New energy locomotive electric control system

Abstract

The utility model relates to an electric control system of a new energy locomotive, which comprises a programmable controller, a touch screen, a driver, an auxiliary power supply system, a CAN / TCP (controller area network / transmission control protocol) conversion module and a switch, the programmable controller is provided with a communication module with a plurality of communication interfaces, and the programmable controller, the touch screen, the driver and the auxiliary power supply system are respectively connected with the switch through the Ethernet. The CAN / TCP conversion module is connected with the switch through a network cable, and the programmable controller communicates with the touch screen, the driver, the auxiliary power supply system and the CAN / TCP conversion module through the switch; the CAN / TCP conversion module is in CAN communication with the battery management system and the water cooling system; the programmable controller is in RS485 communication with the air compressor and the drying machine; according to the electric control system, all the systems are connected together, information interaction among all the systems is achieved, logic control is conducted, and finally the state of the whole vehicle is displayed through a visual human-computer interface.

Description

Technical Field

[0001] The utility model relates to an electric control system, in particular to an electric control system for a new energy locomotive, and belongs to the technical field of locomotive control system applications. Background Art

[0002] While ensuring the normal operation of locomotive production, responding to the national call for clean production, energy conservation and emission reduction, reducing costs, and eliminating exhaust pollution, the rail shunting industry can adopt new intelligent rail electric locomotives to effectively eliminate many unfavorable factors and conform to industry development trends. The new intelligent rail electric locomotive control system is the control core of the entire vehicle. It can control locomotive operation and monitor locomotive operating data. Developing a locomotive electronic control system that connects various systems to control and display normal status is becoming a trend.

[0003] At present, CN205498658U is an integrated electronic control system for new energy vehicles. To address the many defects of the discrete control of traditional new energy vehicle electronic control systems, it integrates the motor, motor controller, vehicle controller, power control system, and communication network used in new energy vehicles for control, thereby improving the driving efficiency and intelligent control level of the vehicle. However, this electronic control system is used for automobiles, which is different from train locomotives, and the equipment of trains is different from that of automobiles. For example, train braking mainly relies on air brakes, which involve air compressors and dryers. It is a separate product without CAN communication mode and cannot perform control communication. Therefore, this electronic control system cannot be used on trains. Utility Model Content

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology and provide an electronic control system for new energy locomotives, which connects various systems, realizes information interaction between various systems, performs logical control and finally displays the status of the entire vehicle through a visual human-machine interface.

[0005] In order to solve the above technical problems, the utility model provides an electric control system for a new energy locomotive, including a touch screen, a programmable controller, a driver, an auxiliary power system, a CAN / TCP conversion module and a switch. The programmable controller is equipped with a communication module containing multiple communication interfaces. The programmable controller, the touch screen, the driver, and the auxiliary power system are respectively connected to the switch via Ethernet. The CAN / TCP conversion module is connected to the switch via a network cable. The programmable controller communicates with the touch screen, the driver, the auxiliary power system and the CAN / TCP conversion module via the switch.

[0006] CAN / TCP conversion module communicates with the battery management system and water cooling system via CAN;

[0007] The programmable controller communicates with the air compressor and dryer via RS485.

[0008] The technical solution further defined in the present utility model is:

[0009] Furthermore, in the aforementioned new energy locomotive electronic control system, the multiple communication interfaces include an RS485 communication interface and a TCP communication interface.

[0010] Technical effect: multiple communication interfaces facilitate the connection and integration of systems with inconsistent communication methods, facilitating effective control.

[0011] The aforementioned new energy locomotive electronic control system also includes a driver controller, which is connected to the programmable controller through hard wiring. The programmable controller collects signals from the driver controller and sends a forward or reverse signal to the drive.

[0012] In the aforementioned new energy locomotive electronic control system, the driver receives the command signal from the programmable controller to control the motor to rotate forward or reverse.

[0013] In the aforementioned new energy locomotive electronic control system, the auxiliary power supply system converts the high voltage of the battery into low voltage to power the low-voltage equipment.

[0014] In the aforementioned new energy locomotive electronic control system, the low voltage does not exceed 380V.

[0015] In the aforementioned new energy locomotive electronic control system, the touch screen displays the status of each device such as battery, driver, motor, air compressor, and dryer through communication.

[0016] In the aforementioned new energy locomotive electronic control system, the CAN / TCP conversion module converts the CAN communication protocol into the TCP communication protocol, and connects the battery management system and the water cooling system in parallel via the CAN communication network for communication.

[0017] In the aforementioned new energy locomotive electronic control system, the battery management system and water cooling system interact with the programmable controller through the CAN / TCP conversion module. The programmable controller, touch screen, driver, auxiliary power system, and CAN / TCP conversion module interact with each other through the switch, and finally the vehicle status is displayed on the touch screen.

[0018] The beneficial effects of the utility model are:

[0019] The programmable controller of this utility model can be configured as a multi-communication module with communication interfaces such as 485 and TCP. CAN communication is connected to the CAN / TCP conversion module via a network cable, and the CAN / TCP conversion module is connected to a switch via a network cable. Other communication modes are directly connected to the corresponding interfaces of the programmable controller. The host computer software captures the CAN communication information and integrates it into the programmable controller, effectively solving the problem of the difficulty of information exchange between the various systems of intelligent rail electric locomotives, and some equipment can only adopt hard-wired control methods. At the same time, the status of each locomotive device can be monitored, and the status of the entire vehicle is displayed through a visual human-machine interface, namely a touch screen, which facilitates control and observation, thereby improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the electric control system for a new energy locomotive according to an embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the connection structure between the programmable controller, the air compressor and the dryer in the electric control system of a new energy locomotive according to an embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the TCP / CAN conversion module, battery management system, and water cooling system in the new energy locomotive electronic control system in an embodiment of the utility model connected in parallel via a CAN communication network;

