CN112277661A - Intelligent energy management system and method based on all-electric drive vehicle-mounted platform - Google Patents
Intelligent energy management system and method based on all-electric drive vehicle-mounted platform Download PDFInfo
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- CN112277661A CN112277661A CN202011220851.9A CN202011220851A CN112277661A CN 112277661 A CN112277661 A CN 112277661A CN 202011220851 A CN202011220851 A CN 202011220851A CN 112277661 A CN112277661 A CN 112277661A
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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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
- B60L50/15—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with additional electric power supply
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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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/40—Electric propulsion with power supplied within the vehicle using propulsion power supplied by capacitors
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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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
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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
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/32—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed
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- 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
- Y02T10/62—Hybrid vehicles
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- 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
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- 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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- 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
- Y02T10/72—Electric energy management in electromobility
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- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention aims to provide an energy management system of a full-electric propulsion vehicle-mounted platform, which adopts a centralized control and management mode to eliminate a unit remote control box and a battery pack main control board so as to reduce the system control complexity, improve the system energy density, improve the system control instantaneity and the like. Meanwhile, energy management and intelligent technologies are fused, an intelligent energy management framework is provided, an energy intelligent analysis display platform is constructed, the level of autonomy of weapon system decision is improved, intelligent interaction with users is realized, a typical working mode of the full-electric drive vehicle is divided into multiple power supply modes, and the full-electric drive vehicle works in a high-efficiency interval as much as possible by coordinating and transferring the working points of the engine, so that high fuel economy is obtained. The vehicle is operated in the high-efficiency area.
Description
Technical Field
The invention relates to the technical field of intelligent energy management, in particular to an intelligent energy management system based on a full-electric drive vehicle-mounted platform.
Background
With the development of power electronic technology, the 'full electric drive' has been gradually explored and applied to platforms such as ships, underwater, unmanned planes and vehicles, and has important significance for improving the efficiency of a combat system, realizing simplification of a control mode, increasing maneuverability and flexibility, reducing emission and saving energy, and is a mainstream trend of the development of a power system.
Us patent publication 20140332301a1 discloses a power transmission system with a single electric motor for a purely electric drivable motor vehicle, and describes a "purely electric vehicle" in which both the front and rear drive shafts of the vehicle are driven by electric motors and a battery mounted on the vehicle is used as a power source for the electric motors. In this patent, the combination of an electric motor and a transmission is described with emphasis. In chinese patent publication CN106740041A, a new energy automobile is disclosed, which uses a hybrid power system, an alcohol fuel engine drives a generator to generate electricity, the electric power of the generator charges a vehicle-mounted storage battery, and the output electric power of the vehicle-mounted storage battery and/or the generator supplies power to a motor driving wheels. The vehicle has a hybrid power manager for controlling the mode of charging the accumulator by the generator, and a plurality of power supply modes of driving the motor by adopting the accumulator to supply power independently or simultaneously with the generator. The Chinese patent publication CN107600010A discloses a chassis topological structure of a highly reliable and highly motorized all-electric drive special vehicle, the provided all-electric drive vehicle is provided with a control module for detecting the whole vehicle state and the state of a power supply mechanism, the control mechanism is connected with a plurality of detection modules and sensors of the whole vehicle, and alarms are sent out according to the monitoring data of the detection modules to the abnormal state of the vehicle so as to provide fault display. The control module also controls the mode of the power supply mechanism for outputting the electric energy to the power mechanism.
In the all-electric drive vehicle-mounted platform, an 'energy system' is used as core power, and not only drives a wheel-side (hub) motor of a launching vehicle to provide vehicle running power, but also provides primary energy for an upper electric energy conversion device, so that power supply of a combat task is ensured. In the past, only the construction of equipment and the output of energy are usually paid attention to in the research of an energy system, a distributed control method aiming at the energy equipment is adopted, and an energy management system which is based on a fully-electrically-driven vehicle-mounted platform and has the characteristics of centralization and intellectualization is not formed.
Disclosure of Invention
The energy system of the existing fully-electrically-driven vehicle-mounted platform mainly comprises a diesel generator set, a power battery pack, a secondary power supply, power distribution equipment and the like, wherein the diesel generator set and the power battery pack are used as primary energy sources of a core and are respectively provided with an independent and distributed control system; on the other hand, the prior art platform does not have the characteristic of energy management, and only realizes the basic information transmission, power supply and power distribution functions.
The invention aims to build an energy management system of a fully-electric drive vehicle-mounted platform, and aims to reduce the system control complexity, improve the system energy density, improve the system control instantaneity and the like by adopting a centralized control and management mode and canceling a unit remote control box and a battery pack main control board; meanwhile, energy management and intelligent technology are fused, an intelligent energy management framework is provided, an energy intelligent analysis display platform is constructed, the level of autonomy of weapon system decision is improved, and intelligent interaction with users is realized.
The invention provides an integrated intelligent energy management system based on a full-electric drive vehicle-mounted platform, which comprises a power battery pack and a diesel generating set, wherein the power battery pack and the diesel generating set are controlled by an integrated energy management unit; the integrated energy management unit is connected with the power battery pack and the diesel generator set through a CAN bus interface; the integrated energy management unit can acquire data information of working conditions of the power battery pack, the diesel generator set, the rectification conversion device and the bidirectional conversion device in real time by distributing a plurality of sensors and detection modules of all systems of the whole vehicle; controlling the diesel generating set to start or stop, and controlling various charging or discharging operations of the power battery pack; controlling electric drive modes of different combinations of the diesel generator set and the power battery pack;
furthermore, the integrated energy management unit further comprises an energy intelligent analysis and presentation platform, the energy intelligent analysis and presentation platform comprises a display device and/or an information pushing module, the energy intelligent analysis and presentation platform comprises a system management module, a real-time power consumption curve module, an information detail module, a comprehensive guarantee module and an intelligent analysis library module, and the system management module analyzes the acquired system data information and processes and analyzes the fault data information; counting the failure times and failure reasons of the equipment, and providing a maintenance prompt; the display device and/or the information pushing module is used for displaying and/or pushing the data information of the real-time working conditions obtained by the detection to a user, displaying the curve relation among time, voltage, current and energy capacity under different temperature environments, displaying the fault state, predicting and diagnosing the fault and maintaining the maintenance rule; and stores the fault data and the cause of the fault in a system database.
Furthermore, the integrated energy management unit is connected with the sensor through the CAN interface, detects the single voltage and the output current of the power battery pack and the temperature of each single battery of the power battery pack, performs data acquisition on the voltage, the current and the temperature data, and realizes SOC calculation, insulation performance detection, balance control and protection control.
Furthermore, the integrated energy management unit completes the startup and shutdown control of the diesel generator set through the CAN interface, collects the data of the rotating speed, the oil pressure and the oil temperature of the set, collects the data of the output voltage and the current of the diesel generator set, and executes and protects the control of the generator.
Further, the electric driving modes of the diesel generator set and the power battery pack comprise:
the power supply driving mode of the power battery comprises the following steps: the diesel generator set is closed, and the power battery pack supplies power to the whole vehicle;
the driving mode of the diesel generator is as follows: the diesel generator set generates electricity to supply power for the whole vehicle;
the power battery and diesel generating set are in a hybrid power supply driving mode; the diesel generator and the power battery pack jointly supply power to the whole vehicle;
fourthly, the diesel generator set supplies power to the whole vehicle and charges the power battery pack at the same time;
fifthly, in the vehicle regenerative power generation braking mode, part of energy generated by the electric brake when the vehicle runs down the slope is charged into the power battery pack, and part of energy is charged into the super capacitor;
sixthly, charging the power battery pack and the super capacitor by the diesel generator set when the vehicle is static.
Further, the rectification conversion device is used for rectifying and converting the output of the generator set and then charging the power battery and supplying the power battery to direct-current electric equipment; the bidirectional conversion device provides direct current to alternating current conversion and/or alternating current to alternating current conversion to supply power to the alternating current equipment.
Preferably, the data information of the operating condition of the power battery pack includes: detecting voltage, temperature and insulating property of the single battery, balancing control and fault state; the data information of the working condition of the diesel generating set comprises the following steps: the rotating speed, oil mass, oil pressure and oil temperature of the diesel generator set, and the output voltage, current, frequency and fault state of the diesel generator set; the data information of the operating conditions of the rectifying and bidirectional conversion means comprises the input voltage, the output current and the temperature of said means.
The invention also provides an intelligent energy management method, which adopts different energy output modes according to the energy working conditions and comprises the following steps:
step one, when the low noise of the all-electric drive vehicle is required, a diesel generator set is closed, and only a power battery pack supplies power to the whole vehicle;
when the power load of the whole vehicle is in the efficient working area of the diesel generating set, the diesel generating set generates power to supply the power for the whole vehicle;
step three, when the vehicle is accelerated suddenly, a hybrid power supply driving mode that a power battery and a diesel generating set are used for supplying power to the whole vehicle at the same time is adopted;
when the electric quantity of the power battery is not full or the efficiency of the diesel generator set is adjusted, the diesel generator set is used for supplying power to the whole vehicle and charging the power battery and the super capacitor;
step five, when the vehicle brakes downhill, part of energy generated by the electric brake is charged into the power battery pack, and part of energy is charged into the super capacitor;
and step six, a diesel generator set is used for supplying power and simultaneously charging the power battery and the super capacitor when the vehicle is parked.
Further, the power battery pack and the super capacitor are provided with isolation modules, so that the power battery pack and the super capacitor are provided with the isolation modules which can be charged respectively; under the control of the integrated energy management unit, the power battery pack and the super capacitor can be connected in parallel to supply power to the whole vehicle so as to meet the power supply current requirement when the vehicle requiring large current is started or the vehicle is accelerated rapidly.
The energy management architecture adopts a mode of combining an energy management strategy based on a determined rule with an energy management strategy based on optimization, and the main idea is to lead the engine to work in a high-efficiency interval as much as possible by coordinating and shifting the working points of the engine so as to obtain higher fuel economy. The working area of the engine is usually defined by theoretical analysis and engineering experience, the working area of the engine is divided according to a static working efficiency curve chart of the engine, the working area of the engine is judged through control variables, and the working mode of a vehicle is selected, so that the vehicle runs in a high-efficiency area. The variables include, but are not limited to: power demand, vehicle speed, acceleration signal, battery SOC, etc. Typical operating modes of the full electric drive vehicle are divided into a power battery power supply driving mode, a diesel generator set power supply driving mode, a power battery and diesel generator set common power supply driving mode, a diesel generator set power supply + power battery charging driving mode, a vehicle downhill regeneration braking mode and a diesel generator set power supply + power battery charging vehicle stopping movement mode.
The invention constructs an energy intelligent analysis display platform, the platform carries out information display and man-machine interaction in a display or information push mode, and an interaction function block is mainly divided into a system management, a real-time power consumption curve, information detail, comprehensive guarantee and an intelligent analysis library.
Drawings
FIG. 1 is a schematic diagram illustrating the centralized control principle of an integrated energy management unit;
FIG. 2 is a diagram of energy management mode classification based on an all-electric vehicle platform;
FIG. 3 is a system management module;
FIG. 4 is a real-time energy consumption profile module;
FIG. 5 is an information detail module;
FIG. 6 is a comprehensive assurance module;
FIG. 7 is an intelligent analysis library module.
Detailed Description
The invention is described in further detail below with reference to the figures and the detailed description.
Fig. 1 is a schematic diagram of a centralized control principle of an integrated energy management unit, wherein the integrated energy management unit integrates control management functions of a power battery pack and a diesel generator set, directly realizes functions of data acquisition and the like of information of voltage, temperature and the like of a single body of the power battery pack through a CAN interface, and realizes functions of SOC calculation, insulation performance detection, balance control, protection control and the like; the functions of starting and stopping the diesel generator set, collecting the rotating speed, oil pressure and oil temperature of the set and the like are directly realized through the CAN interface, and the functions of voltage collection, current collection, protection control and the like of the set are realized.
FIG. 2 is an energy management mode classification diagram based on an all-electric drive vehicle platform, and different driving modes are adopted under different working conditions:
1. the power battery supplies power to drive the mode: the diesel generating set can be closed, the power battery pack supplies power to the whole vehicle, the power consumption of the driving and upper equipment is included, lower noise can be obtained under the working condition, and the concealment and the mobility of operation are facilitated.
2. Diesel generator drive mode: the diesel generating set generates electricity to supply electricity for the whole vehicle, and is applied to the condition that the electricity load of the whole vehicle is in the efficient working area of the diesel generating set.
3. The hybrid power supply driving mode of the power battery and the diesel generating set comprises the following steps: when the vehicle needs to accelerate rapidly in order to complete a specific task and/or the power supply of the diesel generating set and the power battery cannot be met, the working mode is adopted;
4. the power supply and power battery charging driving mode of the diesel generator set is as follows: when the power load of the whole vehicle is light and the electric quantity of the power battery is not full, the power battery pack is charged in order to ensure that the diesel generator set can operate efficiently, and the power battery pack and the super capacitor are charged while the efficiency of the diesel generator set is adjusted;
5. vehicle downhill regenerative braking mode: when the vehicle goes down the slope, the energy generated by the electric brake is fed back to the electric system. One part of the energy storage battery is charged into the power battery pack, and the other part of the energy storage battery is charged into the super capacitor, so that the power battery is prevented from being repeatedly charged and discharged to accelerate the aging of the power battery, and the service life of the power battery is ensured;
6. the stop motion mode of the vehicle charged by the diesel generator set and the power battery is as follows: when the SOC of the power battery is low to a certain degree and the vehicle does not need to move, the mode is adopted for charging the power battery and the super capacitor, and the efficiency of the diesel generating set can be adjusted by adjusting the number of the power battery sets and the charging current of each set, so that the diesel generating set is in a working state with better efficiency.
The super capacitor is an ultra-large capacity capacitor developed in recent years, and is equivalent to a battery with extremely low internal resistance and capable of instantly outputting large current, and the total energy of the stored electricity of the capacitor is different from that of a storage battery. The storage voltage of the super capacitor may not be very high. The super capacitor is usually used as a supplement or an auxiliary device of the storage battery, and provides an auxiliary charging means for the storage battery, or is output in parallel with the storage battery when a large instantaneous current output is required to provide a large driving force for electric equipment such as a motor. When the electric vehicle is used, the super capacitor and the power battery are used for parallel starting when climbing or low-temperature starting is carried out, so that the torque of the motor can be greatly improved, the driving force is increased, and the stable and reliable running of the vehicle is ensured.
Of course, the super capacitor has no obvious effect when the vehicle runs normally.
The energy intelligent analysis display platform performs information display and man-machine interaction in a display or information push mode, and the interaction function block is mainly divided into a system management module, a real-time power consumption curve module, an information detail module, a comprehensive guarantee module and an intelligent analysis library module.
FIG. 3 is a system management module that globally calculates, analyzes, and extracts key system information based on a platform view. The 'power flow' and the 'information flow' express the relation of energy flow, information flow and fault position of the system in an intuitive equipment connection relation; key system indexes such as endurance mileage, task flow times, hot belt machine time and the like which can be carried out by an analysis platform are predicted according to the residual electric quantity of the power battery, the residual oil quantity of the diesel engine and the energy consumption big data; the diesel generating set and the power battery pack are used as hybrid energy sources, intelligent cooperative supplement can be realized when single energy source is insufficient to provide peak power, and real-time power complementation of the diesel generating set and the power battery pack is analyzed and displayed.
FIG. 4 is a real-time energy consumption curve module, which is characterized by "real-time", analyzes and predicts the remaining battery capacity SOC and draws a curve by monitoring the basic information of the power battery voltage, current, temperature and the like in real time, displays the curve relations of time and voltage, time and capacity, time and current, capacity and voltage under different temperature environments, and stores the real-time battery data as big data; the power consumption of the load is expressed in real time by drawing a power supply real-time current curve based on time in real time, and meanwhile, the power consumption is used as basic data for analyzing the running state of the load.
FIG. 5 is a detail module of information that manages data including cell voltage, current, temperature, etc. parameters of the power battery pack; the classification of the detailed parameters such as the output voltage, the current, the temperature and the frequency of the diesel generator set and the transformation power supply is mainly used for distinguishing data of different levels by a system, and the data can be displayed and pushed at different priorities and time intervals according to requirements.
FIG. 6 is a comprehensive support module that uses user demand as a driver to perform comprehensive processing, analysis, and prompting of support-like transactions in the platform. The 'failure prediction and diagnosis' counts the 'failure' of the equipment, and the 'failure' is predicted by comprehensively analyzing the failure times, failure reasons and the current state; the maintenance is to carry out statistical analysis on the service time and the service state of the easily-damaged and easily-consumed parts of the system (such as a diesel generating set), give a prompt for the next maintenance time, comprehensively judge the performance of the battery pack, isolate and reject suspicious single bodies and give a replacement prompt.
FIG. 7 is an intelligent analysis material library module that combines mass data with a real-time database to achieve intelligent management and analysis of task flow, power consumption comparison, fault expert library, and hierarchical loads through a machine learning algorithm. The task flow general theory is used for counting task flows performed by a recent system and analyzing the power consumption of each flow; the core equipment power consumption comparison mainly carries out chart comparison display on the recent electricity consumption of the key load, and the load with an asymmetric state can be found in time; the fault expert database is mainly used for recording all fault data and fault reasons generated by the system into the database, and can be extracted as a material database during fault troubleshooting; and the load grading management is used for cutting off the electricity consumption of the load with low priority when the electricity quantity is insufficient so as to ensure the reliable operation of the load with high priority.
Claims (9)
1. An integrated intelligent energy management system based on a fully electrically driven vehicle-mounted platform comprises a power battery pack and a diesel generating set which are controlled by an integrated energy management unit; the method is characterized in that: the integrated energy management unit is connected with the power battery pack and the diesel generator set through a CAN bus interface; the integrated energy management unit can acquire data information of working conditions of the power battery pack, the diesel generator set, the rectification conversion device and the bidirectional conversion device in real time by distributing a plurality of sensors and detection modules of all systems of the whole vehicle; controlling the diesel generating set to start or stop, and controlling various charging or discharging operations of the power battery pack; and controlling the electric driving modes of different combinations of the diesel generator set and the power battery pack.
2. The integrated intelligent energy management system of claim 1, wherein: the integrated energy management unit further comprises an energy intelligent analysis and display platform, the energy intelligent analysis and display platform comprises a display device and/or an information pushing module, the energy intelligent analysis and display platform comprises a system management module, a real-time power consumption curve module, an information detail module, a comprehensive guarantee module and an intelligent analysis library module, and the system management module analyzes acquired system data information and processes and analyzes fault data information; counting the failure times and failure reasons of the equipment, and providing a maintenance prompt; the display device and/or the information pushing module is used for displaying and/or pushing the data information of the real-time working conditions obtained by the detection to a user, displaying the curve relation among time, voltage, current and energy capacity under different temperature environments, displaying the fault state, predicting and diagnosing the fault and maintaining the maintenance rule; and stores the fault data and the cause of the fault in a system database.
3. The integrated intelligent energy management system of claim 1, wherein: the integrated energy management unit is connected with the sensor through the CAN interface, detects the single voltage and the output current of the power battery pack and the temperature of each single battery of the power battery pack, performs data acquisition on the voltage, the current and the temperature data, and realizes SOC calculation, insulation performance detection, balance control and protection control.
4. The integrated intelligent energy management system of claim 1, wherein: the integrated energy management unit completes start-up and stop control of the diesel generating set through the CAN interface, collects data of the rotating speed, the oil pressure and the oil temperature of the set, collects data of output voltage and current of the diesel generating set, and executes and protects control on the generator.
