Intelligent automobile model general controller

Abstract

The utility model belongs to the field of control equipment provides a kind of intelligent car model general controller, comprising: 3.3V power supply circuit, 5V power supply circuit, battery charging and discharging circuit, processor and with the circuit detection circuit of processor connection, motor drive circuit, steering engine drive circuit, button interaction circuit, indicator light display circuit, serial communication circuit, buzzer circuit;The utility model constructs 4 half-bridge drive circuit by 2 integrated half-bridge drive chips IR2184s, effectively reduces the module volume, simplifies circuit, so that the integrated volume of control body is smaller;By leading out 1 way encoder interface, the real-time acquisition of motor actual speed is realized.

Description

Technical Field

[0001] This utility model relates to the field of control equipment, and in particular to a universal controller for intelligent car models. Background Technology

[0002] As the types of intelligent car competitions increase, the requirements for the corresponding control circuits also become more demanding.

[0003] Currently, there is no universal controller on the market that meets the requirements of the competition. Participants typically use individual modules to build separate control circuits to meet their functional needs, but this method suffers from problems such as time-consuming construction, susceptibility to damage, large space requirements, limited functionality, and high cost. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a universal controller for intelligent car models, which solves the problems of current controllers such as long construction time for control circuits, easy damage, large space occupation, single function and high cost.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] A universal controller for intelligent car models includes: a 3.3V power supply circuit, a 5V power supply circuit, a battery charging and discharging circuit, a processor, and a circuit detection circuit, a motor drive circuit, a servo drive circuit, a button interaction circuit, an indicator light display circuit, a serial communication circuit, and a buzzer circuit connected to the processor; the processor includes: a microcontroller U10; the motor drive circuit includes: inverters U3 and U4, AND gates U6 and U8, IR2184 driver chip U5 and U9, resistors R8, R9, R10, R13, R16, R17, R20, and R21, capacitors C23, C24, C25, C26, and C27, diodes D3 and D4, IRLR7843 components Q2, Q3, Q4, and Q5, an encoder interface J3, and a terminal J4;

[0007] The battery charging and discharging circuit is connected to the 5V power supply circuit, the motor drive circuit, and the servo drive circuit, respectively; the 5V power supply circuit is connected to the 3.3V power supply circuit; pin 4 of inverter U3 is connected to pin 16 of microcontroller U10; pin 4 of inverter U4 is connected to pin 17 of microcontroller U10; the output pin of AND gate U6 is connected to pin 1 of IR2184 driver chip U5; the output pin of AND gate U8 is connected to pin 1 of IR2184 driver chip U9; pin 2 of IR2184 driver chip U5 is connected to a resistor. R10 is connected; pin 2 of IR2184 driver chip U9 is connected to resistor R20; pin 8 of IR2184 driver chip U5 is connected to the cathode of capacitor C26 and diode D3 respectively; pin 7 of IR2184 driver chip U5 is connected to pin 1 of IRLR7843 component Q3 via resistor R13; pin 4 of IR2184 driver chip U5 is connected to pin 1 of IRLR7843 component Q5 via resistor R16; pin 6 of IR2184 driver chip U5 is connected to capacitor C26 and IRLR7843 component Q3 respectively. Pin 3 of the IRLR7843 component Q5 is connected to pin 2; pin 5 of the IR2184 driver chip U5 is connected to the anode of diode D3; pin 8 of the IR2184 driver chip U9 is connected to the cathode of capacitor C27 and diode D4 respectively; pin 7 of the IR2184 driver chip U9 is connected to pin 1 of the IRLR7843 component Q2 via a series resistor R17; pin 4 of the IR2184 driver chip U9 is connected to pin 1 of the IRLR7843 component Q4 via a series resistor R21; pin 6 of the IR2184 driver chip U9... The terminals are connected to capacitor C27, pin 3 of IRLR7843 component Q2, and pin 2 of IRLR7843 component Q4, respectively; pin 5 of IR2184 driver chip U9 is connected to the anode of diode D4; pin 4 of encoder interface J3 is connected to capacitor C23; pin 2 of encoder interface J3 is connected in parallel with capacitor C24 and resistor R8; pin 1 of encoder interface J3 is connected in parallel with capacitor C25 and resistor R9; pin 2 of terminal J4 is connected to pin 3 of IRLR7843 component Q3 and pin 3 of IRLR7843 component Q2, respectively.

