CN115991097A - Vehicle monitoring power distribution method, device and storage medium - Google Patents
Vehicle monitoring power distribution method, device and storage medium Download PDFInfo
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Abstract
The application relates to a vehicle monitoring power distribution method, device and storage medium, and relates to the technical field of vehicle batteries, wherein the vehicle monitoring power distribution method comprises the following steps: when the vehicle is in a target parking state, determining a wake-up waiting time length corresponding to the vehicle, and if the wake-up waiting time length accords with a preset wake-up condition, setting a state of a monitoring conversion module of the vehicle to be a wake-up state, wherein the monitoring conversion module is used for outputting a first power supply signal to a main control module of the vehicle according to a first voltage signal of the vehicle in the wake-up state, and the first power supply signal is used for triggering the main control module to monitor battery fault information. Therefore, the first power supply signal is output to the main control module through the monitoring transmission module, so that the main control module obtains the battery fault information based on the first power supply signal, and the monitoring of the main control module to the battery of the vehicle is realized.
Description
Technical Field
The application relates to the technical field of vehicle batteries, in particular to a vehicle monitoring and power distribution method, device and storage medium.
Background
With the popularization and application of new energy electric vehicles, great convenience is brought to the travel of masses, and meanwhile, a plurality of safety accidents exist, wherein the most serious safety accident is a fire event, and most of the fire causes come from a power battery system.
Specifically, the new energy power vehicle monitors battery information mainly through a battery management system (Battery Management System, BMS) and uploads the battery information to a background monitoring platform for early warning. When the new energy power automobile is stopped and powered off, the power battery system is powered off, so that the BMS can not be powered on, the BMS can not monitor continuously, and the power battery is easy to fire. For example, the existing new energy power automobile mainly adopts a pentagon relay to isolate the low voltage output by the DCDC converter from the low voltage output by the whole automobile, but the power failure condition is easy to occur when the low voltage output by the DCDC converter and the low voltage output by the whole automobile are converted, so that the low voltage output by the DCDC converter or the whole automobile cannot normally supply power for the BMS main control, at the moment, the BMS main control cannot output a wake-up signal to the DCDC converter due to abnormal power supply, the DCDC converter cannot receive the wake-up signal and cannot continue to supply power for the BMS main control, the whole monitoring system is in a paralysis state, a battery system is not controlled, and then the power battery fire event cannot be early warned, so that potential safety hazards exist.
Disclosure of Invention
To solve the above technical problems or at least partially solve the above technical problems, the present application provides a method for monitoring power distribution of a vehicle and related equipment.
In a first aspect, the present application provides a method for monitoring power distribution of a vehicle, including:
when the vehicle is monitored to be in a target parking state, determining the corresponding wake-up waiting time length of the vehicle;
if the wake-up waiting time accords with a preset wake-up condition, setting the state of the monitoring conversion module of the vehicle to be a wake-up state;
the monitoring conversion module is used for outputting a first power supply signal to a main control module of the vehicle according to a first voltage signal of the vehicle under a wake-up state;
the first power supply signal is used for triggering the main control module to monitor battery fault information.
Optionally, the method for monitoring and distributing power for a vehicle further includes:
acquiring a control signal of the vehicle;
if the control signal of the vehicle is a target control signal, determining a target state duration corresponding to the vehicle;
and if the target state duration accords with a preset target state condition, determining that the vehicle enters a target parking state.
Optionally, before setting the state of the monitoring conversion module of the vehicle to the wake state, the method further includes:
judging whether the awakening waiting time length reaches a preset waiting time length threshold value or not;
if the awakening waiting time length reaches the waiting time length threshold value, determining that the awakening waiting time length meets a preset awakening condition;
and if the awakening waiting time does not reach the waiting time threshold, setting the state of the monitoring conversion module of the vehicle to be a dormant state.
Optionally, after setting the state of the monitoring conversion module of the vehicle to the wake state, the method further includes:
determining power supply output duration corresponding to the monitoring conversion module based on the wake-up state;
and if the power supply output time length reaches a preset first power supply time length threshold value, switching the state of the monitoring conversion module from the awakening state to the dormant state so as to trigger the monitoring conversion module to stop outputting the first power supply signal to the main control module.
Optionally, before the state of the monitoring conversion module is switched from the awake state to the sleep state, the method further includes:
based on the awakening state, monitoring whether the monitoring conversion module receives target message information or not;
if the monitoring conversion module does not receive the target message information, judging whether the power supply output time length reaches a preset second power supply time length threshold value, wherein the second power supply time length threshold value is larger than the first power supply time length threshold value;
and if the power supply output time length reaches a preset second power supply time length threshold value, executing the step of switching the state of the monitoring conversion module from the awakening state to the dormant state.
