CN113715824B - Engine economy mode control method and vehicle - Google Patents

Engine economy mode control method and vehicle Download PDF

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Publication number
CN113715824B
CN113715824B CN202111147290.9A CN202111147290A CN113715824B CN 113715824 B CN113715824 B CN 113715824B CN 202111147290 A CN202111147290 A CN 202111147290A CN 113715824 B CN113715824 B CN 113715824B
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China
Prior art keywords
vehicle
engine
mode
economy mode
exit
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CN202111147290.9A
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CN113715824A (en
Inventor
钟绵远
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Weichai Power Co Ltd
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Weichai Power Co Ltd
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Priority to CN202111147290.9A priority Critical patent/CN113715824B/en
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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
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
    • B60W30/18—Propelling the vehicle
    • B60W30/182—Selecting between different operative modes, e.g. comfort and performance modes
    • 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
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/06—Combustion engines, Gas turbines
    • B60W2510/0638—Engine speed
    • 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
    • B60W2540/00—Input parameters relating to occupants
    • B60W2540/10—Accelerator pedal position
    • 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
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/84—Data processing systems or methods, management, administration

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

The application provides an engine economy mode control method and a vehicle, and relates to the technical field of engines. According to the method, after a control switch corresponding to the economy mode determines that a user selects to enter the economy mode, the vehicle is controlled to enter the economy mode, when the vehicle enters the economy mode, the rotating speed of the engine is changed from the current rotating speed to the target rotating speed, the engine is kept to constantly run at the target rotating speed, and after the fact that the rotating speed of the engine exceeds a set rotating speed threshold value through stepping on an accelerator by the user and lasts for a set duration, the vehicle is controlled to exit the economy mode. After the vehicle enters the economy mode, the engine can be kept to run at the constant rotation speed of the target rotation speed, so that the fuel consumption of the vehicle can be reduced.

