WO2020020327A1 - Railway vehicle, and charging system and charging control device and method therefor - Google Patents
Railway vehicle, and charging system and charging control device and method therefor Download PDFInfo
- Publication number
- WO2020020327A1 WO2020020327A1 PCT/CN2019/097833 CN2019097833W WO2020020327A1 WO 2020020327 A1 WO2020020327 A1 WO 2020020327A1 CN 2019097833 W CN2019097833 W CN 2019097833W WO 2020020327 A1 WO2020020327 A1 WO 2020020327A1
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- Prior art keywords
- charging
- rail vehicle
- switch
- pole
- charging device
- Prior art date
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0034—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using reverse polarity correcting or protecting circuits
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
Definitions
- the present application relates to the technical field of rail vehicles, and in particular, to a rail vehicle charging control device, a rail vehicle, a rail vehicle charging system, and a rail vehicle charging control method.
- the rail vehicle When a rail vehicle is traveling on a moving track, if it needs to charge its power battery, the rail vehicle needs to travel to a charging station to charge the power battery.
- the direction in which rail vehicles reach the charging station is not fixed. For example, for a east-west charging station, when the rail vehicle arrives at the charging station, the driving direction may be from west to east or east to west.
- the positive and negative charges may be reversed, which may cause damage to the power battery and affect the safety of the vehicle.
- a first object of the present application is to provide a charging control device for a rail vehicle, so as to avoid the phenomenon of incorrect charging when the rail vehicle is traveling in different directions, and improve the reliability of the charging of the rail vehicle.
- the second object of the present application is to propose a rail vehicle.
- a third object of the present application is to propose a charging system for rail vehicles.
- a fourth object of the present application is to propose a charging control method for rail vehicles.
- an embodiment of the first aspect of the present application proposes a rail vehicle, including: a current taking device, the current taking device is disposed on the rail vehicle, and is configured to connect when the rail vehicle is docked at a charging station
- the charging device provided in the charging station, wherein when the traveling direction of the rail vehicle is different, the connection relationship between the current taking device and the charging device is different; a switching circuit, one end of the switching circuit is connected to the charging device;
- the power battery of the rail vehicle is connected, and the other end of the switch circuit is connected to the current-taking device.
- the switch circuit includes a first switch component and a second switch component; a controller, and the controller is respectively connected to the first switch component.
- a switch component is connected to the second switch component, and the controller is configured to determine a connection relationship between the current taking device and the charging device, and control the first switch component to close or control the first switch component according to the connection relationship.
- the two switch assemblies are closed so that the polarity of the power battery is consistent with the polarity of the charging device.
- the charging control device for a rail vehicle when the rail vehicle is charged by the charging device of the charging station, the polarity and power of the charging port of the charging device can be changed without changing the structure of the current taking device and / or the charging device
- the positive and negative polarities of the battery are kept the same, which avoids the phenomenon of incorrect charging when the rail vehicle is traveling in different directions, and improves the reliability of the rail vehicle charging.
- an embodiment of the second aspect of the present application proposes a rail vehicle, including: a power battery for supplying power to a vehicle electrical system; the charging control device for the rail vehicle of the above embodiment, the charging control device When the current taking device is connected to a charging device provided at a charging station, the polarity of the power battery is consistent with the polarity of the charging device.
- the charging control device of the rail vehicle of the above embodiment is adopted.
- the structure of the current taking device and / or the charging device can be changed without changing the structure of the charging device.
- the polarity of the charging port is consistent with the positive and negative polarities of the power battery, which avoids the phenomenon of incorrect charging when the rail vehicle is traveling in different directions, and improves the reliability of rail vehicle charging.
- an embodiment of the third aspect of the present application proposes a rail vehicle charging system, including: the rail vehicle of the above embodiment; a charging device, the charging device is disposed at a charging station, and the charging device is used for charging The rail vehicle is charged.
- the polarity and power of the charging port of the charging device can be changed without changing the structure of the current taking device and / or the charging device.
- the positive and negative polarities of the battery are kept the same, which avoids the phenomenon of incorrect charging when the rail vehicle is traveling in different directions, and improves the reliability of the rail vehicle charging.
- an embodiment of the fourth aspect of the present application proposes a charging control method for a rail vehicle.
- the rail vehicle is a rail vehicle according to the embodiment of the second aspect.
- the charging control method includes the following steps: When the rail vehicle is parked at When the charging station is connected, determine the connection relationship between the current taking device and the charging device provided at the charging station; and according to the connection relationship between the current taking device and the charging device, control the first switch assembly to close or control the The second switch assembly is closed so that the polarity of the power battery is consistent with the polarity of the charging device.
- the polarity of the charging port of the charging device can be changed without changing the structure of the current taking device and / or the charging device.
- the positive and negative polarities of the power battery remain the same, which avoids the phenomenon of incorrect charging when the rail vehicle is traveling in different directions, and improves the reliability of the rail vehicle charging.