Optionally, the target message information is message information sent by the main control module;
the main control module is used for monitoring battery fault information and outputting the battery fault information to the monitoring transmission module of the vehicle;
and the monitoring transmission module is used for sending the battery fault information to a monitoring server through a network.
Optionally, the monitoring server is configured to receive the battery fault information, and send alarm information corresponding to the vehicle to a target user terminal according to the battery fault information;
and the target user terminal is used for outputting according to the alarm information.
In a second aspect, the present application provides a monitored power distribution system for a vehicle, comprising: a wake-up waiting time period determining unit and a state setting unit;
the waiting time determining unit is used for determining the waiting time corresponding to the vehicle when the vehicle is in the target parking state;
the state setting unit is used for setting the state of the monitoring conversion module of the vehicle to be a wake-up state when the wake-up waiting time accords with a preset wake-up condition;
the monitoring conversion module is used for outputting a first power supply signal to a main control module of the vehicle according to a first voltage signal of the vehicle under a wake-up state;
the first power supply signal is used for triggering the main control module to monitor battery fault information.
In a third aspect, the present application also provides a vehicle including a monitoring power distribution system.
In a fourth aspect, the present application provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of a method of monitoring power distribution of a vehicle according to any one of the embodiments of the first aspect.
In summary, the method and the device determine the wake-up waiting time corresponding to the vehicle when the vehicle is in the target parking state, so that when the wake-up waiting time accords with the preset wake-up condition, the state of the monitoring conversion module of the vehicle is set to be the wake-up state, and the monitoring transmission module outputs the first power supply signal to the main control module, so that the main control module obtains the battery fault information based on the first power supply signal and outputs the battery fault information to the monitoring transmission module, and the main control module can trigger the monitoring of the vehicle battery in the state that the vehicle is parked for a long time, thereby solving the problems that the monitoring system is in a paralysis state and the vehicle battery system is not controlled due to abnormal BMS main control power supply in the prior art, enabling the vehicle battery system to be in the controlled state all the time, and further timely early warning the power battery fire event, and improving the safety of the vehicle.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic flow chart of a method for monitoring power distribution of a vehicle according to an embodiment of the present application;
FIG. 2 is a flow chart of steps of a method of monitoring power distribution of a vehicle according to an alternative embodiment of the present application;
FIG. 3 is a block diagram of a vehicle monitoring and power distribution system according to an embodiment of the present application;
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.
Fig. 1 is a flow chart of a method for monitoring power distribution of a vehicle according to an embodiment of the present application. As shown in fig. 1, the method for monitoring power distribution of a vehicle provided by the present application specifically may include the following steps:
step 110, determining a corresponding wake-up waiting time length of the vehicle when the vehicle is in a target parking state.
Specifically, the target parking state of the vehicle may be a parking time period set in a state where the vehicle is currently in a parking state, and after the vehicle is in a parking state and the parking time reaches the parking time period, the parking state of the vehicle may be determined to be the target parking state, and then a wake-up waiting time period corresponding to the vehicle may be determined by a timer. The wake-up waiting time length may be a time length calculated after the vehicle is in the target parking state, and the wake-up waiting time length corresponding to the vehicle may be used to determine whether a wake-up condition of the monitoring conversion module is currently satisfied, so as to set the monitoring conversion module to the wake-up state.
For example, it may be set that the vehicle is in the target parking state five minutes after the vehicle is in the parking state, and calculation of the wake-up waiting time period corresponding to the vehicle may be started in the case where the vehicle is in the target parking state, for example, one hour after the vehicle is in the target parking state, and the wake-up waiting time period corresponding to the vehicle may be determined to be one hour, which is not limited in this example.
Further, in the embodiment of the present application, determining whether the vehicle is in the target stop state may specifically include the following sub-steps:
substep 1101 obtains a control signal for the vehicle.
Specifically, the current state of the vehicle may be determined by acquiring a control signal of the vehicle. In the embodiment of the present application, the control signal of the vehicle may include a start signal of the vehicle, a charge signal of the vehicle, or the like, which is not particularly limited in the embodiment of the present application.
