CN118025124A - Energy control method and device of range extender, electronic equipment and storage medium - Google Patents
Energy control method and device of range extender, electronic equipment and storage medium Download PDFInfo
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Abstract
The application discloses an energy control method, an energy control device, electronic equipment and a storage medium of a range extender, wherein the method and the energy control device are applied to the electronic equipment of the range extender, and particularly judge the whole vehicle required power of a vehicle provided with the range extender so as to determine whether the whole vehicle required power exceeds a preset power threshold; when the required power of the whole vehicle is not judged to exceed the power threshold, controlling the engine of the range extender to run based on a constant power mode; and when the whole vehicle required power exceeds the power threshold, controlling the engine to run based on the multipoint power following mode. According to the scheme, the engine working point can be enabled to always operate in the optimal economic zone on the basis of meeting the power requirement of the whole vehicle, so that the fuel consumption of the engine can be reduced as much as possible.
Description
Technical Field
The present application relates to the field of vehicle technologies, and in particular, to an energy control method and apparatus for a range extender, an electronic device, and a storage medium.
Background
The four future development directions of the automobile comprise four types of pure electric, hybrid power, fuel cells, intelligent network automobiles and the like. The pure electric vehicle has obvious environmental protection advantages, but is limited by battery technology, and has the problems of short driving mileage, high cost, limited battery life and the like. The hybrid electric vehicle combines the internal combustion engine, the battery and the energy storage device together, not only can fully exert the low-emission advantage of the electric vehicle, but also has the high power density of the internal combustion engine, and is a mature technical route in the future.
The range-extending electric automobile is additionally provided with a small auxiliary power generation device, namely a range extender, on the basis of the pure electric automobile, and when the electric quantity of the battery is insufficient, the range extender provides power for maintaining running of the whole automobile or supplements the electric quantity for the battery. The range extender electric automobile is used as a typical representative of a strong hybrid vehicle type, wheels are directly driven by an electric motor to run, and an engine of the range extender is not mechanically connected with the wheels, so that the working point of the engine of the range extender is separated from the working condition limit, and the optimal control of the fuel consumption of the engine is facilitated.
The engine of the range extender is not directly connected with the wheel mechanical transmission system, so that the engine can be set to work in an optimal efficiency area, and the output of the engine can be flexibly controlled according to the required power, so that the range extender can be ensured to work in the high-efficiency areas of the engine and the generator at the same time, and the optimization of the fuel economy of the whole vehicle is realized.
The energy management of the extended range electric automobile is a core, and the power output between the engine and the battery is distributed on the premise of meeting the power demand of the whole automobile through the energy management. The energy control strategies commonly used at present are: when the SOC of the battery reaches a preset SOC lower limit value, the range extender starts and controls the engine to output at a set working point according to constant power, and one part of the output power is used for driving the motor, and the other part of the output power supplements power for the battery. When the SOC of the battery is raised to a preset SOC upper limit value, the range extender turns off the engine or controls the engine to run in an idle state, so that the SOC is always kept between the set upper limit value and the set lower limit value. In the energy management mode, the working point of the engine is improved due to the fact that the real-time oil saving effect of the engine is excessively pursued, the battery is ignored to lose more transmission power for driving the whole vehicle at the next moment, and the fuel consumption is increased unnecessarily in the mode.
Disclosure of Invention
In view of the above, the present application provides an energy control method, an apparatus, an electronic device and a storage medium for a range extender, which are used for improving the fuel saving effect of the whole vehicle.
In order to achieve the above object, the following solutions have been proposed:
an energy control method of a range extender, which is applied to electronic equipment of the range extender, comprises the following steps:
judging the whole vehicle required power of a vehicle configured with the range extender to determine whether the whole vehicle required power exceeds the preset power threshold;
When the whole vehicle required power is judged not to exceed the power threshold, controlling the engine of the range extender to run based on a constant power mode;
and when the whole vehicle required power is judged to exceed the power threshold, controlling the engine to run based on a multipoint power following mode.
