(C-Wireless Charging Electric Car) Liaoning Province First Prize_C

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(C-Wireless Charging Electric Car) Liaoning Province First Prize_C [Copy link]

The wireless charging electric car charges the farad capacitor through a wireless charging device. After it is fully charged, it is powered by DC-DC to achieve the functions of straight-line driving and inclined driving. This system is controlled by MSP430F5529 , mainly including MSP430F5529 main control board module, wireless power sending and receiving device, 5F farad capacitor obtained in parallel, TPS63060 as driving module, oled Display screen module, button module, and modified four-wheel drive car modules. The charging start and end signals are realized by the single-chip microcomputer control relay. When charging is completed, the buzzer sounds and the car starts automatically. The functions of each part are switched by buttons, and the OLED screen and button module are used for human-computer interaction. Keywords: MSP430F5529, wireless charging, farad capacitor, buck circuit 1. System Structure The hardware of this system mainly includes MSP430F5529 main control module, wireless power transmission and receiving device, farad capacitor, DC-DC voltage conversion module, power supply module, wireless charging four-wheel drive, oled display module, matrix key module. Mechanical part of the system: Transmitter: input timing signal through key, single chip count, and control the charging module to start at the same time, key input information and timing information are displayed through oled . When the timing is over, the control relay is disconnected, and the charging module stops charging. Receiver: A wireless charging car is constructed by using a modified four-wheel drive car, a wireless power receiving module, a DC-DC module, and a farad capacitor. When the transmitter starts to supply power, the farad capacitor is charged through the DC-DC module. When the timing is over, the farad capacitor stops charging, and the car starts charging. The software part of the system: Enter the key value through the key to control the clock division of the single-chip microcomputer to form an arbitrary module value timer. When the counting starts, the single-chip microcomputer controls the relay to close through the driving circuit, and the charging module charges; after the counting time is reached, the control module is disconnected and the charging stops. The car receives the stop signal and starts. 1 Wireless charging car structure demonstration plan 1: Use KT board as the bottom plate, paste the receiving coil at the bottom of the bottom plate, fix the farad capacitor and DC-DC module on the top of the bottom plate, install four wheels, and use brushless motor to provide power. The disadvantages of this plan are: the weight of KT board plus the weight of other modules is too heavy. Under the condition of limited power, the power loss is large, and it is difficult to complete the requirements of the topic well. Plan 2: Use the ready-made toy four-wheel drive chassis and install the motor to provide power. Paste the receiving coil at the bottom of the bottom plate, fix the farad capacitor and DC-DC module. Advantages of this solution: The vehicle body itself is light in weight, the power required for the motor to run is small, and it is easy to achieve the planar linear motion index. Disadvantages: After adding the Farad capacitor and DC-DC module to the vehicle, the center of gravity of the vehicle rises and the climbing ability decreases. Combining the above three solutions, choose Solution 2. 2 Main control MCU Argumentation and selection Solution 1: Choose 89C51 Single-chip microcomputer control. Single-chip microcomputers are simple and easy to operate, but the system machine cycle is long, the peripherals are simple, and the pins are few, which is not conducive to controlling complex systems, and the system power consumption is large. Option 2: Select MSP430G2553 single-chip microcomputer control. This single-chip microcomputer is produced by TI, with good performance, rich peripherals, simple code writing, and can turn on low power consumption mode. The single-chip microcomputer consumes less power. There are molded boards available, but there are few available peripheral pins. Option 3: Select MSP430F5529 single-chip microcomputer control. There is a ready-made MSP430F5529 minimum system version,It has rich functions, many pins, stable performance, a mature open source library, and relatively simple code. Combining the above three options, choose option three. 3 The demonstration and selection of motor module Option 1: Use ordinary DC motor, advantages: low price and easy to buy. Disadvantages: large motor power loss. Option 2: Use international general 130 type motor (motor), advantages: small size, light weight, small motor power loss. Combining the above two options, choose Option 2. 4 The demonstration and selection of display module Scheme 1: Use LCD12864 display, advantages: large display content. Disadvantages: high power consumption after turning on the backlight, unclear display after turning off the backlight. Scheme 2: Use 0.96OLED display, advantages: clear display and low power consumption. Disadvantages: small display font and less display content. Suitable for low-power systems with less display content. Combining the above two schemes, choose Scheme 2. 5 Demonstration and selection of charging control module Scheme 1: Use single-chip microcomputer control. When charging starts, the on-board single-chip microcomputer sends a control signal to start charging, and the timing starts. After charging is completed, a control signal is sent to start the car. Advantages: The control is easier to implement and the hardware circuit is simple. Disadvantages: The single-chip microcomputer board is large in size, and it is difficult to fix it on the car after adding the peripheral circuit, and the weight of the car body is increased. Scheme 2: Use a single-chip microcomputer to control the electromagnetic relay. The single-chip microcomputer is fixed at the transmitting end to control the opening and closing of the transmitting coil. The input after the coil rectification is connected to the enable end of the output chip to control the self-starting of the car. Combining the above two schemes, choose scheme 2. II. System Circuit Design