In the actual processing, when the current vehicle is in a running state or the vehicle is in a starting state, a start signal of the vehicle may be detected, and thus the start signal of the vehicle may be acquired as a control signal of the vehicle. Similarly, when the front vehicle is in a charged state, a charging signal of the vehicle may be acquired as a control signal of the vehicle. After the control signal of the vehicle is acquired, whether the currently acquired control signal is the target control signal may be determined by judging whether the acquired control signal is valid. The target control signal refers to an effective control signal. Specifically, if the acquired control signal is valid, that is, when the acquired control signal is a valid control signal, the currently acquired control signal may be determined to be the target control signal; if the acquired control signal is invalid, that is, if the acquired control signal is an invalid control signal, for example, if an invalid start signal is acquired, it may be determined that the currently acquired control signal is a non-target control signal. It can be seen that the target control signal in embodiments of the present application may include an active vehicle start signal and/or an active vehicle charge signal.
Substep 1102, if the control signal of the vehicle is a non-target control signal, determining a target state duration corresponding to the vehicle.
Specifically, in the case where the acquired control signal of the vehicle is a non-target control signal, the target state duration corresponding to the vehicle may be further determined, and the target state duration may be a duration calculated from the start of parking of the vehicle.
Substep 1103, if the target state duration meets a preset target state condition, determining that the vehicle enters a target parking state.
Specifically, a target state condition may be preset, where the target state condition may be used to determine whether the current vehicle enters the target parking state, and when the vehicle is in the parking state, whether the vehicle enters the target parking state may be determined by determining whether the target state duration of the current vehicle meets the preset target state condition. If the target state duration meets the preset target state condition, the vehicle can be determined to enter the target parking state. If the target state duration does not meet the preset target state condition, the vehicle can be determined not to enter the target parking state
For example, the preset target state condition of the vehicle may be: and when the vehicle is in a parking state, no corresponding target control signal of the vehicle is acquired within five minutes, and the vehicle state is determined to accord with the preset target state condition. In the actual processing, if the current vehicle is in a parking state and the vehicle control signals acquired within five minutes are all non-target control signals, it can be determined that the target state duration corresponding to the vehicle meets the preset target state condition, and at the moment, it can be determined that the vehicle enters the target parking state.
And 120, if the wake-up waiting time accords with a preset wake-up condition, setting the state of the monitoring conversion module of the vehicle to be a wake-up state.
The monitoring conversion module is used for outputting a first power supply signal to the main control module of the vehicle according to the first voltage signal of the vehicle in an awake state.
Specifically, the preset wake-up condition may be a wake-up condition preset by the monitoring conversion module, in this embodiment, the monitoring conversion module may be a DCDC monitoring conversion module, and the wake-up condition preset by the DCDC monitoring conversion module may be factory set or may be set according to an actual power supply requirement. When the wake-up waiting time length corresponding to the vehicle accords with the preset wake-up condition, the monitoring conversion module of the vehicle can be set to be in a wake-up state from a sleep state.
In specific implementation, the first voltage signal of the vehicle can be provided by the battery module of the vehicle, the first voltage signal provided by the battery module can be subjected to voltage conversion when the DCDC monitoring conversion module is in a wake-up state, and the voltage signal obtained after conversion is used as a first power supply signal and is output to the main control module, so that the first voltage signal provided by the power module of the vehicle is converted into a first power supply signal required by the main control module to supply power for the main control module.
In an optional embodiment of the present application, before setting the monitoring conversion module of the vehicle to the awake state, the foregoing may further include the following substeps:
sub-step 1201, determining whether the wake-up waiting duration reaches a preset waiting duration threshold.
Sub-step 1202, determining that the wakeup waiting time length meets a preset wakeup condition if the wakeup waiting time length reaches the waiting time length threshold.
Specifically, the preset waiting time threshold in the initial wake-up condition of the DCDC monitoring conversion module may be set to one hour or other time, that is, after the vehicle is in the target parking state for one hour, it may be determined that the wake-up waiting time reaches the preset waiting time threshold in the wake-up condition, and then the state of the DCDC monitoring conversion module may be set to the wake-up state. In practical treatment, in order to save the power of the vehicle battery, so that the vehicle battery can be in a monitoring state all the time in the long-term parking process of the vehicle, the preset waiting time threshold in the wake-up condition of the DCDC monitoring conversion module can be sequentially increased, for example, the initial waiting time threshold can be one hour, then two hours, four hours and eight hours are sequentially increased, and when the power reaches eight hours, the preset waiting time threshold can be all eight hours and is unchanged, so that the power of the vehicle is saved.
