CN214084217U - Super-large-size multi-drive rail car power control system - Google Patents
Super-large-size multi-drive rail car power control system Download PDFInfo
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- CN214084217U CN214084217U CN202022914863.3U CN202022914863U CN214084217U CN 214084217 U CN214084217 U CN 214084217U CN 202022914863 U CN202022914863 U CN 202022914863U CN 214084217 U CN214084217 U CN 214084217U
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Abstract
A power control system of an oversized multi-drive rail car comprises a master control computer, a CAN gateway in communication connection with the master control computer, a vehicle control unit, a motor controller and a battery management system; the CAN gateway is in communication connection with the vehicle control unit through a CAN bus, and the vehicle control unit is in communication connection with the multiple groups of motor controllers and the battery management system through the CAN bus; the motor controller is connected with a wheel edge motor and a sensor and used for driving the wheel edge motor to operate according to a command issued by the vehicle control unit and uploading sensor data to the vehicle control unit; the battery management system is used for outputting direct current to the motor controller according to the instruction issued by the vehicle control unit. The utility model provides a pair of rail car power control system is driven more to super large-size can realize the high-speed even running of super large-size rail car.
Description
Technical Field
The utility model relates to a rail car power control system is driven more to super large-size belongs to electric rail vehicle technical field.
Background
In recent years, the demand of special vehicles in the field of national defense and military industry is increasing, and the requirements of vehicle types are also becoming more complicated. Under some special application scenes, the ultra-long and ultra-wide railcar carriers are often required to be designed for transferring certain large equipment to meet application requirements, and as the size of a vehicle chassis is increased, a power and control system needs to be redesigned to realize the driving function of the ultra-large railcar.
The power and control system of common rail transit vehicles such as high-speed rails, subways, single rails, light rails and the like is usually designed into a centralized power driving system, and the output torque of a central motor is transmitted to each driving wheel set through a complex transmission system.
Disclosure of Invention
The utility model aims to overcome not enough among the prior art, provide a rail car power control system is driven more to super large-size, can realize the high-speed even running of super large-size rail car.
In order to achieve the purpose, the utility model provides an oversized multi-drive rail car power control system, which comprises a master control computer, a CAN gateway in communication connection with the master control computer, a vehicle control unit, a motor controller and a battery management system;
the CAN gateway is in communication connection with a vehicle control unit through a CAN bus, and the vehicle control unit is in communication connection with a plurality of groups of motor controllers and a battery management system through the CAN bus;
the motor controller is connected with a wheel edge motor and a sensor and used for driving the wheel edge motor to operate according to a command issued by the vehicle control unit and uploading sensor data to the vehicle control unit;
the battery management system is used for outputting direct current to the motor controller according to an instruction issued by the vehicle control unit.
Furthermore, the general control computer is in communication connection with the CAN gateway through a TCP communication line.
Furthermore, the whole vehicle controller has a plurality of groups, and is in communication connection with the CAN gateway through respective independent CAN buses.
Furthermore, a group of vehicle controllers is in communication connection with a plurality of groups of motor controllers and a battery management system.
Preferably, the two groups of motor controllers and the battery management system share one CAN bus and are in communication connection with the same vehicle control unit.
Preferably, the CAN bus is a high-speed CAN bus.
Furthermore, the CAN bus is a linear topological structure, and the whole vehicle controller, the motor controller and the battery management system are connected to the CAN bus through a fulcrum.
The battery management system is connected with the inverter through a direct current circuit, and the inverter is connected with the braking device through a three-phase alternating current circuit to provide power input for the braking device.
Furthermore, the braking device is connected to the CAN bus through a fulcrum, and braking release are performed according to an instruction issued by the whole vehicle controller.
Further, the braking device comprises an air compressor and a braking system, the air compressor can generate high-pressure air, and the braking system receives an instruction of the vehicle control unit and inputs/stops the high-pressure air into a hub braking air chamber of the braking system to realize braking/brake releasing.
Further, the battery management system has a battery pack, which is an electrical energy storage device that provides electrical energy output in the form of direct current to the inverter and the motor controller.
Furthermore, every 2 wheel motors are in one group and are installed on a tire bogie of the oversized multi-drive rail car in a centrosymmetric mode.
Preferably, 2 wheel-side motors are respectively installed on the left and right sides of the bogie.
Preferably, 2 tires are mounted on each tire truck.
Further, the sensors comprise a temperature sensor for acquiring temperature and a rotary transformer sensor for acquiring the rotating speed of the wheel-side motor.
Preferably, the wheel-side motor output torque value is obtained by measuring a motor coil current.