- FIG. 1 is a schematic block diagram of a charging control device for a rail vehicle according to an embodiment of the present application
- FIG. 2 is a schematic diagram of a connection relationship between a current taking device and a charging device according to an example of the present application
- FIG. 3 is a schematic diagram of a connection relationship between a current taking device and a charging device according to another example of the present application.
- FIG. 4 is a schematic structural diagram of a charging control device for a rail vehicle according to an embodiment of the present application.
- FIG. 5 is a schematic structural diagram of a charging control device for a rail vehicle according to another embodiment of the present application.
- FIG. 6 is a working flowchart of a charging control device for a rail vehicle according to an embodiment of the present application
- FIG. 7 is a schematic block diagram of a rail vehicle according to an embodiment of the present application.
- FIG. 8 is a block diagram of a charging system for a rail vehicle according to an embodiment of the present application.
- FIG. 9 is a flowchart of a charging control method for a rail vehicle according to an embodiment of the present application.
- FIG. 1 is a schematic block diagram of a charging control device for a rail vehicle according to an embodiment of the present application.
- the charging control device 100 of the rail vehicle includes a current taking device 10, a switch circuit 20, and a controller 30.
- the current taking device 10 is provided on the rail vehicle, and is used to connect the charging device provided at the charging station when the rail vehicle is docked at the charging station.
- the running direction of the rail vehicle is different, and the current taking device 10 is different from the charging device.
- the connection relationship is different.
- the switch circuit 20 is disposed on the rail vehicle. One end of the switch circuit 20 is connected to the power battery of the rail vehicle. The other end of the switch circuit 20 is connected to the current-taking device 10.
- the switch circuit 20 includes a first switch assembly 21 and a second switch assembly 22. .
- the controller 30 is connected to the first switch assembly 21 and the second switch assembly 22, respectively.
- the charging station may be provided at the stop of the rail vehicle, and the charging device of the charging station may be fixedly installed.
- the controller 30 is configured to determine the connection relationship between the current taking device 10 and the charging device, and control the first switch component 21 to be closed or the second switch component 22 to be closed according to the connection relationship, so as to make the polarity of the power battery Consistent with the polarity of the charging device.
- the first pole of the power battery is connected to the first pole of the charging device
- the second pole of the power battery is connected to the second pole of the charging device, wherein the first pole of the power battery is connected to the first pole of the charging device. If the polarity is the same, the second pole of the power battery has the same polarity as the second pole of the charging device.
- both the first current collector 11 and the second current collector 12 may be charging blades, and the charging device may include a charging slot.
- the charging blades When the rail vehicle is parked at a charging station, the charging blades can be plugged in. In the charging tank, the connection with the charging device is realized.
- the polarity of the charging port of the charging device and the positive and negative polarities of the power battery can be maintained without changing the structure of the current taking device and / or the charging device, thereby avoiding the rail vehicle.
- the phenomenon of incorrect charging occurs, which improves the reliability of rail vehicle charging.
- the current taking device 10 includes a first current taker 11 and a second current taker 12.
- the controller 30 controls the first switch assembly 21 to close so that the power
- the first pole of the battery is connected to the first current collector 11 and the second pole of the power battery is connected to the second current collector 12, wherein the first pole of the power battery has the same polarity as the first pole of the charging device, and the power battery
- the second pole of has the same polarity as the second pole of the charging device.
- the controller 30 controls the second switch assembly 22 to close to enable the power
- the first pole of the battery is connected to the second current collector 12, and the second pole of the power battery is connected to the first current collector 11, wherein the first pole of the power battery has the same polarity as the first pole of the charging device, and the power battery
- the second pole of has the same polarity as the second pole of the charging device.
- the controller 30 may obtain the driving direction of the rail vehicle, and determine the first time when the rail vehicle stops at the charging station in the first direction.
- the current collector 11 is connected to the first pole of the charging device, and the second current collector 12 is connected to the second pole of the charging device; and when the rail vehicle 100 is parked at the charging station in the second direction, the first current collector 11 is determined It is connected to the second pole of the charging device, and the second current collector 12 is connected to the first pole of the charging device, wherein the second direction and the first direction are opposite to each other.
- the first current collector 11 is connected to the positive electrode of the charging device
- the second current collector 12 is connected to the negative electrode of the charging device.
- the controller 30 can control the first switch assembly 21 to be closed, so that the positive electrode of the power battery is connected to the first current collector 11 and the negative electrode of the power battery is connected to the second current collector 12, so that the positive electrode of the power battery is connected to the positive electrode of the charging device.
- the negative electrode of the power battery is connected to the charging device, which ensures the accuracy of the charging connection.
- the controller 30 may The second switch assembly 22 is controlled to be closed so that the positive electrode of the power battery is connected to the second current collector 12 and the negative electrode of the power battery is connected to the first current collector 11 so that the positive electrode of the power battery is connected to the positive electrode of the charging device and the negative electrode of the power battery is connected to The charging device is connected to ensure the accuracy of the charging connection.
- the first switch assembly 21 includes a first switch KM1 and a second switch KM2.
