CN117302069A - Vehicle control method and control system - Google Patents
Vehicle control method and control system Download PDFInfo
- Publication number
- CN117302069A CN117302069A CN202311272593.2A CN202311272593A CN117302069A CN 117302069 A CN117302069 A CN 117302069A CN 202311272593 A CN202311272593 A CN 202311272593A CN 117302069 A CN117302069 A CN 117302069A
- Authority
- CN
- China
- Prior art keywords
- vehicle
- upgrading
- power
- ota
- control subsystem
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000012544 monitoring process Methods 0.000 claims description 11
- 230000006854 communication Effects 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 8
- 238000004378 air conditioning Methods 0.000 claims description 3
- 230000002688 persistence Effects 0.000 claims description 3
- 230000011664 signaling Effects 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 2
- 230000002159 abnormal effect Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 230000007175 bidirectional communication Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 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
- 230000004048 modification Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- B60R16/03—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 supply of electrical power to vehicle subsystems or for
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Selective Calling Equipment (AREA)
Abstract
The invention provides a vehicle control method and a control system, which are characterized in that when upgrading is confirmed, a first state signal is issued through a CAN network, the first state signal is used as a control instruction to instruct each load control subsystem to close a corresponding load, after the load is closed, the upgrading is started, after the upgrading is completed, a power-down instruction signal is issued to control the vehicle to power down, so that the power consumption of a storage battery by the system activity is ended. According to the vehicle control method and the control system, before upgrading, the power consumption load of the electric device is closed, standby power consumption of the whole vehicle electric device in the upgrading process is reduced, power consumption of a storage battery in the upgrading process is reduced, the risk of excessively low power of the storage battery is reduced, starting reliability of the vehicle after upgrading is improved, and use reliability of the vehicle with OTA functions is improved.
Description
Technical Field
The invention relates to the technical field of vehicle control, in particular to a vehicle control method and a vehicle control system.
Background
With the development of automobile intellectualization and networking, an Over-the-Air Technology (OTA) remote upgrading Technology has become a popular Technology, so that various performances of vehicles can be optimized rapidly and the optimization cost can be saved for host factories, the OTA configuration rate of the vehicles of each automobile host factory is gradually increased, and the functional experience of the software update of the vehicle-mounted electronic control devices is brought to customers.
In the prior art, in order to ensure the upgrade reliability in the OTA upgrade of a vehicle, the system needs to be ensured to be in a full power supply state, most of power loads configured by the vehicle are in a power-on state in the full power supply state, the electric quantity of a storage battery of the vehicle needs to be consumed, particularly on a vehicle type driven by pure fuel oil, the storage battery is used as a power supply for starting a motor, and if the electric quantity of the storage battery is excessively consumed by the vehicle in the OTA upgrade process, the situation that the electric quantity of the storage battery is excessively low is easily caused, so that the starting reliability of the vehicle is influenced.
Disclosure of Invention
Based on this, the invention aims to provide a vehicle control method and a control system, so as to reduce the consumption of the electric quantity of a storage battery in OTA upgrading of a vehicle and improve the reliability of the vehicle.
In one aspect, the present invention provides a vehicle control method, applied to a vehicle control system, where the vehicle control system includes an OTA vehicle-mounted terminal, and a load control subsystem and a power control subsystem that are communicatively connected with the OTA vehicle-mounted terminal through a CAN network, the vehicle control method includes:
when the OTA vehicle-mounted terminal receives an upgrading instruction, a first state signal is sent outwards through the CAN network;
the load control subsystem closes the corresponding load after receiving the first state signal, and feeds back a corresponding load closing success signal to the OTA vehicle-mounted terminal through the CAN network after successfully closing the corresponding load;
the OTA vehicle-mounted terminal also controls the vehicle control system to start upgrading when receiving a load closing success signal, and sends a power-down instruction signal outwards after the upgrading is successful;
and the power supply control subsystem monitors the state of each signal sent by the OTA vehicle-mounted terminal after receiving the first state signal, and controls the vehicle to be powered down when receiving the power-down instruction signal.
Optionally, the method further comprises: the power supply control subsystem also monitors the state of the first state signal sent by the OTA vehicle-mounted terminal, and when the first state signal is lost and the loss duration exceeds the preset loss judgment time, the power supply control subsystem exits monitoring the first state signal and controls the vehicle to power down after the preset delay time.