[0008] Preferably, the servo drive circuit includes: capacitor C39, capacitor C40, capacitor C41, capacitor C42, capacitor C43, capacitor C44, capacitor C45, capacitor C46, ​​TPS5430DDAR voltage regulator U11, inductor L5, diode D5, resistor R26, resistor R27, resistor R28, AND gate U12, and terminal P1;

[0009] The VIN pin of the TPS5430DDAR voltage regulator U11 is connected in parallel with capacitors C44 and C45; pin 8 of the TPS5430DDAR voltage regulator U11 is connected to inductor L5 and diode D5 respectively; pin 4 of the TPS5430DDAR voltage regulator U11 is connected to capacitor C46, ​​resistor R26, and resistor R27 respectively; inductor L5 is connected in parallel with capacitors C40, C41, C42, and C43; inductor L5, resistor R26, and resistor R27 are connected in sequence; capacitor C39 is connected to pins 1 and 8 of the TPS5430DDAR voltage regulator U11 respectively; pin 1 of AND gate U12 is connected to resistor R28; pin 4 of AND gate U12 is connected to pin 1 of terminal P1.

[0010] Preferably, the serial communication circuit includes: a USB-A interface J7, resistors R44, R45, and R46, a CH340G chip U15, a 12MHz crystal oscillator Y2, capacitors C54 and C55, and an LED element D7.

[0011] Pin D+ of USB-A interface J7 is connected to pin UD+ of CH340G chip U15 via series resistor R44; pin D- of USB-A interface J7 is connected to pin UD- of CH340G chip U15 via series resistor R45; pins XO and XI of CH340G chip U15 are connected to 12MHz crystal oscillator Y2 respectively; pin XO of CH340G chip U15 is connected to capacitor C55; pin XI of CH340G chip U15 is connected to capacitor C54; pin VBUS of USB-A interface J7 is connected to LED component D7 via series resistor R46; pin TXD of CH340G chip U15 is connected to pin MCU_USB_USART1_RXD of microcontroller U10; pin RXD of CH340G chip U15 is connected to pin MCU_USB_USART1_TXD of microcontroller U10.

[0012] Preferably, the processor includes: resistors R11, R12, and R24; NOT gate U7; 8MHz crystal oscillator Y1; capacitor C31; and capacitor C32.

[0013] Pin 27 of microcontroller U10 is connected to resistor R11 and input pin of NOT gate U7 respectively; pins 5 and 6 of microcontroller U10 are connected to 8MHz crystal oscillator Y1 respectively; pin 5 of microcontroller U10 is connected to capacitor C31; pin 6 of microcontroller U10 is connected to capacitor C32; pin PB12 of microcontroller U10 is connected to resistor R24.

[0014] Preferably, the 3.3V power supply circuit includes: capacitor C16, capacitor C18, ME6211C33M5G-N voltage regulator U2, and resistor R7;

[0015] The VIN pin of the ME6211C33M5G-N voltage regulator U2 is connected to capacitor C16; capacitors C17 and C18 are connected in parallel to the ME6211C33M5G-N voltage regulator U2; the EN pin of the ME6211C33M5G-N voltage regulator U2 is connected to resistor R7.

[0016] Preferably, the 5V power supply circuit includes: capacitor C8, capacitor C9, capacitor C10, capacitor C11, capacitor C12, capacitor C13, capacitor C14, TPS5430DDAR voltage regulator U1, inductor L3, diode D2, resistor R4, and resistor R5.

[0017] The VIN pin of the TPS5430DDAR voltage regulator U1 is connected in parallel with capacitors C13 and C14; pin 8 of the TPS5430DDAR voltage regulator U1 is connected to inductor L3 and diode D2 respectively; pin 4 of the TPS5430DDAR voltage regulator U1 is connected to capacitor C15, resistor R4, and resistor R5 respectively; inductor L3 is connected in parallel with capacitors C9, C10, C11, and C12; inductor L3, resistor R4, and resistor R5 are connected in sequence; capacitor C8 is connected to pins 1 and 8 of the TPS5430DDAR voltage regulator U1 respectively.

