CN115923762A - Method and device for controlling generated power of range extender, electronic equipment and storage medium - Google Patents
Method and device for controlling generated power of range extender, electronic equipment and storage medium Download PDFInfo
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Abstract
The application provides a method and a device for controlling the generated power of a range extender, electronic equipment and a storage medium, which relate to the technical field of vehicle control, and the method comprises the following steps: the method comprises the steps of determining an absolute value of accumulated variation of battery electric quantity in a current period, adopting a preset correction strategy to correct current generating power of a range extender to obtain target generating power under the condition that the absolute value of the accumulated variation is larger than a first set threshold, and controlling the range extender to work by adopting the target generating power in the next period.
Description
Technical Field
The application relates to the technical field of vehicle control, in particular to a method and a device for controlling power generation power of a range extender, electronic equipment and a storage medium.
Background
With the rapid development of science and technology, more and more extended range automobiles get into the visual field of people, and the default electric quantity mode set by the factory offline of the extended range automobiles is generally the 'electric quantity keeping mode'. When the vehicle is driven in this mode without external charging, the final battery charge level (SOC) is always maintained around the set target value. However, due to differences between vehicles and parts and complexity of actual road conditions, the preset generated power of the range extender cannot accurately maintain the battery capacity near the set target value.
Therefore, how to correct the generated power of the range extender so that the battery capacity is maintained near the set target value is a concern in the industry.
Disclosure of Invention
In view of the above-mentioned drawbacks and deficiencies of the prior art, the present application is directed to a method, an apparatus, an electronic device, and a storage medium for controlling power generated by a range extender, which can correct the power generated by the range extender to maintain the battery level near a set target value.
In a first aspect, the present application provides a method for controlling power generated by a range extender, the method comprising:
determining the absolute value of the accumulated variation of the battery capacity in the current period;
in response to the fact that the absolute value of the accumulated variation is larger than a first set threshold, correcting the current generated power of the range extender by adopting a preset correction strategy to obtain a target generated power;
and controlling the range extender to work by adopting the target generating power in the next period.
According to the technical scheme provided by the embodiment of the application, the determining the absolute value of the accumulated variation of the battery power in the current period includes:
performing integral calculation on the product of the battery voltage and the current in the current statistical period; and when the current statistical period is ended, obtaining an integral calculation result as the accumulated variation, and determining the absolute value of the accumulated variation.
According to the technical scheme provided by the embodiment of the application, after the range extender is controlled to work by adopting the target generated power in the next period, the method further comprises the following steps:
stopping correcting the generated power of the range extender in response to the absolute value of the accumulated change amount being smaller than a second set threshold;
the second set threshold is smaller than the first set threshold, and the difference between the second set threshold and the first set threshold is a preset difference.
According to the technical scheme provided by the embodiment of the application, the preset correction strategy is a correction formula of the power generation power as follows: target generated power = current generated power + (Δ EREESS/cycle time);
where Δ EREESS is the accumulated change of the battery charge in the current cycle.
According to the technical scheme provided by the embodiment of the application, after the power generation of the range extender is stopped to be corrected, the method further comprises the following steps:
determining an absolute value of an accumulated change amount of the battery power in each period after the current period;
and when the absolute value of the accumulated variation of the battery power in any period after the current period is larger than the first set threshold, returning to the step of controlling the range extender to work with the target generated power in the next period.
According to the technical scheme provided by the embodiment of the application, the method further comprises the following steps:
and maintaining the current correction state in the next period in response to the absolute value of the accumulated variation of the battery power in the current period being less than or equal to the first set threshold and greater than the second set threshold.
According to the technical scheme provided by the embodiment of the application, the method for correcting the current generating power of the range extender by adopting a preset correction strategy to obtain the target generating power comprises the following steps:
and setting an enabling state as a target state to indicate the range extender to modify the current generating power of the range extender by adopting a preset modification strategy so as to obtain target generating power.