- One end of the first switch KM1 is connected to the first pole of the power battery, and the other end of the first switch KM1 is connected to the first current collector 11 and forms a first node a, that is, port 1 and the first node shown in FIG. 4.
- a current collector 11 is connected; one end of the second switch KM2 is connected to the second pole of the power battery, and the other end of the second switch KM2 is connected to the second current collector 12 and forms a second node b, as shown in FIG. 4
- the port 2 is connected to the second current collector 12.
- the controller 30 is used to control the closing and opening of the first switch KM1 and the second switch KM2.
- the second switch assembly 22 includes a third switch KM3 and a fourth switch KM4.
- One end of the third switch KM3 is connected to the first node a, and the other end of the third switch KM3 is connected to the second pole of the power battery; one end of the fourth switch KM4 is connected to the first pole of the power battery, and the fourth switch KM4 is The other end is connected to the second node b.
- the controller 30 is used to control the closing and opening of the third switch KM3 and the fourth switch KM4.
- the first switch KM1, the second switch KM2, the third switch KM3, and the fourth switch KM4 can all adopt contactors.
- the first switch assembly 21 and the second switch assembly 22 include a first single-pole double-throw switch SW1 and a second single-pole double-throw switch SW2.
- the fixed end of the first single-pole double-throw switch SW1 is connected to the first current collector 11
- the first moving end of the first single-pole double-throw switch SW1 is connected to the first pole of the power battery
- the second moving end of the switch SW1 is connected to the second pole of the power battery
- the fixed end of the second single-pole double-throw switch SW2 is connected to the second current collector 12
- the first moving end of the second single-pole double-throw switch SW2 is connected to the power.
- the first pole of the battery is connected
- the second moving end of the second single-pole double-throw switch SW2 is connected to the second pole of the power battery.
- the controller 40 is respectively used to control the connection between the fixed end of the first single-pole double-throw switch SW1 and the second single-pole double-throw switch SW2 and the first and second moving ends.
- the first switch assembly 11 includes a fixed end and a first moving end of the first single pole double throw switch SW1, and a fixed end and a second moving end of the second single pole double throw switch SW2;
- the second switch assembly 22 includes a fixed end and a second moving end of the first single-pole double-throw switch SW1, and a fixed end and a first moving end of the second single-pole double-throw switch SW2.
- the fixed end of the first single-pole double-throw switch SW1 can also be connected to the first pole of the power battery, the first moving end of the first single-pole double-throw switch SW1 is connected to the first current collector 21, and the first single-pole The second moving end of the double throw switch SW1 is connected to the second current collector 22.
- the fixed end of the second SPDT switch SW2 is connected to the second pole of the power battery, the first moving end of the second SPDT switch SW2 is connected to the first current collector 21, and the second SPDT switch SW2 The second moving end is connected to the second current collector 22.
- the first switch assembly 21 includes a fixed end and a first moving end of the first single pole double throw switch SW1, and a fixed end and a second moving end of the second single pole double throw switch SW2;
- the second switch The assembly 22 includes a fixed end and a second moving end of the first single-pole double-throw switch SW1, and a fixed end and a first moving end of the second single-pole double-throw switch SW2.
- the charging control device 100 for a rail vehicle further includes a voltage detector 40.
- the voltage detector 40 may be provided on a rail vehicle. One end of the voltage detector 40 is connected to the first node a, and the other end of the voltage detector 40 is connected to the second node b.
- the voltage detector 40 is used to charge the rail vehicle when it is parked.
- the controller 30 detects the polarity of the output voltage on the DC side of the charging device.
- the charging device is used to provide the DC vehicle with the DC power required for charging, and the DC side of the charging device is the side that is connected to the current taking device 10 and can output DC power.
- a contactor may be connected between the charging slot of the charging device and the charger, and the contactor is a normally open contactor.
- the controller 30 may send the driving direction signal abnormal information to the charging device so that The charging device engages the contactor.
- the controller 30 is further configured to obtain the polarity of the output voltage on the DC side of the charging device, and determine that the first current collector 11 is connected to the first pole of the charging device when the output voltage polarity is the first polarity.
- the two current collectors 12 are connected to the second pole of the charging device, and when the polarity of the output voltage is the second polarity, it is determined that the first current collector 11 is connected to the second pole of the charging device, and the second current collector 12 Connected to the first pole of the charging device.
- the voltage detector 40 may employ a voltage Hall sensor.
- the voltage detector 40 further acquires the voltage polarity of the power battery
- the controller 30 is further configured to perform a voltage switch on the first switch according to the voltage polarity of the power battery.
- the component 21 or the second switch component 22 controls to provide a double guarantee for the accurate connection of the power battery and the charging device.
- the controller 30 controls the first switch assembly 21 to be closed according to the driving direction
- the controller 30 receives the voltage polarity of the power battery obtained by the voltage detector 40, and the voltage polarity of the power battery and the driving If the directions are inconsistent, the controller 30 controls the first switch assembly 21 to open, and the charging ends.
