Multi-standard compatible mobile charging method based on charging demand integration

Abstract

The invention discloses a multi-standard compatible mobile charging method based on charging demand integration, belongs to the technical field of electric vehicle charging, and aims to solve the problems that the compatibility of various charging standards and the integration level are insufficient, and increasingly diversified charging demands, charging demands and efficient integrated application scenes are difficult to meet. Comprising the following steps: when a charging gun or a charging seat of the mobile charging equipment is connected with an external EV vehicle or external charging equipment, detecting a connection signal through a corresponding charging interface, and transmitting the signal to a micro-control unit; the charging interface comprises an European and American standard direct current charging seat interface, a national standard direct current charging seat interface, an European and American standard direct current charging gun interface and a national standard direct current charging seat interface; by arranging various charging interfaces and combining intelligent control and protocol conversion functions of the micro-control unit, direct current charging modes of various mainstream charging standards such as the national standard and the European and American standard can be supported at the same time, and compatibility of various charging standards and charging and discharging is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of electric vehicle charging, and particularly relates to a multi-standard compatible mobile charging method based on integrated charging requirements. Background Art

[0002] The replacement of fossil energy with new energy is a major trend in the future development of the energy industry. The development of electric vehicles will be an important end-use of new energy, replacing traditional fuel vehicles and becoming an important tool for transportation electrification. Currently, electric vehicles are in a period of rapid development. Different from traditional vehicles, electric vehicles can save a large amount of energy and are also beneficial to environmental protection. With the popularization of electric vehicles, the application of mobile charging devices is becoming more and more widespread.

[0003] Most of the existing mobile charging devices are designed to adapt to a single or a few charging standards. For example, they only support national standard AC charging or DC charging of specific enterprise standards, etc. Their internal structures usually arrange each charging module, control unit, etc. dispersedly, and each module is connected through independent lines, with low integration, resulting in a large device volume, complex wiring, high cost, low reliability, and poor compatibility when facing vehicles with different charging standards, being difficult to adapt to the actual situation of coexistence of multiple charging standards, and unable to achieve flexible charging switching and efficient integration.

[0004] Therefore, there is a need for a multi-standard compatible mobile charging method based on integrated charging requirements to solve the problems existing in the prior art, such as deficiencies in compatibility with multiple charging standards and integration, being difficult to meet the increasingly diverse charging requirements, power replenishment requirements, and application scenarios of efficient integration. Summary of the Invention

[0005] The purpose of the present invention is to provide a multi-standard compatible mobile charging method based on integrated charging requirements to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A multi-standard compatible mobile charging method based on integrated charging requirements, applied to a mobile charging device, includes:

[0007] When the charging gun or charging seat of the mobile charging device is connected to an external EV vehicle or an external charging device, a connection signal will be detected through the corresponding charging interface, and this signal will be transmitted to the micro-control unit. The charging interfaces include European and American standard DC charging seat interfaces, national standard DC charging seat interfaces, European and American standard DC charging gun interfaces, and national standard DC charging seat interfaces;

[0008] Based on the received signal, the micro-control unit identifies the vehicle type and supported charging standards, and at the same time works in coordination with the battery management system to obtain the status information of the battery to be charged;

[0009] Based on the preset charging control strategy and the protocol requirements of different charging standards, the microcontroller unit performs protocol parsing according to the identified charging standard and converts it into a charging protocol supported by the vehicle for adaptation.

[0010] Combined with the status information of the battery to be charged fed back by the battery management system, the microcontroller unit generates an optimal charging strategy, controls the DC-DC converter to perform corresponding voltage conversion and regulation, and outputs the charging current and voltage that meet the vehicle requirements to achieve charging of the battery to be charged.

[0011] The microcontroller unit continuously monitors various parameters of the vehicle during the charging process to ensure normal charging of the battery to be charged. When the battery to be charged is full or the user disconnects the charging gun, the microcontroller unit will receive the corresponding signal and control the charging process to stop.

