CN115932587A - Sentinel mode battery state monitoring method and device based on power domain - Google Patents

Sentinel mode battery state monitoring method and device based on power domain Download PDF

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CN115932587A
CN115932587A CN202211489838.2A CN202211489838A CN115932587A CN 115932587 A CN115932587 A CN 115932587A CN 202211489838 A CN202211489838 A CN 202211489838A CN 115932587 A CN115932587 A CN 115932587A
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battery
preset
hvm
wake
fault
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李志方
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Hozon New Energy Automobile Co Ltd
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Hozon New Energy Automobile Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

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Abstract

The invention discloses a sentinel mode battery state monitoring method and device based on a power domain, relates to the technical field of battery monitoring, and mainly aims to realize monitoring of a battery state through sentinel modes under different working conditions when a vehicle-mounted controller is in a dormant state, and improve monitoring accuracy. The main technical scheme of the invention is as follows: when the vehicle-mounted controller is in a dormant state, simultaneously operating a pressure sensor to monitor a sentinel mode, an AFE reverse awakening sentinel mode and a timing awakening sentinel mode to monitor the battery state based on the collected battery target safety data respectively; the battery target safety data at least comprise one or more of battery monomer voltage, battery module temperature, battery pack insulation resistance, battery pack pressure and battery pack total pressure. The invention is used for monitoring the battery state.

Description

Power domain-based sentinel mode battery state monitoring method and device
Technical Field
The invention relates to the technical field of battery monitoring, in particular to a sentinel mode battery state monitoring method and device based on a power domain.
Background
With the development of new energy electric vehicles, the safety of electric vehicles becomes more and more important for customer user experience. Because the safety performance of the electric automobile battery directly influences the safety performance of the electric automobile, the electric automobile needs to be capable of monitoring whether the battery fails or not in time so as to prompt and maintain the battery, but under the non-driving or non-charging condition, the vehicle-mounted controller of the electric automobile is in a dormant state, and cannot monitor whether the battery fails or not in time.
Currently, monitoring of the battery state is performed using a single active control unit power domain controller or a single passive control unit battery management controller based monitoring method in non-driving or non-charging situations.
However, the above monitoring method has high complexity, resulting in low accuracy in monitoring the state of the battery.
Disclosure of Invention
In view of the above problems, the invention provides a sentinel mode battery state monitoring method and device based on a power domain, and mainly aims to monitor the battery state through sentinel modes under different working conditions when a vehicle-mounted controller is in a dormant state, so as to improve monitoring accuracy.
In order to solve the technical problems, the invention provides the following scheme:
in a first aspect, the present invention provides a sentinel mode battery status monitoring method based on a power domain, the method comprising:
when the vehicle-mounted controller is in a dormant state, simultaneously operating the pressure sensor to monitor the sentinel mode, the AFE reverse awakening sentinel mode and the timing awakening sentinel mode to monitor the battery state based on the collected battery target safety data respectively; the battery target safety data at least comprise one or more of battery monomer voltage, battery module temperature, battery pack insulation resistance, battery pack pressure and battery pack total pressure.
Preferably, the pressure sensor monitors sentinel patterns, comprising:
monitoring the pressure of the battery pack in real time through the BPS;
when the pressure of the battery pack is greater than a preset safe pressure threshold value, awakening the HVM by using a preset awakening rule;
the HVM judges whether the battery thermal runaway fault alarm is triggered or not according to the CAN message sent by the BPS and a battery thermal runaway fault alarm strategy, wherein the CAN message sent by the BPS at least comprises battery pack pressure, pressure increase slope, battery monomer voltage and battery module temperature;
when the battery thermal runaway fault alarm is triggered, the HVM outputs a preset signal to wake up the PDCS, and alarms based on fault information corresponding to the battery thermal runaway fault alarm by using the PDCS, wherein the fault information corresponding to the battery thermal runaway fault alarm is sent to the PDCS through an intranet CAN message;
when the battery thermal runaway fault alarm is not triggered, the HVM stores abnormal data of the battery pack pressure and enters a sleep mode.
Preferably, the AFE reverse wake sentinel mode includes:
the AFE acquires the voltage of a single battery and the temperature of a battery module through a periodic awakening process;
when the voltage of the single battery is smaller than a preset threshold value and/or the temperature of the battery module is not within a preset temperature range, awakening the HVM by using a preset awakening rule;
the HVM judges whether an AFE reverse wake-up fault alarm is triggered or not by using a preset diagnosis rule based on the cell voltage acquired by the AFE and the temperature of the battery module, wherein the cell voltage acquired by the TPL and the temperature of the battery module are acquired by the TPL, and the AFE reverse wake-up fault at least comprises an abnormal fault of the cell voltage and an abnormal fault of the temperature of the battery module;
when the AFE reverse wake-up fault alarm is triggered, the HVM outputs a preset signal to wake up the PDCS, and alarms based on fault information corresponding to the AFE reverse wake-up fault alarm by using the PDCS, wherein the fault information corresponding to the AFE reverse wake-up fault alarm is sent to the PDCS through an intranet CAN message;
when the AFE reverse wake-up fault alarm is not triggered, the HVM enters a sleep mode.
Preferably, the timed wake-up sentinel mode comprises:
awakening the PDCS by using an RTC according to a preset time period, and further awakening the HVM by the PDCS;
the HVM acquires target safety data, wherein the target safety data at least comprises battery pack battery monomer voltage, battery module temperature, battery pack insulation resistance, battery pack pressure and battery pack total pressure;
the HVM judges whether a preset battery potential safety hazard fault occurs or not based on the target safety data, wherein the preset battery potential safety hazard fault at least comprises a battery thermal runaway fault, an abnormal fault of the single battery voltage and an abnormal fault of the battery module temperature;
when the battery has a fault of a preset battery potential safety hazard, the PDCS is used for alarming;
and when the battery has no fault of the preset potential safety hazard of the battery, the HVM enters a sleep mode.
