Summary of the invention
(1) technical matters that will solve
The technical problem to be solved in the present invention is to provide a kind of electronlmobil course continuation mileage management system and method for work, and the vehicle non-faulting can effectively avoiding traditional electronlmobil to cause because travelled distance calculates the power drain brought of inaccuracy is cast anchor phenomenon.
(2) technical scheme
In order to solve the problem, one aspect of the present invention provides a kind of electronlmobil course continuation mileage management system to comprise:
Acquisition module, for obtaining vehicle position information, actual current traffic information, average ground speed data, the dump energy of battery charge and the watt loss information of various vehicle components;
Determination module, is connected with described acquisition module, the max mileage that the above-mentioned information determination vehicle for getting according to acquisition module is continued a journey.
Further, described acquisition module specifically comprises:
Location and road condition acquiring module, to pass through traffic information for collection vehicle location information and reality;
Travelling data module, for gathering and storing some groups of user's travelling datas, store in each group user travelling data with time period-interval that gps coordinate point is coordinate in average ground speed data;
Electricity acquisition module, for obtaining the dump energy of battery charge;
Consumer data module, for the power loss data under each parts different conditions of store car.
Further, also comprise:
Numerical map, for described location and road condition acquiring module provide vehicle position information and road speed-limiting messages, the confirmation result of confirmation of receipt module, for the running route of the vehicle that navigates;
Battery-charging station data module, for storing location information and the charge parameter of battery-charging station, and is identified at described location information on described numerical map.
On the other hand, the present invention also provides a kind of method of work of management system of electronlmobil course continuation mileage, comprises step:
Whether step S1, inquiry can receive GPS and network signal, if can, then perform step S2;
Step S2, acquisition vehicle position information, vehicle driving speed, the dump energy of battery charge and the watt loss information of various vehicle components;
The above-mentioned information determination vehicle continuation of the journey maximum range that step S3, basis receive.
Further, described acquisition vehicle driving speed specifically comprises:
Step S21, read corresponding to current time with time period-interval that gps coordinate point is coordinate in the average ground speed data that store;
Step S22, obtain the reality of current road segment and to pass through traffic information and road speed-limiting messages, and the described reality got passed through traffic information and road speed-limiting messages and average ground speed data compare, and get smaller value as the vehicle driving speed under current time and section.
Further, in step S1, if do not receive GPS and network signal, then obtain vehicle driving speed, the dump energy of battery charge and the watt loss information of various vehicle components;
Without the average row car data of gps coordinate point in the same time period that prestore of described vehicle driving speed corresponding to current time.
Further, the watt loss information of described acquisition various vehicle components comprises the electricity consumption gross horsepower reading accessory device and the power motor power consumption calculated according to vehicle driving speed.
Further, described step S3 specifically comprises:
The time t exhausted needed for whole electric energy is calculated according to formula (1),
E＝t×(P1+P2) (1)
Wherein, E is remaining battery gross energy, and P1 is the accessory device electricity consumption gross horsepower in this condition under current state, and P2 is the power motor power consumption under averaging of income road speed;
Then the maximum range L of vehicle continuation of the journey is calculated by formula (2),
L＝t×V1 (2)
Wherein V1 is vehicle driving speed.
Further, also comprise:
Whether step S4, inquiry user input destination, during the destination information that user inputs if get, judge that whether come and go distance is included within the scope of the ultimate range of wheeled, if be included, directly shows traffic path.
Further, be not included within the scope of the ultimate range of wheeled if come and go distance, judge whether one way distance is positioned at the ultimate range scope of wheeled, if be included, then show one way traffic path, the route of battery-charging station is gone in display simultaneously, and the route returned to one's starting point after charging is provided; If be not included, then provide the route of battery-charging station, and the feasible route being arrived destination by relay charging is provided.
Further, if when not getting destination information, show the accessibility Far Range of one way respectively and come and go accessibility scope.