[0018] The present invention discloses the following technical effects:

[0019] This utility model provides a universal controller for intelligent car models. It constructs four half-bridge drive circuits using two integrated half-bridge drive chips IR2184s, which solves the problem of the large size of current controllers and realizes the reduction of module size and simplification of circuit. By bringing out one encoder interface, it solves the problem of the lack of motor data feedback in conventional drive circuits and realizes the real-time acquisition of the actual speed of the motor. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the composition of a general controller for an intelligent car model provided in this embodiment of the utility model;

[0022] Figure 2 A schematic diagram of the general controller structure for intelligent car models provided in this embodiment of the utility model;

[0023] Figure 3A schematic diagram of the motor drive circuit provided in an embodiment of this utility model;

[0024] Figure 4 A schematic diagram of the servo drive circuit provided in an embodiment of this utility model;

[0025] Figure 5 A schematic diagram of a USB-to-serial communication circuit provided in an embodiment of this utility model;

[0026] Figure 6 A schematic diagram of the processor unit circuit provided for an embodiment of this utility model;

[0027] Figure 7 A schematic diagram of a 3.3V voltage regulator circuit provided for an embodiment of this utility model;

[0028] Figure 8 A schematic diagram of a 5V voltage regulator circuit provided in an embodiment of this utility model;

[0029] Figure 9 A schematic diagram of the power input circuit provided for an embodiment of this utility model;

[0030] Figure 10 A schematic diagram of the external power supply circuit provided for an embodiment of this utility model. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not 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 effort are within the protection scope of the present utility model.

[0032] The purpose of this invention is to provide a universal controller for intelligent car models, which solves the problems of current controllers, such as long construction time for control circuits, easy damage, large space occupation, single function, and high cost.

[0033] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] Figure 1 A schematic diagram of the general controller composition for an intelligent car model provided in this embodiment of the present invention is shown below. Figure 1As shown, this utility model provides a universal controller for intelligent car models, including: a 3.3V power supply circuit, a 5V power supply circuit, a battery charging and discharging circuit, a processor, and a circuit detection circuit, a motor drive circuit, a servo drive circuit, a button interaction circuit, an indicator light display circuit, a serial communication circuit, and a buzzer circuit connected to the processor; the processor includes: a microcontroller U10; the motor drive circuit includes: an inverter U3, an inverter U4, an AND gate U6, an AND gate U8, and an IR2184 driver. Chip U5, IR2184 driver chip U9, resistors R8, R9, R10, R13, R16, R17, R20, R21, capacitors C23, C24, C25, C26, C27, diodes D3 and D4, IRLR7843 component Q2, Q3, Q4, and Q5, encoder interface J3, and terminal J4;

[0035] The battery charging and discharging circuit is connected to the 5V power supply circuit, the motor drive circuit, and the servo drive circuit, respectively; the 5V power supply circuit is connected to the 3.3V power supply circuit; pin 4 of inverter U3 is connected to pin 16 of microcontroller U10; pin 4 of inverter U4 is connected to pin 17 of microcontroller U10; the output pin of AND gate U6 is connected to pin 1 of IR2184 driver chip U5; the output pin of AND gate U8 is connected to pin 1 of IR2184 driver chip U9; pin 2 of IR2184 driver chip U5 is connected to a resistor. R10 is connected; pin 2 of IR2184 driver chip U9 is connected to resistor R20; pin 8 of IR2184 driver chip U5 is connected to the cathode of capacitor C26 and diode D3 respectively; pin 7 of IR2184 driver chip U5 is connected to pin 1 of IRLR7843 component Q3 via resistor R13; pin 4 of IR2184 driver chip U5 is connected to pin 1 of IRLR7843 component Q5 via resistor R16; pin 6 of IR2184 driver chip U5 is connected to capacitor C26 and IRLR7843 component Q3 respectively. Pin 3 of the IRLR7843 component Q5 is connected to pin 2; pin 5 of the IR2184 driver chip U5 is connected to the anode of diode D3; pin 8 of the IR2184 driver chip U9 is connected to the cathode of capacitor C27 and diode D4 respectively; pin 7 of the IR2184 driver chip U9 is connected to pin 1 of the IRLR7843 component Q2 via a series resistor R17; pin 4 of the IR2184 driver chip U9 is connected to pin 1 of the IRLR7843 component Q4 via a series resistor R21; pin 6 of the IR2184 driver chip U9... The terminals are connected to capacitor C27, pin 3 of IRLR7843 component Q2, and pin 2 of IRLR7843 component Q4, respectively; pin 5 of IR2184 driver chip U9 is connected to the anode of diode D4; pin 4 of encoder interface J3 is connected to capacitor C23; pin 2 of encoder interface J3 is connected in parallel with capacitor C24 and resistor R8; pin 1 of encoder interface J3 is connected in parallel with capacitor C25 and resistor R9; pin 2 of terminal J4 is connected to pin 3 of IRLR7843 component Q3 and pin 3 of IRLR7843 component Q2, respectively.

