Taillight control circuit of electric vehicle and electric vehicle

Abstract

The utility model provides a taillight control circuit of an electric vehicle and the electric vehicle. The taillight control circuit comprises an MCU, a taillight bead module and a lock inlet wire detection circuit. The tail lamp bead module and the lock inlet wire detection circuit are respectively connected with the MCU; the lock inlet wire detection circuit is used for detecting a voltage signal, generating a detection signal according to the voltage signal and sending the detection signal to the MCU; the MCU is used for controlling the tail lamp bead module to be in a power-on water flowing state or a power-off water flowing state according to the detection signal; after the voltage signal is detected through the lock inlet wire detection circuit, the MCU controls the tail lamp bead module to be in the power-on water flowing state or the power-off water flowing state, and therefore electric energy is saved, and user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle control, in particular to a taillight control circuit of an electric vehicle and an electric vehicle. Background Art

[0002] With the continuous innovation of technology in the two-wheeled electric vehicle industry, new technologies are being used more and more in electric two-wheeled vehicles, and taillight functions are also increasing.

[0003] The existing taillight control method is: after the positive pole of the taillight is powered on, the lamp beads are always in a running state, so that after the running state is completed during the day, the taillight is always on, which cannot save energy and has a poor user experience. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a taillight control circuit and an electric vehicle for an electric vehicle. There is no need to power on the positive pole of the taillight. After the voltage signal is detected by the lock incoming line detection circuit, the MCU controls the taillight lamp bead module to be in the upper current water state or the lower current water state, thereby saving energy and improving user experience.

[0005] In a first aspect, an embodiment of the utility model provides a taillight control circuit for an electric vehicle, the circuit comprising an MCU, a taillight lamp module and a lock-in detection circuit;

[0006] The taillight lamp bead module and the lock line detection circuit are respectively connected to the MCU;

[0007] The lock-in detection circuit is used to detect a voltage signal, generate a detection signal according to the voltage signal, and send the detection signal to the MCU;

[0008] The MCU is used to control the taillight lamp bead module to be in an upper current water state or a lower current water state according to the detection signal.

[0009] Furthermore, the lock-in line detection circuit is used to detect a pre-lock voltage signal when the vehicle is powered on, generate a first detection signal according to the pre-lock voltage signal, and send the first detection signal to the MCU;

[0010] The MCU is used to control the taillight lamp bead module to be in a current-on state according to the first detection signal.

[0011] Furthermore, the lock line detection circuit is used to detect a post-lock voltage signal when the vehicle is powered off, generate a second detection signal according to the post-lock voltage signal, and send the second detection signal to the MCU;

[0012] The MCU is used to control the taillight lamp bead module to be in a low current water state according to the second detection signal.

[0013] Furthermore, the current water flow state is that each lamp bead in the taillight lamp bead module is displayed in sequence in a water flow manner, or each string of the lamp beads is displayed in sequence in the water flow manner, wherein each string of the lamp beads includes a plurality of the lamp beads;

[0014] The lower current water flow state is that each lamp bead in the taillight lamp bead module displays the preset time in sequence in the manner of flowing water and then goes out, or each string of lamp beads displays the preset time in sequence in the manner of flowing water and then goes out.

[0015] Furthermore, the taillight lamp bead module includes a plurality of lamp beads, and each of the lamp beads is connected to the MCU after being connected in parallel.

[0016] Furthermore, each of the lamp beads includes a triode, a diode, a first resistor and a second resistor;

[0017] The anode of the diode is connected to Vin, the cathode of the diode is connected to the collector of the transistor, the base of the transistor is respectively connected to one end of the first resistor and one end of the second resistor, and the other end of the second resistor is connected to the emitter of the transistor and then grounded.

[0018] Furthermore, the circuit also includes a power supply circuit;

[0019] The power supply circuit is connected to the MCU and is used to provide a power supply voltage for the MCU, wherein the power supply voltage is 5V.

[0020] Furthermore, the circuit also includes wiring terminals, which are respectively connected to the MCU and the lock-in detection circuit.

[0021] Furthermore, the voltage signal is 61V-81V.

[0022] In a second aspect, an embodiment of the utility model provides an electric vehicle, including the taillight control circuit of the electric vehicle as described above.

[0023] The embodiment of the utility model provides a taillight control circuit of an electric vehicle and an electric vehicle, wherein the circuit comprises an MCU, a taillight lamp bead module and a lock-in line detection circuit; the taillight lamp bead module and the lock-in line detection circuit are respectively connected to the MCU; the lock-in line detection circuit is used to detect a voltage signal, generate a detection signal according to the voltage signal, and send the detection signal to the MCU; the MCU is used to control the taillight lamp bead module to be in an upper current water state or a lower current water state according to the detection signal; there is no need to power on the positive pole of the taillight, and after the voltage signal is detected by the lock-in line detection circuit, the MCU controls the taillight lamp bead module to be in an upper current water state or a lower current water state, thereby saving electric energy and improving user experience.

