European standard charging system and method, electronic equipment and storage medium

Abstract

The invention relates to the technical field of electric vehicles, and provides a European standard charging system and method, electronic equipment and a storage medium, the system comprises two charging seats, a charging conversion module, a BMS and a battery pack, each charging seat is connected with the charging conversion module, the BMS and the battery pack; the BMS is also connected with the battery pack; the target charging seat comprises at least one charging seat in the two charging seats; the charging conversion module is further connected with a charging pile and a BMS, and the charging pile is provided with a charging gun; the charging conversion module is used for driving the target charging seat to be locked under the condition that the control guide signal is matched with a charging gun connection state signal sent by the BMS; and under the condition that the target charging base is locked, the charging pile is used for charging the battery pack through the target charging base. According to the invention, a single-gun charging function and a double-gun charging function can be integrated on one charging conversion module, so that the cost and the occupation degree of the whole vehicle assembly space are reduced, and the assembly fault-tolerant rate and the charging fault-tolerant rate are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicles, and in particular to a European standard charging system, method, electronic equipment and storage medium. Background Art

[0002] With the increasing demand for the popularity of new energy vehicles in overseas markets, new energy electric vehicles have great development potential in overseas markets. At present, the problem that needs to be solved urgently when domestic new energy vehicles enter the overseas market is the charging problem of new energy vehicles. At present, the domestic CAN (Controller Area Network) protocol communication is adopted, and the specific communication protocol adopts GB / T 27930-2015, which is not compatible with European standard charging.

[0003] To adapt to the European standard charging, each charging station needs to be matched with an EVCC (Electric Vehicle Communication Controller). The EVCC can convert the CAN signal in the national standard charging into the PLC (Programmable Logic Controller) signal in the CCS (Combined Charging System) charging mode in the European standard. If dual-gun charging is required, two EVCCs are required. However, two EVCCs are more expensive, occupy more assembly space in the vehicle, and are prone to cross-assembly and other assembly errors during actual assembly, resulting in charging failure. Summary of the invention

[0004] The present invention provides a European standard charging system, method, electronic device and storage medium, which are used to solve the defects in the prior art that two EVCCs have high costs when charging with two guns, occupy more assembly space of the whole vehicle, and are prone to assembly errors such as cross assembly during actual assembly, resulting in the inability to charge.

[0005] The present invention provides a European standard charging system, comprising: two charging seats, a charging conversion module, a BMS and a battery pack, wherein: Each of the charging bases is connected to the charging conversion module, the BMS and the battery pack; each of the charging bases is used to send a plug-in signal to the BMS and a control guide signal to the charging conversion module when a charging gun is connected; The BMS is also connected to the battery pack, and the BMS is used to determine a charging gun connection status signal of a target charging seat based on at least one charging gun plug signal; the target charging seat includes at least one of the two charging seats; The charging conversion module is also connected to the charging pile and the BMS, and the charging pile is provided with a charging gun; the charging conversion module is used to drive the target charging seat to lock when the control guidance signal and the charging gun connection status signal sent by the BMS match; when the target charging seat is locked, the charging pile is used to charge the battery pack through the target charging seat.

[0006] According to the European standard charging system provided by the present invention, the charging conversion module includes two groups of locking drive pins and two groups of locking feedback pins. The two groups of locking drive pins, the two groups of locking feedback pins and the two charging seats are correspondingly connected to obtain the locking paths corresponding to the two charging seats respectively.

[0007] According to the European standard charging system provided by the present invention, the charging conversion module further includes two control guide pins, and the two control guide pins are correspondingly connected to the two charging seats; The charging conversion module is used to receive a control guidance signal sent by a target charging seat corresponding to the target control guidance pin based on the target control guidance pin; the target control guidance pin includes at least one pin of the two control guidance pins.

[0008] According to the European standard charging system provided by the present invention, the charging conversion module further includes an output pin, and the charging conversion module is connected to the BMS based on the output pin; In a case where the charging conversion module receives the target PWM signal, the charging conversion module is used to output an analog wake-up signal to the BMS based on the output pin, and the analog wake-up signal is used to adjust the working state of the BMS.

[0009] According to the European standard charging system provided by the present invention, the charging conversion module also includes a CAN pin, and the charging conversion module is also connected to the BMS based on the CAN pin; the CAN pin adopts the CAN protocol; the charging conversion module is used to communicate with the BMS based on the CAN protocol.

