CN112572168A - Extended range electric vehicle energy management control method based on charging management - Google Patents
Extended range electric vehicle energy management control method based on charging management Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
- B60L50/62—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles charged by low-power generators primarily intended to support the batteries, e.g. range extenders
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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
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The invention discloses a charging management-based energy management control method for a range-extended electric vehicle, which is characterized in that a charging management scheme is added on the basis of an original multi-working-point control strategy, so that the whole vehicle uses clean and cheap electric energy in a power grid as much as possible, namely, the time proportion of a pure electric driving mode is improved as much as possible, the utilization rate of the range-extended electric vehicle on the cheap and clean electric energy in the power grid is improved, the driving cost of the whole vehicle is reduced, and the economical efficiency is improved; the range-extending mode starting time of the range-extending electric automobile is reduced, the emission performance of the whole automobile is improved, and the urban air quality is improved to a certain extent. According to the invention, the driver is reminded of charging at a proper time, and a series of flows and strategies are formulated to assist the charging flow of the driver, so that the clean and cheap electric energy in the power grid can be fully utilized in the running process of the extended-range electric automobile, and the economy and the emission performance of the extended-range electric automobile are optimized.
Description
Technical Field
The invention belongs to the technical field of new energy automobiles, and particularly relates to an energy management control method for a range-extended electric automobile.
Background
In recent years, new energy automobiles are vigorously developed in countries around the world to reduce the influence of air pollution and greenhouse effect on the environment. Although the pure electric vehicle can run without emission in the whole running process, the pure electric vehicle is influenced by the small energy density, the high cost and the short driving range of the power battery, and is not hindered by small obstacles in the popularization process at present. However, the extended range electric vehicle has a smaller power battery, a lower cost and a considerable driving range, and thus becomes a research hotspot of the current new energy vehicles.
The range-extended electric automobile has two energy sources, namely a power battery and a range extender, and the distribution of the required power of the whole automobile between the two energy sources is coordinated through a reasonable and effective energy management control method, so that the key of ensuring the dynamic property and the economical efficiency of the whole automobile is realized. At present, many researches on energy control strategies of extended range electric vehicles are carried out, and the effects are different.
Currently, a thermostat control strategy, a power following control strategy, a multi-working-point control strategy, an optimal curve control strategy, a control strategy based on intelligent optimization and the like are used as more strategies. However, the existing energy management control strategy for the extended range electric vehicle mainly focuses on how to save energy during the vehicle traveling process, and there is only a fresh research on how to reduce fuel consumption and improve the economy of the whole vehicle by fully utilizing clean and cheap electric energy in a power grid. By comparing the current fuel price with the resident electricity price and the hundred kilometers of consumed fuel and electricity data, the economy of the whole vehicle consumed electricity running is much higher than that of the consumed oil running. Therefore, the research on how to fully utilize the electric energy of the power grid has important significance on the economy of the extended-range electric automobile.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a charging management-based energy management control method for a range-extended electric vehicle, which is characterized in that a charging management scheme is added on the basis of the original multi-working-point control strategy, so that the whole vehicle can use clean and cheap electric energy in a power grid as much as possible, namely, the time proportion of a pure electric driving mode is improved as much as possible, the utilization rate of the range-extended electric vehicle on the cheap and clean electric energy in the power grid is improved, the driving cost of the whole vehicle is reduced, and the economy is improved; the range-extending mode starting time of the range-extending electric automobile is reduced, the emission performance of the whole automobile is improved, and the urban air quality is improved to a certain extent.
