CN113183947B - Range-extended electric vehicle, control method and device thereof, and storage medium - Google Patents
Range-extended electric vehicle, control method and device thereof, and storage medium Download PDFInfo
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- CN113183947B CN113183947B CN202110544310.XA CN202110544310A CN113183947B CN 113183947 B CN113183947 B CN 113183947B CN 202110544310 A CN202110544310 A CN 202110544310A CN 113183947 B CN113183947 B CN 113183947B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/20—Control strategies involving selection of hybrid configuration, e.g. selection between series or parallel configuration
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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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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Abstract
The invention discloses an extended range electric automobile, a control method and a control device thereof, and a storage medium, wherein the control method comprises the following steps: acquiring position information of the electric automobile; judging whether the electric automobile is in a preset road section or not according to the position information; if the electric automobile is in the preset road section, acquiring the required power of the whole automobile corresponding to the preset road section; and in a preset road section, acquiring a power difference value between the required power of the whole vehicle and the current allowable discharge power of a power battery of the electric vehicle, and controlling a range extender of the electric vehicle to continuously operate according to the power difference value. From this, when judging according to electric automobile's positional information that electric automobile is in predetermineeing the highway section, control electric automobile's range extender is according to the power difference and continuously moves to, avoid the range extender frequently to open and stop, reduce the oil consumption, promote the reliability and the stability of range extender electric automobile.
Description
Technical Field
The invention relates to the technical field of electric automobiles, in particular to a control method of a range-extended electric automobile, a control device of the range-extended electric automobile, a computer readable storage medium and the range-extended automobile.
Background
At present, the oil consumption of the extended range electric vehicle can be reduced to a certain extent by optimizing a system structure, an electrical architecture, optimizing the control of an extended range device and the like.
However, the single-point power generation and multi-point power generation control techniques in the related art are mature, the fuel consumption cannot be further reduced, and the battery state can cause frequent start and stop of the range extender in the driving process due to the change of parameters such as driving conditions, road conditions and electric quantity, so that great loss is caused to the fuel consumption, and the stability and the reliability of the range-extended electric vehicle are not facilitated.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, a first objective of the present invention is to provide a control method for a range-extended electric vehicle, which can prevent frequent start and stop of a range extender, reduce oil consumption, and improve reliability and stability of the range-extended electric vehicle.
A second object of the invention is to propose a computer-readable storage medium.
The third objective of the present invention is to provide a control device for an extended range electric vehicle.
The fourth objective of the present invention is to provide an extended range electric vehicle.
To achieve the above object, a control method for an extended range electric vehicle according to an embodiment of the first aspect of the present invention includes the following steps: acquiring position information of the electric automobile; judging whether the electric automobile is in a preset road section or not according to the position information; if the electric automobile is located in the preset road section, acquiring the required power of the whole automobile corresponding to the preset road section; and in the preset road section, acquiring a power difference value between the required power of the whole vehicle and the current allowable discharge power of a power battery of the electric vehicle, and controlling a range extender of the electric vehicle to continuously operate according to the power difference value.
According to the control method of the range-extended electric vehicle, the position information of the electric vehicle is obtained, whether the electric vehicle is located in the preset road section or not is judged according to the position information, the required power of the whole vehicle corresponding to the preset road section is obtained when the electric vehicle is located in the preset road section, further, the power difference value between the required power of the whole vehicle and the current allowable discharge power of the power battery of the electric vehicle is obtained in the preset road section, and the range extender of the electric vehicle is controlled to continuously operate according to the power difference value. Therefore, frequent starting and stopping of the range extender are avoided, oil consumption is reduced, and reliability and stability of the range extender electric automobile are improved.
In addition, the control method of the extended range electric vehicle according to the above embodiment of the present invention may further have the following additional technical features:
according to an embodiment of the present invention, the acquiring the required power of the entire vehicle corresponding to the preset road segment includes: and searching and obtaining the finished automobile required power corresponding to the preset road section from a database, wherein the finished automobile required power corresponding to the preset road section is obtained by obtaining the average value of the finished automobile required power of different vehicles in the preset road section within historical preset time.