Preferably, when the pressure of the battery pack is greater than a preset safe pressure threshold, waking up the HVM by using a preset wake-up rule, including:
when the pressure of the battery pack is larger than the preset safety pressure threshold value, the BPS wakes up the PMIC by sending a preset signal to the PMIC;
and the PMIC wakes up the HVM by supplying power to the MCU.
Preferably, when the voltage of the battery cell is smaller than a preset threshold and/or the temperature of the battery module is not within a preset temperature range, waking up the HVM by using a preset wake-up rule, including:
when the voltage of the battery monomer is smaller than a preset threshold value and/or the temperature of the battery module is not within a preset temperature range, the AFE activates the TPL by sending a wake-up pulse signal to the TPL, wherein the wake-up pulse signal is generated on a TPL bus by the AFE;
the activated TPL wakes up the PMIC by sending a preset signal to the PMIC;
and the PMIC wakes up the HVM by supplying power to the MCU.
Preferably, the waking up the PDCS by using the RTC according to a preset time period, and the PDCS further wakes up the HVM, includes:
according to a preset time period, the RTC sends a preset awakening signal to the PMIC to awaken the PMIC;
the PMIC wakes up the PDCS for the MCU through supplying power;
and the PDCS outputs a preset signal to wake up the HVM.
In a second aspect, the present invention provides a sentinel-mode battery status monitoring device based on a power domain, the device comprising:
the monitoring unit is used for simultaneously operating the pressure sensor monitoring sentry mode, the AFE reverse awakening sentry mode and the timing awakening sentry mode to monitor the battery state based on the collected battery target safety data when the vehicle-mounted controller is in the dormant state; the battery target safety data at least comprise one or more of battery monomer voltage, battery module temperature, battery pack insulation resistance, battery pack pressure and battery pack total pressure.
Preferably, the pressure sensor monitors a sentinel pattern, the monitoring unit comprising:
the monitoring module is used for monitoring the pressure of the battery pack in real time through the BPS;
the first awakening module is used for awakening the HVM by utilizing a preset awakening rule when the pressure of the battery pack is greater than a preset safety pressure threshold value;
the judgment module is used for judging whether the battery thermal runaway fault alarm is triggered or not by the HVM according to the CAN message sent by the BPS and the battery thermal runaway fault alarm strategy, wherein the CAN message sent by the BPS at least comprises battery pack pressure, pressure increase slope, battery monomer voltage and battery module temperature;
the warning module is used for outputting a preset signal to wake up the PDCS by the HVM when the battery thermal runaway fault warning is triggered, and warning based on fault information corresponding to the battery thermal runaway fault warning by using the PDCS, wherein the fault information corresponding to the battery thermal runaway fault warning is sent to the PDCS through an intranet CAN message;
and the storage module is used for storing the abnormal data of the pressure of the battery pack by the HVM and entering a sleep mode when the battery thermal runaway fault alarm is not triggered.
Preferably, the AFE wakes up the sentinel mode reversely, and the monitoring unit is configured to include:
the acquisition module is used for acquiring the single battery voltage and the temperature of the battery module by the AFE through a periodic awakening process;
the second awakening module is used for awakening the HVM by utilizing a preset awakening rule when the voltage of the battery monomer is smaller than a preset threshold value and/or the temperature of the battery module is not within a preset temperature range;
the second judgment module is used for judging whether an AFE reverse wake-up fault alarm is triggered or not by the HVM by using a preset diagnosis rule based on the cell voltage acquired by the AFE and the temperature of the battery module, wherein the cell voltage acquired by the HVM is acquired by the TPL, and the AFE reverse wake-up fault at least comprises an abnormal fault of the cell voltage and an abnormal fault of the temperature of the battery module;
a second alarm module, configured to, when the AFE reverse wake-up fault alarm is triggered, output a preset signal by the HVM to wake up the PDCS, and alarm based on fault information corresponding to the AFE reverse wake-up fault alarm by using the PDCS, where the fault information corresponding to the AFE reverse wake-up fault alarm is sent to the PDCS through an intranet CAN message;
the second alarm module is further configured to, when the AFE wake-up back fault alarm is not triggered, enter a sleep mode by the HVM.
Preferably, the timed wake-up sentinel mode, the monitoring unit, comprises:
a third wake-up module, configured to wake up the PDCS using the RTC according to a preset time period, and the PDCS further wakes up the HVM;
the acquisition module is used for acquiring target safety data by the HVM, wherein the target safety data at least comprises battery pack single voltage, battery module temperature, battery pack insulation resistance, battery pack pressure and battery pack total pressure;
the third judgment module is used for judging whether a preset battery potential safety hazard fault occurs or not by the HVM based on the target safety data, wherein the preset battery potential safety hazard fault at least comprises a battery thermal runaway fault, an abnormal fault of the single battery voltage and an abnormal fault of the temperature of the battery module;
the third alarm module is used for alarming by utilizing the PDCS when the battery has a fault of a preset battery potential safety hazard;
and the third alarm module is further used for entering a sleep mode by the HVM when the battery has no fault of the preset potential safety hazard of the battery.
Preferably, the first wake-up module includes:
the first awakening submodule is used for awakening the PMIC by sending a preset signal to the PMIC by the BPS when the pressure of the battery pack is greater than the preset safety pressure threshold value;
and the second awakening sub-module is used for awakening the HVM by the PMIC through supplying power to the MCU.
Preferably, the second wake-up module includes:
the activation sub-module is used for activating the TPL by sending a wake-up pulse signal to the TPL when the single battery voltage is smaller than a preset threshold value and/or the battery module temperature is not within a preset temperature range, wherein the wake-up pulse signal is generated on the TPL by the AFE;
a first wake-up sub-module, configured to wake up the PMIC by sending a preset signal to the PMIC by the activated TPL;
and the second awakening sub-module is used for awakening the HVM for the MCU through power supply of the PMIC.
