Teaching trolley based on automobile three-electricity simulation system

Abstract

The utility model discloses a teaching trolley based on an automobile three-electricity simulation system. The teaching trolley comprises a teaching trolley body, a chassis support and an industrial control box. The teaching trolley body comprises a trolley chassis; the upper surface of the trolley chassis is provided with a standard profile interface, a control element mounting plate is mounted above the standard profile interface through a profile, and the standard profile interface is a reserved interface of the upper frame; the tail part of the trolley chassis is provided with open communication and electrical interfaces convenient for secondary development of customers; an industrial control screen is arranged on the industrial control box and is in signal connection with the whole vehicle controller through a wire harness, the left screen is a trolley model linkage teaching trolley and synchronously displays wheel rotation, vehicle lamp turning-on and turning-off and the like, and the right screen displays code operation conditions and displays code operation in real time. According to the teaching trolley chassis, the design concepts of light weight, modularization and intellectualization are adopted on the whole, and a chassis development platform can flexibly move on various road surfaces in addition to the hub motor with strong power and the Ackerman steering system which is independently researched and developed.

Description

Technical Field

[0001] The utility model relates to the field of development of three-electric systems for new energy vehicles, and in particular to a teaching vehicle based on a three-electric simulation system for a vehicle. Background Art

[0002] New energy vehicles have rapidly emerged around the world and have become a landmark achievement of the automotive industry revolution. Compared with traditional fuel vehicles, the most notable feature of new energy vehicles is their "three-electric" technology - battery system (battery), electric drive system (electric drive) and electric control system (electronic control). These three core technologies jointly build the power and control center of new energy vehicles, which not only determine the performance and safety of the vehicle, but also directly affect the energy efficiency and environmental protection level.

[0003] The functions of the traditional simulation system based on the "three electrics" of automobiles mainly include interior / exterior lights, motor speed control, steering control, window lift control, emergency stop control, etc., which communicate with each control module through the CAN / LIN bus, and the wiring harness design and software control logic are relatively complex. Common control modules of the "three electrics" simulation system of automobiles include vehicle control unit (VCU), motor control unit (MCU), battery management controller (BMS), steering controller and brake control unit (BCM). The modules are connected together through the CAN (Controller Area Network) bus or the LIN (Local Interconnect Network) bus, and exchange information through the communication protocol pre-defined by the manufacturer.

[0004] However, there is currently a lack of AUTOSAR-based automotive "three-electric" simulation systems on the market, which are unable to display the logic of AUTOSAR code operation. The lack of visualization and secondary development interfaces greatly reduces the intuitiveness, flexibility and developability of its application.

[0005] Therefore, this solution will solve the following shortcomings: the operating logic of the traditional teaching car is not visualized; the traditional teaching car lacks the "three-electric" simulation system based on the AUTOSAR architecture; the traditional teaching car lacks the interface for secondary development; the chassis of the traditional teaching car does not have a reserved interface, which makes it inconvenient to modify according to the usage function. Summary of the invention

[0006] In order to overcome the defects of the prior art, the purpose of the utility model is to provide a teaching car based on the automobile three-electric simulation system to solve the problems of the non-visualization of the operating logic of the traditional teaching car, the lack of secondary development interface, and the lack of reserved interfaces on the chassis for easy frame modification.