[0010] According to the European standard charging system provided by the present invention, the battery pack includes a power battery and a high-voltage box, the power battery and the high-voltage box are both connected to the BMS, and the power battery is connected to the high-voltage box, and the high-voltage box is respectively connected to the two charging seats; After the BMS sends the charging gun connection status signal to the charging conversion module, the BMS is further used to obtain the battery charging parameters corresponding to the power battery, and send the battery charging parameters to the charging conversion module, the charging conversion module is used to forward the battery charging parameters to the charging pile, and the charging pile is used to determine the battery status of the power battery based on the battery charging parameters; The BMS is also used to control the on / off state of the high voltage box to control the connection state between the power battery and the target charging station.

[0011] According to the European standard charging system provided by the present invention, the charging conversion module is also used to forward the maximum output parameter of the charger sent by the charging pile to the BMS; The BMS is further configured to generate a battery charging ready signal corresponding to the power battery when the maximum output parameter of the charger matches the battery charging parameter; The charging conversion module sends a charger output ready signal to the BMS when receiving the battery charging ready signal sent by the BMS; When receiving the charger output ready signal, the BMS controls the target charging path in the high-voltage box connected to the target charging seat to be in a conducting state, and the charging pile is used to charge the power battery through the target charging path.

[0012] The present invention further provides a European standard charging method, which is applied to any of the above-mentioned European standard charging systems, and the method comprises: The charging conversion module receives a charging gun connection status signal of a target charging seat sent by the BMS, and a control guidance signal sent by the target charging seat; the target charging seat includes at least one of the two charging seats; When the control guidance signal matches the charging gun connection status signal sent by the BMS, the charging conversion module drives the target charging seat to lock, so as to instruct the charging pile to charge the battery pack based on the target charging seat.

[0013] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, any one of the above-mentioned European standard charging methods is implemented.

[0014] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements any of the above-described European standard charging methods.

[0015] The present invention also provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the European standard charging method as described above is implemented.

[0016] The European standard charging system, method, electronic device and storage medium provided by the present invention, both charging seats are connected to the same charging conversion module, and each charging seat sends a gun plug signal to the BMS after connecting the charging gun, and sends a control guide signal to the charging conversion module. After identifying at least one gun plug signal, the BMS sends a charging gun connection status signal corresponding to the target charging seat to the charging conversion module. When the charging conversion module determines that the charging gun connection status signal matches the control guide signal, it drives the target charging seat to lock, so that the charging seat can charge the battery pack through the target charging seat. Since the target charging seat includes at least one of the two charging seats, the present invention integrates the single-gun and double-gun charging functions into a charging conversion module, reduces the cost and the degree of occupation of the assembly space of the whole vehicle, and avoids assembly errors such as cross assembly, improves the assembly fault tolerance rate, and at the same time, combines the BMS and the two charging seats to form two independent charging paths, and the charging of the two charging paths does not affect each other, which improves the charging fault tolerance rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is one of the structural schematic diagrams of the European standard charging system provided by the embodiment of the present invention.

[0019] Figure 2 Schematic diagram of the pins of the charging conversion module provided in an embodiment of the present invention.

[0020] Figure 3 This is the second structural schematic diagram of the European standard charging system provided by an embodiment of the present invention.

[0021] Figure 4 It is a schematic diagram of the charging process of the European standard charging system provided by an embodiment of the present invention.

[0022] Figure 5 It is a flow chart of the European standard charging method provided by an embodiment of the present invention.

[0023] Figure 6 It is a schematic diagram of the structure of a European standard charging device provided in an embodiment of the present invention.

[0024] Figure 7 It is a schematic diagram of the structure of an electronic device provided by an embodiment of the present invention.

[0025] Reference numerals: 110: charging base; 120: charging conversion module; 130: BMS; 140: battery pack; 141: power battery; 142: high-voltage box; 200: charging pile. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In view of the problem that the two EVCCs in the prior art have high costs when charging with two guns, occupy more assembly space of the whole vehicle, and are prone to assembly errors such as cross assembly during actual assembly, resulting in the inability to charge, the embodiment of the present invention provides a European standard charging system. Figure 1 is one of the structural schematic diagrams of the European standard charging system provided by the embodiment of the present invention, such as Figure 1 As shown, the European standard charging system includes: two charging seats 110 , a charging conversion module 120 , a BMS 130 and a battery pack 140 .

[0028] Each of the charging bases 110 is connected to the charging conversion module 120 , the BMS 130 and the battery pack 140 ; ​​each of the charging bases 110 is used to send a plug-in signal PP to the BMS 130 and send a control guide signal to the charging conversion module 120 when a charging gun is connected.

[0029] The BMS 130 is also connected to the battery pack 140 , and is used to determine a charging gun connection status signal of a target charging socket 110 based on at least one plug-in signal PP; the target charging socket 110 includes at least one charging socket 110 of the two charging sockets 110 .