Of course, the waiting duration threshold may be set to other times, and the changing manner of the waiting duration threshold may be sequentially increasing, or may be random time or not, which is not limited in this embodiment of the present application.
Sub-step 1203, if the wake-up waiting time period does not reach the waiting time period threshold, setting the state of the monitoring conversion module of the vehicle to be a dormant state.
Specifically, when the wake-up waiting duration does not reach the preset waiting duration threshold, the state of the monitoring conversion module of the vehicle may be set to a sleep state, if the current wake-up waiting duration may be 30 minutes and the preset waiting duration threshold may be one hour, it may be determined that the current wake-up waiting duration does not reach the preset waiting duration threshold, and the state of the monitoring conversion module of the vehicle may be set to the sleep state. If the current state of the monitoring and converting module of the current vehicle is already in the dormant state, the state of the monitoring and converting module may not be changed. In a specific implementation, the sleep state of the monitoring conversion module may be used to control the monitoring conversion module to stop outputting the first power supply signal to the main control module, and when the monitoring conversion module is in the sleep state, the monitoring conversion module may stop outputting the first power supply signal to the main control module, so as to save the electric quantity of the vehicle battery.
In actual processing, the DCDC monitoring conversion module may further have an under-voltage protection function, and a protection voltage value may be set in the DCDC monitoring conversion module in advance, and when the DCDC monitoring conversion module is in an awake state, if the voltage value corresponding to the received first voltage signal is lower than the protection voltage value, the DCDC monitoring conversion module may enter a shutdown state to protect the power module and the DCDC monitoring conversion module, thereby increasing the safety of the circuit.
And 130, triggering the main control module to monitor battery fault information by the first power supply signal.
In this embodiment of the application, the main control module can be BMS main control module, and after BMS main control module received the first power supply signal of DCDC control conversion module output, BMS main control module can monitor vehicle battery according to this first power supply signal to acquire vehicle battery's battery fault information, thereby realized at the in-process that the vehicle parked, monitor the power module of vehicle.
In the actual processing, the battery failure information of the vehicle battery may include the current battery voltage, the battery standard voltage, the current battery temperature, the battery current, the use time, the operating time, the battery capacity, and the like, which is not limited in this embodiment.
In sum, the embodiment of the application determines that the wake-up waiting time length of the vehicle accords with the preset wake-up condition by determining that the vehicle is in the target parking state, so that the state of the DCDC monitoring conversion module of the vehicle is set to be the wake-up state, and the DCDC monitoring conversion module can output a first power supply signal to the BMS main control module of the vehicle according to the first voltage signal of the vehicle in the wake-up state, so that the BMS main control module detects battery fault information, the battery fault information of the vehicle is monitored in real time in the long-term parking process of the vehicle, the problem that the monitoring function of the monitoring power distribution system fails due to power failure or power supply abnormality of the BMS system in the prior art is solved, and the safety and reliability of the overall design of the battery system are improved.
Referring to fig. 2, a schematic flow chart of steps of a method for monitoring power distribution of a vehicle according to an alternative embodiment of the present application is shown. The method for monitoring the power distribution of the vehicle can specifically comprise the following steps:
step 210, determining a wake-up waiting duration corresponding to the vehicle when the vehicle is in the target parking state.
The monitoring conversion module is used for outputting a first power supply signal to the main control module of the vehicle according to the first voltage signal of the vehicle under the wake-up state.
Specifically, the power supply output duration may be a duration of outputting the first power supply signal to the main control module by the monitoring conversion module, and further, a first power supply duration threshold may be preset for the monitoring conversion module and/or the main control module, for example, the first power supply duration threshold may be set to 5 minutes, which is not limited in this application. In addition, the monitoring conversion module and the main control module can have timing functions, so that the monitoring conversion module and/or the main control module can calculate the power supply output duration of the monitoring conversion module.
In a specific implementation, when the vehicle is in a target parking state and the wake-up waiting time in the monitoring conversion module accords with a preset wake-up condition, the state of the monitoring conversion module can be set to be a wake-up state, and a first power supply signal is output to the main control module according to a first voltage signal, at the moment, the main control module starts to calculate the power supply output time of the monitoring conversion module according to the received first power supply signal, and when the monitoring conversion module and/or the main control module calculate that the power supply output time corresponding to the current monitoring conversion module reaches a corresponding threshold value reaching the first power supply time, the main control module can output a target message to the monitoring conversion module in a local area network, bluetooth or other modes so as to control the monitoring conversion module to switch from the wake-up state to the sleep state and trigger the monitoring conversion module to stop outputting the first power supply signal to the main control module.