Further, the max mileage of described continuation of the journey comprises round max mileage and one way max mileage, under described one way max mileage pattern, needs the position according to battery-charging station, corrects in real time to one way max mileage.
Further, in step S21, if prestore with time period-district that gps coordinate point is coordinate in average ground speed data be single quantity time, then obtain the road speed under the different sections of highway state in current slot, and calculate average ground speed data.
(3) beneficial effect
Electronlmobil course continuation mileage management system provided by the invention and method of work, by wireless network, undertaken comprehensively by parameters such as the service condition of analysis environments road conditions factor, onboard system and vehicle energy consumption, dynamically calculate the mileage that continuation of the journey travels, farthest reduce predicated error, can effectively assist user reasonably to plan stroke, improve the experience sense of user; , scientifically drive a car meanwhile, the performance of automobile can be given full play to, strengthen safe driving coefficient.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
As shown in Figure 1-2, embodiment of the present invention electronlmobil course continuation mileage management system comprises: obtain template and confirm module 4, this acquisition module, for obtaining vehicle position information, actual current traffic information, average ground speed data, the dump energy of battery charge and the watt loss information of various vehicle components.
Wherein, obtain template and comprise location and road condition acquiring module 1, travelling data module 2, consumer data module 3, electricity acquisition module 7, numerical map 5 and battery-charging station data module 6.
This location and road condition acquiring module 1 are for obtaining vehicle position information, and the actual current traffic information of Real-time Collection.In the present embodiment, location and road condition acquiring module adopt GPS (GlobalPositioning System, global positioning system) or AGPS (Assisted GlobalPositioning System, agps system) obtain the current location information of vehicle, and provide reference by location for gathering travelling data module, by wireless network Real-time Collection and upgrade traffic department issue up-to-date traffic information, the road speed-limiting messages in the actual passage rate information of road and numerical map is specially in the present embodiment, for subsequent calculations vehicle by time average ground speed reference is provided.The information of acquisition is sent to determination module 4 by location and road condition acquiring module 1.
Travelling data module 2, for gathering and storing some groups of user's travelling datas, each group data divided with the time period, and each group comprises and is divided into some unit by gps coordinate, each unit record by four gps coordinates form average speed data in region, section.See Fig. 1, wherein, time period t is the interval random time section of 1 hour.Form a square shaped cells region by gps coordinate A1, A2, B1 and B2, record many groups speed of a motor vehicle of this time period Xia Gai district intra domain user, its many group speed of a motor vehicle is averaged as the average ground speed data a in this region of this time period; Or form a square shaped cells region by gps coordinate A2, A3, B2 and B3, in this region, the speed of a motor vehicle organized in record more, its many group speed of a motor vehicle is averaged as the average ground speed data b in this region of this time period.
If vehicle be in have GPS and network signal local time, when namely can collect gps signal and AGPS signal, with time period-gps coordinate point obtains average speed data in the region, section that formed for coordinated manner.If when vehicle is in the situation without network signal, travelling data module 2 only gathers the average row car data without gps coordinate point in the same time period corresponding to current time.Compared with the situation with network signal, the particularity of the average row car data collected in this kind of situation has certain decline.Average speed data is sent to and confirms module 4 by travelling data module 22.
Time period in the present embodiment is the time gap divided by the hour.In units of 1 hour, store average ground speed data, reflect the congestion of different time sections traffic.
Consumer data module 3, for the watt loss under collection vehicle each parts different load state, comprises the watt loss of annex in vehicle and power motor.Read the various sensing datas on vehicle by CAN, the load condition of various electricity consumption accessory device can be judged.And the power loss data of power motor adopt with under the using state of two people's loading 30 kilograms for basic status, and record in this condition respectively, the energy consumption building database of the different speed of a motor vehicle.Power consumption data in acquisition database is sent to and confirms module 4 by consumer data module 3.Consumer data module 3 timing of the present embodiment upgrades the power consumption state of vehicle, and the new power consumption data obtained is sent to confirmation module 4, confirm that module 4 confirms according to new data the max mileage that vehicle is continued a journey, so, max mileage of continuing a journey in vehicle travel process will constantly be updated, and more and more accurate.