[0030] The charging conversion module 120 is also connected to the charging pile 200 and the BMS 130, and the charging pile 200 is provided with a charging gun; the charging conversion module 120 is used to drive the target charging seat 110 to lock when the control guidance signal and the charging gun connection status signal sent by the BMS 130 match; when the target charging seat 110 is locked, the charging pile 200 is used to charge the battery pack 140 through the target charging seat 110.

[0031] Specifically, the charging seat 110 is an interface provided on the electric vehicle and docked with the charging gun. In the embodiment of the present invention, the European standard charging system includes two charging seats 110, namely, a charging seat 110 A and a charging seat 110 B. The charging gun is the part that the user inserts into the electric vehicle charging seat 110. The charging seat 110 A is respectively connected to the charging conversion module 120, the BMS 130 and the battery pack 140, and the charging seat 110 B is respectively connected to the charging conversion module 120, the BMS 130 and the battery pack 140. After the charging gun is inserted into the target charging seat 110, the target charging seat 110 can send a gun insertion signal PP to the BMS 130 and send a control pilot function (CP) signal to the charging conversion module 120. The BMS 130 can determine the charging gun connection status signal by identifying the gun insertion signal PP. The charging gun connection status signal is used to characterize the connection status between the target charging seat 110 and the charging gun. At the same time, the charging conversion module 120 can identify the connection status between the target charging seat 110 and the charging gun by identifying the duty cycle and amplitude of the control pilot signal. After the charging conversion module 120 receives the charging gun connection status signal sent by the BMS 130, the charging gun connection status signal can be compared with the control guidance signal, that is, the connection status between the target charging seat 110 and the charging gun identified by the BMS 130 is compared with the connection status between the target charging seat 110 and the charging gun identified by the charging conversion module 120 to determine whether they are consistent. If they are consistent, the electronic lock in the target charging seat 110 is driven to lock to lock the connection status between the target charging seat 110 and the corresponding charging gun, so that the charging pile 200 can transmit electrical energy to the battery pack 140 through the charging gun and the target charging seat 110, that is, European standard charging is performed.

[0032] It should be noted that the target charging seat 110 includes at least one charging seat 110 of at least two charging seats 110, so that the charging pile 200 can realize single-double gun charging when charging the battery pack 140. That is, if there is one charging gun, and the charging gun is inserted into the charging seat 110 A, the charging gun can charge the battery pack 140 of the electric vehicle through the charging seat 110 A, realizing the single-gun charging function; if there is one charging gun, and the charging gun is inserted into the charging seat 110 B, the charging gun can charge the battery pack 140 of the electric vehicle through the charging seat 110 B, realizing the single-gun charging function; if there are two charging guns, and one of the charging guns is inserted into the charging seat 110 A, and the other charging gun is inserted into the charging seat 110 B, then the charging gun can charge the battery pack 140 of the electric vehicle through the charging seat 110 A and the charging seat 110 B, realizing the double-gun charging.

[0033] It should be noted that the charging pile 200 is used to convert the AC power of the power grid into DC power, or to provide AC power, and the charging pile 200 is connected to each charging gun through a charging cable. The electric energy in the charging pile 200 is transmitted to the battery pack 140 of the electric vehicle through the charging gun and the charging seat 110.

[0034] It should be noted that both the charging stand 110 A and the charging stand 110 B are provided with an electronic lock, which is related to the charging state of the electric vehicle and will be locked only when the electric vehicle is in the charging state. The electronic lock can ensure the stability of the connection between the charging gun and the electric vehicle during the charging process, and prevent the charging gun from falling off due to accidental collision or pulling during the charging process, thereby avoiding possible risks such as electric shock or fire.

[0035] It should be noted that the charging conversion module 120 is obtained by improving the EVCC (Electric Vehicle Communication Controller). The charging conversion module 120 in the embodiment of the present invention retains the traditional EVCC that can convert the CAN (Controller Area Network) signal in the national standard charging into the PLC (Programmable Logic Controller) signal in the CCS (Combined Charging System) charging mode in the European standard, while improving the internal pins so that the charging conversion module 120 integrates single and double gun charging functions, that is, the charging conversion module 120 in the embodiment of the present invention can be connected to the charging seat 110 A and the charging seat 110 B at the same time, and charge by controlling the locking state of the electronic lock in the charging seat 110 A and / or the charging seat 110 B. The charging seat 110 A and the charging seat 110 B are connected to the same charging conversion module 120. Compared with the prior art in which each charging seat 110 is connected to an EVCC, the embodiment of the present invention saves one EVCC, reduces costs, and reduces the occupancy rate of the vehicle assembly space. At the same time, errors such as cross-assembly are avoided during assembly, which improves the assembly fault tolerance and charging fault tolerance.

