Whole vehicle energy control system and railway vehicle

Abstract

This invention relates to the field of vehicle technology, and provides a vehicle energy control system and a rail vehicle. The system comprises a carriage energy unit, a traction equipment energy unit, and an energy supply energy unit that respectively feed back first energy information, second energy information, and third energy information to a control unit. The control unit is used to control the carriage energy unit and the traction equipment energy unit to perform energy mutual circulation, and to control the traction equipment energy unit to perform energy self-circulation, based on the first and second energy information. The control unit is also used to control the carriage energy unit and the energy supply energy unit to perform energy mutual circulation, and to control the energy supply energy unit to perform energy self-circulation, based on the first and third energy information, thereby maximizing the vehicle's energy recycling and achieving the goal of energy conservation and consumption reduction.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and more particularly to a vehicle energy control system and a rail vehicle. Background Technology

[0002] The existing new energy rapid rail vehicles mainly have the following problems:

[0003] 1) Traction motors, traction converters, auxiliary converters and other equipment require cooling.

[0004] 2) The power battery needs to be kept at a certain temperature. When the temperature is low, it needs to be heated, and when the temperature is high, it needs to be cooled.

[0005] 3) To ensure passenger comfort, the passenger compartment needs to be heated in winter and cooled in summer.

[0006] This shows that the heat generated inside fast-moving vehicles has not been adequately addressed or utilized. Summary of the Invention

[0007] To address the aforementioned problems, this invention provides a vehicle energy control system and a rail vehicle.

[0008] This invention provides a vehicle energy control system, including a passenger compartment energy unit, a traction equipment energy unit, an energy supply energy unit, and a control unit. The passenger compartment energy unit, traction equipment energy unit, and energy supply energy unit respectively feed back first energy information, second energy information, and third energy information to the control unit, wherein:

[0009] The control unit is configured to control the car body energy unit and the traction equipment energy unit to perform energy mutual circulation based on the first energy information and the second energy information, and to control the traction equipment energy unit to perform energy self circulation; the control unit is also configured to control the car body energy unit and the energy supply energy unit to perform energy mutual circulation based on the first energy information and the third energy information, and to control the energy supply energy unit to perform energy self circulation.

[0010] According to the present invention, a vehicle energy control system is provided, the system further comprising an energy centralization interaction unit connected to the control unit; the control unit is configured to control the energy centralization interaction unit to perform energy exchange between the traction equipment energy unit and the energy supply energy unit based on the second energy information and the third energy information.

[0011] According to a vehicle energy control system provided by the present invention, the control unit is further configured to automatically collect fourth energy information. Accordingly, the control unit is configured to: control the vehicle compartment energy unit, the traction equipment energy unit, and the control unit to perform energy inter-circulation based on the first energy information, the second energy information, and the fourth energy information.

[0012] According to a vehicle energy control system provided by the present invention, the compartment energy unit includes a temperature control device inside the compartment, the traction equipment energy unit includes a traction device and a first coolant circulation device; the control unit includes a controller; the first energy information includes the temperature inside the compartment, and the second energy information includes the first heat generation temperature of the traction device and the first coolant temperature in the first coolant circulation device;

[0013] The temperature control device is used to send the temperature inside the carriage to the controller;

[0014] The traction device is used to send the first heat generation temperature to the controller;

[0015] The first coolant circulation device is used to send the first coolant temperature to the controller;

[0016] The controller is used to control the first coolant circulation device to perform a cooling operation on the traction equipment based on the temperature inside the carriage, the first heat generation temperature, and the first coolant temperature, and to control the first coolant circulation device to perform a heating operation inside the carriage.

[0017] According to the present invention, a vehicle energy control system is provided, wherein the energy supply unit includes an energy device and a second coolant circulation device, and the second energy information includes the second heat generation temperature of the energy device and the second coolant temperature in the second coolant circulation device;

[0018] The energy device is used to send the second heat generation temperature to the controller;

[0019] The second coolant circulation device is used to send the temperature of the second coolant to the controller;

[0020] The controller is used to control the temperature control device to perform a cooling operation on the energy equipment, control the second coolant circulation device to perform a heating operation on the interior of the vehicle, and control the second coolant circulation device to perform a cooling operation on the energy equipment, based on the interior temperature of the vehicle, the second heat generation temperature, and the second coolant temperature.

[0021] According to a vehicle energy control system provided by the present invention, the energy centralized interaction unit includes a refrigeration device, which is connected to the first coolant circulation device and the second coolant circulation device respectively.

[0022] The controller is configured to control the refrigeration equipment to perform a heat absorption operation on the second coolant and a condensation operation on the first coolant, based on the temperatures of the first and second coolants.

[0023] According to a vehicle energy control system provided by the present invention, the control unit further includes a first heat dissipation device, which is used to dissipate heat from at least one of the controller and the refrigeration equipment; the first heat dissipation device is connected to the first coolant circulation device.

