CN115071497A - Vehicle running control system and method - Google Patents

Vehicle running control system and method Download PDF

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Publication number
CN115071497A
CN115071497A CN202210772249.9A CN202210772249A CN115071497A CN 115071497 A CN115071497 A CN 115071497A CN 202210772249 A CN202210772249 A CN 202210772249A CN 115071497 A CN115071497 A CN 115071497A
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China
Prior art keywords
vehicle
controlled
limp
control message
terminal module
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CN202210772249.9A
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Chinese (zh)
Inventor
杨金硕
张建彪
杨红新
其他发明人请求不公开姓名
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Dr Octopus Intelligent Technology Shanghai Co Ltd
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Dr Octopus Intelligent Technology Shanghai Co Ltd
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Priority to CN202210772249.9A priority Critical patent/CN115071497A/en
Publication of CN115071497A publication Critical patent/CN115071497A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
  • Computer Security & Cryptography (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The application provides a vehicle driving control system and a method, wherein the system comprises: the system comprises an Internet of vehicles background, an Internet of vehicles terminal module and a battery management system; the vehicle networking background is used for sending a limping instruction to a vehicle networking terminal module of the vehicle to be controlled; the vehicle networking terminal module is used for receiving the limping instruction, generating a limping control message corresponding to the limping instruction according to a preset control message packaging standard, and sending the limping control message to the battery management system; the battery management system is used for receiving the limp control message and limiting the discharging power of the vehicle to be controlled according to the limp control message so that the vehicle to be controlled enters a limp mode. According to the system provided by the scheme, when the vehicle is required to be limited to run, the limp instruction is sent to the vehicle networking terminal module of the vehicle to be controlled, and the vehicle to be controlled is controlled to enter a limp mode, so that the hardware circuit of the vehicle is prevented from being damaged by vehicle limiting operation, and the maintenance cost of the vehicle is reduced.

Description

Vehicle running control system and method
Technical Field
The present application relates to the field of vehicle control technologies, and in particular, to a vehicle driving control system and method.
Background
With the stricter emission standards, new energy vehicles are gradually replacing fuel vehicles to become the main force of logistics vehicles, and new energy vehicles are forced to have the function of internet of vehicles at present, so that the vehicle restriction units and host plants are deeply cooperated, and the customized development of internet of vehicles service has become the development trend of the internet of vehicles technology.
In the prior art, when a user does not pay for a vehicle purchase loan or rent on time, the vehicle is locked forcibly by a GPS device installed on the vehicle. But this can cause damage to the vehicle hardware circuitry, increasing the maintenance costs of the vehicle.
Disclosure of Invention
The application provides a vehicle driving control system and a vehicle driving control method, which aim to overcome the defects that in the prior art, a vehicle hardware circuit is damaged and the like.
A first aspect of the present application provides a vehicle travel control system including: the system comprises an Internet of vehicles background, an Internet of vehicles terminal module and a battery management system;
the vehicle networking background is used for sending a limping instruction to a vehicle networking terminal module of a vehicle to be controlled; the control method comprises the following steps that a vehicle to be controlled is a vehicle with arrearage;
the vehicle networking terminal module is used for receiving the limping instruction, generating a limping control message corresponding to the limping instruction according to a preset control message packaging standard, and sending the limping control message to the battery management system;
the battery management system is used for receiving the limp control message and limiting the discharging power of the vehicle to be controlled according to the limp control message so that the vehicle to be controlled enters a limp mode.
Optionally, the method further includes: a vehicle body controller;
the vehicle body controller is used for carrying out safety detection on the received limping control message; sending an authentication instruction to the Internet of vehicles terminal module under the condition that the limp control message passes the safety detection; verifying the identity of the Internet of vehicles terminal module according to an authentication instruction execution result fed back by the Internet of vehicles terminal module; and forwarding the limping control message to a battery management system under the condition that the identity of the Internet of vehicles terminal module is legal.
Optionally, the car networking terminal module is further configured to:
receiving an authentication instruction sent by the vehicle body controller;
executing the authentication instruction based on a preset identity authentication function to obtain a corresponding authentication instruction execution result;
and feeding back the execution result of the authentication instruction to the vehicle body controller.
