CN115071497B - Vehicle running control system and method - Google Patents
Vehicle running control system and method Download PDFInfo
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- CN115071497B CN115071497B CN202210772249.9A CN202210772249A CN115071497B CN 115071497 B CN115071497 B CN 115071497B CN 202210772249 A CN202210772249 A CN 202210772249A CN 115071497 B CN115071497 B CN 115071497B
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000006855 networking Effects 0.000 claims abstract description 50
- 238000004806 packaging method and process Methods 0.000 claims abstract description 15
- 206010022562 Intermittent claudication Diseases 0.000 claims description 26
- 208000024980 claudication Diseases 0.000 claims description 26
- 238000001514 detection method Methods 0.000 claims description 19
- 208000030175 lameness Diseases 0.000 claims description 19
- 238000012423 maintenance Methods 0.000 abstract description 8
- 230000001276 controlling effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 7
- 238000004891 communication Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000002452 interceptive effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005059 dormancy Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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]
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
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- 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]
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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
- 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)
- Automation & Control Theory (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The application provides a vehicle running control system and a method, wherein the system comprises the following steps: the system comprises a car networking background, a car networking terminal module and a battery management system; the internet of vehicles background is used for sending a limp command to an internet of vehicles terminal module of a vehicle to be controlled; the vehicle networking terminal module is used for receiving the limp command, generating a limp control message corresponding to the limp command according to a preset control message packaging standard, and sending the limp control message to the battery management system; the battery management system is used for receiving the limp control message, and limiting the discharge power of the vehicle to be controlled according to the limp control message so as to enable the vehicle to be controlled to enter a limp mode. According to the system provided by the scheme, when the vehicle is required to be limited to run, the limp command is sent to the vehicle networking terminal module of the vehicle to be controlled, and the vehicle to be controlled is controlled to enter the limp mode, so that the damage to the hardware circuit of the vehicle caused by the vehicle limiting operation is avoided, and the maintenance cost of the vehicle is reduced.
Description
Technical Field
The application relates to the technical field of vehicle control, in particular to a vehicle running control system and method.
Background
With increasingly strict emission standards, new energy automobiles start to gradually replace fuel automobiles to become the main force of logistics vehicles, and at present, requirements of the new energy automobiles on the functions of the Internet of vehicles are forcefully regulated, vehicle restriction units and host factories deeply cooperate, and customized development of Internet of vehicles services has become the development trend of Internet of vehicles technology.
In the prior art, when a user does not pay a loan or rent on time, a new energy vehicle is often locked by force based on a GPS device mounted on the vehicle. However, this causes damage to the hardware circuitry of the vehicle, which increases the maintenance costs of the vehicle.
Disclosure of Invention
The application provides a vehicle running control system and method, which are used for solving the defects that the prior art can damage a vehicle hardware circuit and the like.
A first aspect of the present application provides a vehicle running control system including: the system comprises a car networking background, a car networking terminal module and a battery management system;
The internet of vehicles background is used for sending a limp command to an internet of vehicles 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 limp command, generating a limp control message corresponding to the limp command according to a preset control message packaging standard, and sending the limp control message to the battery management system;
The battery management system is used for receiving the limp control message, limiting the discharge 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 comprises: a vehicle body controller;
The vehicle body controller is used for carrying out safety detection on the received claudication control message; sending an authentication instruction to the internet of vehicles terminal module under the condition that the lameness control message passes the safety detection; verifying the identity of the Internet of vehicles terminal module according to the authentication instruction execution result fed back by the Internet of vehicles terminal module; and forwarding the claudication control message to a battery management system under the condition that the identity of the Internet of vehicles terminal module is legal.
Optionally, the internet of vehicles 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 authentication instruction execution result to the vehicle body controller.
Optionally, the vehicle body controller is specifically configured to:
and carrying out safety detection on the lameness control message according to the message composition information of the lameness control message.
Optionally, the method further comprises:
And the gateway is used for receiving the claudication control message sent by the Internet of vehicles terminal module to the vehicle body controller and forwarding the claudication control message to the vehicle body controller.
Optionally, the internet of vehicles 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; carrying out zero resetting treatment on a preset timer every time one heartbeat signal is received;
And when the timing quantity of the preset timer reaches a preset duration 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-home mode.