- the controller 30 controls the second switch assembly 22 to close according to the driving direction
- the controller 30 receives the power battery obtained by the voltage detector 40. If the voltage polarity is inconsistent with the driving direction, the controller 30 controls the second switch assembly 22 to be turned off, and the charging ends.
- the controller 30 may send a charging permission instruction to the charging device, so that the charging device engages the contactor and starts charging.
- the charging device may open the contactor between the charging tank and the charger.
- the voltage polarity of the power battery obtained by the voltage detector 40 is inconsistent with the output voltage polarity of the DC side of the charging device, the controller 30 controls the first switch assembly 21 to be turned off, and the charging is completed.
- the charging device may open the contactor between the charging tank and the charger, if the controller 30 receives the voltage The voltage polarity of the power battery obtained by the detector 40 is inconsistent with the output voltage polarity of the DC side of the charging device, the controller 30 controls the second switch assembly 22 to be turned off, and the charging ends.
- a fuse may be further connected between the switching circuit 20 and the current taking device 10 to protect the charging control device 100.
- the driving direction signal is specified as 01.
- the first current collector 11 is connected to the positive electrode of the charging device of the charging station, and the second current is taken.
- the charger 12 is connected to the negative electrode of the charging device.
- the driving direction signal is specified as 02.
- the second current collector 12 is connected to the positive electrode of the charging device of the charging station, and the first current is taken.
- the charger 11 is connected to the negative electrode of the charging device.
- the positive and negative poles of the charging device of the charging station do not change when charging at the charging station, but they flow to the first and second current collectors 11 and 2 of the rail vehicle.
- the current polarity of 12 has changed, so in order to ensure that the polarity of the charging device is consistent with the positive and negative polarity of the power battery, it is necessary to perform commutation on the rail vehicle.
- the controller 30 controls the first switch KM1 and the second switch KM2 to be closed, and the positive voltage is collected by the voltage detector 40.
- the DC-side power supply end of the charging device has the same polarity as the power battery and can be charged.
- the controller 30 controls the third switch KM3 and the fourth switch KM4 to be closed, the voltage collected by the voltage detector 40 is 0, the DC-side power supply terminal of the charging device and the power battery The polarity is consistent and can be charged.
- the CCU Central Control Unit
- the controller 30 controls the first switch KM1 and the second switch KM2 to be closed.
- the voltage signal collected by the voltage detector 40 is the current voltage of the power battery.
- the controller 30 may send a charging permission instruction to the charging device so that the DC output-side contactor of the charging device attracts and the output voltage is charged; if the voltage collected by the voltage detector 40 is 0, it means that the polarity of the power battery and the polarity of the charging device are inconsistent.
- the controller 30 controls the first switch KM1 and the second switch KM2 to be turned off.
- a charging prohibition instruction can also be sent to the charging device to prohibit charging.
- the controller 30 controls the third switch KM3 and the fourth switch KM4 to be closed.
- the voltage signal collected by the voltage detector 40 is the current voltage of the power battery. If the voltage collected by the voltage detector 40 is 0, the controller 30 may send a charging permission instruction to the charging device, so that the DC output-side contactor of the charging device attracts and the output voltage is charged; if the voltage detector 40 collects a positive voltage, The voltage indicates that the polarity of the power battery is different from the polarity of the charging device.
- the controller 30 controls the third switch KM3 and the fourth switch KM4 to be turned off. Of course, it is also possible to send a charging prohibition instruction to the charging device to prohibit charging.
- the controller 30 When the rail vehicle is parked at the charging station and the driving direction signal is not sent when the CCU fails, for example, when the controller 30 does not receive the driving direction signal within a preset time (such as 3s), the controller 30 does not temporarily switch the first switch assembly 21 Controlled with the second switch assembly 22, the contactor on the DC side of the charging device pulls in and outputs first, and the voltage detector 40 collects the voltage signal (that is, the output voltage polarity of the DC side of the charging device), and if it is positive, the controller 30 controls the first switch KM1 and the second switch KM2 to be closed. If negative, the controller 30 controls the third switch KM3 and the fourth switch KM4 to be closed. Of course, after the first switch KM11 and the second switch KM2, or the third switch KM3 and the fourth switch KM4 are closed, the voltage detector 40 also detects the voltage polarity of the power battery for double judgment.
- a preset time such as 3s
- the controller 30 controls the fixed end of the first SPDT switch SW1 to be connected to the first moving end.
- the fixed ends of the two single-pole double-throw switches SW2 are connected to the second moving end.
- the positive voltage is collected by the voltage detector 40.
- the DC-side power supply terminal of the charging device has the same polarity as the power battery and can be charged.
- the controller 30 controls the fixed end of the first SPDT switch SW1 to be connected to the second moving end, and the fixed end of the second SPDT switch SW2 to the first The moving end is connected.
- the voltage collected by the voltage detector 40 is 0.
- the DC-side power supply end of the charging device has the same polarity as the power battery and can be charged.