Optionally, the vehicle body controller is specifically configured to:
and carrying out safety detection on the limp control message according to the message composition information of the limp control message.
Optionally, the method further includes:
and the gateway is used for receiving the limp control message sent to the vehicle controller by the vehicle networking terminal module and forwarding the limp control message to the vehicle controller.
Optionally, the car networking terminal module is further configured to:
sending a heartbeat signal to the battery management system according to a preset period;
the battery management system is further configured to:
receiving the heartbeat signal; performing zero-setting processing on a preset timer once every time one heartbeat signal is received;
when the timing quantity of the preset timer reaches a preset time threshold value, determining that the vehicle networking terminal module is offline, and limiting the discharge power of the vehicle to be controlled so as to enable the vehicle to be controlled to enter a limp mode.
Optionally, the battery management system is further configured to:
before the discharging power of the vehicle to be controlled is limited, the vehicle to be controlled is controlled to enter a pre-limping mode, and corresponding reminding information is pushed on a display screen of the vehicle to be controlled.
Optionally, the battery management system is specifically configured to:
after the limp control message is received, detecting the current SOC state of the vehicle to be controlled;
when the current SOC state of the vehicle to be controlled meets a preset control standard, limiting the discharge power of the vehicle to be controlled so as to enable the vehicle to be controlled to enter a limp home mode;
and when the current SOC state of the vehicle to be controlled does not meet the preset control standard, controlling the vehicle to be controlled to be kept in a pre-limp mode.
Optionally, the car networking background is further configured to:
sending a limping release instruction to a vehicle networking terminal module of a vehicle to be controlled;
the car networking terminal module is also used for:
receiving the lameness relieving instruction, generating a lameness relieving message corresponding to the lameness relieving instruction according to a preset control message packaging standard, and sending the lameness relieving message to the battery management system;
the battery management system is further configured to:
and receiving the limp release message, and controlling the vehicle to be controlled to enter a pre-normal mode according to the limp release message.
A second aspect of the present application provides a vehicle travel control method including:
sending a limping instruction to a vehicle networking terminal module of a vehicle to be controlled; the control method comprises the following steps that a vehicle to be controlled is a vehicle with arrearage;
based on the internet of vehicles terminal module, according to a preset control message encapsulation standard, a limp control message corresponding to the limp instruction is generated, and the limp control message is sent to a battery management system, so that the battery management system limits the discharge power of the vehicle to be controlled according to the limp control message, and the vehicle to be controlled enters a limp mode.
Optionally, the method further includes:
carrying out safety detection on the limp control message; sending an authentication instruction to the Internet of vehicles terminal module under the condition that the limp control message passes the safety detection; verifying the identity of the Internet of vehicles terminal module according to an authentication instruction execution result fed back by the Internet of vehicles terminal module; and forwarding the limping control message to a battery management system under the condition that the identity of the Internet of vehicles terminal module is legal.
Optionally, the performing security detection on the limp control packet includes:
and carrying out safety detection on the limp control message according to the message composition information of the limp control message.
Optionally, the method further includes:
receiving a heartbeat signal sent by the Internet of vehicles terminal module; performing zero-setting processing on a preset timer once every time one heartbeat signal is received; when the timing quantity of the preset timer reaches a preset time threshold value, determining that the vehicle networking terminal module is offline, and limiting the discharge power of the vehicle to be controlled so as to enable the vehicle to be controlled to enter a limp mode.
Optionally, before limiting the discharge power of the vehicle to be controlled, the method further includes:
and controlling the vehicle to be controlled to enter a pre-limping mode, and pushing corresponding reminding information on a display screen of the vehicle to be controlled.
Optionally, after receiving the limp control message, the battery management system detects a current SOC state of the vehicle to be controlled; when the current SOC state of the vehicle to be controlled meets a preset control standard, limiting the discharge power of the vehicle to be controlled so as to enable the vehicle to be controlled to enter a limp home mode; and when the current SOC state of the vehicle to be controlled does not meet the preset control standard, controlling the vehicle to be controlled to be kept in a pre-limp mode.
