Portable device for collecting and storing battery data of electric motorcycle

Abstract

A portable device for battery data acquisition and storage of an electric motorcycle comprises a data acquisition module, a data transmission module, a CAN (Controller Area Network) bus data memory and a power supply module, the data acquisition module adopts a female plug comprising two power pins and seven communication pins, the data transmission module adopts a male plug correspondingly connected with the data acquisition module, and the data transmission module exchanges data with the CAN bus data memory through a wiring terminal of a CAN bus. The CAN bus data memory is connected with the power supply module through a power line for charging; the CAN bus data memory is provided with a TF memory card, so that the function of offline data storage processing can be achieved, a large amount of data can be stored, the authenticity of tramcar application data and test data is guaranteed, and the reliability, economical efficiency and safety of a vehicle are improved; the device has the characteristics of simple structure, low cost, stable work and reliable performance.

Description

Technical Field

[0001] The utility model discloses a portable hardware device for data collection and storage, in particular to a portable device for battery data collection and storage of an electric motorcycle. Background Art

[0002] Electric motorcycles are powered by lithium batteries, which are convenient and fast, with low travel costs. At the same time, they relieve urban traffic pressure, improve the quality of life of low-income people, and are energy-saving and environmentally friendly, reducing carbon emissions, which is beneficial to environmental protection. With the support of new energy policies, battery data acquisition and storage devices have emerged. After decades of development, they have the functions of collecting parameters, analysis and storage. However, they are heavily dependent on the vehicle body, expand the hardware connection structure inside the vehicle, and are heavily dependent on software programs, which require professional debugging. These problems lead to high device costs, difficult operation, difficult data fault analysis, and inability to achieve offline storage and analysis of data. From July 1, 2023, GB 42296-2022 "Safety Technical Requirements for Chargers for Electric Bicycles" will be officially implemented. The implementation of the new national standard aims to solve the problems of waste of resources and safety hazards caused by inconsistent charging interfaces, save consumers from the trouble of choosing chargers, and promote the standardization of the charger market. The national standard "2+4" plug has two power pins and four communication pins, and has 485 or CAN communication function, charger enabling function, and charger detection function; but it does not have insulation detection function and data communication ID control function, which causes inconvenience in actual use. Utility Model Content

[0003] In order to overcome the defects of the above-mentioned prior art, the purpose of the utility model is to provide a portable device for battery data collection and storage of electric motorcycles. Through a simple modular connection device, the data transmission failure of the locomotive on the line is solved, the workload of a dedicated person to record and debug a single device is saved, the authenticity of the tram operation data and test data is ensured, and data can be stored based on the locomotive synchronization time information, and it is ensured that the accuracy of the collected signals of the original locomotive battery and the tram control system will not be affected; further, through long-term data collection and tracking, it is helpful to establish a big data quality tracking database for the battery, so as to further improve the data on the remaining mileage, fault diagnosis and life prediction of the tram, and the tram in poor condition will be detained for repair to achieve the purpose of preventive maintenance; the reliability, economy and safety of the vehicle are improved.

[0004] To achieve the above purpose, the technical solution of the utility model is:

[0005] A portable device for battery data collection and storage of electric motorcycles, comprising: a data collection module 1, a data transmission module 2, a CAN bus data storage device 3 and a power module 4; the data collection module 1 adopts a female plug including two power pins and seven communication pins, the data transmission module 2 adopts a male plug corresponding to the data collection module 1 to be connected thereto, the data transmission module 2 exchanges data with the CAN bus data storage device 3 via the CAN bus wiring terminal, and the CAN bus data storage device 3 is connected to the power module 4 via a power line.

[0006] The data acquisition module 2 includes 7 communication interfaces, among which interface ① is a charger enable control interface; interfaces ② and ③ are data ID control interfaces; interface ④ is a battery insulation detection control interface; interface ⑤ is a charger detection control interface; interfaces ⑥ and ⑦ are connected to CAN_H and CAN_L of the CAN bus data storage device 3.

[0007] The data acquisition module 1 has a built-in single chip microcomputer and is connected to a corresponding interface of the data transmission module 2 via pins.

[0008] The CAN bus data storage device 3 has a built-in MCU and is equipped with a TF storage card 5 via an SDIO bus interface.

[0009] The CAN bus data storage device 3 is provided with a USB interface.

[0010] The power module 4 uses a rechargeable lithium-ion battery.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The hardware structure is simple to connect and has the characteristics of plug and play; it is portable and easy to troubleshoot, reducing data transmission failures.

[0013] 2. The new expanded 2+7 charging port adds battery insulation detection and data transmission channels on the basis of the original charger detection and charger enable.

[0014] 3. The CAN bus data storage device is equipped with a TF memory card, which can be used for offline data storage and processing. A new folder will be created every day, which can accurately analyze the specific source of fault data. It has a huge capacity and can store a large amount of data.

[0015] 4. Use rechargeable lithium-ion batteries as uninterruptible UPS power supply to avoid the problem of abnormal data transmission due to power outage in traditional data transmission and storage devices.

[0016] 5. Data can be sent directly to Excel tables without the need for professionals to process them using programs, making it easier to promote.

[0017] In summary, the expanded "2+7" plug of the utility model not only has the above functions, but also has 485 or CAN communication function, charger enabling function, charger detection function, insulation detection function and ID control of data communication, which improves the reliability, economy and safety of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the hardware device for data acquisition and storage.

[0019] Figure 2 This is the connection diagram between the data acquisition module and the data transmission module.

