CN115230493A - Control method, system and equipment of range-extending motor home and computer readable storage medium - Google Patents
Control method, system and equipment of range-extending motor home and computer readable storage medium Download PDFInfo
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- CN115230493A CN115230493A CN202211011244.0A CN202211011244A CN115230493A CN 115230493 A CN115230493 A CN 115230493A CN 202211011244 A CN202211011244 A CN 202211011244A CN 115230493 A CN115230493 A CN 115230493A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
- B60L50/62—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles charged by low-power generators primarily intended to support the batteries, e.g. range extenders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a control method, a system and equipment of a range-extended motor home and a computer readable storage medium, and relates to the technical field of vehicle control. The method comprises the following steps: acquiring the current time and the residual electric quantity of the extended range motor home, and judging whether the current time is in a preset rest period; if the current moment is in a preset rest period, judging whether the residual electric quantity is higher than a preset minimum electric quantity threshold value; and if the residual electric quantity is not higher than a preset minimum low electric quantity threshold value, controlling a range extender of the range-extended motor home to operate at a preset low power until the residual electric quantity reaches a preset maximum low electric quantity threshold value. The invention improves the safety and the comfort of the user of the motor home in the rest period.
Description
Technical Field
The invention relates to the technical field of vehicle control, in particular to a method, a system and equipment for controlling a range-extended motor home and a computer-readable storage medium.
Background
In recent years, with the improvement of living standard of people, the touring car is gradually popularized. And the hydropower is a configuration which is very concerned by all touring car users, and an adequate hydropower system can make long-distance travel more agreeable and comfortable. A pure electric vehicle type motor home with new energy obtains electric energy by utilizing a high-voltage battery energy source of the whole vehicle. However, in special situations such as non-camp areas in remote areas or no available charging piles nearby, it may be difficult for users to charge the entire vehicle in time. Thereby the car as a house can't lead to under the unable condition of replenishing the electric energy fast at night, can lead to air conditioner, light, refrigerator etc. in the car as a house to use with electrical apparatus unable, influence the security and the travelling comfort of car as a house user when the rest.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a control method of a range-extended motor home, and aims to solve the technical problem that the safety and comfort of a motor home user during rest are influenced under the condition that electric energy cannot be rapidly supplemented.
In order to achieve the above object, the present invention provides a method for controlling a range-extended caravan, which comprises the following steps:
acquiring the current time and the residual electric quantity of the extended range motor home, and judging whether the current time is in a preset rest time period;
if the current moment is in a preset rest period, judging whether the residual electric quantity is higher than a preset minimum electric quantity threshold value;
and if the residual electric quantity is not higher than a preset minimum electric quantity threshold value, controlling a range extender of the range-extended motor home to operate at a preset low power until the residual electric quantity reaches a preset maximum low electric quantity threshold value.
Optionally, the step of controlling a range extender of the range-extended motor home to operate at a preset low power includes:
controlling a range extender of the range-extended motor home to operate at a preset low power, and acquiring a current noise decibel value of the range-extended motor home;
inquiring a preset decibel difference value and a correction coefficient mapping table according to the decibel difference value between the current noise decibel value and a preset decibel threshold value to obtain a corresponding target correction coefficient;
and correcting the preset low power according to the target correction coefficient to obtain a new preset low power, and controlling a range extender of the range-extended motor home to operate at the new preset low power.
Optionally, when the remaining power is not higher than a preset minimum power threshold, before the step of controlling the range extender of the range-extended motor home to operate at a preset low power until the remaining power reaches a preset maximum power threshold, the method further includes:
acquiring the current power consumption of the range-extended motor home and the interval duration between the current time and the ending time of a preset rest period;
obtaining estimated power consumption according to the current power consumption and the interval duration;
and obtaining the preset maximum low electric quantity threshold according to the preset minimum low electric quantity threshold and the estimated electric consumption.
Optionally, after the step of obtaining the estimated power consumption according to the current power consumption and the interval duration, the method includes:
obtaining corresponding charging time according to the estimated power consumption and the preset low power;
judging whether the charging time exceeds a preset time threshold or not;
and if the charging time exceeds a preset time threshold, obtaining new estimated power consumption according to the preset time threshold and the preset low power.
Optionally, before the step of obtaining the current time and the remaining power of the range-extended motor home and judging whether the current time is in a preset rest period, the method includes:
when a preset camping instruction of a user is received, judging whether the vehicle state of the range-extended caravan meets a preset camping condition or not;
if the vehicle state meets the preset camping condition, executing the following steps: the method comprises the steps of obtaining the current time and the residual electric quantity of the range-extended motor home, and judging whether the current time is in a preset rest time period.
