New energy automobile charging information acquisition device

Abstract

The invention discloses a new energy automobile charging information acquisition device which is mainly composed of a panel and a box body which are connected with each other, and an external expansion unit corresponding to a plurality of signal channels is arranged on the panel or the box body. The device at least comprises a charging pile end interface, a charging vehicle end interface, a DC power supply interface, a charging communication signal interface, a voltage signal interface used for connecting a voltage data collector, a current signal interface used for connecting a current data collector, and a plurality of pin control switches. A circuit module electrically connected with an external expansion unit is arranged in the box body, and a sensor for monitoring voltage and current signals is arranged in the box body. According to industrial standards and mature technologies, under the condition that a charging pile wire harness and a vehicle end charging port are not damaged, charging information between the vehicle and the charging pile is rapidly collected and monitored outside the vehicle in real time, data support is provided for optimization of charging compatibility of the new energy vehicle, and the charging compatibility of the new energy vehicle is improved. Compared with the prior art, the new energy automobile charging information acquisition efficiency can be greatly improved, and the test period is shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicle testing, and in particular to a charging information collection device for a new energy vehicle. Background Art

[0002] Charging piles have many impacts on electric vehicles, including charging efficiency, battery life, safety hazards, system stability, user experience and trust, environmental adaptability, and compliance with laws and regulations. Batteries are one of the main power sources for new energy vehicles, especially pure electric vehicles. Since the charging interaction information between charging piles and new energy vehicles is one of the key information to be focused on during the development and testing of new energy vehicles and charging piles, how to quickly collect the charging interaction information between charging piles and new energy vehicles has become one of the focuses of automobile manufacturers and charging pile manufacturers.

[0003] Generally speaking, when new energy vehicles are charging, data transmission from the charging pile to the vehicle is carried out through the CAN protocol, and what the manufacturer's test personnel want to collect is the CAN message information and the data after the CAN message is parsed. For the charging pile, the existing charging pile and charging gun are integrated, and it is difficult to reliably collect data during charging; for the vehicle, when the fast charging CAN data collection port is led out, the information of the vehicle and the charging pile can only be obtained through the ODB port. For vehicles that cannot obtain DBC (such as competing products used in the pre-factory test phase), only the original messages of the interaction between the vehicle and the charging pile can be collected, and the real-time parsed data cannot be obtained.

[0004] Based on the above situation, the actual way of obtaining charging information of new energy vehicles still has at least the following deficiencies:

[0005] (1) During the test, you need to manually plug in the vehicle's charging port and bring out the fast charging CAN pin before data collection can be performed.

[0006] (2) The wiring harness connection reliability is poor, affecting the test stability.

[0007] (3) Therefore, the wiring harness needs to be modified before each test, which greatly slows down the test efficiency. Summary of the invention

[0008] In view of the above, the present invention aims to provide a new energy vehicle charging information collection device to solve the problem of inconvenience in interactive information collection between the new energy vehicle and the charging pile during the charging process.

[0009] The technical solution adopted by the present invention is as follows:

[0010] The present invention provides a new energy vehicle charging information collection device, comprising: a panel and a box body connected to each other;

[0011] An external expansion unit corresponding to a plurality of electrical signal channels is provided on the panel or on the side wall of the box body, and the external expansion unit at least includes a charging pile end interface, a charging vehicle end interface, a DC power supply interface, a charging communication signal interface, a voltage signal interface for connecting a voltage data collector, a current signal interface for connecting a current data collector, and a plurality of pin control switches;

[0012] A circuit module is arranged in the box body, the circuit module is electrically connected to the external expansion unit, and a voltage sensor and a current sensor are installed on the circuit module.

[0013] In at least one possible implementation manner, a relay corresponding to the charging gun pins at the pile end and the vehicle end is provided in the box body, and the relay is electrically connected to the corresponding pin control switch.

[0014] In at least one possible implementation manner, a stud for fixing the relay is embedded inside the box body.

[0015] In at least one possible implementation manner, a plurality of bosses are extended from the inner side surface of the panel, and the bosses are used to abut against insulating columns in the box body.

[0016] In at least one possible implementation manner, a foot pad mounting hole is configured at the bottom of the box body.

[0017] In at least one possible implementation manner, the panel and the box body are formed by stamping of sheet metal.

[0018] In at least one possible implementation manner, a handle is provided on at least one side of the collecting device.

[0019] In at least one possible implementation manner, the box body is provided with a drawer structure for maintaining components inside the box body.

