CN114162109A - Range extender power control method and device, power utilization device, electronic equipment and vehicle - Google Patents
Range extender power control method and device, power utilization device, electronic equipment and vehicle Download PDFInfo
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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
- 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
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- B60W2510/242—Energy storage means for electrical energy
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- 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
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Abstract
The application discloses a range extender power control method, a range extender power control device, an electric device, electronic equipment and a vehicle, wherein the method comprises the following steps: determining a power following target value of the range extender according to the required power value of the electric device and the power parameter of the battery; determining a filter coefficient according to the power margin of the battery, wherein the filter coefficient is positively correlated with the power margin; filtering the power following target value by using the filtering coefficient to obtain a filtered following power value; and controlling the output power of the range extender according to the filtered follow-up power value. According to the method and the device, the power following target value is filtered, when the power allowance of the battery is large, the working condition change of the range extender is controlled to be smoother, and therefore the efficiency of the range extender and the NVH performance of an electric device can be improved; when the power allowance of the battery is small, the working condition of the range extender is controlled to change faster, so that the power utilization requirement of the power utilization device and the charging requirement of the battery can be met as much as possible.
Description
Technical Field
The application belongs to the technical field of range extender control, and particularly relates to a range extender power control method and device, an electric device, electronic equipment and a vehicle.
Background
The range extender of the range-extended electric device (such as a range-extended electric vehicle) consists of an engine and a generator, the engine drives the generator to generate electricity, and the output electric energy is used for charging a battery of the electric device or supplying power to a driving motor of the electric device.
At present, the working mode of the range extender usually adopts a power following mode, in the power following mode, the required power of the electric device is taken as a target of power following, when the driving working condition of the electric device changes, the power of the range extender changes rapidly, which not only causes the poor performance of the NVH (Noise, Vibration and Harshness) of the electric device, but also causes the low efficiency of the range extender.
Disclosure of Invention
The embodiment of the application provides a range extender power control method, a range extender power control device, an electric device, an electronic device and a vehicle, and aims to solve the technical problems that in the existing range extender power following mode, the NVH performance of the electric device is poor and the efficiency of the range extender is low due to the fact that the power of the range extender changes rapidly.
In a first aspect, an embodiment of the present application provides a method for controlling power of a range extender, including:
determining a power following target value of the range extender according to the required power value of the electric device and the power parameter of the battery;
determining a filter coefficient according to the power margin of the battery, wherein the filter coefficient is positively correlated with the power margin;
filtering the power following target value by using the filtering coefficient to obtain a filtered following power value;
and controlling the output power of the range extender according to the filtered follow-up power value.
In a second aspect, an embodiment of the present application provides a range extender power control device, including:
the first determining module is used for determining a power following target value of the range extender according to the required power value of the electric device and the power parameter of the battery;
a second determination module, configured to determine a filter coefficient according to a power margin of the battery, where the filter coefficient is positively correlated with the power margin;
the filtering module is used for filtering the power following target value by using the filtering coefficient so as to obtain a filtered following power value;
and the first control module is used for controlling the output power of the range extender according to the filtered follow power value.
In a third aspect, an embodiment of the present application provides an electrical device, including the range extender power control device of the second aspect.
In a fourth aspect, an embodiment of the present application provides an electronic device, including: a processor, and a memory storing computer program instructions;
the processor reads and executes the computer program instructions to implement the range extender power control method of the first aspect.
In a fifth aspect, an embodiment of the present application provides a vehicle implementing the range extender power control method according to the first aspect.
In a sixth aspect, an embodiment of the present application provides a computer storage medium having computer program instructions stored thereon, where the computer program instructions, when executed by a processor, implement the range extender power control method according to the first aspect.
In the embodiment of the application, firstly, the power following target value of the range extender is determined according to the required power value of the electric device and the power parameter of the battery. The power following target not only considers the power consumption requirement of the electric device, but also considers the power parameter of the battery, so that the determined power following target is more reasonable. And then, determining a filter coefficient according to the power margin of the battery, filtering the power following target value by using the filter coefficient, and controlling the output power of the range extender according to the filtered following power value, wherein the filter coefficient is positively correlated with the power margin. When the power allowance is large, the charging requirement of the battery in a short time is generally small, and the power allowance of the battery can well meet the power consumption requirement of the power consumption device in a short time, so that a large filter coefficient can be used for filtering the power following target value, the working condition change of the range extender is smoother, the efficiency of the range extender can be improved, and the NVH performance of the power consumption device can be improved; when the power allowance is small, the charging requirement of the battery in a short time is generally large, and the power allowance of the battery may not well meet the power consumption requirement of the electric device in a short time, so that the power can be filtered along with the target value by using a small filter coefficient, the working condition of the range extender is changed more quickly, and the power consumption requirement of the electric device and the charging requirement of the battery can be met as much as possible.
