Automobile charging device and system

Abstract

The utility model relates to an automobile charging device and system, which comprises an OBC automobile charging circuit, an original automobile slow charging port connected with the OBC automobile charging circuit, a quick charging controller circuit connected with the original automobile slow charging port, a charging pile connected with the OBC automobile charging circuit through an adapter and used for charging a battery pack, and the OBC automobile charging circuit used for reading the information of the battery pack, and the fast charging controller is connected with the controller high-voltage interface module to charge the battery pack. After the fast charging controller is connected, the OBC vehicle charger does not wake up the charging program of the charger, the OBC vehicle charger is prevented from recording the charging data of the battery pack, the charging data of the fast charging controller is displayed through the instrument panel, the charging speed is increased, charging information is more visual, and the charging efficiency is improved. And meanwhile, a battery detection module is arranged in the quick charging controller to detect information in the charging process of the battery pack, and when the information is detected to be abnormal, the controller intelligently controls the charging pile to stop inputting current, so that a protection effect on charging is achieved.

Description

Technical Field

[0001] The present invention relates to the field of automobile charging, and in particular to an automobile charging device and system. Background Art

[0002] New energy vehicles refer to vehicles that use unconventional vehicle fuels as a power source (or use conventional vehicle fuels and adopt new vehicle power devices), integrate advanced technologies in vehicle power control and drive, and form vehicles with advanced technical principles, new technologies, and new structures. The existing charging reads the battery pack information through OBC and sends it to the charging pile to record the charging data. Once the data is abnormal, charging will be impossible, and in the subsequent maintenance process, the manufacturer will record abnormal data, which will lead to the inability to receive normal maintenance services, and seriously cause damage to the car. At the same time, the AC / DC integrated control principle is difficult to control accurately, and tampering with the original vehicle battery pack BMS data will cause vehicle abnormality risks. If the manufacturer records the charging data of the car, it is necessary to filter and tamper with the signal between the on-board charger OBC and the battery pack BMS, simulating that the charger sends false data to the battery pack, interfering with the normal charging process of the original vehicle, which is a great risk. Summary of the invention

[0003] The technical problem to be solved by the present invention is that the existing charging reads the battery pack information through OBC and sends it to the charging pile to record the charging data. Once the data is abnormal, charging will not be possible, and in the subsequent maintenance process, the abnormal data recorded by the manufacturer will make it impossible to receive normal maintenance services, which will seriously cause damage to the car. In view of the above defects of the prior art, a car charging device and system are provided.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A car charging device is constructed, including an OBC car charging circuit and an original car slow charging port connected to the OBC car charging circuit. The original car slow charging port is connected to a charging pile through an adapter and charges a battery pack. The OBC car charging circuit reads battery pack information and also includes a fast charging controller circuit connected to the original car slow charging port. The fast charging controller is connected to a controller high-voltage interface module to charge the battery pack.

[0006] Preferably, the device also includes a high-voltage distribution box, the high-voltage interface of the controller is connected to the high-voltage distribution box to charge the battery pack, and the OBC vehicle charging circuit quickly charges the battery pack through the high-voltage distribution box.

[0007] Preferably, the device also includes a display circuit connected to the slow charging port of the original vehicle, the OBC vehicle charging circuit reads the battery pack information and displays it on the display module, and the fast charging controller circuit is connected to the display module and displays the battery pack information.

[0008] Preferably, the fast charge controller circuit is connected to the OBC vehicle charging circuit, and when the fast charge controller circuit charges the battery pack, the OBC vehicle charging circuit is disconnected.

[0009] Preferably, the fast charge controller circuit is connected to a charging pile, and when the fast charge controller circuit detects that the battery pack is in an abnormal state, the charging pile stops inputting current to the fast charge controller circuit.

[0010] Constructing a car charging system, including an OBC car charging module, for charging a battery pack and reading and analyzing the data of the battery pack;

[0011] The fast charging controller module is used to provide fast charging for the battery pack and disconnect the charging work of the OBC vehicle charging module during charging.