- the CCU Central Control Unit
- the controller 30 controls the fixed end of the first SPDT switch SW1 to be connected to the first moving end, and the fixed end of the second SPDT switch SW2 to the second moving Terminal, the voltage signal collected by the voltage detector 40 at this time is the current voltage of the power battery.
- the controller 30 may send a charging permission instruction to the charging device so that the DC output side contactor of the charging device attracts and the output voltage is charged; if the voltage detected by the voltage detector 40 is 0 , It means that the polarity of the power battery is not the same as the polarity of the charging device, the controller 30 controls the connection between the fixed end of the first single-pole double-throw switch SW1 and the first moving end to be disconnected, and the The connection between the moving end and the second moving end is disconnected.
- a charging prohibition instruction can also be sent to the charging device to prohibit charging.
- the controller 30 controls the fixed end of the first SPDT switch SW1 to be connected to the second moving end, and the fixed end of the second SPDT switch SW2 to the first moving Terminal, the voltage signal collected by the voltage detector 40 at this time is the current voltage of the power battery. If the voltage detector 40 collects a voltage of 0, the controller 30 may send a charging permission instruction to the charging device, so that the DC output-side contactor of the charging device engages and the output voltage is charged; if the voltage detector 40 collects a positive voltage, It means that the polarity of the power battery is not the same as the polarity of the charging device.
- the controller 30 controls the connection between the fixed end of the first single-pole double-throw switch SW1 and the second moving end to be disconnected, and the second single-pole double-throw switch SW2 does not move.
- the connection between the mobile terminal and the first mobile terminal is disconnected.
- a charging prohibition instruction may also be sent to the charging device to prohibit charging.
- the controller 30 does not temporarily switch the first switch assembly 21 Controlled with the second switch assembly 22, the contactor on the DC side of the charging device pulls in and outputs first, and the voltage detector 40 collects the voltage signal (that is, the output voltage polarity of the DC side of the charging device), and if it is positive, the controller 30 controls the fixed end of the first single-pole double-throw switch SW1 to be connected to the first moving end, and the fixed end of the second single-pole double-throw switch SW2 to be connected to the second moving end; if negative, the controller 30 controls the first single-pole The fixed end of the double throw switch SW1 is connected to the second moving end, and the fixed end of the second single pole double throw switch SW2 is connected to the first moving end.
- a preset time such as 3s
- the charging port of the charging device can be changed without changing the structure of the current taking device and / or the charging device.
- the polarity is consistent with the positive and negative polarity of the power battery, which avoids the phenomenon of incorrect charging when the rail vehicle is traveling in different directions, and improves the reliability of the rail vehicle charging.
- FIG. 7 is a schematic block diagram of a rail vehicle according to an embodiment of the present application.
- the rail vehicle 1000 includes a power battery 200 and the charging control device 100 for a rail vehicle of the above embodiment.
- the power battery 200 is used to supply power to the vehicle electrical system.
- the charging control device 100 is configured to make the polarity of the power battery consistent with the polarity of the charging device when the current extraction device 10 is connected to a charging device provided at a charging station.
- the first pole of the power battery 200 is connected to the first pole of the charging device
- the second pole of the power battery 200 is connected to the second pole of the charging device, wherein the first pole of the power battery 200 is connected to the first pole of the charging device.
- One pole has the same polarity
- the second pole of the power battery 200 has the same polarity as the second pole of the charging device.
- the entire vehicle power system may include, but is not limited to, a traction control system, an auxiliary power system, a battery cooling system, an air conditioning system, and the like.
- the charging control device of the rail vehicle of the above embodiment is adopted.
- the structure of the current taking device and / or the charging device can be changed without changing the structure of the charging device.
- the polarity of the charging port is consistent with the positive and negative polarities of the power battery, which avoids the phenomenon of incorrect charging when the rail vehicle is traveling in different directions, and improves the reliability of rail vehicle charging.
- FIG. 8 is a schematic block diagram of a charging system for a rail vehicle according to an embodiment of the present application.
- the charging system 3000 for a rail vehicle includes a charging device 2000 and a rail vehicle 1000 in the foregoing embodiment of the present application.
- the charging device 2000 is disposed at a charging station, and the charging device 2000 is used to charge the rail vehicle 1000.
- the polarity and power of the charging port of the charging device can be changed without changing the structure of the current taking device and / or the charging device.
- the positive and negative polarities of the battery are kept the same, which avoids the phenomenon of incorrect charging when the rail vehicle is traveling in different directions, and improves the reliability of the rail vehicle charging.
- FIG. 9 is a flowchart of a charging control method for a rail vehicle according to an embodiment of the present application.
- the charging control method for a rail vehicle is used for a charging control device.
- the charging control device includes a current taking device and a switching circuit.
- the current taking device is disposed on the rail vehicle, and one end of the switching circuit is connected to the power battery of the rail vehicle.
- the other end of the switch circuit is connected to the current-taking device.
- the switch circuit includes a first switch component and a second switch component.