In a second aspect, the present application provides a control apparatus for power generation of a range extender, the control apparatus comprising:
the statistical module is used for determining the absolute value of the accumulated variation of the battery electric quantity in the current period;
the correction module is used for correcting the current generating power of the range extender by adopting a preset correction strategy under the condition that the absolute value of the accumulated variation is larger than a first set threshold value to obtain target generating power;
and the control module controls the range extender to work by adopting the target generating power in the next period.
In a third aspect, the present application provides an electronic device, comprising:
a memory for storing a program; and
and the processor is used for executing the control method of the generated power of the range extender provided by the application by calling the program stored in the memory.
In a fourth aspect, the present application provides a computer-readable storage medium storing computer instructions for causing a computer to execute any one of the methods for controlling power generated by a range extender provided herein.
In summary, the present application provides a method and an apparatus for controlling power generated by a range extender, an electronic device, and a storage medium. The method comprises the following steps: the method comprises the steps of determining an absolute value of accumulated variation of battery electric quantity in a current period, adopting a preset correction strategy to correct current generating power of a range extender to obtain target generating power under the condition that the absolute value of the accumulated variation is larger than a first set threshold, and controlling the range extender to work by adopting the target generating power in the next period.
Drawings
Fig. 1 is a flowchart of a method for controlling power generation of a range extender according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a time cycle sequence provided by an embodiment of the present application;
FIG. 3 is a schematic diagram of another time cycle sequence provided by an embodiment of the present application;
fig. 4 is a flowchart of a method for controlling power generation of a range extender according to an embodiment of the present disclosure;
fig. 5 is a flowchart of a method for controlling power generated by a range extender according to an embodiment of the present disclosure;
fig. 6 is a schematic diagram of a range extender power generation device according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
The text labels in the figures are represented as: 100. a statistical module; 200. a correction module; 300. a control module; 700. an electronic device; 701. a memory; 702. a processor; 703. a data acquisition module; 704. a bus.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
As mentioned in the background art, the present application provides a method and an apparatus for controlling power generation of a range extender, an electronic device, and a storage medium, which are directed to the problems in the prior art. The power generation condition of the current statistical period can be monitored, then the power generation power of the next period is finely adjusted, so that the power generation power of the range extender can be timely and timely adjusted, the fluctuation of the battery power can be reduced, and the battery power can be maintained near the set target value.
The principle and the implementation of the present application are explained by applying specific examples in the present application, and the above description of the embodiments is only used to help understanding the method and the core idea of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are objectively infinite specific structures due to the limited character expression, and it will be apparent to those skilled in the art that several modifications, decorations or changes may be made without departing from the principle of the present application, and the above technical features may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention in other instances, which may or may not be practiced, are intended to be within the scope of the present application.
Fig. 1 shows a control method for generating power of a range extender, which is provided by an embodiment of the present application, and the control method mainly includes the following steps:
step S100, determining an absolute value of the accumulated variation of the battery power in the current period.
As shown in fig. 2, in the embodiment of the present disclosure, the power generation phase of the range extender is divided into a plurality of time periods, and each time period may separately count the absolute value of the accumulated variation of the battery power.
In one possible implementation, the battery level at the beginning of the current statistical period may be determined (assumed to be a), and the battery level may be determined again (assumed to be b) at the end of the current statistical period, so that b-a may be calculated to obtain an accumulated variation, and then an absolute value of the accumulated variation may be obtained, so as to obtain an absolute value of the accumulated variation of the battery level in the current period.