[0036] It should be noted that after the charging base 110 is connected to the charging gun, the charging base 110 may send a gun plug signal PP to the BMS 130 , that is, the charging base 110 and the gun plug signal PP correspond one to one.

[0037] Further, Figure 2 is a pin diagram of a charging conversion module provided in an embodiment of the present invention, such as Figure 2As shown, the charging conversion module 120 includes two groups of locking drive pins and two groups of locking feedback pins. The two groups of locking drive pins, the two groups of locking feedback pins and the two charging seats 110 are correspondingly connected to obtain the locking paths corresponding to the two charging seats 110 respectively.

[0038] Specifically, in the embodiment of the present invention, the charging conversion module 120 includes 20 pins, and the definition of each pin is shown in Table 1.

[0039] Table 1

[0040] As can be seen from Table 1, the charging conversion module 120 includes two groups of locking drive pins. Among them, the first group of locking drive pins is the locking drive pins corresponding to the charging seat 110 A, and the first group of locking drive pins includes pin 4 and pin 14, and pin 4 is a positive pin, and pin 14 is a negative pin. The second group of locking drive pins is the locking drive pins corresponding to the charging seat 110 B, and the second group of locking drive pins includes pin 5 and pin 15, and pin 5 is a positive pin, and pin 15 is a negative pin.

[0041] In addition, the charging conversion module 120 also includes two groups of locking feedback pins. Among them, the first group of locking feedback pins are pins corresponding to the charging stand 110 A, and the first group of locking feedback pins include pins 6 and 16, and pin 6 is a positive pin, and pin 16 is a negative pin. The second group of locking feedback pins are pins corresponding to the charging stand 110 B, and the second group of locking feedback pins include pins 7 and 17, and pin 7 is a positive pin, and pin 17 is a negative pin.

[0042] The first group of locking drive pins and the first group of locking feedback pins are both connected to the charging base 110 A, and the second group of locking drive pins and the second group of locking feedback pins are both connected to the charging base 110 B, thereby forming two independent locking paths in the charging conversion module 120, and the two locking paths do not affect each other.

[0043] Furthermore, if Figure 2 As shown, the charging conversion module 120 further includes two control guide pins, and the two control guide pins are correspondingly connected to the two charging seats 110; The charging conversion module 120 is used to receive a control guidance signal sent by a target charging seat 110 corresponding to the target control guidance pin based on the target control guidance pin; the target control guidance pin includes at least one pin of the two control guidance pins.

[0044] Specifically, as can be seen from Table 1, the charging conversion module 120 also includes two control guide pins. Among them, the first control guide pin is the 8th pin, and the 8th pin is connected to the charging seat 110 A, and the 8th pin is used to receive the control guide signal sent by the charging seat 110 A. The second control guide pin is the 9th pin, and the 9th pin is connected to the charging seat 110 B, and the 9th pin is used to receive the control guide signal sent by the charging seat 110 B. After the target charging seat 110 is connected to the charging gun, the target charging seat 110 can wake up the charging conversion module 120 through the corresponding 8th pin and / or 9th pin.

[0045] It should be noted that the control guidance signal is used to monitor the interactive function between the electric vehicle and the charging pile 200. The control guidance signal is a signal that uses a PWM (Pulse Width Modulation) signal and an alternating amplitude. When the control guidance signal is a PWM signal, the duty cycle of the PWM signal is used to indicate the maximum charging current data that the charging pile 200 can provide, and the amplitude of the control guidance signal is used to indicate different states of the charging gun. The charging gun may include: a gun removal state, a gun insertion state, a charging preparation state, a charging start state, and a charging stop state. Different states of the charging gun correspond to different CP signals. For example: before the charging gun is connected to the electric vehicle, the CP signal is a 12V high-level signal. After the charging gun is connected to the electric vehicle, due to the voltage divider resistor in the on-board charger, the CP signal will jump to a 9V signal. After the charging pile 200 detects that the CP signal has become 9V, it will switch the output to a PWM signal. After the electric vehicle determines to charge, it will adjust the voltage divider resistor to make the CP signal jump to a 6V signal. After the charging pile 200 detects the 6V signal, it turns on the charging path and starts charging the electric vehicle. During the charging process, if the amplitude of the PWM signal jumps to non-6V, the charging pile 200 will cut off the power in time.

[0046] Furthermore, if Figure 2 As shown, the charging conversion module 120 further includes an output pin, and the charging conversion module 120 is connected to the BMS 130 based on the output pin; When the charging conversion module 120 receives the target PWM signal, the charging conversion module 120 is used to output an analog wake-up signal to the BMS 130 based on the output pin, and the analog wake-up signal is used to adjust the working state of the BMS 130 .