Optionally, the vehicle state includes a current vehicle speed, a current gear and an accelerator pedal opening, and the step of determining whether the vehicle state of the extended range motor home meets a preset camping condition includes:
judging whether the current vehicle speed is lower than a preset minimum vehicle speed, whether the current gear is a parking gear and whether the opening of an accelerator pedal is lower than a preset minimum opening;
and if the current speed is lower than the preset minimum speed, the current gear is a parking gear, and the opening degree of an accelerator pedal is lower than the preset minimum opening degree, the vehicle state of the range-extended motor home is judged to meet the preset camping condition.
Optionally, after the step of obtaining the current time and the remaining power and determining whether the current time is in a preset rest period, the method further includes:
if the current moment is not in a preset rest period, judging whether the residual electric quantity is higher than a preset minimum high electric quantity threshold value;
and if the residual electric quantity is not higher than a preset minimum high electric quantity threshold value, controlling a range extender of the range-extended motor home to operate at a preset high power until the residual electric quantity reaches a preset maximum high electric quantity threshold value.
In addition, in order to achieve the above object, the present invention further provides a control system of a range-extended caravan, including:
the first judgment module is used for acquiring the current time and the residual electric quantity of the extended range motor home and judging whether the current time is in a preset rest time period;
the second judgment module is used for judging whether the residual electric quantity is higher than a preset minimum electric quantity threshold value or not if the current moment is in a preset rest time period;
and the control module is used for controlling the extended-range motor home to run at preset low power until the residual electric quantity reaches a preset maximum low-electric-quantity threshold value when the residual electric quantity is not higher than the preset minimum low-electric-quantity threshold value.
In addition, to achieve the above object, the present invention also provides a control apparatus for a range-extended motor home, including: memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the method as described in any of the above.
In addition, to achieve the above object, the present invention also provides a computer readable storage medium, on which a control program of a range-extended caravan is stored, the control program of the range-extended caravan realizing the steps of the method as described in any one of the above when executed by a processor.
The invention provides a control method of a range-extended motor home, which comprises the steps of obtaining the current time and the residual electric quantity of the range-extended motor home, and judging whether the current time is in a preset rest time period; if the current moment is in a preset rest period, judging whether the residual electric quantity is higher than a preset minimum electric quantity threshold value; and if the residual electric quantity is not higher than a preset minimum electric quantity threshold value, controlling a range extender of the range-extended motor home to operate at a preset low power until the residual electric quantity reaches a preset maximum low electric quantity threshold value. Therefore, the problem of insufficient electric quantity in a rest period can be solved by adopting the range extender of the range-extending motor home to generate electricity, and on one hand, the range extender of the range-extending motor home is controlled to operate at the preset low power, so that the noise generated when the range extender of the range-extending motor home operates at the preset low power can be ensured to be smaller, and the rest state of a user is prevented from being influenced; on the other hand, the remaining electric quantity of the range-extended motor home can be maintained in a lower electric quantity interval, and the working time of the range extender can be reduced, so that the safety and the comfort of a motor home user in a rest period are improved.
Drawings
FIG. 1 is a schematic diagram of an apparatus architecture of a hardware operating environment according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a control method of the range-extended motor home according to the first embodiment of the invention;
fig. 3 is a flowchart illustrating a control method for a range-extended caravan according to a second embodiment of the present invention;
fig. 4 is a schematic flow chart of an alternative embodiment of the control method of the range-extended motor home of the present invention;
fig. 5 is a schematic structural diagram of a control system of a range-extended motor home according to an embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone.
The terms "first" and "second," and the like, in the description and in the claims of the embodiments of the present application are used for distinguishing between different objects and not for describing a particular order of the objects. For example, the first target object and the second target object, etc. are specific sequences for distinguishing different target objects, rather than describing target objects.
In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In recent years, with the improvement of living standard of people, the touring car is gradually popularized. And the hydropower is a configuration which is very concerned by all motor home users, and an adequate hydropower system can make long-distance travel more agreeable and comfortable. A pure electric vehicle type motor home with new energy obtains electric energy by utilizing a high-voltage battery energy source of the whole vehicle. However, in special situations such as non-camp areas in remote areas or no available charging piles nearby, it may be difficult for users to charge the entire car in time. Thereby the car as a house can't supply under the condition of electric energy fast at night, can lead to air conditioner, light, refrigerator etc. in the car as a house to use with electrical apparatus unable, influence the security and the travelling comfort of car as a house user in the rest period.
The car as a house of traditional power then is usually when the parking power consumption, obtains the electric energy through modes such as external generator, installation solar panel, increase 24V storage battery, and the convenience in the use is relatively poor with the security.
The following describes the control method of the range-extended caravan in accordance with some embodiments:
the range-extended motor home is a motor home provided with a range extender, and is an electric vehicle which uses other energy sources (such as gasoline) to supply electric energy under the condition of insufficient battery power. The main working characteristics are that the electric vehicle works in a pure electric mode under most conditions and works in a range extending mode under few conditions, namely, the electric energy generated by the range extender is supplied to a motor for driving through a storage battery and can also be supplied to a battery for charging.