In order to achieve the purpose, the invention provides the following technical scheme:
an extended range electric vehicle energy management control method based on charging management comprises the following steps:
step one, establishing a multi-working-point energy control strategy framework:
s1: according to the power requirement of the whole vehicle and referring to the universal characteristic curve diagram of the engine, respectively selecting a working point when the engine is in a light load state, a medium load state and a high load state, and respectively defining the selected three working points as a working point 1, a working point 2 and a working point 3 of the range extender;
s2: setting two battery SOC trigger points, namely SOC _ high and SOC _ low, and setting a minimum SOC node value of the battery, namely SOC _ min, under the condition of not damaging the service life of the battery according to the performance of the power battery; setting two vehicle speed trigger points, namely V _ high and V _ low, according to the power performance of the whole vehicle; the parameters are used for distributing energy of the whole vehicle under different loads;
s3: judging whether the vehicle needs to be charged according to the current SOC value of the battery and selecting the vehicle to a driver through charging; judging whether a whole vehicle range extending mode is started or not according to a charging selection result of a driver; if the whole vehicle starts the range extending mode, the charging management system switches the working point of the engine according to different power battery SOC values and the current vehicle speed value and by taking the battery SOC trigger point and the vehicle speed trigger point selected in the step S2 as references, and performs energy distribution on the whole vehicle under different loads;
step two: when the driver selects to charge the vehicle in step S3, the entire vehicle is charged under the control of the C-EVICMS:
s4: the C-EVICMS system judges whether a proper charging station exists or not, and if the proper charging station exists, the charging station is selected and the charging step is continued; if the charging station is not suitable for the charging station, the range extender is directly started, the whole vehicle enters a range extension mode, energy is reasonably distributed through a multi-working-point control strategy, and the whole vehicle is driven to run;
s5: calculating the running energy consumption of the vehicle to the selected charging station;
s6: the whole vehicle charging management system judges whether the vehicle can reach the selected charging station before the SOC is reduced to SOC _ min through the battery capacity and the driving energy consumption calculated in the step S5; if the vehicle can arrive, the power battery drives the whole vehicle independently until the vehicle reaches a charging station; if the SOC value cannot reach the SOC value, the whole vehicle is driven by the power battery alone until the SOC reaches the SOC _ min, then the range extending mode is started, and the SOC value is maintained until the SOC value reaches the selected charging station.
Further, the step S3 includes the following processes:
when the current battery SOC is more than or equal to SOC _ high, the whole vehicle is independently powered by the power battery no matter how the vehicle speed is, the range extender is not started, and the engine does not work;
when the current battery SOC is smaller than SOC _ high, the whole vehicle charging management system prompts a driver of a charging requirement, and if the driver selects charging, the vehicle is charged according to a set charging process; if the driver selects not to charge temporarily, the whole vehicle starts a range extending mode, the charging management system compares the set SOC trigger point and the set vehicle speed trigger point according to different SOC values of the power battery and the current vehicle speed value, and switches the working point of the engine according to a certain rule.
Optionally, after the vehicle starts the range extending mode, the method comprises the following steps:
A. when the electric quantity of the power battery meets the condition that the SOC is less than SOC _ high and less than SOC _ low, calculating the current vehicle speed V; if V is larger than or equal to V _ high, starting the range extender to work at a working point 3 corresponding to the heavy load, and providing the required energy for the whole vehicle by the range extender and the power battery; if V _ low is more than V and less than V _ high, the range extender works at a working point 2 corresponding to the medium load, and the range extender and the power battery jointly provide required energy for the whole vehicle; if V is less than V _ low, the range extender works at a working point 1 corresponding to light load, and the range extender and the power battery jointly provide required energy for the whole vehicle;
B. when the electric quantity of the power battery meets the condition that the electric quantity is less than SOC _ low, calculating the current vehicle speed V; if V is larger than or equal to V _ low, the range extender works at a working point 3 corresponding to the heavy load, the power battery does not provide energy for the whole vehicle any more, and the range extender provides the required energy for the whole vehicle independently; if V is less than V _ low, the range extender works at the working point 2 corresponding to the medium load, the power battery does not provide energy for the whole vehicle any more, and the range extender provides the required energy for the whole vehicle independently.
Further, in the step S2, SOC _ high is 30% -40% of the total electric quantity of the power battery, SOC _ low is 10% of the total electric quantity of the power battery, SOC _ min is 5% -10% of the total electric quantity of the power battery, V _ high is 70-80km/h, and V _ low is 40-50 km/h.
Further, in step S4, the C-evicm system includes a vehicle-mounted entire vehicle charging management system and a charging station charging management system connected by wireless communication; and the C-EVICMS searches peripheral charging stations, and judges whether suitable charging stations exist at the periphery or not by analyzing the charging station distance, the model of the rechargeable battery and the charging pile service condition data.
Further, the step S5 of calculating the driving energy consumption includes the following processes:
A. dividing the distance to the selected charging station into a plurality of sections according to road conditions;
B. dividing each distance by the average speed of the corresponding road condition to obtain the running time of each distance;
C. calculating the average running power according to the average speed of each route, and multiplying the average running power by the running time of each route to obtain the running energy consumption of each route;
D. and adding the energy consumption of each section to obtain the running energy consumption of the selected charging station.
