阅读说明：本技术 电动汽车应急供电系统及包含其的电动汽车 (Electric automobile emergency power supply system and contain its electric automobile ) 是由 侯荣 于 2020-06-16 设计创作，主要内容包括：本发明的实施方式提供一种电动汽车应急供电系统,所述电动汽车内部包括充电部件,所述充电部件用于所述电动汽车的充电管理；所述供电系统还包括：电源接口,与所述充电部件相连；当所述电源接口外接低压电源时,所述充电部件启动并初始化,使所述电动汽车变为可被高压充电状态。同时还公开了一种包含前述的电动汽车应急供电系统的电动汽车。本发明的实施方式解决了电动汽车在亏电情况下无法进行充电初始化的问题,适用于多种类型的电动汽车。(The embodiment of the invention provides an emergency power supply system of an electric automobile, wherein the electric automobile internally comprises a charging component, and the charging component is used for charging management of the electric automobile; the power supply system further includes: a power interface connected to the charging member; when the power interface is externally connected with a low-voltage power supply, the charging component is started and initialized, so that the electric automobile becomes a state capable of being charged by high voltage. Simultaneously still disclose the electric automobile who contains aforementioned electric automobile emergency power supply system. The embodiment of the invention solves the problem that the electric automobile cannot be charged and initialized under the condition of power shortage, and is suitable for various types of electric automobiles.)

1. An electric automobile emergency power supply system comprises a charging component inside the electric automobile, wherein the charging component is used for charging management of the electric automobile; characterized in that the power supply system further comprises:

a power interface connected to the charging member; when the power interface is externally connected with a low-voltage power supply, the charging component is started and initialized, so that the electric automobile becomes a state capable of being charged by high voltage.

2. The power supply system of claim 1, wherein the charging component comprises an on-board charger, a battery management system, and a dc transformer.

3. The power supply system of claim 1, wherein the charging component is coupled to the power interface via one of two-way power distribution.

4. The power supply system according to claim 1, wherein a charging port cover is disposed at a position of the vehicle body corresponding to the power interface, and the charging port cover is used for covering the power interface.

5. The power supply system according to claim 4, wherein the open/close state of the charging port cover is controlled by a vehicle body controller of the electric vehicle; when the automobile body controller detects that electric automobile is in the insufficient voltage state, opens the flap that charges to supply the low voltage power inserts.

6. The power supply system of claim 1, further comprising an identity authentication component for verifying an owner identity;

the power interface is also connected with the identity authentication part; when the power interface is externally connected with a low-voltage power supply, the identity authentication part is started and initialized, so that the electric automobile becomes an identity verification state.

7. The power supply system according to claim 6, wherein the identity authentication means includes: one or more of a Bluetooth module, an NFC module and a cloud service function module.

8. The power supply system of claim 6, wherein the power connection between the power interface and the authentication component is maintained for only a preset length of time.

9. The power supply system of claim 1, wherein said power supply interface is provided with an overload protection circuit for preventing the input voltage from exceeding a set voltage threshold.

10. An electric vehicle, characterized in that the electric vehicle comprises the electric vehicle emergency power supply system of any one of claims 1 to 9.

Technical Field

The invention relates to the field of electric automobiles, in particular to an electric automobile emergency power supply system and an electric automobile comprising the same.

Background

During the parking process of the vehicle, part of the equipment is still in a standby state and consumes the electric energy in the low-voltage battery. But after the parking time is too long, the electric quantity in the low-voltage battery for supplying energy is completely exhausted, and the low-voltage battery enters a power shortage state. If the user wants to insert a charging gun to charge the high-voltage battery of the vehicle, the user has many problems that the vehicle is not ready for high-voltage charging. Adopt independent access hole like electric automobile tesla etc. if when the vehicle takes place the insufficient voltage, can take out external power supply from this access hole and reserve the interface, open front hatch lid behind the circular telegram, but the defect that this mode exists is: illegal opening of the front hatch may result in the loss of vehicle front hatch items.

Disclosure of Invention

The invention aims to provide an electric automobile emergency power supply system and an electric automobile comprising the same, and aims to solve the problem that the charging process of the conventional electric automobile cannot be started in a power-loss state.

In order to achieve the above object, a first aspect of the present invention provides an emergency power supply system for an electric vehicle, the electric vehicle including a charging component inside, the charging component being used for charging management of the electric vehicle; the power supply system further includes:

a power interface connected to the charging member; when the power interface is externally connected with a low-voltage power supply, the charging component is started and initialized, so that the electric automobile becomes a state capable of being charged by high voltage.

Preferably, the charging component comprises a vehicle-mounted charger, a battery management system and a direct current transformer.

Preferably, the charging member is connected to the power supply interface through one of two-way power distribution.

Preferably, the vehicle body position that power source corresponds is provided with the flap that charges, the flap that charges is used for hiding power source.