[0024] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model are realized and obtained by the structures specifically pointed out in the description, claims and drawings.

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A schematic diagram of a taillight control circuit of an electric vehicle provided in Embodiment 1 of the utility model;

[0028] Figure 2 A schematic diagram of the structure of a taillight lamp bead module provided in Embodiment 1 of the present utility model;

[0029] Figure 3 This is a structural schematic diagram of a taillight control circuit for an electric vehicle provided in Embodiment 1 of the utility model.

[0030] icon:

[0031] 1-MCU; 2-tail light module; 3-lock line detection circuit; 4-turn signal module; 5-power supply circuit; 6-connection terminal. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] To facilitate understanding of this embodiment, the embodiment of the utility model is described in detail below.

[0034] Embodiment 1:

[0035] Figure 1This is a schematic diagram of a taillight control circuit for an electric vehicle provided in Embodiment 1 of the utility model.

[0036] Reference Figure 1 , the circuit includes MCU1, tail light lamp module 2 and lock line detection circuit 3;

[0037] The tail light module 2 and the lock line detection circuit 3 are respectively connected to the MCU1;

[0038] The lock-in detection circuit 3 is used to detect the voltage signal, generate a detection signal according to the voltage signal, and send the detection signal to the MCU1;

[0039] MCU1 is used to control the taillight lamp bead module 2 to be in an upper current water state or a lower current water state according to the detection signal.

[0040] Specifically, when the lock-in line detection circuit 3 detects that the voltage signal is between 61V and 81V, a detection signal is generated and sent to the MCU1, and the taillight lamp bead module 2 is controlled by the MCU1.

[0041] Furthermore, the lock-in line detection circuit 3 is used to detect the pre-lock voltage signal when the vehicle is powered on, generate a first detection signal according to the pre-lock voltage signal, and send the first detection signal to the MCU1;

[0042] MCU1 is used to control the taillight lamp bead module 2 to be in a current-on state according to the first detection signal.

[0043] Furthermore, the lock-in line detection circuit 3 is used to detect the post-lock voltage signal when the vehicle is powered off, generate a second detection signal according to the post-lock voltage signal, and send the second detection signal to the MCU1; wherein the post-lock voltage signal is 0;

[0044] MCU1 is used to control the taillight lamp bead module 2 to be in a low current water state according to the second detection signal.

[0045] Furthermore, the current water flow state is that each lamp bead in the taillight lamp bead module 2 is displayed in sequence in a water flow manner, or each string of lamp beads is displayed in sequence in a water flow manner, wherein each string of lamp beads includes a plurality of lamp beads;

[0046] The lower current water state is that each lamp bead in the taillight lamp bead module 2 displays the preset time in sequence in the manner of flowing water and then goes out, or each string of lamp beads displays the preset time in sequence in the manner of flowing water and then goes out.

[0047] Furthermore, the taillight lamp bead module 2 includes a plurality of lamp beads, and each lamp bead is connected to the MCU1 after being connected in parallel.

[0048] Furthermore, each lamp bead includes a triode, a diode, a first resistor and a second resistor;

[0049] The anode of the diode is connected to Vin, the cathode of the diode is connected to the collector of the transistor, the base of the transistor is connected to one end of the first resistor and one end of the second resistor respectively, and the other end of the second resistor is connected to the emitter of the transistor and then grounded.

[0050] Specifically, refer to Figure 2 The taillight lamp module includes lamp beads RED1, RED2, RED3, RED4, RED5, RED6, RED7, RED8, RED9, RED10, RED11, RED12, RED13, RED14, RED15, RED16, RED17, RED18, RED19 and RED20. Each lamp bead includes a transistor, a diode, a first resistor and a second resistor. Here, the structure of the lamp bead RED5 is used as an example for explanation. The anode of the diode LED9 is connected to Vin, the cathode of the diode LED9 is connected to the collector of the transistor Q1, the base of the transistor Q1 is respectively connected to one end of the first resistor R51 and one end of the second resistor R71, and the other end of the second resistor R71 is connected to the emitter of the transistor Q1 and then grounded.

[0051] Further, the circuit also includes a power supply circuit;

[0052] The power supply circuit is connected to the MCU1 and is used to provide a power supply voltage for the MCU1, wherein the power supply voltage is 5V.

[0053] Furthermore, the circuit also includes wiring terminals, which are respectively connected to the MCU and the lock line detection circuit, and are also connected to the turn signal lamp bead module.

[0054] Furthermore, the voltage signal is 61V-81V.

[0055] In a second aspect, an embodiment of the utility model provides an electric vehicle, including the taillight control circuit of the electric vehicle as described above.

[0056] Reference Figure 3 The circuit also includes a turn signal lamp module 4, which is connected to the MCU1. A power supply circuit 5 (MCU-5V power supply circuit) is connected to the MCU1.

