Remote control constant-speed control system and method for new energy shunting locomotive

Abstract

The invention discloses a remote control constant-speed control system and method for a new energy shunting locomotive, and belongs to the technical field of locomotives for industrial and mining enterprises. A remote control constant speed control system and method for a new energy shunting locomotive comprises a locomotive remote control module, a locomotive microcomputer module and a locomotive traction control module. In order to solve the problems that the error between the actual running speed and the target speed is large and the application and popularization of a shunting locomotive are not facilitated in the traditional locomotive remote control method, a locomotive remote control module transmits a locomotive control signal to a locomotive microcomputer module; the locomotive microcomputer module receives the signal, converts the signal into a rotating speed value of a traction motor and sends the rotating speed value to the locomotive traction control module, the locomotive traction control module finally controls the locomotive to move at a constant speed, and the locomotive remote control module is sequentially lifted from a first gear to a fifth gear constant speed target value until the locomotive speed reaches the maximum; when parking is needed, the self-valve drives the air brake to stop, and therefore the remote control logic is simple and reliable, and constant-speed accurate control is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of locomotives for industrial and mining enterprises, and in particular to a remote control constant speed control system and method for a new energy shunting locomotive. Background Art

[0002] A shunting locomotive is a special locomotive used for vehicle marshaling and shunting in railway transportation. It usually has a smaller size and power to adapt to operational requirements in areas such as stations and freight yards.

[0003] Industrial and mining enterprises often use remote controls to control shunting locomotives during shunting operations. The running direction, working condition, speed, etc. of the shunting locomotive are controlled by remote control commands of the remote control, among which the control of the locomotive speed is the most critical. Traditional remote control locomotives control the locomotive speed by locomotive gear position, loading, unloading, air braking, etc. However, this control method has a large error between the actual operating speed and the target speed, which is not conducive to the application and promotion of shunting locomotives; therefore, it does not meet the existing needs. In this regard, the present application proposes a remote control constant speed control system and method for a new energy shunting locomotive. Summary of the invention

[0004] The object of the present invention is to provide a remote control constant speed control system and method for a new energy shunting locomotive. The locomotive control signal is transmitted to the locomotive microcomputer module through the locomotive remote control module. After receiving the signal, the locomotive microcomputer module converts it into the speed value of the traction motor and sends it to the locomotive traction control module. The locomotive traction control module finally controls the locomotive to move at a constant speed. When it needs to stop, the self-valve drives the air brake to stop, thereby realizing precise control of the constant speed, which can solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a remote control constant speed control system of a new energy shunting locomotive, comprising a locomotive remote control module, a locomotive microcomputer module and a locomotive traction control module, wherein the locomotive remote control module is connected to the locomotive microcomputer module via a hard line or a TRDP network, the locomotive microcomputer module is connected to the locomotive traction control module via a TRDP network, the locomotive microcomputer module and the locomotive traction control module are both connected to a power battery module, the locomotive microcomputer module controls the braking of the locomotive via a self-valve and a single valve, a traction motor is arranged inside the locomotive traction control module, and the self-valve and the single valve are both connected to the air brake.

[0006] Preferably, the upper limit value of the traction motor torque is the limit value of the traction torque output by the locomotive traction control module, and the maximum upper limit value of the traction motor torque is the limit value of the braking torque output by the locomotive traction control module.

[0007] Preferably, the vehicle control signal emitted by the locomotive remote control module includes a loading signal, a stop signal and a constant speed target value, and the constant speed target value has at least five gears, from the first gear to the fifth gear, which are 1km / h, 3km / h, 5km / h, 7km / h and 10km / h respectively.

[0008] A remote control constant speed control method for a new energy shunting locomotive is implemented based on a remote control constant speed control system of a new energy shunting locomotive, comprising the following steps:

[0009] S1. When the locomotive microcomputer module determines that the locomotive is in remote control mode and in parking state, the locomotive remote control module sends a locomotive control signal;

[0010] S2, the locomotive remote control module first sends a loading signal and then sends a first gear constant speed target value signal;

[0011] S3, the locomotive microcomputer module converts the received first-gear constant speed target value signal into a rotation speed value of the traction motor, and the locomotive traction control module uses the rotation speed value of the traction motor as the locomotive constant speed target value and starts the locomotive;

[0012] S4. After the locomotive reaches the first gear constant speed target value within the unit time, the locomotive remote control module sends the second gear constant speed target value. If the locomotive does not reach more than 90% of the first gear constant speed target value within the unit time, the locomotive gear position will automatically increase by one gear;

[0013] S5, the locomotive microcomputer module calculates the limit values ​​of the traction torque and the braking torque of the locomotive traction control module respectively and sends them to the locomotive traction control module;

[0014] S6. When the actual speed of the locomotive is greater than the second gear constant speed target value, the locomotive traction control module adjusts the braking torque within the range of the limit value, and the locomotive decelerates. When the actual speed of the locomotive is less than the second gear constant speed target value, the locomotive traction control module adjusts the traction torque within the range of the limit value, and the locomotive accelerates until the actual speed of the locomotive is equal to the second gear constant speed target value;