Preferably, the open/close state of the charging port cover is controlled by a vehicle body controller of the electric vehicle; when the automobile body controller detects that electric automobile is in the insufficient voltage state, opens the flap that charges to supply the low voltage power inserts.

Preferably, the power supply system further comprises an identity authentication component, and the identity authentication component is used for verifying the identity of the owner of the vehicle;

the power interface is also connected with the identity authentication part; when the power interface is externally connected with a low-voltage power supply, the identity authentication part is started and initialized, so that the electric automobile becomes an identity verification state.

Preferably, the identity authentication means includes: one or more of a Bluetooth module, an NFC module and a cloud service function module.

Preferably, the power supply connection between the power interface and the identity authentication component is maintained for only a preset time.

Preferably, the power interface is provided with an overload protection circuit for preventing the input voltage from exceeding a set voltage threshold.

In a second aspect of the invention, an electric vehicle is also provided, and the electric vehicle comprises the electric vehicle emergency power supply system.

The technical scheme provided by the invention can effectively help a user or a maintenance worker to solve the problem that the charging initialization cannot be completed and further charging cannot be performed due to the insufficient power of the battery. The technical scheme provided by the invention is simple and convenient, additional manpower and material resources are not needed, the economic benefit and time cost of a user are saved, great convenience is provided for the user, and the invention adopts a simple circuit structure, reduces the occupied space in the vehicle, thereby effectively reducing the vehicle weight and hardware cost, being beneficial to wide popularization on various vehicle types and having better benefit.

Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:

fig. 1 is a block diagram of an emergency power supply system of an electric vehicle according to an embodiment of the invention;

fig. 2 is a block diagram of an emergency power supply system of an electric vehicle including an identity authentication unit according to an embodiment of the present invention.

Detailed Description

In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.

Fig. 1 is a block diagram of an emergency power supply system of an electric vehicle according to an embodiment of the present invention. As shown in fig. 1, the solid lines in the figure are power supply connections and the dashed lines are signal connections. This embodiment provides an electric automobile emergency power supply system, power supply system includes:

the power supply interface is connected with a charging component inside the electric automobile; and the charging component is used for charging management of the electric automobile; when the power interface is externally connected with a low-voltage power supply, the charging component is started and initialized, so that the electric automobile becomes a state capable of being charged by high voltage.

So, the problem that current electric automobile's low voltage battery can't start under insufficient voltage state has been solved. The electric automobile comprises a pure electric automobile, a plug-in hybrid electric automobile and other chargeable automobiles. When the low-voltage battery and the high-voltage battery of the electric automobile are in a power-shortage state at the same time and the mechanical key is not nearby, the electric automobile cannot be charged at the moment. The charging module is in a power-deficient state, and effective identification and implementation of a handshaking protocol cannot be performed even if the charging gun is inserted. The present embodiment thus changes the necessary charging means to a two-circuit configuration in which the backup power supply branch is arranged at the reserve power supply port. When electric automobile was in the insufficient voltage state, user or maintenance person only need provide an external low voltage power supply source (for example treasured that charges) and insert this power source to provide the reserve low voltage power supply to the part that charges, make these charging parts reach an initial condition, then insert the rifle that charges to the socket that charges, charging module BMS can discern the protocol of charging, and according to the protocol of shaking hands of charging, electric automobile's the initialization process that charges up to this moment is accomplished, the vehicle receives the charging of the rifle that charges, gets into the charged state.

In one embodiment provided by the invention, the charging component comprises a vehicle-mounted charger, a battery management system and a direct current transformer. An on-board battery charger (OBC), a Battery Management System (BMS), and a direct current transformer (DCDC) belong to core components for vehicle charging management, and are respectively used for implementation of a charging process, state management of a battery, and conversion control of a charging current. The three modules belong to the necessary components of the charging process and their starting voltage is low. This embodiment increases the three module of OBC, BMS, DCDC and is the double-circuit distribution, wherein reserves a set of low voltage power cord to reserving the power mouth, when the vehicle took place the insufficient voltage, can provide three module through supplying low pressure 12V this moment, then whole car can insert the rifle and charge, when treating that the vehicle breaks away from insufficient voltage state, can open the vehicle through legal key. Through reserving the two-way power supply for the three modules, the identity and the legality of the vehicle can not be confirmed and processed, the authentication information of the legal identity of the vehicle is omitted, the processing mode is simplified, and the effect of unlocking by opening the door is achieved.

