CN114103928B - Parallel switching control method and device, electronic equipment and storage medium - Google Patents
Parallel switching control method and device, electronic equipment and storage medium Download PDFInfo
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- CN114103928B CN114103928B CN202111342865.2A CN202111342865A CN114103928B CN 114103928 B CN114103928 B CN 114103928B CN 202111342865 A CN202111342865 A CN 202111342865A CN 114103928 B CN114103928 B CN 114103928B
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- 238000005265 energy consumption Methods 0.000 abstract description 25
- 230000001276 controlling effect Effects 0.000 description 35
- 238000004590 computer program Methods 0.000 description 13
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- 238000004364 calculation method Methods 0.000 description 3
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- 239000000446 fuel Substances 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 239000002803 fossil fuel Substances 0.000 description 2
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- 238000000354 decomposition reaction Methods 0.000 description 1
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- 239000013307 optical fiber Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/40—Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
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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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
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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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
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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
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/10—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to vehicle motion
- B60W40/105—Speed
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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
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
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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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/02—Clutches
- B60W2710/021—Clutch engagement state
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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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0644—Engine speed
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
The application discloses a parallel switching control method, a device, electronic equipment and a storage medium, wherein the parallel switching control method comprises the following steps: detecting the current speed of the vehicle in real time; acquiring a preprocessing vehicle speed, and comparing the current vehicle speed with the preprocessing vehicle speed; if the current vehicle speed is equal to the pretreatment vehicle speed, controlling the engine to adjust to a preset target rotating speed; and when the current vehicle speed is detected to reach the preset parallel switching vehicle speed, controlling the clutch to be closed. The application solves the technical problems of poor energy consumption performance and poor driving feeling of the parallel switching control of the low-cost clutch in the prior art, and improves the energy consumption performance and the driving performance of the vehicle.
Description
Technical Field
The present application relates to the field of vehicle control technologies, and in particular, to a parallel switching control method, a device, an electronic apparatus, and a storage medium.
Background
The hybrid electric vehicle is a compromise between the traditional vehicle and the full electric vehicle, and utilizes the engine of the traditional vehicle and the motor of the full electric vehicle to carry out hybrid driving, so that the demand on fossil fuel is reduced, the fuel economy is improved, the effects of energy conservation, emission reduction and greenhouse effect relief are achieved, the hydraulic control type clutch is carried, the clutch demand type and the cost are different according to the control demand, the cost of the supporting slip film type clutch is high, the control is complex, the service life of the clutch is reduced due to frequent slip film, the cost of the clutch is well controlled due to the adoption of a semi-slip film or non-slip film clutch with lower cost, however, the mode can frequently enter and exit a parallel driving mode due to actual conditions such as speed change or working condition mutation, a large amount of invalid energy consumption control appears, and the driving feeling is poor due to the fact that the vehicle power performance is not in line with driving operation.
Disclosure of Invention
The application mainly aims to provide a parallel switching control method, a device, electronic equipment and a storage medium, and aims to solve the technical problems of poor energy consumption performance and poor driving feeling of parallel switching control by adopting a low-cost clutch in the prior art.
In order to achieve the above object, the present application provides a parallel switching control method, including:
Detecting the current speed of the vehicle in real time;
Acquiring a preprocessing vehicle speed, and comparing the current vehicle speed with the preprocessing vehicle speed;
if the current vehicle speed is equal to the pretreatment vehicle speed, controlling the engine to adjust to a preset target rotating speed;
and when the current vehicle speed is detected to reach the preset parallel switching vehicle speed, controlling the clutch to be closed.
Preferably, the step of acquiring the preprocessing vehicle speed includes:
detecting the current acceleration in real time;
And determining the pretreatment vehicle speed according to the preset parallel switching vehicle speed, the current acceleration and the preset rotating speed adjusting time.
Preferably, the step of controlling the engine to adjust to a preset target rotation speed if the current vehicle speed is equal to the pre-processing vehicle speed comprises:
if the current speed is equal to the preprocessing speed, acquiring the charge state of the battery;
And when the charge state is higher than a preset electric quantity value, controlling the engine to adjust to a preset target rotating speed.
Preferably, the step of controlling the engine to adjust to a preset target rotation speed if the current vehicle speed is equal to the pre-processing vehicle speed comprises:
If the current vehicle speed is equal to the preprocessing vehicle speed, acquiring the opening of an accelerator pedal;
and when the opening of the accelerator pedal is smaller than a preset opening value, controlling the engine to adjust to a preset target rotating speed.
Preferably, the step of controlling the engine to adjust to a preset target rotation speed if the current vehicle speed is equal to the pre-processing vehicle speed comprises:
If the current speed is equal to the preprocessing speed, acquiring road condition information;
and if the road condition information meets the preset parallel condition, controlling the engine to adjust to a preset target rotating speed.