Optionally, the method further comprises:
the OTA vehicle-mounted terminal also sends a second state signal outwards after upgrading is successful;
and the power supply control subsystem also performs delay power-down timing when receiving the second state signal but not receiving the power-down instruction signal, and controls the vehicle to power down when the delay power-down timing reaches a preset delay time.
Optionally, the method further comprises: and when the OTA vehicle-mounted terminal receives an upgrading instruction, obtaining the expected upgrading time according to an upgrading target, starting timing of first upgrading time, stopping upgrading when the first upgrading time exceeds the expected upgrading time, and simultaneously sending the second state signal outwards.
Optionally, the method further comprises:
the OTA vehicle-mounted terminal also obtains the estimated upgrading time consumption according to the upgrading target and sends the estimated upgrading time consumption outwards through the CAN network;
and the power supply control subsystem also counts the time of second upgrading time when receiving the first state signal, and controls the vehicle to be powered down when the second upgrading time exceeds the predicted upgrading time.
Another aspect of the present invention provides a vehicle control system, including an OTA vehicle-mounted terminal, and a load control subsystem and a power control subsystem communicatively connected to the OTA vehicle-mounted terminal through a CAN network, wherein,
the OTA vehicle-mounted terminal is used for sending a first state signal outwards through the CAN network when receiving an upgrading instruction;
the load control subsystem is used for closing the corresponding load after receiving the first state signal, and feeding back a corresponding load closing success signal to the OTA vehicle-mounted terminal through the CAN network after successfully closing the corresponding load;
the OTA vehicle-mounted terminal is also used for controlling the vehicle control system to start upgrading when receiving a load closing success signal, and sending a power-down instruction signal outwards after the upgrading is successful;
the power supply control subsystem is used for monitoring the state of each signal sent by the OTA vehicle-mounted terminal after receiving the first state signal, and controlling the vehicle to be powered down when receiving the power-down instruction signal.
Optionally, the power supply control subsystem is further configured to use the first status signal as a timing trigger signal, time the upgrade time consumption, and control the vehicle to power down when the time duration of the upgrade time consumption exceeds the expected upgrade time consumption.
Optionally, the OTA vehicle-mounted terminal continuously sends the first state signal according to a message period of a CAN network;
the power supply control subsystem is also used for monitoring the persistence of the first state signal, carrying out power-down delay time when the first state signal is lost and the loss duration reaches the preset loss judgment time, and controlling the vehicle to power down when the duration of the power-down delay time exceeds the preset delay time.
Optionally, the OTA vehicle-mounted terminal is further configured to time the time for upgrading, and send a second status signal to the outside through the CAN network when the time duration for upgrading exceeds the expected time for upgrading;
the power supply control subsystem is also used for taking the second state signal as a timing trigger signal, carrying out power-down delay timing, and controlling the vehicle to power down when the power-down delay timing reaches the preset delay time.
Optionally, the load control subsystem comprises at least one of an instrument multimedia control subsystem, a body control subsystem, and an air conditioning control subsystem, wherein,
the control load of the meter multimedia control subsystem includes at least one of a screen and a speaker;
the control load of the vehicle body control subsystem comprises at least one of light, a washing wiper and a vehicle door;
the control load of the air conditioner control subsystem includes at least one of a blower, a compressor, and a tank electronic fan.
According to the vehicle control method provided by the invention, the OTA vehicle-mounted terminal is in communication connection with the plurality of load control subsystems and the power supply control subsystem through the CAN network, when the upgrading is confirmed, a first state signal is issued through the CAN network, the first state signal is used as a control instruction to instruct each load control subsystem to close a corresponding load, after the load is closed, the upgrading is started, after the upgrading is completed, a power-down instruction signal is issued to instruct the power supply control subsystem to control the power-down of the vehicle, and the active power consumption of the system is ended. Before the vehicle control system starts to upgrade, the power consumption load is closed, so that standby power consumption of the whole vehicle power utilization device in the upgrading process is reduced, power consumption of a storage battery in the upgrading process is reduced, risk of too low power of the storage battery is reduced, and starting reliability of the vehicle after upgrading is improved.
The vehicle control system provided by the invention turns off the power consumption load of the vehicle-mounted electric device before the upgrade starts, so that the electric quantity consumption of the electric device to the storage battery is reduced in the upgrade, the risk of too low electric quantity of the storage battery after the remote upgrade of the vehicle is reduced, and the starting reliability of the vehicle after the remote upgrade is further improved.