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In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flow chart of a method for controlling power of a range extender according to some embodiments of the present disclosure;
FIG. 2 is a graph containing filtered follow power values provided by some embodiments of the present application;
FIG. 3 is a graph containing filtered follow power values provided by further embodiments of the present application;
FIG. 4 is a diagram of a specific example of a range extender power control method provided in some embodiments of the present application;
fig. 5 is a schematic structural diagram of a range extender power control apparatus according to some embodiments of the present application;
FIG. 6 is a schematic view of a powered device provided by some embodiments of the present application;
fig. 7 is a hardware structure diagram of an electronic device according to some embodiments of the present application.
Detailed Description
Features and exemplary embodiments of various aspects of the present application will be described in detail below, and in order to make objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples thereof.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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 … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
As background art says, the working mode of the range extender at present usually adopts a power following mode, in the power following mode, the required power of the electric device is taken as the target of power following, and when the driving working condition of the electric device changes, the power of the range extender changes faster, which not only results in poor NVH performance of the electric device, but also results in low efficiency of the range extender.
In order to solve the problems in the prior art, embodiments of the present application provide a range extender power control method, a range extender power control device, an electrical device, an electronic device, and a computer storage medium.
First, a method for controlling the power of the range extender provided in the embodiment of the present application will be described.
Fig. 1 shows a flow chart of a range extender power control method provided in an embodiment of the present application.
As shown in fig. 1, the method may include the steps of:
step 110: and determining a power following target value of the range extender according to the required power value of the electric device and the power parameter of the battery.
Step 120: and determining a filter coefficient according to the power margin of the battery, wherein the filter coefficient is positively correlated with the power margin.
Step 130: and filtering the power following target value by using the filter coefficient to obtain a filtered following power value.
Step 140: and controlling the output power of the range extender according to the filtered follow power value.
For convenience of description, the specific process of the range extender power control method will be described below with the range extender power control device as an execution subject.
In step 110, the range extender power control device may determine the power following target value of the range extender according to the power demand value of the power-consuming device and the power parameter of the battery.
The electric device is understood to be an electric energy using device with a range extender, and is an extended range electric vehicle as an example.
The power demand of the electric device can be understood as the power required by the electric device, and in the case of an electric vehicle, the power demand can include the power required for driving the vehicle, and the power required for high-voltage accessories can be the power required for driving other high-voltage accessories in the vehicle, specifically, the high-voltage accessories can be a DC/DC converter, an air conditioner compressor and/or a car heater.
The power parameter of the battery may be understood as a parameter related to the power of the battery, which may include, but is not limited to, parameters such as an actual power value, a balance power value or a saturation power value of the battery, and the power parameter of the battery may be related to parameters such as a state of charge (SOC), a temperature, and the like of the battery.
It should be noted that, compared with the prior art that the power following value of the range extender is determined only according to the required power value of the electric device, in the embodiment of the present application, the power following value of the range extender is determined jointly according to the two parameters, that is, the required power value of the electric device and the power parameter of the battery, so that the influence of the battery as a power supplier on the working condition of the range extender is fully reflected, and the determined power following value is more reasonable.
In step 120, the range extender power control means may determine a filter coefficient based on the power margin of the battery.
The filter coefficient is positively correlated with the power margin, and the larger the power margin is, the larger the filter coefficient is.
The power margin of the battery, which may also be referred to as a remaining available power margin, is related to the actual power value, the maximum discharge power, and the maximum charge power of the battery. Here, the maximum discharge power and the maximum charge power indicate power capabilities of charging and discharging the battery, and indicate a charging and discharging speed of the battery in a short time. The power margin of the battery can be obtained by calculation according to the actual power of the battery and the maximum discharge power or the maximum charging power of the battery.
For example, a mapping table of the power margin and the filter coefficient may be obtained in advance through simulation, experiment, and the like, the filter coefficient corresponding to each power margin is recorded in the table, and after the current power margin is calculated, the filter coefficient corresponding to the power margin may be determined through table lookup.