Optionally, the battery management system is further configured to:
before limiting the discharge power of the vehicle to be controlled, controlling the vehicle to be controlled to enter a pre-limp mode, and pushing corresponding reminding information on a display screen of the vehicle to be controlled.
Optionally, the battery management system is specifically configured to:
Detecting the current SOC state of the vehicle to be controlled after receiving the lameness 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 a preset control standard, controlling the vehicle to be controlled to be kept in a pre-limp mode.
Optionally, the internet of vehicles background is further configured to:
Sending a limp-home release instruction to a vehicle networking terminal module of a vehicle to be controlled;
the internet of vehicles terminal module is further used for:
receiving the limp-home release instruction, generating a limp-home release message corresponding to the limp-home release instruction according to a preset control message packaging standard, and sending the limp-home release message to the battery management system;
The battery management system is further configured to:
And receiving the claudication release message, and controlling the vehicle to be controlled to enter a pre-normal mode according to the claudication release message.
A second aspect of the present application provides a vehicle running control method including:
sending a limp command to a vehicle networking terminal module of a vehicle to be controlled; wherein the vehicle to be controlled is a vehicle with arrearage;
Based on the Internet of vehicles terminal module, generating a limp control message corresponding to the limp command according to a preset control message packaging standard, and sending the limp control message 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 comprises:
Safety detection is carried out on the claudication control message; sending an authentication instruction to the internet of vehicles terminal module under the condition that the lameness control message passes the safety detection; verifying the identity of the Internet of vehicles terminal module according to the authentication instruction execution result fed back by the Internet of vehicles terminal module; and forwarding the claudication 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 safety detection on the claudication control message includes:
and carrying out safety detection on the lameness control message according to the message composition information of the lameness control message.
Optionally, the method further comprises:
Receiving a heartbeat signal sent by the Internet of vehicles terminal module; carrying out zero resetting treatment on a preset timer every time one heartbeat signal is received; and when the timing quantity of the preset timer reaches a preset duration 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-home 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-limp mode, and pushing corresponding reminding information on a display screen of the vehicle to be controlled.
Optionally, after receiving the lameness 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 a preset control standard, controlling the vehicle to be controlled to be kept in a pre-limp mode.
Optionally, the method further comprises:
Sending a limp-home release instruction to a vehicle networking terminal module of a vehicle to be controlled;
Based on the Internet of vehicles terminal module, generating a limp-home release message corresponding to the limp-home release instruction according to a preset control message packaging standard, and sending the limp-home release message to the battery management system; and the battery management system controls the vehicle to be controlled to enter a pre-normal mode according to the claudication release message.
The technical scheme of the application has the following advantages:
The application provides a vehicle running control system and a method, wherein the system comprises the following steps: the system comprises a car networking background, a car networking terminal module and a battery management system; the internet of vehicles background is used for sending a limp command to an internet of vehicles terminal module of a vehicle to be controlled; the vehicle networking terminal module is used for receiving the limp command, generating a limp control message corresponding to the limp command according to a preset control message packaging standard, and sending the limp control message to the battery management system; the battery management system is used for receiving the limp control message, and limiting the discharge power of the vehicle to be controlled according to the limp control message so as to enable the vehicle to be controlled to enter a limp mode. According to the system provided by the scheme, when the vehicle is required to be limited to run, the limp command is sent to the vehicle networking terminal module of the vehicle to be controlled, and the vehicle to be controlled is controlled to enter the limp mode, so that the damage to the hardware circuit of the vehicle caused by the 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, a brief description will be given below of the drawings required for the embodiments or the prior art descriptions, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is an interactive schematic diagram of a vehicle driving control system according to an embodiment of the present application;
FIG. 2 is an interactive schematic diagram of another vehicle driving control system according to an embodiment of the present application;
Fig. 3 is a schematic structural diagram of a vehicle running control system according to 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.