[0012] Preferably, the system also includes a display module for displaying the information of the battery pack, which includes reading and displaying the information of the battery pack when the OBC car charging module is working, and recording the information during the reading process of the OBC car charging module, and reading and displaying the information of the battery pack when the fast charging controller module is working, and no data is recorded during the display process.

[0013] The beneficial effects of the present invention are as follows: after the fast charging controller is connected, the OBC vehicle charger is disconnected to prevent the OBC vehicle charger from recording the charging data of the battery pack, and the charging data of the fast charging controller is displayed through the instrument panel, which improves the charging speed and makes the charging information more intuitive. At the same time, a battery detection module is set in the fast charging controller to detect the information during the charging process of the battery pack. When the information is abnormal, the controller intelligently controls the charging pile to stop inputting current, which has a protective effect on charging. This technical solution only allows the instrument panel to display the charging screen, and the data sent by the fast charging controller is sent to the display screen without tampering with the OBC core data. In order to ensure the safety of the vehicle's core system and hardware, and because the charging information OBC does not record it, the manufacturer can perform normal maintenance services during repairs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work:

[0015] Figure 1 A schematic diagram of a circuit block diagram of a charging device according to a preferred embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of a fast charging controller according to a preferred embodiment of the present invention;

[0017] Figure 3 Schematic diagram of the structure of a fast charging system according to a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be described clearly and completely in combination with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are partial embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0019] A preferred embodiment of the present invention is a vehicle charging device; Figure 1 As shown, it includes the original car slow charging port and the OBC car charger connected to the original car slow charging port. The original car slow charging port transmits AC power to the OBC car charger, and the OBC car charger rectifies and boosts the voltage to charge the battery pack, and simultaneously reads the battery pack's power parameters and other information during the charging process, as well as the battery temperature and battery input information of the battery pack, and analyzes the read information. The original car slow charging port is connected to the charging pile through the adapter to charge the battery pack. At the same time, in order to display the information read by the OCB car charger, the original car slow charging port is connected to the instrument panel for data transmission so that the battery pack information is displayed through the instrument panel. At the same time, the OBC car charger can fast charge the battery through the high-voltage distribution box.

[0020] Specifically, Figure 1 As shown, the car charging device also includes a fast charging controller, which is connected to the original car slow charging port, so that the original car slow charging port provides input voltage for the fast charging controller through the charging pile connected to the adapter, and the output end of the fast charging controller is connected to the high-voltage interface of the drive controller and connected to the distribution box for fast charging of the battery pack. The fast charging controller simulates the charger to send charging data to the battery to put the battery pack into the charging state, while the OBC car charger does not start the charging program. It should be noted that the on-board charger is not disconnected, but the charging program of the charger is not awakened, and the external discharge program of the charger is still required during fast charging. At the same time, one end of the fast charging controller is connected to the instrument panel through the CAN signal line to read the information of the fast charging controller during the charging process. The fast charging controller can also be directly connected to the charging pile so that the charging pile outputs the current channel of the fast charging controller, and charges the battery pack through the high-voltage interface of the drive controller. At this time, the fast charging controller will bypass the OBC car charger to prevent the information of the battery pack from being read and recorded by the OBC car charger. The fast charge controller and the OBC vehicle charger transmit signals through the CAN line. When the fast charge controller is working, the OBC vehicle charger will be disconnected, and the fast charge controller will be connected to the instrument panel, avoiding the OBC reading the battery pack information and sending it to the charging pile. Figure 2 As shown, the fast charging controller uses the FT60F211 chip to connect the charging interface and to input and output power.

[0021] Furthermore, the display data in the fast charge controller can be displayed on the instrument panel according to the actual charging information of the battery pack, or it can be customized and displayed as needed, so that the battery pack data is read by the fast charge controller and directly displayed on the instrument panel without being recorded. It can also match the corresponding vehicle model data according to different vehicle models, so that the fast charge controller can adapt to different vehicle models for charging.

