CN110979014A - Power supply safety monitoring method, device and system and vehicle - Google Patents

Power supply safety monitoring method, device and system and vehicle Download PDF

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Publication number
CN110979014A
CN110979014A CN201911150243.2A CN201911150243A CN110979014A CN 110979014 A CN110979014 A CN 110979014A CN 201911150243 A CN201911150243 A CN 201911150243A CN 110979014 A CN110979014 A CN 110979014A
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China
Prior art keywords
power supply
monitoring
safety
module
vehicle
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CN201911150243.2A
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CN110979014B (en
Inventor
荣常如
闻继伟
刘轶鑫
许立超
于春洋
卢青伟
马腾翔
孟祥宇
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FAW Group Corp
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FAW Group Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/12—Recording operating variables ; Monitoring of operating variables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G07C5/0808—Diagnosing performance data
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G07C5/0841—Registering performance data
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

Abstract

The invention discloses a power supply safety monitoring method, a device, a system and a vehicle, wherein a safety model and a safety monitoring target are obtained according to the hazard cause of a vehicle operation scene; detecting monitoring parameters of power supply monitoring elements according to the safety monitoring target; and determining a safety control strategy according to the obtained monitoring parameter values of the power supply monitoring elements. The safety monitoring of the vehicle power supply is realized, the safety of the power supply system under different operation scenes is guaranteed, and the safety of the vehicle is enhanced.

Description

Power supply safety monitoring method, device and system and vehicle
Technical Field
The invention relates to the technical field of new energy automobiles, in particular to a power supply safety monitoring method, a power supply safety monitoring device, a power supply safety monitoring system and a vehicle.
Background
With the development of automobile electromotion, networking, intellectualization and sharing, the new energy automobile provides higher safety requirements for a vehicle power supply while improving the driving range, and how to identify the cause of harm in different modes of the vehicle, the failure of the power supply management function is identified in time, the timely starting of a safety control strategy is realized, the safety of the vehicle is improved, and the new energy automobile becomes a research focus in related fields.
Disclosure of Invention
The invention provides a power supply safety monitoring method, a power supply safety monitoring device, a power supply safety monitoring system and a vehicle, which are used for realizing vehicle power supply safety monitoring, finding the risk of harm to the vehicle in time and improving safety.
The technical scheme of the invention is as follows:
in a first aspect, a power supply safety monitoring method is provided, and the method comprises the steps of obtaining a safety model and a safety monitoring target according to a hazard cause of a vehicle operation scene; detecting monitoring parameters of power supply monitoring elements according to the safety monitoring target; and determining a safety control strategy according to the obtained monitoring parameter values of the power supply monitoring elements.
The harm causes according to the vehicle operation scene comprise failure of a power supply function of a power supply, failure of insulation of the power supply, failure of a charging function of a power supply system, failure of a heat management function of the power supply, failure of a communication function of the power supply and collision of the power supply.
In the invention, the step of obtaining the safety model according to the hazard cause of the vehicle running scene comprises the step of operating and training the safety model according to the vehicle running scene; and/or training the safety model based on diagnostic information of the vehicle; and/or training the safety model according to the danger parameters which violate the set safety monitoring target of the vehicle; and/or training the safety model based on historical incidents of the power source.
The power supply monitoring element comprises a battery monomer, a wire harness, a box body, a sensor, an electrical accessory, a controller and an actuator. The monitoring parameters of the monitoring elements comprise current, voltage, temperature, humidity, deformation, control signals, communication signals, collision signals and/or insulation signals.
In the invention, the safety monitoring target comprises at least one of the following steps of preventing the power supply power from being out of control of heat, preventing unexpected deceleration caused by power supply interruption of the power supply power and preventing electric shock.
In the invention, the power supply monitoring method further comprises the step of uploading the monitoring parameters of the power supply monitoring elements to a cloud monitoring module, so that the cloud monitoring module determines a safety control strategy according to the monitoring parameters of the power supply monitoring elements.
The safety control strategy comprises the steps of sending out a safety early warning, disconnecting a high-voltage loop of the power supply system and degrading the power supply output.