Optionally, the method further includes:
sending a limping release instruction to a vehicle networking terminal module of a vehicle to be controlled;
based on the internet of vehicles terminal module, according to a preset control message packaging standard, a lameness removing message corresponding to the lameness removing instruction is generated, and the lameness removing message is sent to the battery management system; and controlling the vehicle to be controlled to enter a pre-normal mode by the battery management system according to the limp release message.
This application technical scheme has following advantage:
the application provides a vehicle driving control system and a method, wherein the system comprises: the system comprises an Internet of vehicles background, an Internet of vehicles terminal module and a battery management system; the vehicle networking background is used for sending a limping instruction to a vehicle networking terminal module of the vehicle to be controlled; the vehicle networking terminal module is used for receiving the limping instruction, generating a limping control message corresponding to the limping instruction according to a preset control message packaging standard, and sending the limping control message to the battery management system; the battery management system is used for receiving the limp control message and limiting the discharging power of the vehicle to be controlled according to the limp control message so that the vehicle to be controlled enters a limp mode. According to the system provided by the scheme, when the vehicle is required to be limited to run, the limp instruction is sent to the vehicle networking terminal module of the vehicle to be controlled, and the vehicle to be controlled is controlled to enter a limp mode, so that the damage of a vehicle hardware circuit caused by vehicle limiting operation is avoided, and the maintenance cost of the vehicle is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art according to these drawings.
FIG. 1 is an interactive schematic view of a vehicle driving control system provided in an embodiment of the present application;
FIG. 2 is an interactive schematic view of another vehicle driving control system provided in the embodiment of the present application;
fig. 3 is a schematic structural diagram of a vehicle driving control system provided in an embodiment of the present application;
FIG. 4 is a vehicle mode transition diagram provided by an embodiment of the present application;
fig. 5 is a schematic flow chart of a vehicle driving control method according to an embodiment of the present application.
With the above figures, there are shown specific embodiments of the present application, which will be described in more detail below. These drawings and written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the concepts of the disclosure to those skilled in the art by reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all 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 application.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the following examples, "plurality" means two or more unless specifically limited otherwise.
In the prior art, generally, when a user does not pay a car purchase loan or a rental fee on time, a new energy vehicle is forcibly locked based on a GPS device installed on the vehicle, and if the vehicle runs normally, the vehicle is out of control due to the limiting operations, so that great potential safety hazards exist. Secondly, some involve the damage of vehicle hardware circuit, and the vehicle later use still goes to special maintenance mechanism to resume. In addition, if the user knows the installation position of the GPS device, the user can detach the GPS device to avoid the vehicle from being locked. In sum, the scheme of installing the GPS device not only needs to add extra cost and is troublesome to maintain, but also has potential safety hazards and control holes.
In view of the above problems, an embodiment of the present application provides a vehicle driving control system and method, where the system includes: the system comprises an Internet of vehicles background, an Internet of vehicles terminal module and a battery management system; the vehicle networking background is used for sending a limping instruction to a vehicle networking terminal module of the vehicle to be controlled; the vehicle networking terminal module is used for receiving the limping instruction, generating a limping control message corresponding to the limping instruction according to a preset control message packaging standard, and sending the limping control message to the battery management system; the battery management system is used for receiving the limp control message and limiting the discharging power of the vehicle to be controlled according to the limp control message so that the vehicle to be controlled enters a limp mode. According to the system provided by the scheme, when the vehicle is required to be limited to run, the limp instruction is sent to the vehicle networking terminal module of the vehicle to be controlled, and the vehicle to be controlled is controlled to enter a limp mode, so that the hardware circuit of the vehicle is prevented from being damaged by vehicle limiting operation, and the maintenance cost of the vehicle is reduced.
The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present invention will be described below with reference to the accompanying drawings.
The embodiment of the application provides a vehicle running control system which is used for controlling running of a vehicle driven by a user under the condition that the user does not pay a vehicle purchase loan or rent on time and the like.