Preferably, after the step of comparing the current vehicle speed and the preprocessed vehicle speed, the method further includes:
If the current vehicle speed is not equal to the preprocessing vehicle speed, executing the steps of: and obtaining a pretreatment vehicle speed, and comparing the current vehicle speed with the pretreatment vehicle speed.
Preferably, after the step of controlling the clutch to be closed when the current vehicle speed is detected to reach the preset parallel switching vehicle speed, the method further includes:
And when the time that the current vehicle speed is detected to be continuously lower than the preset parallel switching vehicle speed exceeds the preset error time, controlling the clutch to be separated.
The present application also provides a parallel switching control device applied to a moving picture decomposition apparatus, the parallel switching control device comprising:
the vehicle speed detection module is used for detecting the current vehicle speed in real time;
The vehicle speed comparison module is used for acquiring the preprocessing vehicle speed and comparing the current vehicle speed with the preprocessing vehicle speed;
The rotating speed adjusting module is used for controlling the engine to adjust to a preset target rotating speed if the current vehicle speed is equal to the pretreatment vehicle speed;
and the clutch closing module is used for controlling the clutch to be closed when the current vehicle speed is detected to reach the preset parallel switching vehicle speed.
The application also provides an electronic device, which is entity equipment, comprising: the parallel switching control method comprises a memory, a processor and a program of the parallel switching control method, wherein the program of the parallel switching control method is stored in the memory and can be run on the processor, and the steps of the parallel switching control method can be realized when the program of the parallel switching control method is executed by the processor.
The present application also provides a storage medium, which is a computer readable storage medium, where a program for implementing a parallel switching control method is stored on the computer readable storage medium, where the program for implementing the parallel switching control method implements the steps of the parallel switching control method as described above when executed by a processor.
The application also provides a computer program product comprising a computer program which, when executed by a processor, implements the steps of a parallel handover control method as described above.
The application provides a parallel switching control method, a device, electronic equipment and a storage medium, wherein the current speed is detected in real time, the preprocessed speed is obtained, the current speed is compared with the preprocessed speed, if the current speed is equal to the preprocessed speed, an engine is controlled to be adjusted to a preset target rotating speed, the determination of an engine rotating speed adjusting time point is realized, further, the judging time of parallel switching is advanced and the engine rotating speed adjustment is finished in advance, when the current speed is detected to reach the preset parallel switching speed, the clutch is controlled to be closed, the clutch is quickly and smoothly closed when the preset parallel switching speed suitable for parallel switching is reached, at the moment, the engine is synchronously finished to adjust the rotating speed, the clutch is quickly closed when the speed and the engine rotating speed reach an optimal contract point, the parallel switching time is greatly shortened, the vehicle power output can respond to driving operation more quickly, the invalid energy consumption control is greatly reduced, the technical problems of poor energy consumption and poor driving feeling of parallel switching control adopting a low-cost clutch are overcome, and the energy consumption and the driving performance of the vehicle are improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
In order to more clearly illustrate the embodiments of the application or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a flow chart of an embodiment of a parallel switch control method according to the present application;
Fig. 2 is a schematic device structure diagram of a hardware operating environment related to a parallel switching control method in an embodiment of the present application.
The achievement of the objects, functional features and advantages of the present application will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, the following description of the embodiments accompanied with the accompanying drawings will be given in detail. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The hybrid electric vehicle is a compromise between the traditional vehicle and the full electric vehicle, and utilizes the engine of the traditional vehicle and the motor of the full electric vehicle to carry out hybrid driving, thereby reducing the demand on fossil fuel and improving the fuel economy, so as to achieve the effects of energy conservation, emission reduction and reducing the greenhouse effect, when the vehicle speed is in a medium low speed, the clutch is separated, the engine is connected with the motor in series, the motor is driven, the engine does not work or works in an economic power generation range, the generator can be used for charging a battery, when the vehicle speed is in a medium high speed, the clutch is closed, the engine is connected with the motor in parallel to provide driving force for the vehicle independently or jointly, the engine can directly drive the vehicle, and the load of the engine can be regulated by driving the motor, so that the engine still works in a low oil consumption area, the hybrid electric vehicle is provided with the hydraulic control clutch, according to the control requirement, the clutch requirement type and the cost are different, the clutch supporting the sliding film type is high in cost and relatively complex in control, the service life of the clutch is reduced due to frequent sliding film, a semi-sliding film clutch or a non-sliding film clutch with relatively low cost is adopted, a switch type control strategy is adopted, after judging that the parallel connection condition is met, the front end engine of the clutch is subjected to torque reduction and speed regulation, and then the clutch is closed, in this way, although the cost and the control have certain advantages, the parallel connection switching time to the closed clutch after judging that the parallel connection condition is met is the rotating speed regulating time plus the time of the closed clutch, the whole parallel connection switching time is relatively long, when the switching to a parallel connection driving mode possibly occurs, the switching to the parallel connection driving mode is not required due to the change of the external condition, the parallel connection request is stopped, and the parallel connection is exited, this is equivalent to the case where the reactive energy consumption control is performed, and the vehicle power performance does not follow the driving operation, resulting in poor driving feeling.