According to an embodiment of the present invention, the acquiring the required power of the entire vehicle corresponding to the preset road segment further includes: acquiring the congestion condition of the preset road section through real-time map data and/or vehicle-road cooperative data; and adjusting the required power of the whole vehicle corresponding to the preset road section according to the congestion condition.
According to one embodiment of the invention, the preset road section comprises one or more of a flat road section, a ramp road section, a transit road section and a traffic intersection.
According to an embodiment of the present invention, the method for controlling an extended range electric vehicle further includes: if the electric automobile is not in the preset road section, acquiring the driving required power of the driver and the current allowable discharging power of the power battery; and controlling the range extender according to the driving demand power of the driver and the current allowable discharging power of the power battery.
According to an embodiment of the present invention, the method for controlling an extended range electric vehicle further includes: acquiring the driving demand power of the driver in the preset road section; judging whether the driving demand power is larger than a preset power threshold value or not; if the driving demand power is larger than the preset power threshold, controlling the range extender according to the driving demand power of the driver and the current allowable discharging power of the power battery; and if the driving required power is smaller than or equal to the preset power threshold, acquiring a power difference value between the required power of the whole vehicle and the current allowable discharge power of a power battery of the electric vehicle, and controlling a range extender of the electric vehicle to continuously operate according to the power difference value.
According to one embodiment of the invention, the acquiring the driving demand power of the driver includes: acquiring the opening degree and the opening degree change rate of an accelerator pedal of the electric automobile; and acquiring the driving demand power of the driver according to the opening degree and the opening degree change rate.
To achieve the above object, a computer readable storage medium is provided in an embodiment of a second aspect of the present invention, on which a control program of an extended range electric vehicle is stored, and the program is executed by a processor to implement the control method of the extended range electric vehicle as described above.
According to the computer-readable storage medium of the embodiment of the invention, the processor executes the control program of the range-extended electric vehicle stored on the processor, and the range extender of the electric vehicle can be controlled to continuously operate according to the power difference value when the electric vehicle is judged to be in the preset road section according to the position information of the electric vehicle, so that the frequent starting and stopping of the range extender are avoided, the oil consumption is reduced, and the reliability and the stability of the range-extended electric vehicle are improved.
To achieve the above object, a control device for an extended range electric vehicle according to a third aspect of the present invention includes: the position acquisition module is used for acquiring the position information of the electric automobile; the judging module is used for judging whether the electric automobile is in a preset road section or not according to the position information; the power acquisition module is used for acquiring the required power of the whole electric vehicle corresponding to the preset road section when the electric vehicle is in the preset road section; and the control module is used for acquiring a power difference value between the required power of the whole vehicle and the current allowable discharge power of a power battery of the electric vehicle in the preset road section, and controlling the range extender of the electric vehicle to continuously operate according to the power difference value.
According to the control device of the range-extended electric vehicle, the position information of the electric vehicle is acquired through the position acquisition module, whether the electric vehicle is located in the preset road section or not is judged through the judgment module according to the position information, the required power of the whole vehicle corresponding to the preset road section is acquired through the power acquisition module when the electric vehicle is located in the preset road section, the power difference value between the required power of the whole vehicle and the current allowable discharge power of the power battery of the electric vehicle is acquired through the control module in the preset road section, and the range extender of the electric vehicle is controlled to continuously operate according to the power difference value. Therefore, frequent starting and stopping of the range extender are avoided, oil consumption is reduced, and reliability and stability of the range extender electric automobile are improved.
To achieve the above object, an extended range electric vehicle according to a fourth aspect of the present invention includes the control device of the extended range electric vehicle as described above.