Specific embodiments of the present application have been shown by way of the above drawings and will be described in more detail below. These drawings and the written description are not intended to limit the scope of the disclosed concept in any way, but to illustrate the inventive concept to those skilled in the art by reference to specific embodiments.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In the following description of the embodiments, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the prior art, a new energy vehicle is forced to lock based on a GPS device installed on the vehicle under the condition that a user does not pay a loan or rent on time, etc., and if the vehicle runs normally, the limitation operation can cause the vehicle to run away, so that great potential safety hazard exists. Second, some involve damage to the vehicle hardware circuitry, and late vehicle activation requires restoration to a specialized repair facility. In addition, if the user knows the installation position of the GPS device, the vehicle can be prevented from being locked by detaching the GPS device. In summary, the scheme of installing the GPS device not only requires additional cost and troublesome maintenance, but also has potential safety hazards and prevention 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 a car networking background, a car networking terminal module and a battery management system; the internet of vehicles background is used for sending a limp command to an internet of vehicles terminal module of a vehicle to be controlled; the vehicle networking terminal module is used for receiving the limp command, generating a limp control message corresponding to the limp command according to a preset control message packaging standard, and sending the limp control message to the battery management system; the battery management system is used for receiving the limp control message, and limiting the discharge power of the vehicle to be controlled according to the limp control message so as to enable the vehicle to be controlled to enter a limp mode. According to the system provided by the scheme, when the vehicle is required to be limited to run, the limp command is sent to the vehicle networking terminal module of the vehicle to be controlled, and the vehicle to be controlled is controlled to enter the limp mode, so that the damage to the hardware circuit of the vehicle caused by the vehicle limiting operation is avoided, and the maintenance cost of the vehicle is reduced.
The following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail 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 running control of a vehicle driven by a user under the condition that the user does not pay a loan or rent on time.
Referring to fig. 1, an interaction schematic diagram of a vehicle driving control system according to an embodiment of the present application is shown, where the system includes: the system comprises a car networking background, a car networking terminal module and a battery management system.
The vehicle networking background is used for sending a limp command 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 limp command, generating a limp control message corresponding to the limp command according to a preset control message packaging standard, and sending the limp control message to the battery management system; the battery management system is used for receiving the limp control message, and limiting the discharge power of the vehicle to be controlled according to the limp control message so as to enable the vehicle to be controlled to enter a limp mode.
Specifically, when the internet of vehicles backstage detects that illegal actions such as paying a loan or renting on time exist in a certain user, the vehicle driven by the user is determined to be the vehicle to be controlled, and then a limp command is sent to the internet of vehicles terminal module of the vehicle to be controlled in a wireless communication mode. And after receiving the limp command, the vehicle networking terminal module (T-box) encapsulates the limp command into a limp control message, and sends the limp control message to a Battery Management System (BMS) MANAGEMENT SYSTEM. Because the limp control message is an event message, the BMS needs to store and execute the limp control message, and at the same time, the BMS sends the vehicle state information, i.e. the limp mode, to other controllers of the vehicle, such as a whole vehicle controller.
In particular, the 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% of the normal power (calibratable). The whole vehicle controller reduces the power distributed to the motor according to the current discharging power of the BMS, and further limits the vehicle speed.
On the basis of the above embodiment, in order to avoid that the vehicle to be controlled is maliciously controlled by a hacker and affects the running safety of the vehicle, fig. 2 is an interactive schematic diagram of another vehicle running control system according to an embodiment of the present application, as an implementation manner, in an embodiment, the system further includes a vehicle body controller, configured to perform safety detection on the received lameness control message; under the condition that the claudication control message passes the safety detection, an authentication instruction is sent to the Internet of vehicles terminal module; verifying the identity of the vehicle networking terminal module according to the authentication instruction execution result fed back by the vehicle networking terminal module; and forwarding the claudication control message to the battery management system under the condition that the identity of the terminal module of the Internet of vehicles is legal.
Accordingly, in an embodiment, the internet of vehicles terminal module may receive an authentication instruction sent by the vehicle body controller; based on a preset identity authentication function, executing an authentication instruction to obtain a corresponding authentication instruction execution result; and feeding back an authentication instruction execution result to the vehicle body controller.
Specifically, the vehicle body controller may determine, according to the structure and content of the currently received limp control message, whether the limp control message conforms to a control command transmission protocol of the vehicle to be controlled. And if the limp control message accords with 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 currently sending the limp 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 internet of vehicle terminal module inputs parameters contained in the authentication instruction into a preset identity authentication function to execute the authentication instruction based on the identity authentication function, takes a calculation result of the identity authentication function as an authentication instruction execution result, and feeds back the authentication instruction execution result 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 claudication control message to the battery management system under the condition that the identity of the vehicle networking terminal module is legal.
Specifically, in an embodiment, the vehicle body controller may perform safety detection on the claudication control message according to the message composition information of the claudication control message.