And a calculation formula of the filter coefficient can be obtained in advance through means of simulation, experiment and the like, in the formula, the power margin can be used as an independent variable, the filter coefficient can be used as a dependent variable, and after the current power margin is calculated, the filter coefficient corresponding to the current power margin can be obtained through calculation of the formula.
In step 130, the range extender power control means may filter the power following target value determined in step 110 using the filter coefficient determined in step 120 to obtain a filtered following power value. In step 140, the range extender power control means may control the output power of the range extender based on the filtered follow-up power value.
For example, the output power value of the range extender may be equal to the filtered follow-up power value; or the output power value of the range extender can be a certain amplitude of floating up or floating down of the filtered following power value; alternatively, the output power value of the range extender may be the filtered follow-up power value multiplied by a certain coefficient.
When the power margin of the battery is larger, the filtering coefficient is also larger, the change of the filtered follow-up power value is smoother, and the change of the output power of the range extender is smoother, so that the working condition change of the range extender is smoother; when the power allowance of the battery is smaller, the filtering coefficient is smaller, the change of the filtered follow-up power value is faster, the change of the output power of the range extender is faster, and therefore the working condition of the range extender is changed faster.
In the embodiment of the present application, first, the power following target value of the range extender is determined according to the required power value of the electric device and the power parameter of the battery. The power following target not only considers the power consumption requirement of the electric device, but also considers the power parameter of the battery, so that the determined power following target is more reasonable. And then, determining a filter coefficient according to the power margin of the battery, filtering the power following target value by using the filter coefficient, and controlling the output power of the range extender according to the filtered following power value, wherein the filter coefficient is positively correlated with the power margin. When the power allowance is large, the charging requirement of the battery in a short time is generally small, and the power allowance of the battery can well meet the power consumption requirement of the power consumption device in a short time, so that a large filter coefficient can be used for filtering the power following target value, the working condition change of the range extender is smoother, the efficiency of the range extender can be improved, and the NVH performance of the power consumption device can be improved; when the power allowance is small, the charging requirement of the battery in a short time is generally large, and the power allowance of the battery may not well meet the power consumption requirement of the electric device in a short time, so that the power can be filtered along with the target value by using a small filter coefficient, the working condition of the range extender is changed more quickly, and the power consumption requirement of the electric device and the charging requirement of the battery can be met as much as possible.
In some embodiments, step 110 may include:
and determining a power following target value of the range extender according to the required power value of the electric device and the electric quantity balance power value of the battery, wherein the power following target value is positively correlated with the required power value and the electric quantity balance power value.
In this embodiment, the power follow-up value of the range extender is determined jointly from two parameters, i.e., the required power value of the electric device and the battery power balance value.
The balance power value of the battery can be understood as the power required by the battery to reach the balance target under the current state of charge. For example, assuming that the battery is at a charge balance target of 50SOC and the current battery charge is 40SOC, the battery charge balance power value may be the power required by the battery to reach 50SOC from 40 SOC. At this time, the range extender needs to operate at a higher power, and the range extender not only provides a part of electric energy to meet the power demand of the electric device, but also provides a part of electric energy to charge the battery, so that the battery can reach the electric quantity balance target. The further the current charge of the battery is from the charge balance target, the greater the charge balance power value.
The power following target value is positively correlated with the required power value and the electric quantity balance power value, the larger the required power value is, the larger the power following target value is, the larger the electric quantity balance power value is, and the larger the power following target value is.
For example, the power following target value may be equal to the sum of the required power value and the electric quantity balance power value, may be the sum of the required power value and the electric quantity balance power value, and then float up or float down by a certain magnitude, may be the sum of the required power value and the electric quantity balance power value, and then multiply by a certain coefficient, and so on.
In the embodiment, the power following value of the range extender is determined according to two parameters, namely the required power value of the power utilization device and the electric quantity balance power value of the battery, the influence of the parameter of the battery electric quantity balance on the working condition of the range extender is fully considered, and the determined power following value is more reasonable.
In some embodiments, step 120 may include:
in the case where the actual power value of the battery is in a rising state, a first filter coefficient is determined according to a discharge power margin of the battery, wherein the discharge power margin is equal to a difference between a maximum discharge power value of the battery and the actual power value, and the first filter coefficient is positively correlated with the discharge power margin.
