CN102001392A - Vehicle-mounted information system for hybrid power handicapped motorcycle - Google Patents

Abstract

A vehicle-mounted information system for a hybrid motorcycle for the disabled, including: MCU control unit, vehicle speed detection sensor, motor speed detection sensor, temperature detection sensor, battery voltage and current detection sensor; MCU control unit and GPS receiver, map database, external storage Device, sound and light alarm module, CAN communication module, 485 communication module, RS232 serial port, CAN communication module are respectively electrically connected; RS232 serial port is connected to the touch screen; Touch screen; the GPS receiver includes the ability to transmit the vehicle's position information to the MCU control unit, the MCU control unit integrates the map database, and the vehicle speed detection sensor displays the position of the vehicle through the RS232 serial port and the touch screen; through the on-board information system real-time working condition display module, The driver can grasp the condition of the vehicle in time, and the vehicle can be maintained conveniently and accurately through the real-time fault diagnosis and alarm module of the vehicle information system.

Description

Onboard Information System of Hybrid Motorcycle for Disabled Persons

technical field

The invention relates to a vehicle-mounted information system of a hybrid motorcycle for disabled persons. Specifically, it includes: data collection and analysis, real-time vehicle condition display, fault diagnosis and sound and light alarm, GPS (Global Positioning System) positioning, USB reading and storage and other functions.

Background technique

Vehicle information system is a new type of automotive electronic equipment. At present, some well-known foreign automobile manufacturers have done research in this area for many years and formed products. The vehicle information system mainly includes car navigation, vehicle fault diagnosis and alarm, instrument display and other functions. Car navigation is to determine the position of the vehicle through the GPS global positioning system. No matter where the user is in the world, it can locate in time and continuously. According to the map database, as long as the starting point and the end point are input, the navigation will automatically broadcast the route by voice, even if driving Even if you are in a strange city, you can reach your destination conveniently. Fault diagnosis and alarm is that the main controller analyzes the collected data, judges which module is faulty according to the analysis results, and sends out an alarm. Fault diagnosis is convenient for maintenance personnel to quickly and correctly repair. The instrument display is to measure the data of various parts through the sensors in the car and transmit it to the main controller. The main controller controls the display to display the detected vehicle condition data, replacing all the functions of the traditional instrument.

But there are few researches on the vehicle information system of the hybrid motorcycle for the disabled both at home and abroad. Traditional motorcycles are driven by a single fuel engine or electric motor. Due to the shortcomings of fuel engine exhaust pollution and short driving range of electric motors, hybrid motorcycles will replace traditional fuel motorcycles or electric motorcycles. Hybrid motorcycles use Liquefied Petroleum Gas (LPG) engines and front-wheel drive motors. Compared with gasoline, LGP fuel has the advantages of low exhaust emissions and lower toxicity of harmful emissions than gasoline. Hybrid motorcycles need to detect real-time vehicle condition data to select the most suitable driving mode. Therefore, the research on hybrid motorcycle vehicle information system is particularly important. This system can solve the collection and analysis of vehicle condition data to determine the driving mode of the vehicle. At the same time, it can also provide navigation information and other functions.

Contents of the invention

The object of the present invention is to overcome the deficiency of the above-mentioned background technology by providing a vehicle-mounted information system for a hybrid motorcycle for the disabled, so that it has the characteristics of reliable performance and intelligent control.

The present invention is realized by adopting the following technical means:

A vehicle-mounted information system for a hybrid motorcycle for the disabled, including: MCU control unit, vehicle speed detection sensor, motor speed detection sensor, temperature detection sensor, battery voltage and current detection sensor; MCU control unit and GPS receiver, map database, external storage The device, sound and light alarm module, CAN communication module, 485 communication module, RS232 serial port, and CAN communication module are electrically connected respectively; the RS232 serial port is connected to the touch screen for display and input control signal reception;

USB reading and storage module and touch screen with in-vehicle data display and input control signal reception; MCU control unit, vehicle speed detection sensor, motor speed detection sensor, temperature detection sensor, battery voltage and current detection sensor, GPS receiver, map database, External storage device, sound and light alarm module, CAN communication module, 485 communication module, RS232 serial port, USB reading and storage module and touch screen with in-vehicle data display and input control signal reception;

The touch screen (14) with in-vehicle data display and input control signal reception includes being connected with the MCU control unit through the RS232 serial port (12);

The GPS receiver includes the ability to transmit the vehicle's location information to the MCU control unit, and the MCU control unit integrates the map database and the vehicle speed detection sensor to display the vehicle's location through the RS232 serial port on the touch screen;

The CAN communication module includes a CAN controller integrated inside the MCU control unit, a photocoupler connected to the CAN controller for photoelectric isolation, a CAN transceiver connected to the photocoupler, and an in-vehicle CAN bus connected to the CAN transceiver;

The 485 communication module includes a photocoupler connected with the MCU control unit for photoelectric isolation, a 485 transceiver connected with the photocoupler, and an in-vehicle 485 bus connected with the 485 transceiver.