Specifically, whether the lameness control message passes through safety detection can be judged according to the matching condition between the character carried by the message identification bit represented by the message composition information of the lameness control message and the preset identification bit information.
On the basis of the above embodiment, in order to further ensure the safety of the system communication, as shown in fig. 3, which is a schematic structural diagram of the vehicle running control system according to the embodiment of the present application, as an implementation 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 safety between the internet of vehicles terminal module and the vehicle body controller, the vehicle body controller can be enabled to receive the claudication control message forwarded through the gateway. As shown in fig. 3, the vehicle body controller, the gateway, the battery management system and the vehicle controller are based on CAN communication.
On the basis of the above embodiment, in order to avoid that the user cannot realize the driving control of the vehicle because of the private disassembly of the internet of vehicles terminal module, as an implementation manner, in an embodiment, the internet of vehicles 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; every time a heartbeat signal is received, carrying out zero resetting treatment on a preset timer; when the timing quantity of the preset timer reaches a preset duration 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-home mode.
The heartbeat signal sent by the internet of vehicles terminal module may be an Alive message, the internet of vehicles terminal module may send an Alive message every second, and if the battery management system does not receive a new Alive message for five consecutive minutes, that is, the timing amount of the preset timer reaches the preset duration threshold, the internet of vehicles terminal module is considered to be disassembled privately, that is, the internet of vehicles terminal module is offline, at this time, the discharging power of the vehicle to be controlled is limited, so that the vehicle to be controlled enters a limp-home mode.
The BMS is used as one of the core components of the new energy automobile and plays key roles of battery state monitoring, charge and discharge control, whole automobile communication and the like. If the discharging power of the BMS can be remotely controlled through the Internet of vehicles, the vehicle behavior of the user can be limited. The existing remote control technology of the internet of vehicles mainly aims at entertainment systems and vehicle body control systems, such as door locks, vehicle windows, loudspeakers and the like, and is a technical problem to be solved in a reasonable intervention way on the functions of a new energy vehicle power system core BMS under the condition of ensuring the safety of vehicles because of the functional safety.
In order to solve the above technical problem, as an implementation manner, in an embodiment, before limiting the discharge power of the vehicle to be controlled, the battery management system may control the vehicle to be controlled to enter a pre-limp mode, and push corresponding reminding information on a display screen of the vehicle to be controlled.
It should be noted that, if the user is running at a high speed, the traffic accident is very easy to be caused by the out-of-control of the vehicle power, and even if the safety risk is not found, the vehicle can only run at a low speed on the overhead and can not be parked conveniently, and if the normal mode is switched to the limp-home mode, great inconvenience is caused to the user. Therefore, in order to avoid inconvenience to the user and to consider the need of functional safety, the battery management system first controls the vehicle to be controlled to enter a Pre-limp mode (pre_ Limphome) in which the vehicle can still run normally.
Specifically, after the battery management system controls the vehicle to be controlled to enter the pre-limp mode, the battery management system sends a notification 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 receives reminding information which can be pushed for a user, such as 'the vehicle is about to enter the limp mode, and the vehicle is required to be driven carefully'.
Further, after the vehicle to be controlled enters the pre-limp mode, the battery management system starts timing for 30 minutes (calibration), so that a user has enough time to drive to a convenient parking area, and after the timing 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 a command to exit limp home is received within 30 minutes, the battery management system controls the vehicle to be controlled to directly enter Normal mode (Normal).
Specifically, in an embodiment, in order to further ensure driving safety of the vehicle to be controlled, the battery management system may detect a current SOC state of the vehicle to be controlled after receiving the lameness 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 meet the preset control standard, if the current SOC state is lower than 10%, the vehicle to be controlled is controlled to enter a limp mode, and the user may misunderstand that the vehicle is limp due to low electric quantity, which is not beneficial to guaranteeing user experience.
Specifically, when the current SOC state of the vehicle to be controlled satisfies a preset control criterion, the vehicle to be controlled is caused to enter a limp-home mode by limiting the discharge power of the vehicle to be controlled, and at the same time, a display screen such as an instrument panel displays "the vehicle enters the limp-home mode".