Drawings
Fig. 1 is a schematic diagram of a main system architecture of a vehicle control system according to an embodiment of the present invention.
Description of main reference numerals: remote server 1, OTA vehicle terminal 2, OTA control subsystem 21, instrument multimedia control subsystem 3, automobile body control subsystem 4, air conditioner control subsystem 5, power control subsystem 6.
The invention will be further described in the following detailed description in conjunction with the above-described figures.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Several embodiments of the invention are presented in the figures. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
In the prior art, in order to ensure the upgrade reliability in the OTA upgrade of a vehicle, the system needs to be ensured to be in a full power supply state, most of power loads configured by the vehicle are in a power-on state in the full power supply state, the electric quantity of a storage battery of the vehicle needs to be consumed, particularly on a vehicle type driven by pure fuel oil, the storage battery is used as a power supply for starting a motor, and if the electric quantity of the storage battery is excessively consumed by the vehicle in the OTA upgrade process, the situation that the electric quantity of the storage battery is excessively low is easily caused, so that the starting reliability of the vehicle is influenced. And for pure electric or hybrid electric vehicle types, the electric quantity consumption of the storage battery in the OTA upgrading process is not beneficial to the general energy-saving requirement of the whole vehicle.
Based on the problems in the prior art, the invention provides a vehicle control system and a vehicle control method, which utilize the communication function of a CAN network (Controller Area Network, a controller area network) between an OTA vehicle terminal and each load control subsystem, and control the OTA vehicle terminal to provide corresponding control instructions when in upgrading, issue the corresponding control instructions to each load control subsystem through the CAN network, instruct each load control subsystem to close the corresponding load, and then perform system upgrading after the load is closed, thereby eliminating a great amount of unnecessary power consumption of power consumption loads of the whole vehicle power utilization device in the system upgrading process and reducing the power consumption of a storage battery in the vehicle system upgrading process.
Referring to fig. 1, a schematic diagram of a main system architecture of a vehicle control system according to an embodiment of the invention is shown.
The vehicle control system of the embodiment mainly comprises an OTA vehicle-mounted terminal 2, an instrument multimedia control subsystem 3, a vehicle body control subsystem 4, an air conditioner control subsystem 5 and a power supply control subsystem 6.
The OTA in-vehicle terminal 2 is equipped with an OTA control subsystem 21, and the upgrade service provided by the OTA in-vehicle terminal includes: OTA version update checking, update package signature calculation, OTA update downloading progress reporting, OTA update result reporting, OTA update notification and the like, when the available version update is checked, the OTA update notification is carried out, when a user confirms the update, and corresponding interaction is executed, the user obtains an update instruction, executes an update flow, downloads the update package from the remote server 1 to the OTA vehicle-mounted terminal 2, and controls decompression, verification, installation and the like of the update package so as to update the vehicle-mounted software system.
The OTA upgrade notification is displayed on a vehicle-mounted central control screen, a touch button for confirming upgrade is displayed on the central control screen, and when a user presses the touch button, an upgrade program starts to be executed, wherein the upgrade is generally carried out when the user is idle, and after the upgrade is completed, the whole vehicle is powered down. Or according to the period of using the vehicle, after stopping, and when stopping for a long time, automatically starting an upgrading program, and after upgrading is completed, controlling the whole vehicle to be powered down.
The OTA vehicle-mounted terminal 2 is in bidirectional communication connection with the remote server 1, the instrument multimedia control subsystem 3, the vehicle body control subsystem 4 and the air conditioner control subsystem 5, performs communication tasks such as uploading and downloading through a remote communication protocol with the remote server 1, and performs bidirectional communication with the instrument multimedia control subsystem 3, the vehicle body control subsystem 4 and the air conditioner control subsystem 5 through a CAN network.
The vehicle control method provided by the invention is applied to the vehicle control system provided by the invention, and specifically comprises the following steps:
when the OTA vehicle-mounted terminal receives an upgrading instruction, a first state signal is sent outwards through the CAN network;
the load control subsystem closes the corresponding load after receiving the first state signal, and feeds back a corresponding load closing success signal to the OTA vehicle-mounted terminal through the CAN network after successfully closing the corresponding load;
the OTA vehicle-mounted terminal also controls the vehicle control system to start upgrading when receiving a load closing success signal, and sends a power-down instruction signal outwards after the upgrading is successful;
and the power supply control subsystem monitors the state of each signal sent by the OTA vehicle-mounted terminal after receiving the first state signal, and controls the vehicle to be powered down when receiving the power-down instruction signal.
