CN110696809B

CN110696809B - Vehicle locking control method and system, vehicle and storage medium

Info

Publication number: CN110696809B
Application number: CN201910963332.2A
Authority: CN
Inventors: 衣冠超; 王秀鹏; 丁仲远; 胡金蕊; 刘辉; 王浩; 高远金
Original assignee: FAW Jiefang Automotive Co Ltd; FAW Jiefang Qingdao Automobile Co Ltd
Current assignee: FAW Jiefang Automotive Co Ltd; FAW Jiefang Qingdao Automobile Co Ltd
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2021-03-12
Anticipated expiration: 2039-10-11
Also published as: CN110696809A

Abstract

The invention discloses a vehicle locking control method, a vehicle locking control system, a vehicle and a storage medium, and belongs to the technical field of vehicle control. Wherein, the method comprises the following steps: s1, judging whether a vehicle locking instruction is received, if so, recording the current gear as a memory gear, monitoring the current gear in real time, and jumping to S2; s2, judging whether the clutch is in a treading state, if not, jumping to S3; s3, judging whether the current gear is less than or equal to the lowest limited gear, if so, not limiting the engine torque, and if not, jumping to S4; and S4, judging whether the current gear is less than or equal to the memory gear, if so, not limiting the engine torque, updating the memory gear to the current gear, and if not, limiting the engine torque to maintain the idle speed. According to the invention, the mode that different gears limit the torque of the engine to maintain the idle speed is adopted, the vehicle is limited to be shifted up, and only the gear and the down shift can be kept, so that the driving safety and the gear shifting safety are ensured, the heavy-load vehicle moving requirements of the vehicle can be met, and the use experience of a user is improved.

Description

Vehicle locking control method and system, vehicle and storage medium

Technical Field

The invention relates to the technical field of automobile control, in particular to a vehicle locking control method, a vehicle locking control system, a vehicle and a storage medium.

Background

Most of the rented electric vehicles in the market have a vehicle locking function, the operators rent the vehicles to individual users, and when the users do not pay rent in time, the operators lock the vehicles through the remote vehicle locking function to remind the users to pay the rent in time.

The existing vehicle locking control method mainly comprises the following three steps: the whole vehicle controller controls the maximum torque limit value to be reduced by a certain proportion; limiting the maximum vehicle speed of the whole vehicle; the engine is restricted from being restarted. The existing vehicle locking control methods have potential safety hazards, the heavy-load vehicle moving requirements of vehicles cannot be met, and the user experience is reduced.

Disclosure of Invention

The invention aims to provide a vehicle locking control method, a vehicle locking control system, a vehicle and a storage medium, which are safe and convenient and can meet the heavy-load vehicle moving requirements of the vehicle.

In order to realize the purpose, the following technical scheme is provided:

in a first aspect, the present invention provides a vehicle locking control method, including:

s1, judging whether a vehicle locking instruction is received, if so, recording the current gear as a memory gear, monitoring the current gear in real time, and jumping to S2;

s2, judging whether the clutch is in a treading state, if not, jumping to S3;

s3, judging whether the current gear is less than or equal to the lowest limited gear, if so, not limiting the engine torque, and if not, jumping to S4;

and S4, judging whether the current gear is less than or equal to the memory gear, if so, not limiting the engine torque, updating the memory gear to the current gear, and if not, limiting the engine torque to maintain the idle speed.

Further, step S1 further includes: if not, initializing the memory gear to be the maximum gear.

Further, step S2 further includes: if so, the engine torque is not limited.

Further, still include:

and S5, displaying the locking state and memorizing the gear.

In a second aspect, the present invention further provides a vehicle locking control system, including:

the vehicle locking platform is used for sending a vehicle locking instruction;

the vehicle information acquisition module is used for acquiring and sending vehicle information;

an engine ECU for controlling torque output by the engine;

the display equipment is used for displaying the locking state and memorizing the gear;

and the vehicle control unit is used for receiving and processing the vehicle locking instruction and the vehicle information and outputting the vehicle locking instruction and the vehicle information to the engine ECU and the display equipment.