The execution main body of the Control method of the range-extended recreational Vehicle can be Control equipment of the range-extended recreational Vehicle, and the Control equipment of the range-extended recreational Vehicle can be equipment such as a VCU (Vehicle Control Unit), a PC (Personal Computer), a tablet Computer, a portable Computer or a server.
The method comprises the steps of obtaining the current time and the residual electric quantity of the range-extended motor home, and judging whether the current time is in a preset rest period; if the current moment is in a preset rest period, judging whether the residual electric quantity is higher than a preset minimum electric quantity threshold value; and if the residual electric quantity is not higher than a preset minimum electric quantity threshold value, controlling a range extender of the range-extended motor home to operate at a preset low power until the residual electric quantity reaches a preset maximum low electric quantity threshold value. Therefore, the power generation is carried out by adopting the range extender of the range-extending motor home, so that the problem of insufficient electric quantity in the rest period can be solved, and on one hand, the range extender of the range-extending motor home is controlled to operate at the preset low power, so that the noise generated when the range extender of the range-extending motor home operates at the preset low power can be ensured to be smaller, and the rest state of a user is prevented from being influenced; on the other hand, the remaining electric quantity of the range-extended motor home can be maintained in a lower electric quantity interval, and the working time of the range extender can be shortened, so that the safety and the comfort of the motor home user in the rest period are improved.
As shown in fig. 1, fig. 1 is a schematic device structure diagram of a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 1, the control apparatus of the range-extended recreational vehicle may include: a processor 1001, such as a Central Processing Unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to implement connection communication among these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a WIreless interface (e.g., a WIreless-FIdelity (WI-FI) interface). The Memory 1005 may be a Random Access Memory (RAM) Memory, or may be a Non-Volatile Memory (NVM), such as a disk Memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the configuration of the apparatus shown in figure 1 does not constitute a limitation of the control apparatus of the range-extending motor home, and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is a kind of computer storage medium, may include therein an operating system, a network communication module, a user interface module, and a control application program of the extended range motor home.
In the apparatus shown in fig. 1, the processor 1001 may be configured to call a control application of the extended range car as stored in the memory 1005, and perform operations of the control method of the extended range car as in the following embodiments.
Referring to fig. 2, fig. 2 is a schematic flow chart of a control method of a range-extended motor home according to a first embodiment of the present invention.
The first embodiment of the invention provides a control method of a range-extended caravan, which comprises the following steps of:
step S100, acquiring the current time and the residual electric quantity of the extended range motor home, and judging whether the current time is in a preset rest period;
the extended range motor home can acquire time information from a T-BOX (Telematics BOX) through a vehicle control unit and determine the current time. The SOC (State Of Charge) Of the range-extended motor home can be acquired through the vehicle control unit, so that the remaining electric quantity Of the range-extended motor home is determined. And then judging whether the current moment is in a preset rest period. Wherein the preset rest period may be a rest period preset by the manufacturer, such as 20:00 to 08 on day: 00, or a rest period set by the user. It is of course understood that the preset rest period may be plural, and the preset rest period is not necessarily limited to night, for example, the preset rest period may be 12:00 to 15:00.
further, before the step of obtaining the current time and the remaining capacity of the extended range motor home in step S100, and determining whether the current time is in the preset rest period, the method includes:
step S110, when a preset camping instruction of a user is received, judging whether the vehicle state of the range-extended motor home meets a preset camping condition;
step S120, if the vehicle state satisfies a preset camping condition, executing the steps of: the method comprises the steps of obtaining the current time and the residual electric quantity of the range-extended motor home, and judging whether the current time is in a preset rest time period.
Specifically, a corresponding camping mode button may be set on the range-extended caravan, and when the user presses the camping mode button, it is considered that a preset camping instruction of the user is received. Certainly, the user may also issue the preset camping instruction in other manners, for example, issue the preset camping instruction through a terminal device (such as a smart phone, a tablet computer, and the like) in communication connection with the control device of the range-extended motor home.
When a preset camping instruction of a user is received, the vehicle state of the extended range motor home can be acquired, wherein the vehicle state can comprise information such as the current vehicle speed, the current gear, the opening degree of an accelerator pedal and the like. And then judging whether the vehicle state meets a preset camping condition, wherein the preset camping condition is a condition for judging whether the vehicle is in a stop running state, such as that the vehicle speed is zero for a long time, the current gear is a parking gear, and the like, so as to determine whether the range-extended motor home is still in a running state. If the vehicle state meets the preset camping condition, it indicates that the range-extended motor home is in the stop running state, and step S100 is executed. If the vehicle state does not meet the preset camping condition, it is indicated that the range-extended motor home is still in the running state, and the preset camping command may be mistakenly touched, the step S100 is not executed.
This embodiment is through when receiving user's preset camping instruction, right the vehicle state of journey-extended car as a house judges, and then confirms whether the vehicle state satisfies preset camping condition to can avoid because circumstances such as maloperation disturb the normal driving of vehicle.