Preferably, the third wake-up module includes:
the first awakening submodule is used for awakening the PMIC by the RTC through sending a preset awakening signal to the PMIC according to a preset time period;
the PMIC is used for supplying power to the MCU to wake up the PDCS;
and the third awakening submodule is used for awakening the HVM by the PDCS outputting a preset signal.
In order to achieve the above object, according to a third aspect of the present invention, there is provided a storage medium comprising a stored program, wherein when the program is run, a device on which the storage medium is located is controlled to execute the power domain-based sentinel mode battery status monitoring method according to the first aspect.
In order to achieve the above object, according to a fourth aspect of the present invention, there is provided an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing all or part of the steps of the device for monitoring the state of a sentinel-mode battery based on a power domain as described in the second aspect when executing the program.
By means of the technical scheme, the sentinel mode battery state monitoring method and device based on the power domain, provided by the invention, have the problem that the battery state monitoring accuracy is low due to the fact that the battery state monitoring method based on the single active control unit power domain controller or the single passive control unit battery management controller is high in complexity under the condition of non-driving or non-charging. Therefore, when the vehicle-mounted controller is in a dormant state, the pressure sensor is operated to monitor the sentinel mode, the AFE reverse wake-up sentinel mode and the timing wake-up sentinel mode simultaneously, and the battery state is monitored respectively based on the collected battery target safety data; the preset sentinel modes at least comprise a pressure sensor monitoring sentinel mode, an AFE reverse awakening sentinel mode and a timing awakening sentinel mode; the battery target safety data at least comprises one or more of battery monomer voltage, battery module temperature, battery pack insulation resistance, battery pack pressure and battery pack total pressure. The invention can be applied to a cross-domain Electronic Electrical Architecture (EEA) platform on the electric automobile; and the cooperative operation of the power domain controller of the active control unit and the battery management controller of the passive control unit is utilized to realize the cooperative monitoring of the battery state of the three battery sentinels under the non-driving or non-charging condition of the electric automobile.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a flow chart of a sentinel-mode battery status monitoring method based on a power domain according to an embodiment of the present invention;
FIG. 2 is a flow chart of another sentinel mode battery status monitoring method based on power domain according to an embodiment of the present invention;
FIG. 3 is a flow chart of another sentinel mode battery status monitoring method based on power domain according to an embodiment of the present invention;
FIG. 4 is a flow chart of another sentinel mode battery status monitoring method based on power domain according to an embodiment of the present invention;
FIG. 5 is a block diagram illustrating components of a sentinel-mode battery status monitoring apparatus based on power domains according to an embodiment of the present invention;
FIG. 6 is a block diagram illustrating another sentinel-mode battery status monitoring device based on power domains according to an embodiment of the present invention;
fig. 7 shows a schematic structural diagram of a sentinel-mode battery status monitoring device based on a power domain according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Interpretation of terms:
electronic and electrical architecture: english is called as a whole: electrical/Electronic Architecture, english abbreviation: EEA.
A battery management system: english is called as a whole: battery Management System, english abbreviation: BMS.
Mainboard high-voltage management unit: english is called as a whole: high Voltage Management, english is abbreviated as: HVM.
A slave cell monitoring unit: english is called as a whole: cell Monitoring Unit, english abbreviation: the CMU.
A clock chip: english is called as a whole: real _ Time Clock, english abbreviation: the RTC.
The function of the rectifying/feedback unit: chinese characters are fully called: english is called as a whole: active Front End, english abbreviation: and (7) an AFE.
An atmospheric pressure sensor: english is called as a whole: barometric Pressure Sensor, english abbreviation: and (4) BPS.
A power domain controller: english is called as a whole: the Powertrain Domain Controller System, english abbreviation: and (4) PDCS.
The power management chip: english is called as a whole: power Management IC, english abbreviation: PMIC.
A single chip microcomputer: english is called as a whole: microcontroller Unit, english abbreviation: and (6) an MCU.
Daisy chain communication chip: english is called as a whole: transmission Line Pulse, english abbreviation: TLP.
Unified diagnostic service: english is called as a whole: united Diagnostic Services, english abbreviation: and (4) UDS.
For the situation that the complexity of the method for monitoring the battery state based on the single active control unit power domain controller or the single passive control unit battery management controller is high under the condition of non-driving or non-charging, the accuracy of monitoring the battery state is low. Aiming at the problem, the inventor thinks that the battery state is monitored in a battery sentry mode through the cooperative operation of the power domain controller of the active control unit and the battery management controller of the passive control unit, and the monitoring accuracy is improved.
Therefore, the embodiment of the invention provides a sentinel mode battery state monitoring method based on a power domain, which is used for monitoring the battery state through sentinel modes under different working conditions when a vehicle-mounted controller is in a dormant state so as to give an alarm in time, and the specific implementation steps are shown in fig. 1 and comprise the following steps:
101. when the vehicle-mounted controller is in a dormant state, the pressure sensor is operated to monitor the sentinel mode, the AFE reverse awakening sentinel mode and the timing awakening sentinel mode simultaneously, and the battery state is monitored based on the collected battery target safety data respectively.
The battery target safety data at least comprise one or more of battery monomer voltage, battery module temperature, battery pack insulation resistance, battery pack pressure and battery pack total pressure. As shown in fig. 7, the system architecture diagram of the present invention is a Battery Management System (BMS) designed based on an inter-domain electrical architecture (EEA) platform, and is collectively referred to as HVM subsystem components in the present invention. The HVM subsystem components and parts mainly consist of 2 parts, namely a motherboard high voltage management unit (HVM) and a slave Cell Monitoring Unit (CMU). The matching mode of the main board HVM and the slave board CMU is 1 master and 4 slaves; the data acquisition of battery target safety data such as battery pack battery monomer voltage, battery module temperature, battery pack insulation resistance, battery pack pressure, battery pack total pressure is realized jointly.