[0024] According to a vehicle energy control system provided by the present invention, the control unit further includes a second heat dissipation device, which is used to perform a heat transfer operation on the first heat dissipation device.

[0025] According to a vehicle energy control system provided by the present invention, both the first coolant circulation device and the second coolant circulation device include a water tank and a water pump in the circulation path.

[0026] The present invention also provides a rail vehicle, the rail vehicle including the above-described vehicle energy control system.

[0027] The vehicle energy control system and rail vehicle provided by this invention analyze the energy information of each unit through the control unit and issue control commands to each unit so that each unit can complete mutual circulation or self-circulation, thereby maximizing the recycling of vehicle energy and achieving the purpose of energy saving and consumption reduction. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the vehicle energy control system provided by the present invention.

[0030] Figure label:

[0031] 11. Carriage energy unit; 12. Traction equipment energy unit; 13. Energy supply unit; 14. Control unit; 15. Energy centralization and interaction unit. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0033] The following is combined Figure 1 The present invention describes a vehicle energy control system and a rail vehicle.

[0034] Figure 1 A schematic diagram of the vehicle energy control system provided by the present invention is shown. See also: Figure 1 The vehicle energy control system includes a cargo compartment energy unit 11, a traction equipment energy unit 12, an energy supply energy unit 13, and a control unit 14. The cargo compartment energy unit, the traction equipment energy unit, and the energy supply energy unit respectively feed back first energy information, second energy information, and third energy information to the control unit, wherein:

[0035] The control unit is used to control the energy circulation between the car body energy unit and the traction equipment energy unit, and to control the energy circulation of the traction equipment energy unit, based on the first energy information and the second energy information.

[0036] The control unit is also used to control the energy exchange between the compartment energy unit and the energy supply energy unit based on the first energy information and the third energy information, and to control the energy supply energy unit to perform energy self-circulation.

[0037] In this regard, it's important to clarify that the rational allocation of energy in a vehicle can be reflected in its efficient utilization. Energy conversion occurs within a vehicle, primarily manifested in heat changes. The rational utilization of heat can reduce energy consumption. For example, directing heat generated by vehicle equipment into the passenger compartment, slightly raising the interior temperature, will reduce the amount of electricity consumed by the vehicle's equipment to generate heat. Therefore, it's necessary to cycle through the processes of heat generation and removal to achieve efficient heat utilization and energy conservation.

[0038] To this end, the system of the present invention is configured with a control unit, which can control the effective operation of the carriage energy unit, the traction equipment energy unit and the energy supply energy unit, and realize the heat circulation between and within each unit.

[0039] In the control process of this invention, the control unit requires data as a basis to achieve efficient and reasonable control of the start-up and shutdown of each unit. The start-up and shutdown of operations are also configured with corresponding execution parameters. For example, for coolant circulation for heat dissipation and cooling, these execution parameters could be running time, liquid flow rate, liquid pressure, etc.

[0040] The data here can be energy information from each unit. For vehicles, this mainly manifests in the utilization of heat; therefore, the energy information can include temperature, heat dissipation area, etc., but is not limited to these.

[0041] In this invention, the traction equipment energy unit is primarily used to drive the vehicle. During this driving process, heat is generated. The carriage energy unit is mainly used for heating or cooling the carriage, and also generates heat. The energy supply unit is used to supply energy to the vehicle; for example, in an electric vehicle, the required energy source is a power battery, which provides electricity to the traction equipment.

[0042] In this invention, an energy circulation path can be established between the vehicle's energy unit and the traction equipment energy unit, or between the vehicle's energy unit and the energy supply unit. Furthermore, the traction equipment energy unit and the energy supply unit can also perform self-circulation. This self-circulation can be understood as each unit establishing its own cooling path. For example, by using a coolant system to heat-dissipate the power battery, the heat generated during battery operation can be transferred away.

[0043] In response, the vehicle energy control system provided by this invention analyzes the energy information of each unit through the control unit and sends control commands to each unit so that each unit can complete mutual circulation or self-circulation, thereby maximizing the recycling of vehicle energy and achieving the goal of energy saving and consumption reduction.

[0044] In a further system described above, to better achieve energy circulation, such as rapid cooling or heating, the system also includes an energy centralization and interaction unit 15, which is connected to the control unit. This energy centralization and interaction unit is used to realize energy exchange between the traction equipment energy unit and the energy supply energy unit.

[0045] Therefore, the control unit is used to control the energy centralization interaction unit to perform energy exchange between the traction equipment energy unit and the energy supply energy unit based on the energy information of the traction equipment energy unit and the energy supply energy unit.