In an ideal situation, when the OTA vehicle-mounted terminal 2 receives the upgrade instruction, the carried OTA control subsystem 21 identifies the upgrade instruction, after the identification, the OTA vehicle-mounted terminal 2 is set to an OTA mode, the OTA vehicle-mounted terminal 2 converts its own mode state into a first state signal in the form of a CAN message, and issues the first state signal through a CAN network, after each load control subsystem receives the first state signal, the corresponding load is controlled to be closed, after the load is successfully closed, a load closing success signal is fed back to the OTA vehicle-mounted terminal 2 through the CAN network, after the OTA vehicle-mounted terminal 2 receives all load closing success signals, after the preset load needing to be closed is identified to be successfully closed, the upgrading process is executed, and the vehicle-mounted software system is updated.
After the updating is completed, the OTA vehicle-mounted terminal 2 exits the OTA mode, returns to the normal mode, generates a power-down instruction signal at the same time, transmits the power-down instruction signal to the power control subsystem 6 through the CAN network, and instructs the power control subsystem 6 to control the power down of the whole vehicle.
First class fault response
In this embodiment, the power control subsystem 6 is further controlled to monitor the state of the first state signal sent by the OTA vehicle-mounted terminal 2, and when the first state signal is lost and the duration of the loss exceeds the preset loss determination time, the monitoring of the first state signal is exited, and after the preset delay time elapses, the vehicle is controlled to be powered down.
The first state signal is issued in the form of a CAN message, the CAN message is issued continuously with an issue period as an interval, the issue period is for example 100ms, the preset loss judgment time is for example 5s, when the power control subsystem 6 does not receive the next first state signal within 5s, the first state signal CAN be judged to be issued abnormally, the first state signal is updated abnormally, after a preset delay time, the vehicle is controlled to be powered down, and the continuous power consumption of the system to the storage battery under the abnormal condition is avoided. The preset delay time is, for example, 3 minutes.
Fault response of the second kind
In this embodiment, the OTA vehicle-mounted terminal 2 is further controlled to send a second status signal to the outside after the upgrade is successful;
and controlling the power supply control subsystem 6 to perform delay power-down timing when the second state signal is received but the power-down instruction signal is not received, and controlling the vehicle to power down when the delay power-down timing reaches a preset delay time.
That is, after the upgrade is successful, the OTA vehicle-mounted terminal 2 issues the second status signal and the power-down command signal simultaneously, and when any one of the second status signal and the power-down command signal is transmitted to the power control subsystem 6, the power control subsystem 6 can timely control the power down of the vehicle, so that the situation that the system cannot timely power down and continuously abnormally consumes the electric quantity of the storage battery when the power-down command signal is transmitted or generated abnormally is avoided.
Class III fault response
In this embodiment, the OTA on-board terminal 2 is further controlled to obtain the expected upgrade time according to the upgrade target when receiving the upgrade instruction, start timing of the first upgrade time, terminate the upgrade when the first upgrade time exceeds the expected upgrade time, and send the second status signal outwards.
The OTA vehicle-mounted terminal 2 counts the upgrading time, when the upgrading time exceeds the expected upgrading time, the OTA vehicle-mounted terminal 2 can directly judge that the upgrading is abnormal, the upgrading is needed to be stopped, after the upgrading is stopped, the OTA vehicle-mounted terminal 2 returns to the normal mode from the OTA mode, the state signal of the OTA vehicle-mounted terminal is converted into a second state signal from the first state signal, the second state signal is issued through the same channel, and the power supply control subsystem 6 can respond to the second state signal and control the vehicle to be powered down after time delay.
It can be understood that in the software upgrading and the conventional use of the system, the working modes are different, a certain time is required for mode switching, and abnormal interruption is not expected in mode switching, in this embodiment, the power control subsystem 6 controls the vehicle to power down after delay when the system is upgraded abnormally, so that a certain action time can be provided for the system to return to the conventional mode from the upgrading abnormally, abnormal failure of the system caused by abnormal power failure is avoided, thus the processing capability of the system to the abnormality is improved, and the fault tolerance of the system is improved.