[0047] Specifically, the charging conversion module 120 also includes an output pin, which is the 10th pin, and the output pin is connected to the BMS 130. After the charging conversion module 120 is awakened by the target charging station 110, the charging conversion module 120 can send an analog wake-up signal to the BMS 130 through the output pin, and the analog wake-up signal is used to adjust the BMS 130 from the standby state to the working state, that is, wake up the BMS 130 to work.

[0048] Furthermore, if Figure 2 As shown, the charging conversion module 120 also includes a CAN pin, and the charging conversion module 120 is also connected to the BMS 130 based on the CAN pin; the CAN pin adopts a CAN protocol; the charging conversion module 120 is used to communicate with the BMS 130 based on the CAN protocol.

[0049] Specifically, the charging conversion module 120 further includes a CAN pin, which includes a 3rd pin and a 13th pin, wherein the 3rd pin indicates a lower level and the 13th pin indicates a higher level. The CAN pin is connected to the BMS 130, and the charging conversion module 120 and the BMS 130 exchange data through the CAN protocol corresponding to the CAN pin.

[0050] Further, Figure 3 This is the second structural diagram of the European standard charging system provided by the embodiment of the present invention, such as Figure 3 As shown, the battery pack 140 includes a power battery 141 and a high-voltage box 142, both of which are connected to the BMS 130, and the power battery 141 is connected to the high-voltage box 142, and the high-voltage box 142 is respectively connected to the two charging seats 110; After the BMS 130 sends the charging gun connection status signal to the charging conversion module 120, the BMS 130 is further used to obtain the battery charging parameters corresponding to the power battery 141, and send the battery charging parameters to the charging conversion module 120, and the charging conversion module 120 is used to forward the battery charging parameters to the charging pile 200, and the charging pile 200 is used to determine the battery status of the power battery 141 based on the battery charging parameters; The BMS 130 is further used to control the on / off state of the high voltage box 142 to control the connection state between the power battery 141 and the target charging station 110 .

[0051] Specifically, the battery pack 140 includes a power battery 141 and a high-voltage box 142. The power battery 141 can be a power supply battery in an electric vehicle, which is used to provide power for the electric vehicle and drive the electric vehicle. The BMS 130 is connected to the power battery 141. After the BMS 130 sends a charging gun connection status signal to the charging conversion module 120, the BMS 130 can also obtain the battery charging parameters corresponding to the power battery 141, and send the battery charging parameters to the charging pile 200 through the charging conversion module 120. The charging pile 200 can determine whether the battery state of the power battery 141 is appropriate according to the battery charging parameters, and then adjust the charging strategy and the optimal charging speed to avoid overcharging, over-discharging or overheating, ensure battery safety, and at the same time, improve charging efficiency and reduce charging time. When the charging pile 200 determines that the battery state of the power battery 141 is appropriate, the BMS 130 can control the on-off state of the high-voltage box 142 to control the connection state between the power battery 141 and the target charging seat 110, that is, control the on-off state of the charging path for charging the power battery 141. The high-voltage box 142 may be a relay or a safety switch that controls the on-off state of the charging path between the power battery 141 and each charging seat 110. For example, taking the high-voltage box 142 including relay A and relay B as an example, relay A is used to control the on-off state of the charging path between the charging seat 110 A and the power battery 141, and relay B is used to control the on-off state of the charging path between the charging seat 110 B and the power battery 141. When relay A is in a closed state, the charging pile 200 can charge the power battery 141 through the charging seat 110 A and relay A. When relay B is in a closed state, the charging pile 200 can charge the power battery 141 through the charging seat 110 B and relay B. When both relay A and relay B are in a closed state, the charging pile 200 can simultaneously charge the power battery 141 through the charging path A formed by the charging seat 110 A and relay A, and the charging path B formed by the charging seat 110 B and relay B.

[0052] Optionally, the power supply battery may be composed of a plurality of battery cells connected in series, in parallel, or in series and in parallel, which is not limited in the embodiment of the present invention. +The total capacity of the power supply battery determines the cruising range of the electric vehicle, and the output power of the power supply battery directly affects the performance of the electric vehicle such as acceleration and maximum speed.

[0053] Optionally, the battery charging parameter may include voltage, current, temperature, etc., which is not limited in the embodiment of the present invention.