[0036] Furthermore, the servo drive circuit includes: capacitor C39, capacitor C40, capacitor C41, capacitor C42, capacitor C43, capacitor C44, capacitor C45, capacitor C46, ​​TPS5430DDAR voltage regulator U11, inductor L5, diode D5, resistor R26, resistor R27, resistor R28, AND gate U12, and terminal P1;

[0037] The VIN pin of the TPS5430DDAR voltage regulator U11 is connected in parallel with capacitors C44 and C45; pin 8 of the TPS5430DDAR voltage regulator U11 is connected to inductor L5 and diode D5 respectively; pin 4 of the TPS5430DDAR voltage regulator U11 is connected to capacitor C46, ​​resistor R26, and resistor R27 respectively; inductor L5 is connected in parallel with capacitors C40, C41, C42, and C43; inductor L5, resistor R26, and resistor R27 are connected in sequence; capacitor C39 is connected to pins 1 and 8 of the TPS5430DDAR voltage regulator U11 respectively; pin 1 of AND gate U12 is connected to resistor R28; pin 4 of AND gate U12 is connected to pin 1 of terminal P1.

[0038] Specifically, the serial communication circuit includes: USB-A interface J7, resistor R44, resistor R45, resistor R46, CH340G chip U15, 12MHz crystal oscillator Y2, capacitor C54, capacitor C55, and LED element D7.

[0039] Pin D+ of USB-A interface J7 is connected to pin UD+ of CH340G chip U15 via series resistor R44; pin D- of USB-A interface J7 is connected to pin UD- of CH340G chip U15 via series resistor R45; pins XO and XI of CH340G chip U15 are connected to 12MHz crystal oscillator Y2 respectively; pin XO of CH340G chip U15 is connected to capacitor C55; pin XI of CH340G chip U15 is connected to capacitor C54; pin VBUS of USB-A interface J7 is connected to LED component D7 via series resistor R46; pin TXD of CH340G chip U15 is connected to pin MCU_USB_USART1_RXD of microcontroller U10; pin RXD of CH340G chip U15 is connected to pin MCU_USB_USART1_TXD of microcontroller U10.

[0040] Furthermore, the processor includes: resistors R11, R12, and R24; NOT gate U7; 8MHz crystal oscillator Y1; capacitor C31; and capacitor C32.

[0041] Pin 27 of microcontroller U10 is connected to resistor R11 and input pin of NOT gate U7 respectively; pins 5 and 6 of microcontroller U10 are connected to 8MHz crystal oscillator Y1 respectively; pin 5 of microcontroller U10 is connected to capacitor C31; pin 6 of microcontroller U10 is connected to capacitor C32; pin PB12 of microcontroller U10 is connected to resistor R24.

[0042] Specifically, the 3.3V power supply circuit includes: capacitor C16, capacitor C18, ME6211C33M5G-N voltage regulator U2, and resistor R7;

[0043] The VIN pin of the ME6211C33M5G-N voltage regulator U2 is connected to capacitor C16; capacitors C17 and C18 are connected in parallel to the ME6211C33M5G-N voltage regulator U2; the EN pin of the ME6211C33M5G-N voltage regulator U2 is connected to resistor R7.

[0044] Furthermore, the 5V power supply circuit includes: capacitor C8, capacitor C9, capacitor C10, capacitor C11, capacitor C12, capacitor C13, capacitor C14, TPS5430DDAR voltage regulator U1, inductor L3, diode D2, resistor R4, and resistor R5.

[0045] The VIN pin of the TPS5430DDAR voltage regulator U1 is connected in parallel with capacitors C13 and C14; pin 8 of the TPS5430DDAR voltage regulator U1 is connected to inductor L3 and diode D2 respectively; pin 4 of the TPS5430DDAR voltage regulator U1 is connected to capacitor C15, resistor R4, and resistor R5 respectively; inductor L3 is connected in parallel with capacitors C9, C10, C11, and C12; inductor L3, resistor R4, and resistor R5 are connected in sequence; capacitor C8 is connected to pins 1 and 8 of the TPS5430DDAR voltage regulator U1 respectively.

