CN102837697A - Management system and working method for endurance mileage of electric vehicle - Google Patents
Management system and working method for endurance mileage of electric vehicle Download PDFInfo
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Abstract
The invention relates to the technical field of complete electric vehicle management systems, and particularly discloses a management system and a working method for the endurance mileage of an electrical vehicle. The system comprises an acquisition module used for acquiring vehicle location information, actual traffic information, average vehicle speed data, residual battery capacity and power loss information of various vehicle parts, and a confirming module connected with the acquisition module and used for confirming the maximum endurance mileage of a vehicle according the information acquired by the acquisition module. The management system and the working method can calculate the endurance mileage in a comprehensive and dynamic manner, reduce forecast errors to the maximum extent, effectively assist users in planning trips reasonably and improve the experience of the users.
Description
Technical field
The present invention relates to electric automobile whole management system technical field, particularly a kind of electronlmobil continuation of the journey mileage management system and method for work.
Background technology
The propulsive effort of pure electric automobile adopts battery supplied, and the continuation of the journey mileage is very limited, very easily owing to power drain is cast anchor.Because charging electric vehicle speed is slow, brought great inconvenience simultaneously to the user.
Because the energy storage of electronlmobil own is limited; Capacity usage ratio is very high; Consumption for energy is very responsive, and the air-conditioning that in the traffic congestion process, uses, heating, Der Scheinwerfer mit FernlichtAbblendlichtStandlicht even auto audio equipment will lose very big a part of electric power, cause the acute variation of continuation of the journey mileage.This power loss variations that can not expect makes the driver at a loss as to what to do, can't relievedly go on a journey.
The assessment of the mileage of electronlmobil continuation of the journey at present still rests on the conventional thought based on internal-combustion engines vehicle.Usually estimate the SOC of on-vehicle battery (state-of-charge assessment) earlier, and then obtain the situation that vehicle stores electric weight, according to the energy consumption level of average vehicle, estimate remaining travelled distance roughly then.This method is accurate inadequately to the power consumption calculation of annex; Can only calculate current remaining driving mileage; Can not make prediction, can't tackle the complicated road conditions in city, cause power drain easily and make get stuck on the way; And the location information of battery-charging station is not provided to the driver, help the driver to plan circuit.
Summary of the invention
The technical matters that (one) will solve
The technical matters that the present invention will solve provides a kind of electronlmobil continuation of the journey mileage management system and method for work, can effectively avoid the conventional electric-powered automobile to calculate the non-fault of vehicle that power drain that inaccuracy brings the causes phenomenon of casting anchor because of travelled distance.
(2) technical scheme
In order to address the above problem, one aspect of the present invention provides a kind of electronlmobil continuation of the journey mileage management system to comprise:
Acquisition module is used to obtain vehicle position information, actual current traffic information, average ground speed data, the dump energy of battery charge and the watt loss information of each parts of vehicle;
Determination module links to each other with said acquisition module, is used for confirming according to the above-mentioned information that acquisition module gets access to the max mileage of vehicle continuation of the journey.
Further, said acquisition module specifically comprises:
Location and road condition acquiring module are used for collection vehicle location information and actual current traffic information;
The driving data module is used for gathering and stores the some groups of users data of driving a vehicle, each group user drive a vehicle storage in the data with the time period-the gps coordinate point is the average ground speed data in coordinate interval;
The electric weight acquisition module is used to obtain the dump energy of battery charge;
The consumer data module is used for the power loss data under each parts different conditions of store car.
Further, also comprise:
Numerical map, for said location and road condition acquiring module provide vehicle position information and road speed-limiting messages, the affirmation result of confirmation of receipt module, the running route of the vehicle that is used to navigate;
The battery-charging station data module is used to store the location information and the charge parameter of battery-charging station, and said location information is identified on the said numerical map.
On the other hand, the present invention also provides a kind of method of work of management system of electronlmobil continuation of the journey mileage, comprises step:
Whether step S1, inquiry can receive GPS and network signal, if ability, then execution in step S2;
Step S2, obtain the watt loss information of dump energy and each parts of vehicle of vehicle position information, vehicle driving speed, battery charge;
Step S3, confirm the vehicle maximum travelled distance of continuing a journey according to the above-mentioned information that receives.
Further, the said vehicle driving speed of obtaining specifically comprises:
Step S21, read the current time pairing with the time period-the gps coordinate point is the average ground speed data of the interval stored of coordinate;
Step S22, obtain the current traffic information of reality and the road speed-limiting messages in current highway section; And the current traffic information of the said reality that gets access to and road speed-limiting messages and average ground speed data compared, get smaller value as the vehicle driving speed under current time and the highway section.