Electricity acquisition module 7, for obtaining the dump energy of battery charge, and is sent to confirmation module 4 by the dump energy information got.
In addition, this electronlmobil course continuation mileage management system number also comprises: numerical map 5, for location and road condition acquiring module 1 provide vehicle position information and road speed-limiting messages, the confirmation result of confirmation of receipt module 4, to identify the position that vehicle can arrive on real road.It adopts GPS navigation numerical map, for the running route of the vehicle that navigates.
Battery-charging station data module 6, for storing location information and the charge parameter of battery-charging station, and is identified at this location information on this numerical map 5.This charge parameter mainly refers to the time required for vehicle full charge.
This determination module 4, is connected with acquisition module, the max mileage that the information determination vehicle for sending over according to location and road condition acquiring module 1, travelling data module 2, consumer data module 3 and electricity acquisition module 7 is continued a journey.
As shown in Figure 3, the method for work of the management system of embodiment of the present invention electronlmobil course continuation mileage, comprises step:
Whether step S1, inquiry can receive GPS and AGPS network signal, if can, then perform step S2.If when search is less than GPS or AGPS network signal, perform following steps: obtain vehicle driving speed, the dump energy of battery charge and the watt loss information of various vehicle components.Be specially: only obtain the average row car data without gps coordinate point in the same time period prestored according to time period mode.Obtain the accessory device electricity consumption gross horsepower P under current loads state1with the power motor power consumption P under averaging of income vehicle speed data2.
Wherein arranging E is remaining battery gross energy, obtains by reading; t1represent first time period time gap, setting each time period is 1 hour, P11represent first time period annex electricity consumption gross horsepower, directly can read acquisition; P21represent first time period internally-powered motor power consumption, due to t1the average row car data of time period is known, then P21for known quantity, so, E1=t1(P11+ P21), E1represent the energy ezpenditure in first time period, E2represent that second time period self-energy consumes ... Enrepresent the energy ezpenditure in N number of time period.When vehicle finally runs out of remaining dump energy energy, E-[E1+ E2+ ... En]≤0, i.e. E-[t1(P11+ P21)+...+tn(P1n+ P2n)]≤0, wherein n gets positive number.Then t=(n-1)+[E-[t1(P11+ P21)+...+tn-1(P1 (n-1)+ P2 (n-1))]]/tn(P1n+ P2n), then can calculate the time t exhausted needed for whole electric energy.Then by formula L=1 × V1+...+1 × Vn-1+ [t-(n-1)] Vnthen can calculate maximum range, wherein L is maximum range, Vnit is the average speeds of the n-th time period.In that case, course continuation mileage will show in digital form always, and for pointing out user not by power drain, meanwhile, vehicle is in normal traveling, and available course continuation mileage data will be constantly updated.
Step S2, acquisition vehicle position information, vehicle driving speed, the dump energy of battery charge and the watt loss information of various vehicle components.
Wherein, by reading SOC data in battery management system, the surplus of present battery is drawn.
Wherein, obtain vehicle driving speed specifically to comprise:
Step S21, read corresponding to current time with time period-interval that gps coordinate point is coordinate in the average ground speed data that store.With reference to figure 1, time period t is the interval random time section of 1 hour.Form a square shaped cells region by gps coordinate A1, A2, B1 and B2, record many groups speed of a motor vehicle of this time period Xia Gai district intra domain user, its many group speed of a motor vehicle is averaged as the average ground speed data a in this region of this time period; Or form a square shaped cells region by gps coordinate A2, A3, B2 and B3, in this region, the speed of a motor vehicle organized in record more, its many group speed of a motor vehicle is averaged as the average ground speed data b in this region of this time period.
