CN116442985A - Method and device for determining power generation of range extender of vehicle - Google Patents
Method and device for determining power generation of range extender of vehicle Download PDFInfo
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- CN116442985A CN116442985A CN202310360871.3A CN202310360871A CN116442985A CN 116442985 A CN116442985 A CN 116442985A CN 202310360871 A CN202310360871 A CN 202310360871A CN 116442985 A CN116442985 A CN 116442985A
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- 238000000034 method Methods 0.000 title claims abstract description 56
- 238000010248 power generation Methods 0.000 title claims abstract description 34
- 238000004422 calculation algorithm Methods 0.000 claims abstract description 84
- 230000000875 corresponding effect Effects 0.000 description 15
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Classifications
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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
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
- B60W20/15—Control strategies specially adapted for achieving a particular effect
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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
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
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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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Automation & Control Theory (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a method and a device for determining the power generation of a range extender of a vehicle, relates to the technical field of vehicles, and mainly aims to solve the problem that NVH performance of the whole vehicle is poor as the power generation of the range extender is larger. The main technical scheme of the invention is as follows: acquiring a current electric quantity value and a target electric quantity value of a battery when a vehicle runs; determining a target power algorithm based on the current power value and the target power value; and calculating the target power generation power of the range extender based on the target power algorithm so that the range extender works based on the target power generation power. The invention is used for determining the generated power of the range extender of the vehicle.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a method and a device for determining the power generated by a range extender of a vehicle.
Background
The range-extending automobile is a transitional automobile type between a pure electric automobile and a hybrid electric automobile. In general, a range extender automobile adopts a pure electric mode, and when the battery energy is insufficient to provide power, the mode is switched to a fuel mode, namely, the range extender of the automobile drives a generator to generate electric energy and transmit the electric energy to a motor, and then the motor is converted into mechanical energy to drive the automobile to run.
At present, when the range extender automobile is in a fuel mode, the method for determining the power generation power of the range extender depends on the power consumption of the automobile, namely, the power generation power of the range extender is in direct proportion to the power consumption of the automobile so as to maintain the stable electric quantity of the power battery, but when the power consumption of the automobile is high, the power generation power of the range extender is larger, so that the noise, vibration and harshness (Noise, vibration, harshness, NVH) performance of the whole automobile is poor.
Disclosure of Invention
In view of the above problems, the invention provides a method and a device for determining the power generated by a range extender of a vehicle, which mainly aims to solve the problem that the greater the power generated by the range extender is, the poorer the NVH performance of the whole vehicle.
In order to solve the technical problems, the invention provides the following scheme:
in a first aspect, the present invention provides a method for determining a vehicle range extender generated power, the method comprising:
acquiring a current electric quantity value and a target electric quantity value of a battery when a vehicle runs;
determining a target power algorithm based on the current power value and the target power value;
and calculating the target power generation power of the range extender based on the target power algorithm so that the range extender works based on the target power generation power.
In a second aspect, the present invention provides a device for determining the generated power of a range extender of a vehicle, the device comprising:
the acquisition unit is used for acquiring the current electric quantity value and the target electric quantity value of the battery when the vehicle runs;
the determining unit is used for determining a target power algorithm based on the current electric quantity value acquired by the acquiring unit and the target electric quantity value;
and the calculating unit is used for calculating the target power generation power of the range extender based on the target power algorithm determined by the determining unit so that the range extender can work based on the target power generation power.
In order to achieve the above object, according to a third aspect of the present invention, there is provided a storage medium including a stored program, wherein a device in which the storage medium is controlled to execute the above-described method of determining the vehicle range extender generation power of the first aspect when the program runs.
In order to achieve the above object, according to a fourth aspect of the present invention, there is provided a processor for running a program, wherein the program, when run, performs the above-described method of determining the vehicle range extender generation power of the first aspect.
By means of the technical scheme, the method and the device for determining the power generation power of the range extender of the vehicle can firstly obtain the current power value and the target power value when the vehicle runs, then determine the target power algorithm for calculating the target power generation power of the range extender according to the current power value and the target power value, calculate the target power generation power of the range extender according to the target power algorithm, so that the target power algorithm which is not in positive correlation with the power consumption of the vehicle, but determines the target power generation power of the range extender by considering the performance of the battery, and the range extender works under the condition of the target power generation power, so that the problem that the NVH performance of the whole vehicle is poor due to the fact that the larger the power consumption of the vehicle is, is solved, and the NVH performance of the whole vehicle is improved to a certain extent.