- the charging control method of the rail vehicle includes the following steps:
- S101 Determine the connection relationship between the current taking device and the charging device when the rail vehicle is docked at the charging station.
- the charging device is disposed at the charging station.
- the first switch assembly is controlled to close so that the first pole of the power battery is connected to the first pole A current collector is connected, and the second pole of the power battery is connected to the second current collector. If the first current collector is connected to the second pole of the charging device, and the second current collector is connected to the first pole of the charging device, the second switch assembly is controlled to close so that the first pole of the power battery and the second current collector The second pole of the power battery is connected to the first current collector.
- the first pole of the power battery has the same polarity as the first pole of the charging device
- the second pole of the power battery has the same polarity as the second pole of the charging device
- the driving direction of the rail vehicle may also be obtained, and the connection relationship between the current taking device and the charging device may be determined according to the driving direction of the rail vehicle.
- the output voltage polarity of the DC side of the charging device is also obtained, and The connection relationship between the current taking device and the charging device is determined.
- the voltage polarity of the power battery is further obtained, and the first switch component or the first switch component is obtained according to the voltage polarity of the power battery.
- Two switch components are used for control.
- the charging control method for a rail vehicle when the rail vehicle is charged by the charging device of the charging station, the polarity of the charging port of the charging device and The positive and negative polarities of the power battery remain the same, which avoids the phenomenon of incorrect charging when the rail vehicle is traveling in different directions, and improves the reliability of the rail vehicle charging.
- first and second are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as “first” and “second” may explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality" is at least two, for example, two, three, etc., unless it is specifically and specifically defined otherwise.
- the terms “installation,” “connected,” “connected,” and “fixed” should be broadly understood unless otherwise specified and limited. For example, they can be fixed connections or removable connections. , Or integrated; it can be mechanical or electrical; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of the two elements or the interaction between the two elements, unless otherwise specified The limit.
- the specific meanings of the above terms in this application can be understood according to specific situations.
- the first feature "on” or “down” of the second feature may be the first and second features in direct contact, or the first and second features indirectly through an intermediate medium. contact.
- the first feature is “above”, “above”, and “above” the second feature.
- the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher in level than the second feature.
- the first feature is “below”, “below”, and “below” of the second feature.
- the first feature may be directly below or obliquely below the second feature, or it may simply indicate that the first feature is less horizontal than the second feature.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Description
Claims (14)
- 一种轨道车辆的充电控制装置,其特征在于,包括:A charging control device for a rail vehicle, comprising:取流装置,所述取流装置设置在轨道车辆上,用于在所述轨道车辆停靠在充电站时,连接设置在所述充电站的充电装置,其中,当所述轨道车辆的行车方向不同时,所述取流装置与所述充电装置的连接关系不同;A current taking device provided on a rail vehicle for connecting the charging device provided at the charging station when the rail vehicle is docked at a charging station, wherein when the traveling direction of the rail vehicle is not At the same time, the connection relationship between the current taking device and the charging device is different;开关电路,所述开关电路的一端与所述轨道车辆的动力电池相连,所述开关电路的另一端与所述取流装置相连,所述开关电路包括第一开关组件和第二开关组件;A switch circuit, one end of the switch circuit is connected to the power battery of the rail vehicle, the other end of the switch circuit is connected to the current taking device, and the switch circuit includes a first switch component and a second switch component;控制器,所述控制器分别与所述第一开关组件和所述第二开关组件相连,所述控制器用于确定所述取流装置与所述充电装置的连接关系,并根据所述连接关系控制所述第一开关组件闭合或者控制所述第二开关组件闭合,以使所述动力电池的极性与所述充电装置的极性一致。A controller, which is respectively connected to the first switching component and the second switching component, and the controller is configured to determine a connection relationship between the current taking device and the charging device, and according to the connection relationship Controlling the first switching component to be closed or controlling the second switching component to be closed, so that the polarity of the power battery is consistent with the polarity of the charging device.
- 如权利要求1所述的轨道车辆的充电控制装置,其特征在于,所述取流装置包括第一取流器和第二取流器,其中,所述控制器具体用于:The charging control device for a rail vehicle according to claim 1, wherein the current taking device comprises a first current taker and a second current taker, wherein the controller is specifically configured to:在所述第一取流器与所述充电装置的第一极相连,所述第二取流器与所述充电装置的第二极相连时,控制所述第一开关组件闭合,以使所述动力电池的第一极与所述第一取流器相连,所述动力电池的第二极与所述第二取流器相连,其中,所述动力电池的第一极与所述充电装置的第一极极性相同,所述动力电池的第二极与所述充电装置的第二极极性相同;或者,When the first current collector is connected to the first pole of the charging device, and the second current collector is connected to the second pole of the charging device, the first switch assembly is controlled to close so that all the The first pole of the power battery is connected to the first current collector, and the second pole of the power battery is connected to the second current collector, wherein the first pole of the power battery is connected to the charging device. The first pole of the same polarity and the second pole of the power battery has the same polarity as the second pole of the charging device; or在所述第一取流器与所述充电装置的第二极相连,所述第二取流器与所述充电装置的第一极相连时,控制所述第二开关组件闭合,以使所述动力电池的第一极与所述第二取流器相连,所述动力电池的第二极与所述第一取流器相连,其中,所述动力电池的第一极与所述充电装置的第一极极性相同,所述动力电池的第二极与所述充电装置的第二极极性相同。When the first current collector is connected to the second pole of the charging device, and the second current collector is connected to the first pole of the charging device, the second switch assembly is controlled to be closed so that all the The first pole of the power battery is connected to the second current collector, and the second pole of the power battery is connected to the first current collector, wherein the first pole of the power battery is connected to the charging device. The first pole of the battery has the same polarity, and the second pole of the power battery has the same polarity as the second pole of the charging device.