Further, the vehicle state includes a current vehicle speed, a current gear and an accelerator pedal opening, and the step S110 of determining whether the vehicle state of the extended range motor home meets a preset camping condition includes:
step S111, judging whether the current vehicle speed is lower than a preset minimum vehicle speed, whether the current gear is a parking gear, and whether the opening of an accelerator pedal is lower than a preset minimum opening;
and S112, if the current speed is lower than a preset minimum speed, the current gear is a parking gear, and the opening of the accelerator pedal is lower than a preset minimum opening, determining that the vehicle state of the extended range motor home meets a preset camping condition.
The vehicle state of the extended range motor home may include a current vehicle speed, a current gear, and an accelerator pedal opening. Then, whether the current vehicle speed is lower than a preset minimum vehicle speed (e.g. 3km/h, 5km/h, etc.), whether the current gear is a parking gear (i.e. P gear), and whether the accelerator pedal opening is lower than a preset minimum opening (e.g. 3 °, 5 °, etc.) may be respectively determined. If the current speed of a motor home is lower than the preset minimum speed of a motor home, the current gear is a parking gear, and the accelerator pedal opening is lower than the preset minimum opening, the current speed of a motor home and the accelerator pedal opening are extremely small under the condition that the range-extended motor home is in the parking gear, at the moment, the range-extended motor home can be determined to be in the stop running state, and then the vehicle state of the range-extended motor home is determined to meet the preset camping condition. And if the current speed is not lower than the preset minimum speed, and/or the current gear is not the parking gear, and/or the opening of the accelerator pedal is not lower than the preset minimum opening, judging that the vehicle state of the range-extended motor home does not meet the preset camping condition.
In this embodiment, the current speed, the current gear and the accelerator pedal opening of the range-extended motor home are determined, so as to determine whether the range-extended motor home is in a running state, and further determine that the vehicle state of the range-extended motor home does not meet the preset camping condition when the range-extended motor home is in the running state, so that the accuracy of determining whether the vehicle state of the range-extended motor home meets the preset camping condition can be effectively improved.
Step S200, if the current moment is in a preset rest period, judging whether the residual electric quantity is higher than a preset minimum electric quantity threshold value;
if the current time is in the preset rest time period, the extended range motor home is in the state of stopping running, and a user is ready to rest or has already rested, then whether the residual electric quantity is higher than a preset minimum electric quantity threshold value or not can be judged. The preset minimum low-power threshold is a minimum threshold of a preset low-power interval, for example, a preset low-power area is 15% -40% of rated capacity of a power battery of the range-extended motor home, and the preset minimum low-power threshold is 15%. If the current moment is not in the preset rest time period, which indicates that the user does not rest, the remaining electric quantity can be maintained in a higher electric quantity interval, so as to meet the power demand of the vehicle in the running process.
And step S300, if the residual electric quantity is not higher than a preset minimum electric quantity threshold value, controlling a range extender of the range-extended motor home to operate at a preset low power until the residual electric quantity reaches a preset maximum low electric quantity threshold value.
Specifically, the preset low power is a power value when the range extender operation noise of the range extender car is smaller than a preset decibel threshold (e.g., 40 decibels, 43 decibels, 45 decibels, etc.), for example, 20%, 25%, 30% of the rated power, etc. When the residual electric quantity is not higher than the preset minimum electric quantity threshold value, the range extender of the range-extended motor home is controlled to operate at the preset low power, so that the noise generated when the range extender of the range-extended motor home operates at the preset low power can be ensured to be low, and the rest state of a user is prevented from being influenced. The preset maximum low power threshold is a maximum threshold of a preset low power interval, for example, the preset low power area is 15% -40% of the rated capacity of the power battery, and the preset maximum low power threshold is 40%. And the range extender of the range-extended motor home runs at a preset low power until the residual electric quantity reaches a preset maximum low electric quantity threshold, and the range extender can stop running when the residual electric quantity reaches the preset maximum low electric quantity threshold. Because the power consumption of the recreational vehicle in the stop driving state is far lower than the power consumption in the driving process, the residual power of the range-extended recreational vehicle can be maintained in a preset low-power interval, the problem that the power is insufficient in the rest period is solved, the running noise and the working time of the range extender are reduced as far as possible, and the rest of a user is prevented from being influenced.
In the first embodiment of the invention, the current time and the residual electric quantity of the extended range motor home are obtained, and whether the current time is in a preset rest time period or not is judged; if the current moment is in a preset rest period, judging whether the residual electric quantity is higher than a preset minimum electric quantity threshold value; and if the residual electric quantity is not higher than a preset minimum electric quantity threshold value, controlling a range extender of the range-extended motor home to operate at a preset low power until the residual electric quantity reaches a preset maximum low electric quantity threshold value. Thereby this embodiment adopts the range extender of the range extending motor home to generate electricity and can has solved the not enough problem of rest period electric quantity, and on the one hand control the range extender of range extending motor home is in order to predetermine low power operation, can guarantee the noise that the range extender of range extending motor home produced when predetermineeing low power operation is less, avoids influencing user's rest state, and on the other hand can maintain the residual capacity of range extending motor home maintains in lower electric quantity interval, also can reduce the operating time length of range extender to the security and the travelling comfort of motor home user in rest period have been improved.