[0046] In a further part of the aforementioned system, the control unit also generates heat during operation. Therefore, the control unit needs to collect its own energy information. Then, based on the energy information from the control unit, the carriage energy unit, and the traction equipment energy unit, the control unit controls the carriage energy unit, the traction equipment energy unit, and the control unit to perform energy circulation.

[0047] For example, the cabin energy unit, while meeting its own needs, heats the control unit. Heat dissipated from the traction equipment energy unit is transferred to the cabin energy unit for heating. In the process of heating itself, the traction equipment energy unit also incidentally heats the control unit.

[0048] For further systems described above, please refer to [link / reference]. Figure 1 The car body energy unit includes temperature control equipment (such as intelligent air conditioning) inside the car body; the traction equipment energy unit includes traction equipment (such as traction motor) and a first coolant circulation device; the control unit includes a controller; the first energy information includes the temperature inside the car body; the second energy information includes the first heat generation temperature of the traction equipment and the first coolant temperature in the first coolant circulation device.

[0049] Temperature control equipment is used to send the temperature inside the carriage to the controller;

[0050] Traction equipment is used to send the initial heat generation temperature to the controller;

[0051] The first coolant circulation device is used to send the temperature of the first coolant to the controller;

[0052] The controller is used to control the first coolant circulation equipment to perform a cooling operation on the traction equipment and to control the first coolant circulation equipment to perform a heating operation on the interior of the car based on the temperature inside the car, the first heat generation temperature and the first coolant temperature.

[0053] For example, once the first heat generation temperature reaches the first value, it indicates that the traction equipment is still generating relatively little heat. At this time, the controller controls the first coolant system to perform a cooling operation on the traction equipment. When the first heat generation temperature reaches the second value and the first coolant temperature reaches the third value, it indicates that the traction equipment is generating and accumulating a large amount of heat, and the first coolant system cannot dissipate the heat from the traction equipment in time. At this time, the controller controls the first coolant circulation system to perform a heating operation on the interior of the carriage.

[0054] For further systems described above, please refer to [link / reference]. Figure 1 The energy supply unit includes energy equipment (such as a power battery) and a second coolant circulation device. The second energy information includes the second heat generation temperature of the energy equipment and the second coolant temperature in the second coolant circulation device.

[0055] Energy equipment used to send the second heat generation temperature to the controller;

[0056] The second coolant circulation device is used to send the temperature of the second coolant to the controller;

[0057] The controller is used to control the temperature control equipment to perform a cooling operation on the energy equipment, control the second coolant circulation equipment to perform a heating operation on the interior of the vehicle, and control the second coolant circulation equipment to perform a cooling operation on the energy equipment, based on the temperature inside the vehicle, the second heat generation temperature, and the second coolant temperature.

[0058] For example, once the second heat generation temperature reaches the fourth value, it indicates that the energy equipment is still generating relatively little heat. At this point, the controller controls the second coolant system to perform a cooling operation on the energy equipment. When the second heat generation temperature reaches the fifth value, it indicates that the heat generated by the energy equipment has reached the preset level, at which point the cooling effect of the second coolant system alone is insufficient. At this point, the controller controls the temperature control equipment to perform a cooling operation on the energy equipment (e.g., introducing exhaust gas from the temperature control process into the energy equipment).

[0059] In winter, when the second heat generation temperature reaches the sixth value and the second coolant temperature reaches the seventh value, it indicates that the energy equipment is generating and accumulating more heat, and the second coolant equipment cannot dissipate heat from the energy equipment in time. At this time, the second coolant circulation equipment should be controlled to heat up the interior of the vehicle.

[0060] For further systems described above, please refer to [link / reference]. Figure 1 The energy concentration and interaction unit includes a refrigeration device, which is connected to a first coolant circulation device and a second coolant circulation device respectively.

[0061] The controller is used to control the refrigeration equipment to perform heat absorption on the second coolant and condensation on the first coolant, based on the first coolant temperature and the second coolant temperature.

[0062] Since the primary purpose of the first and second coolant circulation devices is to achieve better heat removal, an energy-concentrating interaction unit is configured to centrally eliminate the heat from the two units, thereby quickly removing the heat from the coolant and enabling the coolant to rapidly carry away the heat generated by the equipment as it flows through the traction and energy equipment.

[0063] For further systems described above, please refer to [link / reference]. Figure 1 The control unit also includes a first heat dissipation device (such as a cooling fan), which is used to dissipate heat from at least one of the controller and the refrigeration equipment; the first heat dissipation device is connected to a first coolant circulation device.

[0064] It should be noted that when a vehicle is equipped with heat dissipation devices of different units, these devices will generate heat when they are in operation. If these heat-generating devices are concentrated in one space, cooling fans are required to ensure the heat dissipation of each device.