Specifically, in an embodiment, the current 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 speed is less than a preset speed threshold, for example 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 is conveniently re-started, so as to further reduce the maintenance cost of the vehicle, and as an implementation manner, in an embodiment, the internet of vehicles background can also send a limp-home release instruction to the internet of vehicles terminal module of the vehicle to be controlled.
Correspondingly, the vehicle networking terminal module receives the limp release instruction, generates a limp release message corresponding to the limp release instruction according to a preset control message packaging standard, and sends the limp release message to the battery management system; and the battery management system receives the limp release message and controls the vehicle to be controlled to enter the pre-normal mode according to the limp release message.
It should be noted that, the control of the vehicle to be controlled into the pre-normal mode is to prevent the unexpected acceleration of the vehicle from affecting the driving safety of the vehicle. As shown in fig. 4, in the vehicle mode transition diagram provided by the embodiment of the 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 the vehicle to be controlled is started again to enter the normal mode.
Specifically, when the user can apply for the limp-home release mode after completing payment, the internet of vehicles backstage sends a limp-home release instruction to the internet of vehicles terminal module of the vehicle to be controlled, and the transmission and execution flow of the limp-home release instruction are the same as those of the limp-home release instruction, and are not repeated here.
Specifically, in an 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 wakes up again to keep the state before the last dormancy, that is, the vehicle to be controlled is extinguished in the limp mode, and the vehicle to be controlled is re-ignited and still remains in the limp mode.
The vehicle running control system provided by the embodiment of the application comprises: the system comprises a car networking background, a car networking terminal module and a battery management system; the internet of vehicles background is used for sending a limp command to an internet of vehicles terminal module of a vehicle to be controlled; the vehicle networking terminal module is used for receiving the limp command, generating a limp control message corresponding to the limp command according to a preset control message packaging standard, and sending the limp control message to the battery management system; the battery management system is used for receiving the limp control message, and limiting the discharge power of the vehicle to be controlled according to the limp control message so as to enable the vehicle to be controlled to enter a limp mode. According to the system provided by the scheme, when the vehicle is required to be limited to run, the limp command is sent to the vehicle networking terminal module of the vehicle to be controlled, and the vehicle to be controlled is controlled to enter the limp mode, so that the damage to the hardware circuit of the vehicle caused by the vehicle limiting operation is avoided, and the maintenance cost of the vehicle is reduced. And the entering and exiting of the limp mode considers the information such as the current speed, the SOC and the like, namely, the requirement of functional safety is met, the release of the limp mode does not need to go to a specific repair shop, and a user does not need to perform additional operation, so that the vehicle to be controlled is 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 loan or rent on time, and the like, wherein an 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 the Internet of vehicles.
As shown in fig. 5, a flow chart of a vehicle driving control method according to an embodiment of the present application is shown, where the method includes:
Step 501, a limp command is sent to a vehicle networking terminal module of a vehicle to be controlled; wherein the vehicle to be controlled is a vehicle with arrearage;
Step 502, based on the internet of vehicles terminal module, generating a limp control message corresponding to a limp command according to a preset control message packaging standard, and sending the limp 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 limp control message, and the vehicle to be controlled enters a limp mode.
Specifically, in an embodiment, the method further comprises:
Safety detection is carried out on the claudication control message; under the condition that the claudication control message passes the safety detection, an authentication instruction is sent to the Internet of vehicles terminal module; verifying the identity of the vehicle networking terminal module according to the authentication instruction execution result fed back by the vehicle networking terminal module; and forwarding the claudication control message to the battery management system under the condition that the identity of the terminal module of the Internet of vehicles is legal.
Specifically, in an embodiment, the safety detection of the claudication control message includes:
and carrying out safety detection on the lameness control message according to the message composition information of the lameness control message.
Specifically, in an embodiment, the method further comprises:
Receiving a heartbeat signal sent by a vehicle networking terminal module; every time a heartbeat signal is received, carrying out zero resetting treatment on a preset timer; when the timing quantity of the preset timer reaches a preset duration 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-home mode.
Specifically, in an 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-limp mode, and pushing corresponding reminding information on a display screen of the vehicle to be controlled.
Specifically, in an embodiment, after receiving the lameness 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 the pre-limp mode.
Specifically, in an embodiment, the method further comprises:
Sending a limp-home release instruction to a vehicle networking terminal module of a vehicle to be controlled;
Based on the vehicle networking terminal module, generating a limp release message corresponding to a limp release instruction according to a preset control message packaging standard, and sending the limp release message to a battery management system; and the battery management system controls the vehicle to be controlled to enter a pre-normal mode according to the limp release message.
