CN108663061A - A kind of electric vehicle mileage Prediction System and its predictor method - Google Patents
A kind of electric vehicle mileage Prediction System and its predictor method Download PDFInfo
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- CN108663061A CN108663061A CN201810241162.2A CN201810241162A CN108663061A CN 108663061 A CN108663061 A CN 108663061A CN 201810241162 A CN201810241162 A CN 201810241162A CN 108663061 A CN108663061 A CN 108663061A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/3453—Special cost functions, i.e. other than distance or default speed limit of road segments
- G01C21/3469—Fuel consumption; Energy use; Emission aspects
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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
- 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
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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
- B60L2260/00—Operating Modes
- B60L2260/40—Control modes
- B60L2260/50—Control modes by future state prediction
- B60L2260/52—Control modes by future state prediction drive range estimation, e.g. of estimation of available travel distance
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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
- 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
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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
- 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
- Y02T90/167—Systems 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]
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS 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
- Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
- Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
- Y04S30/12—Remote or cooperative charging
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Abstract
A kind of electric vehicle mileage Prediction System of present invention offer and its predictor method, Prediction System include that electric vehicle SOC estimation modules, GPS bus locations and navigation module and mileage estimate module.Electric vehicle SOC estimation modules are made of host computer and sensor；GPS bus locations and navigation module, to position automobile position, and go out charging pile position using satellite GPS system by map search, and vehicle running route is cooked up using navigation system；Can it be to calculate electric vehicle by predictive algorithm reach nearest electric automobile charging pile with current SOC that mileage estimates module, and mileage predictor method includes that distance estimates step and battery SOC estimates step.The present invention estimates step by distance and battery SOC estimates step, and can realization reach the prediction apart from nearest charging pile to electric vehicle remaining capacity, prevent from making electric vehicle cast anchor halfway because of not enough power supply.
Description
Technical field
The invention belongs to electric vehicle fields, and in particular to a kind of electric vehicle mileage Prediction System and its predictor method.
Background technology
As electric vehicle is universal, the infrastructure such as charging pile are becoming better and approaching perfection day by day, and electric vehicle also can be as conventional fuel oil vapour
Vehicle is the same, is run on various complicated roads.When electric automobile during traveling is in unknown stroke or high speed, due to travelling unknown
When on journey or in high speed, charging pile Location-Unknown, and some electric vehicles need to use specific charging pile, electric vehicle is in road
Parking is extremely unsafe suddenly for road.Therefore, can reach nearest charging pile according to current residual electricity be of crucial importance
's.Rely solely on the development that battery SOC estimation is difficult electric vehicle after meeting.Remaining capacity only can estimate electric vehicle energy
Distance how long is travelled, we are unknown for that can reach nearest charging pile, and electric vehicle dump energy whether can
The problem of reaching nearest charging pile still belongs to blank.Since current electric vehicle is in developing stage, only mould is estimated equipped with battery SOC
Block and navigation module, but them is not made to fully utilize, electric vehicle mileage is estimated and is inaccurate.
Invention content
To solve the above problems, the present invention provides a kind of electric vehicle mileage Prediction System and its predictor method, by away from
From step is estimated and battery SOC estimates step, can realization reach apart from nearest charging pile electric vehicle remaining capacity
Prediction, prevents from making electric vehicle cast anchor halfway because of not enough power supply.
To achieve the goals above, the technical solution adopted by the present invention is：
A kind of electric vehicle mileage Prediction System, it is characterised in that：The Prediction System include electric vehicle SOC estimation modules,
GPS bus locations and navigation module and mileage estimate module, and the electric vehicle SOC estimation modules are by host computer and sensor
Composition；The GPS bus locations and navigation module, to position automobile position, and are gone out using satellite GPS system by map search
Vehicle running route is cooked up in charging pile position using navigation system；The mileage, which estimates module, to be calculated by predictive algorithm
Can electric vehicle reach nearest electric automobile charging pile with current SOC.