In actual processing, the target message output by the main control module may include a next wake-up duration threshold, a control instruction, and the like. The control instruction can be used for controlling the monitoring conversion module to switch from the wake-up state to the sleep state, and the monitoring conversion module can determine whether to enter the sleep state according to the control instruction control, so that the first power supply signal is stopped from being output to the main control module. The next wake-up time threshold can be used for setting a waiting time threshold in a wake-up condition of the monitoring conversion module, specifically, the next wake-up time threshold can be sequentially set to one hour, two hours, four hours, eight hours and the like, the next wake-up time threshold can be always eight hours after reaching eight hours, the next wake-up time threshold is not increased any more, the monitoring conversion module can utilize the next wake-up time threshold contained in the message sent by the main control module, the modification of the waiting time threshold in the wake-up condition of the monitoring conversion module is achieved, and the purpose of saving the electric quantity of the battery module of the vehicle is achieved on the premise that the power supply of the main control module is guaranteed.
In one embodiment, the monitoring conversion module and the main control module may be connected through a message, and the monitoring conversion module may switch from the awake state to the sleep state according to the message sent by the main control module, and modify the waiting duration threshold in the awake condition. Specifically, before the state of the monitoring transition module is switched from the awake state to the sleep state, the method may further include the following sub-steps:
in step 2401, based on the wake-up state, it is monitored whether the monitoring conversion module receives the target message information.
Specifically, the monitoring conversion module can determine whether the communication with the main control module is normal by monitoring whether the target message information sent by the main control module is received or not in the wake-up state. Specifically, a message confirmation time length can be preset by the monitoring conversion module, if the monitoring conversion module does not receive the target message information sent by the main control module within the preset message confirmation time length, communication disconnection with the main control module can be determined, and the monitoring conversion module can make countermeasures under the condition of communication disconnection.
In the actual processing, the monitoring conversion module is in the wake-up state, and the main control module may be configured to send target message information to the monitoring conversion module every 250 milliseconds, where the target message information may include a target message, and the target message may include a next wake-up duration threshold, a control instruction, and the like. The message confirmation duration preset by the monitoring conversion module can be 5 seconds, namely, the monitoring conversion module does not receive the target message information sent by the main control module within 5 seconds, and communication loss with the main control module can be determined.
Furthermore, in order to ensure that the monitoring conversion module can still normally sleep and wake up next time under the condition of communication disconnection, the monitoring conversion module can be provided with a memory so as to realize the function of storing a message or storing a threshold value of the next wake-up time. Specifically, the monitoring and converting module may record the next time of wake-up duration threshold included in the message sent by the main control module into the memory, so as to use the last time of wake-up duration threshold received next time as the waiting duration threshold in the wake-up condition.
Sub-step 2402, if the monitoring conversion module does not receive the target message information, determining whether the power supply output duration reaches a preset second power supply duration threshold, where the second power supply duration threshold is greater than the first power supply duration threshold.
Sub-step 2403, if the power supply output duration reaches a preset second power supply duration threshold, executing a step of switching the state of the monitoring conversion module from the wake-up state to the sleep state.
Specifically, the monitoring conversion module may preset a second power supply duration threshold, where the second power supply duration threshold may be greater than the first power supply duration threshold, and in the awake state, if the monitoring conversion module does not receive the target message information sent by the main control module beyond a preset time, it may determine that communication loss occurs between the monitoring conversion module and the main control module. Under the condition that communication is lost with the main control module, in order to ensure that the power supply of the main control module is normal, the monitoring conversion module can set the power supply time from the original first power supply time length threshold to the second power supply time length threshold, continuously output a first power supply signal to the main control module before the power supply output time length reaches the preset second power supply time length threshold, and when the power supply output time length reaches the preset second power supply time length threshold, the state of the monitoring conversion module can be switched from the awakening state to the dormant state so as to stop outputting the first power supply signal to the main control module, and the monitoring conversion module can take the last stored next awakening time length threshold as the waiting time length threshold in the next awakening condition so as to set the awakening state from the dormant state to the awakening state when the awakening waiting time length reaches the preset waiting time length threshold in the next dormant state so as to output the first power supply signal for the main control module.
In actual processing, the first power supply duration threshold value may be five minutes, the second power supply duration threshold value may be 5 minutes and 30 seconds, that is, the second power supply duration threshold value is 30 seconds more than the first power supply duration threshold value, and of course, the first power supply duration threshold value and the second power supply duration threshold value may also be set to other times, so as to ensure that the monitoring conversion module can still output the first power supply to the main control module when communication loss occurs between the monitoring conversion module and the main control module.