As shown in fig. 1, an interactive schematic diagram of a vehicle driving control system provided in an embodiment of the present application includes: the system comprises a vehicle networking background, a vehicle networking terminal module and a battery management system.
The vehicle networking background is used for sending a limping instruction to a vehicle networking terminal module of a vehicle to be controlled; wherein, the vehicle to be controlled is a vehicle with arrearage; the vehicle networking terminal module is used for receiving the limping instruction, generating a limping control message corresponding to the limping instruction according to a preset control message packaging standard, and sending the limping control message to the battery management system; the battery management system is used for receiving the limp control message and limiting the discharging power of the vehicle to be controlled according to the limp control message so that the vehicle to be controlled enters a limp mode.
Specifically, when the internet of vehicles background monitors that illegal behaviors such as vehicle purchase, loan, rent and the like which are not paid on time exist in a user, a vehicle driven by the user is determined to be a vehicle to be controlled, and then a limping instruction is sent to the internet of vehicles terminal module of the vehicle to be controlled in a wireless communication mode. After receiving the limping instruction, the vehicle networking terminal module (T-box) encapsulates the limping instruction into a limping control message, and sends the limping control message to a Battery Management System (BMS). Since the limp control message is an event message, the BMS needs to store and execute the limp control message, and simultaneously, the BMS sends vehicle state information of the limp mode to other controllers of the vehicle, such as a vehicle controller.
Specifically, switching of the limp home mode may be achieved by limiting the BMS discharge power, in which the BMS limits the current discharge power to 10% (calibratable) of the normal power. And the vehicle control unit reduces the power distributed to the motor according to the current discharge power of the BMS, so as to limit the vehicle speed.
On the basis of the foregoing embodiment, in order to avoid that a vehicle to be controlled is maliciously controlled by a hacker and affects the vehicle driving safety, as shown in fig. 2, which is an interactive schematic view of another vehicle driving control system provided in the embodiment of the present application, as an implementable manner, in an embodiment, the system further includes a vehicle body controller for performing safety detection on a received limp control message; sending an authentication instruction to the Internet of vehicles terminal module under the condition that the limp control message passes the safety detection; verifying the identity of the Internet of vehicles terminal module according to an authentication instruction execution result fed back by the Internet of vehicles terminal module; and forwarding the limping control message to a battery management system under the condition that the identity of the vehicle networking terminal module is legal.
Correspondingly, in an embodiment, the vehicle networking terminal module may receive an authentication instruction sent by the vehicle body controller; executing the authentication instruction based on a preset identity authentication function to obtain a corresponding authentication instruction execution result; and feeding back an execution result of the authentication instruction to the vehicle body controller.
Specifically, the vehicle body controller may determine whether the limp control message conforms to the control instruction transmission protocol of the vehicle to be controlled according to the structure and content of the limp control message currently received. And if the limp control message conforms to the control instruction transmission protocol of the vehicle to be controlled, determining that the limp control message passes the safety detection. Further, in order to verify whether the identity of the internet-of-vehicles terminal module which currently sends the limping control message to the vehicle body controller is legal, the vehicle body controller may send an authentication instruction to the internet-of-vehicles terminal module. After receiving the authentication instruction, the terminal module of the internet of vehicles inputs parameters contained in the authentication instruction into a preset identity authentication function so as to execute the authentication instruction based on the identity authentication function, and takes a calculation result of the identity authentication function as an authentication instruction execution result, and then feeds the authentication instruction execution result back to the vehicle body controller. And the vehicle body controller judges whether the identity of the vehicle networking terminal module is legal or not according to the matching condition between the received authentication instruction execution result and the expected authentication instruction execution result, and forwards the limping control message to the battery management system under the condition of determining that the identity of the vehicle networking terminal module is legal.
Specifically, in an embodiment, the vehicle body controller may perform security detection on the limp control message according to message composition information of the limp control message.
Specifically, whether the limp control message passes the safety detection can be judged according to the matching condition between the characters carried by the message identification bits represented by the message composition information of the limp control message and the preset identification bit information.