In a second aspect, there is provided a power supply safety monitoring apparatus, the apparatus comprising: the system comprises a first module, a second module and a third module, wherein the first module is used for acquiring a safety model and a safety monitoring target according to the hazard cause of a vehicle operation scene; the second module is used for detecting monitoring parameters of the power supply monitoring elements according to the safety monitoring target; and the third module is used for determining a safety control strategy according to the monitoring parameters of the power supply monitoring elements.
In a third aspect, a power supply system is provided, comprising a power supply for outputting a vehicle power output; the power supply comprises a first power supply and a second power supply, and when the first power supply fails to work, the second power supply supplies power to enable the vehicle to run; the power supply controller is used for controlling the power supply; one or more safety monitoring devices connected to the power supply and the power supply controller; the power supply system controller comprises a microprocessor module, wherein the microprocessor module is connected with the power supply module and comprises a main chip, a memory and running software, and the main chip comprises at least one of a multi-chip single core, a single-chip multi-core and a multi-chip multi-core;
one or more memories for storing one or more programs which, when executed by the one or more controllers, perform a method according to any of the embodiments of the invention.
The sensor module is connected with the power supply and used for acquiring monitoring parameter values of the power supply monitoring elements;
and the actuator module comprises a high-voltage contactor and a low-voltage relay. The communication module is used for communication among the microprocessor module, the sensor module, the actuator module, the power supply and the cloud monitoring module;
the communication module is used for communication among the microprocessor module, the sensor module, the actuator module, the power supply and the cloud monitoring module;
and the low-voltage power supply is used for supplying power to the microprocessor module, the sensor module, the actuator module and the safety monitoring device.
In a fourth aspect, a vehicle is provided, the vehicle comprising a power supply system for implementing the method according to any one of the embodiments of the invention. The operational scenario of the vehicle includes at least one of a land start, a land travel, a land stop, an air flight, an air hover, an air glide, and a landing.
The invention has the technical effects that: acquiring a safety model and a safety monitoring target according to the hazard cause of the vehicle operation scene; detecting monitoring parameters of power supply monitoring elements according to the safety monitoring target; and determining a safety control strategy according to the obtained monitoring parameter values of the power supply monitoring elements. The safety monitoring of the vehicle power supply is realized, the safety of the power supply system under different operation scenes is guaranteed, and the safety of the vehicle is enhanced.
Drawings
Fig. 1 is a flow chart of a power supply safety monitoring method according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a power supply safety monitoring device according to a second embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a power supply system according to a third embodiment of the present invention;
FIG. 4 is an exemplary diagram of a power supply safety monitoring system in accordance with an embodiment of the present invention;
FIG. 5 is an exemplary diagram of a power supply safety monitoring system in accordance with an embodiment of the present invention;
FIG. 6 is an exemplary diagram of a power supply safety monitoring system in accordance with an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a vehicle according to a fourth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be noted that, for convenience of description, only a part of the structures related to the present invention, not all of the structures, are shown in the drawings, and furthermore, embodiments of the present invention and features of the embodiments may be combined with each other without conflict.
Example one
Fig. 1 is a flow chart of a power supply safety monitoring method according to an embodiment of the present invention, where the present invention is applied to monitoring safety of a power supply of a vehicle, and the method may be performed by a power supply safety monitoring device, which may be implemented in hardware and/or software, as shown in fig. 1. The technical scheme of the power supply safety monitoring method provided by the invention specifically comprises the following steps:
step 101, obtaining a safety model and a safety monitoring target according to the hazard cause of the vehicle operation scene.
The safety model and the safety monitoring target can be obtained through hazard causes of a vehicle operation scene, and the safety model can be a pre-trained neural network model. The safety model can be trained through theoretical accidents, accident influence, accident diagnosis, vehicle operability and vehicle danger characteristic parameters under different operation scenes.
Further, the security model includes:
training the safety model according to historical system accidents; and/or training the safety model according to operation of a vehicle operating mode; and/or training the safety model based on diagnostic information of the vehicle; and/or training the safety model according to preset danger parameters of the vehicle.