An embodiment of the present application provides a parallel switching control method, in a first embodiment of the parallel switching control method of the present application, referring to fig. 1, the parallel switching control method includes:
Step S10, detecting the current vehicle speed in real time;
in this embodiment, specifically, the current vehicle speed is detected in real time by a vehicle speed sensor, where the current vehicle speed is the instantaneous speed at which the vehicle travels, and the current vehicle speeds at different times are different.
Step S20, obtaining a preprocessing vehicle speed, and comparing the current vehicle speed with the preprocessing vehicle speed;
In this embodiment, it should be noted that, along with the increase of the vehicle speed, when the vehicle speed increases to the preprocessing vehicle speed, the vehicle performs the preprocessing of parallel switching, and further, when the vehicle speed increases to the preset parallel switching vehicle speed, the clutch is quickly closed, and the vehicle enters the parallel driving mode, where the preset parallel switching vehicle speed is a vehicle speed that is preset by comprehensively considering factors such as energy consumption and economy of each vehicle and switches the driving mode of the vehicle to the parallel driving mode, the preprocessing vehicle speed is a preprocessed vehicle speed that is a time point before the vehicle speed reaches the parallel switching vehicle speed, and the preprocessing of parallel switching includes judging a parallel switching condition, adjusting the rotation speed of the engine, and/or adjusting the torque of the engine, where in one embodiment, the preprocessing vehicle speed may be through setting an error range, so as to maximally ensure that when the current vehicle speed reaches the parallel switching vehicle speed, the engine has been adjusted to the preset target rotation speed.
Specifically, a preset pretreatment vehicle speed is obtained or a pretreatment vehicle speed determined according to preset parallel switching vehicle speed, acceleration, pretreatment time, driving intention and other conditions is calculated in real time, the current vehicle speed is compared with the numerical value of the pretreatment vehicle speed, the pretreatment vehicle speed is calculated and determined according to a calculation formula of the speed and the acceleration, the calculation formula is V 1＝V2 -at, V 1 is the pretreatment vehicle speed, V 2 is the preset parallel switching vehicle speed, a is the current acceleration, t is the preset rotating speed adjusting time, and when V 2 and t are known, the corresponding pretreatment vehicle speed can be calculated according to the obtained current acceleration.
Preferably, the step of acquiring the preprocessing vehicle speed includes:
a10, detecting the current acceleration in real time;
in this embodiment, specifically, the current acceleration is detected in real time by an acceleration sensor, where the current acceleration is the instantaneous acceleration of the vehicle running, and the current accelerations at different times are different.
And step A20, determining a pretreatment vehicle speed according to the preset parallel switching vehicle speed, the current acceleration and the preset rotating speed adjusting time.
In this embodiment, specifically, according to the calculation formula V 1＝V2 -at of the preprocessing vehicle speed, where V 1 is the preprocessing vehicle speed, V 2 is the preset parallel switching vehicle speed, a is the current acceleration, and t is the preset rotation speed adjustment time, when V 2 and t are known, the corresponding preprocessing vehicle speed can be calculated according to the obtained current acceleration, that is, the target rotation speed of the engine when the switching to the parallel driving mode is determined according to the preset parallel switching vehicle speed, and then the rotation speed adjustment time of the engine when the switching to the target rotation speed is determined, and is preset, and then the change value of the speed passing through the preset rotation speed adjustment time can be calculated according to the detected current acceleration, and then the preprocessing vehicle speed can be determined according to the difference between the preset parallel switching vehicle speed and the speed change value.
In one embodiment, the acceleration intention of the driver may be predicted according to the accelerator opening and/or the road condition information, etc., so as to further predict the average acceleration in the rotational speed adjustment time range, and further calculate the preprocessing vehicle speed according to the average acceleration.
In the embodiment, the relation between the current acceleration and the preprocessing vehicle speed is determined through the relation between the speed and the acceleration, so that the preprocessing vehicle speed at each moment is determined according to the real-time detection of the current acceleration, the accuracy of preprocessing vehicle speed prediction is improved, the rotating speed of an engine during the subsequent clutch closing process is optimized, the fluency of the parallel switching process of the low-cost clutch is improved, and the driving experience is improved.
Preferably, after the step of comparing the current vehicle speed and the preprocessed vehicle speed, the method further includes:
If the current vehicle speed is not equal to the preprocessing vehicle speed, executing the steps of: and obtaining a pretreatment vehicle speed, and comparing the current vehicle speed with the pretreatment vehicle speed.