The USB reading and storage module includes external storage devices that support USB interfaces such as U disks and memory cards, which can read data from external storage devices and store internally collected data in external storage devices.

The real-time working condition display of the electric motor, engine and battery pack in the car includes display through the touch screen. Real-time working conditions include displaying start-up, low load, medium load, heavy load, and braking.

Compared with the prior art, the present invention has the following obvious advantages and beneficial effects:

A vehicle-mounted information system for a hybrid motorcycle for the disabled, which adds a touch-screen driver program for the vehicle-mounted information system, reads data from the GPS receiver through the MCU control unit, and displays the location information of the vehicle on the touch screen in combination with a map database; through the vehicle-mounted information The real-time working condition display module of the system enables the driver to grasp the vehicle condition in time and drive the vehicle better; through the real-time fault diagnosis and alarm module of the vehicle information system, the vehicle can be repaired more conveniently and accurately; through the vehicle condition data collection and analysis module, and Complete the algorithm and program design of data analysis; complete the software design of the vehicle information system and the CAN bus communication module in the vehicle; complete the software design of the 485 bus communication module of the vehicle information system; read and store through the USB of the vehicle information system module and complete its software design, so that the MCU control unit can directly communicate with storage devices such as U disk and memory card through USB;

Description of drawings

Fig. 1 is an overall block diagram of the present invention;

Figure 2 is the main interface of the vehicle information system.

The part numbers are as follows:

1 is the MCU control unit, 2 is the vehicle speed detection sensor, 3 is the motor speed detection sensor, 4 is the temperature detection sensor, 5 is the battery voltage and current detection sensor, 6 is the GPS (Global Positioning System) receiver, 7 is the map database, 8 9 is the sound and light alarm module, 10 is the CAN communication module, 11 is the 485 communication module, 12 is the RS232 serial port, 13 is the USB reading and storage module, 14 is equipped with in-vehicle data display and input control signal reception 15 is the CAN controller, 16 is the photocoupler, 17 is the CAN transceiver, 18 is the CAN bus in the car, 19 is the 485 transceiver, and 20 is the 485 bus in the car;

Detailed ways

Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in Figure 1: MCU is the control core of the entire vehicle information system, and controls the touch screen to display relevant content through the RS232 serial port; the GPS receiver sends the received vehicle position signal to the MCU, and the MCU combines the map database to process the position signal and Display the vehicle position on the touch screen; the vehicle speed sensor, motor speed sensor, and voltage and current sensor transmit the measured data to the MCU, and the MCU processes and analyzes the collected vehicle condition data, and displays the vehicle condition information on the touch screen through RS232. As a result, the fault diagnosis is carried out. If a fault is found, the sound and light alarm module will be activated, and the fault module will be displayed on the touch screen, which is convenient for maintenance; the MCU is connected to the photocoupler for photoelectric isolation through the internal integrated CAN controller. The CAN data transceiver is connected, and data interaction is performed with the CAN bus in the car through the CAN transceiver; the MCU can read external data storage devices such as U disk and memory card through USB, and can store all the collected data in the external U disk. Realize the "black box" function

The specific working principle is as follows:

1. Touch screen: A special touch screen drive circuit is designed and a controller is added. As long as the corresponding commands are sent through the RS232 serial port, the touch screen can be operated accordingly, including displaying pictures, Chinese characters and animations. When the touch screen is initialized, the internal controller automatically sets the default font and background color, and the baud rate is set to 9600bp/s. If it needs to be changed, when the touch screen is initialized, the corresponding command can be sent to the touch screen through the RS232 serial port, which is easy to operate , does not require the user to have any hardware knowledge. The drive circuit includes 64MB of flash, which can store the pictures to be displayed in the flash in advance, and the pictures can be called as long as the corresponding picture number command is sent through the main MCU control unit.

2. GPS receiver: GPS (Global Positioning System) is a new generation of global satellite positioning system developed by the United States in the 1970s. It can realize global, all-weather, real-time navigation and positioning functions, and provide users with seven-dimensional information such as high-precision position, speed and time. GPS locator mainly includes: antenna, signal identification and processing, data control and power supply and other units. The GPS receiver transmits the calculated position signal to the MCU control unit. The MCU control unit calibrates the processed position signal on the touch screen.

3. Data acquisition and analysis: The hardware circuit includes a vehicle speed sensor, a motor speed sensor, a temperature sensor, and a voltage and current sensor. The vehicle speed sensor measures the speed of the wheel, the motor speed sensor measures the speed of the motor, and the temperature sensor measures the temperature of the battery pack, voltage and current The sensor measures the voltage and current of the battery pack. The MCU control unit processes and analyzes the collected data, and displays the vehicle condition information on the touch screen.

4. Real-time display of working conditions: The MCU control unit judges the working conditions of the vehicle according to the collected signals, and displays the working conditions and running status on the touch screen. As shown in Figure 1, when the vehicle starts, the engine does not work, and the battery pack supplies power to the motor, and the motor drives the vehicle to run in the starting state; when the vehicle is under low load, the generator does not work, and the battery pack supplies power to the motor, and the motor drives The vehicle runs in a low-load state; when the vehicle is in a medium load, the engine drives the vehicle, and the motor works in the power generation state to charge the battery pack; when the vehicle is heavily loaded, the battery pack supplies power to the motor, and the motor and the engine drive the vehicle at the same time; When the vehicle is braking, the engine does not work, and the electric motor generates power to charge the battery pack.