Optionally, the controlling the engine of the range extender based on the constant power mode includes the steps of:
and controlling the engine to work at a first power point, wherein the first power point is in an economic zone of the engine.
Optionally, the controlling the engine to run based on the multi-point power following mode includes the steps of:
selecting one of a plurality of second power points in the economic zone as a current power point based on the whole vehicle required power;
and controlling the engine to work at the current power point.
Optionally, one of the plurality of second power points coincides with the first power point.
An energy control device of a range extender, applied to an electronic device of the range extender, the energy control device comprising:
The power judging module is configured to judge the whole vehicle required power of the vehicle configured with the range extender so as to determine whether the whole vehicle required power exceeds the preset power threshold;
The first control module is configured to control the engine of the range extender to run based on a constant power mode when the required power of the whole vehicle is judged not to exceed the power threshold;
And the second control module is configured to control the engine to run based on a multi-point power following mode when the whole vehicle required power is judged to exceed the power threshold.
Optionally, the first control module includes:
And a constant power control unit configured to control operation of the engine at a first power point, the first power point being in an economy zone of the engine.
Optionally, the second control module includes:
A power point selection unit configured to select one from a plurality of second power points in the economy area as a current power point based on the vehicle-required power;
And a power following control unit configured to control the engine to operate at the current power point.
Optionally, one of the plurality of second power points coincides with the first power point.
An electronic device for use with a range extender of a vehicle, the electronic device comprising at least one processor and a memory coupled to the processor, wherein:
The memory is used for storing a computer program or instructions;
the processor is configured to execute the computer program or instructions to cause the electronic device to implement the energy control method as described above.
A storage medium for application to an electronic device, the storage medium carrying one or more computer programs executable by the electronic device to cause the electronic device to implement an energy control method as described above.
As can be seen from the above technical solution, the present application discloses an energy control method, apparatus, electronic device and storage medium for a range extender, where the method and apparatus are applied to the electronic device of the range extender, specifically, determine the required power of the whole vehicle of the vehicle configured with the range extender, so as to determine whether the required power of the whole vehicle exceeds a preset power threshold; when the required power of the whole vehicle is not judged to exceed the power threshold, controlling the engine of the range extender to run based on a constant power mode; and when the whole vehicle required power exceeds the power threshold, controlling the engine to run based on the multipoint power following mode. According to the scheme, the engine working point can be enabled to always operate in the optimal economic zone on the basis of meeting the power requirement of the whole vehicle, so that the fuel consumption of the engine can be reduced as much as possible.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for controlling energy of a range extender according to an embodiment of the present application;
FIG. 2 is a schematic illustration of an economy zone and a plurality of operating points of an engine according to an embodiment of the present application;
FIG. 3 is a block diagram of an energy control device of a range extender according to an embodiment of the present application;
FIG. 4 is a block diagram of an energy control device of another range extender according to an embodiment of the present application;
fig. 5 is a block diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Fig. 1 is a flowchart of an energy control method of a range extender according to an embodiment of the present application.
The energy control method is applied to the electronic equipment with the range extender and is used for controlling the range extender, in particular to controlling an engine of the range extender. Range extenders generally include an engine, a generator coupled to the engine, and a controller for controlling the engine/generator, as well as other auxiliary components or elements. The electronic device may be a server, PC, PAD, cell phone, ECU, VCU, MCU, HCU, etc. having data processing and information processing capabilities.
As shown in fig. 1, the energy control method of the present application is applied to a scenario where the range extender is started, that is, in a case where the SOC of the battery of the vehicle is lower than a preset threshold, the range extender of the vehicle is started, and at this time, the following control steps are performed:
S1, judging whether the required power of the whole vehicle exceeds a power threshold value.
And judging whether the whole vehicle required power of the vehicle with the range extender exceeds a preset power threshold. The whole vehicle demand power of the vehicle comprises the input power of the motor, the required power of the vehicle electronic equipment and the like. The power threshold may be determined by bench testing the vehicle or may be adjusted based on the user's experience in actual use. Specifically, a certain adjustment means may be provided for the user, and when the user inputs a threshold adjustment instruction, the preset is adjusted based on the value input by the user or the adjustment request.