In this embodiment, it should be noted that, since the preprocessed vehicle speeds obtained at different times may be the same or different, the current vehicle speed detected at different times may be the same or different, and thus, the preprocessed vehicle speed at the current time may be obtained for comparison each time the current vehicle speed and the preprocessed vehicle speed are compared, and further, when the comparison is performed again, the preprocessed vehicle speed at the same time as the current vehicle speed may also need to be obtained again for comparison.
Specifically, if the current vehicle speed is not equal to the pre-processing vehicle speed, the necessary condition for adjusting the rotation speed is not satisfied, and the rotation speed of the engine is not required to be adjusted, the steps are executed: and obtaining the preprocessing vehicle speed, and comparing the current vehicle speed with the preprocessing vehicle speed to continuously monitor whether the vehicle speed at the next moment meets the necessary condition for adjusting the rotating speed.
In the embodiment, the precondition for adjusting the rotation speed of the engine is monitored by circularly acquiring the pretreatment vehicle speed and comparing the current vehicle speed with the pretreatment vehicle speed.
Step S30, if the current vehicle speed is equal to the pretreatment vehicle speed, controlling the engine to adjust to a preset target rotating speed;
In this embodiment, specifically, if the current vehicle speed is equal to the pre-processing vehicle speed, the necessary condition for adjusting the rotation speed is met, and the generator is controlled to pull up the rotation speed of the engine to a preset target rotation speed, wherein the preset target rotation speed is a rotation speed matched with the rotation speed of the clutch transmission system end when the vehicle is switched to the parallel driving mode, so that it is known that the preset target rotation speed is directly related to the parallel switching vehicle speed when the vehicle is switched to the parallel driving mode.
Preferably, the step of controlling the engine to adjust to a preset target rotation speed if the current vehicle speed is equal to the pre-processing vehicle speed comprises:
Step B10, if the current vehicle speed is equal to the pretreatment vehicle speed, acquiring the charge state of the battery;
and step B20, when the state of charge is higher than a preset electric quantity value, controlling the engine to adjust to a preset target rotating speed.
In this embodiment, it should be noted that, the state of charge (SOC) of the battery is a ratio of a remaining capacity of the battery after the battery is used for a period of time or is left unused for a long period of time to a capacity of a full charge state of the battery, and is generally represented by a percentage, where the value range is 0-1, when soc=0, the battery is completely discharged, when soc=1, the preset electric quantity value is an electric quantity value that allows switching to a parallel driving mode, when SOC is higher than the preset electric quantity value, the vehicle is driven by the engine and the motor together in the parallel driving mode, when SOC is lower than the preset electric quantity value, the vehicle does not enter the parallel driving mode, and the engine drives the generator to charge the battery, so as to improve fuel economy.
Specifically, if the current vehicle speed is equal to the pre-processing vehicle speed, acquiring the SOC of the battery, comparing the SOC of the battery with a preset electric quantity value which allows switching to a parallel driving mode, when the SOC is higher than the preset electric quantity value, controlling the engine to adjust to a preset target rotating speed, and when the SOC is smaller than or equal to the preset electric quantity value, not changing the current rotating speed of the engine, keeping the original driving mode or controlling the engine to adjust to drive the generator to charge the battery in an economic power generation range.
In this embodiment, the determination condition for switching to the parallel driving mode is further defined by the SOC of the battery, so that the timing for switching the driving mode is optimized, further, the energy consumption performance of the vehicle is improved, the parallel switching time is shortened by advancing the determination time to the time before the rotation speed is adjusted, the error value for determining the preprocessed vehicle speed is reduced, and the drivability of the vehicle is improved.
Preferably, the step of controlling the engine to adjust to a preset target rotation speed if the current vehicle speed is equal to the pre-processing vehicle speed comprises:
step C10, if the current vehicle speed is equal to the pretreatment vehicle speed, acquiring the opening of an accelerator pedal;
And step C20, controlling the engine to adjust to a preset target rotating speed when the opening of the accelerator pedal is smaller than a preset opening value.
In this embodiment, it should be noted that, the accelerator opening is an opening degree of an accelerator pedal, and is used to control an opening degree of a throttle valve of an engine, so as to control a power output of the engine, and the preset opening value is an accelerator pedal opening value that allows switching to a parallel driving mode, when the accelerator pedal opening value is large, an output power of the engine is large, at this time, the vehicle is in a series driving mode, when the driving power is smaller than an engine working power, a battery is charged, an electric quantity is increased, when the driving power is greater than the engine working power, the battery is discharged, the electric quantity is gradually decreased, and an energy utilization rate can be improved, so that an energy consumption performance of the vehicle is improved, and when the accelerator pedal opening value is small, the vehicle is in the parallel driving mode and is driven by the motor together.