Compared with the prior art, the utility model discloses the beneficial effect who reaches:
according to the invention, the whole vehicle controller is in communication connection with the whole vehicle controller through the CAN bus through the general control computer and the CAN gateway, and the whole vehicle controller is in communication connection with the multiple groups of motor controllers and the battery management system through the CAN bus, so that the problem that the length of the CAN bus is not too long CAN be solved, and the distribution and control of a whole vehicle power system are realized;
the motor controller provided by the invention is connected with the wheel edge motor and the sensor, and is used for driving the wheel edge motor to operate according to the command issued by the vehicle control unit and uploading the sensor data to the vehicle control unit, so that the issuing of a torque command can be completed, the torque output can be realized, and the state parameter readback can be realized;
according to the invention, 2 wheel-side motors are arranged in one group at each time, and are centrosymmetrically arranged on the tire bogie of the oversized multi-drive rail car, so that uniform distribution of load can be realized, and the center of gravity is ensured to be positioned on the central line of the bogie.
Drawings
Fig. 1 is a structural diagram of a chassis device of an oversized multi-drive rail car according to an embodiment of the invention;
fig. 2 is a side view of a wheelset portion of an oversized multi-wheel drive railcar according to an embodiment of the present invention;
fig. 3 is a schematic view of a power control system of an oversized multi-wheel-drive rail car provided in an embodiment of the invention;
fig. 4 is an installation schematic diagram of a wheel-side motor of an oversized multi-drive rail car power control system provided in an embodiment of the present invention.
In the figure: 1. a wheel-side motor; 2. a tire; 3. a bogie; 4. a suspension system; 5. a frame; 6. a concrete track.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to describe distinctions and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
Example 1:
as shown in figure 1, the utility model relates to a rail car is driven more to oversize installs on the chassis of rail car is driven more to oversize, and the chassis wheel base that rail car was driven more to oversize is not less than 6 meters, head and the tail wheel base are not less than 70 meters.
As shown in fig. 1, an oversized multi-drive railcar runs on a concrete track 6. The chassis of the oversized multi-drive rail car consists of a wheel edge motor 1, tires 2, a bogie 3, a suspension system 4 and a frame 5. As shown in fig. 2, 2 tires 2 are mounted on each bogie 3 to form a wheel set. Every 2 wheel limit motors 1 are a set of, install respectively on 2 tires 2 of same wheelset, and are central symmetric distribution, and 2 wheel limit motors 1 are installed respectively on the left side and the right side of bogie 3 promptly, realize load evenly distributed to guarantee that the focus of wheelset is located the bogie center line.
Specifically, the tire 2 is a rubber tire.
A power control system of an oversized multi-drive rail car comprises a master control computer, a CAN gateway in communication connection with the master control computer, a vehicle control unit, a motor controller and a battery management system; the CAN gateway is in communication connection with the vehicle control unit through a CAN bus, and the vehicle control unit is in communication connection with the multiple groups of motor controllers and the battery management system through the CAN bus; the motor controller is connected with the wheel edge motor 1 and the sensor and used for driving the wheel edge motor 1 to operate according to a command issued by the vehicle control unit and uploading sensor data to the vehicle control unit; the battery management system is used for outputting three-phase alternating current to the motor controller according to an instruction issued by the vehicle control unit.
Specifically, the general control computer is in communication connection with the CAN gateway through a TCP communication line. The whole vehicle controller has a plurality of groups and is in communication connection with the CAN gateway through respective independent CAN buses. And the whole vehicle controller is in communication connection with the plurality of motor controllers and the battery management system. The CAN bus is a high-speed CAN bus and a linear topological structure, and the whole vehicle controller, the motor controller and the battery management system are connected into the CAN bus through a fulcrum.
Generally, two sets of motor controllers and a battery management system share one CAN bus and are in communication connection with the same vehicle control unit.
The battery management system is connected with the inverter through a direct current circuit, the inverter is connected with the braking device through a three-phase alternating current circuit, and the inverter performs braking and brake release according to a command issued by the vehicle control unit.
Specifically, the braking device comprises an air compressor and a braking system. The brake system belongs to a pneumatic brake system, an air compressor provides high-pressure gas input for the brake system after working, and the brake system inputs the high-pressure gas into a hub brake chamber after receiving a brake instruction of a vehicle control unit to realize a brake function; and after receiving a braking releasing instruction of the vehicle control unit, the braking system stops inputting high-pressure gas into the hub braking air chamber to release the braking function.
The battery management system has a battery pack, which is an electrical energy storage device that provides electrical energy output to the power system in the form of direct current.
Specifically, the sensors include a temperature sensor for acquiring temperature and a resolver sensor for acquiring the rotating speed of the wheel-side motor 1, and the output torque value of the wheel-side motor 1 is obtained by measuring the current of a motor coil.
Example 2:
as shown in fig. 3, the implementation process of the power control system of an oversized multi-wheel drive rail car of the present invention is described by taking an oversized rail car with eight wheels as an example.