[0007] To this end, the utility model proposes a teaching trolley based on a three-electric simulation system of an automobile, comprising: a teaching trolley body, a chassis bracket and an industrial control box; the teaching trolley body is fixedly placed on the chassis bracket, and the wheels of the teaching trolley body are in a suspended state; the teaching trolley body comprises a trolley chassis, a front anti-collision touch-stop bar, a rear anti-collision touch-stop bar, a power battery, a front headlight, a rear headlight, a pair of Ackerman steering front wheels and a pair of rear wheels with hub motors; a standard profile interface is provided on the upper surface of the trolley chassis, a control element mounting plate is installed above the standard profile interface through the profile, and a vehicle controller and a motor control connected to the vehicle controller signal are installed on the control element mounting plate device, battery management controller, window lift controller and electronic control power steering system; wherein, the standard profile interface is a reserved interface for the upper frame; the rear of the car chassis is equipped with communication and electrical interfaces that are convenient for customers to open for secondary development; the industrial control box is located on one side of the teaching car body, and the industrial control box has an industrial control screen, which is connected to the vehicle controller signal through a wiring harness to realize lighting control, motor speed control, steering control and window lift control functions, and is displayed and debugged through the industrial control screen; wherein, the industrial control screen is divided into left and right screens, the left screen is a car model linkage teaching car, which synchronously displays wheel rotation, light on and off, etc., and the right screen displays the code running status and displays the code running in real time.

[0008] As a preferred technical solution of the present invention, the industrial control box also has a start button, and by pressing the start button, the teaching vehicle performs a real function demonstration according to the program debugged on the industrial control screen.

[0009] As a preferred technical solution of the present invention, the industrial control box also has an emergency stop button, and the teaching trolley can be stopped in an emergency by pressing the emergency stop button.

[0010] As a preferred technical solution of the present invention, the industrial control box also has a mechanical lock, and the mechanical lock is a mechanical authority switch of the entire teaching trolley.

[0011] As a preferred technical solution of the present invention, an operation panel is provided at the rear of the teaching trolley body, and an emergency brake button is provided on the operation panel.

[0012] As a preferred technical solution of the present invention, a bottom plate is provided below the chassis bracket, and the bottom of the industrial control box is fixedly connected to the bottom plate.

[0013] As a preferred technical solution of the present invention, universal wheels are provided at the bottom of the chassis bracket to facilitate the movement of the teaching trolley.

[0014] As a preferred technical solution of the present invention, the power battery is electrically connected to a battery management controller; the Ackerman steering front wheel is electrically connected to an electronically controlled power steering system; and the hub motor is electrically connected to a motor controller.

[0015] As a preferred technical solution of the present invention, the front headlights and the rear headlights are respectively connected to the vehicle controller via signals.

[0016] As a preferred technical solution of the present invention, the front anti-collision touch-and-stop strip and the rear anti-collision touch-and-stop strip are connected to the vehicle controller signal through a collision processing module.

[0017] The chassis of the teaching car based on the automobile three-electric simulation system provided by the utility model adopts a lightweight, modular, and intelligent design concept as a whole. In addition, it is equipped with a powerful wheel hub motor and an independently developed Ackerman steering system, so that the chassis development platform can move flexibly on various road surfaces. Safety anti-collision touch-stop strips are installed all around the vehicle body to reduce damage to the vehicle body in the event of an emergency. The secondary development interface provided by the teaching car improves the convenience of re-development and the stability of the teaching car itself. The industrial control screen it is equipped with improves the convenience of operation and the degree of visualization. There are four standard profile interfaces on the surface of the car body reserved for users to install and use, which is convenient for customers to transform it into a car with different functions.

[0018] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1 The structure of the teaching vehicle based on the automobile three-electric simulation system of the utility model is shown in FIG. Figure 1 ;

[0021] Figure 2 The structure of the teaching vehicle based on the automobile three-electric simulation system of the utility model is shown in FIG. Figure 2 ;

[0022] Figure 3 It is a signal control diagram of the teaching car based on the automobile three-electric simulation system of the utility model;

[0023] Figure 4 This is an interface diagram of the industrial control screen in the teaching car based on the automobile three-electric simulation system of the utility model;