Further, referring to fig. 3, a second embodiment of the present invention provides a method for controlling a range-extended motor home, based on the above embodiment shown in fig. 2, the step of controlling a range extender of the range-extended motor home to operate at a preset low power in step S300 includes:
step S310, controlling a range extender of the range-extended motor home to operate at a preset low power, and collecting a current noise decibel value of the range-extended motor home;
step S311, inquiring a preset decibel difference value and a correction coefficient mapping table according to the decibel difference value between the current noise decibel value and a preset decibel threshold value to obtain a corresponding target correction coefficient;
and step S312, correcting preset low power according to the target correction coefficient to obtain new preset low power, and controlling a range extender of the range-extended motor home to operate at the new preset low power.
The range extender usually brings certain noise in the operation process, and the noise decibel of the range extender is influenced by the operation power of the range extender, the maintenance state of the range extender, the operation time, the structure of the range extender and other factors.
The embodiment controls the range extender of the range-extended motor home to operate at a preset low power, collects the current noise decibel value of the range-extended motor home, wherein the current noise decibel value can be a noise decibel value in a carriage of the range-extended motor home and can also be a noise decibel value when the range extender operates. And according to a decibel difference value between the current noise decibel value and a preset decibel threshold value, wherein the preset decibel threshold value is a decibel value which does not influence the rest of the user, such as 40 decibels, 43 decibels, 45 decibels and the like. It can be understood that the preset decibel threshold corresponding to the current noise decibel value being the noise decibel value in the compartment of the range extender is different from the preset decibel threshold corresponding to the current noise decibel value being the noise decibel value when the range extender operates. The influence degree of the current noise on the rest state of the user can be determined through a decibel difference value between the current noise decibel value and a preset decibel threshold value, wherein the decibel difference value can be a difference value obtained by subtracting the preset decibel threshold value from the current noise decibel value, and can also be a difference value obtained by subtracting the current noise decibel value from the preset decibel threshold value. Taking the decibel difference as the difference between the current noise decibel value and the preset decibel threshold value as an example, the relation between the preset decibel difference and the target correction coefficient in the correction coefficient mapping table is negative correlation, that is, if the decibel difference is a positive value, the target correction coefficient is a coefficient smaller than 1, and if the decibel difference is larger, the target correction coefficient is smaller, such as 0.9, 0.8, 0.7 and the like; if the decibel difference is negative, the target correction coefficient is a coefficient greater than 1, and the smaller the decibel difference is, the larger the target correction coefficient is, for example, 1.1, 1.2, etc. Of course, it can be understood that the preset decibel difference value and the target correction coefficient corresponding to the target correction coefficient with the decibel difference value less than zero in the correction coefficient mapping table (that is, the current noise decibel value is lower than the preset decibel threshold) may be set to 1, that is, when the current noise decibel value is lower than the preset decibel threshold, the preset low power is not corrected, so as to provide lower noise and improve the comfort of the user during rest. Therefore, the preset decibel difference value and the correction coefficient mapping table can be inquired to obtain the corresponding target correction coefficient. And then, correcting preset low power according to the target correction coefficient to obtain new preset low power, and controlling a range extender of the range-extended motor home to operate at the new preset low power.
In the embodiment, the preset low power is updated by the current noise decibel value of the range-extended motor home and the decibel difference value of the preset decibel threshold value, so that the influence of factors such as the maintenance state, the running time and the structure of the range extender is avoided, the current noise decibel of the range-extended motor home is maintained within the preset decibel threshold value, and the influence on the rest of a user is avoided.
Further, step S300 is preceded by:
step S320, acquiring the current power consumption of the range-extending caravan and the interval duration between the current time and the ending time of a preset rest time period;
step S321, obtaining estimated power consumption according to the current power consumption and the interval duration;
step S322, obtaining the preset maximum low power threshold according to the preset minimum low power threshold and the estimated power consumption.