And determining a second filter coefficient according to a charging power margin of the battery under the condition that the actual power value of the battery is in a descending state, wherein the charging power margin is equal to the difference value of the actual power value and the maximum charging power value of the battery, and the second filter coefficient is positively correlated with the charging power margin.
Step 130 specifically includes:
in the case where the actual power value is in the rising state, the power following target value is filtered using the first filter coefficient.
In the case where the actual power value is in a falling state, the power following target value is filtered using the second filter coefficient.
The discharge power margin of the battery, which may also be referred to as a remaining available discharge power margin, may be associated with an actual power value and a maximum discharge power value of the battery, and in particular, may be equal to the maximum discharge power value minus the actual power value of the battery.
The charge power margin of the battery, which may also be referred to as a remaining available charge power margin, may be related to an actual power value and a maximum charge power value of the battery, and in particular, may be equal to the actual power value minus the maximum charge power value of the battery.
In this embodiment, when the actual power value of the battery increases, the power following target value is filtered by using a first filter coefficient, the first filter coefficient may be determined according to the discharge power margin of the battery, specifically, a mapping relation table between the discharge power margin and the first filter coefficient may be obtained in advance by means of simulation, experiment, or the like, the first filter coefficient corresponding to each discharge power margin is recorded in the table, and after the current discharge power margin is calculated, the first filter coefficient corresponding to the discharge power margin may be found by looking up the table.
The calculation formula of the first filter coefficient can be obtained in advance through means of simulation, experiment and the like, in the formula, the discharge power margin can be used as an independent variable, the first filter coefficient can be used as a dependent variable, and after the current discharge power margin is calculated, the first filter coefficient corresponding to the current discharge power margin can be obtained through calculation of the formula.
The larger the discharge power margin is, the larger the first filter coefficient is, and the smoother the change of the filtered follow-up power value is, on the contrary, the smaller the discharge power margin is, the smaller the first filter coefficient is, and the faster the change of the filtered follow-up power value is.
When the actual power value of the battery is reduced, filtering the power following target value by using a second filter coefficient, wherein the second filter coefficient can be determined according to the charge power margin of the battery, specifically, a mapping relation table of the charge power margin and the second filter coefficient can be obtained in advance through means of simulation, experiment and the like, the second filter coefficient corresponding to each charge power margin is recorded in the table, and after the current charge power margin is calculated, the second filter coefficient corresponding to the charge power margin can be found through table lookup.
And a calculation formula of the second filter coefficient can be obtained in advance through means of simulation, experiment and the like, in the formula, the charging power margin can be used as an independent variable, the second filter coefficient can be used as a dependent variable, and after the current charging power margin is calculated, the second filter coefficient corresponding to the current charging power margin can be obtained through calculation of the formula.
The larger the charge power margin is, the larger the second filter coefficient is, and the smoother the change of the filtered follow-up power value is, on the contrary, the smaller the charge power margin is, the smaller the second filter coefficient is, and the faster the change of the filtered follow-up power value is.
For example, fig. 2 is a graph containing filtered follow power values provided in some embodiments of the present application, where a y-axis represents a power value, an x-axis represents time, and first, second, and third are three inflection points of a battery actual power variation process, before the inflection point, the battery actual power is in a rising state, at this time, a discharge power margin of the battery at this time can be known according to a difference between the battery actual power and a battery maximum discharge power, a first filter coefficient can be known according to the discharge power margin, and since the discharge power margin is gradually decreased, the first filter coefficient is also gradually decreased, and the filtered follow power value is changed quickly. After the inflection point, the actual power of the battery is in a descending state, at this time, the charging power margin of the battery at this time can be known according to the difference between the actual power of the battery and the maximum charging power of the battery, the second filter coefficient can be known according to the charging power margin, because the charging power margin is gradually increased, the first filter coefficient is also gradually increased, and the follow power value after filtering is slowly changed.
In the embodiment, the current discharging power margin or charging power margin is determined according to the rising or falling state of the actual power value of the battery, so that a first filter coefficient is determined according to the discharging power margin, or a second filter coefficient is determined according to the charging power margin, then, the actual power value of the battery is filtered according to the first filter coefficient when the actual power value of the battery is in the rising state, and the actual power value of the battery is filtered according to the second filter coefficient when the actual power value of the battery is in the falling state, so that the filtered power following value can be more reasonable.