It is pre- by the mileage predictor method the present invention also provides a kind of predictor method of electric vehicle mileage Prediction System
Can the remaining capacity of electric vehicle be surveyed reach apart from nearest charging pile, and mileage predictor method includes that distance estimates step and electricity
Pond SOC estimates step, it is characterised in that：Mileage estimates step：
Step 1: by calculating real-time range apart from predictor method, electric vehicle is carried out by GPS satellite positioning system real-time
Positioning is cooked up electric vehicle to the route of charging pile or via setting path arrival charging pile by navigation system, is obtained
Real-time range S of the electric vehicle to charging pile0, and via data transmitter by real-time range S0It is sent to mileage and estimates module；
Step 2: battery SOC estimates step is：
A1. the cell output current I of electric vehicle is obtained by current sensor；
A2. battery capacity Q and efficiency for charge-discharge η is obtained, and the big of battery SOC is calculated according to battery capacity and efficiency for charge-discharge
It is small：
A3. battery SOC obtained by calculating is sent to mileage and estimates module；
It is estimated Step 3: estimating module using mileage to carry out the mileage of electric vehicle：
B1. vehicle wheel rotational speed V is obtained by wheel speed sensor；
B2. it calculates with current electric current I continuous discharges to minimum state-of-charge SOCLThe time of Shi Suoneng electric discharges
B3. automobile predicted travel distance is calculated by vehicle wheel rotational speed V and discharge time T：
Can b4. judge automobile arrive safe and sound charging pile, work as S>S0When, electric vehicle can reach charging pile；Work as S<S0When, sentence
Charging pile cannot be reached for electric vehicle by breaking, and alarm system sends out alarm.
Further, SOC estimation modules are connected to battery supply, are used for the measuring and calculating of battery SOC predictor method, described upper
Machine is arithmetic unit, and the arithmetic unit in SOC estimation modules is also connected with information input interface and information output interface.
Further, the output end of current sensor is connected to the arithmetic unit by described information input interface, and SOC estimates
SOC value is also delivered to mileage by information output interface and estimates module by meter module.
Further, mileage on electric vehicle is set and estimates module, is used for the measuring and calculating of mileage method of estimation, mileage estimates mould
Block includes wheel speed sensor, mileage Master control chip and alarm system.
Further, the output end of the wheel speed sensor is connected to the Master control chip, and Master control chip is also
Connect data transmitter and information output interface, the Master control chip carry out in step 3 the calculating of mileage and mileage in real time
The comparison of mileage, and comparison result is fed back into alarm system.
Further, minimum state-of-charge SOC is also set up on the Master control chipLData input port inputs different
Minimum charged numerical value.
Further, estimate can also be using neural network come to electric vehicle row for the mileage of the electric vehicle in step 3
Mileage number is sailed to be estimated.
Beneficial effects of the present invention are：
1, a kind of electric vehicle mileage Prediction System of the invention and its predictor method, step and battery SOC are estimated by distance
Step is estimated, can realization reach the prediction apart from nearest charging pile to electric vehicle remaining capacity, prevent because of electricity not
Electric vehicle is set to cast anchor halfway enough；
2, the battery SOC of a kind of electric vehicle mileage Prediction System of the present invention and its predictor method estimates step and uses the ampere time
Integration method, convenient for estimating the SOC value of battery under different road conditions, make battery SOC estimates the variation that can be exported with real-time current
And change, exclude the influence of the extraneous factors such as road conditions；
3, the mileage of a kind of electric vehicle mileage Prediction System of the present invention and its predictor method estimates step and passes through the real-time of wheel
Rotating speed and the SOC value of battery estimated calculate automobile predicted travel distance；
4, electric discharge cut-off SOC is introduced during automobile predicted travel distance of the inventionL, the calculating of remaining capacity is more accurate,
The battery supply that electric vehicle can also be protected simultaneously, extends its service life.
Description of the drawings
Fig. 1 is the system operation schematic diagram of the present invention；
Fig. 2 is the system operation schematic diagram of the present invention.