Through the judgment of the required power of the whole vehicle, whether the required power of the whole vehicle is larger than the power threshold value can be determined. And if the required power of the whole vehicle is not greater than the power threshold, executing the engine control scheme of the subsequent step S2, otherwise, executing the engine control scheme of the subsequent step S3 if the required power of the whole vehicle exceeds the power threshold.
S2, controlling the engine to run based on a constant power mode.
And when the required power of the whole vehicle is not larger than the power threshold value, the engine in the range extender is controlled based on a constant power mode. The specific control method comprises the following steps:
The engine is controlled to operate at a first power point n b selected from within the economy zone P of the engine as shown in fig. 2, at which time the output power of the engine is unchanged. The economy zone of an engine refers to the operating zone of the engine where the engine is at its optimum speed and torque under certain operating conditions, for which the fuel efficiency is optimal.
And S3, controlling the engine to run based on the multipoint power following mode.
When the required power of the whole vehicle exceeds the power threshold value, the engine in the range extender is controlled based on the multipoint power following mode. The scheme of the application is that a plurality of second power points are selected in the economic zone P, and based on the second power points, the control method in the multipoint power following mode comprises the following steps:
Firstly, selecting one power point from the plurality of second power points as a current power point, wherein the current power point is matched with the required power of the whole vehicle. The second power point may also be selected by bench testing the engine.
The engine power is then controlled at the current power point. It can be seen here that the current operating point is not a constant value as it varies between different second power points. In addition, the second power point in the present application includes the first power point. For example, as shown in fig. 2, the first power point is n b, and the second power point includes n a、nb and n c, where n b is both the first power point and the second power point.
As can be seen from the above technical solution, the present embodiment provides an energy control method of a range extender, where the method is applied to an electronic device of the range extender, specifically, determines a vehicle required power of a vehicle configured with the range extender, so as to determine whether the vehicle required power exceeds a preset power threshold; when the required power of the whole vehicle is not judged to exceed the power threshold, controlling the engine of the range extender to run based on a constant power mode; and when the whole vehicle required power exceeds the power threshold, controlling the engine to run based on the multipoint power following mode. According to the scheme, the engine working point can be enabled to always operate in the optimal economic zone on the basis of meeting the power requirement of the whole vehicle, so that the fuel consumption of the engine can be reduced as much as possible.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Although operations are depicted in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order. In certain circumstances, multitasking and parallel processing may be advantageous.
It should be understood that the various steps recited in the method embodiments of the present disclosure may be performed in a different order and/or performed in parallel. Furthermore, method embodiments may include additional steps and/or omit performing the illustrated steps. The scope of the present disclosure is not limited in this respect.
Computer program code for carrying out operations of the present disclosure may be written in one or more programming languages, including, but not limited to, an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the C-language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of remote computers, the remote computer may be connected to the user computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer.
Fig. 3 is a block diagram of an energy control device of a range extender according to an embodiment of the present application.
As shown in fig. 3, the energy control of the present application includes a power judgment module 10, a first control module 20, and a second control module 30.
The power judging module is used for judging the whole vehicle required power of the vehicle.
And judging whether the whole vehicle required power of the vehicle with the range extender exceeds a preset power threshold. The whole vehicle demand power of the vehicle comprises the input power of the motor, the required power of the vehicle electronic equipment and the like. The power threshold may be determined by bench testing the vehicle or may be adjusted based on the user's experience in actual use. Specifically, a certain adjustment means may be provided for the user, and when the user inputs a threshold adjustment instruction, the preset is adjusted based on the value input by the user or the adjustment request.
Through the judgment of the required power of the whole vehicle, whether the required power of the whole vehicle is larger than the power threshold value can be determined.
The first control module is used for controlling the engine to run based on a constant power mode under the condition that the power required by the whole vehicle does not exceed the power threshold.
When the power judgment module judges that the required power of the whole vehicle is not greater than the power threshold, the first control module controls the engine in the range extender based on a constant power mode. The module comprises in particular a constant power control unit 21, as shown in fig. 4.