On the basis of the foregoing embodiment, in order to further ensure the safety of system communication, as shown in fig. 3, which is a schematic structural diagram of the vehicle driving control system provided in the embodiment of the present application, as an implementable manner, in an embodiment, the system further includes: and the gateway is used for receiving the limp control message sent to the vehicle body controller by the vehicle networking terminal module and forwarding the limp control message to the vehicle body controller.
Specifically, in order to ensure the communication security between the terminal module of the internet of vehicles and the vehicle body controller, the vehicle body controller may be made to receive the limp control message forwarded by the gateway. As shown in fig. 3, the vehicle body controller, the gateway, the battery management system and the vehicle control unit communicate with each other based on the CAN.
On the basis of the above embodiment, in order to avoid that the driving control of the vehicle cannot be realized because the vehicle networking terminal module is detached by the user in a private manner, as an implementable manner, in an embodiment, the vehicle networking terminal module may send a heartbeat signal to the battery management system according to a preset period.
Accordingly, the battery management system may receive the heartbeat signal; performing zero-setting processing on a preset timer once every time a heartbeat signal is received; and when the timing quantity of the preset timer reaches a preset time threshold, determining that the vehicle networking terminal module is offline, and limiting the discharge power of the vehicle to be controlled so as to enable the vehicle to be controlled to enter a limp mode.
Illustratively, the heartbeat signal sent by the vehicle networking terminal module can be an Alive message, the vehicle networking terminal module can send the Alive message every second, if the battery management system does not receive a new Alive message for five continuous minutes, namely the timing of the preset timer reaches a preset time threshold value, the vehicle networking terminal module is determined to be detached privately, namely the vehicle networking terminal module is offline, and at the moment, the discharging power of the vehicle to be controlled is limited, so that the vehicle to be controlled enters a limp mode.
It should be noted that the BMS serves as one of the core components of the new energy vehicle and performs key functions such as battery state monitoring, charge and discharge control, and vehicle communication. If can pass through car networking remote control BMS's discharge power, can restrict user's the action of using car. Present car networking remote control technique is mainly to entertainment system and automobile body control system, like lock, door window and loudspeaker etc. owing to involve function safety, realizes less to driving system control, and how under the condition of ensureing vehicle safety, it needs urgent technical problem to solve to carry out reasonable intervention to new energy automobile driving system core BMS's function.
In order to solve the technical problem, on the basis of the above embodiments, as an implementable manner, in an embodiment, the battery management system may control the vehicle to be controlled to enter the pre-limp home mode before limiting the discharge power of the vehicle to be controlled, and push a corresponding reminding message on a display screen of the vehicle to be controlled.
It should be noted that if a user is driving at a high speed, traffic accidents are easily caused by the out-of-control power of the vehicle, even if no such safety risk exists, the vehicle can only drive at a low speed on the overhead and cannot conveniently stop, and if the normal mode is directly switched to the limp-home mode, great inconvenience is caused to the user. Therefore, in order to avoid inconvenience to the user and to take into account the need for functional safety, the battery management system first controls the vehicle to be controlled to enter a Pre-limp home mode (Pre _ limhome) in which the vehicle can still normally travel.
Specifically, after the battery management system controls the vehicle to be controlled to enter the pre-limp mode, the battery management system sends a notice that the vehicle to be controlled enters the pre-limp mode to the whole vehicle network, so that a display screen such as an instrument panel of the vehicle to be controlled can push reminding information for a user when receiving the notice, such as 'the vehicle is about to enter limp and please drive cautiously'.
Further, after the vehicle to be controlled enters the pre-limp mode, the battery management system starts to time for 30 minutes (can be calibrated), so that the user has enough time to drive to an area where the vehicle can be conveniently parked, and after the time reaches 30 minutes, the discharge power of the vehicle to be controlled is limited, so that the vehicle to be controlled is switched to the limp mode. If an instruction to exit limp home is received within 30 minutes, the battery management system controls the vehicle to be controlled to directly enter a Normal mode (Normal).