[0065] If the heat dissipated by the heat dissipation device can be blown onto the coolant circulation equipment (such as the coolant pipes on the coolant circulation equipment that are coiled around the heat dissipation device), the coolant will also carry away some of the heat.

[0066] The control unit also includes a second heat dissipation device (such as an exhaust fan), which is used to transfer heat from the first heat dissipation device. When the heat from the first heat dissipation device is high, the second heat dissipation device can introduce air from the external environment to carry away the heat dissipated by the first heat dissipation device.

[0067] For further systems described above, please refer to [link / reference]. Figure 1 Both the first and second coolant circulation devices include water tanks and water pumps within the circulation path. The circulation path is a pipeline that can be coiled around the surface of the equipment to remove heat.

[0068] In a further part of the aforementioned system, during winter, the main energy source for new energy vehicles is the power battery, which is prone to reduced utilization at low temperatures. Therefore, when the energy source fails to generate sufficient heat for high utilization, an electric heater can be used to heat the coolant initially to maintain the battery in a suitable temperature environment.

[0069] In a further system of the above system, the energy-concentrated interaction unit can be a condenser, compressor, refrigerant and expansion valve forming a loop.

[0070] The present invention also provides a rail vehicle, which includes the above-described vehicle energy control system.

Claims

1. A vehicle energy control system, characterized in that, The system includes a carriage energy unit, a traction equipment energy unit, an energy supply energy unit, and a control unit. The carriage energy unit, traction equipment energy unit, and energy supply energy unit respectively feed back first energy information, second energy information, and third energy information to the control unit, wherein: The control unit is configured to control the energy exchange between the carriage energy unit and the traction equipment energy unit based on the first energy information and the second energy information, and to control the traction equipment energy unit to perform energy self-circulation. The control unit is further configured to control the vehicle compartment energy unit and the energy supply energy unit to perform energy mutual circulation based on the first energy information and the third energy information, and to control the energy supply energy unit to perform energy self circulation. The carriage energy unit includes a temperature control device inside the carriage; the traction equipment energy unit includes a traction device and a first coolant circulation device; the control unit includes a controller; the first energy information includes the temperature inside the carriage; the second energy information includes the first heat generation temperature of the traction device and the first coolant temperature in the first coolant circulation device. The temperature control device is used to send the temperature inside the carriage to the controller; The traction device is used to send the first heat generation temperature to the controller; The first coolant circulation device is used to send the first coolant temperature to the controller; The controller is used to control the first coolant circulation device to perform a cooling operation on the traction equipment based on the temperature inside the carriage, the first heat generation temperature, and the first coolant temperature, and to control the first coolant circulation device to perform a heating operation inside the carriage.

2. The vehicle energy control system according to claim 1, characterized in that, The system further includes an energy centralization interaction unit, which is connected to the control unit; the control unit is used to control the energy centralization interaction unit to perform energy exchange between the traction equipment energy unit and the energy supply energy unit according to the second energy information and the third energy information.

3. The vehicle energy control system according to claim 2, characterized in that, The control unit is also used to automatically collect fourth energy information. Accordingly, the control unit is used to control the car energy unit, the traction equipment energy unit and the control unit to perform energy inter-circulation based on the first energy information, the second energy information and the fourth energy information.

4. The vehicle energy control system according to claim 3, characterized in that, The energy supply unit includes an energy device and a second coolant circulation device, and the second energy information includes the second heat generation temperature of the energy device and the second coolant temperature in the second coolant circulation device. The energy device is used to send the second heat generation temperature to the controller; The second coolant circulation device is used to send the temperature of the second coolant to the controller; The controller is used to control the temperature control device to perform a cooling operation on the energy equipment, control the second coolant circulation device to perform a heating operation on the interior of the vehicle, and control the second coolant circulation device to perform a cooling operation on the energy equipment, based on the interior temperature of the vehicle, the second heat generation temperature, and the second coolant temperature.

5. The vehicle energy control system according to claim 4, characterized in that, The energy concentration and interaction unit includes a refrigeration device, which is connected to the first coolant circulation device and the second coolant circulation device respectively. The controller is configured to control the refrigeration equipment to perform heat absorption on the second coolant and condensation on the first coolant based on the first coolant temperature and the second coolant temperature.

6. The vehicle energy control system according to claim 5, characterized in that, The control unit further includes a first heat dissipation device, which is used to dissipate heat from at least one of the controller and the refrigeration equipment; the first heat dissipation device is connected to the first coolant circulation device.

7. The vehicle energy control system according to claim 6, characterized in that, The control unit further includes a second heat dissipation device for transferring heat from the first heat dissipation device.

8. The vehicle energy control system according to claim 7, characterized in that, Both the first coolant circulation device and the second coolant circulation device include a water tank and a water pump in the circulation path.

9. A rail vehicle, characterized in that, The rail vehicle includes the vehicle energy control system described in any one of claims 1-8.

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