Hardware simulation system based on energy storage type charging pile

Abstract

The utility model discloses a hardware simulation system based on an energy storage type charging pile. A DC power supply comprises a power supply 1, a power supply 2 and a power supply 3. The power supply I is electrically connected with the DC-to-DC module I through the relay, and the DC-to-DC module I is electrically connected with the electronic load A; the power supply II is electrically connected with the DC-DC module II through the relay, and the DC-DC module II is electrically connected with the electronic load B; the power supply III is electrically connected with an energy management unit EMS, a remote communication terminal, a battery management unit, a vehicle-mounted diagnosis system, a charging control unit and a power supply equipment communication controller; and a relay is electrically connected between the vehicle-mounted diagnosis system and the charging control unit. The utility model has the advantages that a real and reliable environment can be provided for the research, development, test and verification of the charging pile, the capability of simulating and debugging the working states of different charging piles is provided, and the performance and the stability of the energy storage type charging pile can be verified.

Description

TECHNICAL FIELD

[0001] The utility model relates to charging pile technical field, concretely point to a kind of hardware simulation system based on energy storage type charging pile. BACKGROUND

[0002] With the popularity of new energy vehicles, new energy charging piles have also developed rapidly. Nowadays, energy storage type charging pile is a development trend of new energy charging pile, but because it contains large-capacity battery pack, high-voltage circuit, multiple controllers working at the same time, etc., it is a great test for its research and development and related functional safety testing. Therefore, a test environment is needed to simulate the entire energy storage type charging pile environment, but to test the function and safety of the charging pile in a safe low-voltage environment.

[0003] The energy storage type charging pile hardware simulation environment can test the function of each controller and key device safely and easily. Through automatic script, the simulation environment can automatically perform as expected, and the operation of each controller and whether each executing device is performing the expected operation can be clearly understood.

[0004] The prior art often needs to test on a real charging pile, which has the following shortcomings:

[0005] 1. The correlation between controllers is too great, and single controller cannot be debugged and functionally tested;

[0006] 2. The energy storage type charging pile has high-voltage modules and battery packs for charging and discharging, which can be dangerous to test personnel;

[0007] 3. The real charging pile test cannot clearly understand the operation status of the entire charging pile and the cooperation of each executing device;

[0008] 4. The real charging pile test often needs to be tested in harsh environments.

[0009] The utility model focuses on this and proposes a hardware simulation system based on energy storage type charging pile, aiming to solve the above problems, so that the system can provide a real and reliable environment for the research, testing and verification of charging piles, and has the ability to simulate and debug different charging pile working states, which can be used to verify the performance and stability of energy storage type charging piles. UTILITY MODEL CONTENTS

[0010] In view of the above shortcomings in the prior art, the utility model provides a hardware simulation system based on energy storage type charging pile.

[0011] In order to achieve the above utility model purposes, the utility model adopts the following technical solutions:

[0012] A hardware simulation system based on energy storage charging pile, including a DC power supply,

[0013] The DC power supply includes power supply one, power supply two and power supply three;

[0014] The power supply one is electrically connected with the DC-DC module one through a relay, and the DC-DC module one is electrically connected with an electronic load A;

[0015] The power supply two is electrically connected with the DC-DC module two through a relay, and the DC-DC module two is electrically connected with an electronic load B;

[0016] The power supply three is electrically connected with an energy management unit EMS, a remote communication terminal, a battery management unit, an on-board diagnostic system, a charging control unit and a power supply equipment communication controller, and a relay is electrically connected between the on-board diagnostic system and the charging control unit.

[0017] As an improvement, the remote communication terminal includes a remote communication terminal one TBOX1 and a remote communication terminal two TBOX2;

[0018] The battery management unit includes a battery management unit one BMU1 and a battery management unit two BMU2;

[0019] The charging control unit includes a charging control unit one CCU1 and a charging control unit two CCU2;

[0020] The power supply equipment communication controller includes a power supply equipment communication controller one SECC1 and a power supply equipment communication controller two SECC2.

[0021] As an improvement, the power supply one and the power supply two adopt a safe voltage of 24V DC power supply, and the power supply three adopts a safe voltage of 12V DC power supply.

[0022] As an improvement, a relay is arranged on the live wire and the zero line electrically connected with the DC-DC module one of the power supply one;

[0023] A relay is arranged on the live wire and the zero line electrically connected with the DC-DC module two of the power supply two.

[0024] As an improvement, a relay is electrically connected on the live wire electrically connected with the on-board diagnostic system and the charging control unit.

[0025] Compared with the traditional technology, the advantages of the utility model lie in that:

[0026] The hardware simulation system features a simple and clear layout, making it easy for testers to operate. It can simulate the operating state and functions of a real-world environment. By simulating the battery energy storage, charging, and discharging processes of a charging station, it can improve the performance and reliability of the charging station, as specifically demonstrated below.

[0027] It facilitates controller-level testing for developers;

[0028] This allows testers to simulate the charging and discharging operations of energy storage charging piles in a safe environment.

[0029] It has strong expandability and is easy to replace and repair related components later;

[0030] This allows testers to quickly identify and resolve location issues. Attached Figure Description

[0031] Figure 1 This is a system block diagram of this utility model. Detailed Implementation

[0032] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals.

[0033] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0034] To make the content of this utility model easier to understand, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model.

[0035] Example

[0036] Combined with appendix Figure 1 The DC power supply includes power supply one, power supply two, and power supply three;

[0037] Power supply one and power supply two use a safe voltage of 24V DC power supply, and power supply three uses a safe voltage of 12V DC power supply.

