CN111546908A

CN111546908A - Charging parking control method and device for new energy automobile

Info

Publication number: CN111546908A
Application number: CN202010473924.9A
Authority: CN
Inventors: 周林; 伍斌; 周守刚; 朱亚伟; 熊恩林
Original assignee: Chongqing Branch of DFSK Motor Co Ltd
Current assignee: Chongqing Branch of DFSK Motor Co Ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2020-08-18

Abstract

The application relates to a charging parking control method and device for a new energy automobile, wherein the method comprises the following steps: acquiring an ignition switch signal and a charging induction signal; judging whether to awaken the vehicle control unit or not according to the ignition switch signal and the charging induction signal; acquiring the current working state of a parking controller through a vehicle controller; and controlling a parking controller of the vehicle according to the charging induction signal and the working state. According to the scheme, the charging parking function is realized through the logic control of software, so that the automobile is in a parking state in the charging state, and the safety is enhanced; after the method of the scheme is applied, other hardware structures for parking control can be omitted, and the method is more economical and practical.

Description

Charging parking control method and device for new energy automobile

Technical Field

The application relates to the technical field of new energy vehicles, in particular to a charging parking control method and device of a new energy vehicle.

Background

With the continuous development of new energy industry, the attention degree of society to new energy automobiles is continuously deepened. With the development of charging technology and battery technology and the popularization and construction of infrastructure such as charging piles, the acceptance of the public on new energy automobiles is continuously increased. It is well known that conventional automobiles require a flameout when refueled. Similarly, the vehicle needs to be ensured to be flamed out and parked in the charging process so as to ensure the charging safety. However, the charging process of the new energy automobile usually needs to be continued for a long time, so that the vehicle is easy to be moved or started carelessly, and how to ensure that the vehicle is always in a parking state in the charging process is an important subject to be researched.

In the related art, an electric control system capable of realizing charging and parking is not available on the existing new energy automobile, and the automobile cannot be guaranteed to be in a complete parking state during charging.

Disclosure of Invention

In order to overcome the problems in the related art at least to a certain extent, the application provides a charging parking control method and device for a new energy automobile.

According to a first aspect of the embodiments of the application, a charging parking control method for a new energy automobile is provided, which includes:

acquiring an ignition switch signal and a charging induction signal;

judging whether to awaken the vehicle control unit or not according to the ignition switch signal and the charging induction signal;

acquiring the current working state of a parking controller through a vehicle controller;

and controlling a parking controller of the vehicle according to the charging induction signal and the working state.

Further, judge according to ignition switch signal and the induction signal that charges whether awaken vehicle control unit, include:

and when the ignition switch signal is turned off and the charging induction signal is detected, waking up the vehicle control unit.

Further, awakening the vehicle control unit comprises:

when the charging induction signal is detected, the whole vehicle controller is awakened through the battery management system;

and the parking controller is awakened through the whole vehicle controller.

Further, the acquiring the current working state of the parking controller through the vehicle controller includes:

and the vehicle control unit judges whether the current working state of the parking controller is the parking state.

Further, the controlling the parking controller of the vehicle according to the charging sensing signal and the working state includes:

when the charging induction signal is detected and the working state is not the parking state, the whole vehicle controller controls the parking controller to execute a clamping action.

Further, the vehicle control unit controls the parking controller to perform a clamping action, including:

the whole vehicle controller sends a parking request to the parking controller through the CAN network so as to enable the parking controller to execute a clamping action.

when the charge induction signal is not detected or the operating state is the parking state, no control is performed.

According to a second aspect of the embodiments of the present application, there is provided a charging parking control device for a new energy vehicle, including:

the first acquisition module is used for acquiring an ignition switch signal and a charging induction signal;

the judging module is used for judging whether to awaken the whole vehicle controller according to the ignition switch signal and the charging induction signal;

the second acquisition module is used for acquiring the current working state of the parking controller through the whole vehicle controller;

and the execution module is used for controlling a parking controller of the vehicle according to the charging induction signal and the working state.