[0046] refer to Figure 2 The basic components of this controller are surface-mount packaged, offering high integration. Its external electrical interfaces utilize standard T-type terminals and XT30 terminals, ensuring a stable, convenient, and reliable connection. To facilitate expansion and connection to other boards and achieve quick wiring, a 3.81 green terminal provides 12V power to expansion boards or other modules. Interface description: Terminal J1 is a T-type terminal for connecting a T-type interface battery to power the circuit, ensuring a secure T-type connection. Most commercially available control boards lack T-type connectors; this addition facilitates connection to commonly used power batteries, eliminating the need for adapters. Terminal J2 is a 3.81 green terminal, providing 12V power to expansion boards or other modules. Switch S1 is a power switch, selected with a high current rating of 30A to meet high current requirements. Most commercially available control boards use switches around 5A, which are prone to damage and unsuitable for high-current applications. Button S2 is a direct-plug button used to trigger circuit board functions. Terminal J3 is an encoder interface, supplying power to the motor encoder and simultaneously acquiring encoder pulse signals. Terminal J4 is the motor power supply interface. An XT30 terminal is used for a secure connection, preventing loosening even under strong vibrations. Terminal J7 is a Type-A USB interface for communication with USB devices. It can communicate with standard USB interfaces and can also be used for USB expansion communication with other boards. General-purpose control boards typically lack USB interfaces, using header pins instead, which is less convenient for users. Terminal P1 is the servo motor interface for connecting servos.

[0047] Further, circuit connection instructions. The hardware circuit of the drive module uses a GD32 microcontroller as the main controller, which controls the various drive circuits through a program to achieve the control and communication functions of the servo motor and motor. The schematic diagram of the motor drive section is shown below. Figure 3 As shown, four N-channel MOSFET chips are used, driven by two integrated half-bridge driver chips IR2184s, forming four half-bridge driver circuits, thus effectively reducing the module size and controlling one DC motor. In addition, an encoder interface is also provided to obtain the actual speed of the motor.

[0048] refer to Figure 3 Pin 4 of inverter U3 is connected to pin 16 of microcontroller U10; pin 5 is connected to the 3.3V power supply (VCC_3V3); pin 3 is connected to ground (GND). Pin 4 of inverter U4 is connected to pin 17 of microcontroller U10; pin 5 is connected to the 3.3V power supply (VCC_3V3); pin 3 is connected to ground (GND). The output pins of U6 and U8 are connected to pin 1 of driver chip U5 and pin 1 of driver chip U9, respectively. Pin 5 of U5 and U9 is connected to the positive terminal of the battery, and pin 3 is connected to the negative terminal of the battery. Pin 2 of U5 is connected to pull-up resistor R10, and pin 2 of U9 is connected to pull-up resistor R20. Pin 8 of U5 is connected to capacitor C26 and the cathode of diode D3; pin 7 is connected to pin 1 of Q3 via resistor R13; pin 4 is connected to pin 1 of Q5 via resistor R16; pin 6 is connected to the other end of capacitor C26, and also to pin 3 of Q3 and pin 2 of Q5; pin 5 is connected to the anode of diode D3. Pin 8 of U9 is connected to capacitor C27 and the cathode of diode D4; pin 7 is connected to pin 1 of Q2 via resistor R17; pin 4 is connected to pin 1 of Q4 via resistor R21; pin 6 is connected to the other end of capacitor C27, and also to pin 3 of Q2 and pin 2 of Q4; pin 5 is connected to the anode of diode D4. Pin 4 of encoder interface J3 is connected to 5V power supply (VCC_5V), and a 1μF capacitor C23 is connected in parallel. Pin 3 of J3 is connected to power ground (GND). Pin 2 of J3 is connected to pin 2 of inverter U3, and a capacitor C24 and a pull-down resistor R8 are connected in parallel. Pin 1 of J3 is connected to pin 2 of inverter U4, and a capacitor C25 and a pull-down resistor R9 are connected in parallel. Pin 2 of terminal J4 is connected to pin 3 of Q3 and pin 3 of Q2 respectively. Pin 2 of Q3 and Q2 are connected to the positive terminal of the battery (ME_12V). Pin 3 of Q5 and pin 3 of Q4 are connected to the negative terminal of the battery (MGND).