[0012] When the charging gun of the device is connected to the charging pile, the corresponding charging seat interface will detect the connection signal and transmit the signal to the microcontroller unit. The microcontroller unit and the battery management system work together to complete the charging process of the entire device.

[0013] It should be noted in the solution that the connection signal will be detected through the corresponding charging interface, and each charging interface is connected to components such as the microcontroller unit, the battery management system, and the DC-DC converter through corresponding connection lines to implement functions such as transmission of charging signals, monitoring and control of charging status, etc.

[0014] Furthermore, it is worth noting that each charging interface is connected to components such as the microcontroller unit, the battery management system, and the DC-DC converter through corresponding connection lines, and the connection lines include CP, PP, PE, BDC+, BDC-, A+, CC1, CC2, PE, S+ signal lines and power lines.

[0015] Even further, it should be noted that when working together with the battery management system to obtain the status information of the battery to be charged, the status information of the battery to be charged includes voltage parameters, current parameters, and temperature parameters of the battery to be charged.

[0016] As a preferred implementation manner, the microcontroller unit continuously monitors various parameters of the vehicle during the charging process to ensure normal charging of the battery to be charged, including when the temperature of the battery to be charged exceeds the preset value in the identified charging standard, or the current of the battery to be charged exceeds the preset value in the identified charging standard, or the voltage of the battery to be charged exceeds the preset value in the identified charging standard, then the battery management system stops charging the battery to be charged.

[0017] As a preferred implementation manner, the mobile charging device includes:

[0018] A microcontroller unit, which is responsible for receiving and processing signals from each charging and replenishing interface and the battery management system, and performing logical judgment, protocol parsing and conversion;

[0019] A battery management system, which is used for real-time monitoring and management of the state of the battery to be charged, feeds back relevant information of the battery to be charged to the microcontroller unit, and at the same time receives control instructions from the microcontroller unit to control the charging and discharging of the battery;

[0020] A battery, which is used to provide electrical energy for the mobile charging device, is connected to the battery management system to achieve precise control and protection of the battery charging and discharging process;

[0021] A DC-DC converter, which is responsible for converting and regulating the DC voltage output by the battery to meet the requirements of the vehicle for charging voltage and current under different charging standards;

[0022] The charging interface is provided with European and American standard DC charging socket interfaces, national standard DC charging socket interfaces, European and American standard DC charging gun interfaces, and national standard DC charging socket interfaces, which can adapt to the charging needs of different countries and regions, different types of vehicles and the replenishing needs of charging piles with different standards. The charging interface is connected to the microcontroller unit, the battery management system and the DC-DC converter components through corresponding connection lines to realize functions such as charging signal transmission, charging state monitoring and control.

[0023] Compared with the prior art, a multi-standard compatible mobile charging method based on integrated charging requirements provided by the present invention has at least the following beneficial effects:

[0024] By equipping with a variety of charging interfaces and combining the intelligent control and protocol conversion functions of the microcontroller unit, it can support AC and DC charging methods of multiple mainstream charging standards such as national standard and American standard at the same time, realize the compatibility of multiple charging standards and charging and discharging, meet the charging needs of different countries and regions, different types of vehicles and the replenishing needs of equipment, and greatly improve the versatility and market adaptability of the mobile charging device; by adopting a highly integrated system architecture, integrating key components, optimizing the internal structure layout and connection method, reducing the wiring complexity and fault points, reducing the volume and cost of the device, and at the same time improving the reliability and stability of the implementation of this method, making the mobile charging device easy to carry and install, and better adapting to the application scenario of mobile charging. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic flow chart of the multi-standard compatible mobile charging method of the present invention;

[0026] Figure 2 It is a schematic structural framework diagram of the mobile charging device of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0027] The present invention will be further described below in conjunction with embodiments.