The historical system accident can be data of a vehicle which has already suffered an accident, the historical system accident can comprise data of a theoretical accident and data of an actual accident, the operation can be operation data of vehicle operation, the diagnosis information can be diagnosis information of the vehicle, the diagnosis information can comprise information of normal operation and information of vehicle faults, and the dangerous characteristic parameter can be data of predicting the vehicle faults.
In the embodiment of the invention, the safety model can be trained according to historical system accidents, operation corresponding to the running mode of the vehicle, diagnosis information of the vehicle and danger parameters.
The harm cause can be the cause of the vehicle harm event, and can comprise power supply failure of a power supply, insulation failure of the power supply, charging failure of a power supply system, thermal management failure of the power supply, communication failure of the power supply and collision of the power supply.
The cause of the hazard is not limited by the subject being endangered, but rather indicates that there is at least one of the mentioned methods by which the present invention can be practiced. The hazard cause can be failure of a power supply function of the power supply, the hazard main body can be converted into the power supply, and the hazard cause of the power supply can be a vehicle hazard event caused by failure of the power supply. Illustratively, a power supply system failure includes a failure to provide power, a failure to provide power from a power supply system, and an unintended deceleration hazard resulting from the vehicle power supply providing less power than the power requirements of the drive motor; the power output of the vehicle power supply is blocked to cause over-discharge, and the vehicle power supply is damaged by thermal runaway; the power supply of the vehicle provides electric energy less than the power supply requirement of the thermal management system of the whole vehicle, so that thermal runaway is caused; the power output of a vehicle power supply is blocked to cause the thermal management system to dissipate heat at a certain cooling level to cause thermal runaway damage; the vehicle power supply provides the whole vehicle with the thermal management system starting time later than the demand time, which causes thermal runaway hazard. The power supply system provides energy isolation function failure, and the vehicle power supply is communicated with the vehicle body and the outside to discharge electricity, so that people get an electric shock. The power supply system receives high-voltage electric energy, and the function is invalid, and the vehicle power supply receives more extra electric energy than required during direct-current charging, so that thermal runaway damage is caused; after the vehicle power supply is fully charged by direct current charging, the vehicle power supply continuously receives the same amount of electric energy to cause thermal runaway damage; the direct current charging receives electric energy with unexpected demand to cause thermal runaway damage; receiving more extra electric energy than required when the vehicle power supply is charged in an alternating current manner to cause thermal runaway damage; after the alternating current of the vehicle power supply is fully charged, the vehicle power supply continues to receive the same amount of electric energy, so that thermal runaway damage is caused; receiving electric energy which is not required in an expected way when a vehicle power supply is charged in an alternating current manner to cause thermal runaway damage; the vehicle power supply receives more extra electric energy than required during feedback charging, so that thermal runaway damage is caused; receiving electric energy which is not expected to be required when a vehicle power supply is fed back for charging so as to cause thermal runaway damage; receiving more additional power than is required during regenerative charging of the vehicle's power supply can result in thermal runaway hazards. The thermal management function of the power supply system of the vehicle is failed, and the power supply of the vehicle receives more heating quantity than required to cause thermal runaway damage; the power supply of the vehicle continuously receives the same amount of heating quantity to cause thermal runaway damage; the vehicle power supply accepts less than the required heat dissipation energy resulting in thermal runaway hazards; the thermal runaway hazard is caused by the fact that a vehicle power supply does not accept the required heat dissipation energy; the time that the vehicle power supply receives heat dissipation is later than the demand time, which leads to thermal runaway hazard. The power supply system fails to receive the collision signal, and the vehicle power supply does not receive the collision signal, so that thermal runaway damage is caused; the vehicle power supply receives a signal later than the demand time, which causes thermal runaway hazard.
Safety monitoring objectives may include preventing thermal runaway of the power supply, preventing unintended deceleration due to interruption of power supply to the power supply, and preventing electric shock.
The security is not limited by the monitored object but means that there is at least one of the mentioned methods in which the invention can be implemented. The safety monitoring target prevents unexpected deceleration caused by power supply interruption of the power supply, and the safety monitoring target can be converted into prevention of unexpected acceleration.
The operating scenario may be different driving modes of the vehicle, and may include different driving terrains, such as sand, plateau, snow, water and/or air.