[0020] In the figure, 1. Data acquisition module; 2. Data transmission module; 3. CAN bus data storage; 4. Power module; 5. TF storage card. DETAILED DESCRIPTION

[0021] See also Figure 1 A portable device for battery data collection and storage of electric motorcycles, comprising: a data collection module 1, a data transmission module 2, a CAN bus data storage device 3 and a power module 4; the data collection module 1 adopts a female plug including two power pins and seven communication pins, the data transmission module 2 adopts a male plug corresponding to the data collection module 1 to be connected thereto, the data transmission module 2 exchanges data with the CAN bus data storage device 3 through the CAN bus wiring terminal, and the CAN bus data storage device 3 is connected to the power module 4 through a power line.

[0022] See also Figure 2 The data acquisition module 2 includes 7 communication interfaces, among which interface ① is a charger enable control interface; interfaces ② and ③ are data ID control interfaces; interface ④ is a battery insulation detection control interface; interface ⑤ is a charger detection control interface; interfaces ⑥ and ⑦ are connected to CAN_H and CAN_L of the CAN bus data storage 3.

[0023] The data acquisition module 1 has a built-in single chip microcomputer and is connected to a corresponding interface of the data transmission module 2 via pins.

[0024] The CAN bus data storage device 3 has a built-in MCU and is equipped with a TF storage card 5 via an SDIO bus interface.

[0025] The CAN bus data storage device 3 adopts the GCAN-402 bus data storage device of Guangcheng Technology.

[0026] The CAN bus data storage device 3 is provided with a USB interface for connecting to a host computer to transmit data.

[0027] The TF storage card 5 adopts a high-speed 32-bit processor.

[0028] The power module 4 is an uninterruptible UPS power supply, which uses Yisen rechargeable lithium-ion batteries with a 12V output.

[0029] The data acquisition and storage hardware is plug-and-play, so users can use Yisen rechargeable lithium-ion batteries to power the device, and the USB cable provides +12V power to the bus analyzer.

[0030] The electric vehicle sends battery data and vehicle bus data through the charging interface, including but not limited to battery cell voltage, whole pack voltage, current, battery health status (SOC), vehicle speed and remaining mileage, etc., through the vehicle CAN bus in hexadecimal format. It is sent to the data transmission circuit through the charging port via the CAN bus, and the data transmission circuit is sent to the memory through the OPEN4 terminal. After the data format is converted, it is stored in the built-in TF card.

[0031] The pin definitions of the charging interface are shown in the following table:

[0032]

[0033]

[0034] The electric vehicle charging interface and data transmission circuit only need to connect CAN_H to the bus CAN_H and CAN_L to the bus CAN_L to achieve communication.

[0035] The working principle of the utility model is:

[0036] The data acquisition module 1 is arranged on the body of the electric motorcycle, and the data transmission module 2 is connected to the data acquisition module interface accordingly. The data transmission module 2 is connected to the CAN bus data storage device 3 through the CAN bus to transmit the collected data to the CAN bus data storage device 3. The CAN bus data storage device 3 is equipped with a TF storage card 5, which can play the role of offline data storage and processing. A new folder will be established every day, which can accurately analyze the specific source of the fault data and has a huge capacity. It can store a large amount of data to ensure the authenticity of the electric vehicle operation data and test data; the CAN bus data storage device can also transmit data with the host computer through the USB interface; in addition, the CAN bus data storage device 3 is charged by connecting the power cord to the power module 4; it has portability while improving the reliability, economy and safety of the vehicle.

[0037] The utility model adopts an integrated and serialized design concept, which is suitable for hardware devices for data acquisition and offline storage, and has the characteristics of simple structure, low cost, stable operation and reliable performance, ensuring versatility and making the equipment have good maintainability.

Claims

1. A portable device for collecting and storing battery data of electric motorcycles, include: A data acquisition module (1), a data transmission module (2), a CAN bus data storage device (3) and a power supply module (4); characterized in that: the data acquisition module (1) uses a female plug including two power pins and seven communication pins, the data transmission module (2) uses a male plug corresponding to the data acquisition module (1) to connect thereto, the data transmission module (2) exchanges data with the CAN bus data storage device (3) via the CAN bus connection terminal, and the CAN bus data storage device (3) is connected to the power supply module (4) via a power line.

2. A portable device for collecting and storing battery data of an electric motorcycle according to claim 1, Features: The data acquisition module (1) comprises seven communication interfaces, wherein interface ① is a charger enable control interface; interfaces ② and ③ are data ID control interfaces; interface ④ is a battery insulation detection control interface; interface ⑤ is a charger detection control interface; and interfaces ⑥ and ⑦ are connected to CAN_H and CAN_L of a CAN bus data storage device (3).

3. A portable device for collecting and storing battery data of an electric motorcycle according to claim 1, Features: The data acquisition module (1) has a built-in single-chip microcomputer and is connected to a corresponding interface of the data transmission module (2) via pins.

4. A portable device for collecting and storing battery data of an electric motorcycle according to claim 1, Features: The CAN bus data storage device (3) has a built-in MCU and is equipped with a TF storage card (5) via an SDIO bus interface.

5. A portable device for collecting and storing battery data of an electric motorcycle according to claim 1, Features: The CAN bus data storage device (3) is provided with a USB interface.

6. A portable device for collecting and storing battery data of an electric motorcycle according to claim 1, Features: The power module (4) uses a rechargeable lithium-ion battery.

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