[0028] Referring to Figure 1 As shown, the present invention provides a multi-standard compatible mobile charging method based on integrated charging requirements, including:

[0029] S1. When the charging gun or charging seat of the mobile charging device is connected to an external EV vehicle or external charging device, a connection signal will be detected through the corresponding charging interface, and this signal will be transmitted to the micro-control unit. The charging interfaces include European and American standard DC charging seat interfaces, national standard DC charging seat interfaces, European and American standard DC charging gun interfaces, and national standard DC charging seat interfaces;

[0030] S2. Based on the received signal, the micro-control unit identifies the vehicle type and supported charging standards, and at the same time works in coordination with the battery management system to obtain the status information of the battery to be charged;

[0031] S3. Based on the preset charging control strategy and the protocol requirements of different charging standards, the micro-control unit performs protocol parsing according to the identified charging standard and converts it into a charging protocol adapted to the supported vehicle;

[0032] S4. Combining the status information of the battery to be charged fed back by the battery management system, the micro-control unit generates an optimal charging strategy, controls the DC-DC converter to perform corresponding voltage conversion and regulation, and outputs a charging current and voltage that meet the vehicle requirements to achieve charging of the battery to be charged;

[0033] S5. The micro-control unit continuously monitors various parameters of the vehicle during the charging process to ensure normal charging of the battery to be charged. When the battery to be charged is full or the user disconnects the charging gun, the micro-control unit will receive the corresponding signal and control the charging process to stop;

[0034] S6. When the charging gun of the device is connected to the charging pile, the corresponding charging seat interface will detect the connection signal and transmit this signal to the micro-control unit. The micro-control unit works in coordination with the battery management system to complete the replenishment process of the entire device.

[0035] During the entire replenishment process, the micro-control unit and the battery management system continuously monitor the working status of each part, such as charging current, voltage, battery temperature, etc., to ensure the safety, stability, and efficiency of the charging process.

[0036] The micro-control unit continuously monitors various parameters of the vehicle during the charging process to ensure normal charging of the battery to be charged, including when the temperature of the battery to be charged exceeds the preset value in the identified charging standard, or the current of the battery to be charged exceeds the preset value in the identified charging standard, or the voltage of the battery to be charged exceeds the preset value in the identified charging standard, then the battery management system stops charging the battery to be charged.

[0037] Based on the preset charging control strategy and the protocol requirements of different charging standards, where the charging control strategy is dynamically adjusted according to the real-time state of the battery and the charging demand of the vehicle, and is implemented through the algorithm built in the micro control unit. For vehicles with different charging standards, the micro control unit dynamically adjusts the charging parameters according to the preset charging control strategy to ensure a perfect match between the charging process and the vehicle charging system; among them, different charging standards include multiple charging standards, including but not limited to the national standard AC charging standard, the national standard DC charging standard, the US standard AC charging standard, the US standard DC charging standard, etc., and each charging standard has its specific communication protocol and data format requirements.

[0038] Refer to Figure 2 As shown, the mobile charging device includes:

[0039] A micro control unit (MCU), as the control core of the entire system, is responsible for receiving and processing signals from each charging and replenishing interface and the battery management system components, performing operations such as logical judgment, protocol parsing and conversion, and realizing precise control and management of the charging and replenishing process. It is connected to other components in the system through multiple communication interfaces (such as CAN, DO, etc.) to ensure efficient transmission and interaction of information, and is responsible for receiving and processing signals from each charging and replenishing interface and the battery management system, and performing logical judgment, protocol parsing and conversion;

[0040] A battery management system (BMS) undertakes the task of real-time monitoring and management of the state of the battery to be charged, including the acquisition of voltage parameters, current parameters, and temperature parameters of the battery to be charged, as well as battery balancing control and charge and discharge protection functions. It cooperates closely with the micro control unit, feeds back relevant information of the battery to be charged to the micro control unit, and at the same time receives the control instructions of the micro control unit to ensure that the battery to be charged works in a safe and stable state, and optimizes the charging strategy according to the actual conditions of the battery to be charged;