Wherein, in figure respectively marked as：1, electricity estimation module；2, SOC value of battery computing module；3, current sensor；4、
Clock；5, battery efficiency and capacity；6, SOC initial values SOC0；7, electric vehicle and charging pile spacing module；8, GPS automobiles
Position fixing and navigation system；9, charging pile position；10, electric vehicle is to charging pile route；11, electric vehicle current location；12, electric
Electrical automobile is to charging pile distance；13, electric vehicle mileage estimation module；14, SOC value of battery；15, SOC value of battery inputs；16、
Cell output current；17, battery estimated discharge time；18, electric vehicle predicted travel distance；19, wheel speed sensor；
20, can automobile reach charging pile；21, satellite GPS system；22, electric automobile charging pile；23, electric vehicle.
Specific implementation mode
In order to which those skilled in the art better understood when technical solution provided by the present invention, with reference to specific
Embodiment income illustrates.
This case can be illustrated by embodiment below and is fully understood so that the personage for being familiar with this skill can be according to this
It completes, the embodiment of right this case not can be limited its implementation form by following.
A kind of electric vehicle mileage Prediction System, Prediction System include electric vehicle SOC estimation modules, GPS bus locations
Module is estimated with navigation module and mileage, electric vehicle SOC estimation modules are made of host computer and current sensor 3；GPS vapour
Vehicle is positioned with navigation module using satellite GPS system 21 to position 23 position of electric vehicle, and goes out electronic vapour by map search
22 position of vehicle charging pile, vehicle running route is cooked up using navigation system；Mileage, which estimates module, to be calculated by predictive algorithm
Can electric vehicle reach nearest electric automobile charging pile with current SOC.
A kind of predictor method of electric vehicle mileage Prediction System predicts the residue of electric vehicle by mileage predictor method
Can electricity reach apart from nearest charging pile, and mileage predictor method includes that distance estimates step and battery SOC estimates step, tool
Body step is：
Step 1: by calculating real-time range apart from predictor method, electric vehicle is carried out by GPS satellite positioning system real-time
Positioning is cooked up electric vehicle to the route of charging pile or via setting path arrival charging pile by navigation system, is obtained
Real-time range S of the electric vehicle to charging pile0, and via data transmitter by real-time range S0It is sent to mileage and estimates module；
Step 2: battery SOC estimates step is：
A1. the cell output current I of electric vehicle is obtained by current sensor；
A2. battery capacity Q and efficiency for charge-discharge η is obtained, and the big of battery SOC is calculated according to battery capacity and efficiency for charge-discharge
It is small：
A3. battery SOC obtained by calculating is sent to mileage and estimates module；
It is estimated Step 3: estimating module using mileage to carry out the mileage of electric vehicle：
B1. vehicle wheel rotational speed V is obtained by wheel speed sensor；
B2. it calculates with current electric current I continuous discharges to minimum state-of-charge SOCLThe time of Shi Suoneng electric discharges
B3. automobile predicted travel distance is calculated by vehicle wheel rotational speed V and discharge time T：
Can b4. judge automobile arrive safe and sound charging pile, work as S>S0When, electric vehicle can reach charging pile；Work as S<S0When, sentence
Charging pile cannot be reached for electric vehicle by breaking, and alarm system sends out alarm.
SOC estimation modules are connected to battery supply, are used for the measuring and calculating of battery SOC predictor method, and host computer is arithmetic unit, fortune
It calculates device and SOC discreet values is calculated with ampere Time Method by the current value of input, the arithmetic unit in SOC estimation modules also connects
Connect information input interface and information output interface；The output end of current sensor is connected to described by described information input interface
SOC value is also delivered to mileage by information output interface and estimates module by arithmetic unit, SOC estimation modules.
Mileage is set on electric vehicle and estimates module, is used for the measuring and calculating of mileage method of estimation, it includes vehicle that mileage, which estimates module,
Wheel speed sensor, mileage Master control chip and alarm system, alarm system for automobile predicted travel distance be less than in real time away from
From when reminding effect, prevent electric vehicle in traveling casting anchor on the way.