[0057] The I / O pin of MCU1 is connected to each lamp bead in the tail light lamp bead module. For example, I / O pin P0.1 is connected to the tail light lamp bead module RED11, I / O pin P0.0 is connected to the tail light lamp bead module RED11, I / O pin P0.1 is connected to the tail light lamp bead module RED12, I / O pin P2.7 is connected to the tail light lamp bead module RED13, etc. The AD detection port of the lock line detection circuit 3 is connected to the I / O pin P3.0 of the MCU.

[0058] The resistors R91 , R92 , R93 and R94 of the lock-in detection circuit 3 are connected in parallel to the pin 4 of the connection terminal 6 .

[0059] The embodiment of the utility model provides a taillight control circuit of an electric vehicle and an electric vehicle, wherein the circuit comprises an MCU, a taillight lamp bead module and a lock-in line detection circuit; the taillight lamp bead module and the lock-in line detection circuit are respectively connected to the MCU; the lock-in line detection circuit is used to detect a voltage signal, generate a detection signal according to the voltage signal, and send the detection signal to the MCU; the MCU is used to control the taillight lamp bead module to be in an upper current water state or a lower current water state according to the detection signal; there is no need to power on the positive pole of the taillight, and after the voltage signal is detected by the lock-in line detection circuit, the MCU controls the taillight lamp bead module to be in an upper current water state or a lower current water state, thereby saving electric energy and improving user experience.

[0060] The computer program product provided in the embodiment of the utility model includes a computer-readable storage medium storing program code. The instructions included in the program code can be used to execute the method described in the previous method embodiment. The specific implementation can be found in the method embodiment, which will not be repeated here.

[0061] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the system and device described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0062] In addition, in the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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.

[0063] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the utility model can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the utility model. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc., which can store program codes.

[0064] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0065] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the utility model, which are used to illustrate the technical solution of the utility model, rather than to limit it. The protection scope of the utility model is not limited thereto. Although the utility model is described in detail with reference to the above-mentioned embodiments, ordinary technicians in this field should understand that any technician familiar with the technical field can still modify the technical solution recorded in the above-mentioned embodiments within the technical scope disclosed by the utility model, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiment of the utility model, and should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A taillight control circuit for an electric vehicle, characterized in that: The circuit includes an MCU, a taillight lamp module and a lock line detection circuit; The taillight lamp bead module and the lock line detection circuit are respectively connected to the MCU; The lock-in detection circuit is used to detect a voltage signal, generate a detection signal according to the voltage signal, and send the detection signal to the MCU; The MCU is used to control the taillight lamp bead module to be in an upper current water state or a lower current water state according to the detection signal.

2. The taillight control circuit of an electric vehicle according to claim 1, characterized in that: The lock-in line detection circuit is used to detect a pre-lock voltage signal when the vehicle is powered on, generate a first detection signal according to the pre-lock voltage signal, and send the first detection signal to the MCU; The MCU is used to control the taillight lamp bead module to be in a current-on state according to the first detection signal.

3. The taillight control circuit of an electric vehicle according to claim 1, characterized in that: The lock line detection circuit is used to detect a post-lock voltage signal when the vehicle is powered off, generate a second detection signal according to the post-lock voltage signal, and send the second detection signal to the MCU; The MCU is used to control the taillight lamp bead module to be in a low current water state according to the second detection signal.

4. The taillight control circuit of an electric vehicle according to claim 1, characterized in that: The current water flow state is that each lamp bead in the tail light lamp bead module is displayed in sequence in a water flow manner, or each string of the lamp beads is displayed in sequence in the water flow manner, wherein each string of the lamp beads includes a plurality of the lamp beads; The lower current water flow state is that each lamp bead in the taillight lamp bead module displays the preset time in sequence in the manner of flowing water and then goes out, or each string of lamp beads displays the preset time in sequence in the manner of flowing water and then goes out.

5. The taillight control circuit of an electric vehicle according to claim 1, characterized in that: The taillight lamp bead module includes a plurality of lamp beads, and each of the lamp beads is connected to the MCU after being connected in parallel.

6. The taillight control circuit of the electric vehicle according to claim 5, characterized in that: Each of the lamp beads includes a triode, a diode, a first resistor and a second resistor; The anode of the diode is connected to Vin, the cathode of the diode is connected to the collector of the transistor, the base of the transistor is connected to one end of the first resistor and one end of the second resistor respectively, and the other end of the second resistor is connected to the emitter of the transistor and then grounded.

7. The taillight control circuit of an electric vehicle according to claim 1, characterized in that: The circuit also includes a power supply circuit; The power supply circuit is connected to the MCU and is used to provide a power supply voltage for the MCU, wherein the power supply voltage is 5V.

8. The taillight control circuit of an electric vehicle according to claim 1, characterized in that: The circuit also includes connection terminals, which are respectively connected to the MCU and the lock-in detection circuit.

9. The taillight control circuit of an electric vehicle according to claim 1, characterized in that: The voltage signal is 61V-81V.

10. An electric vehicle, characterized in that: A taillight control circuit for an electric vehicle comprising any one of claims 1 to 9.

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