Further, among the step S1,, then obtain the watt loss information of dump energy and each parts of vehicle of vehicle driving speed, battery charge if do not receive GPS and network signal;
Said vehicle driving speed is the average row car data of the interior no gps coordinate point of same time period of pairing storage in advance of current time.
Further, the said watt loss information of obtaining each parts of vehicle comprises electricity consumption gross horsepower that reads accessory device and the power motor power consumption that draws according to the vehicle driving speed calculation.
Further, said step S3 specifically comprises:
Calculating exhausts the required time t of whole electric energy according to formula (1),
E＝t×(P1+P2) (1)
Wherein, E is the remaining battery gross energy, and P1 is the electricity consumption gross horsepower of accessory device under this state under the current state, and P2 is the power motor power consumption under the averaging of income road speed;
Calculate the maximum travelled distance L of vehicle continuation of the journey then through formula (2),
L＝t×V1 (2)
Wherein V1 is a vehicle driving speed.
Further, also comprise:
Whether step S4, inquiry user import the destination, if when getting access to the destination information that the user imports, judge whether come and go distance is included in the ultimate range scope of drivable, if in being included in, directly demonstrate the walking along the street line.
Further, be not included in the ultimate range scope of drivable, judge whether one way distance is positioned at the ultimate range scope of drivable if come and go distance; If in being included in; Then show one way trip route, show simultaneously and go to the route of battery-charging station, and the route that returns to one's starting point after the charging is provided; If in not being included in, the route of battery-charging station is provided then, and the feasible route that arrives the destination through the relay charging is provided.
Further, if when not getting access to destination information, show the accessibility Far Range of one way respectively and come and go accessibility scope.
Further, the max mileage of said continuation of the journey comprises round max mileage and one way max mileage, under the said one way max mileage pattern, need in real time the one way max mileage be proofreaied and correct according to the position of battery-charging station.
Further, among the step S21, if storage in advance with the time period-the gps coordinate point is average ground speed data in the district of coordinate when being single quantity, then obtain the road speed under the different highway sections state in the current slot, and calculate average vehicle speed data.
(3) beneficial effect
Electronlmobil continuation of the journey mileage management system provided by the invention and method of work; By wireless network; The mileage that continuation of the journey is gone is carried out comprehensively, dynamically calculated to parameters such as service condition through analysis environments road conditions factor, onboard system and vehicle expenditure of energy; Farthest reduce predicated error, can effectively assist the user reasonably to plan stroke, improve user's experience sense; Simultaneously, scientifically drive a car, can give full play to the performance of automobile, strengthen the safe driving coefficient.
Description of drawings
Fig. 1 is electronlmobil continuation of the journey mileage management system middle rolling car data module memory module of the present invention;
Fig. 2 is electronlmobil continuation of the journey mileage management system scheme drawing of the present invention;
Fig. 3 is the method for work diagram of circuit of the management system of electronlmobil continuation of the journey mileage of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, specific embodiments of the invention describes in further detail.Following examples are used to explain the present invention, but are not used for limiting scope of the present invention.
Shown in Fig. 1-2; Embodiment of the invention electronlmobil continuation of the journey mileage management system comprises: obtain template and confirm module 4; This acquisition module is used to obtain vehicle position information, actual current traffic information, average ground speed data, the dump energy of battery charge and the watt loss information of each parts of vehicle.
Wherein, obtain template and comprise location and road condition acquiring module 1, driving data module 2, consumer data module 3, electric weight acquisition module 7, numerical map 5 and battery-charging station data module 6.
This location and road condition acquiring module 1 are used to obtain vehicle position information, and gather actual current traffic information in real time.In the present embodiment; Location and road condition acquiring module adopt GPS (Global Positioning System; Global positioning system) or AGPS (Assisted Global Positioning System; Agps system) obtains the vehicle current position information, and reference by location is provided, gather and upgrade the up-to-date traffic information of traffic department's issue through wireless network in real time for gathering the driving data module; Be specially the actual passage rate information of road and the road speed-limiting messages in the numerical map in the present embodiment, for the subsequent calculations vehicle through the time average ground speed reference is provided.Location and road condition acquiring module 1 are sent to determination module 4 with the information of obtaining.
If vehicle be in have GPS and network signal local time, in the time of promptly can collecting gps signal and AGPS signal, with the time period-the gps coordinate point is to obtain the average velociity data in the zone, highway section that forms of coordinate mode.When if vehicle is in the situation with network signal, driving data module 2 is only gathered the average row car data of no gps coordinate point in the pairing same time period of current time.Compare with the situation with network signal, the particularity of the average row car data that collects under this kind situation has certain decline.Driving data module 22 is sent to the average velociity data confirms module 4.