Under the condition that a driver does not drive or charge, the vehicle-mounted controller of the electric automobile is in a dormant state. At the moment, the HVM subsystem components monitor the relevant parameters of the battery pack and are realized through the sentry mode function. The sentry mode function is mainly divided into 3 partial function modules, namely a pressure sensor (BPS) monitoring sentry mode, an AFE reverse awakening sentry mode and a timing awakening (RTC) sentry mode.
The pressure sensor (BPS) monitoring sentinel mode, the AFE reverse wake-up sentinel mode, and the timed wake-up (RTC) sentinel mode may be operated simultaneously, or any two or one of them may be selected to operate in case of service requirement.
The pressure sensor (BPS) monitoring sentinel mode is a monitoring scheme for further determining whether the battery is abnormal or not by waking up an HVM when the BPS detects that the pressure of the battery pack is abnormal and reminding the battery through a PDCS; the AFE reverse wake-up sentinel mode is a monitoring scheme for detecting the voltage of a single battery and the temperature of a battery module based on the periodic wake-up process of the AFE, waking up an HVM to further determine whether the battery is abnormal when the voltage of the single battery and/or the temperature of the battery module are abnormal, and reminding is performed through a PDCS; the timed wake-up (RTC) sentinel mode is a monitoring scheme that a PDCS is awakened through the self-wake-up function of the RTC, the HVM is awakened through the PDCS to carry out all monitoring on relevant parameters of a battery pack, and then reminding is carried out through the PDCS. The three sentinel modes HVM and PDCS are transmitted through an intranet CAN, and the transmission speed is high.
The pressure sensor (BPS) monitoring sentinel mode is that the HVM is awakened only when the pressure of the battery pack is abnormal, so that the power consumption of the HVM can be reduced; the AFE reverse wake-up sentinel mode is that the AFE periodically wakes up and monitors the voltage of a single battery and the temperature of a battery module, and wakes up the HVM only when the voltage of the single battery and/or the temperature of the battery module are abnormal, so that the power consumption of the HVM can be reduced; the timed wake-up (RTC) sentinel mode is used for completely monitoring the battery state, the comprehensiveness of monitoring the battery state can be ensured, and the three sentinel models are mutually redundant while cooperating together. The sentry mode monitoring under different working conditions can be realized, and effective alarm reminding or personnel safety protection schemes can be realized.
Based on the implementation manner of the embodiment of fig. 1, it can be seen that the invention provides a sentinel mode battery state monitoring method based on a power domain, and the invention monitors the battery state based on the collected battery target safety data respectively by simultaneously operating a pressure sensor to monitor a sentinel mode, an AFE reverse wake-up sentinel mode and a timing wake-up sentinel mode when an on-board controller is in a dormant state; the preset sentinel modes at least comprise a pressure sensor monitoring sentinel mode, an AFE reverse awakening sentinel mode and a timing awakening sentinel mode; the battery target safety data at least comprises one or more of battery monomer voltage, battery module temperature, battery pack insulation resistance, battery pack pressure and battery pack total pressure. The invention can be applied to a cross-domain Electronic Electrical Architecture (EEA) platform on the electric automobile; and the cooperative operation of the active control unit power domain controller and the passive control unit battery management controller realizes the cooperation of three battery sentry modes to jointly monitor the battery state under the condition that the electric automobile is not driven or is not charged.
Further, as a refinement and an extension of the sentinel mode monitored by the pressure sensor in the embodiment shown in fig. 1, the embodiment of the present invention further provides another sentinel mode battery state monitoring method based on a power domain, as shown in fig. 2, which includes the following specific steps:
201. the pack pressure is monitored in real time by the BPS.
Under the condition that a driver does not drive or charge, the vehicle-mounted controller of the electric vehicle is in a dormant state. At the moment, the HVM subsystem components monitor the relevant parameters of the battery pack and are realized through the sentry mode function. The sentinel mode of the present embodiment is the pressure sensor monitoring sentinel mode.
As shown in fig. 7, the BPS joins the HVM, and monitors the pressure of the battery pack in real time, thereby acquiring the data of the pressure of the battery pack.
202. And when the pressure of the battery pack is greater than a preset safe pressure threshold value, awakening the HVM by using a preset awakening rule.
When the battery pack pressure is greater than the preset safe pressure threshold value, the BPS wakes up the PMIC by sending a preset signal to the PMIC; the PMIC wakes up the HVM by supplying power to the MCU; the preset safe pressure threshold is a safe pressure threshold set by a software monitoring algorithm; the preset signal may be a 12V hard-wired signal. According to step 201, the BPS monitors the pressure of the battery pack in real time, and when the pressure abnormality of the battery pack is greater than a safety pressure threshold set by a software monitoring algorithm, the BPS outputs a 12V hard-line signal to a power management chip (PMIC), and then the PMIC outputs 3.3V power to a single chip Microcomputer (MCU) to wake up the HVM.
203. And the HVM judges whether the battery thermal runaway fault alarm is triggered or not according to the CAN message sent by the BPS and the battery thermal runaway fault alarm strategy.
The CAN message sent by the BPS at least comprises the pressure of a battery pack, the pressure increase slope, the single battery voltage and the temperature of the battery module.
After the HVM is awakened, determining whether battery thermal runaway fault alarm is triggered or not according to CAN message sent by the BPS and battery thermal runaway fault alarm strategy analysis of the HVM software; it should be noted that the information obtained by the HVM is "when monitoring that the pressure is abnormal, and simultaneously monitoring one or more of sub-faults such as an excessively high pressure increase slope, a battery cell voltage outlier, a battery module temperature outlier, and the like", it may be determined that a battery thermal runaway fault alarm is triggered; otherwise, determining that the battery thermal runaway fault alarm is not triggered.