Of course, in order to improve the accuracy of the control of the range extender, in an alternative implementation manner, the embodiment of the present application may further perform an integral calculation on the product of the battery voltage and the battery current in the current statistical period, and at the end of the current statistical period, the obtained integral calculation result is used as the accumulated variation. Specifically, during the running process of the extended-range vehicle, the battery capacity (SOC) is constantly changed, when the SOC is higher than a set target value, the vehicle battery can supply power to generate engine torque to power the vehicle, and when the SOC is lower than or equal to the set target value, the battery can be charged by burning fuel by the engine or recovering kinetic energy of the braking system. In order to count the accumulated change of the SOC in the current period, the product of the battery voltage and the battery current may be integrated in the current counting period, the battery voltage and the battery current during the charging and discharging processes of the vehicle battery may be obtained in real time, a change curve of the product of the battery voltage and the battery current may be integrated, the accumulated change Δ EREESS of the battery power in the current period may be obtained, and an absolute value of the accumulated change Δ EREESS may be obtained. Wherein, the expression of integral calculation is shown as formula (1):
ΔEREESS＝∫UI dx (1)
where U is the battery voltage, I is the current, which has both a charging direction and a discharging direction, and thus, the current I has both a positive value and a negative value.
The accuracy of the accumulated variation delta EREESS of the battery electric quantity can be ensured through real-time accumulated calculation, and a data basis is laid for the follow-up accurate control of the range extender. And step S200, under the condition that the absolute value of the accumulated variation is larger than a first set threshold, correcting the current generating power of the range extender by adopting a preset correction strategy to obtain the target generating power.
In an alternative embodiment, in the case where the absolute value of the accumulated change amount Δ EREESS is greater than the first set threshold, the generated power correction formula may be used, as shown in equation (2):
target generated power = current generated power + (Δ EREESS/cycle time) (2)
Specifically, the first set threshold may be a correction enabling value, and when the absolute value of the accumulated variation is greater than the correction enabling value, the current generated power may be obtained in the current period, and the current generated power of the range extender is corrected by using the generated power correction formula (2), so as to obtain the target generated power. In equation (2), Δ EREESS is the accumulated variation of the battery charge counted in the previous cycle, and the cycle time is a preset time duration of the cycle, which may be 30S, for example, or a shorter or longer preset time duration may be set according to the actual usage.
The current generated power of the range extender can be preset according to different road conditions, for example, if the current road has more congestion and traffic lights, so that the starting, stopping, speed reduction and acceleration times of the automobile are more, the generated power of the range extender is required to be higher, and the generated power of the range extender can be set to be a higher preset value. For another example, if the current road is relatively smooth, and the starting, stopping and speed changing times of the automobile are relatively small, the power generation requirement of the range extender is relatively small, and the power generation of the range extender can be set to be a relatively small preset value.
The current generated power of the range extender is corrected through the formula (2), the calculation is simple and convenient, the consumed resources are less, and the generated power of the next period can be adjusted without depending on extra hardware, so that the accuracy of controlling the range extender can be improved.
In another alternative embodiment, in the case that the absolute value of the accumulated variation is greater than the first set threshold, the current generated power of the range extender may be corrected by using the generated power correction formula and the influence factor α to obtain the target generated power.
Specifically, the first set threshold is a correction enabling value, and when the absolute value of the accumulated variation is greater than the correction enabling value, in the current cycle, the current generated power and the influence factor α may be obtained, and the generated power is corrected by using a generated power correction formula and the influence factor α, where the expression is as shown in formula (3):
target generated power = current generated power + (Δ EREESS/cycle time) × α (3)
In equation (3), Δ EREESS is the accumulated variation of the battery power counted in the previous cycle, and the cycle time is the preset duration of the cycle. Alpha is an influence factor, and the influence factor alpha can be determined according to different vehicle types and is used for compensating statistical errors of different vehicle types. In addition, the influence factor alpha can be determined according to conditions such as actual road conditions, weather and temperature and the like, and is used for compensating the statistical error under the conditions. Certainly, the vehicle type, the road disclosure, the weather and the temperature can respectively correspond to one influence factor during implementation, and at least one influence factor of the vehicle type, the road disclosure, the weather and the temperature can be comprehensively considered to obtain a fusion influence factor, and the fusion influence factor is applied to the expression (3). The fusion mode can adopt a product mode, and can be determined according to actual conditions through experiments.
In another optional embodiment, when the absolute value of the accumulated variation is greater than the first set threshold, the current generated power of the range extender may be corrected by using the power correction model to obtain the target generated power.