Specifically, if the current vehicle speed is equal to the pre-processing vehicle speed, an accelerator pedal opening is obtained, the accelerator pedal opening is compared with a preset opening value which allows switching to a parallel driving mode, when the accelerator pedal opening is smaller than the preset opening value, the engine is controlled to be adjusted to a preset target rotating speed, when the accelerator pedal opening is larger than or equal to the preset opening value, the current rotating speed of the engine is not changed, the original driving mode is maintained or the engine is controlled to be adjusted to the series mode, and when the driving power is smaller than the working power of the engine, the part of the engine output power exceeding the driving power is used for charging a battery.
In this embodiment, the determination condition for switching to the parallel driving mode is further defined by the accelerator opening, so that the timing for switching the driving mode is optimized, further, the energy consumption performance of the vehicle is improved, the parallel switching time is shortened by advancing the determination time to the time before the rotation speed is adjusted, the error value for determining the preprocessed vehicle speed is reduced, and the drivability of the vehicle is improved.
Preferably, the step of controlling the engine to adjust to a preset target rotation speed if the current vehicle speed is equal to the pre-processing vehicle speed comprises:
Step D10, if the current vehicle speed is equal to the preprocessing vehicle speed, acquiring road condition information;
and step D20, if the road condition information meets the preset parallel condition, controlling the engine to adjust to the preset target rotating speed.
In this embodiment, it should be noted that, the road condition information is current driving road information determined by combining with a sensor and/or a map to perform gradient recognition, resistance recognition, and/or road recognition, including road gradient, road congestion, road flatness, etc., where the preset parallel condition is a road condition information condition that allows switching to a parallel driving mode, and may be preset according to actual energy consumption conditions and power conditions of different vehicles, for example, under a road flatness condition, the vehicle may keep a higher vehicle speed for a longer time, and the conditions that the vehicle speed suddenly rises and falls and happens to be higher than the preconditioned vehicle speed are fewer, switching to the parallel driving mode may better control energy consumption and provide driving force, so that the road flatness condition is preset to allow switching to the parallel driving mode; under the condition of road congestion, the probability that the vehicle reaches the pretreatment vehicle speed is high as an accidental situation, at the moment, even if the vehicle speed reaches the pretreatment vehicle speed, the maximum probability cannot be maintained above the preset parallel switching vehicle speed, if the engine speed is adjusted or the clutch is closed to perform parallel switching control, frequent switching-in and switching-out of the parallel driving mode can be caused, and unnecessary energy consumption loss is caused, so that the condition of road congestion is preset as the condition that switching to the parallel driving mode is not allowed.
Specifically, if the current vehicle speed is equal to the preprocessing vehicle speed, acquiring road condition information, determining a driving mode corresponding to the road condition information according to the road condition information, if the driving mode corresponding to the road condition information is a parallel driving mode, controlling an engine to adjust to a preset target rotating speed if the road condition information meets a preset parallel condition, and if the driving mode corresponding to the road condition information is not the parallel driving mode, not meeting the preset parallel condition, not changing the current rotating speed of the engine, and keeping the original driving mode or carrying out corresponding adjustment according to the driving mode corresponding to the road condition information.
In this embodiment, the condition for switching to the parallel driving mode is further limited by the road condition information, so that the switching time of the driving mode is optimized, the energy consumption performance of the vehicle is further improved, the parallel switching time is shortened by advancing the judging time to the time before the rotation speed is adjusted, the error value of the judgment of the preprocessed vehicle speed is reduced, and the drivability of the vehicle is improved.
And S40, when the current vehicle speed is detected to reach the preset parallel switching vehicle speed, controlling the clutch to be closed.
In this embodiment, specifically, when the vehicle speed is equal to the pre-processing vehicle speed, the engine starts to adjust the rotation speed to a preset target rotation speed, and at the same time, the vehicle speed climbs at a certain acceleration, when the current vehicle speed is detected to climb to the preset parallel switching vehicle speed, the engine is adjusted to the target rotation speed, at this time, the clutch is controlled to be closed, so that smooth closing of the clutch can be realized, and the vehicle is smoothly switched to the parallel driving mode.
Preferably, after the step of controlling the clutch to be closed when the current vehicle speed is detected to reach the preset parallel switching vehicle speed, the method further includes:
And when the time that the current vehicle speed is detected to be continuously lower than the preset parallel switching vehicle speed exceeds the preset error time, controlling the clutch to be separated.
In this embodiment, it should be noted that the preset error time is an empirical time obtained according to a test, a big data analysis, or a driver driving speed fluctuation analysis, so as to avoid frequent start and stop of the engine and frequent switching of the vehicle serial-parallel driving mode caused by a stepping habit, road condition jolting, or emergency.