204. When the battery thermal runaway fault alarm is triggered, the HVM outputs a preset signal to wake up the PDCS, and the PDCS is used for alarming based on fault information corresponding to the battery thermal runaway fault alarm.
The fault information corresponding to the battery thermal runaway fault alarm is sent to the PDCS through an intranet CAN message;
according to the step 203, if the HVM determines that the battery thermal runaway fault alarm is triggered, the HVM outputs a 12V hard line signal (HVM-Wakeup-PDCS) to wake up the PDCS, and simultaneously sends fault information corresponding to the battery thermal runaway fault alarm to the PDCS on an intranet CAN (Internal-CAN) message, and the PDCS immediately alarms to remind a driver and passengers of the potential safety hazard of the battery thermal runaway, so that personnel CAN safely escape. The alarm mode may be an audio alarm and/or a text alarm, and this embodiment is not particularly limited.
205. When the battery thermal runaway fault alarm is not triggered, the HVM stores abnormal data of the pressure of the battery pack and enters a sleep mode.
According to step 203, the HVM determines that a battery thermal runaway fault alarm is not triggered, and only that the battery pack pressure is abnormal, the HVM records abnormal fault snapshot information (DTC) of the battery pack pressure and then powers off to enter a sleep mode.
Further, as a refinement and an extension of the AFE reverse wake-up sentinel mode in the embodiment shown in fig. 1, the embodiment of the present invention further provides another sentinel mode battery state monitoring method based on a power domain, as shown in fig. 3, which specifically includes the following steps:
301. and the AFE acquires the voltage of the battery cell and the temperature of the battery module through a periodic awakening process.
When a driver does not drive or charge, the main board high voltage management unit HVM is in a sleep mode, and the front end acquisition chip (AFE, such as MC33775A of NXP) of the slave board cell monitoring unit CMU is directly connected to the battery, but is in a low power consumption sleep mode. As the daisy chain communication chip (TPL) has a bus wake-up function, the AFE acquires the voltage of the battery cell and the temperature of the battery module through a periodic wake-up process in the sleep mode. 302. And when the voltage of the single battery is smaller than a preset threshold value and/or the temperature of the battery module is not within a preset temperature range, awakening the HVM by using a preset awakening rule.
When the voltage of the battery monomer is smaller than a preset threshold value and/or the temperature of the battery module is not in a preset temperature range (namely whether the voltage of the battery monomer is under-voltage or the temperature of the battery module is too high or too low is checked), the AFE activates the TPL by sending a wake-up pulse signal to the TPL, wherein the wake-up pulse signal is generated on a TPL bus by the AFE; the activated TPL wakes up the PMIC by sending a preset signal to the PMIC; and the PMIC wakes up the HVM by supplying power to the MCU. Wherein, the preset signal may be a high level of 3.3V; the voltage of the power supply may be 3.3V, and this embodiment is not particularly limited. For example: the normal value of the voltage of the NCM battery cell is 3.73V, the overvoltage value is 4.3V, and the undervoltage value is 2.2V; the temperature of the battery module is 35 ℃ normally, 60 ℃ over-temperature and-30 ℃ under-temperature; the preset threshold may be set to 2.2V, and the preset temperature range may be set to 35-55 ℃.
303. And the HVM judges whether the AFE reverse wake-up fault alarm is triggered or not by using a preset diagnosis rule based on the battery cell voltage acquired by the AFE acquired through the TPL and the battery module temperature.
The AFE reverse wake-up fault at least comprises an abnormal fault of the cell voltage and an abnormal fault of the temperature of the battery module;
after the HVM is awakened, acquiring the cell voltage and the battery module temperature acquired by the AFE of the CMU through the TPL, and diagnosing the HVM by the UDS (universal Diagnostic Services in English) according to the enabling conditions, the triggering threshold and the debouncing time (anti-shake time) of the cell voltage and the battery module temperature faults set by software so as to determine whether the AFE reverse awakening fault alarm is triggered.
304. When the AFE reverse wake-up fault alarm is triggered, the HVM outputs a preset signal to wake up the PDCS, and the PDCS is used for alarming based on fault information corresponding to the AFE reverse wake-up fault alarm.
The fault information corresponding to the AFE reverse wake-up fault alarm is sent to the PDCS through an intranet CAN message;
if the HVM confirms that the AFE reverse wake-up fault alarm is triggered, the HVM outputs a 12V hard wire signal (HVM-Wakeup-PDCS) to wake up the PDCS, meanwhile, fault information corresponding to the AFE reverse wake-up fault alarm is sent to the PDCS on an Internal network CAN (Internal-CAN) message, and then the PDCS immediately alarms to remind a driver and passengers of potential safety hazards of battery thermal runaway, so that personnel CAN escape safely. 305. When the AFE reverse wake up fault alarm is not triggered, then the HVM enters sleep mode.
And if the HVM confirms that the AFE reverse wake-up alarm fault is not triggered, continuing to enter a sleep mode to wait for the next AFE periodic wake-up.
Further, as a refinement and an extension of the timed wake-up sentinel mode in the embodiment shown in fig. 1, an embodiment of the present invention further provides another sentinel mode battery state monitoring method based on a power domain, as shown in fig. 4, which specifically includes the following steps:
401. and awakening the PDCS by using the RTC according to a preset time period, and further awakening the HVM by using the PDCS.
According to a preset time period, the RTC sends a preset awakening signal to the PMIC to awaken the PMIC; the PMIC wakes up the PDCS for the MCU through supplying power; and the PDCS outputs a preset signal to wake up the HVM.
When a driver does not drive or charge, the high voltage management unit HVM of the main board is in a sleep mode, the monitoring unit CMU of the slave board cell is in a sleep mode, and the power domain controller PDCS is also in the sleep mode.