In some embodiments, step 140 may comprise:
and under the condition that the discharging power allowance of the battery is larger than a first threshold value and the charging power allowance of the battery is larger than a second threshold value, controlling the output power of the range extender according to the filtered follow power value.
The first threshold may be a preset threshold, and the second threshold may also be a preset threshold.
When the discharging power allowance of the battery is larger than the first threshold and the charging power allowance of the battery is larger than the second threshold, the power allowance of the battery at the moment is sufficient, the battery is in a normal working condition at the moment, and at the moment, the range extender power control device can directly control the output power of the range extender according to the filtered follow-up power value.
In this embodiment, since the power margin of the battery is still sufficient, the output power of the range extender is directly controlled according to the filtered follow-up power value, and the output power of the range extender can be ensured to better meet the requirements of the electric device and the battery.
In some embodiments, after step 140, the method may further comprise:
under the condition that the discharge power margin of the battery is smaller than or equal to a first threshold value, determining the larger value of a first power reference value and the filtered following power value as a first power adjusting value, wherein the first power reference value is the difference value between the required power value and the maximum discharge power value of the battery;
and controlling the output power of the range extender according to the first power adjustment value.
When the discharge power margin of the battery is less than or equal to the first threshold, it indicates that the electric quantity of the battery at this time is less than sufficient, the battery cannot provide more sufficient electric energy at this time, and the demand of the battery for charging is large, for example, the discharge power margin of the battery is close to zero. At this time, if the output power of the range extender is directly controlled according to the filtered follow-up power value, it may not be ensured that the output power of the range extender meets the power requirement of the electric device.
In view of this, the range extender power control device can suitably increase the output power of the range extender to meet the power requirement of the electric device as much as possible.
Illustratively, the filtered follow power value may be related to (demand power value-battery maximum discharge power value)(+)) And taking the larger value as a first power adjustment value, and determining the first power adjustment value as the output power value of the range extender.
Of course, the output power value of the range extender may also be a value obtained by floating the first power adjustment value up or down by a certain amplitude, or may also be a value obtained by multiplying the first power adjustment value by a certain coefficient, which is not limited herein.
In this embodiment, it is proposed that when the discharge power margin is less than or equal to the first threshold, the output power of the range extender is appropriately increased so that the output power of the range extender is more reasonable.
In some embodiments, after step 140, the method may further comprise:
determining a smaller value of a second power reference value and the filtered follow-up power value as a second power adjustment value under the condition that the charging power margin of the battery is smaller than or equal to the second threshold, wherein the second power reference value is a difference value between the required power value and the maximum charging power value of the battery;
and controlling the output power of the range extender according to the second power adjustment value.
When the charging power margin of the battery is less than or equal to the second threshold, it indicates that the electric quantity of the battery at this time is sufficient, the battery can provide sufficient electric energy at this time, and the requirement of the battery for charging is small, for example, the charging power margin of the battery is close to zero. At this time, if the output power of the range extender is directly controlled according to the filtered follow-up power value, the output power of the range extender may be excessive.
Therefore, the range extender power control device can appropriately reduce the output power of the range extender so as to meet the power requirement of kinetic energy recovery as much as possible.
For example, the filtered follow power value may be compared to (demand power value-battery maximum charge power value)(-)) And taking the small value as a second power adjustment value, and determining the second power adjustment value as the output power value of the range extender.
Of course, the output power value of the range extender may also be a value obtained by floating the second power adjustment value up or down by a certain amplitude, or may also be a value obtained by multiplying the second power adjustment value by a certain coefficient, which is not limited herein.
In this embodiment, it is proposed that when the charging power margin is less than or equal to the second threshold, the output power of the range extender is appropriately reduced so that the output power of the range extender is more reasonable.
For example, fig. 3 is a graph containing filtered follow power values provided by further embodiments of the present application, where the y-axis represents a power value, the x-axis represents time, and the r are stages of remaining unchanged actual power values of the battery, where when a discharge power margin of the battery is less than or equal to a first threshold, a first power value may be determined by a difference between a required power value and a maximum discharge power value of the battery, then the first power value and the filtered follow power value are compared, a smaller value is used as a first power adjustment value, output power of the range extender is controlled, when a charge power margin of the battery is less than or equal to a second threshold, a second power value may be determined by a difference between the required power value and a maximum charge power value of the battery, then the second power value and the filtered follow power value are compared, a larger value is used as a second power adjustment value, and controlling the output power of the range extender.