Specifically, the safety model and the safety monitoring target can be obtained according to the hazard cause of the vehicle operation scene, the vehicle operation scene in the safety model can be stored in association with the hazard cause and the safety monitoring target, and the hazard cause and the safety monitoring target in different operation modes can be different. For example, the hazard cause and safety monitoring objectives of the power supply of the vehicle in ground operation, takeoff and flight scenarios may be determined based on system theoretical accident models, processes, impacts, diagnostics, hazards, operability, and pre-hazards.
Further, the operation scene of the vehicle in the embodiment of the present invention includes at least one of land start, land travel, land stop, air flight, air hover, air glide and landing.
In the present invention, the vehicle is not limited by the operating scenario, but means that there is at least one mentioned method in which the present invention can be implemented. The operation scene can be manned, and the operation scene can be converted into unmanned driving.
And 102, detecting monitoring parameters of the power supply monitoring elements according to the safety monitoring target.
The power supply monitoring element comprises a battery monomer, a wire harness, a box body, a sensor, an electrical accessory, a controller and an actuator.
The power supply monitoring elements at least comprise two power supplies, specifically, the function of the first power supply is disabled, and the second power supply supplies power to enable the vehicle to run. The power supply has different chemical systems, and may specifically include a lithium ion battery, a fuel cell, a metal air battery, a flow battery, a solid-state battery, a solar cell, a zinc ion battery, a sodium ion battery, a super capacitor, a nickel metal hydride battery, and a lead-acid battery, and it is understood that the batteries in the power supply may not be the same chemical system at the same time.
The first power source is a lithium ion battery, the second power source is a super capacitor, and the lithium ion battery and the super capacitor are not limited to the type of the electrochemical system of the power source, but indicate that at least one mentioned method for realizing the method is available. The lithium ion battery can be converted into a fuel battery, and the super capacitor can be converted into a lithium ion battery.
The monitoring parameters of the monitoring elements comprise current, voltage, temperature, humidity, deformation, control signals and/or communication signals, collision signals and/or insulation signals.
And 103, determining a safety control strategy according to the obtained monitoring parameter values of the power supply monitoring elements.
The obtained monitoring parameters of the power supply monitoring elements are compared with the safety model and the safety monitoring target, the dangerous state of the power supply is judged, and the safety control strategy is determined.
The monitoring parameters of the power supply monitoring elements are compared with the safety model and the safety monitoring target, and the comparison is not limited to a dangerous state judgment method, but represents that at least one mentioned method capable of realizing the method exists. The dangerous state judging method can be used for comparing the monitoring parameters with the safety model and the safety monitoring target in an online and real-time manner, and can be used for uploading the monitoring parameters to the cloud monitoring module and comparing the monitoring parameters with the safety model and the safety monitoring target.
Monitoring parameters of the power supply monitoring elements are uploaded to the cloud monitoring module, so that the cloud monitoring module determines a safety control strategy according to the monitoring parameters of the power supply monitoring elements.
The monitoring parameters of the power supply monitoring elements are uploaded to the cloud monitoring module, and uploading of the monitoring parameters is not limited by an uploading time interval, but means that at least one mentioned method capable of achieving the method of the invention exists. The time interval of uploading the monitoring parameters to the cloud monitoring module can be 1min, and the time interval of uploading the monitoring parameters to the cloud monitoring module can be changed into 2 h.
And the safety control strategy comprises the steps of sending out a safety early warning, disconnecting the high-voltage loop of the power supply system and degrading the power supply output.
The security is not limited by a control strategy but means that there is at least one mentioned method in which the invention can be implemented. The safety control strategy is to disconnect a high-voltage loop of the power supply system, and the safety control strategy can be converted into a mechanical safety mechanism of the power supply system.
Example two
Fig. 2 is a schematic structural diagram of a power supply safety monitoring device according to a second embodiment of the present invention, where the power supply safety monitoring device according to the present invention can execute any power supply safety monitoring method provided by the present invention, and has corresponding functional modules and beneficial effects for executing the method according to the present invention. The device can be implemented by software and/or hardware, and specifically comprises: a first module 201, a second module 202 and a third module 203.
The first module 201 is configured to obtain a safety model and a safety monitoring target according to a hazard cause of a vehicle operation scene.