[0041] A battery, as the energy storage unit of the system, provides electrical energy for the mobile charging device. Through its connection with the battery management system, precise control and protection of the battery charging and discharging process are realized to ensure the efficient utilization and long-life operation of the battery;

[0042] A DC-DC converter (DCDC) is responsible for converting and regulating the DC power output by the battery to meet the requirements of the vehicle for charging voltage and current under different charging standards. It flexibly adjusts the parameters of the output DC power according to the control signal of the micro control unit to realize efficient conversion and transmission of electrical energy, and ensure that a suitable and stable charging power supply is provided to the vehicle battery;

[0043] Charging interface, equipped with a variety of charging interfaces, covering European and American standard DC charging socket interfaces, national standard DC charging socket interfaces, European and American standard DC charging gun interfaces, and national standard DC charging socket interfaces, to adapt to the charging needs of different countries and regions, different types of vehicles and the charging needs of charging pile equipment that meet different standards. Each charging interface is connected to components such as a micro-control unit, a battery management system, and a DC-DC converter through corresponding connection lines (including but not limited to CP, PP, PE, BDC+, BDC-, A+, CC1, CC2, PE, S+ signal lines and power lines) to achieve functions such as the transmission of charging signals, the monitoring and control of charging status, etc.

[0044] According to the above working process, it can be seen that by equipping a variety of charging interfaces and combining the intelligent control and protocol conversion functions of the micro-control unit, it is possible to simultaneously support AC and DC charging methods of multiple mainstream charging standards such as national standards and American standards, achieve compatibility with multiple charging standards and charging and discharging, and meet the charging needs of different countries and regions and different types of vehicles.

[0045] The usage process of the above multi-standard compatible mobile charging method integrated based on charging requirements is as follows:

[0046] During the working process, when the charging gun or charging socket of the mobile charging device is connected to an external EV vehicle or an external charging device, the corresponding charging interface will detect the connection signal and transmit the signal to the micro-control unit;

[0047] The micro-control unit identifies the type of the charging interface and the charging requirements of the vehicle according to the received signal, and at the same time works in coordination with the battery management system to obtain the status information of the battery to be charged;

[0048] The micro-control unit controls the DC-DC converter to perform corresponding voltage conversion and regulation according to the preset charging control strategy and the protocol requirements of different charging standards, so that the system outputs the charging current and voltage that meet the vehicle requirements, and realizes the charging of the battery to be charged;

[0049] During the entire charging process, the micro-control unit continuously monitors the working status of each part to ensure the safety, stability and efficiency of the charging process;

[0050] When the battery is full or the user disconnects the charging gun, the micro-control unit will receive the corresponding signal and control the charging process of the battery to stop;

[0051] When the charging gun of the device is connected to the charging pile, the corresponding charging socket interface will detect the connection signal and transmit the signal to the micro-control unit, and the micro-control unit works in coordination with the battery management system to complete the charging process of the entire device.

[0052] In summary, the advantages of the present invention are as follows: By equipping with multiple charging interfaces and combining the intelligent control and protocol conversion functions of the micro-control unit, it can support both AC and DC charging methods of multiple mainstream charging standards such as the national standard and the American standard at the same time, realizing the compatibility of multiple charging standards and power replenishment and discharge, meeting the charging needs of different types of vehicles in different countries and regions and the power replenishment needs of equipment, and greatly improving the versatility and market adaptability of the mobile charging device; By adopting a highly integrated system architecture, integrating key components, optimizing the internal structure layout and connection methods, reducing the wiring complexity and fault points, reducing the volume and cost of the device, while improving the reliability and stability of the implementation of this method, making the mobile charging device easy to carry and install, and being able to better adapt to the application scenarios of mobile charging.