A specific example is provided below with reference to fig. 4 to describe the range extender power control method according to the embodiment of the present application.
As shown in fig. 4, when the discharging power margin is greater than the first threshold and the charging power margin is greater than the second threshold, the required power value and the electric quantity balance power value are added to obtain a power following target value, the power following target value is filtered according to a filter coefficient found by the power margin of the battery to obtain a filtered following power value, and the filtered following power value is used to control the output power of the range extender.
When the discharge power margin is smaller than or equal to a first threshold value, calculating a difference value between the required power value and the maximum discharge power of the battery to obtain a first power reference value, comparing the first power reference value with the filtered follow power value, determining a larger value as a first power adjustment value, and controlling the output power of the range extender through the first power adjustment value.
And when the charging power margin is smaller than or equal to a second threshold value, calculating a difference value between the required power value and the maximum charging power of the battery to obtain a second power reference value, comparing the second power reference value with the filtered following power value, determining a smaller value as a second power adjustment value, and controlling the output power of the range extender through the second power adjustment value.
In summary, in the power control method for the range extender in the embodiment of the present application, the filtered follow power value is used to control the output power of the range extender, so that the purpose of improving the efficiency of the range extender and improving the NVH performance of the electric device can be achieved.
Fig. 5 is a schematic structural diagram of a range extender power control device according to an embodiment of the present application. As shown in fig. 5, the range extender power control device 500 includes:
a first determining module 510, configured to determine a power following target value of the range extender according to a required power value of the power consuming device and a power parameter of the battery;
a second determining module 520, configured to determine a filter coefficient according to a power margin of the battery, where the filter coefficient is positively correlated to the power margin;
a filtering module 530, configured to filter the power following target value by using a filtering coefficient to obtain a filtered following power value;
and the first control module 540 is configured to control the output power of the range extender according to the filtered follow power value.
Optionally, the first determining module 510 is specifically configured to:
and determining a power following target value of the range extender according to the required power value of the electric device and the electric quantity balance power value of the battery, wherein the power following target value is positively correlated with the required power value and the electric quantity balance power value.
Optionally, the second determining module 520 is specifically configured to:
determining a first filter coefficient according to a discharge power margin of the battery under the condition that the actual power value of the battery is in a rising state, wherein the discharge power margin is equal to a difference value between the maximum discharge power value and the actual power value of the battery, and the first filter coefficient is positively correlated with the discharge power margin;
determining a second filter coefficient according to a charge power margin of the battery under the condition that the actual power value of the battery is in a descending state, wherein the charge power margin is equal to a difference value of the actual power value and the maximum charge power value of the battery, and the second filter coefficient is positively correlated with the charge power margin;
the filtering module 530 is specifically configured to:
in the case where the actual power value is in the rising state, the power following target value is filtered using the first filter coefficient.
In the case where the actual power value is in a falling state, the power following target value is filtered using the second filter coefficient.
Optionally, the first control module 540 is specifically configured to:
and under the condition that the discharging power allowance of the battery is larger than a first threshold value and the charging power allowance of the battery is larger than a second threshold value, controlling the output power of the range extender according to the filtered follow power value.
Optionally, the range extender power control device 500 further includes:
and a third determining module, configured to, after the power target value is filtered by using the filter coefficient to obtain a filtered following power value, determine, as the first power adjustment value, a larger value of the first power reference value and the filtered following power value when a discharge power margin of the battery is less than or equal to a first threshold, where the first power reference value is a difference between the required power value and a maximum discharge power value of the battery.
And the second control module is used for controlling the output power of the range extender according to the first power adjustment value.
Optionally, the range extender power control device 500 further includes:
a fourth determining module, configured to determine, after filtering the power target value by using the filtering coefficient to obtain a filtered following power value, a smaller value of a second power reference value and the filtered following power value as a second power adjustment value when a charging power margin of the battery is less than or equal to a second threshold, where the second power reference value is a difference between the required power value and a maximum charging power value of the battery;
and the third control module is used for controlling the output power of the range extender according to the second power adjustment value.
Each module/unit in the apparatus shown in fig. 5 has a function of implementing each step in the method embodiment, and can achieve the corresponding technical effect, and for brevity, no further description is given here.
As shown in fig. 6, an electric device 600 includes a range extender power control device 610, where the range extender power control device 610 has the same modules/units as the range extender power control device shown in fig. 5, and in particular, refer to the embodiment shown in fig. 5.