[0024] Description of Reference Numerals

[0025] 1. Bottom plate; 2. Chassis bracket; 21. Universal wheel; 22. Standard profile interface; 3. Industrial control box; 31. Industrial control screen; 32. Emergency stop button; 33. Start button; 34. Mechanical lock; 4. Ackerman steering front wheel; 5. Front anti-collision touch stop strip; 6. Headlight; 7. Control element mounting plate; 8. Vehicle controller; 9. Motor controller; 10. Battery management controller; 11. Electronically controlled power steering system; 12. Window lift controller; 13. Operation panel; 14. Rear headlight; 15. Hub motor; 16. Communication and electrical interface; 17. Power battery; 18. Rear anti-collision touch stop strip. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] like Figure 1 to Figure 3 As shown, the teaching trolley based on the automobile three-electric simulation system of the utility model includes a teaching trolley body, a chassis bracket 2, a bottom plate 1 and an industrial control box 3; the teaching trolley body is fixedly placed on the chassis bracket 2, and the chassis bracket 2 is placed on the bottom plate 1, and the wheels of the teaching trolley body are in a suspended state; at the same time, the industrial control box 3 is located on one side of the teaching trolley body, and the bottom of the industrial control box 3 is fixedly connected to the bottom plate 1. Among them, a universal wheel 21 is provided at the bottom of the chassis bracket 2 to facilitate the movement of the teaching trolley.

[0028] Specifically, the teaching trolley body includes a trolley chassis, a front anti-collision touch stop bar 5, a rear anti-collision touch stop bar 18, a power battery 17, a front headlight 6, a rear headlight 14, a pair of Ackerman steering front wheels 4, an operating panel 13 and a pair of rear wheels with hub motors 15; a standard profile interface 22 is provided on the upper surface of the trolley chassis, and a control element mounting plate 7 is installed above the standard profile interface 22 through the profile; the control element mounting plate 7 is installed with a vehicle controller 8, a motor controller 9, a battery management controller 10, a window lift controller 12 and an electronic control power steering system 11. Among them, the rear part of the trolley chassis is equipped with a communication and electrical interface 16 that is convenient for customers to open for secondary development, and the standard profile interface 22 is a reserved interface of the upper frame, which is convenient for customers to transform it into a trolley with different functions.

[0029] like Figure 1 , Figure 4As shown, the industrial control box 3 has an industrial control screen 31, which is connected to the vehicle controller 8 signal through a wiring harness, which is convenient for debugging the electrical components on the teaching trolley; the industrial control screen 31 displays the analog instrument interface to achieve the function of controlling the realization of the function - click or drag the different functional controls in the virtual instrument, and the internal communication conversion is converted into CAN signals and transmitted to the teaching trolley. The teaching trolley analyzes the CAN signal control requirements and realizes the corresponding functions synchronously. The industrial control screen is divided into left and right screens. The left screen is a trolley model linkage teaching trolley, which synchronously displays the rotation of the wheels, the on and off of the lights, etc. The right screen displays the code running status and displays the code running in real time. The industrial control screen solves the problems of no visualization, poor human-computer interaction, and low control conversion efficiency in the past.

[0030] The industrial control box 3 also has an emergency stop button 32, a start button 33 and a mechanical lock 34; the mechanical lock 34 is a mechanical authority switch for the entire teaching trolley, and the teaching function can only be enabled by inserting a key into the mechanical lock; after the teaching personnel have debugged the program on the industrial control screen 31, they can press the start button 33 to make the teaching trolley perform a real function demonstration according to the parameters; when an emergency occurs during the demonstration of the teaching trolley, the teaching trolley can be stopped by pressing the emergency stop button 32.

[0031] like Figure 1 , Figure 2 As shown, the front anti-collision stop bar 5 is installed at the front end of the chassis of the trolley, and the rear anti-collision stop bar 18 is installed at the rear end of the chassis of the trolley. The front anti-collision stop bar 5 and the rear anti-collision stop bar 18 are respectively provided with collision sensors, and the collision sensors are then connected to the vehicle controller 8 through the collision processing module. Similarly, the front headlight 6 and the rear headlight 14 are respectively connected to the vehicle controller 8.