When the user is ready to rest or has already had a rest, the electrical appliances such as the air conditioner, the refrigerator and the like in the range-extended motor home are still used. And at the moment, the current power consumption of the range-extended motor home is obtained, so that the power consumption condition of the range-extended motor home is determined. In addition, considering that the power at different time points may fluctuate, the average value of the real-time power consumption is used as the current power consumption by collecting the real-time power consumption within a preset monitoring time (such as 5min and 10 min) so as to improve the accuracy of identifying the power consumption condition of the extended range motor home. And then determining the interval duration between the current time and the ending time of the preset rest period. And obtaining the estimated power consumption according to the product of the current power consumption and the interval duration. For example, if the current power consumption is 2 kw and the interval duration is 4 hours, the estimated power consumption is 8 kw-hr. And then obtaining the preset maximum low electric quantity threshold according to the preset minimum low electric quantity threshold and the estimated electric consumption. Taking the battery rated capacity of the range-extended caravan as 40 kilowatt hours, the preset minimum low-power threshold value as 15%, and the estimated power consumption as 8 kilowatt hours as an example, the power ratio corresponding to the estimated power consumption is 8/40=20%, and the preset maximum low-power threshold value is the sum of the preset minimum low-power threshold value and the estimated power consumption, wherein the sum is 15% +20% =35%. Certainly, in consideration of factors such as battery loss and accuracy of current power consumption, a certain redundant power may also be set, that is, the preset maximum low power threshold may be the sum of the preset minimum low power threshold, the estimated power consumption, and the preset redundant power. Taking the redundant power as 5% as an example, the preset maximum low power threshold is 35% +5% =40%.
In this embodiment, the estimated power consumption is determined by obtaining the current power consumption of the range-extended caravan and the interval duration between the current time and the ending time of the preset rest period. And obtaining the preset maximum low electric quantity threshold according to the preset minimum low electric quantity threshold and the estimated electric consumption. Therefore, the value of the preset maximum low power threshold value in the embodiment is more reasonable, and on the basis of ensuring that the user uses electricity in the preset rest period, the phenomenon that the starting frequency of the range extender is too high due to the fact that the preset maximum low power threshold value is too small, and the rest of the user and the service life of the range extender are influenced is avoided.
Further, after the step of obtaining the estimated power consumption according to the current power consumption and the interval duration in step S321, the method includes:
step S321A, obtaining a corresponding charging time according to the estimated power consumption and the preset low power;
step S321B, judging whether the charging time exceeds a preset time threshold;
step S321C, if the charging time exceeds a preset time threshold, obtaining a new estimated power consumption according to the preset time threshold and the preset low power.
In order to avoid overlong running time of the range extender, after estimated power consumption is obtained, the corresponding charging time length when the generated energy of the range extender reaches the estimated power consumption under the preset low power can be determined according to the estimated power consumption and the preset low power. Taking the preset low power of 10 kilowatts and the estimated power consumption of 18 kilowatt-hours as an example, the corresponding charging time is 18/10=1.8 hours, namely 108min, which is the quotient of the estimated power consumption and the preset low power. And then judging whether the charging time exceeds a preset time threshold (for example, 60min, 90min, 120min and the like). If the charging time exceeds the preset time threshold, the charging time is too long when the range extender of the range-extended motor home runs at the preset low power, and then new estimated power consumption can be obtained according to the preset time threshold and the preset low power. Taking the preset low power of 10 kilowatts and the preset time threshold of 90min as an example, the new estimated power consumption is 10 × 1.5=15 kilowatt-hours, which is the product of the preset time threshold and the preset low power. And determining a preset maximum low power threshold according to the preset minimum low power threshold and the new estimated power consumption. If the charging duration does not exceed the preset duration threshold, directly executing step S322. Whether this embodiment is through the time length of charging to exceed and predetermine the time length threshold value, and then confirm that new prediction power consumption avoids increasing the journey ware operating duration overlength, produces the influence to the operating condition of increasing the journey ware, noise when increasing the journey ware to the travelling comfort and the good operating condition of increasing the journey ware when guaranteeing the user rest.
Further, in another embodiment, after the step of obtaining the current time and the remaining power amount and determining whether the current time is in the preset rest period in step S100, the method further includes:
step S400, if the current moment is not in a preset rest period, judging whether the residual electric quantity is higher than a preset minimum high electric quantity threshold value;
and step S410, if the residual electric quantity is not higher than a preset minimum high electric quantity threshold value, controlling a range extender of the range-extended motor home to operate at a preset high power until the residual electric quantity reaches a preset maximum high electric quantity threshold value.
Specifically, if the current time is not in a preset rest period, it may be determined whether the remaining power is higher than a preset minimum power threshold (e.g., 50%, 60%, 70% of the rated capacity of the power battery). If the residual electric quantity is not higher than the preset minimum high electric quantity threshold value, controlling a range extender of the range-extended caravan to operate at a preset high power (such as 80%, 90% and the like of rated power) until the residual electric quantity reaches a preset maximum high electric quantity threshold value (such as 80%, 90% and the like of rated capacity of a power battery) so as to ensure that the power demand of the vehicle can be met in the driving process.
Referring to fig. 4, fig. 4 is a schematic flow chart of an alternative embodiment of the control method of the range-extended motor home of the present invention.