The output end of wheel speed sensor is connected to the Master control chip, and Master control chip is also connected with data transmitter
With information output interface, the Master control chip carries out the comparison of the calculating and mileage and real-time mileage of mileage in step 3, and
Comparison result is fed back into alarm system.
Minimum state-of-charge SOC is also set up on Master control chipLData input port, input different electric discharge cut-off numbers
Value, keeps the calculating of remaining capacity more accurate, while can also protect the battery supply of electric vehicle, extends its service life.
The mileage of electric vehicle in step 3 is estimated can also be using neural network algorithm come in electric automobile during traveling
Number of passes is estimated, and builds electric vehicle mileage prediction model first, and electric vehicle is acquired on the basis of the model and reaches electricity
Instantaneous electric current and battery dump energy during 22 position of electrical automobile charging pile, sampling are adopted respectively using multiple electric vehicles
Sample, cooperation satellite GPS system calculate the transient current and momentary cell remaining capacity of fixed position, are denoted as respectivelyWith
WithCorresponding average vehicle mileage travelled number isMomentary cell residual electric quantity when if electric vehicle is moved to certain point
For SOCt, by SOCtThe average vehicle mileage travelled number S estimated in input neural network modelt, then compare electric current, if wink
When electric currentThen electric vehicle normally travel, if transient currentThen it is connected with the electric vehicle mileage prediction model
Alarm sends out alarm, reminds and slows down or replace road conditions.
Fig. 1 is the system operation schematic diagram of the present invention, including satellite GPS system 21, electric automobile charging pile 22, electronic vapour
Vehicle 23.When this system is started to work, 23 current location of electric vehicle is sent to electric vehicle 23 and navigated by satellite GPS system 21
In system, while using the position of the nearest electric automobile charging pile of navigation system search 22, calculating electric vehicle 23 and charging pile
Distance；23 own control systems of electric vehicle calculate remaining battery SOC value；Electric vehicle 23 is calculated to work as with this this system
Can preceding SOC value reach nearest electric automobile charging pile 102.
Fig. 2 is the system operation schematic diagram of the present invention, and electricity estimation module 1 is with electric vehicle and charging pile spacing module 7
It works at the same time.First, current sensor 3, clock 4, SOC initial values SOC06, the modules such as battery efficiency and capacity 5 detect
Numerical value be sent to SOC value of battery computing module calculate electric vehicle remaining capacity.Meanwhile electric vehicle and charging pile are apart from mould
Block 7 also begins to work, and GPS bus locations and navigation system 8 pass through navigation by satellite positioning electric vehicle current location 11
Systematic search determines that charging pile position 9, current car position 11 and charging pile position 9 send electric vehicle and charging pile position
To electric vehicle to charging pile distance 12, selected route is sent to electric vehicle to filling by electric vehicle to charging pile route 10
Electric pilespacing is from 12, the distance by electric vehicle to the calculating electric vehicle of charging pile distance 12 to nearest charging pile.Electric vehicle
With charging pile spacing module 7 and electricity estimation module 1 by electric vehicle to charging pile distance 12, current sensor 3, battery SOC
Value computing module 2 is sent to electric vehicle mileage estimation module 13.Electric vehicle mileage estimation module 13 receives electricity estimation mould
7 data of block 1, electric vehicle and charging pile spacing module, while battery is calculated according to SOC value of battery 14 and cell output current 16
It is expected that discharge time 17；The vehicle wheel rotational speed surveyed again by wheel speed sensor 19 and battery estimated discharge time 17 are electronic to calculate
Automobile predicted travel distance 8, finally, electric vehicle to charging pile distance 12 and 18 multilevel iudge of electric vehicle predicted travel distance
Can electric vehicle arrive safe and sound charging pile 20.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
Claims (8)
1. a kind of electric vehicle mileage Prediction System, it is characterised in that：The Prediction System includes electric vehicle SOC estimation moulds
Block, GPS bus locations and navigation module and mileage estimate module, and the electric vehicle SOC estimation modules are by host computer and biography
Sensor forms；The GPS bus locations and navigation module, to position automobile position, and are searched using satellite GPS system by map
Rope goes out charging pile position, and vehicle running route is cooked up using navigation system；It is to pass through predictive algorithm that the mileage, which estimates module,
Can electric vehicle be calculated reach nearest electric automobile charging pile with current SOC.