5. Fault diagnosis and sound and light alarm: The MCU control unit detects the vehicle condition information in the car at all times, and analyzes the measured data. When a fault is diagnosed, the MCU control unit will sound an alarm and light up the LED light, and at the same time The location and details of system faults are displayed on the touch screen, which is convenient for maintenance personnel to quickly and accurately repair.

6.US B reading and storage module: the hardware circuit is realized by the USB interface chip ch375. Read the external storage device that supports the USB interface, and display the content on the touch screen, you can easily browse the data in the external storage device; at the same time, you can store all the data measured by the vehicle information system on the external device, when the vehicle is due to After the catastrophic damage occurs due to force majeure, the public security and relevant departments can analyze the driving status and data of the vehicle before the destruction according to the contents of the external storage device, so as to facilitate the investigation work.

Claims (7)

1. A vehicle-mounted information system for a hybrid motorcycle for the disabled, comprising: an MCU control unit (1), a vehicle speed detection sensor (2), a motor speed detection sensor (3), a temperature detection sensor (4), and a battery voltage and current detection sensor (5); it is characterized in that: described MCU control unit (1) and GPS receiver (6), map database (7), external storage device (8), sound and light alarm module (9), CAN communication module ( 10), 485 communication module (11), RS232 serial port (12), CAN communication module (10) are electrically connected respectively; Described RS232 serial port (12) is connected with the touch screen (14) that shows and input control signal reception; The USB reading and storage module (13) and the touch screen (14) with in-vehicle data display and input control signal reception; are characterized in that: MCU control unit (1), vehicle speed detection sensor (2), motor speed detection sensor (3 ), temperature detection sensor (4), battery voltage and current detection sensor (5), GPS receiver (6), map database (7), external storage device (8), sound and light alarm module (9), CAN communication module ( 10), 485 communication module (11), RS232 serial port (12), USB reading and storage module (13) and a touch screen (14) with in-vehicle data display and input control signal reception; The described touch screen (14) possessing in-vehicle data display and input control signal reception includes being connected with MCU control unit (1) by RS232 serial port (12); Described GPS receiver (6) comprises that the position information of vehicle is sent to MCU control unit (1), and MCU control unit (1) comprehensive map database (7), vehicle speed detection circuit (2) pass the position of vehicle through RS232 Serial port (12), display by touch screen (14); Described CAN communication module comprises the integrated CAN controller (15) of MCU control unit (1), the optocoupler (16) that is connected with CAN controller (15) and carries out optoelectronic isolation, and optocoupler (16) ) connected to the CAN transceiver (17) and the CAN bus (18) in the car connected to the CAN transceiver (17); Described 485 communication module comprises the optocoupler (16) that is connected with MCU control unit (1) and carries out optoelectronic isolation, the 485 transceiver (19) that links to each other with optocoupler (16) and 485 transceiver (19) ) connected to the car 485 bus (20). 2. The vehicle-mounted information system of a motorcycle for the disabled with hybrid power according to claim 1, characterized in that: said USB reading and storage module (14) includes storage for external USB interfaces such as U disks and memory cards. The device can read the data of the external storage device and store the internally collected data in the external storage device. 3. The vehicle-mounted information system of a hybrid motorcycle for disabled persons according to claim 1, wherein the display of real-time working conditions of the electric motor, engine and battery pack in the vehicle comprises displaying through a touch screen (14). 4. The vehicle-mounted information system for a hybrid motorcycle for disabled persons according to claim 3, wherein the real-time working conditions include displaying start-up, low load, medium load, heavy load, and braking. 5. The vehicle-mounted information system of a hybrid motorcycle for the disabled according to claim 1, wherein the data acquisition and analysis in the vehicle include: collecting vehicle speed detection sensor (2), motor speed detection sensor (3), temperature detection The data of the sensor (4), the battery voltage and current detection sensor (5) is analyzed by the MCU control unit (1), and the collected data and analysis results are passed through the touch screen (14) equipped with in-vehicle data display and input control signal reception. Display, and perform corresponding operations according to the analysis results. 6. The vehicle-mounted information system for a motorcycle for the disabled with hybrid power according to claim 1, wherein the MCU control unit (1) analyzes the data collected in the car, if it is judged that there is a fault according to the analysis result, Then display on the touch screen (14), and start the sound and light alarm module. 7. The vehicle-mounted information system of a motorcycle for the disabled according to claim 1, wherein the GPS receiver (6) transmits the position information of the vehicle to the MCU control unit (1), and the MCU control unit ( 1) The comprehensive map database (7) and the vehicle speed detection circuit (2) display the position of the vehicle on the touch screen (14) equipped with in-vehicle data display and input control signal reception through the RS232 serial port (12).

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