With respect to the vehicle running control method in the present embodiment, the specific implementation of each step has been described in detail in the embodiment concerning the system, and will not be explained in detail here.
The vehicle running control method provided by the embodiment of the application is an application method of the vehicle running control system provided by the embodiment, and the implementation mode and principle are the same and are not repeated.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.
Claims (10)
1. A vehicle travel control system, characterized by comprising: the system comprises a car networking background, a car networking terminal module and a battery management system;
The internet of vehicles background is used for sending a limp command to an internet of vehicles 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 limp command, generating a limp control message corresponding to the limp command according to a preset control message packaging standard, and sending the limp control message to the battery management system;
The battery management system is used for receiving the limp control message, limiting the discharge 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 claudication control message; sending an authentication instruction to the internet of vehicles terminal module under the condition that the lameness control message passes the safety detection; verifying the identity of the Internet of vehicles terminal module according to the authentication instruction execution result fed back by the Internet of vehicles terminal module; and forwarding the claudication 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 internet of vehicles 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 authentication instruction execution result to the vehicle body controller.
4. The system according to claim 2, wherein the body controller is specifically configured to:
and carrying out safety detection on the lameness control message according to the message composition information of the lameness control message.
5. The system of claim 2, further comprising:
And the gateway is used for receiving the claudication control message sent by the Internet of vehicles terminal module to the vehicle body controller and forwarding the claudication control message to the vehicle body controller.
6. The system of claim 1, wherein the internet of vehicles 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; carrying out zero resetting treatment on a preset timer every time one heartbeat signal is received;
And when the timing quantity of the preset timer reaches a preset duration 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-home mode.
7. The system of claim 1, wherein the battery management system is further configured to:
before limiting the discharge power of the vehicle to be controlled, controlling the vehicle to be controlled to enter a pre-limp mode, and pushing corresponding reminding information on a display screen of the vehicle to be controlled.
8. The system according to claim 1, wherein the battery management system is specifically configured to:
Detecting the current SOC state of the vehicle to be controlled after receiving the lameness 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 a 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 background is further configured to:
Sending a limp-home release instruction to a vehicle networking terminal module of a vehicle to be controlled;
the internet of vehicles terminal module is further used for:
receiving the limp-home release instruction, generating a limp-home release message corresponding to the limp-home release instruction according to a preset control message packaging standard, and sending the limp-home release message to the battery management system;
The battery management system is further configured to:
And receiving the claudication release message, and controlling the vehicle to be controlled to enter a pre-normal mode according to the claudication release message.
10. A vehicle travel control method characterized by comprising:
sending a limp command to a vehicle networking terminal module of a vehicle to be controlled; wherein the vehicle to be controlled is a vehicle with arrearage;
Based on the Internet of vehicles terminal module, generating a limp control message corresponding to the limp command according to a preset control message packaging standard, and sending the limp control message 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.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113734173A (en) * | 2021-09-09 | 2021-12-03 | 东风汽车集团股份有限公司 | Intelligent vehicle monitoring method and device and storage medium |
| CN114619881A (en) * | 2022-02-17 | 2022-06-14 | 东风柳州汽车有限公司 | Remote vehicle locking method, device, storage medium and device |
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| CN102050027B (en) * | 2010-12-10 | 2013-08-07 | 深圳市元征软件开发有限公司 | Method for limiting speed of vehicle and vehicle-mounted device |
| KR20210075265A (en) * | 2019-12-12 | 2021-06-23 | 현대자동차주식회사 | Apparatus and method for controlling motor system for vehicle |
| EP3875300A1 (en) * | 2020-03-06 | 2021-09-08 | Volvo Car Corporation | Limp home mode for a battery electric vehicle |
| JP7294217B2 (en) * | 2020-04-03 | 2023-06-20 | トヨタ自動車株式会社 | Vehicle program update system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113734173A (en) * | 2021-09-09 | 2021-12-03 | 东风汽车集团股份有限公司 | Intelligent vehicle monitoring method and device and storage medium |
| CN114619881A (en) * | 2022-02-17 | 2022-06-14 | 东风柳州汽车有限公司 | Remote vehicle locking method, device, storage medium and device |
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