The foregoing description is only an overview of the present invention, and is intended to be implemented in accordance with the teachings of the present invention in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present invention more readily apparent.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
FIG. 1 shows a flowchart of a method for determining the power generated by a range extender of a vehicle according to an embodiment of the present invention;
FIG. 2 shows a flowchart of another method for determining the generated power of the range extender of the vehicle according to the embodiment of the invention;
FIG. 3 shows a block diagram of a device for determining the power generated by a range extender of a vehicle according to an embodiment of the present invention;
fig. 4 shows a block diagram of another device for determining the generated power of the range extender of the vehicle according to the embodiment of the invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The range-extending automobile is a transitional automobile type between a pure electric automobile and a hybrid electric automobile. In general, a range extender automobile adopts a pure electric mode, and when the battery energy is insufficient to provide power, the mode is switched to a fuel mode, namely, the range extender of the automobile drives a generator to generate electric energy and transmit the electric energy to a motor, and then the motor is converted into mechanical energy to drive the automobile to run. At present, when the range extender automobile is in a fuel mode, the method for determining the power generation power of the range extender depends on the power consumption of the automobile, namely, the power generation power of the range extender is in direct proportion to the power consumption of the automobile so as to maintain the stable electric quantity of the power battery. Therefore, the invention provides a method for determining the power generated by the range extender of the vehicle, which can solve the problem that the larger the power generated by the range extender is, the worse NVH performance of the whole vehicle is finally caused when the power consumption of the vehicle is large. The specific implementation steps are shown in fig. 1, including:
101. the current electric quantity value and the target electric quantity value of the battery are obtained when the vehicle runs.
When the range extender vehicle runs, the larger the generated power of the range extender is, the larger the generated sound is, the more easily perceived by driving, so that the NVH performance of the vehicle is poorer, the power of the range extender cannot be increased limitlessly, and the power of the range extender needs to be limited to a certain extent according to the specific situation of the current running of the vehicle.
Based on the above description, since the running condition of the extended-range automobile largely depends on the performance of the battery, the current electric power value and the target electric power value of the battery when the vehicle is running can be obtained in this step. Specifically, when the target electric quantity value of the battery is obtained, since the performances of the battery at different temperatures are different, the corresponding target electric quantity values of the battery at different temperatures should also be different. When the target electric quantity value of the battery needs to be obtained, the current temperature of the vehicle battery can be obtained first, and then the target electric quantity value corresponding to the current temperature of the vehicle battery is determined in the preset temperature electric quantity value corresponding relation.
102. A target power algorithm is determined based on the current power value and the target power value.
103. And calculating the target generated power of the range extender based on a target power algorithm.
In step 102, a target power algorithm that best matches the current electric quantity value may be determined by combining the current electric quantity value and the target electric quantity value determined in step 101, so that in step 103, the target power of the range extender may be determined according to the target power algorithm, and when the range extender operates with the target power, the current electric quantity value of the battery may be considered to the greatest extent.
When the target power algorithm is determined, the electric quantity difference value between the current electric quantity value and the target electric quantity value is calculated first, and then the target power algorithm is determined according to the electric quantity difference value. For example, when the current electric quantity value of the battery is detected to be lower than the target electric quantity value, the target power algorithm can set a compensation value to charge the battery, and meanwhile, the range extender charges the battery with smaller power instead of being positively correlated with the consumed power of the vehicle, so that the battery can slowly reach the target electric quantity level, and the driving safety can be ensured.
Based on the implementation manner of fig. 1, it can be seen that the method for determining the power generation power of the range extender of the vehicle provided by the invention can firstly obtain the current power value and the target power value when the vehicle runs, then determine the target power algorithm for calculating the target power generation power of the range extender according to the current power value and the target power value, calculate the target power generation power of the range extender according to the target power algorithm, so that the target power generation power of the range extender is not in positive correlation with the power consumption of the vehicle, consider the performance of the battery, determine the target power algorithm which is most in line with the current power and the target power of the battery to determine the target power generation power of the range extender, and be most beneficial to the performance of the battery when the range extender works under the condition of the target power generation power, thereby solving the problem that the power generation power of the range extender is larger when the power consumption of the vehicle is larger, resulting in poor performance of the vehicle, and improving the NVH performance of the whole vehicle to a certain extent.