Specifically, in an embodiment, in order to further ensure the driving safety of the vehicle to be controlled, the battery management system may detect the current SOC state of the vehicle to be controlled after receiving the limp control message; when the current SOC state of the vehicle to be controlled meets a preset control standard, limiting the discharge power of the vehicle to be controlled so as to enable the vehicle to be controlled to enter a limp-home mode; and when the current SOC state of the vehicle to be controlled does not meet the preset control standard, controlling the vehicle to be controlled to be kept in the pre-limp mode.
It should be noted that when the current SOC state does not satisfy the preset control standard, for example, when the current SOC state is lower than 10%, the vehicle to be controlled is controlled to enter the limp mode, and the user may misunderstand that the limp is caused by low power, which is not favorable for guaranteeing the user experience.
Specifically, when the current SOC state of the vehicle to be controlled meets the preset control standard, the vehicle to be controlled enters the limp mode by limiting the discharge power of the vehicle to be controlled, and the "vehicle enters the limp mode" is displayed on a display screen such as an instrument panel.
Specifically, in an embodiment, the current vehicle speed of the vehicle to be controlled may also be monitored before the discharge power of the vehicle to be controlled is limited, and when the current vehicle speed is less than a preset vehicle speed threshold, such as less than 5km/h, the discharge power of the vehicle to be controlled is limited, otherwise, the vehicle to be controlled is controlled to be kept in the pre-limp mode.
On the basis of the above embodiment, the vehicle to be controlled can be conveniently restarted, so as to further reduce the maintenance cost of the vehicle, and as an implementable mode, in an embodiment, the vehicle networking background can also send a limp release instruction to the vehicle networking terminal module of the vehicle to be controlled.
Correspondingly, the vehicle networking terminal module receives the limping release instruction, generates a limping release message corresponding to the limping release instruction according to a preset control message encapsulation standard, and sends the limping release message to the battery management system; and the battery management system receives the limping release message and controls the vehicle to be controlled to enter a pre-normal mode according to the limping release message.
It should be noted that, the control of the vehicle to be controlled to enter the pre-normal mode is to prevent the vehicle from being unexpectedly accelerated to affect the driving safety of the vehicle. As shown in fig. 4, for the vehicle mode transition diagram provided in the embodiment of the present application, after the vehicle to be controlled enters the pre-normal mode, the user needs to stop the vehicle to be controlled, that is, the vehicle speed is equal to 0, and then start the vehicle to be controlled and enter the normal mode.
Specifically, after the user finishes payment, the user can apply for a limp-off mode, at this time, the internet-of-vehicles background sends a limp-off instruction to the internet-of-vehicles terminal module of the vehicle to be controlled, and the transmission and execution flow of the limp-off instruction is the same as the limp-off instruction, and the limp-off instruction is not described herein again.
Specifically, in one embodiment, in order to further ensure the reliability of the vehicle driving control, the battery management system needs to store the mode information such as the pre-limp mode and the limp mode in the nonvolatile memory, and the vehicle to be controlled is dormant and then awakened to maintain the state before the last dormancy, that is, the vehicle to be controlled is reignited after the flameout of the limp mode and is still maintained in the limp mode.
The embodiment of the application provides a vehicle control system that traveles, includes: the system comprises an Internet of vehicles background, an Internet of vehicles terminal module and a battery management system; the vehicle networking background is used for sending a limping instruction to a vehicle networking terminal module of the vehicle to be controlled; the vehicle networking terminal module is used for receiving the limping instruction, generating a limping control message corresponding to the limping instruction according to a preset control message packaging standard, and sending the limping control message to the battery management system; the battery management system is used for receiving the limp control message and limiting the discharging power of the vehicle to be controlled according to the limp control message so that the vehicle to be controlled enters a limp mode. According to the system provided by the scheme, when the vehicle is required to be limited to run, the limp instruction is sent to the vehicle networking terminal module of the vehicle to be controlled, and the vehicle to be controlled is controlled to enter a limp mode, so that the damage of a vehicle hardware circuit caused by vehicle limiting operation is avoided, and the maintenance cost of the vehicle is reduced. And the entering and exiting of the limp mode take information such as current vehicle speed and SOC into consideration, so that the requirement of function safety is met, a specific maintenance shop is not required for releasing the limp mode, additional operation is not required for a user, the vehicle to be controlled can be conveniently restarted, and the maintenance cost of the vehicle is further reduced.