[0015] S7, the locomotive remote control module sequentially increases the constant speed target value to the fifth gear, and repeats steps S5 and S6 until the locomotive speed reaches the maximum value;

[0016] S8. When the locomotive needs to stop, the locomotive remote control module sends a stop signal to the locomotive traction control module, and the locomotive traction control module unloads. At this time, the constant speed target value is 0, and the self-valve drives the air brake to stop.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention transmits the vehicle control signal to the locomotive microcomputer module through the locomotive remote control module. After receiving the signal, the locomotive microcomputer module converts it into the speed value of the traction motor and sends it to the locomotive traction control module. The locomotive traction control module finally controls the locomotive to move at a constant speed. The locomotive remote control module increases the constant speed target value from the first gear to the fifth gear in sequence until the locomotive speed reaches the maximum. When it is necessary to stop, the self-valve drives the air brake to stop, thereby realizing simple and reliable remote control logic and precise control of constant speed.

[0019] 2. The present invention calculates the limit values ​​of the traction torque and braking torque of the locomotive traction control module respectively through the locomotive microcomputer module, and sends them to the locomotive traction control module. When the actual speed of the locomotive is greater than the current constant speed target value, the locomotive traction control module adjusts the braking torque within the limit value range, and the locomotive decelerates. When the actual speed of the locomotive is less than the current constant speed target value, the locomotive traction control module adjusts the traction torque within the limit value range, and the locomotive accelerates until the actual speed of the locomotive is equal to the current constant speed target value, and then increases the current constant speed target value to the next gear, thereby realizing precise control of the constant speed and improving the stability of the locomotive during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an overall schematic diagram of the present invention;

[0021] Figure 2 This is a control flow chart of the locomotive microcomputer module of the present invention.

[0022] In the figure: 1. locomotive remote control module; 2. locomotive microcomputer module; 201. self-valve; 202. single valve; 3. locomotive traction control module; 301. traction motor; 4. power battery module. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] In order to solve the problem that the traditional remote control locomotive method has a large error between the actual operating speed and the target speed, which is not conducive to the application and promotion of shunting locomotives, please refer to Figure 1-2 , this embodiment provides the following technical solutions:

[0025] A remote control constant speed control system for a new energy shunting locomotive comprises a locomotive remote control module 1, a locomotive microcomputer module 2 and a locomotive traction control module 3, the locomotive remote control module 1 is connected to the locomotive microcomputer module 2 via a hard line or a TRDP / RS485 / CAN network, the locomotive microcomputer module 2 is connected to the locomotive traction control module 3 via a TRDP / MVB network, the locomotive microcomputer module 2 and the locomotive traction control module 3 are both connected to a power battery module 4, the locomotive microcomputer module 2 controls the braking of the locomotive via a self-valve 201 and a single valve 202, a traction motor 301 is arranged inside the locomotive traction control module 3, and the self-valve 201 and the single valve 202 are both connected to the air brake.

[0026] The upper limit value of the torque of the traction motor 301 is the limit value of the traction torque output by the locomotive traction control module 3. The maximum upper limit value of the torque of the traction motor 301 is the limit value of the braking torque output by the locomotive traction control module 3. The vehicle control signal issued by the locomotive remote control module 1 includes a loading signal, a stop signal and a constant speed target value. The constant speed target value has at least five gears, from the first gear to the fifth gear, which are 1km / h, 3km / h, 5km / h, 7km / h and 10km / h respectively.

[0027] Specifically, the locomotive microcomputer module 2 determines the locomotive traction power according to the locomotive gear position and the power battery status, and calculates the upper limit value of the torque of the traction motor 301 at this time in combination with the running speed of the locomotive; the locomotive microcomputer module 2 calculates the maximum upper limit value of the torque of the traction motor 301 at this time according to the allowable charging power of the power battery and the running speed of the locomotive.

[0028] See Table 1 below for vehicle control signals

[0029]

[0030]

[0031] Table 1

[0032] A remote control constant speed control method for a new energy shunting locomotive is implemented based on a remote control constant speed control system of a new energy shunting locomotive, and is characterized in that it includes the following steps:

[0033] S1, when the locomotive microcomputer module 2 determines that the locomotive is in remote control mode and in parking state, the locomotive remote control module 1 sends a locomotive control signal;

[0034] S2, the locomotive remote control module 1 first sends a loading signal and then sends a first gear constant speed target value signal;

[0035] S3, the locomotive microcomputer module 2 converts the received first-gear constant speed target value signal into the speed value of the traction motor 301, and the locomotive traction control module 3 uses the speed value of the traction motor 301 as the target value of the locomotive constant speed and starts the locomotive;

[0036] S4, after the locomotive reaches the first gear constant speed target value within the unit time, the locomotive remote control module 1 sends the second gear constant speed target value. If the locomotive does not reach more than 90% of the first gear constant speed target value within the unit time, the locomotive gear position will automatically increase by one gear;