The real-time clock wake-up (RTC) circuit of the PDCS has a self-wake-up function, and the RTC can be self-woken up once every 30min to realize the intelligent power supply function of the 12V lead-acid small battery of the whole vehicle.
The RTC outputs a 3.3V high-level wake-up signal to a power management chip (PMIC) when intelligent power supply self-wake-up is realized, and then the PMIC outputs 3.3V power supply to a single chip Microcomputer (MCU) to wake up the PDCS; and when the PDCS is awakened by the RTC to realize intelligent power compensation, a 12V hard wire signal (PDCS-Wakeup-HVM) is output to awaken the HVM.
402. The HVM acquires target security data.
The target safety data at least comprise battery pack battery monomer voltage, battery module temperature, battery pack insulation resistance, battery pack pressure and battery pack total pressure;
after the HVM is awakened by the PDCS, target safety data such as battery monomer voltage of a battery pack, battery module temperature, battery pack insulation resistance, battery pack pressure, total battery pack pressure and the like can be systematically and rapidly checked so as to confirm whether a fault of potential safety hazard of the battery can occur.
403. And the HVM judges whether the preset potential safety hazard faults of the battery appear or not based on the target safety data.
And the preset battery potential safety hazard faults at least comprise the battery thermal runaway fault, the abnormal fault of the battery monomer voltage and the abnormal fault of the battery module temperature. See steps 203 and 303 for details.
404. And when the battery has a fault of the preset potential safety hazard of the battery, the PDCS is used for alarming.
According to the step 403, when the battery has a fault of a preset potential safety hazard, the HV sends the fault information to the PDCS through the intranet CAN, and then the PDCS immediately alarms to remind a driver and passengers of the potential safety hazard of thermal runaway of the battery, so that the personnel CAN escape safely.
405. And when the battery has no fault of the preset potential safety hazard of the battery, the HVM enters a sleep mode.
And entering a sleep mode if the HVM is awakened by the PDCS and no corresponding preset battery potential safety hazard fault is detected according to the step 403.
Based on the implementation manners of fig. 2-4, it CAN be seen that the invention provides a sentinel mode battery state monitoring method based on a power domain, the invention is a power assembly sentinel mode design based on a cross-domain electronic and electrical architecture, the HVM CAN reduce the power consumption of a vehicle controller for a 12V lead-acid storage battery of a whole vehicle under a low-power-consumption sleep condition, and meanwhile, the HVM CAN realize battery pack big data monitoring, intelligent calibration, cloud computing analysis and the like through an intranet CAN communication route design of a PDCS, thereby being beneficial to background timely monitoring and predicting potential safety hazards of the battery, and providing the most effective warning reminding or personnel safety protection scheme through algorithm analysis. And BPS, AFE and TPL in HVM, RTC in PDCS work independently and mutual redundancy, can realize the guard mode control of different working conditions, have reduced the complexity that HVM and PDCS are designed separately guard mode, the reliability that is favorable to battery pack state control.
Further, as an implementation of the method shown in fig. 1, an embodiment of the present invention further provides a sentinel mode battery status monitoring apparatus based on a power domain, which is used for implementing the method shown in fig. 1. The embodiment of the apparatus corresponds to the embodiment of the method, and for convenience of reading, details in the embodiment of the apparatus are not repeated one by one, but it should be clear that the apparatus in the embodiment can correspondingly implement all the contents in the embodiment of the method. As shown in fig. 5, the apparatus includes:
the monitoring unit 51 is used for simultaneously operating a pressure sensor monitoring sentinel mode, an AFE reverse awakening sentinel mode and a timing awakening sentinel mode to monitor the battery state based on the collected battery target safety data when the vehicle-mounted controller is in a dormant state; the preset sentinel modes at least comprise a pressure sensor monitoring sentinel mode, an AFE reverse awakening sentinel mode and a timing awakening sentinel mode; the battery target safety data at least comprises one or more of battery monomer voltage, battery module temperature, battery pack insulation resistance, battery pack pressure and battery pack total pressure.
Further, as an implementation of the method shown in fig. 2 to fig. 4, another sentinel-mode battery status monitoring device based on a power domain is provided in an embodiment of the present invention, and is used for implementing the method shown in fig. 2 to fig. 4. The embodiment of the apparatus corresponds to the embodiment of the method, and for convenience of reading, details in the embodiment of the apparatus are not described again one by one, but it should be clear that the apparatus in the embodiment can correspondingly implement all the contents in the embodiment of the method. As shown in fig. 6, the apparatus includes:
the monitoring unit 51 is used for simultaneously operating a pressure sensor monitoring sentinel mode, an AFE reverse awakening sentinel mode and a timing awakening sentinel mode to monitor the battery state based on the collected battery target safety data when the vehicle-mounted controller is in a dormant state; the battery target safety data at least comprise one or more of battery monomer voltage, battery module temperature, battery pack insulation resistance, battery pack pressure and battery pack total pressure.
Further, the pressure sensor monitors a sentinel model, and the monitoring unit 51 includes:
the monitoring module 511 is used for monitoring the pressure of the battery pack in real time through the BPS;
a first wake-up module 512, configured to wake up the HVM according to a preset wake-up rule when the pressure of the battery pack obtained from the monitoring module 511 is greater than a preset safe pressure threshold;
a determining module 513, configured to determine, according to a CAN message sent by the BPS and a battery thermal runaway fault alarm policy, that the HVM wakened up by the first wakening module 512 is triggered, where the CAN message sent by the BPS at least includes a battery pack pressure, a pressure increase slope, a battery cell voltage, and a battery module temperature;
an alarm module 514, configured to, when the battery thermal runaway fault alarm obtained from the determination module 513 is triggered, output a preset signal by the HVM to wake up the PDCS, and alarm by using the PDCS based on fault information corresponding to the battery thermal runaway fault alarm, where the fault information corresponding to the battery thermal runaway fault alarm is sent to the PDCS through an intranet CAN message;
a storage module 515, configured to, when the battery thermal runaway fault alarm obtained from the determining module 513 is not triggered, store the abnormal data of the battery pack pressure by the HVM, and enter a sleep mode.