According to the range-extended electric automobile provided by the embodiment of the invention, by adopting the control device of the range-extended electric automobile, when the electric automobile is judged to be in the preset road section according to the position information of the electric automobile, the range extender of the electric automobile can be controlled to continuously operate according to the power difference, so that the frequent starting and stopping of the range extender are avoided, the oil consumption is reduced, and the reliability and the stability of the range-extended electric automobile are improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a flowchart illustrating a control method of an extended range electric vehicle according to an embodiment of the invention;
FIG. 2 is a flowchart illustrating a method for controlling an extended range electric vehicle according to another embodiment of the present invention;
fig. 3 is a flowchart illustrating a control method of an extended range electric vehicle according to another embodiment of the invention;
FIG. 4 is a block diagram of a control device of an extended range electric vehicle according to an embodiment of the present invention;
fig. 5 is a block diagram of an extended range electric vehicle according to an embodiment of the invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A control method of an extended range electric vehicle, a computer-readable storage medium, a control device of an extended range electric vehicle, and an extended range electric vehicle according to an embodiment of the present invention will be described below with reference to the drawings.
Fig. 1 is a flowchart illustrating a control method of an extended range electric vehicle according to an embodiment of the invention.
As shown in fig. 1, the control method of the extended range electric vehicle includes the following steps:
and S101, acquiring the position information of the electric automobile.
Specifically, the position information of the electric vehicle can be acquired through the vehicle-mounted TBOX or a vehicle controller or other devices (for example, a mobile device (such as a mobile phone, a tablet computer and the like) for information interaction with the extended range electric vehicle).
And S102, judging whether the electric automobile is in a preset road section or not according to the position information.
Alternatively, the preset road segment may include one or more of a flat road segment, a ramp road segment, a transit road segment, and a traffic intersection.
It should be understood that the GPS map may be combined with the location information of the electric vehicle, thereby determining whether the electric vehicle is within the preset section.
S103, if the electric automobile is located in the preset road section, acquiring the required power of the whole automobile corresponding to the preset road section.
It can be understood that different preset road sections correspond to different vehicle demand powers, for example, the vehicle demand power corresponding to the flat road section is 40kw, the vehicle demand power corresponding to the ramp road section is 60kw, and the vehicle demand power corresponding to the transit road section and the traffic intersection is 0 kw.
And S104, acquiring a power difference value between the required power of the whole vehicle and the current allowable discharge power of a power battery of the electric vehicle in a preset road section, and controlling a range extender of the electric vehicle to continuously operate according to the power difference value.
Therefore, in the embodiment of the invention, when the electric automobile is judged to be in the preset road section according to the position information of the electric automobile, the required power of the whole automobile corresponding to the preset road section can be obtained, and the range extender is controlled to continuously operate according to the power difference value between the required power of the whole automobile and the current allowable discharge power of the power battery of the electric automobile, so that the range extender is prevented from being started and stopped frequently, the oil consumption is reduced, and the reliability and the stability of the range-extended electric automobile are improved.
Further, acquiring the required power of the whole vehicle corresponding to the preset road section further comprises: and searching and obtaining the finished automobile required power corresponding to the preset road section from the database, wherein the finished automobile required power corresponding to the preset road section is obtained by obtaining the average value of the finished automobile required power of different vehicles in the preset road section within the historical preset time.
Specifically, through big data analysis, the average value of the total vehicle demand power of different vehicles in the preset road segment within the historical preset time period is obtained to obtain the total vehicle demand power corresponding to the preset road segment, for example, within the historical preset time period, the total vehicle demand power of different vehicles in the preset road segment is P1, P2, … …, and Pn, and then the total vehicle demand power P corresponding to the preset road segment is (P1+ P2+ … … + Pn)/n.
Further, acquiring the required power of the whole vehicle corresponding to the preset road section further comprises: and acquiring the congestion condition of the preset road section through the real-time map data and/or the vehicle-road cooperative data, and adjusting the required power of the whole vehicle corresponding to the preset road section according to the congestion condition.
For example, if the congestion condition of the preset road section is acquired through the real-time map data and/or the vehicle-road cooperative data and is a driving peak stage, the required power of the whole vehicle corresponding to the preset road section can be reduced and adjusted, so that frequent starting and stopping of the range extender is avoided, and if the congestion condition of the preset road section is acquired and is a smooth driving stage, the required power of the whole vehicle corresponding to the preset road section can be improved and adjusted, so that the driving experience of a user is improved.