Specifically, when the current vehicle speed is detected to be lower than the preset parallel switching vehicle speed, starting timing, if the current vehicle speed is detected to be higher than the preset parallel switching vehicle speed within the preset error time, stopping timing when the change of the vehicle speed is caused by an emergency, continuously keeping a parallel driving mode of the vehicle, and if the timing exceeds the preset error time, indicating that the vehicle is in a lower-speed driving state lower than the parallel switching vehicle speed, controlling a clutch to be separated, exiting the parallel mode, and controlling an engine to stop working or work in an economic power generation range.
In the embodiment, through the preset error time, the erroneous judgment on the time point of exiting the parallel driving mode caused by the fact that the vehicle is not in deceleration with the aim of exiting the parallel driving mode due to the emergency is effectively avoided, the ineffective energy consumption caused by frequent start and stop of the engine and frequent switching of the vehicle serial-parallel driving mode is effectively reduced, and the energy consumption performance of the vehicle is improved.
According to the actual conditions of different vehicles, the preset parallel switching speed suitable for switching to a parallel driving mode can be determined, and the optimal rotating speed of the engine corresponding to the preset parallel switching speed, namely the preset target rotating speed, is obtained.
In this embodiment, the current vehicle speed is detected in real time, the preprocessed vehicle speed is obtained, the current vehicle speed is compared with the preprocessed vehicle speed, if the current vehicle speed is equal to the preprocessed vehicle speed, the engine is controlled to be adjusted to a preset target rotation speed, the determination of an engine rotation speed adjustment time point is realized, further, the determination time of parallel switching is advanced, and the engine rotation speed adjustment is finished in advance, when the current vehicle speed is detected to reach the preset parallel switching vehicle speed, the clutch is controlled to be closed, so that the clutch is closed quickly and smoothly when the preset parallel switching vehicle speed suitable for parallel switching is reached, the clutch is closed quickly when the vehicle speed and the engine rotation speed reach an optimal fit point, the parallel switching time is shortened greatly, the vehicle power output can respond to driving operation more quickly, the invalid energy consumption control is reduced greatly, the technical problems of poor energy consumption performance and driving feeling of parallel switching control by adopting a low-cost clutch are overcome, and the energy consumption performance and driving performance of the vehicle are improved.
The embodiment of the application also provides a parallel switching control device, which is applied to the parallel switching control equipment and comprises:
the vehicle speed detection module is used for detecting the current vehicle speed in real time;
The vehicle speed comparison module is used for acquiring the preprocessing vehicle speed and comparing the current vehicle speed with the preprocessing vehicle speed;
The rotating speed adjusting module is used for controlling the engine to adjust to a preset target rotating speed if the current vehicle speed is equal to the pretreatment vehicle speed;
and the clutch closing module is used for controlling the clutch to be closed when the current vehicle speed is detected to reach the preset parallel switching vehicle speed.
Optionally, the vehicle speed comparison module is further configured to:
detecting the current acceleration in real time;
And determining the pretreatment vehicle speed according to the preset parallel switching vehicle speed, the current acceleration and the preset rotating speed adjusting time.
Optionally, the rotation speed adjustment module is further configured to:
if the current speed is equal to the preprocessing speed, acquiring the charge state of the battery;
And when the charge state is higher than a preset electric quantity value, controlling the engine to adjust to a preset target rotating speed.
Optionally, the rotation speed adjustment module is further configured to:
If the current vehicle speed is equal to the preprocessing vehicle speed, acquiring the opening of an accelerator pedal;
and when the opening of the accelerator pedal is smaller than a preset opening value, controlling the engine to adjust to a preset target rotating speed.
Optionally, the rotation speed adjustment module is further configured to:
If the current speed is equal to the preprocessing speed, acquiring road condition information;
and if the road condition information meets the preset parallel condition, controlling the engine to adjust to a preset target rotating speed.
Optionally, the vehicle speed comparison module is further configured to:
If the current vehicle speed is not equal to the preprocessing vehicle speed, executing the steps of: and obtaining a pretreatment vehicle speed, and comparing the current vehicle speed with the pretreatment vehicle speed.
Optionally, the clutch closing module is further configured to:
And when the time that the current vehicle speed is detected to be continuously lower than the preset parallel switching vehicle speed exceeds the preset error time, controlling the clutch to be separated.
The parallel switching control device provided by the invention adopts the parallel switching control method, and solves the technical problems of poor energy consumption performance and poor driving feeling of the parallel switching control by adopting a low-cost clutch in the prior art. Compared with the prior art, the parallel switching control device provided by the embodiment of the invention has the same beneficial effects as the parallel switching control method provided by the embodiment, and other technical features in the parallel switching control device are the same as those disclosed in the method of the previous embodiment, and are not described in detail herein.