[0049] refer to Figure 4The servo control system consists of a servo power supply and a signal transmission circuit. The power supply uses a step-down power chip, TPS5430DDAR, which supports 3A current supply to meet the servo rotation requirements. The controller provides a servo interface P1 for easy servo connection. The VCC_12V input is filtered by capacitors C44 and C45 and then connected to pin VIN of the TPS5430DDAR regulator U11. Pin 8 of U11 is connected to inductor L5 and diode D5 for energy storage and freewheeling during DC-DC conversion. The inductor output is connected to capacitors C40, C41, C42, and C43 for voltage regulation and filtering. The output voltage SERVO_6V5 is connected to the feedback resistor network R26 and R27, connecting the feedback voltage signal to pin 4 of U11. Pin 1 of U11 is connected to one end of capacitor C39, and the other end of C39 is connected to pin 8 of U11. The signal MCU_SERVO_PWM_A is connected to pin 1 of U12 via a series resistor R28. Pin 4 of U12 is connected to pin 1 of terminal P1.

[0050] refer to Figure 5 This is a USB-to-serial communication interface. Pins D+ and D- of the USB-A interface J7 are connected in series with resistors R44 and R45, respectively, to pins UD+ and UD- of the CH340G chip U15. Pin VCC of U15 is connected to a 3.3V power supply (VCC_3V3), and pin GND is grounded. Pins XO and XI of U15 are connected to a 12MHz crystal oscillator Y2, forming a clock circuit with capacitors C54 and C55. Pin VBUS of the USB-A interface J7 is connected in series with resistor R46 and LED D7 to form a power indicator circuit. Pins TXD and RXD of the CH340G chip U15 are connected to pins MCU_USB_USART1_RXD and MCU_USB_USART1_TXD of the microcontroller U10. Other pins of U15 are not connected.

[0051] refer to Figure 6 The processor unit is a GD32F103C8T6, an ARM-Cortex-M3 core microcontroller with a clock speed of 108MHz. As the processor, it is responsible for functions such as power monitoring, motor control, servo control, attitude control, serial communication, and interactive control via buttons and indicator lights. The processor has internal storage space to store data such as servo angles, motor speeds, and motor control parameters. Figure 6As shown, the processor is configured with one external crystal oscillator (8MHz) for a precise system clock. The processor uses JTAG-SWD for program download. The power supply design incorporates multiple low-pass filter circuits to ensure stable analog-to-digital sampling and reliable system power supply. Specifically, pin 27 of microcontroller U10 is connected to pull-up resistor R11, input pin 1 of AND gate U6, and input pin 7 of NOT gate U7. Pin 29 of microcontroller U10 is connected to pull-up resistor R12, input pin 2 of AND gate U6, and input pin 1 of AND gate U8. Pins 5 and 6 of microcontroller U10 are connected to the 8MHz crystal oscillator Y1, forming a clock circuit with capacitors C31 and C32. Pin PB12 of microcontroller U10 is connected to GND through resistor R24. The MCU_KEY_INA button signal is connected to pin PA2 of microcontroller U10. The MCU_BUZINA buzzer signal is connected to pin PA3 of microcontroller U10.

[0052] refer to Figure 7 In the 3.3V voltage regulator circuit, the VCC_5V input is filtered by capacitor C16 and then connected to pin VIN of the ME6211C33M5G-N regulator U2. Pin VOUT of U2 outputs a 3.3V voltage (VCC_3V3), which is filtered by capacitors C17 and C18. Pin EN of U2 is connected to pull-up resistor R7 to enable the control chip. Pin VSS of U2 is connected to GND.

[0053] refer to Figure 8 In the 5V voltage regulator circuit, the VCC_12V input is filtered by capacitors C13 and C14 and then connected to pin VIN of the TPS5430DDAR voltage regulator U1. Pin 8 of U1 is connected to inductor L3 and diode D2 for energy storage and freewheeling during DC-DC conversion. The inductor output is connected to capacitors C8, C9, C10, C11, and C12 for voltage regulation and filtering. The output voltage VCC_5V is connected to the feedback resistor network R4 and R5, and the feedback voltage signal is connected to pin 4 of U1. Pin 1 of U1 is connected to one end of capacitor C8, and the other end of C8 is connected to pin 8 of U1.