Further, the vehicle information includes current gear information and a clutch signal.

Further, the vehicle information collection module includes:

the rotating speed acquisition module is used for acquiring and sending engine rotating speed information to the vehicle control unit;

the vehicle speed acquisition module is used for acquiring and sending vehicle speed information to the vehicle control unit, and the vehicle control unit can obtain the current gear information according to the engine rotating speed information and the vehicle speed information;

and the clutch device is used for acquiring and sending the clutch signal to the vehicle control unit.

Further, the vehicle information acquisition module comprises an automatic gearbox, and the automatic gearbox is used for acquiring and sending the current gear information and the clutch signal to the vehicle control unit.

In a third aspect, the present invention also provides a vehicle comprising:

one or more processors;

storage means for storing one or more programs;

when the one or more programs are executed by the one or more processors, the one or more processors are enabled to implement the vehicle locking control method as described above.

In a fourth aspect, the present invention also provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the vehicle locking control method as described above.

Compared with the prior art, in the vehicle locking control method, the vehicle locking control system, the vehicle and the storage medium, after a vehicle locking instruction is received, the current gear is recorded as a memory gear, the current gear is monitored in real time, if the clutch is not in a treading state, whether the current gear is smaller than or equal to the lowest limit gear or not is judged, if yes, the engine torque is not limited, if not, whether the current gear is smaller than or equal to the memory gear or not is continuously judged, if yes, the engine torque is not limited, the memory gear is updated to be the current gear, and if not, the engine torque is limited to maintain the idle speed. The invention adopts a mode of limiting the engine torque to maintain the idle speed by different gears, when a vehicle normally runs, a background vehicle locking instruction is received, a vehicle locking mode is entered, the vehicle is limited to be upshifted, only the gear and the gear can be kept, the vehicle can be ensured to be safely and effectively operated in the current driving cycle after receiving the vehicle locking instruction sent by the background under various working conditions, the operation effect can be gradually attenuated as required, the long-time operation state cannot be kept, the invention is safer compared with a scheme of directly limiting the engine torque percentage, the driving safety and the gear shifting safety are ensured, compared with a scheme of limiting the secondary starting, the invention can set the lowest gear limit (for example, only limited to 5 gears), the vehicle heavy-load vehicle moving requirement can be met, and the user experience is improved.

Drawings

Fig. 1 is a flowchart of a vehicle locking control method according to an embodiment of the present invention;

fig. 2 is a schematic view of a vehicle locking control system according to a second embodiment of the present invention;

fig. 3 is a schematic structural diagram of a vehicle according to a third embodiment of the present invention.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

As shown in fig. 1, the present embodiment provides a method for controlling vehicle locking, which includes the following steps:

s2, judging whether the clutch is in a treading state, if not, jumping to S3;

After a vehicle locking instruction is received, recording that a current gear is a memory gear, monitoring the current gear in real time, judging whether the current gear is smaller than or equal to a lowest limiting gear if the clutch is not in a treading state, if so, not limiting the torque of the engine, otherwise, continuously judging whether the current gear is smaller than or equal to the memory gear, if so, not limiting the torque of the engine, updating the memory gear to the current gear, and if not, limiting the torque of the engine to maintain an idle speed.

The method comprises the steps of limiting the torque of an engine to maintain idling by adopting different gears, receiving a background vehicle locking instruction when a vehicle normally runs, entering a vehicle locking mode, limiting the vehicle to upshift, and only keeping the gear and downshift. The safe and effective running of the vehicle in the current driving cycle can be ensured after the vehicle receives the vehicle locking instruction sent by the background under various working conditions, and the running effect can be gradually attenuated as required, so that the long-time running state cannot be maintained. Compared with a scheme of directly limiting the torque percentage of the engine, the method is safer, and driving safety and gear shifting safety are guaranteed. Compared with the scheme of limiting secondary starting, the invention can set the lowest gear limit (for example, only limited to 5 gears), can meet the vehicle heavy-load vehicle moving requirement and improve the user experience.