In this embodiment, the OTA on-board terminal 2 further obtains an estimated upgrade time according to an upgrade target, and sends the estimated upgrade time to the outside through the CAN network;
and the power supply control subsystem 6 also counts the time for a second upgrade time when receiving the first status signal and the predicted upgrade consumption, and controls the vehicle to power down when the second upgrade time exceeds the predicted upgrade consumption.
The power supply control subsystem 6 is used for upgrading time-consuming monitoring, so that the monitoring reliability can be improved, and when the OTA vehicle-mounted terminal 2 is abnormal and only can continuously send the first state signal, the power supply control subsystem 6 can be used for directly judging the abnormality to control the vehicle to power down, so that the abnormal consumption of the system to the electric quantity of the storage battery is avoided.
In this embodiment, the load control subsystem includes at least one of an instrument multimedia control subsystem 3, a vehicle body control subsystem 4 and an air conditioner control subsystem 5, wherein a control load of the instrument multimedia control subsystem 3 includes at least one of a screen and a speaker; the control load 4 of the vehicle body control subsystem comprises at least one of light, a washing wiper and a vehicle door; the control load 5 of the air conditioning control subsystem includes at least one of a blower, a compressor, and a tank electronic fan. The energy consumption requirement of the power consumption load of each electric device can be effectively reduced when the system is upgraded.
The vehicle control system mainly comprises an OTA vehicle-mounted terminal, a load control subsystem and a power supply control subsystem which are in communication connection with the OTA vehicle-mounted terminal through a CAN network, wherein,
the OTA vehicle-mounted terminal is used for sending a first state signal outwards through the CAN network when receiving an upgrading instruction;
the load control subsystem is used for closing the corresponding load after receiving the first state signal, and feeding back a corresponding load closing success signal to the OTA vehicle-mounted terminal through the CAN network after successfully closing the corresponding load;
the OTA vehicle-mounted terminal is also used for controlling the vehicle control system to start upgrading when receiving a load closing success signal, and sending a power-down instruction signal outwards after the upgrading is successful;
the power supply control subsystem is used for monitoring the state of each signal sent by the OTA vehicle-mounted terminal after receiving the first state signal, and controlling the vehicle to be powered down when receiving the power-down instruction signal.
In this embodiment, the power control subsystem is further configured to use the first status signal as a timing trigger signal, time the upgrade time consumption, and control the vehicle to power down when the time duration of the upgrade time consumption exceeds the expected upgrade time consumption.
In this embodiment, the OTA vehicle-mounted terminal continuously sends the first state signal according to a message period of a CAN network;
the power supply control subsystem is also used for monitoring the persistence of the first state signal, carrying out power-down delay time when the first state signal is lost and the loss duration reaches the preset loss judgment time, and controlling the vehicle to power down when the duration of the power-down delay time exceeds the preset delay time.
In this embodiment, the OTA vehicle-mounted terminal is further configured to time the time for upgrading, and send a second status signal to the outside through the CAN network when the time duration for upgrading time exceeds the expected time for upgrading;
the power supply control subsystem is also used for taking the second state signal as a timing trigger signal, carrying out power-down delay timing, and controlling the vehicle to power down when the power-down delay timing reaches the preset delay time.
In one embodiment, the CAN matrix is as shown in table 1.
Table 1: matrix definition schematic
The four signal values of the vehicle mode signal TBOX_CarMode define 0x0, 0x1, 0x2 and 0x3, and correspond to a normal mode, an OTA mode, a reserved mode and an error mode respectively, and a whole vehicle system works normally in the normal mode; in the OTA mode, resource scheduling tends to upgrade the pointing of tasks while stopping or interrupting other tasks, avoiding mutual interference between tasks. In this embodiment, the first status signal is a vehicle mode signal tbox_carmode with a signal value defined as 0x1, the second status signal is a vehicle mode signal tbox_carmode with a signal value defined as 0x0, and the vehicle mode and the estimated time consumption are respectively converted into a vehicle mode signal tbox_carmode and an OTA time signal tbox_otatime signal of the CAN message and then issued simultaneously.