[0022] A vehicle charging system according to a preferred embodiment of the present invention; Figure 3 As shown, including:

[0023] The OBC car charging module is used to charge the battery pack and read the data of the battery pack and display it on the instrument panel. The OBC car charging module can access the power of the charging pile through the original car slow charging port and perform normal charging for the battery pack after rectification, or perform fast charging for the battery pack through the high-voltage distribution box after rectification and boosting.

[0024] The fast charging controller module is used to provide fast charging for the battery pack, disconnect the OBC car charging module during charging, and display the battery pack data through the dashboard. The fast charging controller module can be directly connected to the charging pile, or connected to the charging pile through the original car slow charging port.

[0025] The display module is used to display the information of the battery pack, which includes reading and displaying the information of the battery pack when the OBC car charging module is working, and recording the information during the reading process of the OBC car charging module, and reading and displaying the information of the battery pack when the fast charging controller module is working, and no data is recorded during the display process.

[0026] Furthermore, when the fast controller module is working, it drives the OBC car charging module to disconnect, and the OBC car charging module does not think that the battery pack is in an uncharged state, while the fast charging controller module displays the charging data of the battery pack through the instrument panel. The displayed information can be customized or set according to the vehicle model. The displayed information includes the battery temperature and the battery voltage increase. When abnormal information is detected, it is sent to the charging pile to stop charging. In this way, the increased voltage is connected to the battery through the fast charging controller module, thereby bypassing the ONC car charging module, hijacking the display interface of the instrument panel, and controlling the information displayed on the instrument panel.

[0027] A preferred embodiment of the present invention provides a method for charging a car; the method includes a fast charging controller accessing an input voltage and then outputting it to a high-voltage interface of a drive controller, and a distribution box quickly charging a battery pack, wherein when the fast charging controller accesses the input voltage, the OBC vehicle charger is disconnected, thereby preventing the OBC vehicle charger from reading the charging information of the battery pack.

[0028] Furthermore, after charging, the fast charging controller reads the battery pack information and sends it to the dashboard for display. When an abnormal charging state is detected, a signal is sent to the charging pile to stop charging. Abnormal charging state includes information such as battery temperature being too high and battery voltage rising too fast, thereby providing safety protection for the fast charging process.

[0029] It should be understood that the present invention is described by some embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A car charging device, comprising an OBC car charging circuit, and an original car slow charging port connected to the OBC car charging circuit, the original car slow charging port is connected to the charging pile through an adapter and charges the battery pack, and the OBC car charging circuit reads the battery pack information, characterized in that: It also includes a fast charging controller circuit connected to the original vehicle's slow charging port, and the fast charging controller is connected to the controller high-voltage interface module to charge the battery pack.

2. The vehicle charging device according to claim 1, characterized in that: The device also includes a high-voltage distribution box, the high-voltage interface of the controller is connected to the high-voltage distribution box to charge the battery pack, and the OBC vehicle charging circuit quickly charges the battery pack through the high-voltage distribution box.

3. The vehicle charging device according to claim 1, characterized in that: The device also includes a display circuit connected to the original vehicle slow charging port. The OBC vehicle charging circuit reads the battery pack information and displays it on the display module. The fast charging controller circuit is connected to the display module and displays the battery pack information.

4. The vehicle charging device according to claim 3, characterized in that: The fast charge controller circuit is connected to the OBC vehicle charging circuit. When the fast charge controller circuit charges the battery pack, the OBC vehicle charging circuit is disconnected.

5. The vehicle charging device according to claim 4, characterized in that: The fast charge controller circuit is connected to the charging pile. When the fast charge controller circuit detects that the battery pack is in an abnormal state, the charging pile stops inputting current to the fast charge controller circuit.

6. A car charging system, characterized in that: Includes an OBC car charger module, which is used to charge the battery pack and read and analyze the battery pack data; The fast charging controller module is used to provide fast charging for the battery pack and disconnect the charging work of the OBC vehicle charging module during charging.

7. The vehicle charging system according to claim 6, characterized in that: The system also includes a display module for displaying battery pack information, which includes reading and displaying the battery pack information when the OBC car charging module is working, and recording the information during the reading process, and reading and displaying the battery pack information when the fast charging controller module is working, and no data is recorded during the display process.

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