[0037] S5, the locomotive microcomputer module 2 calculates the limit values ​​of the traction torque and the braking torque of the locomotive traction control module 3 respectively and sends them to the locomotive traction control module 3;

[0038] S6. When the actual speed of the locomotive is greater than the second-gear constant speed target value, the locomotive traction control module 3 adjusts the braking torque within the range of the limit value, and the locomotive decelerates. When the actual speed of the locomotive is less than the second-gear constant speed target value, the locomotive traction control module 3 adjusts the traction torque within the range of the limit value, and the locomotive accelerates until the actual speed of the locomotive is equal to the second-gear constant speed target value;

[0039] S7, the locomotive remote control module 1 sequentially increases the constant speed target value to the fifth gear, and repeats steps S5 and S6 until the locomotive speed reaches the maximum value;

[0040] S8. When the locomotive needs to stop, the locomotive remote control module 1 sends a stop signal to the locomotive traction control module 3, and the locomotive traction control module 3 unloads. At this time, the constant speed target value is 0, and the self-valve 201 drives the air brake to stop.

[0041] Working principle: The locomotive control signal is transmitted to the locomotive microcomputer module 2 through the locomotive remote control module 1. After receiving the signal, the locomotive microcomputer module 2 converts it into the speed value of the traction motor 301 and sends it to the locomotive traction control module 3. The locomotive traction control module 3 finally controls the locomotive to move at a constant speed. The locomotive remote control module 1 increases from the first gear constant speed target value to the fifth gear constant speed target value in sequence until the locomotive speed reaches the maximum. When it is necessary to stop, the self-valve 201 drives the air brake to stop, thereby realizing simple and reliable remote control logic and precise control of constant speed.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A remote control constant speed control system for a new energy shunting locomotive, comprising a locomotive remote control module (1), characterized in that: The invention also comprises a locomotive microcomputer module (2) and a locomotive traction control module (3), wherein the locomotive remote control module (1) is connected to the locomotive microcomputer module (2) via a hard line or a TRDP network, the locomotive microcomputer module (2) is connected to the locomotive traction control module (3) via a TRDP network, the locomotive microcomputer module (2) and the locomotive traction control module (3) are both connected to a power battery module (4), the locomotive microcomputer module (2) controls the braking of the locomotive via a self-valve (201) and a single valve (202), a traction motor (301) is arranged inside the locomotive traction control module (3), and the self-valve (201) and the single valve (202) are both connected to an air brake.

2. The remote control constant speed control system of a new energy shunting locomotive according to claim 1 is characterized in that: The upper limit value of the torque of the traction motor (301) is the limit value of the traction torque output by the locomotive traction control module (3), and the maximum upper limit value of the torque of the traction motor (301) is the limit value of the braking torque output by the locomotive traction control module (3).

3. The remote control constant speed control system of a new energy shunting locomotive according to claim 1 is characterized in that: The locomotive control signal emitted by the locomotive remote control module (1) includes a loading signal, a stop signal and a constant speed target value, wherein the constant speed target value has at least five gears, and the first gear to the fifth gear are 1km / h, 3km / h, 5km / h, 7km / h and 10km / h respectively.

4. A remote control constant speed control method for a new energy shunting locomotive, implemented based on a remote control constant speed control system for a new energy shunting locomotive according to any one of claims 1 to 3, characterized in that: The following steps are involved: S1. When the locomotive microcomputer module (2) determines that the locomotive is in remote control mode and in a parking state, the locomotive remote control module (1) sends a locomotive control signal; S2, the locomotive remote control module (1) first sends a loading signal and then sends a first gear constant speed target value signal; S3, the locomotive microcomputer module (2) converts the received first gear constant speed target value signal into the rotation speed value of the traction motor (301), and the locomotive traction control module (3) uses the rotation speed value of the traction motor (301) as the locomotive constant speed target value and starts the locomotive; S4, after the locomotive reaches the first gear constant speed target value within the unit time, the locomotive remote control module (1) issues a second gear constant speed target value. If the locomotive does not reach more than 90% of the first gear constant speed target value within the unit time, the locomotive gear position is automatically increased by one gear; S5, the locomotive microcomputer module (2) calculates the limit values ​​of the traction torque and the braking torque of the locomotive traction control module (3) respectively and sends them to the locomotive traction control module (3); S6, when the actual speed of the locomotive is greater than the second gear constant speed target value, the locomotive traction control module (3) adjusts the braking torque within the range of the limit value, and the locomotive decelerates; when the actual speed of the locomotive is less than the second gear constant speed target value, the locomotive traction control module (3) adjusts the traction torque within the range of the limit value, and the locomotive accelerates, until the actual speed of the locomotive is equal to the second gear constant speed target value; S7, the locomotive remote control module (1) sequentially increases the constant speed target value to the fifth gear, and repeats steps S5 and S6 until the locomotive speed reaches the maximum value; S8. When the locomotive needs to stop, the locomotive remote control module (1) sends a stop signal to the locomotive traction control module (3), and the locomotive traction control module (3) is unloaded. At this time, the constant speed target value is 0, and the self-valve (201) drives the air brake to stop the vehicle.

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