Further, as a refinement and expansion of the embodiment shown in fig. 1, the embodiment of the present invention further provides another method for determining the generated power of the range extender of the vehicle, as shown in fig. 2, which specifically includes the following steps:
201. the current electric quantity value and the target electric quantity value of the battery are obtained when the vehicle runs.
The implementation of step 201 is the same as that of step 101, and the same technical effects can be achieved, thereby solving the same technical problems.
202. A target power algorithm is determined based on a power difference between the current power value and the target power value.
In step 202, a difference between a current electric quantity value and a target electric quantity value of the battery can be determined, then a numerical range where the electric quantity difference value is located is determined, and a target power algorithm is determined according to the numerical range. Because the difference value of the electric quantity reflects different current running states of the vehicle in different numerical ranges, and the power generated by the range extender needed by different running states is also different, the target power algorithm needs to be determined according to specific conditions, and the range extender works according to the target power generated by the target power algorithm to control the NVH performance of the vehicle to be optimal. For example, when the current electric quantity value is smaller than the target electric quantity value, the battery electric quantity is considered to be insufficient, and the driving safety is affected, so that a corresponding target power algorithm in the current situation needs to be determined.
Wherein the target electric power value of the battery at each temperature may be a lower value that meets the conventional drivability requirements of the user vehicle.
Specifically, the algorithm for determining the target power according to the numerical range may be divided into five cases, where the first case is: when the difference in the electric quantity is within the first numerical range, the first numerical range may be 20 percent or more, and when the difference in the electric quantity is within the first numerical range, it is indicated that the current electric quantity value of the battery is greater than the target electric quantity value, and the user is equivalent to driving the pure electric vehicle.
When the vehicle is equivalent to driving the pure electric vehicle, the first preset power range can be determined in the corresponding relation between the vehicle speed obtained by testing in advance and the power generated by the range extender, and the first preset power range is the power generated by the range extender corresponding to different vehicle speeds under the condition of driving the pure electric vehicle obtained by testing in advance. If the corresponding relation between the vehicle speed and the power generated by the range extender is compared to form a coordinate graph, different preset power ranges can be regarded as different linear relations on the coordinate graph, the vehicle speed corresponding to the same power can be different in different linear relations, and otherwise, the power corresponding to the same vehicle speed in different linear relations is also different.
Then, it can be determined which of the power values corresponds to the first preset power range, that is, the first preset power value, at the current vehicle speed. And then determining a first target power algorithm according to the first preset power value, wherein the first target power algorithm can be that the target power generation power of the range extender is equal to the first preset power value, so that the NVH performance is better, and compared with the control of directly stopping the range extender, the range extender can realize the long-distance pure electric driving experience feeling driving.
Second case: when the electric quantity difference is within the second numerical value range, the second numerical value range may be greater than or equal to 5 percent and less than 20 percent, at this time, a second preset power range may be determined according to a preset vehicle speed power corresponding relation, then a second preset power value of the range extender is determined according to the current vehicle speed and the second preset power range, in addition, a power consumption of the whole vehicle needs to be obtained, then a second target power algorithm may be determined according to the first preset power value, the second preset power value and the power consumption of the whole vehicle, at this time, the target power algorithm may be that a minimum value is selected between the second preset power value and the power consumption of the whole vehicle, and then a maximum value is selected between the minimum value and the first preset power value, so that when the vehicle decelerates or slides, the range extender still generates electricity with a power which cannot be perceived by a user. Better NVH experience can be realized in the state.
Third case: when the difference value of the electric quantity is within the third numerical range, the difference value at this time may represent that the current electric quantity of the battery approaches the target electric quantity, and for example, less than 5 percent and more than 0 percent may be used to prevent the electric quantity of the battery from further decreasing, the maximum power generation power of the range extender needs to be limited and set to a value capable of maintaining the electric quantity balance under the uniform running condition.
Fourth case: when the electric quantity difference value is in the fourth numerical range, the current electric quantity of the battery can be represented to be lower than the target electric quantity, and the range extender is required to set a compensation value for charging the battery besides supplying the whole vehicle to consume, so that the driving safety can be ensured to a certain extent. Therefore, in this case, the fourth preset power range of the range extender may be obtained first, then the fourth preset power value of the range extender may be determined according to the current speed of the vehicle and the fourth preset power range, then the fourth target power algorithm may be determined according to the second preset power value, the whole vehicle power consumption, the fourth preset power value and the compensation parameter value, the fourth target power algorithm may be a sum between the compensation parameter value and the whole vehicle power consumption, then the minimum power value is determined between the sum value and the fourth preset power value, and then the maximum power value is determined between the minimum power value and the second preset power value.