As shown in fig. 4, when a preset camping instruction of a user is received and a vehicle state of the range-extended motor home meets a preset camping condition, it is determined that the camping mode of the range-extended motor home is in effect. And further acquiring the current time, judging whether the current time is in a preset rest period (such as 20 at night. And when the residual electric quantity SOC is less than a preset minimum high electric quantity threshold value T1, enabling the range extender, and enabling the range extender to work according to a preset high power P1. And when the range extender generates electricity until the residual electricity SOC reaches a preset maximum high electricity threshold T2, stopping enabling the range extender, and keeping the residual electricity SOC in a higher electricity interval so as to meet the power requirement of the vehicle in running. And if the current time is in the preset rest time period, executing the control strategy according to the range extender of the rest time period. And enabling the range extender when the SOC is less than a preset minimum low battery threshold T3, and enabling the range extender to work according to a preset low power P2. When the range extender generates electricity until the residual electricity SOC reaches the preset maximum low electricity threshold T4, the range extender is stopped to enable, the residual electricity SOC is kept in a lower electricity interval, so that the phenomenon that the electricity generation time is too long or the starting frequency of the range extender is too high is avoided, and meanwhile, the working noise of the range extender is reduced as much as possible by working at the preset low power P2. Thereby improving the safety and comfort of the user during the rest period.
Further, referring to fig. 5, fig. 5 is a schematic structural diagram of a control system of a range-extended motor home according to an embodiment of the present invention.
As shown in fig. 5, the present embodiment provides a control system of a range-extended motor home, including:
the first judging module 10 is configured to acquire a current time and a remaining power of the extended range caravan, and judge whether the current time is in a preset rest period;
a second determining module 20, configured to determine whether the remaining power is higher than a preset minimum power threshold if the current time is in a preset rest period;
and the control module 30 is used for controlling the extended-range motor home to operate at a preset low power until the residual electric quantity reaches a preset maximum low electric quantity threshold when the residual electric quantity is not higher than the preset minimum low electric quantity threshold.
Further, the control system of the range-extended motor home further comprises: a power determination module 40 for
Controlling a range extender of the range-extending motor home to operate at a preset low power, and acquiring a current noise decibel value of the range-extending motor home;
inquiring a preset decibel difference value and a correction coefficient mapping table according to the decibel difference value between the current noise decibel value and a preset decibel threshold value to obtain a corresponding target correction coefficient;
and correcting the preset low power according to the target correction coefficient to obtain a new preset low power, and controlling a range extender of the range-extended motor home to operate at the new preset low power.
Further, the control system of the range-extended motor home further comprises: a threshold determination module 50 for
Acquiring the current power consumption of the range-extended motor home and the interval duration between the current time and the ending time of a preset rest period;
obtaining estimated power consumption according to the current power consumption and the interval duration;
and obtaining the preset maximum low electric quantity threshold according to the preset minimum low electric quantity threshold and the estimated electric consumption.
Further, the threshold determination module 50 is also used for
Obtaining corresponding charging time according to the estimated power consumption and the preset low power;
judging whether the charging time exceeds a preset time threshold or not;
and if the charging time exceeds a preset time threshold, obtaining new estimated power consumption according to the preset time threshold and the preset low power.
Further, the control system of the range-extended caravan further comprises: a third judging module 60 for
When a preset camping instruction of a user is received, judging whether the vehicle state of the range-extended motor home meets a preset camping condition or not;
if the vehicle state meets the preset camping condition, executing the following steps: the method comprises the steps of obtaining the current time and the residual electric quantity of the range-extended motor home, and judging whether the current time is in a preset rest time period.
Further, the third determining module 60 is also used for
Judging whether the current vehicle speed is lower than a preset minimum vehicle speed, whether the current gear is a parking gear and whether the opening of an accelerator pedal is lower than a preset minimum opening;
and if the current speed is lower than the preset minimum speed, the current gear is a parking gear, and the opening degree of an accelerator pedal is lower than the preset minimum opening degree, the vehicle state of the range-extended motor home is judged to meet the preset camping condition.
Further, the control module 30 is also used for
If the current moment is not in a preset rest period, judging whether the residual electric quantity is higher than a preset minimum high electric quantity threshold value;
and if the residual electric quantity is not higher than a preset minimum high electric quantity threshold value, controlling a range extender of the range-extended motor home to operate at a preset high power until the residual electric quantity reaches a preset maximum high electric quantity threshold value.
In addition, an embodiment of the present invention further provides a computer storage medium, where a computer program is stored in the computer storage medium, and when the computer program is executed by a processor, the operation in the control method for a range-extended caravan provided in the above embodiment is implemented, and specific steps are not described herein again.
It should be noted that, in this document, relational terms such as first and second, and the like are only used for distinguishing one entity/operation/object from another entity/operation/object, and do not necessarily require or imply any actual relationship or order between these entities/operations/objects; the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system 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 system. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or system that comprises the element.
For the apparatus embodiment, since it is substantially similar to the method embodiment, it is described relatively simply, and reference may be made to some descriptions of the method embodiment for relevant points. The above-described apparatus embodiments are merely illustrative, in that elements illustrated as separate components may or may not be physically separate. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of the invention. One of ordinary skill in the art can understand and implement without inventive effort.