It should be noted that, since the required power of the whole vehicle corresponding to the transit road section and the traffic intersection is 0kw, the range extender can be controlled to operate according to the idle speed, and therefore, the secondary conversion of energy is reduced.
Further, the control method of the extended range electric vehicle further comprises the following steps: and if the electric automobile is not in the preset road section, acquiring the driving required power of the driver and the current allowable discharging power of the power battery, and controlling the range extender according to the driving required power of the driver and the current allowable discharging power of the power battery.
Alternatively, the driving demand power of the driver may be acquired according to an accelerator opening degree signal, a brake pedal signal, and the like, and the current allowable discharge power of the power battery may be calculated according to the temperature of the power battery, the battery capacity SOC, and the like.
Specifically, in the embodiment of the invention, when the electric vehicle is judged not to be in the preset road section according to the position information of the electric vehicle, the driving required power of the driver and the current allowable discharging power of the power battery can be acquired, and the range extender is controlled to operate according to the power difference between the driving required power of the driver and the current allowable discharging power of the power battery, so that the real-time driving requirement of the driver is met.
Further, as shown in fig. 2, the method for controlling an extended range electric vehicle further includes:
s201, in a preset road section, acquiring driving required power of a driver.
Specifically, acquiring the driving demand power of the driver comprises the following steps: the method comprises the steps of obtaining the opening degree and the opening degree change rate of an accelerator pedal of the electric automobile, and obtaining the driving demand power of a driver according to the opening degree and the opening degree change rate.
It is understood that the greater the opening degree and the rate of change in the opening degree of the accelerator pedal, the greater the driving demand power of the driver.
S202, judging whether the driving demand power is larger than a preset power threshold value.
Optionally, the preset power threshold may be set according to the range extender power of the electric vehicle.
And S203, if the driving required power is larger than the preset power threshold, controlling the range extender according to the driving required power of the driver and the current allowable discharging power of the power battery.
It should be understood that when the driving demand power is greater than the preset power threshold, it may be considered that the extended range electric vehicle has a high power demand, and at this time, the range extender may operate according to the driving demand power of the driver and the current allowable discharge power difference of the power battery, so as to meet the high power demand of the extended range electric vehicle.
And S204, if the driving required power is smaller than or equal to the preset power threshold, acquiring a power difference value between the required power of the whole vehicle and the current allowable discharging power of the power battery of the electric vehicle, and controlling the range extender of the electric vehicle to continuously operate according to the power difference value.
It should be understood that, when the driving required power is less than or equal to the preset power threshold, it may be considered that the extended range electric vehicle has no high power requirement, and at this time, the range extender may continuously operate according to a power difference between the required power of the entire vehicle and the currently allowed discharge power of the power battery of the electric vehicle, so as to avoid frequent start and stop of the range extender, reduce oil consumption, and improve reliability and stability of the extended range electric vehicle.
The following describes a control method of an extended range electric vehicle with reference to the accompanying drawings and embodiments of the present invention.
As shown in fig. 3, after the extended range electric vehicle is powered on and started, step S1 is executed.
And S1, acquiring the current GPS information of the vehicle.
And S2, acquiring the current map information.
S3, judging that the current vehicle is located in a preset road section in the map, and if the current vehicle is located in the preset road section, calling the whole vehicle required power of the current road section; and if the current driving demand power is not in the preset road section, acquiring the driving demand power of the current driver.
S4, judging whether the current driver has a high-power requirement, and if so, acquiring the driving required power of the current driver; and if not, the required power of the whole vehicle on the current road section is called.
Specifically, if the required power of the whole vehicle corresponding to the preset road section is searched and obtained from the database, or the congestion condition of the preset road section is obtained through real-time map data and/or vehicle-road cooperative data, and the required power of the whole vehicle corresponding to the preset road section is adjusted according to the congestion condition, the obtained required power of the whole vehicle is a, the current allowable discharge power of the power battery of the electric vehicle is B, in the preset road section, the whole vehicle controller controls the range extender to continuously operate according to the power of (a-B) (taking the preset road section as a ramp road section as an example, the required power of the whole vehicle is 60kw, the current allowable discharge power of the power battery of the electric vehicle is 40kw, and the range extender continuously operates according to the power of 20 kw).