[0032] A pair of Ackerman steering front wheels 4 are installed at the front part of the vehicle chassis through a steering mechanism, and the steering mechanism is controlled by an electronically controlled power steering system 11, and the electronically controlled power steering system 11 is connected to the vehicle controller 8 by signal; the pair of Ackerman steering front wheels 4 are controlled by the vehicle controller 8 to complete the steering debugging.

[0033] The rear wheel with the hub motor 15 is installed at the rear of the car chassis. The hub motor 15 is controlled by the motor controller 9, and the motor controller 9 is connected to the vehicle controller 8 by signal; the rear wheel acceleration and deceleration control is realized by the vehicle controller 8.

[0034] The power battery 17 is installed at the rear of the car chassis. The power battery 17 is electrically connected to the hub motor 15, the steering mechanism and other electrical appliances that require strong electric drive, and the power battery 17 is connected to the vehicle controller 8 through the battery management controller 10. The discharge rate and other parameters of the power battery 17 are controlled by the battery management controller 10.

[0035] In this solution, the vehicle controller 8 (VCU): VCU, as the central control unit of the new energy vehicle, is the core of the entire control system of this design solution. Its application scenarios cover the power system, energy management, drive control, safety control, vehicle network and communication of the entire vehicle.

[0036] Motor controller 9 (MCU): MCU implements speed control, steering control, torque control, etc. of the motor, controls the starting and running, forward and backward speed, climbing strength and other driving conditions of the electric vehicle, or helps the electric vehicle brake, and stores part of the braking energy in the power battery.

[0037] Battery management controller 10 (BMS): BMS monitors and manages various key parameters of the battery, such as voltage, current, temperature, etc. of the battery pack, and controls the charging and discharging process to ensure safe operation and performance optimization of the battery.

[0038] Electronically controlled power steering system 11 (EPS): EPS is mainly composed of a torque sensor, a vehicle speed sensor electronic control unit, an electric motor and an electromagnetic clutch. It determines the size and direction of the assist torque based on the input signal, that is, selects the current and direction of the electric motor to adjust the size of the steering assist power.

[0039] The working principle of the teaching vehicle based on the automobile three-electric simulation system of the present invention is briefly described below.

[0040] The chassis of this solution adopts the design concept of lightweight, modular and intelligent. With powerful wheel hub motors and the independently developed Ackerman steering system, the chassis development platform can move flexibly on various road surfaces. Safety anti-collision stop strips are installed around the body to reduce damage to the body in the event of an emergency.

[0041] There are lights installed in front of the vehicle body, and the front side is designed with white light for lighting; there are red taillights installed at the rear of the vehicle body, which light up to remind when braking. There is an operation panel 13 at the rear, and an emergency brake button is provided on the operation panel 13. In an emergency, an emergency stop operation can be quickly performed to avoid safety accidents and reduce or avoid unnecessary losses. Open electrical interfaces and communication interfaces are configured at the rear of the vehicle body to facilitate secondary development by customers. The electrical interface uses aviation waterproof connectors in design and selection, which is conducive to user expansion and use on the one hand, and enables the unmanned vehicle to be used in some harsh environments on the other hand. There are four standard profile interfaces on the surface of the vehicle body reserved for users to install and use.

[0042] This solution integrates MCU and multiple functional chips at the hardware level of each controller, and adopts the AUTOSAR architecture at the software level. The software application layer is designed according to the functional specifications, and then the basic software layer in the software architecture is implemented. Finally, the application code based on the AUTOSAR architecture is burned into the MCU of different controllers, and the combination of software and hardware realizes the functions of the teaching car's lighting control, motor speed control, steering control, window lifting control and emergency stop control. The use of the AUTOSAR architecture fills the gap in the industry where there is no teaching car based on this architecture, improves the reuse of the software, and reduces the time and labor costs of software transplantation when the hardware needs to be updated and iterated.