The vehicle control method provided by the invention utilizes the CAN network to connect the OTA vehicle-mounted terminal with the plurality of load control subsystems and the power supply control subsystem in a communication way, when the upgrading is confirmed, the OTA vehicle-mounted terminal is controlled to issue a first state signal through the CAN network, the first state signal is used as a control instruction to instruct each load control subsystem to close the corresponding load, after the load is closed, the upgrading is started, after the upgrading is finished, a power-down instruction signal is issued to instruct the power supply control subsystem to control the vehicle to power down, and the system activity power consumption is ended. Before the vehicle control system starts to upgrade, the power consumption load is closed, so that standby power consumption of the whole vehicle power utilization device in the upgrading process is reduced, power consumption of a storage battery in the upgrading process is reduced, risk of too low power of the storage battery is reduced, and starting reliability of the vehicle after upgrading is improved.
The vehicle control system provided by the invention turns off the power consumption load of the vehicle-mounted electric device before the upgrade starts, so that the electric quantity consumption of the electric device to the storage battery is reduced in the upgrade, the risk of too low electric quantity of the storage battery after the remote upgrade of the vehicle is reduced, and the starting reliability of the vehicle after the remote upgrade is further improved.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing examples illustrate only a few specific embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. The vehicle control method is characterized by being applied to a vehicle control system, wherein the vehicle control system comprises an OTA vehicle-mounted terminal, and a load control subsystem and a power supply control subsystem which are in communication connection with the OTA vehicle-mounted terminal through a CAN network, and the vehicle control method comprises the following steps:
when the OTA vehicle-mounted terminal receives an upgrading instruction, a first state signal is sent outwards through the CAN network;
the load control subsystem closes the corresponding load after receiving the first state signal, and feeds back a corresponding load closing success signal to the OTA vehicle-mounted terminal through the CAN network after successfully closing the corresponding load;
when the OTA vehicle-mounted terminal receives a load closing success signal, the OTA vehicle-mounted terminal controls the vehicle control system to start upgrading, and after the upgrading is successful, a power-down instruction signal is sent outwards;
and the power supply control subsystem monitors the state of each signal sent by the OTA vehicle-mounted terminal after receiving the first state signal, and controls the vehicle to be powered down when receiving the power-down instruction signal.
2. The vehicle control method according to claim 1, characterized by further comprising: the power supply control subsystem also monitors the state of the first state signal sent by the OTA vehicle-mounted terminal, and when the first state signal is lost and the loss duration exceeds the preset loss judgment time, the power supply control subsystem exits monitoring the first state signal and controls the vehicle to power down after the preset delay time.
3. The vehicle control method according to claim 1, characterized by further comprising:
the OTA vehicle-mounted terminal also sends a second state signal outwards after upgrading is successful;
and the power supply control subsystem also performs delay power-down timing when receiving the second state signal but not receiving the power-down instruction signal, and controls the vehicle to power down when the delay power-down timing reaches a preset delay time.
4. The vehicle control method according to claim 3, characterized by further comprising: and when the OTA vehicle-mounted terminal receives an upgrading instruction, obtaining the expected upgrading time according to an upgrading target, starting timing of first upgrading time, stopping upgrading when the first upgrading time exceeds the expected upgrading time, and simultaneously sending the second state signal outwards.
5. The vehicle control method according to claim 1, characterized by further comprising:
the OTA vehicle-mounted terminal also obtains the estimated upgrading time consumption according to the upgrading target and sends the estimated upgrading time consumption outwards through the CAN network;
and the power supply control subsystem also counts the time of second upgrading time when receiving the first state signal, and controls the vehicle to be powered down when the second upgrading time exceeds the predicted upgrading time.
6. A vehicle control system is characterized by comprising an OTA vehicle-mounted terminal, a load control subsystem and a power supply control subsystem which are in communication connection with the OTA vehicle-mounted terminal through a CAN network, wherein,
the OTA vehicle-mounted terminal is used for sending a first state signal outwards through the CAN network when receiving an upgrading instruction;
the load control subsystem is used for closing the corresponding load after receiving the first state signal, and feeding back a corresponding load closing success signal to the OTA vehicle-mounted terminal through the CAN network after successfully closing the corresponding load;
the OTA vehicle-mounted terminal is also used for controlling the vehicle control system to start upgrading when receiving a load closing success signal, and sending a power-down instruction signal outwards after the upgrading is successful;
the power supply control subsystem is used for monitoring the state of each signal sent by the OTA vehicle-mounted terminal after receiving the first state signal, and controlling the vehicle to be powered down when receiving the power-down instruction signal.