Whether a vehicle locking requirement is confirmed through a vehicle locking platform and a vehicle controller together exists, and at present, the method mainly exists in heartbeat messages and an MD5 vehicle locking algorithm. If the automatic gearbox is adopted, the current gear is obtained through a gearbox controller; if the manual gearbox is adopted, the whole vehicle controller identifies gears through the speed ratio. The memory gear is stored in a memory of the vehicle control unit, and is written in when the vehicle is powered off, and is read at the moment of power on, so that the vehicle control unit can be changed when the logic is met. When the gear torque is larger than the lowest limit gear, the gear torque limitation can be effective; when the gear is less than or equal to the lowest limit gear, the limitation is not carried out, and the requirement of normal driving is ensured. And reserving a vehicle locking torque limiting path inside the vehicle control unit, responding to a limiting value when limitation is needed, and responding to a maximum value when limitation is not needed. When the current gear torque is limited, idling driving can be guaranteed. The locking state is displayed and the gear is memorized, so that a driver can know the current locking state conveniently.

Further, step S1 further includes: if not, initializing the memory gear to be the maximum gear. And when the vehicle locking instruction is not received, closing the vehicle locking module, outputting the maximum limit value of the engine torque, and initializing the memory gear to be the maximum gear value.

Further, step S2 further includes: if so, the engine torque is not limited. When the clutch is in a treading state, the torque is not limited in the gear shifting process (when the clutch is treaded), the gear shifting process is smooth, and the gear shifting safety is ensured.

In order to facilitate the driver to know the current vehicle locking state, the vehicle locking control method further comprises the following steps: and S5, displaying the locking state and memorizing the gear.

To facilitate understanding of the vehicle locking control method provided in the present embodiment, for example, when the driver drives the vehicle to run, the following operations are performed:

(a) at present, the gear is in 10 gear, and a vehicle locking command of a vehicle locking platform is received at the moment;

(b) the instrument displays a locking mode and a memory gear, and at the moment, the memory gear is 10 gears;

(c) the driver steps on the clutch, shifts to 11 gears which are larger than the memory gear (10 gears), and the vehicle can only keep idle running;

(d) the driver steps on the clutch, shifts to 10 gears, is less than or equal to the memory gear (10 gears), and the vehicle can normally run;

(f) the driver steps on the clutch, shifts to the 9 th gear, is less than or equal to the memory gear (10 th gear), the vehicle can normally run, and the memory gear is updated to the 9 th gear;

(g) the driver steps on the clutch, shifts to 10 gears which are larger than the memory gear (9 gears), and the vehicle can only keep idle running;

(h) the driver steps on the clutch, shifts to a 5-gear (for example, the 5-gear is the lowest limit gear), is less than or equal to the memory gear (9-gear), the vehicle can normally run, and updates the memory gear to the 5-gear;

(i) the driver steps on the clutch, shifts to the 4 th gear, is less than or equal to the memory gear (5 th gear), and the vehicle can normally run;

(j) the driver steps on the clutch, shifts to the 5 th gear, and the speed is less than or equal to the memory gear (5 th gear), so that the vehicle can normally run;

(k) the driver steps on the clutch, shifts to 6 gears which are larger than the memory gear (5 gears), and the vehicle can only keep idle running;

(l) The vehicle is flamed out;

(m) the driver starts the engine, shifts to 5 gears, is less than or equal to the memory gear (5 gears), and the vehicle can normally run;

and (n) when the driver steps on the clutch and shifts to the 6 th gear, the speed is larger than the memory gear (5 th gear), and the vehicle can only keep idle running.

The locking control method provided by the embodiment adopts a mode of limiting the torque of the engine to maintain the idle speed in different gears. When the vehicle normally runs, a background vehicle locking instruction is received, a vehicle locking mode is entered, the vehicle is limited to be shifted up, and only the gear and the gear can be kept to be shifted down. The safe and effective running of the vehicle in the current driving cycle can be ensured after the vehicle receives the vehicle locking instruction sent by the background under various working conditions, and the running effect can be gradually attenuated as required, so that the long-time running state cannot be maintained. Compared with a scheme of directly limiting the torque percentage of the engine, the method is safer, and driving safety and gear shifting safety are guaranteed. Compared with the scheme of limiting secondary starting, the invention can set the lowest gear limit (for example, only limited to 5 gears), can meet the vehicle heavy-load vehicle moving requirement and improve the user experience.