The fourth preset power value is set to prevent frequent switching of the power generated by the range extender between large and small caused by unstable control of the accelerator by a user or sudden mistaken stepping on the large accelerator, so that the sound of the range extender oscillates back and forth to influence NVH experience.
Finally, in the fifth case that the electric quantity difference value falls within the fifth numerical range, it may be considered that the current electric quantity of the battery is already far smaller than the target electric quantity, or the accelerator opening is detected to be larger than a specified value and last for more than 4s, the specified value may be 95 percent, which is that the fifth target power algorithm may be determined according to the second preset power value, the whole vehicle consumption power and the compensation parameter value. The fifth target power algorithm may be to select a maximum value between the sum value of the whole vehicle consumption power and the compensation parameter value and the second preset power value as the target power generation power of the range extender.
The first preset power range, the second preset power range, the third preset power range and the fourth preset power range are all obtained according to the corresponding relation of the vehicle speed power obtained by testing in advance. Each power range corresponds to a different vehicle driving condition and an electric quantity condition, so when the electric quantity difference value falls in different ranges, the range extender target power is calculated by combining power values in different power ranges.
Therefore, by testing different power ranges of the range extender and the electric quantity conditions suitable for the different power ranges, the invention can select the matched power ranges according to the different electric quantity conditions, thereby determining different algorithms for calculating the power generated by the range extender according to the matched power ranges, and the target power generated by the range extender calculated by the algorithm is most suitable for the current running condition of the vehicle, so that the NVH performance of the whole vehicle can be improved to a certain extent.
203. And calculating the target generated power of the range extender based on a target power algorithm.
The implementation of step 203 is the same as that of step 103, and the same technical effects can be achieved, so that the same technical problems are solved, and the detailed description is not repeated here.
Further, as an implementation of the method shown in fig. 1, the embodiment of the invention further provides a device for determining the power generated by the range extender of the vehicle, which is used for implementing the method shown in fig. 1. The embodiment of the device corresponds to the embodiment of the method, and for convenience of reading, details of the embodiment of the method are not repeated one by one, but it should be clear that the device in the embodiment can correspondingly realize all the details of the embodiment of the method. As shown in fig. 3, the apparatus includes:
an obtaining unit 301, configured to obtain a current electric quantity value and a target electric quantity value of a battery when the vehicle runs;
a determining unit 302, configured to determine a target power algorithm based on the current electric power value acquired by the acquiring unit 301 and the target electric power value;
a calculating unit 303 for calculating a target generated power of the range extender based on the target power algorithm determined by the determining unit 302, so that the range extender operates based on the target generated power.
Further, as an implementation of the method shown in fig. 2, the embodiment of the invention further provides another device for determining the generated power of the range extender of the vehicle, which is used for implementing the method shown in fig. 2. The embodiment of the device corresponds to the embodiment of the method, and for convenience of reading, details of the embodiment of the method are not repeated one by one, but it should be clear that the device in the embodiment can correspondingly realize all the details of the embodiment of the method. As shown in fig. 4, the apparatus includes:
an obtaining unit 301, configured to obtain a current electric quantity value and a target electric quantity value of a battery when the vehicle runs;
a determining unit 302, configured to determine a target power algorithm based on the current electric power value acquired by the acquiring unit 301 and the target electric power value;
a calculating unit 303 for calculating a target generated power of the range extender based on the target power algorithm determined by the determining unit 302, so that the range extender operates based on the target generated power.
In an alternative embodiment, the determining unit 302 includes:
a difference calculation module 3021, configured to calculate a difference between the current electric quantity value and the target electric quantity value;
the algorithm determining module 3022 is configured to determine a target power algorithm based on the power difference value calculated by the difference calculating module 3021.
In an alternative embodiment, the algorithm determination module 3022 includes:
a range determining submodule 30221, configured to determine a numerical range in which the power difference value is located;
an algorithm determination submodule 30222 for determining a target power algorithm based on the numerical range determined by the range determination submodule 30221.