In a specific implementation, when the monitoring conversion module is in an awake state, in a preset first power supply duration threshold, a first power supply signal can be output to the main control module according to a first voltage signal, so that the main control module can monitor battery fault information according to the first power supply signal, and the method specifically can include: the main control module is used for detecting battery fault information and outputting the battery fault information to the monitoring transmission module of the vehicle, and the monitoring transmission module is used for sending the battery fault information to the monitoring server through a network, wherein the monitoring server is used for receiving the battery fault information and sending alarm information corresponding to the vehicle to the target user terminal according to the battery fault information, and the target user terminal is used for outputting according to the alarm information.
In the actual processing, in the process of outputting the first power supply signal to the main control module, the target control signal of the vehicle may be converted from the non-target control signal to the target control signal by the monitoring conversion module, for example, the vehicle owner may start the vehicle or charge the vehicle when the monitoring conversion module is in the wake-up state. Specifically, in the process that the monitoring conversion module outputs the first power supply signal to the main control module according to the first voltage signal, if the detected target control signal is a starting signal of the vehicle, the monitoring conversion module can be switched from an awake state to a dormant state so as to stop supplying power to the main control module, and at the moment, the storage battery module can supply power to the main control module so that the main control module monitors battery fault information according to the power supply signal output by the storage battery module. Further, to ensure that the monitoring and converting module can be set to the wake-up state from the sleep state when the vehicle enters the target parking state next time, the waiting time threshold in the wake-up condition of the monitoring and converting module can be reset to one hour. If the detected target control signal is a charging signal of the vehicle, the monitoring conversion module still can output a first power supply signal to the main control module according to a preset first power supply duration threshold, if the power supply duration reaches the preset first power supply duration threshold, and no communication abnormality occurs between the monitoring conversion module and the main control module, the main control module can output message information to the monitoring conversion module at this time, the waiting duration threshold in the wake-up condition of the monitoring conversion module is set to be 1 hour through the next wake-up duration threshold contained in the message information, and the monitoring conversion module can be set to be in a dormant state from the wake-up state according to the message information sent by the main control module and stops outputting the first power supply signal to the main control module.
Further, in the process that the monitoring conversion module monitors the battery fault information, if the main control module monitors the extreme faults such as overvoltage, overtemperature, insulation fault and fire disaster early warning, the main control module can send message information to the monitoring conversion module, so that the monitoring conversion module can continuously output a first power supply signal to the main control module, further, the monitoring state of the main control module is ensured not to exit until the fault disappears or the single undervoltage primary fault occurs, at the moment, the main control module can send the message information to the monitoring conversion module, the monitoring conversion module is set to be in a shutdown state according to the message information by wakeup conversion, wakeup is not performed until a charging signal of a vehicle is detected, the monitoring conversion module can enter a dormant state from the shutdown state, and then the monitoring conversion module can be switched to the wakeup state from the dormant state when the vehicle is in a target parking state and the wakeup waiting time does not reach a preset waiting time threshold, and can output a first power supply signal to the main control module according to the first voltage signal.
In a specific implementation, the monitoring conversion module may fail in the working process, at this time, the monitoring conversion module may also send a failure message containing failure information to the master control module through a local area network, bluetooth or other modes, and the master control module may communicate with the whole vehicle based on the received failure message, so as to send the whole vehicle message to the whole vehicle controller (Vehicle Control Unit, VCU), so as to display the failure information in a vehicle instrument panel, prompt the vehicle owner that the monitoring conversion module of the vehicle fails, ensure the safety of the monitoring conversion module, and timely early warn when the monitoring conversion module fails, thereby improving the safety of the whole vehicle.
Specifically, the preset second power supply duration threshold value can be used as the longest duration of one-time power supply output of the monitoring and converting module, and when the power supply duration of the monitoring and converting module reaches the preset second power supply duration threshold value, the state of the monitoring and converting module can be switched from the wake-up state to the sleep state in order to ensure the safety of the battery power supply module of the vehicle.
In actual processing, if the power supply output time length reaches a preset second power supply time length threshold, the monitoring conversion module and the main control module are still in a communication disconnection state, the monitoring conversion module can switch from a wake-up state to a sleep state according to the message information which is stored in the memory and is transmitted by the main control module last time, and the waiting time length threshold in the wake-up condition is set to be the next wake-up time length threshold according to the next wake-up time length threshold contained in the message information, so that the next wake-up can be performed in the sleep state.