Using multiple 63020 modules to realize the function of charging the farad capacitor

2 Program Design The program flow chart is as follows:This topic mainly controls the second counter count through key input, the charger charges, and when the count value is reached, the charging ends and the car starts.

III. Physical display

Fourth, debugging data After field distance measurement and timing, the maximum slope angle that the car can rise within one minute of charging time is 60 degrees, and the straight-line distance can reach more than 200m96OLED display, advantages: clear display, low power consumption. Disadvantages: small display font, less display content. Suitable for low-power systems with less display content. Combining the above two options, choose option 2. 5 Demonstration and selection of charging control module Option 1: Use single-chip microcomputer control. When charging starts, the on-board single-chip microcomputer sends a control signal to start charging, and the timing starts. After charging is completed, a control signal is sent to start the car. Advantages: The control is easy to implement and the hardware circuit is simple. Disadvantages: The single-chip microcomputer board is large in size, and it is difficult to fix it on the car after adding the peripheral circuit, and the weight of the car body is increased. Scheme 2: Use a single-chip microcomputer to control the electromagnetic relay. The single-chip microcomputer is fixed at the transmitting end to control the opening and closing of the transmitting coil. The input after the coil rectification is connected to the enable end of the output chip to control the self-starting of the car. Combining the above two schemes, choose scheme 2. II. System Circuit Design

Using multiple 63020 modules to realize the function of charging the farad capacitor

2 Program Design The program flow chart is as follows:This topic mainly controls the second counter count through key input, the charger charges, and when the count value is reached, the charging ends and the car starts.

III. Physical Display

Fourth, debugging data After field distance measurement and timing, the maximum slope angle that the car can rise within one minute of charging time is 60 degrees, and the straight-line distance can reach more than 200m96OLED display, advantages: clear display, low power consumption. Disadvantages: small display font, less display content. Suitable for low-power systems with less display content. Combining the above two options, choose option 2. 5 Demonstration and selection of charging control module Option 1: Use single-chip microcomputer control. When charging starts, the on-board single-chip microcomputer sends a control signal to start charging, and the timing starts. After charging is completed, a control signal is sent to start the car. Advantages: The control is easy to implement and the hardware circuit is simple. Disadvantages: The single-chip microcomputer board is large in size, and it is difficult to fix it on the car after adding the peripheral circuit, and the weight of the car body is increased. Scheme 2: Use a single-chip microcomputer to control the electromagnetic relay. The single-chip microcomputer is fixed at the transmitting end to control the opening and closing of the transmitting coil. The input after the coil rectification is connected to the enable end of the output chip to control the self-starting of the car. Combining the above two schemes, choose scheme 2. II. System Circuit Design

Using multiple 63020 modules to realize the function of charging the farad capacitor

2 Program Design The program flow chart is as follows:This topic mainly controls the second counter count through key input, the charger charges, and when the count value is reached, the charging ends and the car starts.

III. Physical display

Fourth, debugging data After field distance measurement and timing, the maximum slope angle that the car can rise within one minute of charging time is 60 degrees, and the straight-line distance can reach more than 200m"]3. Physical display

4. Debugging data After field distance measurement and timing, the maximum slope angle that the car can climb within one minute of charging time is 60 degrees, and the straight-line distance can reach more than 200 meters."]3. Physical display

4. Debugging data After field distance measurement and timing, the maximum slope angle that the car can climb within one minute of charging time is 60 degrees, and the straight-line distance can reach more than 200 meters.