transmitted by the environment sensing module 4 are obtained.

[0044] In an embodiment, Figure 3 As shown, the LED light-emitting module 3 includes a driving unit 31 and a light-emitting unit 32, and the step-down unit 12 and the light-emitting unit 32 are both connected to the driving unit 31. Figure 8-Figure 9 As shown, the driving unit 31 includes a driving chip, and the output end of the step-down unit 12 is connected to the driving chip for controlling the light-emitting unit 32. The light-emitting unit 32 includes a plurality of light strings, each light string includes at least 3 light-emitting diodes, each light-emitting diode is connected in series, and the model of each light-emitting diode is but not limited to KR DMLQ32.23. In addition, a capacitor is connected in parallel to each light-emitting diode to balance the current on the light-emitting diode, so that the circuit works more stably and the stability of the circuit is further improved.

[0045] In an embodiment, the light intensity acquisition module 41 is a photoelectric sensor or an image sensor, but is not limited thereto.

[0046] A vehicle comprises the above vehicle light control system.

[0047] To sum up, in the vehicle light control system of the present invention, the vehicle light control module 2 realizes dimming control of the LED light module 3 based on the light intensity information and weather information obtained by the set environment perception module 4. During the dimming control, the output current of the LED light module 3 is controlled to achieve adjustment of different LED brightness. The power loss of the LED light module 3 changes with the output current. When the output current is small, the power loss is small and the amount of electricity used is also less. By automatically adjusting the vehicle lights according to environmental changes, energy utilization can be maximized, energy loss is reduced, and energy is saved, which can increase the driving mileage endurance.

[0048] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A vehicle light control system, characterized in that: include: A power management module (1) is connected to a power supply terminal of the vehicle body; A vehicle light control module (2) connected to the power management module (1); An LED light-emitting module (3), the power management module (1) and the vehicle light control module (2) being both connected to the LED light-emitting module (3); The environment perception module (4) comprises: a light intensity acquisition module (41) and a weather information acquisition module (42), wherein the weather information acquisition module (42) is connected to the vehicle-mounted computer (5), and the light intensity acquisition module (41) and the weather information acquisition module (42) are both connected to the vehicle light control module (2).

2. The vehicle light control system according to claim 1, characterized in that: The power management module (1) comprises: a protection unit (11), a voltage reduction unit (12) and a power conversion unit (13); The protection unit (11) and the power conversion unit (13) are both connected to the vehicle body power supply terminal; The protection unit (11) and the LED light-emitting module (3) are both connected to the voltage reduction unit (12); The protection unit (11) and the vehicle light control module (2) are both connected to the power conversion unit (13).

3. The vehicle light control system according to claim 1, characterized in that: The light intensity acquisition module (41) is a photoelectric sensor or an image sensor.

4. The vehicle light control system according to claim 2, characterized in that: The LED light-emitting module (3) comprises a driving unit (31) and a light-emitting unit (32); The voltage reduction unit (12) and the light emitting unit (32) are both connected to the driving unit (31).

5. The vehicle light control system according to claim 1, characterized in that: The vehicle body power supply end is connected to the energy storage battery.

6. The vehicle light control system according to claim 2, characterized in that: The protection unit (11) comprises: a transient diode PT1, a capacitor PC2, a capacitor PC3, a resistor PR1, a resistor PR4, a resistor PR6, a resistor PR7, a resistor PR8, a resistor PR9, a resistor PR10, a first switch tube PQ1, a second switch tube PQ2, a third switch tube PQ3, a fourth switch tube PQ4, a capacitor PC1 and a first diode PD1; The transient diode PT1, the capacitor PC2 and the capacitor PC3 are connected in parallel, one end of which is connected to the vehicle body power supply end, and the other end is connected to the common ground end. The drain of the first switch tube PQ1 is connected to the vehicle body power supply end. One end of the resistor PR1 is connected to the source of the first switch tube PQ1, and the other end of the resistor PR1 is connected to the gate of the first switch tube PQ1. The resistor PR1, the first diode PD1 and the capacitor PC1 are connected in parallel, one end of which is connected in parallel to the source of the second switch tube PQ2, and the other end of which is connected in parallel to the gate of the second switch tube PQ2. The drain of the second switch tube PQ2 is a protection unit (11). ), the drain of the third switch tube PQ3 is connected to the gate of the second switch tube PQ2 via the resistor PR4, one end of the resistor PR6 is connected to the power conversion unit (13), one end of the resistor PR9 is connected to the vehicle light control module (2), the other end of the resistor PR9 and one end of the resistor PR10 are both connected to the gate of the fourth switch tube PQ4, the other end of the resistor PR6 and one end of the resistor PR7 are both connected to the drain of the fourth switch tube PQ4, the other end of the resistor PR7 and one end of the resistor PR8 are both connected to the gate of the third switch tube PQ3, and the other end of the resistor PR10 and the other end of the resistor PR8 are both connected to the common ground.

7. The vehicle light control system according to claim 1, characterized in that: The vehicle light control module (2) comprises a single chip microcomputer, the model of which is S9KEAZ128AMLH.

8. The vehicle light control system according to claim 6, characterized in that: The voltage reduction unit (12) adopts a BUCK voltage reduction circuit.

9. A vehicle, characterized in that: The vehicle includes the vehicle light control system according to any one of claims 1 to 8.

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