In step 260, the first power supply signal is used to trigger the main control module to monitor the battery fault information.
Specifically, the first power supply signal output by the monitoring and converting module may trigger the main control module to detect battery fault information, where the battery fault information of the vehicle battery may include a current battery voltage, a battery standard voltage, a current battery temperature, a battery current, a service time, a working time, a battery capacity, and the like.
As can be seen, the embodiment of the application determines that the wake-up waiting time length of the vehicle meets the preset wake-up condition by determining that the vehicle is in the target parking state, so that the state of the monitoring conversion module of the vehicle is set to be the wake-up state, and the monitoring conversion module can output the first power supply signal to the BMS main control module of the vehicle according to the first voltage signal of the vehicle in the wake-up state, so that the BMS main control module detects the battery fault information and the message information sent by the main control module, and when the communication with the main control module is ensured, the waiting time length threshold value in the self wake-up condition can be modified according to the next wake-up time length threshold value and the control instruction contained in the message information, and the self-wake-up state is controlled to be switched to the sleep state, thereby realizing the real-time monitoring of the battery fault information of the vehicle in the long-term parking process of the vehicle, solving the problem that the monitoring function of the monitoring power distribution system of the vehicle is invalid due to the power failure or abnormal power supply of the BMS system in the prior art, and improving the safety and reliability of the overall design of the battery system.
It should be noted that, for simplicity of description, the method embodiments are shown as a series of acts, but it should be understood by those skilled in the art that the embodiments are not limited by the order of acts described, as some steps may occur in other orders or concurrently in accordance with the embodiments.
As shown in fig. 3, an embodiment of the present application provides a monitoring power distribution system 300 for a vehicle, which includes a wake-up waiting time length determining unit 310 and a state setting unit 320, where the wake-up waiting time length determining unit 310 is configured to determine, when it is monitored that the vehicle is in a target parking state, a wake-up waiting time length corresponding to the vehicle; a state setting unit 320, configured to set a state of the monitoring conversion module of the vehicle to a wake-up state when the wake-up waiting duration meets a preset wake-up condition; the monitoring conversion module is used for outputting a first power supply signal to a main control module of the vehicle according to a first voltage signal of the vehicle under a wake-up state; the first power supply signal is used for triggering the main control module to monitor battery fault information.
Optionally, the monitoring power distribution system of the vehicle further includes:
a control signal acquisition unit configured to acquire a control signal of the vehicle;
a target state duration determining unit, configured to determine a target state duration corresponding to the vehicle when the control signal of the vehicle is a non-target control signal;
and the target parking state determining unit is used for determining that the vehicle enters a target parking state when the target state duration accords with a preset target state condition.
Optionally, before setting the state of the monitoring conversion module of the vehicle to the wake state, the method further includes:
the wake-up waiting time length judging unit is used for judging whether the wake-up waiting time length reaches a preset waiting time length threshold value or not; if the awakening waiting time length reaches the waiting time length threshold value, determining that the awakening waiting time length meets a preset awakening condition;
and the first state setting unit of the monitoring conversion module is used for setting the state of the monitoring conversion module of the vehicle to be a dormant state when the awakening waiting time does not reach the waiting time threshold.
Optionally, after setting the state of the monitoring conversion module of the vehicle to the wake state, the method further includes:
the power supply output duration determining unit is used for determining the power supply output duration corresponding to the monitoring conversion module based on the wake-up state;
and the second state setting unit of the monitoring conversion module is used for switching the state of the monitoring conversion module from the awakening state to the dormant state when the power supply output time length reaches a preset first power supply time length threshold value so as to trigger the monitoring conversion module to stop outputting the first power supply signal to the main control module.
Optionally, before the state of the monitoring conversion module is switched from the awake state to the sleep state, the method further includes:
the target message information determining unit is used for monitoring whether the monitoring conversion module receives target message information or not based on the awakening state;
the power supply output time length judging unit is used for judging whether the power supply output time length reaches a preset second power supply time length threshold value or not when the monitoring conversion module does not receive the target message information, wherein the second power supply time length threshold value is larger than the first power supply time length threshold value;
and the monitoring conversion module state switching unit is used for executing the step of switching the state of the monitoring conversion module from the awakening state to the dormant state when the power supply output time length reaches a preset second power supply time length threshold value.