Time period in the present embodiment is the time gap of dividing by the hour.With 1 hour was that unit stores the average ground speed data, reflected the congestion of different time sections traffic.
Electric weight acquisition module 7 is used to obtain the dump energy of battery charge, and the dump energy information that gets access to is sent to confirms module 4.
In addition; This electronlmobil continuation of the journey mileage management system number also comprises: numerical map 5; For the location and road condition acquiring module 1 vehicle position information and road speed-limiting messages are provided, the affirmation result of confirmation of receipt module 4 is to identify vehicle within the reach position on real road.It adopts GPS navigation to use numerical map, the running route of the vehicle that is used to navigate.
Battery-charging station data module 6 is used to store the location information and the charge parameter of battery-charging station, and this location information is identified on this numerical map 5.This charge parameter mainly refers to the needed time of vehicle full charge.
This determination module 4 links to each other with acquisition module, is used for confirming according to the information that location and road condition acquiring module 1, drive a vehicle data module 2, consumer data module 3 and electric weight acquisition module 7 send over the max mileage of vehicle continuation of the journey.
As shown in Figure 3, the method for work of the management system of embodiment of the invention electronlmobil continuation of the journey mileage comprises step:
Whether step S1, inquiry can receive GPS and AGPS network signal, if ability, then execution in step S2.If when searching for, carry out following steps: the watt loss information of obtaining dump energy and each parts of vehicle of vehicle driving speed, battery charge less than GPS or AGPS network signal.Be specially: the average row car data that only obtains no gps coordinate point in the same time period of storing in advance according to the time period mode.Obtain the accessory device electricity consumption gross horsepower P under the current load condition
1With the power motor power consumption P under the averaging of income vehicle speed data
2
It is the remaining battery gross energy that E wherein is set, through reading acquisition; t
1Represent first time period time gap, setting each time period is 1 hour, P
11Represent first time period annex electricity consumption gross horsepower, can directly read acquisition; P
21Represent first time period internally-powered motor power consumption, because t
1The average row car data of time period is known, then P
21Be known quantity, so, E
1=t
1(P
11+ P
21), E
1Represent the expenditure of energy in first time period, E
2Represent that second time period self-energy consumes ... E
nRepresent the expenditure of energy in N time period.When vehicle finally runs out of remaining dump energy energy, E-[E
1+ E
2+ ... E
n]≤0, i.e. E-[t
1(P
11+ P
21)+...+t
n(P
1n+ P
2n)]≤0, wherein n gets positive number.T=(n-1)+[E-[t then
1(P
11+ P
21)+...+t
N-1(P
1 (n-1)+ P
2 (n-1))]]/t
n(P
1n+ P
2n), then can calculate and exhaust the required time t of whole electric energy.Then through formula L=1 * V1+...+1 * V
N-1+ [t-(n-1)] V
nThen can calculate maximum travelled distance, wherein L is maximum travelled distance, V
nIt is the average speeds of n time period.Under this kind situation, the continuation of the journey mileage will show that be used to point out the user not with power drain, simultaneously, vehicle is in cruising with the form of numeral always, and available continuation of the journey mileage will be brought in constant renewal in.
Step S2, obtain the watt loss information of dump energy and each parts of vehicle of vehicle position information, vehicle driving speed, battery charge.
Wherein, through in battery management system, reading the SOC data, draw the surplus of current battery.
Wherein, obtaining vehicle driving speed specifically comprises:
Step S21, read the current time pairing with the time period-the gps coordinate point is the average ground speed data of the interval stored of coordinate.With reference to figure 1, time period t is 1 hour the random time section in interval.Form a square shaped cells zone by gps coordinate A1, A2, B1 and B2, write down under this time period many groups speed of a motor vehicle of user in this zone, its many group speed of a motor vehicle are averaged as the average ground speed data a of this time period in should the zone; Perhaps form a square shaped cells zone by gps coordinate A2, A3, B2 and B3, the many groups of the record speed of a motor vehicle in this zone average its many group speed of a motor vehicle as the average ground speed data b of this time period in should the zone.
Step S22, obtain the current traffic information of reality and the road speed-limiting messages in current highway section; And the current traffic information of the said reality that gets access to and road speed-limiting messages and average ground speed data compared, get smaller value as the vehicle driving speed under current time and the highway section.If current when not having up-to-date road conditions, can compare according to road speed-limiting messages in the numerical map and average vehicle speed data, get smaller value as vehicle driving speed.