Specifically, in the current period, the current generated power and the accumulated variation Δ EREESS of the battery power counted in the previous period may be obtained, and the current generated power and the accumulated variation Δ EREESS of the battery power counted in the previous period are input to a trained power correction model (a neural network model) to obtain the target generated power. In order to obtain the trained power correction model, the generated power of the current period and the accumulated variation Δ EREESS counted in the current period and the previous n periods may be input into the power correction model to be trained, a power correction result is output, a loss value is determined according to the target generated power and the power correction result, and then a parameter of the power correction model to be trained is adjusted according to the loss value until the loss value converges to a preset expected value or is iterated for a preset number of times, so as to obtain the trained power correction model.
The trained power correction model may then be used to predict the target generated power needed for the next cycle.
After the target generated power is obtained in step S200, the range extender may be controlled to operate with the target generated power in the next cycle in step S300.
In the current period, after the target generated power is obtained, the range extender can be controlled to work with the target generated power in the next period.
In some embodiments, in order to reduce the consumption of computing resources, if the accumulated variation of the electric quantity of the automobile battery tends to be stable after the correction of the generated power of the range extender, the correction of the generated power of the range extender can be stopped.
In an alternative embodiment, the generated power of the range extender may be stopped in the case where the absolute value of the accumulated change amount is smaller than the second set threshold.
The second set threshold is smaller than the first set threshold, and the difference between the second set threshold and the first set threshold is a preset difference.
That is, the first set threshold and the second set threshold satisfy the relationship shown in the following expression (4):
second set threshold = first set threshold-offset (4)
The second set threshold is an energy value for stopping correction, and a preset difference offset between the second set threshold and the first set threshold can be preset according to different vehicle types. Specifically, if the generated power of the range extender is corrected in the previous cycle of the current cycle, and the absolute value of the accumulated variation Δ EREESS of the battery power, which is obtained by statistics in the previous cycle, is smaller than the correction stopping enable value, the correction of the generated power of the range extender may be stopped.
In some embodiments, after the power generation of the range extender is stopped being corrected, whether the accumulated variation of the electric quantity of the automobile battery has large fluctuation or not can be monitored in real time in order to accurately control the power generation of the range extender, and if the large fluctuation occurs, the step of controlling the range extender to work with the target power generation power in the next period can be returned to be executed.
In an optional embodiment, after the generated power of the range extender is stopped being corrected, the accumulated variation of the battery power in each period after the current period can be continuously counted, and when the absolute value of the accumulated variation of the battery circuit in any period is larger than the first set threshold, the step of controlling the range extender to work with the target generated power in the next period is returned to be executed, and the generated power of the range extender is continuously corrected.
In view of the above, in order to facilitate understanding of the control method of the range extender in the present application, the following description will be made with reference to fig. 3 and 4.
As shown in fig. 3, in the embodiment of the present disclosure, the working time of the range extender is divided into a plurality of periods, and the generated power of the next period is adjusted depending on the statistical result of the previous period. Therefore, the change of the battery electric quantity can be sensed in time through each period, so that the generated power of the next period can be adjusted in real time and properly.
As shown in fig. 4, an overall flow chart of controlling the generated power of the range extender in the embodiment of the present disclosure includes the following steps:
step S401, time duration t is counted.
Specifically, when the electric quantity mode of the extended range type automobile is set to be the electric quantity keeping mode, timing can be started, and t represents the timing duration.
In step S402, the battery voltage and current are integrated.
Specifically, the integral calculation may be performed on a change curve of the product of the battery voltage and the battery current, so as to obtain the accumulated change Δ EREESS of the battery charge in the current period.
Wherein, the expression of the integral calculation is shown in formula (1):
ΔEREESS＝∫UI dx (1)
where U is the battery voltage, I is the current, which has both a charging direction and a discharging direction, and thus, the current I has both a positive value and a negative value.
It should be noted that step S401 and step S402 are two steps performed simultaneously, and there is no order of priority.