- 如权利要求2所述的轨道车辆的充电控制装置,其特征在于,所述控制器在确定所述取流装置与所述充电装置的连接关系时,具体用于:The charging control device for a rail vehicle according to claim 2, wherein the controller is specifically configured to: when determining a connection relationship between the current taking device and the charging device:获取所述轨道车辆的行车方向;Obtaining a driving direction of the rail vehicle;在轨道车辆以第一方向停靠在所述充电站时,确定所述第一取流器与所述充电装置的第一极相连,所述第二取流器与所述充电装置的第二极相连;以及When a rail vehicle is docked at the charging station in a first direction, it is determined that the first current collector is connected to a first pole of the charging device, and the second current collector is connected to a second pole of the charging device Connected; and在所述轨道车辆以第二方向停靠在所述充电站时,确定所述第一取流器与所述充电装置的第二极相连,所述第二取流器与所述充电装置的第一极相连,其中,所述第二方向与所述第一方向互为反向。When the rail vehicle is stopped at the charging station in the second direction, it is determined that the first current collector is connected to the second pole of the charging device, and the second current collector is connected to the first pole of the charging device. One pole is connected, wherein the second direction and the first direction are opposite to each other.
- 如权利要求1-3中任一项所述的轨道车辆的充电控制装置,其特征在于,所述第一开关组件包括:The charging control device for a rail vehicle according to any one of claims 1-3, wherein the first switch assembly includes:第一开关,所述第一开关的一端与所述动力电池的第一极相连,所述第一开关的另一端与所述第一取流器相连,并形成第一节点;A first switch, one end of the first switch is connected to a first pole of the power battery, and the other end of the first switch is connected to the first current collector and forms a first node;第二开关,所述第二开关的一端与所述动力电池的第二极相连,所述第二开关的另一端与所述第二取流器相连,并形成第二节点;A second switch, one end of the second switch is connected to the second pole of the power battery, and the other end of the second switch is connected to the second current collector and forms a second node;其中,所述控制器用于控制所述第一开关和所述第二开关的闭合和断开。The controller is configured to control closing and opening of the first switch and the second switch.
- 如权利要求1-4中任一项所述的轨道车辆的充电控制装置,其特征在于,第二开关组件包括:The charging control device for a rail vehicle according to any one of claims 1-4, wherein the second switch assembly includes:第三开关,所述第三开关的一端与所述第一节点相连,所述第三开关的另一端与所述动力电池的第二极相连;A third switch, one end of the third switch is connected to the first node, and the other end of the third switch is connected to the second pole of the power battery;第四开关,所述第四开关的一端与所述动力电池的第一极相连,所述第四开关的另一端与所述第二节点相连;A fourth switch, one end of the fourth switch is connected to a first pole of the power battery, and the other end of the fourth switch is connected to the second node;其中,所述控制器用于控制所述第三开关和所述第四开关的闭合和断开。The controller is configured to control closing and opening of the third switch and the fourth switch.
- 如权利要求3或5所述的轨道车辆的充电控制装置,其特征在于,还包括:The charging control device for a rail vehicle according to claim 3 or 5, further comprising:电压检测器,所述电压检测器的一端与所述第一节点相连,所述电压检测器的另一端与所述第二节点相连,所述电压检测器用于在所述轨道车辆停靠在所述充电站,且在预设时间内未获取到行车方向时,检测所述充电装置直流侧的输出电压极性;A voltage detector, one end of the voltage detector is connected to the first node, and the other end of the voltage detector is connected to the second node, the voltage detector is used to stop the rail vehicle at the The charging station detects the polarity of the output voltage on the DC side of the charging device when the driving direction is not obtained within a preset time;其中,所述控制器还用于获取所述输出电压极性,并在所述输出电压极性为第一极性时,确定所述第一取流器与所述充电装置的第一极相连,所述第二取流器与所述充电装置的第二极相连,以及在所述输出电压的极性为第二极性时,确定所述第一取流器与所述充电装置的第二极相连,所述第二取流器与所述充电装置的第一极相连。The controller is further configured to obtain the output voltage polarity, and determine that the first current collector is connected to the first pole of the charging device when the output voltage polarity is a first polarity. The second current collector is connected to the second pole of the charging device, and when the polarity of the output voltage is the second polarity, determining the first current collector and the first pole of the charging device is determined The two poles are connected, and the second current collector is connected to the first pole of the charging device.