Wherein, the watt loss information of obtaining each parts of vehicle comprises: read the electricity consumption gross horsepower of accessory device and the power motor power consumption that draws according to the vehicle driving speed calculation.
Step S3, confirm the vehicle maximum travelled distance of continuing a journey according to the above-mentioned information that receives.
Calculate maximum travelled distance through formula:
E＝t×(P
1+P
2)； (1)
L
Always=V * t; (2)
In the formula: L is the maximum travelled distance of drivable, P
1Be accessory device power consumption, P
2Be the power motor power consumption, V is a vehicle driving speed, and E is the remaining battery gross energy.
Can draw E=L (P by formula (1) and (2)
1+ P
2)/V, L get the regional length of side (for predefined known constant) of square shaped cells that gps coordinate is divided, the distance in promptly actual each unit area.Through along possible target direction the unit area of process calculate energy consumption one by one.
Wherein, P is set
11Be annex electricity consumption of equipment power in first unit area, P
21Be first unit area internally-powered motor power consumption, P
11Can know by the parts that read vehicle,, therefore, can draw P because the average ground speed data in this unit area are known
21, in like manner can push away, P is set
1nBe annex electricity consumption of equipment power in n the unit area, P
2nBe n unit area internally-powered motor power consumption, formula: L (P
1n+ P
2n)/V
nRepresent the energy consumption in n the cell, wherein, V
nRepresent average ground speed data in n the unit area.
When vehicle finally runs out of remaining dump energy energy, E-[L (P
11+ P
21)/V
1+ ...+L (P
1n+ P
2n)/V
n]≤0, wherein n gets positive number, therefore, L
Always=L * (n-1)+L [E-[L (P
11+ P
21)/V
1+ ...+L (P
1 (n-1)+ P
2 (n-1))/V
N-1]]/[L (P
1n+ P
2n)/V
n].
After the flying power of vehicle confirmed, comprise also whether step S4, inquiry user import the destination,, calculate that method is the same along the circuit of navigationsystem planning if when getting access to the destination information that the user imports.Judge whether come and go distance is included in the ultimate range scope of drivable, if in being included in, directly demonstrate the walking along the street line; Be not included in the ultimate range scope of drivable if come and go distance, judge whether one way distance is positioned at the ultimate range scope of drivable,, then show one way trip route, show the route that goes to battery-charging station simultaneously if in being included in; If in not being included in, the route that arrives battery-charging station then is provided, help user's planning to arrive the route of destination with the relay charging modes.If when not getting access to destination information, on numerical map, show the location information of battery-charging station, and show the accessibility Far Range of one way and come and go accessibility scope at numerical map can arrive area format.
In the vehicle ' process, electronlmobil continuation of the journey mileage management system is constantly calculated current residual capacity of battery, and intelligence provides the maximum operating range that goes and can reach with most economical mode.System preestablishes mileage warning numerical value, when remaining the continuation of the journey travelled distance near mileage warning numerical value, and auto alarm.
The max mileage of the continuation of the journey in the embodiment of the invention comprises round max mileage and one way max mileage; Under the one way max mileage pattern; Need in real time the one way max mileage be proofreaied and correct according to the position of battery-charging station, to guarantee that the user can arrive battery-charging station and obtain the return required electric power.The user relies on the dwelling house power supply to carry out electrically-charged at a slow speed for a long time situation because randomness is very very much not taken into account.
Electronlmobil continuation of the journey mileage management system provided by the invention and confirmation method; By wireless network; The mileage that continuation of the journey is gone is carried out comprehensively, dynamically calculated to parameters such as service condition through analysis environments road conditions factor, onboard system and vehicle expenditure of energy; Farthest reduce predicated error, can effectively assist the user reasonably to plan stroke, improve user's experience sense; Simultaneously, scientifically drive a car, can give full play to the performance of automobile, strengthen the safe driving coefficient.
Above embodiment only is used to explain the present invention; And be not limitation of the present invention; The those of ordinary skill in relevant technologies field under the situation that does not break away from the spirit and scope of the present invention, can also be made various variations and modification; Therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (13)
1. an electronlmobil continuation of the journey mileage management system is characterized in that, comprising:
Acquisition module is used to obtain vehicle position information, actual current traffic information, average ground speed data, the dump energy of battery charge and the watt loss information of each parts of vehicle;
Determination module links to each other with said acquisition module, is used for confirming according to the above-mentioned information that acquisition module gets access to the max mileage of vehicle continuation of the journey.