[0043] like Figure 3 As shown in the figure, the circuit diagram of the intelligent connected vehicle wire-controlled chassis system: This solution divides the traditional electronic control system into vehicle controller, motor controller, battery management controller, steering controller and brake controller according to function. These controllers realize functions such as lighting control, motor speed control, steering control, window lifting control and emergency stop control.

[0044] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A teaching vehicle based on a vehicle three-electric simulation system, characterized in that: include: A teaching trolley body, a chassis bracket (2) and an industrial control box (3); the teaching trolley body is fixedly placed on the chassis bracket (2), and the wheels of the teaching trolley body are in a suspended state; The teaching trolley body comprises a trolley chassis, a front anti-collision touch stop bar (5), a rear anti-collision touch stop bar (18), a power battery (17), a front headlight (6), a rear headlight (14), a pair of Ackerman steering front wheels (4) and a pair of rear wheels with wheel hub motors (15); a profile interface (22) is provided on the upper surface of the trolley chassis, a control element mounting plate (7) is installed above the profile interface (22) through the profile, and a vehicle controller (8) and a motor controller (9) connected to the vehicle controller (8) by signal, a battery management controller (10), a window lift controller (12) and an electronic control power steering system (11) are installed on the control element mounting plate (7); wherein the profile interface (22) is a reserved interface of the upper frame; and a communication and electrical interface (16) is configured at the rear of the trolley chassis to facilitate secondary development and opening by customers; The industrial control box (3) is located on one side of the teaching trolley body. The industrial control box (3) is provided with an industrial control screen (31), which is connected to the vehicle controller (8) by a wiring harness to realize light control, motor speed control, steering control and window lifting control functions, and is displayed and debugged through the industrial control screen (31); wherein the industrial control screen (31) is divided into a left and right screen design, the left screen is a trolley model linkage teaching trolley, synchronously displays wheel rotation and light on and off, and the right screen displays code running status, and displays code running in real time.

2. The teaching vehicle based on the automobile three-electric simulation system according to claim 1 is characterized in that: The industrial control box (3) also has a start button (33), and by pressing the start button (33), the teaching vehicle performs a real function demonstration according to the program debugged on the industrial control screen (31).

3. The teaching vehicle based on the automobile three-electric simulation system according to claim 1 is characterized in that: The industrial control box (3) also has an emergency stop button (32), and by pressing the emergency stop button (32), the teaching trolley stops working in an emergency.

4. The teaching vehicle based on the automobile three-electric simulation system according to claim 1 is characterized in that: The industrial control box (3) also has a mechanical lock (34), and the mechanical lock (34) is a mechanical authority switch for the entire teaching trolley.

5. The teaching vehicle based on the automobile three-electric simulation system according to claim 1 is characterized in that: An operating panel (13) is provided at the rear of the teaching trolley body, and an emergency brake button is provided on the operating panel (13).

6. The teaching vehicle based on the automobile three-electric simulation system according to claim 1 is characterized in that: A bottom plate (1) is provided below the chassis bracket (2), and the bottom of the industrial control box (3) is fixedly connected to the bottom plate (1).

7. The teaching vehicle based on the automobile three-electric simulation system according to claim 6 is characterized in that: The bottom of the chassis bracket (2) is provided with a universal wheel (21) to facilitate the movement of the teaching trolley.

8. The teaching vehicle based on the automobile three-electric simulation system according to claim 1 is characterized in that: The power battery (17) is electrically connected to a battery management controller (10); the Ackerman steering front wheel (4) is electrically connected to an electronically controlled power steering system (11); and the wheel hub motor (15) is electrically connected to a motor controller (9).

9. The teaching vehicle based on the automobile three-electric simulation system according to claim 1 is characterized in that: The front headlight (6) and the rear headlight (14) are respectively connected to the vehicle controller (8) via signals.

10. The teaching vehicle based on the automobile three-electric simulation system according to claim 1 is characterized in that: The front anti-collision stop strip (5) and the rear anti-collision stop strip (18) are connected to the vehicle controller (8) by signals via a collision processing module.

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