[0054] Furthermore, the charging conversion module 120 is also used to forward the maximum output parameter of the charger sent by the charging pile 200 to the BMS 130; The BMS 130 is further configured to generate a battery charging ready signal corresponding to the power battery 141 when the maximum output parameter of the charger matches the battery charging parameter; The charging conversion module 120 sends a charger output ready signal to the BMS 130 when receiving the battery charging ready signal sent by the BMS 130; When receiving the charger output ready signal, the BMS 130 controls the target charging path in the high voltage box 142 connected to the target charging seat 110 to be in a conducting state, and the charging pile 200 is used to charge the power battery 141 through the target charging path.

[0055] Specifically, Figure 4 : is a schematic diagram of the charging process of the European standard charging system provided by an embodiment of the present invention, such as Figure 4 As shown, the charging process includes the following steps.

[0056] S1. After the target charging station 110 is connected to the charging gun, the target charging station 110 sends a CP signal to the charging conversion module 120 to wake up the charging conversion module 120. After that, the charging conversion module 120 sends a simulated wake-up signal to the BMS 130 to wake up the BMS 130. After the BMS 130 is woken up, the target charging station 110 may send a gun plug signal PP to the BMS 130.

[0057] S2. BMS 130 can determine whether the target charging station 110 is successfully connected to the charging gun by determining the source of the plug-in signal PP, that is, determining whether the plug-in signal PP corresponding to the charging station 110 A is received, and / or whether the plug-in signal PP corresponding to the charging station 110 B is received. If the connection is successful, the charging gun connection status signal is sent to the charging conversion module 120, and a handshake match is performed with the charging pile 200. If the match is successful, the battery charging parameters of the power battery 141 are obtained and sent to the charging forwarding module; if the connection fails, the charging fails.

[0058] S3. After receiving the CP signal, the charging conversion module 120 can determine the plug-in status of the target charging seat 110 by matching the CP signal and the charging gun connection status signal. That is, it is respectively determined whether the charging seat 110 A is connected to the charging gun and whether the charging seat 110B is connected to the charging gun. If the charging seat 110 A is connected to the charging gun, the electronic lock in the charging seat 110 A is driven to lock; if the charging seat 110 B is connected to the charging gun, the electronic lock in the charging seat 110 B is driven to lock. Afterwards, it is determined whether the corresponding electronic locks in the charging seat 110 A and / or the charging seat 110 B are locked successfully. If the locking fails, the charging fails. If the locking is successful, it is determined whether the battery charging parameters sent by the BMS 130 are received. If the battery charging parameters are received, the battery charging parameters are forwarded to the charging pile 200.

[0059] S4. After detecting that a charging gun is connected to the target charging seat 110 of the electric vehicle, the charging pile 200 can determine whether the charging gun is successfully connected. If the connection fails, the charging fails. If the connection is successful, the received battery charging parameters are judged to determine whether the battery status of the power battery 141 is appropriate. If appropriate, the maximum output parameters of the charger are sent to the charging conversion module 120, and the charging pile 200 enters the output status ready stage.

[0060] S5. If the charging conversion module 120 does not receive the maximum output parameter of the charger, the charging fails. If the maximum output parameter of the charger is received, the maximum output parameter of the charger is forwarded to the BMS 130.

[0061] S6. If the BMS 130 does not receive the maximum output parameter of the charger, charging fails. If the BMS 130 receives the maximum output parameter of the charger, it determines whether the maximum output parameter of the charger is appropriate. If not, charging fails. If appropriate, a battery charging ready signal is sent to the charging forwarding module.

[0062] S7. If the charging conversion module 120 does not receive the battery charging ready signal, the charging fails. If the charging conversion module 120 receives the battery charging ready signal, the charging conversion module 120 further sends a charger output ready signal to the BMS 130.

[0063] S8. If the BMS 130 does not receive the charger output ready signal, the charging fails. If the BMS 130 receives the charger output ready signal, the charging process begins. That is, the BMS 130 controls the charging path connected to the target charging seat 110 in the high-voltage box 142 to be turned on, so that the charging pile 200 charges the power battery 141 through the target charging seat 110 and the high-voltage box 142.

[0064] In the European standard charging system provided by the embodiment of the present invention, both charging seats are connected to the same charging conversion module. After connecting the charging gun, each charging seat sends a gun plug signal PP to the BMS, and sends a control guide signal to the charging conversion module. After identifying at least one gun plug signal PP, the BMS sends a charging gun connection status signal corresponding to the target charging seat to the charging conversion module. When the charging conversion module determines that the charging gun connection status signal matches the control guide signal, it drives the target charging seat to lock, so that the charging pile can charge the battery pack through the target charging seat. Since the target charging seat includes at least one of the two charging seats, the present invention integrates the single-gun and double-gun charging functions into one charging conversion module, reduces the cost and the degree of occupation of the assembly space of the whole vehicle, and avoids assembly errors such as cross assembly, improves the assembly fault tolerance rate, and at the same time, combines the BMS and the two charging seats to form two independent charging paths, and the charging of the two charging paths does not affect each other, which improves the charging fault tolerance rate.