The electric device shown in fig. 6 has functions for implementing each step in the method embodiment, and can achieve corresponding technical effects, and for brevity, no further description is given here.
Fig. 7 shows a hardware structure diagram of an electronic device provided in an embodiment of the present application.
As shown in fig. 7, the electronic device may include a processor 701 and a memory 702 storing computer program instructions.
Specifically, the processor 701 may include a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to implement the embodiments of the present Application.
Specifically, the processor 701 may include a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to implement the embodiments of the present Application.
In one example, the Memory 702 may be a Read Only Memory (ROM). In one example, the ROM may be mask programmed ROM, programmable ROM (prom), erasable prom (eprom), electrically erasable prom (eeprom), electrically rewritable ROM (earom), or flash memory, or a combination of two or more of these.
The processor 701 reads and executes the computer program instructions stored in the memory 702 to implement any one of the methods for controlling the power of the range extender in the embodiments described above, and achieve the corresponding technical effects achieved by the method/step executed by the examples shown in fig. 1 to fig. 3, which are not described herein again for brevity.
In one example, the electronic device may also include a communication interface 703 and a bus 710. As shown in fig. 7, the processor 701, the memory 702, and the communication interface 703 are connected by a bus 710 to complete mutual communication.
The communication interface 703 is mainly used for implementing communication between modules, apparatuses, units and/or devices in this embodiment of the application.
It should be noted that the electronic devices in the embodiments of the present application include the mobile electronic devices and the non-mobile electronic devices described above.
The electronic device may execute the range extender power control method in the embodiment of the present application, so as to implement the range extender power control method described in conjunction with fig. 1 to 4.
In combination with the range extender power control method in the above embodiments, the embodiments of the present application can provide a vehicle to implement any one of the range extender power control methods in the above embodiments.
In addition, in combination with the range extender power control method in the foregoing embodiment, an embodiment of the present application may provide a computer storage medium, where the computer storage medium stores computer program instructions; the computer program instructions, when executed by a processor, implement any of the range extender power control methods of the embodiments described above.
It is to be understood that the present application is not limited to the particular arrangements and instrumentality described above and shown in the attached drawings. A detailed description of known methods is omitted herein for the sake of brevity. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present application are not limited to the specific steps described and illustrated, and those skilled in the art can make various changes, modifications, and additions or change the order between the steps after comprehending the spirit of the present application.
The functional blocks shown in the above-described structural block diagrams may be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic Circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like. When implemented in software, the elements of the present application are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine-readable medium or transmitted by a data signal carried in a carrier wave over a transmission medium or a communication link. A "machine-readable medium" may include any medium that can store or transfer information. Examples of a machine-readable medium include electronic circuits, semiconductor memory devices, ROM, flash memory, Erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, Radio Frequency (RF) links, and so forth. The code segments may be downloaded via computer networks such as the internet, intranet, etc.
It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, the present application is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in an order different from the order in the embodiments, or may be performed simultaneously.
Aspects of the present disclosure are described above with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of 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, 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, enable the implementation of the functions/acts specified in the flowchart and/or block diagram block or blocks. Such a processor may be, but is not limited to, a general purpose processor, a special purpose processor, an application specific processor, or a field programmable logic circuit. It will also be understood that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware for performing the specified functions or acts, or combinations of special purpose hardware and computer instructions.
As described above, only the specific embodiments of the present application are provided, and it can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system, the module and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present application, and these modifications or substitutions should be covered within the scope of the present application.
Claims (10)
1. A method for controlling power to a range extender, comprising:
determining a power following target value of the range extender according to the required power value of the electric device and the power parameter of the battery;
determining a filter coefficient according to the power margin of the battery, wherein the filter coefficient is positively correlated with the power margin;
filtering the power following target value by using the filtering coefficient to obtain a filtered following power value;
and controlling the output power of the range extender according to the filtered follow-up power value.
2. The method according to claim 1, wherein the determining the power following target value of the range extender according to the power demand value of the electric device and the power parameter of the battery comprises:
according to the demand power value of the electric device and the electric quantity balance power value of the battery, a power following target value of the range extender is determined, and the power following target value is positively correlated with the demand power value and the electric quantity balance power value.