In addition, if the driving demand power is greater than the preset power threshold, for example, the driver has the behavior of stepping on the accelerator suddenly, or the power battery gives an emergency fault alarm, etc., the range extender can be controlled according to the driving demand power of the driver and the current allowable discharge power of the power battery, so as to meet the actual working condition power demand of the range-extended electric vehicle.
In summary, according to the control method of the range-extended electric vehicle in the embodiment of the present invention, the position information of the electric vehicle is obtained, and whether the electric vehicle is located in the preset road segment is determined according to the position information, and when the electric vehicle is located in the preset road segment, the required power of the entire vehicle corresponding to the preset road segment is obtained, and further, in the preset road segment, the power difference between the required power of the entire vehicle and the currently allowed discharge power of the power battery of the electric vehicle is obtained, and the range extender of the electric vehicle is controlled to continuously operate according to the power difference. Therefore, frequent starting and stopping of the range extender are avoided, oil consumption is reduced, and reliability and stability of the range extender electric automobile are improved.
Further, the present invention is based on the control method of the extended range electric vehicle of the foregoing embodiment, and further provides a computer readable storage medium, on which a control program of the extended range electric vehicle is stored, which when executed by a processor implements the specific implementation of the control method of the extended range electric vehicle according to the foregoing embodiment of the present invention.
In summary, according to the computer-readable storage medium of the embodiment of the invention, the processor executes the control program of the range-extended electric vehicle stored thereon, and when it is determined that the electric vehicle is in the preset road section according to the position information of the electric vehicle, the range extender of the electric vehicle is controlled to continuously operate according to the power difference, so that frequent start and stop of the range extender are avoided, the oil consumption is reduced, and the reliability and stability of the range-extended electric vehicle are improved.
Fig. 4 is a block diagram of a control device of an extended range electric vehicle according to an embodiment of the invention.
As shown in fig. 4, the control device 100 for the extended range electric vehicle includes: a position acquisition module 10,
A determination module 20, a power acquisition module 30, and a control module 40.
The position obtaining module 10 is configured to obtain position information of the electric vehicle; the judging module 20 is configured to judge whether the electric vehicle is in a preset road section according to the position information; the power obtaining module 30 is configured to obtain a required power of the entire electric vehicle corresponding to a preset road section when the electric vehicle is located in the preset road section; the control module 40 is configured to obtain a power difference between the power required by the entire vehicle and the currently allowed discharge power of the power battery of the electric vehicle in a preset road section, and control the range extender of the electric vehicle to continuously operate according to the power difference.
It should be noted that, for the specific implementation of the control device of the extended range electric vehicle according to the embodiment of the present invention, reference may be made to the specific implementation of the control method of the extended range electric vehicle according to the foregoing embodiment of the present invention, and details are not repeated.
In summary, according to the control device of the range-extended electric vehicle in the embodiment of the invention, the position information of the electric vehicle is acquired by the position acquisition module, and the determination module determines whether the electric vehicle is in the preset road section according to the position information, further, the power acquisition module acquires the required power of the entire vehicle corresponding to the preset road section when the electric vehicle is in the preset road section, and the control module acquires the power difference between the required power of the entire vehicle and the currently allowed discharge power of the power battery of the electric vehicle in the preset road section, and controls the range extender of the electric vehicle to continuously operate according to the power difference. Therefore, frequent starting and stopping of the range extender are avoided, oil consumption is reduced, and reliability and stability of the range extender electric automobile are improved.
Fig. 5 is a block diagram of an extended range electric vehicle according to an embodiment of the invention.
As shown in fig. 5, the extended range electric vehicle 1000 includes the control device 100 of the extended range electric vehicle described above.
It should be noted that, for a specific implementation of the extended range electric vehicle 1000 according to the embodiment of the present invention, reference may be made to the specific implementation of the control device 100 of the extended range electric vehicle according to the embodiment of the present invention, and in addition, other configurations and functions of the extended range electric vehicle according to the embodiment of the present invention are known to those skilled in the art, and are not described herein again to reduce redundancy.