In step S403, it is determined whether the time period T is equal to the period T.
The period T is a preset time length, and if the period T is 30S, it may be determined whether the timing time length T is equal to 30S.
In step S404, the cumulative change amount Δ EREESS of the battery is determined.
When the time period is determined to be equal to the period T, the cumulative change amount Δ EREESS of the battery at that time can be determined.
In step S405, the timer period is reset.
After determining the accumulated battery variation Δ EREESS in one cycle, the timing duration t may be reset to 0, and the process returns to step S401 to continue determining the timing duration to monitor the next cycle duration.
In step S406, the integral of the battery voltage and current is reset.
After determining the accumulated change Δ EREESS of the battery in one cycle, the integral of the battery voltage and current may be reset to 0, and the process returns to step S402 to continue monitoring the battery voltage and current to determine the integral of the battery voltage and current in the next cycle, i.e., the accumulated change Δ EREESS of the battery charge in the next cycle.
Step S407, determining whether the absolute value of Δ EREESS is greater than a first set threshold, if so, performing step S408, and if not, performing step S409.
Wherein Δ EREESS is the accumulated variation of the battery power, and the first set threshold is a correction enabling value, which can be preset according to the actual situation.
In step S408, the generated power of the range extender is corrected.
In an alternative embodiment, in the case where the absolute value of the accumulated change amount Δ EREESS is greater than the first set threshold, the generated power correction formula may be used, as shown in equation (2):
target generated power = current generated power + (Δ EREESS/cycle time) (2)
In equation (2), Δ EREESS is the accumulated variation of the battery power counted in the previous cycle, and the cycle time is a preset time length of the cycle, for example, 30S, and a shorter or longer preset time length may be set according to the actual use condition.
The current generated power of the range extender can be preset according to different road conditions, for example, if the current road has more congestion and traffic lights, so that the starting, stopping, speed reduction and acceleration times of the automobile are more, the generated power of the range extender is required to be higher, and the generated power of the range extender can be set to be a higher preset value. For another example, if the current road is relatively smooth and the starting, stopping and speed changing times of the automobile are relatively few, the power generation requirement of the range extender is relatively small, and the power generation power of the range extender can be set to be a relatively small preset value.
The current generated power of the range extender is corrected through the formula (2), the calculation is simple and convenient, the consumed resources are less, and the generated power of the next period can be adjusted without depending on extra hardware, so that the accuracy of controlling the range extender is improved.
In another alternative embodiment, in the case that the absolute value of the accumulated variation is greater than the first set threshold, the current generated power of the range extender may be corrected by using the generated power correction formula and the influence factor α to obtain the target generated power.
Specifically, the first set threshold is a correction enabling value, and the correction enabling value indicates that the generated power of the range extender can be corrected when the absolute value of the accumulated variation of the battery capacity is greater than the correction enabling value. Under the condition that the absolute value of the accumulated variation is larger than the correction enabling value, in the current period, the current generating power and the influence factor alpha can be obtained, and the generating power is corrected by using a generating power correction formula and the influence factor alpha, wherein the expression is shown in formula (3):
target generated power = current generated power + (Δ EREESS/cycle time) × α (3)
In equation (3), Δ EREESS is the accumulated variation of the battery power counted in the previous cycle, and the cycle time is the preset duration of the cycle. Alpha is an influence factor, and the influence factor alpha can be determined according to different vehicle types and is used for compensating statistical errors of different vehicle types. In addition, the influence factor alpha can be determined according to conditions such as actual road conditions, weather and temperature and the like, and is used for compensating the statistical error under the conditions. For example, if the ambient temperature of the vehicle is less than 0 ℃, the battery power loss speed is faster, the range of the generated power of the range extender needs to be corrected is larger, and the influence factor α may be 1.5. Certainly, the vehicle type, the road disclosure, the weather and the temperature can respectively correspond to one influence factor during implementation, and at least one influence factor of the vehicle type, the road disclosure, the weather and the temperature can be comprehensively considered to obtain a fusion influence factor, and the fusion influence factor is applied to the expression (3). The fusion mode can be a product mode, and can be determined by experiment according to actual conditions.