The embodiment of the invention provides electronic equipment, which comprises: at least one processor; and a memory communicatively coupled to the at least one processor; the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the parallel handover control method of the above embodiment.
Referring now to fig. 2, a schematic diagram of an electronic device suitable for use in implementing embodiments of the present disclosure is shown. The electronic devices in the embodiments of the present disclosure may include, but are not limited to, mobile terminals such as mobile phones, notebook computers, digital broadcast receivers, PDAs (personal digital assistants), PADs (tablet computers), PMPs (portable multimedia players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and the like, and stationary terminals such as digital TVs, desktop computers, and the like. The electronic device shown in fig. 2 is merely an example and should not be construed to limit the functionality and scope of use of the disclosed embodiments.
As shown in fig. 2, the electronic device may include a processing means (e.g., a central processing unit, a graphic processor, etc.) that may perform various appropriate actions and processes according to a program stored in a Read Only Memory (ROM) or a program loaded from a storage means into a Random Access Memory (RAM). In the RAM, various programs and data required for the operation of the electronic device are also stored. The processing device, ROM and RAM are connected to each other via a bus. An input/output (I/O) interface is also connected to the bus.
In general, the following systems may be connected to the I/O interface: input devices including, for example, touch screens, touch pads, keyboards, mice, image sensors, microphones, accelerometers, gyroscopes, etc.; output devices including, for example, liquid Crystal Displays (LCDs), speakers, vibrators, etc.; storage devices including, for example, magnetic tape, hard disk, etc.; a communication device. The communication means may allow the electronic device to communicate with other devices wirelessly or by wire to exchange data. While electronic devices having various systems are shown in the figures, it should be understood that not all of the illustrated systems are required to be implemented or provided. More or fewer systems may alternatively be implemented or provided.
In particular, according to embodiments of the present disclosure, the processes described above with reference to flowcharts may be implemented as computer software programs. For example, embodiments of the present disclosure include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising program code for performing the method shown in the flowcharts. In such an embodiment, the computer program may be downloaded and installed from a network via a communication device, or installed from a storage device, or installed from ROM. The above-described functions defined in the methods of the embodiments of the present disclosure are performed when the computer program is executed by a processing device.
The electronic equipment provided by the invention adopts the parallel switching control method in the embodiment, and solves the technical problems of poor energy consumption performance and poor driving feeling of the parallel switching control of the low-cost clutch in the prior art. Compared with the prior art, the electronic device provided by the embodiment of the invention has the same beneficial effects as the parallel switching control method provided by the embodiment, and other technical features in the electronic device are the same as the features disclosed by the method of the previous embodiment, and are not described in detail herein.
It should be understood that portions of the present disclosure may be implemented in hardware, software, firmware, or a combination thereof. In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
The present embodiment provides a computer-readable storage medium having computer-readable program instructions stored thereon for executing the parallel handover control method in the above-described embodiment.
The computer readable storage medium according to the embodiments of the present invention may be, for example, a usb disk, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, or device, or a combination of any of the foregoing. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In this embodiment, a computer-readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, or device. Program code embodied on a computer readable storage medium may be transmitted using any appropriate medium, including but not limited to: electrical wires, fiber optic cables, RF (radio frequency), and the like, or any suitable combination of the foregoing.
The above-described computer-readable storage medium may be contained in an electronic device; or may exist alone without being assembled into an electronic device.
The computer-readable storage medium carries one or more programs that, when executed by an electronic device, cause the electronic device to: detecting the current speed of the vehicle in real time; acquiring a preprocessing vehicle speed, and comparing the current vehicle speed with the preprocessing vehicle speed; if the current vehicle speed is equal to the pretreatment vehicle speed, controlling the engine to adjust to a preset target rotating speed; and when the current vehicle speed is detected to reach the preset parallel switching vehicle speed, controlling the clutch to be closed.
Computer program code for carrying out operations of the present disclosure may be written in one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider).
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The modules described in the embodiments of the present disclosure may be implemented in software or hardware. Wherein the name of the module does not constitute a limitation of the unit itself in some cases.
The computer readable storage medium provided by the invention stores the computer readable program instructions for executing the parallel switching control method, and solves the technical problems of poor energy consumption performance and poor driving feeling of the parallel switching control by adopting a low-cost clutch in the prior art. Compared with the prior art, the beneficial effects of the computer readable storage medium provided by the embodiment of the invention are the same as those of the parallel switching control method provided by the above embodiment, and are not described herein.
The application also provides a computer program product comprising a computer program which, when executed by a processor, implements the steps of a parallel handover control method as described above.
The computer program product provided by the application solves the technical problems of poor energy consumption performance and poor driving feeling of parallel switching control by adopting a low-cost clutch in the prior art. Compared with the prior art, the beneficial effects of the computer program product provided by the embodiment of the present application are the same as those of the parallel switching control method provided by the above embodiment, and are not described herein.