The technical scheme of the invention has the obvious advantages that:
1. when the SOC of the power battery reaches a certain range, the invention reminds a driver to charge, and makes a series of flows and strategies to assist the driver in charging, so that the extended range electric automobile can fully utilize clean and cheap electric energy in a power grid in the running process, thereby greatly reducing the running cost of the whole automobile and improving the economy of the whole automobile;
2. the invention reduces the range-extending mode starting time of the range-extending electric automobile, improves the emission performance of the whole automobile, improves the urban air quality to a certain extent, and better corresponds to the national policy of energy conservation and emission reduction.
Drawings
FIG. 1 is a flowchart illustrating a method for controlling energy management of an extended range electric vehicle based on charging management according to the present invention;
FIG. 2 is a control flow diagram of a multi-operating-point control strategy in step one of the present invention;
fig. 3 is a flowchart of calculating the driving energy consumption to the selected charging station in step S5 according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and specific embodiments.
The invention provides a charging management-based extended range electric vehicle energy management control method, and the design flow of the method refers to fig. 1 and fig. 2, and the method comprises the following steps:
the method comprises the following steps: establishing a multi-working-point energy control strategy framework
S1: according to the power requirement of the whole vehicle and referring to the universal characteristic curve diagram of the engine, respectively selecting a working point when the engine is in a light load state, a medium load state and a high load state, and respectively defining the selected three working points as a working point 1, a working point 2 and a working point 3 of the range extender;
s2: setting two battery SOC (State of Chagre) trigger points SOC _ high and SOC _ low and a minimum SOC node value SOC _ min of the battery under the condition of not damaging the service life of the battery according to the performance of the power battery; according to the power performance of the whole vehicle, two vehicle speed trigger points V _ high and V _ low are set, and energy distribution is carried out on the whole vehicle under different loads according to the parameters;
s3: when the electric quantity of the power battery meets the condition that the SOC is more than or equal to SOC _ high, the power battery provides required energy for the whole vehicle at any speed;
when the current SOC is less than SOC _ high, the whole vehicle charging management system prompts a driver of a charging requirement, then the driver selects whether to charge according to the self condition, and if the driver selects charging, the vehicle is charged according to a set charging flow; if the temporary non-charging mode is selected, the whole vehicle starts a range extending mode, and the control strategy after starting is as follows:
A. when the electric quantity of the power battery meets the condition that the SOC is less than SOC and less than SOC _ high when the SOC _ low is more than or equal to SOC _ high, the current vehicle speed V is calculated, if the V is more than or equal to V _ high, the range extender is started to work at a working point 3 corresponding to the heavy load, and the range extender and the power battery jointly provide required energy for the whole vehicle; if V _ low is more than V and less than V _ high, the range extender works at a working point 2 corresponding to the medium load, and the range extender and the power battery jointly provide required energy for the whole vehicle; if V is less than V _ low, the range extender works at a working point 1 corresponding to light load, and the range extender and the power battery jointly provide required energy for the whole vehicle;
B. when the electric quantity of the power battery meets the condition that the electric quantity of the power battery is less than SOC _ low, the current vehicle speed V also needs to be calculated, if the V is more than or equal to V _ low, the range extender works at a working point 3 corresponding to the heavy load, the power battery does not provide energy for the whole vehicle any more, and the range extender provides required energy for the whole vehicle independently; if V is less than V _ low, the range extender works at the working point 2 corresponding to the medium load, the power battery does not provide energy for the whole vehicle any more, and the range extender provides the required energy for the whole vehicle independently.
Preferably, the 3 operating points in the step S1 are all corresponding optimal fuel economy points.
Preferably, the SOC _ high in the step S2 generally takes 30% to 40% of the total electric quantity of the power battery, the SOC _ low generally takes about 10% of the total electric quantity of the power battery, and the SOC _ min generally takes 5% to 10% of the total electric quantity of the power battery, which needs to be selected with reference to specific performance characteristics of the battery.
Preferably, the V _ high in the step S2 is generally 70-80km/h, the V _ low is generally 40-50km/h, and the V _ high and the V _ low are selected according to the specific dynamic performance characteristics of the whole vehicle.