In an alternative embodiment, the algorithm determination submodule 30222 is specifically configured to:
if the electric quantity difference value is in a first numerical range, determining a first preset power value of the range extender, and determining a first target power algorithm through the first preset power value;
if the electric quantity difference value is in a second numerical range, determining a second preset power value of the range extender and the whole vehicle consumption power of the vehicle, so as to determine a second target power algorithm through the first preset power value, the second preset power value and the whole vehicle consumption power;
if the electric quantity difference value is in a third numerical range, determining a third preset power value of the range extender, and determining a third target power algorithm through the second preset power value, the whole vehicle consumption power and the third preset power value;
if the electric quantity difference value is in a fourth numerical range, determining a fourth preset power value and a compensation parameter value of the range extender, so as to determine a fourth target power algorithm through the second preset power value, the whole vehicle consumption power, the fourth preset power value and the compensation parameter value;
and if the electric quantity difference value is in a fifth numerical range, determining a fifth target power algorithm through the second preset power value, the whole vehicle consumption power and the compensation parameter value.
In an alternative embodiment, the algorithm determining submodule 30222 is specifically configured to, when determining the first preset power value of the range extender, determining the second preset power value of the range extender, determining the third preset power value of the range extender, and determining the fourth preset power value of the range extender:
acquiring a preset vehicle speed and power corresponding relation and the current vehicle speed;
determining a first preset power range, a second preset power range, a third preset power range and a fourth preset power range based on the corresponding relation of the preset vehicle speed and the power;
the method comprises the steps of determining a first preset power value of the range extender based on the current speed of the vehicle and the first preset power range, determining a second preset power value of the range extender based on the current speed of the vehicle and the second preset power range, determining a third preset power value of the range extender based on the current speed of the vehicle and the third preset power range, and determining a fourth preset power value of the range extender based on the current speed of the vehicle and the fourth preset power range.
In an alternative embodiment, the algorithm determination submodule 30222 determines a second target power algorithm, determines a third target power algorithm, determines a fourth target power algorithm, and determines a fifth target power algorithm, and is specifically configured to:
determining a first minimum power value between the second preset power value and the whole vehicle consumed power so as to determine a second target power algorithm through the first minimum power value and the first preset power value;
determining a second minimum power value between the third preset power value and the whole vehicle consumed power so as to determine a third target power algorithm through the second minimum power value and the second preset power value;
determining a sum value between the whole vehicle consumption power and the compensation parameter value to determine a fourth target power algorithm through the sum value, the fourth preset power value and the second preset power value;
and determining a fifth target power algorithm based on the sum and the second preset power value.
In an alternative embodiment, the acquiring unit 301 acquires a target electric power value of the battery while the vehicle is running, including:
a temperature acquisition module 3011 for acquiring a current temperature of a vehicle battery;
the target value determining module 3012 is configured to determine, according to a preset temperature and power value correspondence relationship, a target power value corresponding to the current temperature of the vehicle battery acquired by the temperature acquiring module 3011.
Further, an embodiment of the present invention further provides a storage medium, where the storage medium is configured to store a computer program, where the computer program controls a device where the storage medium is located to execute the method for determining the generated power of the range extender of the vehicle described in fig. 1-2 when running.
Further, an embodiment of the present invention further provides a processor, where the processor is configured to execute a program, where the program executes the method for determining the generated power of the range extender of the vehicle described in fig. 1-2.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
It will be appreciated that the relevant features of the methods and apparatus described above may be referenced to one another. In addition, the "first", "second", and the like in the above embodiments are for distinguishing the embodiments, and do not represent the merits and merits of the embodiments.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.
The algorithms and displays presented herein are not inherently related to any particular computer, virtual system, or other apparatus. Various general-purpose systems may also be used with the teachings herein. The required structure for a construction of such a system is apparent from the description above. In addition, the present invention is not directed to any particular programming language. It will be appreciated that the teachings of the present invention described herein may be implemented in a variety of programming languages, and the above description of specific languages is provided for disclosure of enablement and best mode of the present invention.
Furthermore, the memory may include volatile memory, random Access Memory (RAM) and/or nonvolatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM), in a computer readable medium, the memory including at least one memory chip.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In one typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include volatile memory in a computer-readable medium, random Access Memory (RAM) and/or nonvolatile memory, etc., such as Read Only Memory (ROM) or flash RAM. Memory is an example of a computer-readable medium.
Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus 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 apparatus. 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 apparatus that comprises an element.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.
Claims (10)
1. A method for determining the generated power of a range extender of a vehicle, the method comprising:
acquiring a current electric quantity value and a target electric quantity value of a battery when a vehicle runs;
determining a target power algorithm based on the current power value and the target power value;
and calculating the target power generation power of the range extender based on the target power algorithm so that the range extender works based on the target power generation power.