[0065] The embodiment of the present invention further provides a European standard charging method, which is applied to the European standard charging system as described in any one of the above items. Figure 5 is a flow chart of the European standard charging method provided by an embodiment of the present invention, such as Figure 5 As shown, the method includes the following steps 510 and 520.

[0066] Step 510: Receive a charging gun connection status signal of a target charging socket sent by a BMS, and a control guidance signal sent by the target charging socket; the target charging socket includes at least one of the two charging sockets.

[0067] Step 520: When the control guidance signal matches the charging gun connection status signal sent by the BMS, the target charging seat is driven to lock to instruct the charging pile to charge the battery pack based on the target charging seat.

[0068] In the European standard charging method provided by the embodiment of the present invention, the charging conversion module receives the charging gun connection status signal corresponding to the target charging seat sent by the BMS, and the control guidance signal sent by the target charging seat, and when it is determined that the charging gun connection status signal matches the control guidance signal, it drives the target charging seat to lock, so that the charging pile can charge the battery pack through the target charging seat. Since the target charging seat includes at least one of the two charging seats, the present invention integrates the single-gun and double-gun charging functions into one charging conversion module, reduces the cost and the degree of occupation of the vehicle assembly space, and avoids assembly errors such as cross assembly, improves the assembly fault tolerance rate, and at the same time, combines the BMS and the two charging seats to form two independent charging paths, and the charging of the two charging paths does not affect each other, which improves the charging fault tolerance rate.

[0069] The European standard charging device provided by the present invention is described below. The European standard charging device described below and the European standard charging method described above can be referenced to each other.

[0070] The embodiment of the present invention further provides a European standard charging device, which is applied to any of the above-mentioned European standard charging systems. Figure 6 is a schematic diagram of the structure of a European standard charging device provided by an embodiment of the present invention, such as Figure 6 As shown, the device includes a receiving module 610 and a locking module 620 .

[0071] The receiving module 610 is used to receive the charging gun connection status signal of the target charging socket sent by the BMS, and the control guidance signal sent by the target charging socket; the target charging socket includes at least one of the two charging sockets.

[0072] The locking module 620 is used to drive the target charging seat to lock when the control guidance signal matches the charging gun connection status signal sent by the BMS, so as to instruct the charging pile to charge the battery pack based on the target charging seat.

[0073] In the European standard charging device provided by the embodiment of the present invention, the charging conversion module receives the charging gun connection status signal corresponding to the target charging seat sent by the BMS, and the control guidance signal sent by the target charging seat, and when it is determined that the charging gun connection status signal matches the control guidance signal, it drives the target charging seat to lock, so that the charging pile can charge the battery pack through the target charging seat. Since the target charging seat includes at least one of the two charging seats, the present invention integrates the single-gun and double-gun charging functions into one charging conversion module, reduces the cost and the degree of occupation of the vehicle assembly space, and avoids assembly errors such as cross assembly, improves the assembly fault tolerance rate, and at the same time, combines the BMS and the two charging seats to form two independent charging paths, and the charging of the two charging paths does not affect each other, which improves the charging fault tolerance rate.

[0074] Figure 7 is a schematic diagram of the structure of an electronic device provided by an embodiment of the present invention, such as Figure 7 As shown, the electronic device may include: a processor 710, a communications interface 720, a memory 730 and a communication bus 740, wherein the processor 710, the communications interface 720 and the memory 730 communicate with each other via the communication bus 740. The processor 710 may call the logic instructions in the memory 730 to execute the European standard charging method, which includes: Receiving a charging gun connection status signal of a target charging seat sent by the BMS, and a control guidance signal sent by the target charging seat; the target charging seat includes at least one of the two charging seats; When the control guidance signal matches the charging gun connection status signal sent by the BMS, the target charging seat is driven to lock to instruct the charging pile to charge the battery pack based on the target charging seat.

[0075] In addition, the logic instructions in the above-mentioned memory 730 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on this understanding, the technical solution of the present invention can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0076] On the other hand, the present invention further provides a computer program product, the computer program product comprising a computer program, the computer program can be stored on a non-transitory computer-readable storage medium, and when the computer program is executed by a processor, the computer can execute the European standard charging method provided by the above methods, the method comprising: Receiving a charging gun connection status signal of a target charging seat sent by the BMS, and a control guidance signal sent by the target charging seat; the target charging seat includes at least one of the two charging seats; When the control guidance signal matches the charging gun connection status signal sent by the BMS, the target charging seat is driven to lock to instruct the charging pile to charge the battery pack based on the target charging seat.