The constant power control unit is used to control the engine to operate at a first power point n b selected from the economy zone P of the engine as shown in fig. 2, at which time the output power of the engine is unchanged. The economy zone of an engine refers to the operating zone of the engine where the engine is at its optimum speed and torque under certain operating conditions, for which the fuel efficiency is optimal.
The second control module is configured to control engine operation based on the multi-point power following mode.
When the power required by the whole vehicle exceeds the power threshold value, the module controls the engine in the range extender based on the multi-point power following mode. The solution of the present application is to select a plurality of second power points in the above-mentioned economic zone P, based on which the second control module comprises a power point selection unit 31 and a power following control unit 32.
The power point selecting unit is used for selecting one power point from the plurality of second power points as a current power point, and the current power point is matched with the required power of the whole vehicle. The second power point may also be selected by bench testing the engine.
The power following control unit is used for controlling the engine power at the current power point. It can be seen here that the current operating point is not a constant value as it varies between different second power points. In addition, the second power point in the present application includes the first power point. For example, as shown in fig. 2, the first power point is n b, and the second power point includes n a、nb and n c, where n b is both the first power point and the second power point.
As can be seen from the above technical solution, the present embodiment provides an energy control device of a range extender, where the device is applied to an electronic device of the range extender, and is specifically configured to determine a vehicle required power of a vehicle configured with the range extender, so as to determine whether the vehicle required power exceeds a preset power threshold; when the required power of the whole vehicle is not judged to exceed the power threshold, controlling the engine of the range extender to run based on a constant power mode; and when the whole vehicle required power exceeds the power threshold, controlling the engine to run based on the multipoint power following mode. According to the scheme, the engine working point can be enabled to always operate in the optimal economic zone on the basis of meeting the power requirement of the whole vehicle, so that the fuel consumption of the engine can be reduced as much as possible.
The units involved in the embodiments of the present disclosure may be implemented by means of software, or may be implemented by means of hardware. The name of the unit does not in any way constitute a limitation of the unit itself, for example the first acquisition unit may also be described as "unit acquiring at least two internet protocol addresses".
The functions described above herein may be performed, at least in part, by one or more hardware logic components. For example, without limitation, exemplary types of hardware logic components that may be used include: a Field Programmable Gate Array (FPGA), an Application Specific Integrated Circuit (ASIC), an Application Specific Standard Product (ASSP), a system on a chip (SOC), a Complex Programmable Logic Device (CPLD), and the like.
Fig. 5 is a block diagram of an electronic device according to an embodiment of the present application.
Referring to fig. 5, a schematic diagram of a configuration of an electronic device suitable for use in implementing embodiments of the present disclosure is shown. The terminal devices in the embodiments of the present disclosure may include, but are not limited to, mobile terminals such as mobile phones, notebook computers, digital broadcast receivers, PDAs (personal digital assistants), PADs (tablet computers), PMPs (portable multimedia players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and the like, and stationary terminals such as digital TVs, desktop computers, and the like. The electronic device is merely an example and should not impose any limitations on the functionality and scope of use of embodiments of the present disclosure.
The electronic device may include a processing means (e.g., a central processor, a graphics processor, etc.) 501 that may perform various appropriate actions and processes in accordance with programs stored in a read-only memory ROM502 or loaded from an input means 506 into a random access memory RAM 503. In the RAM, various programs and data required for the operation of the electronic device are also stored. The processing device, ROM, and RAM are connected to each other by bus 504. An input/output (I/O) interface 505 is also connected to bus 504.
In general, the following devices may be connected to the I/O interface: input devices including, for example, touch screens, touch pads, keyboards, mice, cameras, microphones, accelerometers, gyroscopes, etc.; an output device 507 including, for example, a Liquid Crystal Display (LCD), a speaker, a vibrator, and the like; storage 508 including, for example, magnetic tape, hard disk, etc.; and communication means 509. The communication means 509 may allow the electronic device to communicate with other devices wirelessly or by wire to exchange data. While an electronic device having various means is shown in the figures, it is to be understood that not all of the illustrated means are required to be implemented or provided. More or fewer devices may be implemented or provided instead.