And a second module 202, configured to detect a monitoring parameter of the power supply monitoring element according to the safety monitoring target.
And a third module 203, configured to determine a safety control strategy according to the obtained monitoring parameter value of the power supply monitoring element.
The power safety monitoring device is not limited by whether software and/or hardware are integrated, but rather indicates that there is at least one of the mentioned methods in which the present invention may be implemented. The power supply safety monitoring device can be an independent device integrated together, and can also be changed into a microprocessor monitoring module, a cloud monitoring module and a monitoring module built in a low-voltage power supply module.
Further, on the basis of the above-mentioned embodiment of the invention, the hazard cause according to the vehicle operation scenario in the first module 201 includes at least one of the following: the method comprises the following steps of power supply failure of a power supply, power supply insulation failure, power supply system charging failure, power supply heat management failure, power supply communication failure and power supply collision.
Further, on the basis of the above embodiment of the present invention, the obtaining, in the first module 201, the safety model according to the hazard cause of the vehicle operation scene includes:
training the safety model according to vehicle operation scene operation; and/or training the safety model based on diagnostic information of the vehicle; and/or training the safety model according to the danger parameters which violate the set safety monitoring target of the vehicle; and/or training the safety model based on historical incidents of the power source.
Further, on the basis of the above embodiment of the invention, the power-based power source monitoring elements in the second module 202 include:
the device comprises a battery monomer, a wire harness, a box body, a sensor, an electrical accessory, a controller and an actuator; the monitoring parameters of the monitoring elements comprise current, voltage, temperature, humidity, deformation, control signals, communication signals, collision signals and/or insulation signals.
Further, on the basis of the above-mentioned embodiment of the invention, the first module 201 includes at least one of preventing the power supply from being out of thermal control, preventing unexpected deceleration caused by power supply interruption of the power supply, and preventing electric shock.
Further, on the basis of the above embodiment of the invention, the method further includes:
the fourth module is used for uploading the monitoring parameters of the power supply monitoring elements to the cloud monitoring module so that the cloud monitoring module determines a safety control strategy according to the monitoring parameters of the power supply monitoring elements; the safety control strategy comprises the steps of sending out a safety early warning, disconnecting a high-pressure loop of the power supply system and degrading the power supply output.
Further, on the basis of the above embodiment of the invention, the method further includes:
one or more memories for storing one or more programs, when the one or more programs are executed by the one or more controllers.
EXAMPLE III
Fig. 3 is a schematic structural diagram of a power supply system according to a third embodiment of the present invention. The power supply system of the invention comprises a power supply, a power output module and a power output module, wherein the power supply is used for outputting vehicle power output; the power supply comprises a first power supply and a second power supply, and when the first power supply fails to work, the second power supply supplies power to enable the vehicle to run; the power supply controller is used for controlling the power supply; one or more safety monitoring devices connected to the power supply and the power supply controller.
The power supply comprises a first power supply and a second power supply, and when the first power supply fails to work, the second power supply supplies power to enable the vehicle to run.
The power supply system provides energy isolation including vehicle body and external electric energy isolation and vehicle body and external heat energy isolation. The power supply system receives high-voltage electric energy including direct current charging, alternating current charging and feedback charging. The power supply system receives electric energy of a 12V storage battery and electric energy of the second DC/DC converter. The power supply system receives the heat management of the whole vehicle, and the heat management comprises heating and heat dissipation.
The power supply system controller comprises a microprocessor module, wherein the microprocessor module is connected with the power supply module, the microprocessor module comprises a main chip, a memory and running software, and the main chip comprises at least one of a multi-chip single core, a single-chip multi-core and a multi-chip multi-core. One or more memories for storing one or more programs, when the one or more programs are executed by the one or more controllers.
And the sensor module is connected with the power supply and used for acquiring the monitoring parameter value of the power supply monitoring element. And the actuator module comprises a high-voltage contactor and a low-voltage relay. And the communication module is used for communication among the microprocessor module, the sensor module, the actuator module, the power supply and the cloud monitoring module. And the low-voltage power supply is used for supplying power to the microprocessor module, the sensor module, the actuator module and the safety monitoring device.