Step S22, obtain the reality of current road segment and to pass through traffic information and road speed-limiting messages, and the described reality got passed through traffic information and road speed-limiting messages and average ground speed data compare, and get smaller value as the vehicle driving speed under current time and section.When there is no up-to-date road conditions if current, can compare according to road speed-limiting messages in numerical map and average vehicle speed data, get smaller value as vehicle driving speed.
Wherein, the watt loss information obtaining various vehicle components comprises: the electricity consumption gross horsepower reading accessory device and the power motor power consumption calculated according to vehicle driving speed.
The above-mentioned information determination vehicle continuation of the journey maximum range that step S3, basis receive.
By following formulae discovery maximum range:
E＝t×(P1+P2)； (1)
Lalways=V × t; (2)
In formula: L is the maximum range of wheeled, P1for accessory device power consumption, P2for power motor power consumption, V is vehicle driving speed, and E is remaining battery gross energy.
Can be drawn by formula (1) and (2), E=L (P1+ P2)/V, L gets the length of side (the known constant for presetting) in the square shaped cells region that gps coordinate divides, the distance namely in actual each unit area.By along possible target direction the unit area of process calculate energy consumption one by one.
Wherein, P is set11be annex electricity consumption of equipment power in first unit area, P21be first unit area internally-powered motor power consumption, P11from the parts reading vehicle, because the average ground speed data in this unit area are known, therefore, P can be drawn21, in like manner can push away, P is set1nbe annex electricity consumption of equipment power in the n-th unit area, P2nbe the n-th unit area internally-powered motor power consumption, formula: L (P1n+ P2n)/Vnrepresent the energy consumption in the n-th cell, wherein, Vnrepresent average ground speed data in the n-th unit area.
When vehicle finally runs out of remaining dump energy energy, E-[L (P11+ P21)/V1+ ...+L (P1n+ P2n)/Vn]≤0, wherein n gets positive number, therefore, Lalways=L × (n-1)+L [E-[L (P11+ P21)/V1+ ...+L (P1 (n-1)+ P2 (n-1))/Vn-1]]/[L (P1n+ P2n)/Vn].
After confirming the flying power of vehicle, also comprise step S4, whether inquiry user inputs destination, during the destination information that user inputs if get, the circuit along navigationsystem planning calculates, and method is the same.Judge that whether come and go distance is included within the scope of the ultimate range of wheeled, if be included, directly shows traffic path; If coming and going distance is not included within the scope of the ultimate range of wheeled, judges whether one way distance is positioned at the ultimate range scope of wheeled, if be included, then show one way traffic path, the route of battery-charging station is gone in display simultaneously; If be not included, then provide the route arriving battery-charging station, help user's planning to arrive the route of destination with relay charging modes.If when not getting destination information, numerical map shows the location information of battery-charging station, and so that area format can be arrived in the numerical map accessibility Far Range of display one way and round accessibility scope.
In vehicle travel process, electronlmobil course continuation mileage management system constantly calculates present battery surplus, and intelligence provides and travels the maximum operating range that can reach in most economical mode.System presets mileage warning numerical value, when remaining continuation of the journey travelled distance close to mileage warning numerical value, and automatic alarm.
The max mileage of the continuation of the journey in the embodiment of the present invention comprises round max mileage and one way max mileage, under one way max mileage pattern, need the position according to battery-charging station, in real time one way max mileage is corrected, to ensure that user can arrive battery-charging station and obtain return required electric power.The situation that user relies on residential power to carry out charging at a slow speed is for a long time because randomness is very very much not taken into account.
Electronlmobil course continuation mileage management system provided by the invention and confirmation method, by wireless network, undertaken comprehensively by parameters such as the service condition of analysis environments road conditions factor, onboard system and vehicle energy consumption, dynamically calculate the mileage that continuation of the journey travels, farthest reduce predicated error, can effectively assist user reasonably to plan stroke, improve the experience sense of user; , scientifically drive a car meanwhile, the performance of automobile can be given full play to, strengthen safe driving coefficient.
Above embodiment is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.