Further, the AFE wakes up the sentinel mode reversely, and the monitoring unit 51 is configured to include:
an acquisition module 516, configured to acquire the cell voltage and the battery module temperature through a periodic wake-up process by the AFE;
a second wake-up module 517, configured to wake up the HVM according to a preset wake-up rule when the cell voltage obtained from the collecting module 516 is smaller than a preset threshold and/or the temperature of the battery module is not within a preset temperature range;
a second determining module 518, configured to determine, by using a preset diagnosis rule, whether an AFE reverse wake-up fault alarm is triggered based on the cell voltage and the battery module temperature acquired by the AFE, where the cell voltage and the battery module temperature are acquired by the TPL, where the AFE reverse wake-up fault at least includes an abnormal fault of the cell voltage and an abnormal fault of the battery module temperature;
a second alarm module 519, configured to, when the AFE reverse wake-up fault alarm obtained from the second determination module 518 is triggered, output a preset signal by the HVM to wake up the PDCS, and alarm based on fault information corresponding to the AFE reverse wake-up fault alarm by using the PDCS, where the fault information corresponding to the AFE reverse wake-up fault alarm is sent to the PDCS through an intranet CAN message;
the second alarm module 519 is further configured to, when the AFE wake-up back fault alarm obtained from the second determination module 518 is not triggered, enter a sleep mode by the HVM.
Further, the monitoring unit 51, which is configured to wake up the sentinel mode at regular time, includes:
a third wake-up module 520, configured to wake up the PDCS by using the RTC according to a preset time period, and the PDCS further wakes up the HVM;
an obtaining module 521, configured to obtain target security data from the HVM awakened by the third awakening module 520, where the target security data at least includes a battery cell voltage of a battery pack, a battery module temperature, a battery pack insulation resistance, a battery pack pressure, and a battery pack total pressure;
a third determining module 522, configured to determine, by the HVM, whether a preset battery safety hazard fault occurs based on the target safety data obtained from the obtaining module 521, where the preset battery safety hazard fault at least includes the battery thermal runaway fault, an abnormal fault of the battery cell voltage, and an abnormal fault of the battery module temperature;
a third alarm module 523, configured to alarm by using the PDCS when a preset battery potential safety hazard fault occurs in the battery obtained from the third determining module 522.
The third warning module 523 is further configured to, when the battery obtained from the third determining module 522 does not have a fault of a preset potential safety hazard of the battery, enter a sleep mode by the HVM.
Further, the first wake-up module 512 includes:
the first wake-up submodule 5121 is configured to, when the pressure of the battery pack is greater than the preset safety pressure threshold, the BPS wakes up the PMIC by sending a preset signal to the PMIC;
a second wake-up sub-module 5122, configured to wake up the HVM by supplying power to the MCU through the PMIC obtained from the first wake-up sub-module 5121.
Further, the second wake-up module 517 includes:
an activating sub-module 5171, configured to, when the cell voltage is less than a preset threshold and/or the battery module temperature is not within a preset temperature range, the AFE activates the TPL by sending a wake-up pulse signal to the TPL, where the wake-up pulse signal is generated by the AFE on the TPL bus;
a first wake-up submodule 5172, configured to wake up the PMIC by sending a preset signal to the PMIC from the activated TPL obtained by the activation submodule 5171;
a second wake-up sub-module 5173, configured to wake up the HVM by supplying power to the MCU through the PMIC obtained from the first wake-up sub-module 5172.
Further, the third wake-up module 520 includes:
a first wake-up sub-module 5201, configured to wake up the PMIC by the RTC sending a preset wake-up signal to the PMIC according to a preset time period;
a second wake-up sub-module 5202, configured to wake up the PDCS by supplying power to the MCU from the PMIC that is woken up by the first wake-up sub-module 5201;
a third wake-up sub-module 5203, configured to output a preset signal to wake up the HVM from the PDCS woken up by the second wake-up sub-module 5202.
Further, an embodiment of the present invention further provides a processor, where the processor is configured to execute a program, where the program executes the method for monitoring the state of the sentinel-mode battery based on power domain as described in fig. 1-2.
Further, an embodiment of the present invention further provides a storage medium, where the storage medium is used to store a computer program, where the computer program is run to control a device in which the storage medium is located to execute the method for monitoring the state of the battery in the sentinel mode based on power domains as described in fig. 1-2.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
It will be appreciated that the relevant features of the method and apparatus described above may be referred to one another. In addition, "first", "second", and the like in the above embodiments are for distinguishing the embodiments, and do not represent merits of the embodiments.
It can be clearly understood by those skilled in the art that, for convenience and simplicity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
The algorithms and displays presented herein are not inherently related to any particular computer, virtual machine, or other apparatus. Various general purpose systems may also be used with the teachings herein. The required structure for constructing such a system is apparent from the description above. Moreover, the present invention is not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of the present invention as described herein, and any descriptions of specific languages are provided above to disclose the best mode of the invention.
In addition, the memory may include volatile memory in a computer readable medium, random Access Memory (RAM) and/or nonvolatile memory such as Read Only Memory (ROM) or flash memory (flash RAM), and the memory includes at least one memory chip.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). The memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that 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 phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims (10)

1. A sentinel mode battery state monitoring method based on a power domain is characterized by comprising the following steps:
when the vehicle-mounted controller is in a dormant state, simultaneously operating a pressure sensor to monitor a sentinel mode, an AFE reverse awakening sentinel mode and a timing awakening sentinel mode to monitor the battery state based on the collected battery target safety data respectively; the battery target safety data at least comprise one or more of battery monomer voltage, battery module temperature, battery pack insulation resistance, battery pack pressure and battery pack total pressure.