[0038] The power supply is electrically connected to the DC-to-DC module through a relay. The DC-to-DC module is electrically connected to the electronic load A. Relays are provided on both the live wire and the neutral wire of the power supply and the DC-to-DC module.

[0039] The second power supply is electrically connected to the second DC-to-DC module via a relay. The second DC-to-DC module is electrically connected to the electronic load B. Relays are installed on both the live wire and the neutral wire of the connection between the second power supply and the second DC-to-DC module.

[0040] The power supply is electrically connected with an energy management unit EMS, a remote communication terminal TBOX1, a remote communication terminal TBOX2, a battery management unit BMU1, a battery management unit BMU2, an on-board diagnostic system, a charging control unit CCU1, a charging control unit CCU2, a power supply equipment communication controller SECC1 and a power supply equipment communication controller SECC2, and a relay is electrically connected between the on-board diagnostic system and the charging control unit. The hot wire electrically connected with the on-board diagnostic system and the charging control unit is electrically connected with a relay.

[0041] When the system is used, the following steps are specifically included:

[0042] A, determine the target of the simulation environment: first, determine the target of the design of the hardware simulation environment, including the type of simulated charging pile, the specification of battery energy storage, the charging and discharging strategy, etc.

[0043] B, determine the hardware composition: according to the target, determine the required hardware composition, including the simulation of charging pile controller, battery energy storage unit, charger, battery management system, etc., select appropriate hardware equipment, and ensure its mutual compatibility and stable operation.

[0044] C, design the simulation charging pile controller: according to the design specification and functional requirements of the charging pile, design a controller for controlling the charging and discharging process of the charging pile. The controller has high precision and reliability, and can communicate and exchange data with other hardware devices.

[0045] D, design the battery energy storage unit: select appropriate batteries according to the requirements of battery energy storage, and design a battery management system for monitoring and managing the charging and discharging process of the battery. The energy management unit has the functions of battery protection, battery state estimation, charging control, etc.

[0046] E, design the charger and discharging device: according to the charging and discharging strategy, design the corresponding charger and discharging device. The charger has constant current charging or constant voltage charging function, and can be adjusted according to the actual demand. The discharging device can simulate the battery discharging situation and provide appropriate load.

[0047] F, system integration and testing: connect and integrate all hardware components, coordinate the work of each part. Perform system testing, including battery charging and discharging performance testing, charging pile controller performance testing, etc. Ensure that the entire simulation environment can run stably and meet the design requirements.

[0048] The safe voltage 24V DC power supply is used as the battery pack in the simulation environment, and the electronic loads A and B are used as the A gun and B gun of the real energy storage type charging pile to discharge the external load. The 12V DC power supply is the real input voltage of each controller.

[0049] The 12V power supply and the 24V power supply are turned on, each controller is enabled, and a series of initialization and business functions are started. The self-checking operation of the relay is controlled, and it is judged whether the whole simulation environment has a fault. After no fault and self-checking is completed, the hardware simulation environment starts to execute the normal simulation high-voltage state (24V). After the CCV card is swiped, the controller reads the discharge instruction, the internal program executes the discharge operation, the relay in the simulation high-voltage circuit starts to close, the control DC / DC stabilizes the output power required by the electronic load, and the simulation environment starts to normally execute the discharge operation.

[0050] When a fault occurs, it can be judged which problem occurs in the simulation environment by reading the DTC of each controller. The position of the problem point can be directly observed, and the problem point can be quickly repaired or replaced, the unnecessary time of the test personnel is reduced, and the work efficiency is increased.

[0051] When the hardware of the subsequent energy storage type charging pile is changed, each device in the hardware simulation environment can be well replaced, increased or deleted. The repeatability and updating expansibility of the test environment are greatly increased, and the waste of resources is greatly reduced.

[0052] The above only describes the preferred embodiments of the utility model patent, and does not limit the utility model patent. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model patent should be included in the protection scope of the utility model patent.

Claims

1. A hardware simulation system based on energy storage charging pile, comprising a direct current power supply, characterized in that: the direct current power supply comprises a power supply one, a power supply two and a power supply three; the power supply one is electrically connected with a direct current to direct current module one through a relay, and the direct current to direct current module one is electrically connected with an electronic load A; the power supply two is electrically connected with a direct current to direct current module two through a relay, and the direct current to direct current module two is electrically connected with an electronic load B; the power supply three is electrically connected with an energy management unit EMS, a remote communication terminal, a battery management unit, an on-board diagnostic system, a charging control unit and a power supply equipment communication controller, and a relay is electrically connected between the on-board diagnostic system and the charging control unit.

2. The hardware simulation system based on energy storage charging pile according to claim 1, characterized in that: the remote communication terminal comprises a remote communication terminal one TBOX1 and a remote communication terminal two TBOX2; the battery management unit comprises a battery management unit one BMU1 and a battery management unit two BMU2; the charging control unit comprises a charging control unit one CCU1 and a charging control unit two CCU2; the power supply equipment communication controller comprises a power supply equipment communication controller one SECC1 and a power supply equipment communication controller two SECC2.

3. The hardware simulation system based on energy storage charging pile according to claim 1, characterized in that: the power supply one and the power supply two adopt a safe voltage of 24V direct current power supply, and the power supply three adopts a safe voltage of 12V direct current power supply.

4. The hardware simulation system based on energy storage charging pile according to claim 3, characterized in that: a relay is arranged on the live wire and the zero line electrically connected with the direct current to direct current module one of the power supply one; a relay is arranged on the live wire and the zero line electrically connected with the direct current to direct current module two of the power supply two.

5. The hardware simulation system based on energy storage charging pile according to claim 1, characterized in that: a relay is electrically connected on the live wire electrically connected with the on-board diagnostic system and the charging control unit.

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