2. The method of claim 1, wherein determining a target power algorithm based on the current power value and the target power value comprises:
calculating an electric quantity difference value between the current electric quantity value and the target electric quantity value;
and determining a target power algorithm based on the power difference.
3. The method of claim 2, wherein determining a target power algorithm based on the charge differential value comprises:
determining a numerical range of the electric quantity difference value;
a target power algorithm is determined based on the range of values.
4. A method according to claim 3, wherein determining a target power algorithm based on the range of values comprises:
if the electric quantity difference value is in a first numerical range, determining a first preset power value of the range extender, and determining a first target power algorithm through the first preset power value;
if the electric quantity difference value is in a second numerical range, determining a second preset power value of the range extender and the whole vehicle consumption power of the vehicle, so as to determine a second target power algorithm through the first preset power value, the second preset power value and the whole vehicle consumption power;
if the electric quantity difference value is in a third numerical range, determining a third preset power value of the range extender, and determining a third target power algorithm through the second preset power value, the whole vehicle consumption power and the third preset power value;
if the electric quantity difference value is in a fourth numerical range, determining a fourth preset power value and a compensation parameter value of the range extender, so as to determine a fourth target power algorithm through the second preset power value, the whole vehicle consumption power, the fourth preset power value and the compensation parameter value;
and if the electric quantity difference value is in a fifth numerical range, determining a fifth target power algorithm through the second preset power value, the whole vehicle consumption power and the compensation parameter value.
5. The method of claim 4, wherein determining a first preset power value for the range extender, determining a second preset power value for the range extender, determining a third preset power value for the range extender, and determining a fourth preset power value for the range extender comprises:
acquiring a preset vehicle speed and power corresponding relation and the current vehicle speed;
determining a first preset power range, a second preset power range, a third preset power range and a fourth preset power range based on the corresponding relation of the preset vehicle speed and the power;
the method comprises the steps of determining a first preset power value of the range extender based on the current speed of the vehicle and the first preset power range, determining a second preset power value of the range extender based on the current speed of the vehicle and the second preset power range, determining a third preset power value of the range extender based on the current speed of the vehicle and the third preset power range, and determining a fourth preset power value of the range extender based on the current speed of the vehicle and the fourth preset power range.
6. The method of claim 4, wherein determining the second target power algorithm, determining the third target power algorithm, determining the fourth target power algorithm, and determining the fifth target power algorithm comprises:
determining a first minimum power value between the second preset power value and the whole vehicle consumed power so as to determine a second target power algorithm through the first minimum power value and the first preset power value;
determining a second minimum power value between the third preset power value and the whole vehicle consumed power so as to determine a third target power algorithm through the second minimum power value and the second preset power value;
determining a sum value between the whole vehicle consumption power and the compensation parameter value to determine a fourth target power algorithm through the sum value, the fourth preset power value and the second preset power value;
and determining a fifth target power algorithm based on the sum and the second preset power value.
7. The method of claim 1, wherein obtaining a target electrical quantity value of the battery while the vehicle is traveling, comprises:
acquiring the current temperature of a vehicle battery;
and determining a target electric quantity value corresponding to the vehicle battery at the current temperature by utilizing a preset temperature electric quantity value corresponding relation.
8. A device for determining the generated power of a range extender of a vehicle, the device comprising:
the acquisition unit is used for acquiring the current electric quantity value and the target electric quantity value of the battery when the vehicle runs;
the determining unit is used for determining a target power algorithm based on the current electric quantity value acquired by the acquiring unit and the target electric quantity value;
and the calculating unit is used for calculating the target power generation power of the range extender based on the target power algorithm determined by the determining unit so that the range extender can work based on the target power generation power.
9. A storage medium comprising a stored program, wherein the program, when run, controls a device in which the storage medium is located to execute the method of determining the vehicle range extender generation power according to any one of claims 1 to 7.
10. A processor for running a program, wherein the program, when run, performs the method of determining the electric power generated by the range extender of the vehicle according to any one of claims 1 to 7.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117755152A (en) * | 2024-02-22 | 2024-03-26 | 潍柴动力股份有限公司 | Power generation power adjustment method and device of range-extending system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117755152A (en) * | 2024-02-22 | 2024-03-26 | 潍柴动力股份有限公司 | Power generation power adjustment method and device of range-extending system |
| CN117755152B (en) * | 2024-02-22 | 2024-05-17 | 潍柴动力股份有限公司 | Power generation power adjustment method and device of range-extending system |
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