The safety monitoring device acquires monitoring parameters of the monitoring elements including current, voltage, temperature, humidity, deformation, control signals and/or communication signals, collision signals and/or insulation signals by distributing a safety monitoring target to power supply monitoring elements of a sensor module, a microprocessor module, an actuator module, a low-voltage power supply module, a communication module and a microprocessor monitoring module in the system, and determines a safety control strategy according to the acquired monitoring parameter values of the power supply monitoring elements, so that the thermal runaway of a power supply is prevented, the unexpected deceleration of a vehicle is prevented, and the electric shock of the power supply is prevented.
The power supply system according to the embodiment of the present invention, as shown in fig. 3, includes a first power supply, a second power supply, a first DC/DC converter, a second DC/DC converter, a sensor module, a microprocessor module, an actuator module, a low-voltage power supply module, a communication module, a microprocessor monitoring module, a cloud monitoring module, and a bus. The low-voltage power supply module is connected with the sensor module, the microprocessor module, the actuator module, the communication module and the microprocessor monitoring module through a first DC/DC converter; the sensor module is connected with a first power supply and a second power supply, the microprocessor module is connected with the actuator module, the communication module and the microprocessor monitoring module, and the communication module is connected with the cloud monitoring module.
Fig. 4 to fig. 6 are exemplary diagrams of a power supply safety monitoring system according to an embodiment of the present invention, where in an embodiment of the present invention, the microprocessor module may include a master chip, and the master chip may be a multi-chip single core, a single-chip multi-core, or a multi-chip multi-core. The MCU0 of the microprocessor module chip is a main control unit, the MCU1 is an auxiliary unit, in operation, the MCU1 keeps monitoring the state of the MCU0 in real time, but does not execute output action, and when the MCU0 is monitored to have failure endangering safety, the actuator module is started to keep the system in a continuous safety state. In another possible embodiment, the microprocessor module chips MCU0 and MCU1 may be chips that execute the same function, both belong to the main control unit, and may monitor each other; the two output the control result and the monitoring result of the two and the other side to the actuator module through the bus message, and finally the execution unit determines to execute the output. In another possible embodiment, the MCU0 and the MCU1 may be divided into one group, the microprocessor module may have multiple groups of chips, and the multiple groups of chips may implement corresponding functions of the power safety monitoring system, and further, multiple cores in the microprocessor module may be in parallel and may include multiple groups of MCU0 and MCU 1.
Example four
Fig. 7 is a schematic structural diagram of a vehicle according to a fourth embodiment of the present invention, as shown in fig. 7, the vehicle includes a power supply system 41, an input device 42, and an output device 43; the operation scene of the vehicle in the embodiment of the invention comprises at least one of land start, land driving, land stop, air flight, air hovering, air gliding and landing. The vehicle power supply system 41 may include a power supply 411, a controller 412 and a safety monitoring device 413, wherein the number of the controllers 412 may be one or more, and one controller 412 is illustrated in fig. 7 as an example; the power source 411, the controller 412, the safety monitoring device 413, the input device 42, and the output device 43 in the vehicle may be connected by a bus or other means, and the bus connection is exemplified in fig. 7.
The safety monitoring apparatus 413 may include a computer-readable storage medium for storing software programs, computer-executable programs, and modules, such as program modules (e.g., the first module 201, the second module 202, and the third module 203) corresponding to the power safety monitoring method in the embodiment of the present invention. The safety monitoring device executes various functional applications and data processing of the vehicle by running the software programs, instructions and modules in 413, so as to realize the power supply safety monitoring method.
The security monitoring apparatus 413 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. In addition, the security monitoring apparatus 413 may include a high-speed random access memory, and may further include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some examples, the security monitoring device 413 may be further remotely located with respect to the controller 40, and may be connected to the device via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 42 is operable to receive input numeric or character information and to generate key signal inputs relating to user settings and function controls of the vehicle. The output device 43 may include a display device such as a display screen. The power supply 411 is used for outputting vehicle power to drive the vehicle to run.
EXAMPLE five
An embodiment of the present invention further provides a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform a power supply safety monitoring method, including:
acquiring a safety model and a safety monitoring target according to the hazard cause of the vehicle operation scene;
detecting monitoring parameters of power supply monitoring elements according to the safety monitoring target;
and determining a safety control strategy according to the obtained monitoring parameter values of the power supply monitoring elements.