[0077] In another aspect, the present invention further provides a non-transitory computer-readable storage medium having a computer program stored thereon, which is implemented when the computer program is executed by a processor to execute the European standard charging method provided by the above methods, the method comprising: Receiving a charging gun connection status signal of a target charging seat sent by the BMS, and a control guidance signal sent by the target charging seat; the target charging seat includes at least one of the two charging seats; When the control guidance signal matches the charging gun connection status signal sent by the BMS, the target charging seat is driven to lock to instruct the charging pile to charge the battery pack based on the target charging seat.

[0078] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0079] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A European standard charging system, characterized in that: include: Two charging stations, charging conversion module, BMS and battery pack, including: Each of the charging bases is connected to the charging conversion module, the BMS and the battery pack; each of the charging bases is used to send a plug-in signal to the BMS and a control guide signal to the charging conversion module when a charging gun is connected; The BMS is also connected to the battery pack, and the BMS is used to determine a charging gun connection status signal of a target charging seat based on at least one charging gun plug signal; the target charging seat includes at least one of the two charging seats; The charging conversion module is also connected to the charging pile and the BMS, and the charging pile is provided with a charging gun; the charging conversion module is used to drive the target charging seat to lock when the control guidance signal matches the charging gun connection status signal sent by the BMS; When the target charging base is locked, the charging pile is used to charge the battery pack through the target charging base.

2. The European standard charging system according to claim 1, characterized in that: The charging conversion module includes two groups of locking drive pins and two groups of locking feedback pins. The two groups of locking drive pins, the two groups of locking feedback pins and the two charging seats are connected correspondingly to obtain locking paths corresponding to the two charging seats.

3. The European standard charging system according to claim 1, characterized in that: The charging conversion module further includes two control guide pins, and the two control guide pins are connected to the two charging seats correspondingly; The charging conversion module is used to receive a control guidance signal sent by a target charging seat corresponding to the target control guidance pin based on the target control guidance pin; The target control guide pin includes at least one pin of the two control guide pins.

4. The European standard charging system according to claim 3, characterized in that: The charging conversion module further includes an output pin, and the charging conversion module is connected to the BMS based on the output pin; In a case where the charging conversion module receives the target PWM signal, the charging conversion module is used to output an analog wake-up signal to the BMS based on the output pin, and the analog wake-up signal is used to adjust the working state of the BMS.

5. The European standard charging system according to claim 1, characterized in that: The charging conversion module also includes a CAN pin, and the charging conversion module is also connected to the BMS based on the CAN pin; the CAN pin adopts a CAN protocol; and the charging conversion module is used to communicate with the BMS based on the CAN protocol.

6. The European standard charging system according to any one of claims 1 to 5, characterized in that: The battery pack includes a power battery and a high-voltage box, both of which are connected to the BMS, and the power battery is connected to the high-voltage box, which is respectively connected to the two charging seats; After the BMS sends the charging gun connection status signal to the charging conversion module, the BMS is further used to obtain the battery charging parameters corresponding to the power battery, and send the battery charging parameters to the charging conversion module, the charging conversion module is used to forward the battery charging parameters to the charging pile, and the charging pile is used to determine the battery status of the power battery based on the battery charging parameters; The BMS is also used to control the on / off state of the high voltage box to control the connection state between the power battery and the target charging station.

7. The European standard charging system according to claim 6, characterized in that: The charging conversion module is also used to forward the maximum output parameter of the charger sent by the charging pile to the BMS; The BMS is further configured to generate a battery charging ready signal corresponding to the power battery when the maximum output parameter of the charger matches the battery charging parameter; The charging conversion module sends a charger output ready signal to the BMS when receiving the battery charging ready signal sent by the BMS; When receiving the charger output ready signal, the BMS controls the target charging path in the high-voltage box connected to the target charging seat to be in a conducting state, and the charging pile is used to charge the power battery through the target charging path.

8. A European standard charging method, characterized in that: Applied to the European standard charging system according to any one of claims 1 to 7, the method comprises: Receiving a charging gun connection status signal of a target charging seat sent by the BMS, and a control guidance signal sent by the target charging seat; the target charging seat includes at least one of the two charging seats; When the control guidance signal matches the charging gun connection status signal sent by the BMS, the target charging seat is driven to lock to instruct the charging pile to charge the battery pack based on the target charging seat.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the European standard charging method as claimed in claim 8 is implemented.

10. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the European standard charging method as claimed in claim 8 is implemented.

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