7. The vehicle control system of claim 6, wherein the power control subsystem is further configured to use the first status signal as a timing trigger signal to time the upgrade elapsed time and to control the vehicle to power down when the time duration of the upgrade elapsed time exceeds the expected upgrade elapsed time.
8. The vehicle control system of claim 6, wherein,
the OTA vehicle-mounted terminal continuously transmits the first state signal according to the message period of the CAN network;
the power supply control subsystem is also used for monitoring the persistence of the first state signal, carrying out power-down delay time when the first state signal is lost and the loss duration reaches the preset loss judgment time, and controlling the vehicle to power down when the duration of the power-down delay time exceeds the preset delay time.
9. The vehicle control system of claim 8, wherein,
the OTA vehicle-mounted terminal is also used for timing the time consumption of upgrading and sending a second state signal outwards through the CAN network under the condition that the time duration of the time consumption of upgrading exceeds the expected time consumption of upgrading;
the power supply control subsystem is also used for taking the second state signal as a timing trigger signal, carrying out power-down delay timing, and controlling the vehicle to power down when the power-down delay timing reaches the preset delay time.
10. The vehicle control method of claim 6, wherein the load control subsystem comprises at least one of an instrument multimedia control subsystem, a body control subsystem, and an air conditioning control subsystem, wherein,
the control load of the meter multimedia control subsystem includes at least one of a screen and a speaker;
the control load of the vehicle body control subsystem comprises at least one of light, a washing wiper and a vehicle door;
the control load of the air conditioner control subsystem includes at least one of a blower, a compressor, and a tank electronic fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311272593.2A CN117302069A (en) | 2023-09-28 | 2023-09-28 | Vehicle control method and control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311272593.2A CN117302069A (en) | 2023-09-28 | 2023-09-28 | Vehicle control method and control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117302069A true CN117302069A (en) | 2023-12-29 |
Family
ID=89242082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311272593.2A Pending CN117302069A (en) | 2023-09-28 | 2023-09-28 | Vehicle control method and control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117302069A (en) |
-
2023
- 2023-09-28 CN CN202311272593.2A patent/CN117302069A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107222517B (en) | Remote upgrading system and remote upgrading method for battery management system software | |
| CN109421541B (en) | Electric automobile power-on method based on wake-up source | |
| CN107295025B (en) | Vehicle-mounted terminal awakening system and method, vehicle-mounted terminal, vehicle and server | |
| CN107539061B (en) | Control method and control system of vehicle-mounted air conditioner and vehicle | |
| CN106103200B (en) | Controller, the method for motor vehicle and operation controller with the controller | |
| CN112134926B (en) | Vehicle-mounted equipment upgrading system and method | |
| CN106564402B (en) | Method and system for remotely controlling vehicle based on mobile terminal and electric automobile | |
| US7209490B2 (en) | Rapid vehicle bus network activity | |
| CN110329037B (en) | Control method of parking air conditioner | |
| CN112188417A (en) | OTA vehicle upgrade execution condition dynamic configuration method | |
| CN113448302A (en) | Control method and device of vehicle controller and automobile | |
| CN113787980A (en) | Vehicle power distribution system, power distribution method, vehicle, and storage medium | |
| CN210309937U (en) | Vehicle-mounted power supply control system and electric vehicle | |
| CN117302069A (en) | Vehicle control method and control system | |
| CN212555742U (en) | Wireless control device for air conditioner of excavator and vehicle-mounted air conditioner | |
| CN113844394B (en) | Vehicle remote activation system and method | |
| CN115675087A (en) | Power distribution control method, device, equipment and storage medium for new energy commercial vehicle assembly | |
| CN105068527A (en) | Electric equipment monitoring method and system of automobile | |
| CN115390539A (en) | Vehicle abnormal dormancy diagnosis method and device, vehicle and storage medium | |
| CN114684046A (en) | Power management system for abnormal state of vehicle and using method | |
| CN210118825U (en) | Air conditioning system and indoor unit | |
| CN112389199A (en) | Vehicle-mounted power supply control system, electric vehicle and vehicle-mounted power supply control method | |
| CN114379483A (en) | CAN network management method for new energy automobile | |
| CN111959230A (en) | Parking air conditioner control method and device, storage medium and parking air conditioner | |
| CN112822634A (en) | Remote interaction method and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |