CN107738591A - Batteries of electric automobile pre-heating system - Google Patents

Batteries of electric automobile pre-heating system Download PDF

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Publication number
CN107738591A
CN107738591A CN201711056587.8A CN201711056587A CN107738591A CN 107738591 A CN107738591 A CN 107738591A CN 201711056587 A CN201711056587 A CN 201711056587A CN 107738591 A CN107738591 A CN 107738591A
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CN
China
Prior art keywords
temperature detection
signal
electric automobile
lithium battery
value signal
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Pending
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CN201711056587.8A
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Chinese (zh)
Inventor
邱诗俊
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邱诗俊
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Priority to CN201711056587.8A priority Critical patent/CN107738591A/en
Publication of CN107738591A publication Critical patent/CN107738591A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L58/00Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L58/00Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/27Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L8/00Electric propulsion with power supply from forces of nature, e.g. sun or wind
    • B60L8/003Converting light into electric energy, e.g. by using photo-voltaic systems
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L8/00Electric propulsion with power supply from forces of nature, e.g. sun or wind
    • B60L8/006Converting flow of air into electric energy, e.g. by using wind turbines
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D9/00Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/10Combinations of wind motors with apparatus storing energy
    • F03D9/11Combinations of wind motors with apparatus storing energy storing electrical energy
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D9/00Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/30Wind motors specially adapted for installation in particular locations
    • F03D9/32Wind motors specially adapted for installation in particular locations on moving objects, e.g. vehicles
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/61Types of temperature control
    • H01M10/615Heating or keeping warm
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/62Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625Vehicles
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/63Control systems
    • H01M10/635Control systems based on ambient temperature
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction
    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/728Onshore wind turbines
    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30Systems combining energy storage with energy generation of non-fossil origin
    • 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
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/16Information or communication technologies improving the operation of electric vehicles
    • Y02T90/167Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
    • Y02T90/168
    • 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S30/00Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/12Remote or cooperative charging

Abstract

The invention discloses a kind of batteries of electric automobile pre-heating system, solve batteries of electric automobile and cause activity decrease because environment temperature is relatively low in winter, and then the problem of causing endurance to reduce, its drip irrigation device is that preheating device includes being used to detect the outer temperature of car and exports the external temperature detection unit of external temperature detection signal and be preset with lower reference value signal and be coupled to the control unit of external temperature detection unit;Control unit is according to the comparable situation between external temperature detection signal and lower reference value signal and the remote signal of remote control to control whether pre- thermal element starts;When external temperature detection signal is less than lower reference value signal and when remote control control car door unlocks, control unit controls pre- thermal element to start;The present invention can start pre- thermal element and first primary lithium battery preheated, ensure that primary lithium battery can work under suitable environment temperature before being initiated, if ambient temperature is less than lower limit benchmark.

Description

Batteries of electric automobile pre-heating system
Technical field
The present invention relates to electric automobile, more particularly to batteries of electric automobile pre-heating system.
Background technology
For the friend in the north, winter more than subzero 20 spends situation about being seemingly commonly encountered very much;But with some electronic vapour The car owner of car in winter can be just anxious;It can significantly shorten in the course continuation mileage of winter electric automobile, can not only influence us The plan of trip, or even some friends are in order to saving an electricity, is willing out warm wind, an almost temperature outside car in car.So Experience, allow people to regret selection originally simply.
As a rule, most of electric automobile, even electronic digital product on the market at present, what is used is all lithium Ion battery, that is, our lithium batteries for often saying;And common electric automobile lithium battery is mainly based on LiFePO4.
Lithium battery is also classified into positive and negative polarities as our common batteries, wherein all lithium ions are all saved to Positive pole, and negative pole is then by graphite(Carbon)Composition;Then include electrolyte and barrier film between positive and negative polarities;And lithium battery is put Electric process is exactly moving process of the lithium ion from negative pole to positive pole, and provides operation by the electric discharge of lithium battery for various equipment Required electric energy, also including our electric automobiles to be said;It should be noted that the positive pole of lithium battery is not by simple gold Belong to lithium composition, because elemental lithium is extremely unstable in atmosphere, therefore as a rule lithium battery anode is all by comprising elemental lithium Compound group into.
At low ambient temperatures, electric automobile continuation of the journey shorten be primarily due to extremely low temperature can to lithium compound activity produce Influence;And at present, most common compound is LiFePO4 in lithium battery, has additionally included LiMn2O4 etc.;And these compounds Activity at different temperatures, just determine the endurance of our electric automobile lithium battery at different temperatures;Such as most Common LiFePO4 just has fairly good high-temperature stability, therefore in the spring and summer of 20 to 40 degree there is best electric discharge to hold Amount, but as the reduction of temperature, activity are gradually reduced, discharge capacity also can gradually tail off;It is especially this in minus 20 degrees Under the relatively common low temperature environment in northeast, or even can be close to 50%;And most states electricity production headed by BYD domestic at present Electrical automobile is all using ferric phosphate lithium cell.
Charge-discharge electric power reduces under dynamic lithium battery cryogenic conditions, influences vehicle and starts and the problem of dynamic property, respectively The technological means that big producer mainly uses has two kinds:1st, the vehicle of pre-cooling under cold conditions as traditional vehicle is used as transmission The method of machine heating, manually boots vehicle in advance, battery heating module is started to battery in the case where meeting certain condition Heated;Because of battery at different ambient temperatures, the temperature that battery is reduced is unable to estimate, and causes unpredictable pre-cooling The time quantum of vehicle;2nd, start vehicle, battery itself is improved using heating module and battery charging and discharging in vehicle travel process Temperature, the method can cause battery capacity decay and energy recovery rate to reduce, influence the susceptibility of driver driving.
In the case of uncharged, all electricity both are from the lithium battery of in-car electric automobile, therefore shunk Electric quantity of lithium battery is mainly consumed in during this of battery thermal or heating in fact;And then cause overall electronic Automobile reduces in winter endurance.
The content of the invention
It is an object of the invention to provide a kind of batteries of electric automobile pre-heating system, can ensure before being initiated first to electronic The primary lithium battery of automobile is preheated, and is ensured that primary lithium battery can be operated under suitable environment temperature, is ensured electronic vapour The endurance of car.
The present invention above-mentioned technical purpose technical scheme is that:
A kind of batteries of electric automobile pre-heating system, including for providing the primary lithium battery of electric car electric energy and for electricity The door remote control locking of electrical automobile unlocks and exports the remote control of remote signal, in addition to for monitoring primary lithium battery Temperature conditions with heated preheating device, the standby lithium pond for providing preheating device electric energy and for standby lithium The charging device that battery is charged;
The preheating device includes being used to detect the outer temperature of car and exports the external temperature detection unit of external temperature detection signal And it is preset with lower reference value signal and is coupled to the control unit of external temperature detection unit;Described control unit is according to outer Comparable situation and remote signal between portion's temperature detection signal and lower reference value signal are to control whether pre- thermal element opens It is dynamic;When external temperature detection signal is less than lower reference value signal and when remote control control car door unlocks, the control is single Member controls pre- thermal element to start;
The charging device includes being arranged on electric automobile and being coupled to standby lithium pond to charge to standby lithium pond Wind power generation plant and/or device of solar generating.
Using such scheme, standby lithium pond is set, the endurance of primary lithium battery can be ensured not by any Influence, while standby lithium pond is arranged to the less battery of reserve of electricity, then its volume is also relative can be smaller, therefore to electric automobile Influenceing will not be very big, and standby lithium pond it is relative cost it is relatively low, can change at any time;Meanwhile charging device can be passed through Standby lithium pond is charged, ensures that standby lithium pond is in the abundant state of electricity, so as to be provided for preheating device Electric energy;By external temperature detection unit detecting to automobile external, if outside environment is in winter, temperature is very It is low, based on set lower reference value signal, when external temperature detection signal is less than lower reference value signal and remote control During device control car door unblock, control unit controls pre- thermal element to start so that primary lithium battery is entered before automobile starting Row preheating, ensure the endurance of primary lithium battery.
Preferably, the preheating device also includes being used to detect the temperature conditions near primary lithium battery and exports inside The internal temperature detection unit of temperature detection signal, described control unit are also preset with the insulation base more than lower reference value signal Calibration signal, if internal temperature detection signal is more than insulation benchmark value signal, described control unit control preheating element intermittence opens It is dynamic.
Using such scheme, the temperature near primary lithium battery is detected, once find primary lithium battery annex When temperature is higher than insulation base signal, corresponding preheating element intermittent start is just controlled, to keep the work of primary lithium battery Suitable temperature is maintained at as environment, is further ensured that the endurance of primary lithium battery.
Preferably, described control unit is also preset with the upper limit reference signal more than insulation benchmark value signal, if outside Temperature detection signal or internal temperature detection signal are more than upper limit benchmark value signal, and described control unit controls pre- thermal element to close Close.
Using such scheme, primary lithium battery can constantly produce heat due to electric automobile in the process of running, so as to Cause the environment temperature on primary lithium battery periphery to raise, once being more than upper limit benchmark value signal, just directly close pre- thermal element, keep away Exempt from the waste of energy in standby lithium pond, if while extraneous temperature be higher than upper limit benchmark value signal, illustrated extraneous temperature Through very high, and the environment temperature on primary lithium battery periphery is also of a relatively high, so avoiding the need for starting pre- thermal element to enter Row preheats, and avoids temperature too high and causes the situation of primary lithium battery damage to occur.
It is described preferably, if external temperature detection signal or internal temperature detection signal are more than upper limit benchmark value signal Control unit controls pre- thermal element to remain turned-off until internal temperature detection signal is less than lower reference value signal.
Such scheme is used, if the external temperature of automobile is more than the upper limit with any one in primary lithium battery environment temperature During benchmark, then illustrate now then to control pre- thermal element to close completely without pre- thermal element, and remain in closing shape State, avoid internal temperature from decreasing below upper limit benchmark more than pre- thermal element is started once more when being incubated benchmark, cause to preheat Element repeated priming and reduce service life, or even damage.
Preferably, the wind power generation plant includes some micro wind turbine generators, by some micro wind turbine generators It is divided into two groups and is respectively defined as middle net group and empennage group, the middle net group is arranged in the middle net of automobile, the empennage group It is arranged at the parking stall of automobile, the middle net group is electrically connected to standby lithium pond with empennage group.
Using such scheme, very big wind can be produced due to electric automobile in the process of moving, and windward and to receive Wind energy maximum place is exactly middle net position and the tail position of automobile, so during corresponding micro wind turbine generator is arranged on Position and tail position are netted, so as to define two groups, net group and empennage group in being respectively, as long as there is the state of wind, you can logical Cross micro wind turbine generator and carry out wind-power electricity generation, and store into corresponding standby lithium pond.
Preferably, the device of solar generating is arranged on roof, the device of solar generating and standby lithium Pond electrically connects.
Such scheme is used, as long as in the state of having the sun, you can carry out solar energy by solar cell module Generate electricity, and store into corresponding standby lithium pond.
Preferably, also including the control terminal for being coupled to charging device, the control terminal includes being used to monitor standby lithium The monitoring module of pond and primary electric quantity of lithium battery and for charging device to be switched into standby lithium pond or primary lithium battery Handover module;When monitoring module detects that the electricity in standby lithium pond is full of, the handover module starts with by charging device Switch to primary lithium battery from standby lithium pond and realize and primary lithium battery is charged.
Using such scheme, primary lithium battery and the electricity in standby lithium pond are monitored, ensure that charging device is filling In electric process, electric energy will not waste, and after electric energy is full of once standby lithium pond, is handed off and primary lithium battery is charged, So that the endurance of primary lithium battery is improved significantly.
Preferably, the monitoring module includes electricity benchmark value signal, when monitoring module detects standby lithium pond When electricity is less than electricity benchmark value signal, the handover module starts so that charging device is switched into standby lithium from primary lithium battery Battery, which is realized, carries out charging to standby lithium pond until the electricity in standby lithium pond is full of.
Such scheme is used, if during the low battery in standby lithium pond, charging device restarts to standby lithium Pond is charged, and ensures that pre- thermal element can normally start.
In summary, the invention has the advantages that:Before electric automobile startup, if ambient temperature is less than lower limit Benchmark, then start pre- thermal element first to primary lithium battery preheat, ensure primary lithium battery can under suitable environment temperature work Make.
Brief description of the drawings
Fig. 1 is the system block diagram of batteries of electric automobile pre-heating system;
Fig. 2 is the system block diagram of preheating device;
Fig. 3 is the system block diagram of charging device;
Fig. 4 is the system block diagram of control terminal.
In figure:1st, remote control;2nd, primary lithium battery;3rd, preheating device;31st, pre- thermal element;32nd, external temperature detection is single Member;33rd, internal temperature detection unit;34th, control unit;341st, preheating mode;342nd, holding mode;343rd, non-preheating mode; 4th, standby lithium pond;5th, charging device;51st, wind power generation plant;511st, micro wind turbine generator;512nd, wind wheel;513rd, steel tower; 52nd, device of solar generating;521st, solar cell module;522nd, controller;523rd, inverter;6th, control terminal;61st, mould is monitored Block;62nd, handover module.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
The temperature of battery can be returned to optimum operating temperature by the lithium battery preheating of electric automobile, improve electronic vapour The activity of the lithium battery interior element of car, therefore electric automobile manufacturer can in the car take some measures and " be protected for lithium battery Temperature ", and this process needs also exist for consuming electricity;And electric automobile, in the case of uncharged, all electricity both are from In the lithium battery of in-car, therefore the electric quantity of lithium battery to be shunk is mainly consumed in this of battery thermal or heating in fact During individual, and then when appear in winter, the endurance of electric automobile substantially reduces, in order to ensure winter electric automobile Endurance, so devising a kind of batteries of electric automobile pre-heating system, the lithium battery of electric automobile can be preheated, And can ensures the endurance of electric automobile simultaneously.
As shown in figure 1, batteries of electric automobile pre-heating system includes being used for locking the door remote control of electric automobile or unblock And export the remote control 1 of remote signal, the primary lithium battery 2 for providing electric car electric energy, for monitoring primary lithium electricity The temperature conditions in pond 2 with heated preheating device 3, the standby lithium pond 4 for providing the electric energy of preheating device 3 and be used for The charging device 5 to be charged to standby lithium pond 4;The temperature conditions of primary lithium battery 2 is supervised by preheating device 3 Control, once and temperature it is too low, then control preheating device 3 to preheat primary lithium battery 2, ensure primary lithium battery 2 Working environment, while preheating device 3 is powered by standby lithium pond 4, is avoided the need for primary lithium battery 2 and is powered and cause to continue a journey The situation that ability reduces occurs.
Remote control 1 is automobile remote controllers, has 3 buttons on automobile remote controllers, is that car locking key, boot are opened respectively Close, unlocking key;Car locking key, that is, click car and just automobile is locked;Unlocking key, that is, click car and allow for unlocking automobiles, It is convenient for people to enter;Boot on & off switch, as its name suggests, click back-up case lock and be switched on, but opened cannot after boot With key-off, if boot needs closing to lock after opening, case cover is directly just covered just directly locking;When pressing When corresponding to the button on remote control 1, then remote signal corresponding to output, that is, press car locking key and then export car locking remote signal, Press unlocking key and then export unlocking remote signal, press boot switch and then export boot remote signal.
Primary lithium battery 2 and standby lithium pond 4 preferably use ferric phosphate lithium cell, and ferric phosphate lithium cell refers to use phosphorus Lithium ion battery of the sour iron lithium as positive electrode;The positive electrode of lithium ion battery mainly has cobalt acid lithium, LiMn2O4, nickel acid Lithium, ternary material, LiFePO4 etc.;Wherein, cobalt acid lithium is the positive electrode that current most lithium ion batteries use;Set Standby lithium pond 4, the endurance of primary lithium battery 2 can be ensured not by any influence, while standby lithium pond 4 is set For the less battery of reserve of electricity, then its volume is also relative can be smaller, therefore the influence to electric automobile will not be very big, and standby lithium The relative cost in pond 4 is relatively low, can change at any time;Meanwhile standby lithium pond 4 can be charged by charging device 5, Ensure standby lithium pond 4 in the abundant state of electricity, so as to provide electric energy for preheating device 3.
As shown in Fig. 2 preheating device 3 includes pre- thermal element 31, for detecting temperature outside car and exporting external temperature detection The external temperature detection unit 32 of signal, for detect the temperature conditions near primary lithium battery 2 and export internal temperature detection The internal temperature detection unit 33 of signal and it is respectively coupled to external temperature detection unit 32 and internal temperature detection unit 33 To control the control unit 34 that pre- thermal element 31 opens and closes.
Pre- thermal element 31 can be silica gel heating sheet, and if be provided with dry plate, be uniformly arranged on the four of primary lithium battery 2 Week, the convenient environment temperature to the primary periphery of lithium battery 2 are adjusted.
External temperature detection unit 32 and internal temperature detection unit 33 are temperature sensor, and model is preferably PT100, PT100 temperature sensors are a kind of instrument that temperature variable is converted to transmittable normalization output signal;It is mainly used in work The measurement and control of industry process temperature parameter;The transmitter of belt sensor is generally made up of two parts:Sensor and signal conversion Device;If sensor main thermoelectricity occasionally thermal resistance;Signal adapter is mainly made up of measuring unit, signal transacting and converting unit (Because industrial heat resistance and thermocouple indexing table are standardization, therefore it is also referred to as when signal adapter is as stand-alone product Transmitter), some transmitters add display unit, and some also have fieldbus function.
Control unit 34 is preset with lower reference value signal, insulation reference signal and upper limit benchmark value signal;Wherein, under Limit benchmark value signal is less than insulation benchmark value signal and is less than upper limit benchmark value signal.
Preheating mode 341:Control unit 34 is according to the comparison between external temperature detection signal and lower reference value signal Situation and remote signal realize the function of preheating to control whether pre- thermal element 31 starts;When external temperature detection signal is small When lower reference value signal and when remote control 1 controls car door unblock, control unit 34 controls pre- thermal element 31 to start;
Holding mode 342:Control unit 34 is according to the comparable situation between external temperature detection signal and insulation benchmark value signal With control pre- thermal element 31 whether intermittent start, realize at interval of starting pre- thermal element 31 after the default time, ensureing The operating ambient temperature of primary lithium battery 2;If internal temperature detection signal is more than insulation benchmark value signal, control unit 34 controls The pre- intermittent start of thermal element 31.
Non- preheating mode 343:Control unit 34 is according to external temperature detection signal, internal temperature detection signal and the upper limit Comparable situation between benchmark value signal is to control whether pre- thermal element 31 closes;If external temperature detection signal or internal temperature Detection signal is more than upper limit benchmark value signal, and control unit 34 controls pre- thermal element 31 to remain turned-off until internal temperature detection letter Number it is less than lower reference value signal;If the external temperature of automobile is more than upper with any one in the primary environment temperature of lithium battery 2 When limiting benchmark, then illustrate now then to control pre- thermal element 31 to close completely without pre- thermal element 31, and remain in pass Closed state, avoid internal temperature from decreasing below upper limit benchmark more than pre- thermal element 31 is started once more when being incubated benchmark, lead Cause the pre- repeated priming of thermal element 31 and reduce service life, or even damage.
As shown in figure 3, charging device 5 includes being arranged on electric automobile and being coupled to standby lithium pond 4 with to standby lithium The wind power generation plant 51 and/or device of solar generating 52 that battery 4 is charged;It can be carried out using wind power generation plant 51 Generate electricity, can also be generated electricity using device of solar generating 52, wind power generation plant 51 and solar power generation can also be used Both modes of combination of device 52 are generated electricity.
Device of solar generating 52 is arranged on roof, and device of solar generating 52 electrically connects with standby lithium pond 4;The sun It is the device that solar energy is directly translated into electric energy using battery component that can generate electricity;Device of solar generating 52 mainly includes:Too Positive energy battery component 521(Array), controller 522, the composition such as inverter 523.
The major function of controller 522 is to make solar power system all the time near the maximum power point to generate electricity, with Obtain peak efficiency;And charge control generally use pulse width modulating technology is PWM control modes, whole system is set to transport all the time Row is in maximum power point Pm near zones;Control of discharge is primarily referred to as when battery short of electricity, the system failure, such as battery open circuit or reversed When roof-cut resistence;Hitachi, Ltd, which have developed, at present can track check point Pm, and can tracking sun moving parameter " to day Certain herbaceous plants with big flowers " formula controller 522, the efficiency of securing battery cell packs is improved 50% or so.
Inverter 523 presses energisation mode, can be divided into auto-excitation type vibration inversion and separated exciting vibration inversion;Major function be by The DC inverter of battery is into alternating current;By full-bridge circuit, typically using SPWM processors through ovennodulation, filtering, boosting Deng, obtain with the sinusoidal ac of the matching such as lighting load frequency f, rated voltage UN for load use.
The anti-reverse charging diode of solar photovoltaic generation system is also known as blocking diode, and it is acted in solar module It is to avoid, because solar cell array when not generating electricity or short trouble occur at overcast and rainy and night, beating battery pack and passing through solar cell Square formation is discharged;Anti-reverse charging diode is connected in solar cell array circuit, plays one-way conduction;Therefore it must assure that back There is maximum current in road, and to bear the impact of inverse peak voltage;Suitable commutation diode typically can be selected as anti- Reversely charging diode;Any diode can not had to if one block of plate, because controller 522 natively can be anti-recoil;Plank is connected If, it is necessary to install bypass diode, if an anti-recoil diode will be filled if parallel connection, prevent plank from directly rushing electricity; Anti-reverse charging diode is protective effect, does not interfere with generating effect.
Wind power generation plant 51 includes some micro wind turbine generators 511, and some micro wind turbine generators 511 are divided into two Group and middle net group and empennage group are respectively defined as, middle net group is arranged in the middle net of automobile, and empennage group is arranged at the car of automobile At position, middle net group is electrically connected to standby lithium pond 4 with empennage group.
Wind-power electricity generation is exactly that the kinetic energy kept watch is transformed into mechanical kinetic energy, then mechanical energy is converted into electric power kinetic energy;Wind-force is sent out The principle of electricity, it is to drive air vane rotation using wind-force, then lifts the speed of rotation through booster engine, promotes generator Generate electricity;Device required for wind-power electricity generation, referred to as wind-driven generator, this wind-driven generator, it can generally divide the (bag of wind wheel 512 Include tail vane), generator and the three parts of steel tower 513;Wind wheel 512 is the important component that the kinetic energy kept watch is changed into mechanical energy, it by The impeller composition of two (or more only) propeller shapes;Aerodynamic force 512 turns of wind wheel of driving is produced when wind is to paddle, on blade It is dynamic;Because the rotating ratio of wind wheel 512 is relatively low, and the size and Orientation of wind-force often varies, and this determines rotary speed unstabilization again;Institute With before generator is driven, it is necessary to add a speed-changing gear box for rotating speed being brought up to generator rated speed, then add One speed adjusting gear makes rotating speed keep stable, is then connected to again on generator, to keep wind wheel 512 to be directed at wind direction all the time to obtain Maximum power is obtained, the tail vane of a similar wind vane need to be also filled behind wind wheel 512;Steel tower 513 be supporting wind wheel 512, The framework of tail vane and generator;Steel tower 513 is fixed on the front end of middle net or is fixed on tail position.
As shown in figure 4, batteries of electric automobile pre-heating system also includes the control terminal 6 for being coupled to charging device 5, control terminal 6 Including for monitoring the monitoring module 61 in standby lithium pond 4 and the primary electricity of lithium battery 2 and for charging device 5 to be switched to Standby lithium pond 4 or the handover module 62 of primary lithium battery 2;When monitoring module 61 detects that the electricity in standby lithium pond 4 is full of When, handover module 62 starts to be realized to primary lithium battery 2 so that charging device 5 is switched into primary lithium battery 2 from standby lithium pond 4 Charged;Monitoring module 61 includes electricity benchmark value signal, when monitoring module 61 detects that the electricity in standby lithium pond 4 is less than During electricity benchmark value signal, handover module 62 starts real so that charging device 5 is switched into standby lithium pond 4 from primary lithium battery 2 Charging is now carried out to standby lithium pond 4 until the electricity in standby lithium pond 4 is full of.
Specific work process is as follows:
By external temperature detection unit 32 and internal temperature detection unit 33 to automobile external and the environment temperature of inside Detected so that primary lithium battery 2 is preheated before automobile starting, ensures the endurance of primary lithium battery 2;And According to the situation of reality, pre- thermal element 31 enters different mode of operations;If the temperature that external temperature detection unit 32 is detected It is very low, it is when external temperature detection signal is less than lower reference value signal and distant based on set lower reference value signal When controlling the control car door unblock of device 1, control unit 34 controls pre- thermal element 31 to start, into preheating mode 341;In electric automobile In running, if internal temperature detection signal detected near primary lithium battery 2 is more than insulation benchmark value signal, enter Enter holding mode 342;If external temperature detection signal or internal temperature detection signal are more than upper limit benchmark value signal, control unit The 34 pre- thermal elements 31 of control are remained turned-off until internal temperature detection signal is less than lower reference value signal, then into non-pre- hot-die Formula 343341.
This specific embodiment is only explanation of the invention, and it is not limitation of the present invention, people in the art Member can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but as long as at this All protected in the right of invention by Patent Law.
Various illustrative logical blocks, module, circuit, element and/or the component described with reference to embodiments disclosed herein is equal Can be by general processor, digital signal processor (DSP), application specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic components, discrete gate or transistor logic, discrete hardware components or it is designed to perform this paper Any combinations of described function are practiced or carried out.General processor can be microprocessor, but another selection is the place It can be any conventional processor, controller 522, microcontroller 522 or state machine to manage device.Processor can also be embodied as calculating The combination of component, such as the combination of DSP and microprocessor, the combination of multi-microprocessor, one or more microprocessors With DSP core combine or any other this configuration.

Claims (8)

1. a kind of batteries of electric automobile pre-heating system, including for providing the primary lithium battery (2) of electric car electric energy and using Lock or unlock in the door remote control to electric automobile and export the remote control (1) of remote signal, it is characterized in that:Also include using In the temperature conditions for monitoring primary lithium battery (2) with heated preheating device (3), for providing preheating device (3) electric energy Standby lithium pond (4) and the charging device (5) for being charged to standby lithium pond (4);
The preheating device (3) includes pre- thermal element (31), for detecting temperature outside car and exporting external temperature detection signal External temperature detection unit (32) and it is preset with lower reference value signal and is coupled to the control of external temperature detection unit (32) Unit (34) processed;Described control unit (34) is according to the comparable situation between external temperature detection signal and lower reference value signal And remote signal is to control whether pre- thermal element (31) starts;When external temperature detection signal is less than lower reference value signal And during remote control (1) control car door unblock, described control unit (34) controls pre- thermal element (31) to start;
The charging device (5) includes being arranged on electric automobile and being coupled to standby lithium pond (4) with to standby lithium pond (4) The wind power generation plant (51) and/or device of solar generating (52) to be charged.
2. batteries of electric automobile pre-heating system according to claim 1, it is characterized in that:The preheating device (3) also includes For detecting the neighbouring temperature conditions of primary lithium battery (2) and exporting the internal temperature detection unit of internal temperature detection signal (33), described control unit (34) is also preset with the insulation reference signal more than lower reference value signal, if internal temperature detects Signal is more than insulation benchmark value signal, and described control unit (34) controls pre- thermal element (31) intermittent start.
3. batteries of electric automobile pre-heating system according to claim 2, it is characterized in that:Described control unit (34) is also default There is the upper limit reference signal more than insulation benchmark value signal, if external temperature detection signal or internal temperature detection signal are more than upper Benchmark value signal is limited, described control unit (34) controls pre- thermal element (31) to close.
4. batteries of electric automobile pre-heating system according to claim 3, it is characterized in that:If external temperature detection signal is interior Portion's temperature detection signal is more than upper limit benchmark value signal, described control unit (34) control pre- thermal element (31) to remain turned-off until Internal temperature detection signal is less than lower reference value signal.
5. batteries of electric automobile pre-heating system according to claim 1, it is characterized in that:Wind power generation plant (51) bag Some micro wind turbine generators (511) are included, some micro wind turbine generators (511) are divided into two groups and are respectively defined as middle net group And empennage group, the middle net group are arranged in the middle net of automobile, the empennage group is arranged at the parking stall of automobile, the middle net Group is electrically connected to standby lithium pond (4) with empennage group.
6. batteries of electric automobile pre-heating system according to claim 1, it is characterized in that:The device of solar generating (52) It is arranged on roof, the device of solar generating (52) electrically connects with standby lithium pond (4).
7. batteries of electric automobile pre-heating system according to claim 1, it is characterized in that:Also include being coupled to charging device (5) control terminal (6), the control terminal (6) include being used to monitor standby lithium pond (4) and the prison of primary lithium battery (2) electricity Control module (61) and the handover module for charging device (5) to be switched to standby lithium pond (4) or primary lithium battery (2) (62);When monitoring module (61) detects that the electricity in standby lithium pond (4) is full of, the handover module (62) starts that will fill Electric installation (5) switches to primary lithium battery (2) and realized from standby lithium pond (4) to charge to primary lithium battery (2).
8. batteries of electric automobile pre-heating system according to claim 7, it is characterized in that:The monitoring module (61) includes electricity Benchmark value signal is measured, it is described when monitoring module (61) detects that the electricity in standby lithium pond (4) is less than electricity benchmark value signal Handover module (62) starts to be realized to standby lithium so that charging device (5) is switched into standby lithium pond (4) from primary lithium battery (2) Battery (4) carries out charging until the electricity in standby lithium pond (4) is full of.
CN201711056587.8A 2017-11-01 2017-11-01 Batteries of electric automobile pre-heating system Pending CN107738591A (en)

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