As shown in fig. 4, 8 sets of wheel-side motors 1 are respectively installed on 4 sets of wheel sets, 2 sets of wheel sets (4 wheel-side motors) are arranged at the head part of the oversized multi-drive rail car, and 2 sets of wheel sets (4 wheel-side motors) are arranged at the tail part of the oversized multi-drive rail car.
In order to solve the problem that the length of a high-speed CAN bus is not suitable to be too long, 4 paths of CAN buses are designed to respectively control the 4 sets of wheel sets, the topological structures of the CAN buses are completely the same, the CAN buses are linear topological structures, a whole vehicle controller, a battery management system and a motor controller are all connected into the CAN buses through fulcrums, and a general control computer is communicated with the 4 paths of CAN buses through a CAN gateway. The power control process comprises the following steps:
and (3) issuing a torque command: the main control computer sends a torque instruction to the 4-channel vehicle control unit through the CAN gateway, the vehicle control unit sends the received torque instruction to the motor controller through the CAN bus, and the motor controller acquires high-voltage direct current from the battery management system and converts the high-voltage direct current into three-phase alternating current to be transmitted to the wheel-side motor 1 to realize torque output;
and (3) reading back the state parameters of the motor: the motor controller acquires parameter data such as current motor rotating speed, temperature, torque value and the like through the sensor, transmits the parameter data to the vehicle control unit through the CAN bus, and the vehicle control unit feeds the parameter data back to the master control computer through the CAN gateway to realize motor state parameter readback.
Compared with the prior art, the utility model discloses simple structure, load bearing capacity are high, transmission loss is little, the transmission is steady, can effectively reduce environmental pollution, avoid frequently adjusting and maintaining.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.
Claims (10)
1. A power control system of an oversized multi-drive rail car is characterized by comprising a master control computer, a CAN gateway in communication connection with the master control computer, a whole car controller, a motor controller and a battery management system;
the CAN gateway is in communication connection with a vehicle control unit through a CAN bus, and the vehicle control unit is in communication connection with a plurality of groups of motor controllers and a battery management system through the CAN bus;
the motor controller is connected with a wheel edge motor and a sensor and used for driving the wheel edge motor to operate according to a command issued by the vehicle control unit and uploading sensor data to the vehicle control unit;
the battery management system is used for outputting direct current to the motor controller according to an instruction issued by the vehicle control unit.
2. The oversized-multiple-drive rail car power control system as recited in claim 1, wherein the general control computer is in communication connection with the CAN gateway through a TCP communication line.
3. The power control system of the oversized multi-wheel-drive rail car according to claim 1, wherein the CAN bus is in a linear topology structure, and the vehicle controller, the motor controller and the battery management system are connected to the CAN bus through a fulcrum.
4. The power control system of the oversized multi-wheel-drive railway vehicle as claimed in claim 1, wherein a group of vehicle controllers are in communication connection with a plurality of groups of motor controllers and a battery management system.
5. The power control system of an oversized multi-drive rail car according to claim 1, further comprising a plurality of sets of inverters and brake devices, wherein the battery management system is connected with the inverters through a direct current circuit, and the inverters are connected with the brake devices through a three-phase alternating current circuit to provide power input for the brake devices.
6. The power control system of the oversized multi-wheel-drive rail car according to claim 5, wherein the braking device is connected to the CAN bus through a fulcrum, and braking release are performed according to a command issued by the whole car controller.
7. The power control system of the oversized multi-wheel-drive railway vehicle as claimed in claim 6, wherein the braking device comprises an air compressor and a braking system, the air compressor can generate high-pressure air, and the braking system receives a command of the whole vehicle controller and inputs/stops the high-pressure air to a hub braking air chamber of the braking system to realize braking/brake releasing.
8. The oversized multi-drive rail car power control system of claim 1, wherein the battery management system has a battery pack, and the battery pack provides power output for the inverter and the motor controller in the form of direct current.
9. The power control system of the oversized multi-drive railway vehicle as claimed in claim 1, wherein the wheel-side motors are arranged on the tire bogie of the oversized multi-drive railway vehicle in a centrosymmetric manner in every 2 groups.
10. The oversized multi-drive rail car power control system as claimed in claim 1, wherein the sensors comprise a temperature sensor for acquiring temperature, a resolver sensor for acquiring the rotating speed of the wheel-side motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022914863.3U CN214084217U (en) | 2020-12-08 | 2020-12-08 | Super-large-size multi-drive rail car power control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022914863.3U CN214084217U (en) | 2020-12-08 | 2020-12-08 | Super-large-size multi-drive rail car power control system |
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| Publication Number | Publication Date |
|---|---|
| CN214084217U true CN214084217U (en) | 2021-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022914863.3U Active CN214084217U (en) | 2020-12-08 | 2020-12-08 | Super-large-size multi-drive rail car power control system |
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| CN (1) | CN214084217U (en) |
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