[0023] In the figure: 1- touch screen, 2- programmable controller, 3- driver, 4- auxiliary power system, 5- CAN / TCP conversion module, 6- switch, 7- battery management system, 8- water cooling system, 9- air compressor, 10- dryer. DETAILED DESCRIPTION Example 1

[0024] This embodiment provides a new energy locomotive electronic control system, the structure of which is as follows Figure 1 As shown, it includes a programmable controller 2, a touch screen 1, a driver 3, an auxiliary power system 4, a CAN / TCP conversion module 5 and a switch 6. The programmable controller 2 is configured with a communication module including RS485 and TCP communication interfaces. The programmable controller 2, the touch screen 1, the driver 3, and the auxiliary power system 4 are respectively connected to the switch 6 via Ethernet. The CAN / TCP conversion module 5 is connected to the switch 6 via a network cable. The programmable controller 2 communicates with the touch screen 1, the driver 3, the auxiliary power system 4 and the CAN / TCP conversion module 5 through the switch 6.

[0025] like Figure 3 As shown, the CAN / TCP conversion module 5 communicates with the battery management system 7 and the water cooling system 8 through CAN;

[0026] like Figure 2 As shown, the programmable controller 2 communicates with the air compressor 9 and the dryer 10 via RS485;

[0027] The auxiliary power system 4 converts the high voltage of the battery into a low voltage not exceeding 380V to supply power to low-voltage equipment;

[0028] The CAN / TCP conversion module 5 converts the CAN communication protocol into the TCP communication protocol, and connects the battery management system 7 and the water cooling system 8 in parallel via the CAN communication network for communication;

[0029] The driver controller is connected to the programmable controller 2 through hard wiring. The programmable controller 2 collects the signal from the driver controller and sends a forward or reverse signal to the driver 3. The driver 3 receives the command signal from the programmable controller 2 to control the locomotive motor to run forward or reverse, thereby controlling the whole vehicle to move forward or backward.

[0030] The battery management system 7 and the water cooling system 8 interact with the programmable controller 2 through the CAN / TCP conversion module 5. The programmable controller 2, the touch screen 1, the driver 3, the auxiliary power system 4, and the CAN / TCP conversion module 5 interact with each other through the switch 6, and finally the vehicle status is displayed on the touch screen 1.

[0031] In this embodiment, the touch screen 1 displays the status of the battery, driver, locomotive motor, air compressor, and dryer through communication. The battery is intelligently managed and maintained by a battery management system; the motor drives the locomotive forward and backward. Each component in this utility model utilizes conventional components from the prior art. CAN communication is connected to a CAN / TCP conversion module 5 via a network cable, which is then connected to a switch 6. Other communication modes are directly connected to the corresponding interfaces of the programmable controller 2. The host computer software in the touch screen 1 captures the CAN communication information and integrates it into the programmable controller 2, enabling monitoring of the status of each locomotive device and displaying the entire vehicle status through a visual human-machine interface.

[0032] In addition to the above embodiments, the present invention may also have other implementations. Any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection required by the present invention.

Claims

1. A new energy locomotive electronic control system, characterized by: The invention comprises a touch screen (1), a programmable controller (2), a driver (3), an auxiliary power supply system (4), a CAN / TCP conversion module (5) and a switch (6), wherein the programmable controller (2) is provided with a communication module having a plurality of communication interfaces, the programmable controller (2), the touch screen (1), the driver (3) and the auxiliary power supply system (4) are respectively connected to the switch (6) via Ethernet, the CAN / TCP conversion module (5) is connected to the switch (6) via a network cable, and the programmable controller (2) communicates with the touch screen (1), the driver (3), the auxiliary power supply system (4) and the CAN / TCP conversion module (5) via the switch (6); The CAN / TCP conversion module (5) communicates with the battery management system (7) and the water cooling system (8) via CAN; The programmable controller (2) communicates with the air compressor (9) and the dryer (10) via RS485.

2. The new energy locomotive electronic control system according to claim 1, characterized in that: The multiple communication interfaces include an RS485 communication interface and a TCP communication interface.

3. The new energy locomotive electronic control system according to claim 1, characterized in that: It also includes a controller, which is connected to the programmable controller (2) through hard wiring. The programmable controller (2) sends a forward or backward signal to the driver (3) by collecting the controller signal.

4. The new energy locomotive electronic control system according to claim 3 is characterized in that: The driver (3) receives a command signal from the programmable controller (2) to control the forward or reverse rotation of the motor.

5. The new energy locomotive electronic control system according to claim 1, characterized in that: The auxiliary power supply system (4) converts the high voltage of the battery into a low voltage to supply power to the low voltage equipment.

6. The new energy locomotive electronic control system according to claim 5, characterized in that: The low voltage is no more than 380V.

7. The new energy locomotive electronic control system according to claim 4, characterized in that: The touch screen (1) displays the status of each device including the battery, driver, motor, air compressor and dryer through communication.

8. The new energy locomotive electronic control system according to claim 1, characterized in that: The CAN / TCP conversion module (5) converts the CAN communication protocol into the TCP communication protocol, and connects the battery management system (7) and the water cooling system (8) in parallel via the CAN communication network for communication.

9. The new energy locomotive electronic control system according to claim 1, characterized in that: The battery management system (7) and the water cooling system (8) exchange information with the programmable controller (2) via the CAN / TCP conversion module (5); the programmable controller (2), the touch screen (1), the driver (3), the auxiliary power system (4), and the CAN / TCP conversion module (5) exchange information via the switch (6); and finally, the vehicle status is displayed on the touch screen (1).

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