In another optional embodiment, when the absolute value of the accumulated variation is greater than the first set threshold, the current generated power of the range extender may be corrected by using the power correction model to obtain the target generated power.
Specifically, in the current period, the current generated power and the accumulated variation Δ EREESS of the battery power counted in the previous period may be obtained, and the current generated power and the accumulated variation Δ EREESS of the battery power counted in the previous period may be input to a trained power correction model (a neural network model) to obtain the target generated power. In order to obtain the trained power correction model, the generated power of the current period and the accumulated variation Δ EREESS counted by the current period and the previous n periods may be input into the power correction model to be trained, a power correction result is output, a loss value is determined according to the target generated power and the power correction result, and then a parameter of the power correction model to be trained is adjusted according to the loss value until the loss value converges to a preset expected value or is iterated for a preset number of times, so as to obtain the trained power correction model.
The trained power correction model may then be used to predict the target generated power needed for the next cycle.
Step S409, determining whether the absolute value of Δ EREESS is smaller than a second set threshold, if so, executing step S410, and if so, executing step S411. The second set threshold is smaller than the first set threshold, and the difference between the second set threshold and the first set threshold is a preset difference.
That is, the first set threshold and the second set threshold satisfy the relationship shown in the following expression (4):
second set threshold = first set threshold-offset;
the second set threshold is an energy value for stopping correction, and a preset difference offset between the second set threshold and the first set threshold can be preset according to different vehicle types.
In step S410, the correction of the generated power of the range extender is stopped.
In some embodiments, in order to reduce consumption of computing resources, if the accumulated variation of the electric quantity of the automobile battery tends to be stable after the power generated by the range extender is corrected, the correction of the power generated by the range extender can be stopped.
In an alternative embodiment, the generated power of the range extender may be stopped in the case where the absolute value of the accumulated change amount is smaller than the second set threshold.
Specifically, if the generated power of the range extender is corrected in the previous cycle of the current cycle, and the absolute value of the accumulated variation Δ EREESS of the battery power, which is obtained by statistics in the previous cycle, is smaller than the correction stopping enable value, the correction of the generated power of the range extender may be stopped.
In step S411, the generated power of the range extender is corrected.
In an alternative embodiment, in the case where the absolute value of the accumulated change amount is greater than or equal to the second set threshold, the generated power of the range extender may be continuously corrected.
Specifically, if the generated power of the range extender is corrected in the previous cycle of the current cycle, and the absolute value of the accumulated variation Δ EREESS of the battery power counted in the previous cycle is greater than or equal to the correction stopping enabling value, the generated power of the range extender can be continuously corrected. In addition, in order to manage the range extender, the correction function may be turned on or off as shown in fig. 5 using a method including the steps of:
step S501, obtaining the current generated power.
In an optional implementation manner, the current generated power of the range extender may be preset according to different road conditions, for example, if there are more congestion and traffic lights on the current road, which results in more starting, stopping, speed reduction and acceleration times of the automobile, the generated power of the range extender is required to be higher, and the generated power of the range extender may be set to be a higher preset value. For another example, if the current road is relatively smooth, and the starting, stopping and speed changing times of the automobile are relatively small, the power generation requirement of the range extender is relatively small, and the power generation of the range extender can be set to be a relatively small preset value.
Step S502, judging whether the current enabling state is the target state. If yes, go to step S503, otherwise go to step S504.
In order to implement the function of turning on or off the correction function at any time, in an optional implementation manner, an enable state may be set as a target state, so as to instruct the range extender to correct the current generated power of the range extender by using a preset correction strategy, so as to obtain a target generated power, where the target state is that an absolute value of an accumulated variation Δ EREESS of the battery power in a previous period is greater than a correction enable value.