[0020] Compared with the prior art, the main design concept of the present invention is that it is mainly composed of interconnected panels and box bodies. On the panel or box body, an external expansion unit corresponding to multiple electrical signal channels is provided, and the external expansion unit at least includes a charging pile end interface, a charging vehicle end interface, a DC power supply interface, a charging communication signal interface, a voltage signal interface for connecting a voltage data collector, a current signal interface for connecting a current data collector, and multiple pin control switches; a circuit module electrically connected to the external expansion unit is provided in the box body, and a sensor for monitoring voltage and current signals is provided. In accordance with the industry's common standards and mature technologies, the present invention realizes real-time and rapid collection and monitoring of charging information between the vehicle and the charging pile outside the vehicle without destroying the charging pile wiring harness and the vehicle-end charging port, providing data support for the optimization of charging compatibility of new energy vehicles. Compared with the prior art, it can greatly improve the efficiency of charging information collection for new energy vehicles and shorten the test cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described below with reference to the accompanying drawings, in which:

[0022] Figure 1 A schematic diagram of a new energy vehicle charging information collection device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0023] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.

[0024] The present invention proposes an embodiment of a new energy vehicle charging information collection device. Specifically, Figure 1 As shown, when actually constructing this device, the dimensions of length 400*width 260*height 180mm (excluding the connecting harness) can be used as a reference, and the whole can be divided into two interconnected parts: one is the panel and the other is the box body. In actual connection, twelve through holes with a diameter of 7mm can be opened on the panel and fixed to the box body with M6 bolts.

[0025] On the panel or on the side wall of the box body, an external expansion unit corresponding to a plurality of electrical signal channels may be provided, and the corresponding channel names are preferably printed (in addition to printing the names of the channels for easy operation and identification, a high-voltage hazard mark may also be additionally provided to facilitate electrical safety concerns). In combination with the diagram, for example, in an 18-channel embodiment, the external expansion unit may include a charging pile end interface 1 (i.e., a charging gun socket corresponding to the charging pile), a charging vehicle end interface 11 (i.e., a charging gun socket corresponding to the vehicle, for example, a socket on one side of a double-headed gun, and the other side of the double-headed gun is connected to the DC charging port of the car), a PE grounding terminal 2, a DC+ interface 3 (positive pole of the DC power supply), a DC- interface 4 (negative pole of the DC power supply), and a grounding terminal 5 (positive pole of the DC power supply). ), S+ interface 5 (charging communication CAN_H), S- interface 6 (charging communication CAN_L), CC1 interface 7 (vehicle end connection confirmation), CC2 interface 8 (charging pile end connection confirmation), A+ interface 9 (low voltage auxiliary source positive pole), A- interface 10 (low voltage auxiliary source negative pole), voltage signal interface 14 (connecting voltage data collector for testing charging voltage), current signal interface 15 (connecting current data collector for testing charging current), fault light 16 (for outputting fault prompt with visual signal), power light 17 (for outputting device power-on prompt with visual signal), power switch 18, power input interface 19 and may also include multiple pin control switches 13. Regarding the pin control switch 13 mentioned here, it can be supplemented that in actual application, each pin of the charging gun at the pile end and the vehicle end can be connected in series with a relay (located inside the box body, and turning the corresponding control switch can realize the power on / off of the corresponding relay to realize the contact action), which is used to quickly start and terminate data transmission in the test.

[0026] In addition, a circuit module is fixedly arranged in the box body, the circuit module is connected to the external expansion unit, and a voltage sensor and a current sensor are installed on the circuit module, which are electrically connected to the voltage signal interface 14 and the current signal interface 15 respectively.

[0027] It can also be added to the structure of the present device that a plurality of cylindrical bosses extend from the inner side of the panel, which are used to abut against insulating columns provided in the box body, so as to provide safe and stable support, prevent the panel from being damaged by external squeezing force, and improve the reliability of the panel.

[0028] When actually constructing the device, the panel and the box body can be made by sheet metal stamping to make the overall structure stable. In addition, the main body of the box body can be provided with foot pad openings, studs buried for fixing the aforementioned relay, etc., and in the embodiment of the box body side wall provided with a multi-channel expansion unit mentioned above, multiple openings for laying connection harnesses and connectors can be reserved on both side walls of the box body when manufacturing the device. More preferably, at least one side of the device is provided with a handle 12 for easy use, movement and carrying.

[0029] In addition, in some other embodiments of the present invention, the box body is provided with a drawer structure to facilitate maintenance of the internal components of the box body, and the desiccant placed in the box can be placed and regularly replaced through this drawer structure to maintain a dry environment inside the box body for a longer period of time, which is conducive to safety testing.