The embodiment of the application provides a vehicle running control method, which is used for controlling running of a vehicle driven by a user under the condition that the user does not pay a vehicle purchase loan or rent on time and the like, and the execution main body is electronic equipment, such as a server, a desktop computer, a notebook computer, a tablet personal computer and other electronic equipment which can be used for deploying a background of a vehicle networking.
As shown in fig. 5, a schematic flow chart of a vehicle driving control method provided in an embodiment of the present application is shown, where the method includes:
step 501, sending a limping instruction to a vehicle networking terminal module of a vehicle to be controlled; wherein, the vehicle to be controlled is a vehicle with arrearage;
and 502, generating a limping control message corresponding to the limping instruction according to a preset control message encapsulation standard based on the internet of vehicles terminal module, and sending the limping control message to the battery management system, so that the battery management system limits the discharge power of the vehicle to be controlled according to the limping control message, and the vehicle to be controlled enters a limping mode.
Specifically, in an embodiment, the method further includes:
carrying out safety detection on the limp control message; sending an authentication instruction to the Internet of vehicles terminal module under the condition that the limp control message passes the safety detection; verifying the identity of the Internet of vehicles terminal module according to an authentication instruction execution result fed back by the Internet of vehicles terminal module; and forwarding the limping control message to a battery management system under the condition that the identity of the Internet of vehicles terminal module is legal.
Specifically, in an embodiment, the performing security detection on the limp control message includes:
and carrying out safety detection on the limp control message according to the message composition information of the limp control message.
Specifically, in an embodiment, the method further includes:
receiving a heartbeat signal sent by a terminal module of the Internet of vehicles; performing zero-setting processing on a preset timer once every time a heartbeat signal is received; and when the timing quantity of the preset timer reaches a preset time threshold, determining that the vehicle networking terminal module is offline, and limiting the discharge power of the vehicle to be controlled so as to enable the vehicle to be controlled to enter a limp mode.
Specifically, in one embodiment, before limiting the discharge power of the vehicle to be controlled, the method further comprises:
and controlling the vehicle to be controlled to enter a pre-limping mode, and pushing corresponding reminding information on a display screen of the vehicle to be controlled.
Specifically, in an embodiment, after receiving a limp control message, a battery management system detects a current SOC state of a vehicle to be controlled; when the current SOC state of the vehicle to be controlled meets a preset control standard, limiting the discharge power of the vehicle to be controlled so as to enable the vehicle to be controlled to enter a limp-home mode; and when the current SOC state of the vehicle to be controlled does not meet the preset control standard, controlling the vehicle to be controlled to be kept in the pre-limp mode.
Specifically, in an embodiment, the method further includes:
sending a limping release instruction to a vehicle networking terminal module of a vehicle to be controlled;
based on the internet of vehicles terminal module, generating a limping release message corresponding to the limping release instruction according to a preset control message encapsulation standard, and sending the limping release message to a battery management system; and controlling the vehicle to be controlled to enter a pre-normal mode by the battery management system according to the limp release message.
With regard to the vehicle travel control method in the present embodiment, the detailed implementation of each step thereof has been described in detail in the embodiment related to the system, and will not be elaborated herein.
The vehicle driving control method provided by the embodiment of the application is an application method of the vehicle driving control system provided by the embodiment, and the implementation manner and the principle are the same, and are not described again.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. A vehicle travel control system characterized by comprising: the system comprises an Internet of vehicles background, an Internet of vehicles terminal module and a battery management system;
the vehicle networking background is used for sending a limping instruction to a vehicle networking terminal module of a vehicle to be controlled; the control method comprises the following steps that a vehicle to be controlled is a vehicle with arrearage;
the vehicle networking terminal module is used for receiving the limping instruction, generating a limping control message corresponding to the limping instruction according to a preset control message packaging standard, and sending the limping control message to the battery management system;
the battery management system is used for receiving the limp control message and limiting the discharging power of the vehicle to be controlled according to the limp control message so that the vehicle to be controlled enters a limp mode.