Specifically, if the user turns on the generated power correction function, the enable state may be set as a target state to instruct the range extender to correct the current generated power of the range extender by using a preset correction strategy, and if the user turns off the generated power correction function, the enable state may be set as a non-target state to instruct to turn off the generated power correction function.
And S503, correcting the current generating power of the range extender by adopting a preset correction strategy.
If the absolute value of the accumulated variation of the battery power is greater than the correction enabling value, the current generated power of the range extender can be corrected by adopting a preset correction strategy, which is described in detail above and is not described herein again.
Step S504, the original generated power is maintained.
If the enable state is the non-target state, the generated power is not processed, and the original generated power is maintained.
The method for controlling the generated power of the range extender provided by the application is not in conflict with the original control strategy of the range extender, and the fluctuation of the electric quantity of the battery can be reduced by only adding extra correction, so that the electric quantity of the battery is maintained near the set target value, and the correction function can be started and closed at any time.
Based on the same inventive concept, an embodiment of the present invention further provides a schematic structural diagram of a control device for generating power of a range extender, as shown in fig. 6, the control device includes:
a statistical module 100, configured to determine an absolute value of an accumulated variation of the battery power in a current period;
the correction module 200 is configured to, when the absolute value of the accumulated variation is greater than a first set threshold, correct the current generated power of the range extender by using a preset correction strategy to obtain a target generated power;
and the control module 300 controls the range extender to work with the target generating power in the next period.
In an alternative embodiment, the statistical module 100 is specifically configured to perform an integral calculation on a product of the battery voltage and the current in a current statistical period, obtain an integral calculation result as an accumulated variation at the end of the current statistical period, and determine an absolute value of the accumulated variation.
In an alternative embodiment, the correction module 200 is further configured to stop correcting the generated power of the range extender if the absolute value of the accumulated change amount is smaller than a second set threshold, where the second set threshold is smaller than the first set threshold, and a difference between the second set threshold and the first set threshold is a preset difference.
In an alternative embodiment, the preset correction strategy is the following electric power generation correction formula: target generated power = current generated power + (Δ EREESS/cycle time); where Δ EREESS is the accumulated change amount of the battery power in the current period.
In an alternative embodiment, the modification module 200 is specifically configured to determine an absolute value of an accumulated variation of the battery power in each cycle after the current cycle; and in the case that the absolute value of the accumulated change amount of the battery circuit in any period is larger than a first set threshold, returning to the step of controlling the range extender to work with the target generated power in the next period.
In an alternative embodiment, the modification module 200 is further configured to maintain the current modification state in the next period if the absolute value of the accumulated change amount of the battery power in the current period is smaller than or equal to a first set threshold and larger than a second set threshold. For example, if the correction is triggered before, the correction is still performed; no correction is made before, and no correction is triggered.
In an optional embodiment, the modification module 200 is specifically configured to set the enable state as a target state, so as to instruct the range extender to modify the current generated power of the range extender by using a preset modification strategy, so as to obtain a target generated power.
Based on the same inventive concept, the embodiment of the application further provides an electronic device, and the electronic device can be a server or a vehicle-mounted terminal. The electronic device at least comprises a memory for storing data and a processor, wherein, for the processor for data Processing, when executing Processing, the processor can be implemented by a microprocessor, a CPU, a GPU (Graphics Processing Unit), a DSP or an FPGA. For the memory, the memory stores therein operating instructions, which may be computer executable codes, and the operating instructions implement the steps in the flow of the control method for generating power by the range extender according to the embodiment of the present application.
Fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application. As shown in fig. 7, electronic device 700 includes memory 701, processor 702, data acquisition module 703, and bus 704. The memory 701, the processor 702 and the data acquisition module 703 are all connected by a bus 704, and the bus 704 is used for data transmission among the memory 701, the processor 702 and the data acquisition module 703.