Of course, the storage medium containing the computer-executable instructions provided by the embodiments of the present invention is not limited to the method operations described above, and may also perform related operations in the power safety monitoring method provided by any embodiment of the present invention.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.
It should be noted that, in the embodiment of the power supply safety monitoring device, the included units and modules are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be realized; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention. It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. A power supply safety monitoring method is characterized by comprising the following steps:
acquiring a safety model and a safety monitoring target according to the hazard cause of the vehicle operation scene;
detecting monitoring parameters of power supply monitoring elements according to the safety monitoring target;
and determining a safety control strategy according to the obtained monitoring parameter values of the power supply monitoring elements.
2. The power supply safety monitoring method according to claim 1, wherein the hazard cause according to the vehicle operation scene comprises at least one of the following: the method comprises the following steps of power supply failure of a power supply, power supply insulation failure, power supply system charging failure, power supply heat management failure, power supply communication failure and power supply collision.
3. The power supply safety monitoring method according to claim 1, wherein the obtaining of the safety model according to the hazard cause of the vehicle operation scene comprises:
training the safety model according to vehicle operation scene operation; and/or
Training the safety model according to the diagnosis information of the vehicle; and/or
Training the safety model according to the danger parameters which violate the set safety monitoring target of the vehicle; and/or
And training the safety model according to the historical accidents of the power supply.
4. The power supply safety monitoring method according to claim 1, wherein the power supply monitoring element comprises:
the device comprises a battery monomer, a wire harness, a box body, a sensor, an electrical accessory, a controller and an actuator;
the monitoring parameters of the monitoring elements comprise current, voltage, temperature, humidity, deformation, control signals, communication signals, collision signals and/or insulation signals.
5. The power supply safety monitoring method according to claim 1, wherein the safety monitoring target comprises at least one of prevention of thermal runaway of the power supply, prevention of unexpected deceleration caused by power interruption of the power supply, and prevention of electric shock.
6. The method for monitoring the power supply of claim 1, further comprising:
uploading the monitoring parameters of the power supply monitoring elements to a cloud monitoring module, so that the cloud monitoring module determines a safety control strategy according to the monitoring parameters of the power supply monitoring elements;
the safety control strategy comprises the steps of sending out a safety early warning, disconnecting a high-pressure loop of the power supply system and degrading the power supply output.
7. A power supply safety monitoring device, the device comprising: the system comprises a first module, a second module and a third module, wherein the first module is used for acquiring a safety model and a safety monitoring target according to the hazard cause of a vehicle operation scene; the second module is used for detecting monitoring parameters of the power supply monitoring elements according to the safety monitoring target; and the third module is used for determining a safety control strategy according to the monitoring parameters of the power supply monitoring elements.
8. A powered electrical power system, the system comprising:
a power supply for outputting vehicle power output;
the power supply comprises a first power supply and a second power supply, and when the first power supply fails to work, the second power supply supplies power to enable the vehicle to run;
the power supply controller is used for controlling the power supply;
one or more safety monitoring devices connected to the power supply and the power supply controller;
one or more memories for storing one or more programs which when executed by the one or more controllers perform the method of any of claims 1-6.
9. The power supply system of claim 8, further comprising:
the microprocessor module is connected with the power supply module and comprises a main chip, a memory and running software, wherein the main chip comprises at least one of a multi-chip single core, a single-chip multi-core and a multi-chip multi-core;
the sensor module is connected with the power supply and used for acquiring a power supply index of the power supply;
the actuator module comprises a high-voltage contactor and a low-voltage relay;
the communication module is used for communication among the microprocessor module, the sensor module, the actuator module, the power supply and the cloud monitoring module;
and the low-voltage power supply is used for supplying power to the microprocessor module, the sensor module, the actuator module and the safety monitoring device.
10. A vehicle, characterized in that the vehicle comprises:
a power supply system for implementing the method of any one of claims 1-6;
the operational scenario of the vehicle includes at least one of a land start, a land travel, a land stop, an air flight, an air hover, an air glide, and a landing.
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