Step two: charging the whole vehicle under the control of a charging facility-electric vehicle intelligent coordination management system (C-EVICMS) (namely, the operation step after the driver selects charging in the step one)
S4: C-EVICMS judges whether there is a proper charging station
The system is divided into two parts, namely a vehicle-mounted whole vehicle charging management system and a charging management system of a charging station, and the two parts are used for data and information transmission through a wireless network. The system searches for peripheral charging stations, judges whether suitable charging stations exist at the periphery or not by analyzing data such as charging station distance, rechargeable battery model, charging pile use condition and the like, comprehensively selects the most suitable charging station if suitable charging stations exist, and continues the charging step; if the charging station is not suitable for the charging station, the range extender is directly started, the whole vehicle enters a range extension mode, energy is reasonably distributed through a multi-working-point control strategy, and the whole vehicle is driven to run;
s5: calculating the travel energy consumption of the selected charging station
The method comprises the following 4 sub-steps:
A. dividing the distance to the selected charging station into a plurality of sections according to road conditions;
B. dividing each distance by the average speed of the corresponding road condition (obtained by the speed of a floating car in an ITS system) to obtain the running time of each distance;
C. calculating the average running power according to the average speed of each route, and multiplying the average running power by the running time of each route to obtain the running energy consumption of each route;
D. adding the energy consumption of each section to obtain the running energy consumption of the selected charging station;
please refer to fig. 3 for a specific control flow chart designed in this step.
S6: judging whether the automobile can reach the selected charging station before the SOC is reduced to SOC _ min:
and the whole vehicle charging management system judges whether the vehicle can reach the selected charging station before the SOC is reduced to the SOC _ min according to the battery capacity and the running energy consumption calculated in the step S6. If yes, the power battery drives the whole vehicle independently until the vehicle reaches a charging station; if not, the power battery drives the whole vehicle independently until the SOC reaches the SOC _ min, then the range extending mode is started, and the SOC value is maintained until the selected charging station is reached.
Particularly, when the current SOC is less than SOC _ high, even if the driver temporarily does not select charging according to the current situation, or the entire vehicle enters the range-extending mode (i.e., the energy distribution stage is coordinated by the multi-operating-point control strategy) because there is no suitable charging station around the vehicle, the vehicle charging system also needs to select an appropriate time to charge as soon as possible, and the vehicle charging system can remind the driver to charge again at different time periods, so as to ensure that clean and cheap electric energy in the power grid is fully utilized in the entire vehicle running process, thereby reducing fuel consumption and improving emission performance.
The invention has the following innovation points:
1. the invention reminds the driver to charge in due time and makes a series of flows and strategies to assist the driver to charge, so that the stroke-increasing electric automobile can fully utilize clean and cheap electric energy in a power grid in the driving process, and the economy and emission performance of the stroke-increasing electric automobile are optimal;
2. the charging management related strategy is combined with the multi-working-point control strategy, so that the range-extended electric automobile can increase the electric energy utilization rate, control the fuel consumption after the range-extended mode is started, ensure the service life of a battery and improve the performance of the whole automobile to a certain extent.
Claims (6)
1. An extended range electric vehicle energy management control method based on charging management is characterized by comprising the following steps:
step one, establishing a multi-working-point energy control strategy framework:
s1: according to the power requirement of the whole vehicle and referring to the universal characteristic curve diagram of the engine, respectively selecting a working point when the engine is in a light load state, a medium load state and a high load state, and respectively defining the selected three working points as a working point 1, a working point 2 and a working point 3 of the range extender;
s2: setting two battery SOC trigger points, namely SOC _ high and SOC _ low, and setting a minimum SOC node value of the battery, namely SOC _ min, under the condition of not damaging the service life of the battery according to the performance of the power battery; setting two vehicle speed trigger points, namely V _ high and V _ low, according to the power performance of the whole vehicle; the parameters are used for distributing energy of the whole vehicle under different loads;
s3: judging whether the vehicle needs to be charged according to the current SOC value of the battery and selecting the vehicle to a driver through charging; judging whether a whole vehicle range extending mode is started or not according to a charging selection result of a driver; if the whole vehicle starts the range extending mode, the charging management system switches the working point of the engine according to different power battery SOC values and the current vehicle speed value and by taking the battery SOC trigger point and the vehicle speed trigger point selected in the step S2 as references, and performs energy distribution on the whole vehicle under different loads;
step two: when the driver selects to charge the vehicle in step S3, the entire vehicle is charged under the control of the C-EVICMS:
s4: the C-EVICMS system judges whether a proper charging station exists or not, and if the proper charging station exists, the charging station is selected and the charging step is continued; if the charging station is not suitable for the charging station, the range extender is directly started, the whole vehicle enters a range extension mode, energy is reasonably distributed through a multi-working-point control strategy, and the whole vehicle is driven to run;
s5: calculating the running energy consumption of the vehicle to the selected charging station;
s6: the whole vehicle charging management system judges whether the vehicle can reach the selected charging station before the SOC is reduced to SOC _ min through the battery capacity and the driving energy consumption calculated in the step S5; if the vehicle can arrive, the power battery drives the whole vehicle independently until the vehicle reaches a charging station; if the SOC value cannot reach the SOC value, the whole vehicle is driven by the power battery alone until the SOC reaches the SOC _ min, then the range extending mode is started, and the SOC value is maintained until the SOC value reaches the selected charging station.