According to a third aspect of embodiments of the present application, there is provided a computer apparatus comprising:

a memory for storing a computer program;

a processor for executing the computer program in the memory to implement the operational steps of the method according to any of the above embodiments.

According to a fourth aspect of embodiments of the present application, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the operational steps of the method according to any one of the above embodiments.

The technical scheme provided by the embodiment of the application has the following beneficial effects:

according to the scheme, the charging parking function is realized through the logic control of software, so that the automobile is in a parking state in the charging state, and the safety is enhanced; after the method of the scheme is applied, other hardware structures for parking control can be omitted, and the method is more economical and practical.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.

Fig. 1 is a flowchart illustrating a charging parking control method of a new energy vehicle according to an exemplary embodiment.

Fig. 2 is a logic flow diagram illustrating control of a new energy vehicle according to an exemplary embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of methods and apparatus consistent with certain aspects of the present application, as detailed in the appended claims.

Fig. 1 is a flowchart illustrating a charging parking control method of a new energy vehicle according to an exemplary embodiment. The method may comprise the steps of:

step S1: acquiring an ignition switch signal and a charging induction signal;

step S2: judging whether to awaken the vehicle control unit or not according to the ignition switch signal and the charging induction signal;

step S3: acquiring the current working state of a parking controller through a vehicle controller;

step S4: and controlling a parking controller of the vehicle according to the charging induction signal and the working state.

The following describes the scheme of the present application in an expanded manner with reference to a specific application scenario.

To realize the charging and parking control method of the application, the following associated electronic control units are required to work in a matched manner: a Vehicle Control Unit (VCU), an electronic parking controller (EPB), a Battery Management System (BMS), an Instrument (IC), a push-to-Start key (PEPS), and the like.

By combining the related electric control unit, the charging parking scene can be identified.

In the new energy automobile, an ignition signal (IGN, ignition switch) of an EPB is connected with a VCU through a hard wire, so that the VCU CAN independently control IGN electric input of the EPB, CAN signal identification of a VCU _ mode of the whole automobile is added on the basis that the EPB receives the IGN electric hard wire input, and the following three working states of the whole automobile are determined:

state 1: the IGN hard wire input and whole vehicle VCU working mode is as follows: normal mode, when EPB is in normal full function state. State 2: and the IGN is in a hard-wire input mode, the VCU working mode of the whole vehicle is not normal mode, and the EPB enters a charging parking mode. State 3: IGN hard line does not have the input, and the whole car power is down promptly.

Referring to fig. 2, when the method is implemented, the IGN state of the entire vehicle needs to be determined first, and the IGN state is different, and the subsequent logic processing flows are also different. If the IGN state is OFF, the VCU is required to be awakened first, and then the subsequent process is executed; if the IGN state is ON, it indicates that the VCU does not need to be awakened and can directly operate.

In some embodiments, the determining whether to wake up the vehicle control unit according to the ignition switch signal and the charging sensing signal includes:

Referring to fig. 2, the control flow of the EPB in response to the charge parking is divided into two cases.

First, vehicle IGN OFF:

referring to fig. 2, the charging port cover is opened, the charging gun is inserted, the charging gun sensor detects a reliable physical signal inserted into the charging gun, the physical signal is converted into an electrical signal to be transmitted to the BMS module, and the BMS transmits the signal to the VCU through a hard wire, thereby waking up the VCU. The VCU wakes up the EPB through the accessory relay after waking up, at this moment, the VCU CAN monitor whether the current EPB state is the Parking state, if not, the VCU CAN send a Parking Request 'VCU _ Parking Request to EPB' through the CAN network, and the EPB realizes automatic Parking after receiving the Request. Under this condition, the EPB will make diagnostic inhibition and not diagnose the other controllers.

In some embodiments, the waking up the vehicle control unit includes:

and the parking controller is awakened through the whole vehicle controller.