The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the application, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein, or any application, directly or indirectly, within the scope of the application.
Claims (8)
1. A parallel switching control method, characterized in that the parallel switching control method comprises:
Detecting the current speed of the vehicle in real time;
Acquiring a preprocessing vehicle speed, and comparing the current vehicle speed with the preprocessing vehicle speed;
If the current vehicle speed is equal to the pretreatment vehicle speed, controlling the engine to adjust to a preset target rotating speed, wherein the preset target rotating speed is the rotating speed matched with the rotating speed of the clutch transmission system end when the vehicle is switched to the parallel driving mode;
When the current vehicle speed is detected to reach a preset parallel switching vehicle speed, controlling a clutch to be closed, wherein the preset parallel switching vehicle speed is a preset vehicle speed for switching a driving mode of the vehicle to a parallel driving mode;
The step of obtaining the preprocessing vehicle speed comprises the following steps:
detecting the current acceleration in real time;
determining a preprocessing vehicle speed according to a preset parallel switching vehicle speed, a current acceleration and a preset rotating speed adjusting time;
and if the current vehicle speed is equal to the pretreatment vehicle speed, the step of controlling the engine to adjust to a preset target rotating speed comprises the following steps of:
if the current speed is equal to the preprocessing speed, acquiring the charge state of the battery;
And when the charge state is higher than a preset electric quantity value, controlling the engine to adjust to a preset target rotating speed.
2. The parallel shift control method according to claim 1, wherein the step of controlling the engine to be adjusted to a preset target rotation speed if the current vehicle speed is equal to the preconditioned vehicle speed comprises:
If the current vehicle speed is equal to the preprocessing vehicle speed, acquiring the opening of an accelerator pedal;
and when the opening of the accelerator pedal is smaller than a preset opening value, controlling the engine to adjust to a preset target rotating speed.
3. The parallel shift control method according to claim 1, wherein the step of controlling the engine to be adjusted to a preset target rotation speed if the current vehicle speed is equal to the preconditioned vehicle speed comprises:
If the current speed is equal to the preprocessing speed, acquiring road condition information;
and if the road condition information meets the preset parallel condition, controlling the engine to adjust to a preset target rotating speed.
4. The parallel shift control method according to claim 1, characterized by further comprising, after the step of comparing the current vehicle speed and the preconditioned vehicle speed:
If the current vehicle speed is not equal to the preprocessing vehicle speed, executing the steps of: and obtaining a pretreatment vehicle speed, and comparing the current vehicle speed with the pretreatment vehicle speed.
5. The parallel shift control method according to claim 1, wherein after the step of controlling the closing of the clutch when the current vehicle speed is detected to reach the preset parallel shift vehicle speed, further comprising:
And when the time that the current vehicle speed is detected to be continuously lower than the preset parallel switching vehicle speed exceeds the preset error time, controlling the clutch to be separated.
6. A parallel switching control device, characterized by comprising:
the vehicle speed detection module is used for detecting the current vehicle speed in real time;
The vehicle speed comparison module is used for acquiring the preprocessing vehicle speed and comparing the current vehicle speed with the preprocessing vehicle speed;
The rotating speed adjusting module is used for controlling the engine to adjust to a preset target rotating speed if the current vehicle speed is equal to the pretreatment vehicle speed, wherein the preset target rotating speed is the rotating speed matched with the rotating speed of the clutch transmission system end when the vehicle is switched to the parallel driving mode;
The clutch closing module is used for controlling the clutch to be closed when the current vehicle speed is detected to reach a preset parallel switching vehicle speed, wherein the preset parallel switching vehicle speed is a preset vehicle speed for switching a driving mode of the vehicle to a parallel driving mode;
the vehicle speed comparison module is also used for detecting the current acceleration in real time; determining a preprocessing vehicle speed according to a preset parallel switching vehicle speed, a current acceleration and a preset rotating speed adjusting time;
The rotating speed adjusting module is further used for acquiring the charge state of the battery if the current vehicle speed is equal to the preprocessing vehicle speed; and when the charge state is higher than a preset electric quantity value, controlling the engine to adjust to a preset target rotating speed.
7. An electronic device, the electronic device comprising:
at least one processor; and
A memory communicatively coupled to the at least one processor; wherein,
The memory stores instructions executable by the at least one processor to enable the at least one processor to perform the steps of the parallel handover control method of any one of claims 1 to 5.
8. A storage medium, characterized in that the storage medium is a computer-readable storage medium, on which a program for realizing a parallel switching control method is stored, the program for realizing a parallel switching control method being executed by a processor to realize the steps of the parallel switching control method according to any one of claims 1 to 5.
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