2. The energy management control method for the extended-range electric vehicle based on charge management of claim 1, wherein the step S3 comprises the following steps:
when the current battery SOC is more than or equal to SOC _ high, the whole vehicle is independently powered by the power battery no matter how the vehicle speed is, the range extender is not started, and the engine does not work;
when the current battery SOC is smaller than SOC _ high, the whole vehicle charging management system prompts a driver of a charging requirement, and if the driver selects charging, the vehicle is charged according to a set charging process; if the driver selects not to charge temporarily, the whole vehicle starts a range extending mode, the charging management system compares the set SOC trigger point and the set vehicle speed trigger point according to different SOC values of the power battery and the current vehicle speed value, and switches the working point of the engine according to a certain rule.
3. The energy management control method for the extended-range electric vehicle based on the charge management as claimed in claim 2, wherein after the vehicle starts the extended-range mode, the method comprises the following steps:
A. when the electric quantity of the power battery meets the condition that the SOC is less than SOC _ high and less than SOC _ low, calculating the current vehicle speed V; if V is larger than or equal to V _ high, starting the range extender to work at a working point 3 corresponding to the heavy load, and providing the required energy for the whole vehicle by the range extender and the power battery; if V _ low is more than V and less than V _ high, the range extender works at a working point 2 corresponding to the medium load, and the range extender and the power battery jointly provide required energy for the whole vehicle; if V is less than V _ low, the range extender works at a working point 1 corresponding to light load, and the range extender and the power battery jointly provide required energy for the whole vehicle;
B. when the electric quantity of the power battery meets the condition that the electric quantity is less than SOC _ low, calculating the current vehicle speed V; if V is larger than or equal to V _ low, the range extender works at a working point 3 corresponding to the heavy load, the power battery does not provide energy for the whole vehicle any more, and the range extender provides the required energy for the whole vehicle independently; if V is less than V _ low, the range extender works at the working point 2 corresponding to the medium load, the power battery does not provide energy for the whole vehicle any more, and the range extender provides the required energy for the whole vehicle independently.
4. The energy management and control method for extended range electric vehicle based on charging management as claimed in claim 1, wherein in step S2, SOC _ high is 30% -40% of total electric quantity of the power battery, SOC _ low is 10% of total electric quantity of the power battery, SOC _ min is 5% -10% of total electric quantity of the power battery, V _ high is 70-80km/h, and V _ low is 40-50 km/h.
5. The energy management control method according to claim 1, wherein in step S4, the C-EVICMS system includes a vehicle charging management system and a charging station charging management system connected via wireless communication; and the C-EVICMS searches peripheral charging stations, and judges whether suitable charging stations exist at the periphery or not by analyzing the charging station distance, the model of the rechargeable battery and the charging pile service condition data.
6. The energy management and control method for the extended-range electric vehicle based on charge management as claimed in claim 1, wherein the step S5 of calculating the energy consumption for driving comprises the following steps:
A. dividing the distance to the selected charging station into a plurality of sections according to road conditions;
B. dividing each distance by the average speed of the corresponding road condition to obtain the running time of each distance;
C. calculating the average running power according to the average speed of each route, and multiplying the average running power by the running time of each route to obtain the running energy consumption of each route;
D. and adding the energy consumption of each section to obtain the running energy consumption of the selected charging station.
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| CN114161950A (en) * | 2021-11-25 | 2022-03-11 | 阿尔特汽车技术股份有限公司 | Vehicle battery power supplementing method and system and vehicle |
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