The present application provides a computer-readable storage medium embodiment.
The storage medium is applied to the electronic equipment and is loaded with one or more computer programs, and when the one or more computer programs are executed by the electronic equipment, the electronic equipment judges the whole vehicle required power of the vehicle configured with the range extender so as to determine whether the whole vehicle required power exceeds a preset power threshold value; when the required power of the whole vehicle is not judged to exceed the power threshold, controlling the engine of the range extender to run based on a constant power mode; and when the whole vehicle required power exceeds the power threshold, controlling the engine to run based on the multipoint power following mode. According to the scheme, the engine working point can be enabled to always operate in the optimal economic zone on the basis of meeting the power requirement of the whole vehicle, so that the fuel consumption of the engine can be reduced as much as possible.
It should be noted that the computer readable medium described in the present disclosure may be a computer readable signal medium or a computer readable storage medium, or any combination of the two. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
In the context of this disclosure, a computer-readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In the present disclosure, however, the computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, with the computer-readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: electrical wires, fiber optic cables, RF (radio frequency), and the like, or any suitable combination of the foregoing.
In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or terminal device that comprises the element.
The foregoing has outlined rather broadly the more detailed description of the invention in order that the detailed description of the invention that follows may be better understood, and in order that the present principles and embodiments may be better understood; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.
Claims (10)
1. The energy control method of the range extender is applied to the electronic equipment of the range extender, and is characterized by comprising the following steps:
Judging the whole vehicle required power of a vehicle configured with the range extender so as to determine whether the whole vehicle required power exceeds a preset power threshold;
When the whole vehicle required power is judged not to exceed the power threshold, controlling the engine of the range extender to run based on a constant power mode;
and when the whole vehicle required power is judged to exceed the power threshold, controlling the engine to run based on a multipoint power following mode.
2. The energy control method of claim 1, wherein said controlling the engine operation of said range extender based on a constant power mode comprises the steps of:
and controlling the engine to work at a first power point, wherein the first power point is in an economic zone of the engine.
3. The energy control method of claim 2, wherein said controlling said engine operation based on a multi-point power following mode comprises the steps of:
selecting one of a plurality of second power points in the economic zone as a current power point based on the whole vehicle required power;
and controlling the engine to work at the current power point.
4. The energy control method of claim 3, wherein one of said second power points of said plurality of second power points coincides with said first power point.
5. An energy control device of a range extender, which is applied to an electronic device of the range extender, characterized in that the energy control device comprises:
the power judging module is configured to judge the whole vehicle required power of the vehicle configured with the range extender so as to determine whether the whole vehicle required power exceeds a preset power threshold value;
The first control module is configured to control the engine of the range extender to run based on a constant power mode when the required power of the whole vehicle is judged not to exceed the power threshold;
And the second control module is configured to control the engine to run based on a multi-point power following mode when the whole vehicle required power is judged to exceed the power threshold.
6. The energy control device of claim 5, wherein the first control module comprises:
And a constant power control unit configured to control operation of the engine at a first power point, the first power point being in an economy zone of the engine.
7. The energy control device of claim 6, wherein the second control module comprises:
A power point selection unit configured to select one from a plurality of second power points in the economy area as a current power point based on the vehicle-required power;
And a power following control unit configured to control the engine to operate at the current power point.
8. The energy control device of claim 7, wherein one of said second power points of said plurality of second power points coincides with said first power point.
9. An electronic device for use in a range extender for a vehicle, the electronic device comprising at least one processor and a memory coupled to the processor, wherein:
The memory is used for storing a computer program or instructions;
The processor is configured to execute the computer program or instructions to cause the electronic device to implement the energy control method according to any one of claims 1 to 4.
10. A storage medium for use in an electronic device, wherein the storage medium carries one or more computer programs executable by the electronic device to cause the electronic device to implement the energy control method of any one of claims 1-4.
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