5. The integrated intelligent energy management system of claim 1, wherein: the electric driving modes of the diesel generating set and the power battery pack comprise:
(1) the power battery supplies power to drive the mode: the diesel generator set is closed, and the power battery pack supplies power to the whole vehicle;
(2) diesel generator drive mode: the diesel generator set generates electricity to supply power for the whole vehicle;
(3) a power battery and diesel generating set hybrid power supply driving mode; the diesel generator and the power battery pack jointly supply power to the whole vehicle;
(4) the diesel generator set supplies power to the power of the whole vehicle and charges the power battery pack at the same time;
(5) in the regenerative power generation braking mode of the vehicle, part of energy generated by electric braking when the vehicle goes downhill is charged into the power battery pack, and part of energy is charged into the super capacitor;
(6) when the vehicle is static, the power battery pack and the super capacitor are charged by the diesel generator set.
6. The integrated intelligent energy management system of claim 5, wherein: the rectification conversion device is used for rectifying and converting the output of the generator set and then charging the power battery and supplying the power battery to direct-current electric equipment; the bidirectional conversion device provides direct current to alternating current conversion and/or alternating current to alternating current conversion to supply power to the alternating current equipment.
7. The integrated intelligent energy management system of any one of claims 3 or 4, wherein: the data information of the working condition of the power battery pack comprises the following data information: detecting voltage, temperature and insulating property of the single battery, balancing control and fault state; the data information of the working condition of the diesel generating set comprises the following steps: the rotating speed, oil mass, oil pressure and oil temperature of the diesel generator set, and the output voltage, current, frequency and fault state of the diesel generator set; the data information of the operating conditions of the rectifying and bidirectional conversion means comprises the input voltage, the output current and the temperature of said means.
8. An intelligent energy management method operating the energy management system of claim 1, characterized by: different energy output modes are adopted according to energy working conditions, and the method comprises the following steps:
step one, when the low noise of the all-electric drive vehicle is required, a diesel generator set is closed, and only a power battery pack supplies power to the whole vehicle;
when the power load of the whole vehicle is in the efficient working area of the diesel generating set, the diesel generating set generates power to supply the power for the whole vehicle;
step three, when the vehicle is accelerated suddenly, a hybrid power supply driving mode that a power battery and a diesel generating set are used for supplying power to the whole vehicle at the same time is adopted;
when the electric quantity of the power battery is not full or the efficiency of the diesel generator set is adjusted, the diesel generator set is used for supplying power to the whole vehicle and charging the power battery and the super capacitor;
step five, when the vehicle brakes downhill, part of energy generated by the electric brake is charged into the power battery pack, and part of energy is charged into the super capacitor;
and step six, a diesel generator set is used for supplying power and simultaneously charging the power battery and the super capacitor when the vehicle is parked.
9. The intelligent energy management method of claim 8, wherein: the power battery pack and the super capacitor are provided with isolation modules, so that the power battery pack and the super capacitor are provided with the isolation modules and can be charged respectively; under the control of the integrated energy management unit, the power battery pack and the super capacitor can be connected in parallel to supply power to the whole vehicle so as to meet the power supply current requirement when the vehicle requiring large current is started or the vehicle is accelerated rapidly.
Priority Applications (1)
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| US5896951A (en) * | 1996-11-07 | 1999-04-27 | Otis Elevator Company | Optimization of magnetizing current in linear induction motors |
| CN102874190A (en) * | 2012-10-17 | 2013-01-16 | 厦门汉纳森汽车电子有限公司 | Intelligent management system and method of automobile power supply |
| CN111118988A (en) * | 2020-01-13 | 2020-05-08 | 清研锐为(洛阳)轨道交通科技有限公司 | Double-source power supply rail engineering vehicle and power-on method thereof |
| CN111923852A (en) * | 2020-07-02 | 2020-11-13 | 东风柳州汽车有限公司 | Vehicle generator control method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5896951A (en) * | 1996-11-07 | 1999-04-27 | Otis Elevator Company | Optimization of magnetizing current in linear induction motors |
| CN102874190A (en) * | 2012-10-17 | 2013-01-16 | 厦门汉纳森汽车电子有限公司 | Intelligent management system and method of automobile power supply |
| CN111118988A (en) * | 2020-01-13 | 2020-05-08 | 清研锐为(洛阳)轨道交通科技有限公司 | Double-source power supply rail engineering vehicle and power-on method thereof |
| CN111923852A (en) * | 2020-07-02 | 2020-11-13 | 东风柳州汽车有限公司 | Vehicle generator control method and device |
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