In some embodiments, the obtaining, by the vehicle controller, the current operating state of the parking controller includes:

In some embodiments, the controlling a parking controller of a vehicle according to the charging sensing signal and the operating state includes:

In the second case, the entire train IGN ON:

referring to fig. 2, after the charging port cover is opened and the charging gun is inserted, the VCU operation mode of the entire vehicle is changed to a non-normal mode. At the moment, the VCU monitors whether the current EPB is in a Parking state, if not, the VCU sends a Parking Request 'VCU _ Parking Request to EPB' through the CAN network, and the EPB realizes automatic Parking after receiving the Request. Under this condition, EPB also performs diagnostic inhibition, and does not diagnose other controllers.

In some embodiments, the vehicle control unit controls the parking controller to perform a clamping action, including:

That is, if it is found that the vehicle is being charged and the EPB is not in the parking state, the EPB is controlled to perform a clamping action to achieve parking and then the charging is started; if the EPB is originally in the parking state, the control is not performed, and the charging is directly started. The scheme of this application is for guaranteeing that new energy automobile can be in the parking state completely when charging, increases the parking electrical system that charges, guarantees that when the charged state, the car is in the parking state, guarantees the parking security.

The scheme of this application can accomplish the parking control that charges through the mutual cooperation of electrical control units such as the existing VCU of vehicle, EPB, BMS, need not add other parking control hardware equipment, has saved the hardware cost, and is more economical, practical.

The application still provides a new energy automobile's parking controlling means that charges, the device includes:

With regard to the apparatus in the above embodiment, the specific steps in which the respective modules perform operations have been described in detail in the embodiment related to the method, and are not described in detail herein. All or part of each module in the data cache processing device can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.

The present application further provides a computer device, comprising:

a memory for storing a computer program;

a processor for executing the computer program in the memory to realize a charging parking control method of the new energy automobile: acquiring an ignition switch signal and a charging induction signal; judging whether to awaken the vehicle control unit or not according to the ignition switch signal and the charging induction signal; acquiring the current working state of a parking controller through a vehicle controller; and controlling a parking controller of the vehicle according to the charging induction signal and the working state.

The present application also provides a computer-readable storage medium having a computer program stored thereon, the computer program, when executed by a processor, implementing a method for controlling charging and parking of a new energy vehicle: acquiring an ignition switch signal and a charging induction signal; judging whether to awaken the vehicle control unit or not according to the ignition switch signal and the charging induction signal; acquiring the current working state of a parking controller through a vehicle controller; and controlling a parking controller of the vehicle according to the charging induction signal and the working state.

It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.

It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present application, the meaning of "a plurality" means at least two unless otherwise specified.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.

It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.

In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims

1. A charging parking control method of a new energy automobile is characterized by comprising the following steps:

acquiring an ignition switch signal and a charging induction signal;

2. The method of claim 1, wherein the determining whether to wake up the vehicle control unit according to the ignition switch signal and the charging sensing signal comprises:

3. The method of claim 2, wherein waking up the vehicle control unit comprises:

and the parking controller is awakened through the whole vehicle controller.

4. The method according to any one of claims 1-3, wherein the obtaining, by the vehicle control unit, the current operating state of the vehicle control unit comprises:

5. The method of claim 4, wherein controlling a parking controller of the vehicle according to the charging sensing signal and the operating state comprises:

6. The method of claim 5, wherein the vehicle control unit controls the parking controller to perform a clamping action, comprising:

7. The method of claim 4, wherein controlling a parking controller of the vehicle according to the charging sensing signal and the operating state comprises:

8. The utility model provides a new energy automobile's parking controlling means that charges which characterized in that includes:

9. A computer device, comprising:

a memory for storing a computer program;

a processor for executing the computer program in the memory to carry out the operational steps of the method of any one of claims 1 to 7.

10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the operational steps of the method of one of claims 1 to 7.