3. The method of claim 1, wherein determining filter coefficients based on the power margin of the battery comprises:
determining a first filter coefficient according to a discharge power margin of the battery when the actual power value of the battery is in a rising state, wherein the discharge power margin is equal to a difference value between a maximum discharge power value of the battery and the actual power value, and the first filter coefficient is positively correlated with the discharge power margin;
determining a second filter coefficient according to a charging power margin of the battery when the actual power value of the battery is in a descending state, wherein the charging power margin is equal to a difference value between the actual power value and a maximum charging power value of the battery, and the second filter coefficient is positively correlated with the charging power margin;
the filtering the power following target value using the filter coefficient includes:
filtering the power following target value using the first filter coefficient under the condition that the actual power value is in a rising state;
and filtering the power following target value by using the second filter coefficient under the condition that the actual power value is in a descending state.
4. The method of any of claims 1-3, wherein controlling the output power of the range extender based on the filtered follow-up power value comprises:
and under the condition that the discharging power allowance of the battery is larger than a first threshold value and the charging power allowance of the battery is larger than a second threshold value, controlling the output power of the range extender according to the filtered following power value.
5. The method of claim 4, wherein after said filtering the power target value using the filter coefficient to obtain a filtered follow power value, the method further comprises:
determining a larger value of a first power reference value and the filtered follow-up power value as a first power adjustment value when a discharge power margin of the battery is less than or equal to the first threshold, wherein the first power reference value is a difference value between the required power value and a maximum discharge power value of the battery;
and controlling the output power of the range extender according to the first power adjusting value.
6. The method of claim 4, wherein after said filtering the power target value using the filter coefficient to obtain a filtered follow power value, the method further comprises:
determining a smaller value of a second power reference value and the filtered follow-up power value as a second power adjustment value when the charging power margin of the battery is less than or equal to the second threshold, wherein the second power reference value is a difference value between the required power value and a maximum charging power value of the battery;
and controlling the output power of the range extender according to the second power adjusting value.
7. A range extender power control apparatus, comprising:
the first determining module is used for determining a power following target value of the range extender according to the required power value of the electric device and the power parameter of the battery;
a second determination module, configured to determine a filter coefficient according to a power margin of the battery, where the filter coefficient is positively correlated with the power margin;
the filtering module is used for filtering the power following target value by using the filtering coefficient so as to obtain a filtered following power value;
and the first control module is used for controlling the output power of the range extender according to the filtered follow power value.
8. An electric device comprising the range extender power control device of claim 7.
9. An electronic device, comprising: a processor, and a memory storing computer program instructions;
the processor reads and executes the computer program instructions to implement the range extender power control method of any of claims 1 to 6.
10. A vehicle implementing the range extender power control method of any one of claims 1 to 6.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017211035A1 (en) * | 2016-06-08 | 2017-12-14 | 北京新能源汽车股份有限公司 | Method and device for controlling and managing power of range extended electric vehicle |
| CN110040004A (en) * | 2019-04-01 | 2019-07-23 | 一汽-大众汽车有限公司 | A kind of the power follow-up control method and system of range-extended electric automobile |
| CN112193234A (en) * | 2020-09-18 | 2021-01-08 | 联合汽车电子有限公司 | Range extender control method, control system and storage medium |
| CN113291165A (en) * | 2021-06-30 | 2021-08-24 | 郑州日产汽车有限公司 | Power following real-time control method for extended range automobile |
| CN113386626A (en) * | 2021-08-04 | 2021-09-14 | 上海洛轲智能科技有限公司 | Power control method and device based on battery power change rate and vehicle control unit |
-
2021
- 2021-12-28 CN CN202111629439.7A patent/CN114162109B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017211035A1 (en) * | 2016-06-08 | 2017-12-14 | 北京新能源汽车股份有限公司 | Method and device for controlling and managing power of range extended electric vehicle |
| CN110040004A (en) * | 2019-04-01 | 2019-07-23 | 一汽-大众汽车有限公司 | A kind of the power follow-up control method and system of range-extended electric automobile |
| CN112193234A (en) * | 2020-09-18 | 2021-01-08 | 联合汽车电子有限公司 | Range extender control method, control system and storage medium |
| CN113291165A (en) * | 2021-06-30 | 2021-08-24 | 郑州日产汽车有限公司 | Power following real-time control method for extended range automobile |
| CN113386626A (en) * | 2021-08-04 | 2021-09-14 | 上海洛轲智能科技有限公司 | Power control method and device based on battery power change rate and vehicle control unit |
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