Example two

The embodiment provides a vehicle locking control system, which can execute the vehicle locking control method provided by the embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method.

As shown in fig. 2, the vehicle locking control system includes a vehicle locking platform, a vehicle information acquisition module, an engine ECU, a display device, and a vehicle control unit. The vehicle locking platform is used for sending a vehicle locking instruction; the vehicle information acquisition module is used for acquiring and sending vehicle information; the engine ECU is used for controlling the torque output by the engine; the display equipment is used for displaying the locking state and memorizing the gear; and the vehicle control unit is used for receiving and processing the vehicle locking instruction and the vehicle information and outputting the vehicle locking instruction and the vehicle information to the engine ECU and the display equipment. The vehicle locking platform comprises a vehicle networking background and a vehicle-mounted terminal. The vehicle information includes current gear information and a clutch signal.

The vehicle information acquisition module comprises a rotating speed acquisition module, a vehicle speed acquisition module and a clutch device, wherein the rotating speed acquisition module is used for acquiring and sending engine rotating speed information to the whole vehicle controller, and the rotating speed acquisition module can be obtained through the engine rotating speed information sent by the engine ECU. The vehicle speed acquisition module is used for acquiring and sending vehicle speed information to the vehicle control unit, and the vehicle control unit can obtain current gear information according to the engine rotating speed information and the vehicle speed information. The vehicle locking information sent by the vehicle locking platform is received through the vehicle control unit, the engine rotating speed information sent by the engine ECU is received, the vehicle speed information sent by the vehicle speed acquisition module is received, and the current gear information is calculated according to the engine rotating speed and the vehicle speed. The clutch device is used for collecting and sending a clutch signal to the vehicle control unit.

Or the vehicle information acquisition module comprises an automatic gearbox, and the automatic gearbox is used for acquiring and sending the current gear information and the clutch signal to the vehicle control unit. The automatic gearbox can directly send current gear information and a clutch signal to the vehicle control unit.

The locking control system provided by the embodiment adopts different gears to limit the torque of the engine to maintain the idling speed. When the vehicle normally runs, a background vehicle locking instruction is received, a vehicle locking mode is entered, the vehicle is limited to be shifted up, and only the gear and the gear can be kept to be shifted down. The safe and effective running of the vehicle in the current driving cycle can be ensured after the vehicle receives the vehicle locking instruction sent by the background under various working conditions, and the running effect can be gradually attenuated as required, so that the long-time running state cannot be maintained. Compared with a scheme of directly limiting the torque percentage of the engine, the method is safer, and driving safety and gear shifting safety are guaranteed. Compared with the scheme of limiting secondary starting, the invention can set the lowest gear limit (for example, only limited to 5 gears), can meet the vehicle heavy-load vehicle moving requirement and improve the user experience.

EXAMPLE III

Fig. 3 is a schematic structural diagram of the vehicle in the present embodiment. FIG. 3 illustrates a block diagram of an exemplary vehicle 412 suitable for use in implementing embodiments of the present invention. The vehicle 412 shown in fig. 3 is only an example and should not impose any limitation on the functionality and scope of use of embodiments of the present invention.

As shown in fig. 3, the vehicle 412 is represented in the form of a general-purpose terminal. The components of the vehicle 412 may include, but are not limited to: a vehicle body (not shown), one or more processors 416, a memory device 428, and a bus 418 that connects the various system components, including the memory device 428 and the processors 416.

Bus 418 represents one or more of any of several types of bus structures, including a memory device bus or memory device controller, a peripheral bus, an accelerated graphics port, and a processor or local bus using any of a variety of bus architectures. By way of example, such architectures include, but are not limited to, Industry Standard Architecture (ISA) bus, Micro Channel Architecture (MAC) bus, enhanced ISA bus, Video Electronics Standards Association (VESA) local bus, and Peripheral Component Interconnect (PCI) bus.