2. The system of claim 1, further comprising: a vehicle body controller;
the vehicle body controller is used for carrying out safety detection on the received limping control message; sending an authentication instruction to the Internet of vehicles terminal module under the condition that the limp control message passes the safety detection; verifying the identity of the Internet of vehicles terminal module according to an authentication instruction execution result fed back by the Internet of vehicles terminal module; and forwarding the limping control message to a battery management system under the condition that the identity of the Internet of vehicles terminal module is legal.
3. The system of claim 2, wherein the car networking terminal module is further configured to:
receiving an authentication instruction sent by the vehicle body controller;
executing the authentication instruction based on a preset identity authentication function to obtain a corresponding authentication instruction execution result;
and feeding back the execution result of the authentication instruction to the vehicle body controller.
4. The system of claim 2, wherein the body controller is specifically configured to:
and carrying out safety detection on the limp control message according to the message composition information of the limp control message.
5. The system of claim 2, further comprising:
and the gateway is used for receiving the limp control message sent to the vehicle controller by the vehicle networking terminal module and forwarding the limp control message to the vehicle controller.
6. The system of claim 1, wherein the car networking terminal module is further configured to:
sending a heartbeat signal to the battery management system according to a preset period;
the battery management system is further configured to:
receiving the heartbeat signal; performing zero-setting processing on a preset timer once every time one heartbeat signal is received;
when the timing quantity of the preset timer reaches a preset time threshold value, determining that the vehicle networking terminal module is offline, and limiting the discharge power of the vehicle to be controlled so as to enable the vehicle to be controlled to enter a limp mode.
7. The system of claim 1, wherein the battery management system is further configured to:
before the discharging power of the vehicle to be controlled is limited, the vehicle to be controlled is controlled to enter a pre-limping mode, and corresponding reminding information is pushed on a display screen of the vehicle to be controlled.
8. The system of claim 1, wherein the battery management system is specifically configured to:
after the limp control message is received, detecting the current SOC state of the vehicle to be controlled;
when the current SOC state of the vehicle to be controlled meets a preset control standard, limiting the discharge power of the vehicle to be controlled so as to enable the vehicle to be controlled to enter a limp home mode;
and when the current SOC state of the vehicle to be controlled does not meet the preset control standard, controlling the vehicle to be controlled to be kept in a pre-limp mode.
9. The system of claim 1, wherein the internet of vehicles backend, further to:
sending a limping release instruction to a vehicle networking terminal module of a vehicle to be controlled;
the car networking terminal module is also used for:
receiving the lameness relieving instruction, generating a lameness relieving message corresponding to the lameness relieving instruction according to a preset control message packaging standard, and sending the lameness relieving message to the battery management system;
the battery management system is further configured to:
and receiving the limp release message, and controlling the vehicle to be controlled to enter a pre-normal mode according to the limp release message.
10. A vehicle travel control method characterized by comprising:
sending a limping instruction to a vehicle networking terminal module of a vehicle to be controlled; the control method comprises the following steps that a vehicle to be controlled is a vehicle with arrearage;
based on the internet of vehicles terminal module, according to a preset control message encapsulation standard, a limp control message corresponding to the limp instruction is generated, and the limp control message is sent to a battery management system, so that the battery management system limits the discharge power of the vehicle to be controlled according to the limp control message, and the vehicle to be controlled enters a limp mode.
CN202210772249.9A 2022-06-30 2022-06-30 Vehicle running control system and method Pending CN115071497A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210772249.9A CN115071497A (en) 2022-06-30 2022-06-30 Vehicle running control system and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210772249.9A CN115071497A (en) 2022-06-30 2022-06-30 Vehicle running control system and method

Publications (1)

Publication Number Publication Date
CN115071497A true CN115071497A (en) 2022-09-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
CN (1) CN115071497A (en)

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