In summary, according to the extended range electric vehicle provided by the embodiment of the invention, by using the control device of the extended range electric vehicle, when the electric vehicle is judged to be in the preset road section according to the position information of the electric vehicle, the extended range device of the electric vehicle is controlled to continuously operate according to the power difference, so that frequent starting and stopping of the extended range device are avoided, the oil consumption is reduced, and the reliability and stability of the extended range electric vehicle are improved.
It should be noted that the logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (9)
1. A control method of an extended range electric vehicle is characterized by comprising the following steps:
acquiring position information of the electric automobile;
judging whether the electric automobile is in a preset road section or not according to the position information;
if the electric automobile is located in the preset road section, acquiring the required power of the whole automobile corresponding to the preset road section;
in the preset road section, acquiring a power difference value between the required power of the whole vehicle and the current allowable discharge power of a power battery of the electric vehicle, and controlling a range extender of the electric vehicle to continuously operate according to the power difference value; further comprising:
acquiring driving demand power of a driver in the preset road section;
judging whether the driving demand power is larger than a preset power threshold value or not;
if the driving demand power is larger than the preset power threshold, controlling the range extender according to the driving demand power of the driver and the current allowable discharging power of the power battery;
and if the driving required power is smaller than or equal to the preset power threshold, acquiring a power difference value between the required power of the whole vehicle and the current allowable discharge power of a power battery of the electric vehicle, and controlling a range extender of the electric vehicle to continuously operate according to the power difference value.
2. The method for controlling the extended range electric vehicle according to claim 1, wherein the obtaining of the required power of the entire vehicle corresponding to the preset road section comprises:
and searching and obtaining the finished automobile required power corresponding to the preset road section from a database, wherein the finished automobile required power corresponding to the preset road section is obtained by obtaining the average value of the finished automobile required power of different vehicles in the preset road section within historical preset time.
3. The method for controlling the extended range electric vehicle according to claim 2, wherein the obtaining of the required power of the entire vehicle corresponding to the preset road section further comprises:
acquiring the congestion condition of the preset road section through real-time map data and/or vehicle-road cooperative data;
and adjusting the required power of the whole vehicle corresponding to the preset road section according to the congestion condition.
4. The control method of the extended range electric vehicle of claim 1, wherein the preset road segment comprises one or more of a flat road segment, a ramp road segment, a transit road segment, and a traffic intersection.
5. The control method of the extended range electric vehicle according to any one of claims 1 to 4, characterized by further comprising:
if the electric automobile is not in the preset road section, acquiring the driving required power of the driver and the current allowable discharging power of the power battery;
and controlling the range extender according to the driving demand power of the driver and the current allowable discharging power of the power battery.
6. The control method of the extended range electric vehicle according to claim 1, wherein the obtaining of the driving demand power of the driver includes:
acquiring the opening degree and the opening degree change rate of an accelerator pedal of the electric automobile;
and acquiring the driving demand power of the driver according to the opening degree and the opening degree change rate.
7. A computer-readable storage medium, on which a control program of an extended range electric vehicle is stored, the control program of the extended range electric vehicle implementing the control method of the extended range electric vehicle according to any one of claims 1 to 6 when executed by a processor.
8. A control device of an extended range electric vehicle, characterized in that the control device is configured to implement the control method of the extended range electric vehicle according to any one of claims 1 to 6, and comprises:
the position acquisition module is used for acquiring the position information of the electric automobile;
the judging module is used for judging whether the electric automobile is in a preset road section or not according to the position information;
the power acquisition module is used for acquiring the required power of the whole electric vehicle corresponding to the preset road section when the electric vehicle is in the preset road section;
and the control module is used for acquiring a power difference value between the required power of the whole vehicle and the current allowable discharge power of a power battery of the electric vehicle in the preset road section, and controlling the range extender of the electric vehicle to continuously operate according to the power difference value.
9. An extended range electric vehicle characterized by comprising the control device of the extended range electric vehicle according to claim 8.
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