[0053] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-standard compatible mobile charging method based on integrated charging requirements, characterized in that Applied to a mobile charging device, including: When the charging gun or charging seat of the mobile charging device is connected to an external EV vehicle or an external charging device, a connection signal will be detected through the corresponding charging interface, and this signal will be transmitted to the micro-control unit. The charging interfaces include European and American standard DC charging seat interfaces, national standard DC charging seat interfaces, European and American standard DC charging gun interfaces, and national standard DC charging seat interfaces; Based on the received signal, the micro-control unit identifies the vehicle type and the supported charging standard, and at the same time works in coordination with the battery management system to obtain the status information of the battery to be charged; Based on the preset charging control strategy and the protocol requirements of different charging standards, the micro-control unit performs protocol analysis according to the identified charging standard and converts it into a charging protocol adapted to the supported vehicle; Combined with the status information of the battery to be charged fed back by the battery management system, the micro-control unit generates an optimal charging strategy, controls the DC-DC converter to perform corresponding voltage conversion and regulation, and outputs a charging current and voltage that meet the vehicle requirements to realize the charging of the battery to be charged; The micro-control unit continuously monitors various parameters of the vehicle during the charging process to ensure the normal charging of the battery to be charged. When the battery to be charged is full or the user disconnects the charging gun, the micro-control unit will receive the corresponding signal and control the charging process to stop; When the charging seat of the device is connected to a charging pile, the corresponding charging seat interface will detect the connection signal and transmit this signal to the micro-control unit. The micro-control unit works in coordination with the battery management system to complete the power replenishment process of the entire device.

2. The multi-standard compatible mobile charging method based on charging demand integration according to claim 1, wherein, The connection signal will be detected through the corresponding charging interface. Each charging interface is connected to the micro-control unit, battery management system, and DC-DC converter components through corresponding connection lines to realize functions such as the transmission of charging signals, monitoring, and control of charging status.

3. The multi-standard compatible mobile charging method based on charging demand integration according to claim 2, wherein, Each charging interface is connected to the micro-control unit, battery management system, and DC-DC converter components through corresponding connection lines. The connection lines include CP, PP, PE, BDC+, BDC-, A+, CC1, CC2, PE, S+ signal lines and power lines.

4. A multi-standard compatible mobile charging method based on integrated charging requirements according to claim 3, characterized in that Working in coordination with the battery management system to obtain the status information of the battery to be charged. The status information of the battery to be charged includes voltage parameters, current parameters, and temperature parameters of the battery to be charged.

5. A multi-standard compatible mobile charging method based on integrated charging requirements according to claim 4, characterized in that: The micro-control unit continuously monitors various parameters of the vehicle during the charging process to ensure the normal charging of the battery to be charged. When the temperature of the battery to be charged exceeds the preset value in the identified charging standard, or the current of the battery to be charged exceeds the preset value in the identified charging standard, or the voltage of the battery to be charged exceeds the preset value in the identified charging standard, then the battery management system stops charging the battery to be charged.

6. The multi-standard compatible mobile charging method based on integrated charging requirements according to claim 5, characterized in that The mobile charging device includes: A micro-control unit, responsible for receiving and processing signals from each charging and power replenishment interface and the battery management system, and performing logical judgment, protocol analysis, and conversion; A battery management system, used for real-time monitoring and management of the status of the battery to be charged, feeding back relevant information of the battery to be charged to the micro-control unit, and at the same time receiving control instructions from the micro-control unit to control the charging and discharging of the battery; A battery, which is used to provide electrical energy for a mobile charging device and is connected to a battery management system to achieve precise control and protection of the battery charging and discharging processes; A DC-DC converter, which is responsible for converting and regulating the DC voltage output by the battery to meet the requirements of the vehicle for charging voltage and current under different charging standards; A charging interface, which is provided with European and American standard DC charging socket interfaces, national standard DC charging socket interfaces, European and American standard DC charging gun interfaces, and national standard DC charging socket interfaces, to adapt to the charging needs of different countries and regions, different types of vehicles and the power replenishment needs of charging pile equipment that meet different standards. The charging interface is connected to components such as a micro-control unit, a battery management system, and a DC-DC converter through corresponding connection lines to achieve functions such as transmission of charging signals, monitoring and control of charging status, etc.

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