Optionally, the target message information is message information sent by the main control module;
the main control module is used for monitoring battery fault information and outputting the battery fault information to the monitoring transmission module of the vehicle so as to trigger the monitoring transmission module to send the battery fault information to the monitoring server through a network.
Optionally, the monitoring server is configured to receive the battery fault information, and send alarm information corresponding to the vehicle to a target user terminal according to the battery fault information;
the target user terminal is used for outputting according to the alarm information, for example, outputting alarm information to a user according to the alarm information.
The present application also provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method of monitoring power distribution of a vehicle as provided by any of the method embodiments described above.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is merely a specific embodiment of the application to enable one skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A method of monitoring power distribution for a vehicle, comprising:
when the vehicle is monitored to be in a target parking state, determining the corresponding wake-up waiting time length of the vehicle;
if the wake-up waiting time accords with a preset wake-up condition, setting the state of the monitoring conversion module of the vehicle to be a wake-up state;
the monitoring conversion module is used for outputting a first power supply signal to a main control module of the vehicle according to a first voltage signal of the vehicle under a wake-up state;
the first power supply signal is used for triggering the main control module to monitor battery fault information.
2. The method as recited in claim 1, further comprising:
acquiring a control signal of the vehicle;
if the control signal of the vehicle is a non-target control signal, determining a target state duration corresponding to the vehicle;
and if the target state duration accords with a preset target state condition, determining that the vehicle enters a target parking state.
3. The method of claim 1, further comprising, prior to setting the state of the monitoring transition module of the vehicle to an awake state:
judging whether the awakening waiting time length reaches a preset waiting time length threshold value or not;
if the awakening waiting time length reaches the waiting time length threshold value, determining that the awakening waiting time length meets a preset awakening condition;
and if the awakening waiting time does not reach the waiting time threshold, setting the state of the monitoring conversion module of the vehicle to be a dormant state.
4. The method of claim 1, further comprising, after setting the state of the monitoring transition module of the vehicle to the awake state:
determining power supply output duration corresponding to the monitoring conversion module based on the wake-up state;
and if the power supply output time length reaches a preset first power supply time length threshold value, switching the state of the monitoring conversion module from the awakening state to the dormant state so as to trigger the monitoring conversion module to stop outputting the first power supply signal to the main control module.
5. The method of claim 4, further comprising, prior to switching the state of the monitoring transition module from the awake state to the sleep state:
based on the awakening state, monitoring whether the monitoring conversion module receives target message information or not;
if the monitoring conversion module does not receive the target message information, judging whether the power supply output time length reaches a preset second power supply time length threshold value, wherein the second power supply time length threshold value is larger than the first power supply time length threshold value;
and if the power supply output time length reaches a preset second power supply time length threshold value, executing the step of switching the state of the monitoring conversion module from the awakening state to the dormant state.
6. The method of claim 5, wherein the target message information is message information sent by the main control module;
the main control module is used for monitoring battery fault information and outputting the battery fault information to the monitoring transmission module of the vehicle;
and the monitoring transmission module is used for sending the battery fault information to a monitoring server through a network.
7. The method of claim 6, wherein the monitoring server is configured to receive the battery failure information and send alarm information corresponding to the vehicle to a target user terminal according to the battery failure information;
and the target user terminal is used for outputting according to the alarm information.
8. A monitoring power distribution system for a vehicle, comprising: a wake-up waiting time length determining unit and a state setting unit;
the wake-up waiting time length determining unit is used for determining the wake-up waiting time length corresponding to the vehicle when the vehicle is in the target parking state;
the state setting unit is used for setting the state of the monitoring conversion module of the vehicle to be a wake-up state when the wake-up waiting time accords with a preset wake-up condition;
the monitoring conversion module is used for outputting a first power supply signal to a main control module of the vehicle according to a first voltage signal of the vehicle under a wake-up state;
the first power supply signal is used for triggering the main control module to monitor battery fault information.
9. A vehicle, characterized by comprising: the monitoring power distribution system of claim 8.
10. A computer readable storage medium having stored thereon a computer program, which when executed by a processor, implements the steps of a method of monitoring a power distribution of a vehicle according to any of claims 1-7.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117261667A (en) * | 2023-11-22 | 2023-12-22 | 广汽埃安新能源汽车股份有限公司 | Vehicle charging awakening control method, storage medium and electronic equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117261667A (en) * | 2023-11-22 | 2023-12-22 | 广汽埃安新能源汽车股份有限公司 | Vehicle charging awakening control method, storage medium and electronic equipment |
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