In an embodiment provided by the invention, a charging port cover is arranged at a position of the vehicle body corresponding to the power interface, and the charging port cover is used for covering the power interface. The effect that sets up the flap that charges among this embodiment is similar with the oil tank flap of ordinary car, not only does benefit to the pleasing to the eye of whole automobile body, still prevents illegally to open, is favorable to the security of whole vehicle. Further, the open/close state of the charging port cover is controlled by a vehicle body controller of the electric vehicle, and the vehicle body controller is configured to: when detecting electric automobile is in the insufficient voltage state, opens the flap that charges to supply the low voltage power inserts. Under the normal condition, the flap that charges is controlled by automobile body controller, is in the closed condition, and detects as automobile body controller electric automobile is in when insufficient voltage state, need open this flap that charges automatically, makes power source expose, and low voltage power supply inserts through this power source and supplies power for aforementioned part that charges to make its normal start. Through setting up the flap that charges and connecting it with automobile body controller, increased the closure and the security of electric automobile interface, avoided the risk that illegal opening caused.

Fig. 2 is a block diagram of an emergency power supply system of an electric vehicle including an identity authentication unit according to an embodiment of the present invention. As shown in fig. 2, the solid lines in the figure are power supply connections and the dashed lines are signal connections. In an embodiment provided by the present invention, the power supply system further includes an identity authentication component, where the identity authentication component is used to verify the identity of a vehicle owner; the power interface is also connected with the identity authentication part; when the power interface is externally connected with a low-voltage power supply, the identity authentication part is started and initialized, so that the electric automobile becomes an identity verification state. The embodiment mainly provides the emergency power supply for temporarily supplying power to the charging component so as to enable the charging component to reach an initial working state, and the embodiment mainly provides the emergency power supply for an identity authentication component of the electric automobile so as to enable the electric automobile to perform basic identity recognition, communicate with an automobile body controller after identity information is confirmed and issue an instruction for opening an automobile door lock, so that opening and closing permissions of an automobile door and an automobile window in a power-loss state are provided for further processing of the automobile by a user or a maintainer. In the embodiment, the identity authentication part is supplied with power by adopting the external power supply, so that the safety of identity verification of the vehicle in a power-deficient state is kept, and compared with a power supply mode in other power-deficient states, the embodiment has the advantage of high response speed.

Further, the identity authentication means includes: one or more of a Bluetooth module, an NFC module and a cloud service function module. In the prior art, authority verification of a vehicle is mostly completed by adopting modes such as authentication and encryption, and the modes are mainly based on communication modes such as Bluetooth communication, NFC communication and cloud service remote service communication. A user or maintenance personnel needs to provide an external low-voltage power supply to access a standby low-voltage power supply, then uses the functions of mobile phone Bluetooth, NFC and cloud service to identify, communicates with a vehicle body controller after identity information is confirmed, and issues an instruction for opening a vehicle door lock.

In an embodiment of the present invention, the power connection between the power interface and the identity authentication component is maintained only for a preset time. Considering the battery capacity and the discharge power of the external backup power supply, the external backup power supply mainly supplies electric energy to the charging component, and considering that the actual working process of the identity authentication component is short, and the long-time standby state is not beneficial to the reasonable utilization of limited electric energy, so the operation is only suitable for the operation of opening the vehicle in a short time. In specific implementation, a timer can be adopted for control, the preset time can be 30 seconds, and after the 30 seconds, the power supply to the identity authentication part is stopped so as to save electric energy.

In one embodiment of the present invention, the power interface is provided with an overload protection circuit for preventing the input voltage from exceeding a set voltage threshold. In the present embodiment, it is preferable that the 12V power supply supplies power, and the 12V setting enables most mobile power supplies to meet the requirements, so that the present solution has more application scenarios. When the input voltage is higher than 12V, it needs to be protected to prevent the internal components from being damaged by high voltage impact. Further, a voltage conversion circuit can be arranged according to the needs of actual scenes, and the input high voltage is reduced to 12V, or the input low voltage is reduced to 12V. In the embodiment, the overload protection circuit is added, so that the electrical safety of the power supply system is improved.

In an embodiment provided by the invention, the electric vehicle is also provided, and the types of the electric vehicle comprise a pure electric vehicle, a plug-in hybrid electric vehicle and other chargeable vehicles, and the electric vehicle comprises the electric vehicle emergency power supply system. This power supply system is applied to electric automobile, only needs to carry out following simple transformation to this electric automobile: and (3) adding three modules (OBC, BMS and DCDC) for double-path power distribution, wherein a group of low-voltage power lines are reserved to the existing reserved power ports. If the electric automobile does not reserve the power interface, a new access hole is required to be added for setting the power interface. And the three modules do not relate to the identity and the legality confirmation and processing of the vehicle, so that the authentication information of the legal identity of the vehicle is omitted, and the safety of the vehicle is ensured.

According to the technical scheme, the vehicle-mounted charger, the battery management system and the direct-current transformer are subjected to double-path power distribution, and a group of low-voltage power lines are reserved to a reserved power port. When the vehicle is in power shortage, the whole vehicle strategy opens the charging port cover and the reserved power port in advance, and the low voltage 12V can be supplied to the three modules, so that the initialization of the charging process is realized. The invention is simple to implement, convenient to use and has wide application scenes.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). The memory is an example of a computer-readable medium.

Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.

The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.