[0054] refer to Figure 9 In the power input circuit, pin 2 of power input terminal J1 is connected to ground (MGND), and pin 1 is connected to one end of switch S1. One end of R1 is connected to ME_12V, and the other end is connected to one end of C7. The other end of C7 is connected to MGND. One end of R2 is connected to ME_12V, and the other end is connected to pin 1 of Q1. Pin 2 of Q1 is connected to MGND. Pin 3 of Q1 is connected to one end of L1. A capacitor C1 is connected in parallel at the input terminal of common mode inductor L1, and a capacitor C3 is connected in parallel at the output terminal, resulting in an output voltage of VCC_12V.

[0055] refer to Figure 10In the external power supply circuit, the ME_12V power line is connected in series with fuse F1, and the other end of F1 is connected in parallel with capacitor C4, which is also connected to the input terminal of common mode inductor L2. The other end of capacitor C4 is connected to MGND and the input terminal of the common mode inductor. The output terminal of L2 is connected in parallel with capacitors C5 and C6, and connected to the green terminal J2 to supply 12V power to external devices. Pin 1 of inductor L2 is connected to pin 1 of C4, and pin 2 is connected to pin 1 of ACM7060.

[0056] The beneficial effects of this utility model are as follows:

[0057] This invention constructs four half-bridge drive circuits using two integrated half-bridge drive chips IR2184s, effectively reducing the module size, simplifying the circuit, and making the integrated size of the control unit smaller; by bringing out one encoder interface, the actual speed of the motor can be obtained in real time.

[0058] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0059] This document uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. Furthermore, those skilled in the art will recognize that, based on the ideas of this utility model, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A universal controller for intelligent car models, characterized in that, include: 3.3V power supply circuit, 5V power supply circuit, battery charging and discharging circuit, processor and circuit detection circuit connected to the processor, motor drive circuit, servo drive circuit, key interaction circuit, indicator light display circuit, serial communication circuit, and buzzer circuit. The processor includes: a microcontroller U10; the motor drive circuit includes: an inverter U3, an inverter U4, an AND gate U6, an AND gate U8, an IR2184 driver chip U5, an IR2184 driver chip U9, resistors R8, R9, R10, R13, R16, R17, R20, R21, capacitors C23, C24, C25, C26, C27, diodes D3 and D4, IRLR7843 component Q2, Q3, Q4, and Q5, an encoder interface J3, and a terminal J4; The battery charging and discharging circuit is connected to the 5V power supply circuit, the motor drive circuit, and the servo drive circuit, respectively; the 5V power supply circuit is connected to the 3.3V power supply circuit; pin 4 of inverter U3 is connected to pin 16 of microcontroller U10; pin 4 of inverter U4 is connected to pin 17 of microcontroller U10; the output pin of AND gate U6 is connected to pin 1 of IR2184 driver chip U5; the output pin of AND gate U8 is connected to pin 1 of IR2184 driver chip U9; pin 2 of IR2184 driver chip U5 is connected to a resistor. R10 is connected; pin 2 of IR2184 driver chip U9 is connected to resistor R20; pin 8 of IR2184 driver chip U5 is connected to the cathode of capacitor C26 and diode D3 respectively; pin 7 of IR2184 driver chip U5 is connected to pin 1 of IRLR7843 component Q3 via resistor R13; pin 4 of IR2184 driver chip U5 is connected to pin 1 of IRLR7843 component Q5 via resistor R16; pin 6 of IR2184 driver chip U5 is connected to capacitor C26 and IRLR7843 component Q3 respectively. Pin 3 of the IRLR7843 component Q5 is connected to pin 2; pin 5 of the IR2184 driver chip U5 is connected to the anode of diode D3; pin 8 of the IR2184 driver chip U9 is connected to the cathode of capacitor C27 and diode D4 respectively; pin 7 of the IR2184 driver chip U9 is connected to pin 1 of the IRLR7843 component Q2 via a series resistor R17; pin 4 of the IR2184 driver chip U9 is connected to pin 1 of the IRLR7843 component Q4 via a series resistor R21; pin 6 of the IR2184 driver chip U9... The terminals are connected to capacitor C27, pin 3 of IRLR7843 component Q2, and pin 2 of IRLR7843 component Q4, respectively; pin 5 of IR2184 driver chip U9 is connected to the anode of diode D4; pin 4 of encoder interface J3 is connected to capacitor C23; pin 2 of encoder interface J3 is connected in parallel with capacitor C24 and resistor R8; pin 1 of encoder interface J3 is connected in parallel with capacitor C25 and resistor R9; pin 2 of terminal J4 is connected to pin 3 of IRLR7843 component Q3 and pin 3 of IRLR7843 component Q2, respectively.