[0030] In combination with the above embodiments, a reference introduction to the use of this device is provided here: the gun head of the charging pile can be inserted into the charging pile end interface on the panel of this device, and a double-headed gun can be used on the other side of the panel, one end of the double-headed gun is inserted into the vehicle end interface, and the other end of the double-headed gun is inserted into the DC charging port of the new energy vehicle. Then, the vehicle bus communication harness is connected at the S+ and S- interfaces. Specifically, the connector on the communication harness can be quickly connected to the CAN data transmission harness, for example, a CAN data collector can be connected, and the closing of the control switch can be operated to realize the collection of charging-related message information.

[0031] The voltage sensor inside the device detects the voltage of the charging DC signal, and can output the charging voltage from the corresponding interface on the panel of the device through the circuit module, so as to access the voltage collector, and after operating the corresponding switch, the charging voltage can be collected; similarly, the current sensor inside the device detects the current of the charging DC signal, and can output the charging current from the corresponding interface on the panel of the device through the circuit module, so as to access the current collector, and after operating the corresponding switch, the charging current can be collected. The device of the present invention can safely measure the charging voltage and current signals of serial or different lines at the same time.

[0032] In summary, the main design concept of the present invention is that it is mainly composed of interconnected panels and box bodies, and an external expansion unit corresponding to multiple electrical signal channels is provided on the panel or the box body, and the external expansion unit at least includes a charging pile end interface, a charging vehicle end interface, a DC power supply interface, a charging communication signal interface, a voltage signal interface for connecting a voltage data collector, a current signal interface for connecting a current data collector, and multiple pin control switches; a circuit module electrically connected to the external expansion unit is provided in the box body, and a sensor for monitoring voltage and current signals is provided. The present invention is in accordance with the industry's common standards and mature technologies, and without damaging the charging pile wiring harness and the vehicle-end charging port, it can realize real-time and rapid collection and monitoring of charging information between the vehicle and the charging pile outside the vehicle, providing data support for the optimization of charging compatibility of new energy vehicles, and can greatly improve the efficiency of new energy vehicle charging information collection and shorten the test cycle compared to the existing technology.

[0033] If the expressions expressing orientation are mentioned in the embodiments of the present invention, they are relative concepts based on the embodiments. In addition, "at least one" means one or more, and "plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent the existence of A alone, the existence of A and B at the same time, and the existence of B alone. Among them, A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b and c can be represented by: a, b, c, a and b, a and c, b and c, or a and b and c, wherein a, b, c can be single or multiple.

[0034] The above describes in detail the structure, features and effects of the present invention based on the embodiments shown in the drawings, but the above is only a preferred embodiment of the present invention. It should be noted that the technical features involved in the above embodiments and their preferred methods can be reasonably combined and matched into a variety of equivalent schemes by those skilled in the art without departing from or changing the design ideas and technical effects of the present invention; therefore, the present invention is not limited to the scope of implementation shown in the drawings, and all changes made in accordance with the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the specification and drawings, should be within the protection scope of the present invention.

Claims

1. A new energy vehicle charging information collection device, characterized in that: include: Interconnected panels and boxes; An external expansion unit corresponding to a plurality of electrical signal channels is provided on the panel or on the side wall of the box body, and the external expansion unit includes at least a charging pile end interface, a charging vehicle end interface, a DC power supply interface, a charging communication signal interface, a voltage signal interface for connecting a voltage data collector, a current signal interface for connecting a current data collector, and a plurality of pin control switches; A circuit module is arranged in the box body, the circuit module is electrically connected to the external expansion unit, and a voltage sensor and a current sensor are installed on the circuit module.

2. The new energy vehicle charging information collection device according to claim 1, characterized in that: The box body is provided with relays corresponding to the charging gun pins at the pile end and the vehicle end, and the relays are electrically connected to the corresponding pin control switches.

3. The new energy vehicle charging information collection device according to claim 2, characterized in that: A stud for fixing the relay is buried inside the box body.

4. The new energy vehicle charging information collection device according to claim 1, characterized in that: A plurality of bosses are extended from the inner side surface of the panel, and the bosses are used to abut against the insulating columns in the box body.

5. The new energy vehicle charging information collection device according to claim 1, characterized in that: A foot pad mounting hole is arranged at the bottom of the box body.

6. The new energy vehicle charging information collection device according to claim 1, characterized in that: The panel and the box body are made by stamping sheet metal.

7. The new energy vehicle charging information collection device according to claim 1, characterized in that: A handle is provided on at least one side of the collecting device.

8. The new energy vehicle charging information collection device according to any one of claims 1 to 7, characterized in that: The box body is provided with a drawer structure for maintaining the internal parts of the box body.

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