2. The method of claim 1, wherein the pressure sensor monitors sentinel patterns, comprising:
monitoring the pressure of the battery pack in real time through the BPS;
when the pressure of the battery pack is greater than a preset safe pressure threshold value, awakening the HVM by using a preset awakening rule;
the HVM judges whether the battery thermal runaway fault alarm is triggered or not according to the CAN message sent by the BPS and a battery thermal runaway fault alarm strategy, wherein the CAN message sent by the BPS at least comprises battery pack pressure, pressure increase slope, battery monomer voltage and battery module temperature;
when the battery thermal runaway fault alarm is triggered, the HVM outputs a preset signal to wake up the PDCS, and alarms based on fault information corresponding to the battery thermal runaway fault alarm by using the PDCS, wherein the fault information corresponding to the battery thermal runaway fault alarm is sent to the PDCS through an intranet CAN message;
when the battery thermal runaway fault alarm is not triggered, the HVM stores abnormal data of the battery pack pressure and enters a sleep mode.
3. The method of claim 1, wherein the AFE wakes sentinel mode backward, comprising:
the AFE acquires the voltage of a single battery and the temperature of a battery module through a periodic awakening process;
when the voltage of the battery monomer is smaller than a preset threshold value and/or the temperature of the battery module is not within a preset temperature range, awakening the HVM by using a preset awakening rule;
the HVM judges whether an AFE reverse wake-up fault alarm is triggered or not by using a preset diagnosis rule based on the cell voltage acquired by the AFE and the temperature of the battery module, wherein the cell voltage acquired by the TPL and the temperature of the battery module are acquired by the TPL, and the AFE reverse wake-up fault at least comprises an abnormal fault of the cell voltage and an abnormal fault of the temperature of the battery module;
when the AFE reverse wake-up fault alarm is triggered, the HVM outputs a preset signal to wake up the PDCS, and alarms based on fault information corresponding to the AFE reverse wake-up fault alarm by using the PDCS, wherein the fault information corresponding to the AFE reverse wake-up fault alarm is sent to the PDCS through an intranet CAN message;
when the AFE reverse wake-up fault alarm is not triggered, the HVM enters a sleep mode.
4. The method of claim 1, wherein the timed wake-up sentinel mode comprises:
awakening the PDCS by using an RTC according to a preset time period, and further awakening the HVM by the PDCS;
the HVM acquires target safety data, wherein the target safety data at least comprises battery pack battery monomer voltage, battery module temperature, battery pack insulation resistance, battery pack pressure and battery pack total pressure;
the HVM judges whether a preset battery potential safety hazard fault occurs or not based on the target safety data, wherein the preset battery potential safety hazard fault at least comprises a battery thermal runaway fault, an abnormal fault of the single battery voltage and an abnormal fault of the battery module temperature;
when the battery has a fault of a preset battery potential safety hazard, the PDCS is used for alarming;
and when the battery has no fault of the potential safety hazard of the preset battery, the HVM enters a sleep mode.
5. The method according to claim 2, wherein when the battery pack pressure is greater than a preset safe pressure threshold, then waking up an HVM using a preset wake-up rule, comprising:
when the battery pack pressure is greater than the preset safe pressure threshold value, the BPS wakes up the PMIC by sending a preset signal to the PMIC;
and the PMIC wakes up the HVM by supplying power to the MCU.
6. The method according to claim 3, wherein when the cell voltage is less than a preset threshold and/or the battery module temperature is not within a preset temperature range, waking up the HVM by using a preset wake-up rule, comprising:
when the voltage of the single battery is smaller than a preset threshold value and/or the temperature of the battery module is not within a preset temperature range, the AFE activates the TPL by sending a wake-up pulse signal to the TPL, wherein the wake-up pulse signal is generated on a TPL bus by the AFE;
the activated TPL wakes up the PMIC by sending a preset signal to the PMIC;
and the PMIC wakes up the HVM by supplying power to the MCU.
7. The method of claim 4, wherein waking up the PDCS using the RTC according to a preset time period and further waking up the HVM by the PDCS comprises:
according to a preset time period, the RTC sends a preset awakening signal to the PMIC to awaken the PMIC;
the PMIC wakes the PDCS for the MCU through supplying power;
and the PDCS outputs a preset signal to wake up the HVM.
8. A sentinel-mode battery condition monitoring device for use in a power domain-based power domain, comprising:
the monitoring unit is used for simultaneously operating the pressure sensor monitoring sentry mode, the AFE reverse awakening sentry mode and the timing awakening sentry mode to monitor the battery state based on the collected battery target safety data when the vehicle-mounted controller is in the dormant state; the battery target safety data at least comprise one or more of battery monomer voltage, battery module temperature, battery pack insulation resistance, battery pack pressure and battery pack total pressure.
9. A storage medium comprising a stored program, wherein the program, when executed, controls a device on which the storage medium is located to perform the method for monitoring the state of a battery of a sentinel-based power domain mode according to any one of claims 1 to 7.
10. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program implements the powerdomain-based sentinel mode battery status monitoring method of any one of claims 1 to 7.
CN202211489838.2A 2022-11-25 2022-11-25 Sentinel mode battery state monitoring method and device based on power domain Pending CN115932587A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117746601A (en) * 2024-02-07 2024-03-22 深圳市震有智联科技有限公司 Optical storage mobile sentinel control system based on AI intelligence

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117746601A (en) * 2024-02-07 2024-03-22 深圳市震有智联科技有限公司 Optical storage mobile sentinel control system based on AI intelligence
CN117746601B (en) * 2024-02-07 2024-05-10 深圳市震有智联科技有限公司 Optical storage mobile sentinel control system based on AI intelligence

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