2. The universal controller for intelligent car models according to claim 1, characterized in that, The servo drive circuit includes: capacitor C39, capacitor C40, capacitor C41, capacitor C42, capacitor C43, capacitor C44, capacitor C45, capacitor C46, ​​TPS5430DDAR voltage regulator U11, inductor L5, diode D5, resistor R26, resistor R27, resistor R28, AND gate U12, and terminal P1. The VIN pin of the TPS5430DDAR voltage regulator U11 is connected in parallel with capacitors C44 and C45; pin 8 of the TPS5430DDAR voltage regulator U11 is connected to inductor L5 and diode D5 respectively; pin 4 of the TPS5430DDAR voltage regulator U11 is connected to capacitor C46, ​​resistor R26, and resistor R27 respectively; inductor L5 is connected in parallel with capacitors C40, C41, C42, and C43; inductor L5, resistor R26, and resistor R27 are connected in sequence; capacitor C39 is connected to pins 1 and 8 of the TPS5430DDAR voltage regulator U11 respectively; pin 1 of AND gate U12 is connected to resistor R28; pin 4 of AND gate U12 is connected to pin 1 of terminal P1.

3. The universal controller for intelligent car models according to claim 1, characterized in that, The serial communication circuit includes: USB-A interface J7, resistors R44, R45, and R46, CH340G chip U15, 12MHz crystal oscillator Y2, capacitors C54 and C55, and LED component D7. Pin D+ of USB-A interface J7 is connected to pin UD+ of CH340G chip U15 via series resistor R44; pin D- of USB-A interface J7 is connected to pin UD- of CH340G chip U15 via series resistor R45; pins XO and XI of CH340G chip U15 are connected to 12MHz crystal oscillator Y2 respectively; pin XO of CH340G chip U15 is connected to capacitor C55; pin XI of CH340G chip U15 is connected to capacitor C54; pin VBUS of USB-A interface J7 is connected to LED component D7 via series resistor R46; pin TXD of CH340G chip U15 is connected to pin MCU_USB_USART1_RXD of microcontroller U10; pin RXD of CH340G chip U15 is connected to pin MCU_USB_USART1_TXD of microcontroller U10.

4. The universal controller for intelligent car models according to claim 1, characterized in that, The processor includes: resistors R11, R12, and R24; NOT gate U7; 8MHz crystal oscillator Y1; capacitor C31; and capacitor C32. Pin 27 of microcontroller U10 is connected to resistor R11 and input pin of NOT gate U7 respectively; pins 5 and 6 of microcontroller U10 are connected to 8MHz crystal oscillator Y1 respectively; pin 5 of microcontroller U10 is connected to capacitor C31; pin 6 of microcontroller U10 is connected to capacitor C32; pin PB12 of microcontroller U10 is connected to resistor R24.

5. A universal controller for intelligent car models according to claim 1, characterized in that, The 3.3V power supply circuit includes: capacitor C16, capacitor C18, ME6211C33M5G-N voltage regulator U2, and resistor R7; The VIN pin of the ME6211C33M5G-N voltage regulator U2 is connected to capacitor C16; capacitors C17 and C18 are connected in parallel to the ME6211C33M5G-N voltage regulator U2; the EN pin of the ME6211C33M5G-N voltage regulator U2 is connected to resistor R7.

6. A universal controller for intelligent car models according to claim 1, characterized in that, The 5V power supply circuit includes: capacitor C8, capacitor C9, capacitor C10, capacitor C11, capacitor C12, capacitor C13, capacitor C14, TPS5430DDAR voltage regulator U1, inductor L3, diode D2, resistor R4, and resistor R5. The VIN pin of the TPS5430DDAR voltage regulator U1 is connected in parallel with capacitors C13 and C14; pin 8 of the TPS5430DDAR voltage regulator U1 is connected to inductor L3 and diode D2 respectively; pin 4 of the TPS5430DDAR voltage regulator U1 is connected to capacitor C15, resistor R4, and resistor R5 respectively; inductor L3 is connected in parallel with capacitors C9, C10, C11, and C12; inductor L3, resistor R4, and resistor R5 are connected in sequence; capacitor C8 is connected to pins 1 and 8 of the TPS5430DDAR voltage regulator U1 respectively.

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