2. electronlmobil continuation of the journey mileage management system as claimed in claim 1 is characterized in that said acquisition module specifically comprises:
Location and road condition acquiring module are used for collection vehicle location information and actual current traffic information;
The driving data module is used for gathering and stores the some groups of users data of driving a vehicle, each group user drive a vehicle storage in the data with the time period-the gps coordinate point is the average ground speed data in coordinate interval;
The electric weight acquisition module is used to obtain the dump energy of battery charge;
The consumer data module is used for the power loss data under each parts different conditions of store car.
3. electronlmobil continuation of the journey mileage management system as claimed in claim 2 is characterized in that, also comprises:
Numerical map, for said location and road condition acquiring module provide vehicle position information and road speed-limiting messages, the affirmation result of confirmation of receipt module, the running route of the vehicle that is used to navigate;
The battery-charging station data module is used to store the location information and the charge parameter of battery-charging station, and said location information is identified on the said numerical map.
4. the method for work of the management system of an electronlmobil continuation of the journey mileage is characterized in that, comprises step:
Whether step S1, inquiry can receive GPS and network signal, if ability, then execution in step S2;
Step S2, obtain the watt loss information of dump energy and each parts of vehicle of vehicle position information, vehicle driving speed, battery charge;
Step S3, confirm the vehicle maximum travelled distance of continuing a journey according to the above-mentioned information that receives.
5. the method for work of the management system of electronlmobil continuation of the journey mileage as claimed in claim 4 is characterized in that the said vehicle driving speed of obtaining specifically comprises:
Step S21, read the current time pairing with the time period-the gps coordinate point is the average ground speed data of the interval stored of coordinate;
Step S22, obtain the current traffic information of reality and the road speed-limiting messages in current highway section; And the current traffic information of the said reality that gets access to and road speed-limiting messages and average ground speed data compared, get smaller value as the vehicle driving speed under current time and the highway section.
6. the method for work of the management system of electronlmobil continuation of the journey mileage as claimed in claim 4; It is characterized in that; Among the step S1,, then obtain the watt loss information of dump energy and each parts of vehicle of vehicle driving speed, battery charge if do not receive GPS and network signal;
Said vehicle driving speed is the average row car data of the interior no gps coordinate point of same time period of pairing storage in advance of current time.
7. like the method for work of the management system of claim 4 or 6 described electronlmobils continuation of the journey mileages; It is characterized in that the said watt loss information of obtaining each parts of vehicle comprises electricity consumption gross horsepower that reads accessory device and the power motor power consumption that draws according to the vehicle driving speed calculation.
8. the method for work of the management system of electronlmobil continuation of the journey mileage as claimed in claim 4 is characterized in that said step S3 specifically comprises:
Calculating exhausts the required time t of whole electric energy according to formula (1),
E＝t×(P1+P2) (1)
Wherein, E is the remaining battery gross energy, and P1 is the electricity consumption gross horsepower of accessory device under this state under the current state, and P2 is the power motor power consumption under the averaging of income road speed;
Calculate the maximum travelled distance L of vehicle continuation of the journey then through formula (2),
L＝t×V1 (2)
Wherein V1 is a vehicle driving speed.
9. the method for work of the management system of electronlmobil continuation of the journey mileage as claimed in claim 4 is characterized in that, also comprises:
Whether step S4, inquiry user import the destination, if when getting access to the destination information that the user imports, judge whether come and go distance is included in the ultimate range scope of drivable, if in being included in, directly demonstrate the walking along the street line.
10. the method for work of the management system of electronlmobil continuation of the journey mileage as claimed in claim 9; It is characterized in that, be not included in the ultimate range scope of drivable, judge whether one way distance is positioned at the ultimate range scope of drivable if come and go distance; If in being included in; Then show one way trip route, show simultaneously and go to the route of battery-charging station, and the route that returns to one's starting point after the charging is provided; If in not being included in, the route of battery-charging station is provided then, and the feasible route that arrives the destination through the relay charging is provided.
11. the method for work of the management system of electronlmobil as claimed in claim 10 continuation of the journey mileage is characterized in that, if when not getting access to destination information, shows the accessibility Far Range of one way respectively and comes and goes accessibility scope.
12. the method for work of the management system of electronlmobil continuation of the journey mileage as claimed in claim 4; It is characterized in that; The max mileage of said continuation of the journey comprises round max mileage and one way max mileage; Under the said one way max mileage pattern, need in real time the one way max mileage be proofreaied and correct according to the position of battery-charging station.
13. the method for work of the management system of electronlmobil continuation of the journey mileage as claimed in claim 5; It is characterized in that; Among the step S21; If storage in advance with the time period-the gps coordinate point is average ground speed data in the district of coordinate when being single quantity, then obtain the road speed under the different highway sections state in the current slot, and calculate average vehicle speed data.
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