The above-mentioned serial numbers of the embodiments of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, a vehicle, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The control method of the range-extended motor home is characterized by comprising the following steps of:
acquiring the current time and the residual electric quantity of the extended range motor home, and judging whether the current time is in a preset rest period;
if the current moment is in a preset rest period, judging whether the residual electric quantity is higher than a preset minimum electric quantity threshold value;
and if the residual electric quantity is not higher than a preset minimum low electric quantity threshold value, controlling a range extender of the range-extended motor home to operate at a preset low power until the residual electric quantity reaches a preset maximum low electric quantity threshold value.
2. The method for controlling the range-extended motor home according to claim 1, wherein the step of controlling the range extender of the range-extended motor home to operate at a preset low power comprises:
controlling a range extender of the range-extended motor home to operate at a preset low power, and acquiring a current noise decibel value of the range-extended motor home;
inquiring a preset decibel difference value and a correction coefficient mapping table according to the decibel difference value between the current noise decibel value and a preset decibel threshold value to obtain a corresponding target correction coefficient;
and correcting preset low power according to the target correction coefficient to obtain new preset low power, and controlling a range extender of the range-extended motor home to operate at the new preset low power.
3. The method for controlling the range-extended recreational vehicle according to claim 2, wherein before the step of controlling the range extender of the range-extended recreational vehicle to operate at a preset low power until the remaining power reaches a preset maximum low power threshold when the remaining power is not higher than a preset minimum power threshold, the method further comprises:
acquiring the current power consumption of the range-extended motor home and the interval duration between the current time and the ending time of a preset rest period;
obtaining estimated power consumption according to the current power consumption and the interval duration;
and obtaining the preset maximum low electric quantity threshold according to the preset minimum low electric quantity threshold and the estimated electric consumption.
4. The method for controlling a range-extended caravan according to claim 3, wherein the step of obtaining the estimated power consumption according to the current power consumption and the interval duration, after the step of obtaining the estimated power consumption, comprises:
obtaining corresponding charging time according to the estimated power consumption and the preset low power;
judging whether the charging time exceeds a preset time threshold or not;
and if the charging time exceeds a preset time threshold, obtaining new estimated power consumption according to the preset time threshold and the preset low power.
5. The method for controlling the extended range motor home according to claim 1, wherein the step of obtaining the current time and the remaining capacity of the extended range motor home and determining whether the current time is in a preset rest period includes:
when a preset camping instruction of a user is received, judging whether the vehicle state of the range-extended motor home meets a preset camping condition or not;
if the vehicle state meets the preset camping condition, executing the following steps: and acquiring the current time and the residual electric quantity of the extended range motor home, and judging whether the current time is in a preset rest time period.
6. The method of controlling the range-extended motor home according to claim 5, wherein the vehicle state includes a current vehicle speed, a current gear, and an accelerator pedal opening, and the step of determining whether the vehicle state of the range-extended motor home satisfies a preset camping condition includes:
judging whether the current vehicle speed is lower than a preset minimum vehicle speed, whether the current gear is a parking gear and whether the opening degree of an accelerator pedal is lower than a preset minimum opening degree;
and if the current speed is lower than the preset minimum speed, the current gear is a parking gear, and the opening of the accelerator pedal is lower than the preset minimum opening, judging that the vehicle state of the range-extended motor home meets the preset camping condition.
7. The method for controlling the range-extended motor home according to any one of claims 1 to 6, wherein after the step of obtaining the current time and the remaining power and determining whether the current time is within a preset rest period, the method further comprises:
if the current moment is not in a preset rest period, judging whether the residual electric quantity is higher than a preset minimum high electric quantity threshold value;
and if the residual electric quantity is not higher than a preset minimum high electric quantity threshold value, controlling a range extender of the range-extended motor home to operate at a preset high power until the residual electric quantity reaches a preset maximum high electric quantity threshold value.
8. A control system of a range-extended caravan, characterized by comprising:
the first judgment module is used for acquiring the current time and the residual electric quantity of the extended range motor home and judging whether the current time is in a preset rest period;
the second judgment module is used for judging whether the residual electric quantity is higher than a preset minimum electric quantity threshold value or not if the current moment is in a preset rest time period;
and the control module is used for controlling the extended-range motor home to operate at preset low power until the residual electric quantity reaches a preset maximum low electric quantity threshold when the residual electric quantity is not higher than the preset minimum low electric quantity threshold.
9. A control apparatus of a range-extended motor home, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the method according to any one of claims 1 to 7.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a control program of a range-extended motor home, which when executed by a processor implements the steps of the method according to any one of claims 1 to 7.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2024087346A1 (en) * | 2022-10-26 | 2024-05-02 | 合众新能源汽车股份有限公司 | Control method and apparatus for extended-range electric vehicle, and vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2024087346A1 (en) * | 2022-10-26 | 2024-05-02 | 合众新能源汽车股份有限公司 | Control method and apparatus for extended-range electric vehicle, and vehicle |
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