The vehicle 412 typically includes a variety of computer system readable media. Such media may be any available media that is accessible by vehicle 412 and includes both volatile and nonvolatile media, removable and non-removable media.

Storage 428 may include computer system readable media in the form of volatile Memory, such as Random Access Memory (RAM) 430 and/or cache Memory 432. The vehicle 412 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 434 may be used to read from and write to non-removable, nonvolatile magnetic media (not shown in FIG. 3, commonly referred to as a "hard drive"). Although not shown in FIG. 3, a magnetic disk drive for reading from and writing to a removable, nonvolatile magnetic disk (e.g., a "floppy disk") and an optical disk drive for reading from or writing to a removable, nonvolatile optical disk such as a Compact disk Read-Only Memory (CD-ROM), Digital Video disk Read-Only Memory (DVD-ROM) or other optical media may be provided. In these cases, each drive may be connected to bus 418 by one or more data media interfaces. Storage 428 may include at least one program product having a set (e.g., at least one) of program modules that are configured to carry out the functions of embodiments of the invention.

A program/utility 440 having a set (at least one) of program modules 442 may be stored, for instance, in storage 428, such program modules 442 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may comprise an implementation of a network environment. The program modules 442 generally perform the functions and/or methodologies of the described embodiments of the invention.

The vehicle 412 may also communicate with one or more external devices 414 (e.g., keyboard, pointing terminal, display 424, etc.), with one or more terminals that enable a user to interact with the vehicle 412, and/or with any terminals (e.g., network card, modem, etc.) that enable the vehicle 412 to communicate with one or more other computing terminals. Such communication may occur via input/output (I/O) interfaces 422. Also, the vehicle 412 may communicate with one or more networks (e.g., a Local Area Network (LAN), Wide Area Network (WAN), and/or a public Network, such as the internet) via the Network adapter 420. As shown in FIG. 3, the network adapter 420 communicates with the other modules of the vehicle 412 over the bus 418. It should be appreciated that although not shown in the figures, other hardware and/or software modules may be used in conjunction with the vehicle 412, including but not limited to: microcode, end drives, Redundant processors, external disk drive Arrays, RAID (Redundant Arrays of Independent Disks) systems, tape drives, and data backup storage systems, among others.

The processor 416 executes various functional applications and data processing by running programs stored in the storage device 428, for example, implementing a car locking control method provided by an embodiment of the present invention, where the car locking control method includes:

s2, judging whether the clutch is in a treading state, if not, jumping to S3;

Example four

The present embodiment provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements a vehicle locking control method provided in an embodiment of the present invention, where the vehicle locking control method includes:

s2, judging whether the clutch is in a treading state, if not, jumping to S3;

Computer storage media for embodiments of the invention may employ any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.

Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + +, or the like, as well as conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or terminal. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A vehicle locking control method is characterized by comprising the following steps:

s2, judging whether the clutch is in a treading state, if not, jumping to S3;

2. The vehicle locking control method according to claim 1, wherein the step S1 further comprises: if not, initializing the memory gear to be the maximum gear.

3. The vehicle locking control method according to claim 1, wherein the step S2 further comprises: if so, the engine torque is not limited.

4. The lock vehicle control method according to claim 1, further comprising:

and S5, displaying the locking state and memorizing the gear.

5. A vehicle locking control system, characterized in that the vehicle locking control method according to any one of claims 1-4 is adopted, and the method comprises the following steps:

the vehicle locking platform is used for sending a vehicle locking instruction;

an engine ECU for controlling torque output by the engine;

6. The lock car control system of claim 5, wherein the vehicle information includes current gear information and a clutch signal.

7. The lock car control system of claim 6, wherein the vehicle information collection module comprises:

8. The vehicle locking control system according to claim 6, wherein the vehicle information acquisition module comprises an automatic transmission, and the automatic transmission is used for acquiring and sending the current gear information and the clutch signal to the vehicle control unit.

9. A vehicle, characterized in that the vehicle comprises:

one or more processors;

storage means for storing one or more programs;

when executed by the one or more processors, cause the one or more processors to implement the method of any of claims 1-4.

10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the lock control method according to any one of claims 1 to 4.