- 如权利要求6所述的轨道车辆的充电控制装置,其特征在于,在所述第一开关组件或第二开关组件闭合后,所述电压检测器还获取所述动力电池的电压极性,所述控制器还用于:The charging control device for a rail vehicle according to claim 6, wherein after the first switch assembly or the second switch assembly is closed, the voltage detector further obtains a voltage polarity of the power battery, so The controller is also used for:根据所述动力电池的电压极性对所述第一开关组件或第二开关组件进行控制。Controlling the first switching component or the second switching component according to the voltage polarity of the power battery.
- 如权利要求6或7所述轨道车辆的充电控制装置,其特征在于,所述电压检测器采用电压霍尔传感器。The charging control device for a rail vehicle according to claim 6 or 7, wherein the voltage detector is a voltage hall sensor.
- 一种轨道车辆,其特征在于,包括:A rail vehicle, comprising:动力电池,用于给整车用电***供电;Power battery for powering the vehicle's electrical system;如权利要求1-8中任一项所述的轨道车辆的充电控制装置,所述充电控制装置用于在所述取流装置连接设置在充电站的充电装置时,使所述动力电池的极性与所述充电装置的 极性一致。The charging control device for a rail vehicle according to any one of claims 1 to 8, wherein the charging control device is configured to make a pole of the power battery when the current taking device is connected to a charging device provided at a charging station. The polarity is consistent with the polarity of the charging device.
- 一种轨道车辆的充电***,其特征在于,包括:A charging system for a rail vehicle, comprising:如权利要求9所述的轨道车辆;The rail vehicle according to claim 9;充电装置,所述充电装置设置在充电站,所述充电装置用于给所述轨道车辆充电。A charging device is provided at a charging station, and the charging device is used to charge the rail vehicle.
- 一种轨道车辆的充电控制方法,其特征在于,所述充电控制方法用于充电控制装置,所述充电控制装置包括取流装置和开关电路,所述取流装置设置在轨道车辆上,所述开关电路的一端与所述轨道车辆的动力电池相连,所述开关电路的另一端与所述取流装置相连,所述开关电路包括第一开关组件和第二开关组件,所述充电控制方法包括:A charging control method for a rail vehicle, wherein the charging control method is used for a charging control device, the charging control device includes a current taking device and a switch circuit, and the current taking device is provided on the rail vehicle, and One end of a switching circuit is connected to the power battery of the rail vehicle, and the other end of the switching circuit is connected to the current taking device. The switching circuit includes a first switching component and a second switching component. The charging control method includes :在所述轨道车辆停靠在充电站时,确定所述取流装置与所述充电装置的连接关系,其中,所述充电装置设置在所述充电站;Determining a connection relationship between the current taking device and the charging device when the rail vehicle is docked at a charging station, wherein the charging device is provided at the charging station;根据所述取流装置与所述充电装置的连接关系控制所述第一开关组件闭合或者控制所述第二开关组件闭合,以使所述动力电池的极性与所述充电装置的极性一致。Controlling the first switch component to be closed or controlling the second switch component to be closed according to the connection relationship between the current taking device and the charging device, so that the polarity of the power battery is consistent with the polarity of the charging device .
- 如权利要求11所述的轨道车辆的充电控制方法,其特征在于,确定所述取流装置与所述充电装置的连接关系,包括:The charging control method for a rail vehicle according to claim 11, wherein determining a connection relationship between the current taking device and the charging device comprises:获取所述轨道车辆的行车方向;Obtaining a driving direction of the rail vehicle;根据所述轨道车辆的行车方向确定所述取流装置与所述充电装置的连接关系。A connection relationship between the current taking device and the charging device is determined according to a traveling direction of the rail vehicle.
- 如权利要求12所述的轨道车辆的充电控制方法,其特征在于,当所述轨道车辆停靠在所述充电站,且在预设时间内未获取到行车方向时,还获取所述充电装置直流侧的输出电压极性,并根据所述输出电压极性确定所述取流装置与所述充电装置的连接关系。The charging control method for a rail vehicle according to claim 12, wherein when the rail vehicle is parked at the charging station and the driving direction is not obtained within a preset time, the DC of the charging device is further obtained. The output voltage polarity on the side, and determine the connection relationship between the current taking device and the charging device according to the output voltage polarity.
- 如权利要求12或13所述的轨道车辆的充电控制方法,其特征在于,当所述第一开关组件或第二开关组件闭合之后,还获取所述动力电池的电压极性,并根据所述动力电池的电压极性对所述第一开关组件或第二开关组件进行控制。The charging control method for a rail vehicle according to claim 12 or 13, wherein after the first switch component or the second switch component is closed, the voltage polarity of the power battery is further obtained, and according to the The voltage polarity of the power battery controls the first switch component or the second switch component.
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