The memory 701 may be used to store software programs and modules, and the processor 702 executes various functional applications and data processing of the electronic device 700 by running the software programs and modules stored in the memory 701, such as the method for controlling the power generated by the range extender provided in the embodiment of the present application. The memory 701 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program of at least one application, and the like; the storage data area may store data created according to use of the electronic device 700, and the like. Further, the memory 701 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 702 is a control center of the electronic device 700, connects various parts of the entire electronic device 700 using the bus 704 and various interfaces and lines, and performs various functions of the electronic device 700 and processes data by running or executing software programs and/or modules stored in the memory 701 and calling data stored in the memory 701. Alternatively, the processor 702 may include one or more Processing units, such as a CPU, a GPU (Graphics Processing Unit), a digital Processing Unit, and the like.
The embodiment of the present application further provides a computer-readable storage medium, in which computer-executable instructions are stored, and when executed by a processor, the computer program may be used to implement the method for controlling the generated power of the range extender described in any embodiment of the present application.
In some possible embodiments, various aspects of a method for controlling power generated by a range extender provided by the present application may also be implemented in the form of a program product, which includes program code for causing a computer device to perform the steps of the method for controlling power generated by a range extender according to various exemplary embodiments of the present application described above in this specification, when the program product is run on a computer device, for example, the computer device may perform a flow of the method for controlling power generated by a range extender as shown in fig. 1.
As will be appreciated by one skilled in the art, 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 the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams 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.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. A method of controlling power generated by a range extender, the method comprising:
determining the absolute value of the accumulated variation of the battery capacity in the current period;
in response to the fact that the absolute value of the accumulated variation is larger than a first set threshold, correcting the current generated power of the range extender by adopting a preset correction strategy to obtain a target generated power;
and controlling the range extender to work by adopting the target generating power in the next period.
2. The method of claim 1, wherein determining the absolute value of the cumulative change in battery charge during the current period comprises:
performing integral calculation on the product of the battery voltage and the current in the current statistical period;
and when the current statistical period is ended, obtaining an integral calculation result as the accumulated variation, and determining the absolute value of the accumulated variation.
3. The method of claim 1, wherein after controlling the range extender to operate with the target generated power in the next cycle, the method further comprises:
stopping correcting the generated power of the range extender in response to the absolute value of the accumulated variation being smaller than a second set threshold;
the second set threshold is smaller than the first set threshold, and a difference between the second set threshold and the first set threshold is a preset difference.
4. The method according to any one of claims 1 to 3, wherein the preset correction strategy is the following electric power generation correction formula: target generated power = current generated power + (Δ EREESS/cycle time);
where Δ EREESS is the accumulated change amount of the battery power in the current period.
5. The method of claim 2, further comprising, after stopping modifying the generated power of the range extender:
determining an absolute value of an accumulated amount of change in battery level in each period after the current period;
and when the absolute value of the accumulated variation of the battery power in any period after the current period is larger than the first set threshold, returning to the step of controlling the range extender to work with the target generated power in the next period.
6. The method of claim 2, further comprising:
and maintaining the current correction state in the next period in response to the absolute value of the accumulated variation of the battery power in the current period being less than or equal to the first set threshold and greater than the second set threshold.
7. The method of claim 1, wherein the step of correcting the current generated power of the range extender by using a preset correction strategy to obtain a target generated power comprises the following steps:
and setting an enabling state as a target state to indicate the range extender to modify the current generating power of the range extender by adopting a preset modification strategy so as to obtain target generating power.
8. A control device for generating power of a range extender, the control device comprising:
the statistical module is used for determining the absolute value of the accumulated variation of the battery electric quantity in the current period;
the correction module is used for correcting the current generating power of the range extender by adopting a preset correction strategy under the condition that the absolute value of the accumulated variation is larger than a first set threshold value to obtain target generating power;
and the control module controls the range extender to work by adopting the target generating power in the next period.
9. An electronic device, characterized in that the electronic device comprises:
a memory for storing a program;
and a processor for executing the control method of range extender generated power according to any one of claims 1 to 7 by calling the program stored in the memory.
10. A computer-readable storage medium storing computer instructions for causing a computer to execute the method for controlling power generation of a range extender 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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