2. a kind of predictor method of electric vehicle mileage Prediction System predicts the surplus of electric vehicle by the mileage predictor method
Can remaining electricity reach apart from nearest charging pile, and mileage predictor method includes that distance estimates step and battery SOC estimates step,
It is characterized in that：Mileage estimates step：
Step 1: by calculating real-time range apart from predictor method, electric vehicle is carried out by GPS satellite positioning system real-time
Positioning is cooked up electric vehicle to the route of charging pile or via setting path arrival charging pile by navigation system, is obtained
Real-time range S of the electric vehicle to charging pile0, and via data transmitter by real-time range S0It is sent to mileage and estimates module；
Step 2: battery SOC estimates step is：
A1. the cell output current I of electric vehicle is obtained by current sensor；
A2. battery capacity Q and efficiency for charge-discharge η is obtained, and the big of battery SOC is calculated according to battery capacity and efficiency for charge-discharge
It is small：
A3. battery SOC obtained by calculating is sent to mileage and estimates module；
It is estimated Step 3: estimating module using mileage to carry out the mileage of electric vehicle：
B1. vehicle wheel rotational speed V is obtained by wheel speed sensor；
B2. it calculates with current electric current I continuous discharges to minimum state-of-charge SOCLThe time of Shi Suoneng electric discharges
B3. automobile predicted travel distance is calculated by vehicle wheel rotational speed V and discharge time T：
Can b4. judge automobile arrive safe and sound charging pile, work as S>S0When, electric vehicle can reach charging pile；Work as S<S0When, sentence
Charging pile cannot be reached for electric vehicle by breaking, and alarm system sends out alarm.
3. a kind of predictor method of electric vehicle mileage Prediction System according to claim 2, it is characterised in that：SOC estimates
Meter module is connected to battery supply, is used for the measuring and calculating of battery SOC predictor method, and the host computer is arithmetic unit, SOC estimation modules
On arithmetic unit be also connected with information input interface and information output interface.
4. a kind of predictor method of electric vehicle mileage Prediction System according to claim 3, it is characterised in that：Electric current passes
The output end of sensor is connected to the arithmetic unit by described information input interface, and SOC estimation modules are also connect by information output
SOC value is delivered to mileage and estimates module by mouth.
5. a kind of predictor method of electric vehicle mileage Prediction System according to claim 2, it is characterised in that：Electronic vapour
On vehicle be arranged mileage estimate module, be used for mileage method of estimation measuring and calculating, mileage estimate module include wheel speed sensor, it is inner
Journey Master control chip and alarm system.
6. a kind of predictor method of electric vehicle mileage Prediction System according to claim 5, it is characterised in that：The vehicle
The output end of wheel speed sensor is connected to the Master control chip, and Master control chip is also connected with data transmitter and information output
Interface, the Master control chip carry out the comparison of the calculating and mileage and real-time mileage of mileage in step 3, and by comparison result
Feed back to alarm system.
7. a kind of predictor method of electric vehicle mileage Prediction System according to claim 6, it is characterised in that：The master
Minimum state-of-charge SOC is also set up on control chipLData input port, input different minimum charged numerical value.
8. a kind of predictor method of electric vehicle mileage Prediction System according to claim 2, it is characterised in that：Step 3
In the mileage of electric vehicle estimate and electric automobile during traveling mileage number can also be estimated using neural network.
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| US11498450B2 (en) * | 2019-05-21 | 2022-11-15 | Rolls-Royce Plc | Forecast of electric vehicle state of charge and energy storage capacity |
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