Description

Engine economy mode control method and vehicle
Technical Field
The application relates to the technical field of engines, in particular to an engine economy mode control method and a vehicle.
Background
At present, most of the operation conditions of the engine for the agricultural machinery are on an external characteristic speed regulation section, namely, the operation of the vehicle is carried out to the bottom in a throttle operation mode. However, this approach results in a high fuel consumption of the vehicle.
Disclosure of Invention
In order to solve the existing technical problems, the embodiment of the application provides an engine economic mode control method and a vehicle, and the fuel consumption of the vehicle can be reduced.
In order to achieve the above object, the technical solution of the embodiment of the present application is as follows:
in a first aspect, an embodiment of the present application provides a method for controlling an economic mode of an engine, the method including:
After determining that a user selects to enter an economic mode through a control switch corresponding to the economic mode, controlling the vehicle to enter the economic mode; when the vehicle enters the economy mode, the rotating speed of the engine of the vehicle is changed from the current rotating speed to the target rotating speed;
Maintaining the engine at the target rotational speed constant;
and after the fact that the rotating speed of the engine exceeds a set rotating speed threshold value through stepping on an accelerator by a user is monitored, and the set duration is continued, the vehicle is controlled to exit the economic mode.
According to the engine economic mode control method provided by the embodiment of the application, after the user selects to enter the economic mode through the control switch corresponding to the economic mode, the vehicle is controlled to enter the economic mode, when the vehicle enters the economic mode, the rotating speed of the engine is converted from the current rotating speed to the target rotating speed, the engine is kept to constantly run at the target rotating speed, and after the fact that the rotating speed of the engine exceeds the set rotating speed threshold value by stepping on the accelerator by the user is monitored, the vehicle is controlled to exit the economic mode after the duration is continuously set. After the vehicle enters the economy mode, the engine can be kept to run at the constant rotation speed of the target rotation speed, so that the fuel consumption of the vehicle can be reduced. Moreover, the vehicle can be out of the economy mode by stepping on the accelerator, so that the failure of insufficient power can be avoided when the vehicle performs heavy-load operation.
In an alternative embodiment, after said controlling the vehicle to enter said economy mode, said method further comprises:
after determining that a user selects to exit the economy mode through a control switch corresponding to the economy mode, controlling the vehicle to exit the economy mode; or alternatively
Controlling the vehicle to exit the economy mode after the engine is monitored to stop being electrified; or alternatively
And controlling the vehicle to exit the economy mode when the abnormal engine state is detected.
In this embodiment, after the control vehicle enters the economy mode, the control vehicle may be controlled to exit the economy mode after it is determined that the user selects to exit the economy mode through the control switch corresponding to the economy mode. Or after detecting that the engine is stopped, controlling the vehicle to exit the economy mode. Or when the abnormal state of the engine is detected, controlling the vehicle to exit the economy mode. So that after the vehicle enters the economy mode, the economy mode can be exited in a number of ways.
In an alternative embodiment, after said controlling said vehicle to exit said economy mode, said method further comprises:
controlling the vehicle to enter a power mode; after the vehicle enters the power mode, the rotating speed of the engine is controlled through the throttle operation of the vehicle by the user.
In this embodiment, the vehicle may be controlled to enter the power mode after the vehicle is controlled to exit the economy mode, and the rotation speed of the engine may be controlled by the user's accelerator operation of the vehicle after the vehicle enters the power mode. Therefore, when the vehicle performs heavy-load operation, the running mode of the vehicle is converted from the economy mode to the power mode, the rotating speed of the engine is increased, normal operation of the vehicle is ensured, and the engine is prevented from being in a power shortage fault.
In an alternative embodiment, after said controlling the vehicle to enter said economy mode, said method further comprises:
Controlling the vehicle to exit the economy mode and controlling the rotation speed of the engine to be changed from the target rotation speed to an idle rotation speed when the user is monitored to brake the vehicle; the idle speed is the speed of the engine in a zero-throttle running state.
In this embodiment, after the control vehicle enters the economy mode, it is also possible to control the vehicle to exit the economy mode and control the rotational speed of the engine to shift from the target rotational speed to the idle rotational speed when it is monitored that the user brakes the vehicle. The idle speed is the speed of the engine in a zero-accelerator running state. Therefore, the vehicle can be controlled to exit the economic mode by adopting a mode of braking the vehicle, and after the economic mode exits by adopting the mode, the rotating speed of the engine needs to be changed to the idle rotating speed so as to ensure the normal operation of the engine and achieve the aim of protecting the vehicle.
In an optional embodiment, before the determining, by the control switch corresponding to the economy mode, that the user selects to enter the economy mode, the method further includes:
determining that the engine is running at or above an idle speed and the engine is in a normal state; the idle speed is the speed of the engine in a zero-throttle running state.
In this embodiment, before it is determined that the user selects the economy mode to be entered by the control switch corresponding to the economy mode, it is necessary to determine that the engine is in an operating state at or above the idle rotation speed and that the state of the engine is normal. Therefore, when the engine works normally and the engine state is normal, the vehicle is controlled to enter an economic mode, normal operation of the engine is ensured, and the purpose of protecting the vehicle can be achieved.
In a second aspect, an embodiment of the present application further provides an engine economy mode control device, including:
The economic mode entering module is used for controlling the vehicle to enter the economic mode after determining that the user selects to enter the economic mode through a control switch corresponding to the economic mode; when the vehicle enters the economy mode, the rotating speed of the engine of the vehicle is changed from the current rotating speed to the target rotating speed;
a rotation speed constant maintaining module for maintaining the engine to be constantly operated at the target rotation speed;
And the economic mode exit module is used for controlling the vehicle to exit the economic mode after detecting that the rotating speed of the engine exceeds a set rotating speed threshold value by stepping on an accelerator by a user and continuously setting the duration.
In an alternative embodiment, the economy mode exit module is further configured to:
after determining that a user selects to exit the economy mode through a control switch corresponding to the economy mode, controlling the vehicle to exit the economy mode; or alternatively
Controlling the vehicle to exit the economy mode after the engine is monitored to stop being electrified; or alternatively
And controlling the vehicle to exit the economy mode when the abnormal engine state is detected.
In an alternative embodiment, the apparatus further comprises a power mode entry module for:
controlling the vehicle to enter a power mode; after the vehicle enters the power mode, the rotating speed of the engine is controlled through the throttle operation of the vehicle by the user.
In an alternative embodiment, the economy mode exit module is further configured to:
Controlling the vehicle to exit the economy mode and controlling the rotation speed of the engine to be changed from the target rotation speed to an idle rotation speed when the user is monitored to brake the vehicle; the idle speed is the speed of the engine in a zero-throttle running state.
In an alternative embodiment, the apparatus further comprises an engine state determination module for:
determining that the engine is running at or above an idle speed and the engine is in a normal state; the idle speed is the speed of the engine in a zero-throttle running state.
In a third aspect, an embodiment of the present application further provides a computer readable storage medium having stored therein a computer program which, when executed by a processor, implements the engine economy mode control method of the first aspect.
In a fourth aspect, an embodiment of the present application further provides a vehicle, including a memory and a processor, where the memory stores a computer program executable on the processor, and when the computer program is executed by the processor, causes the processor to implement the engine economy mode control method of the first aspect.
The technical effects caused by any implementation manner of the second aspect to the fourth aspect may refer to the technical effects caused by the corresponding implementation manner of the first aspect, and are not described herein.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it will be apparent that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for controlling an economy mode of an engine according to an embodiment of the present application;
FIG. 2 is a logic diagram of an engine mode control according to an embodiment of the present disclosure;
FIG. 3 is a flow chart of another engine economy mode control method provided by an embodiment of the present application;
FIG. 4 is a schematic diagram of an engine economy mode control device according to an embodiment of the present application;
FIG. 5 is a schematic diagram of another engine economy mode control device according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a vehicle according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described in further detail below with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that the terms "comprises" and "comprising," along with their variants, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
At present, most of the operation conditions of the engine for the agricultural machinery are on an external characteristic speed regulation section, namely, the operation mode of operating the accelerator is adopted to bottom when the vehicle is operated. However, this approach results in a high fuel consumption of the vehicle.
In the related art, a mode of a multi-power fuel-saving switch is adopted, and different external characteristic curves are set through different gears. This approach typically requires that the vehicle be set to operate at the corresponding power by the user manually selecting a plurality of gear switches of the multi-power fuel-saving switch, which may cause the vehicle to fail in power shortage if the user forgets to turn the gear switch when the vehicle is in a high-load operation state, and still requires the user to operate the throttle. Therefore, the mode of adopting the multi-power fuel-saving switch is complicated to operate, and the fuel consumption of the vehicle cannot be reduced well.
In order to reduce the oil consumption of a vehicle, enable the operation of a user to be simple and avoid the occurrence of power shortage faults of the vehicle, the application provides an engine economic mode control method.
The following describes in detail the technical solution provided by the embodiments of the present application with reference to the accompanying drawings.
The embodiment of the application provides an engine economic mode control method, which is shown in fig. 1 and comprises the following steps:
step S101, after the control switch corresponding to the economy mode determines that the user selects to enter the economy mode, the vehicle is controlled to enter the economy mode.
When the vehicle enters the economy mode, the rotation speed of the engine of the vehicle is changed from the current rotation speed to the target rotation speed.
In step S101, a control switch corresponding to the economy mode may be installed in the cab of the vehicle, and when the vehicle is in the power mode, that is, the vehicle is normally operated, if the control switch is closed by the user, the vehicle may be controlled to be switched from the power mode to the economy mode, and when the vehicle enters the economy mode, the rotation speed of the engine is switched from the current rotation speed to the target rotation speed.
Step S102, keeping the engine constantly running at the target rotation speed.
After controlling the vehicle into the economy mode, the engine may be kept running at the target rotational speed.
Step S103, after the fact that the rotation speed of the engine exceeds the set rotation speed threshold value by stepping on the accelerator by the user is monitored, the vehicle is controlled to exit the economic mode after the set time duration is continuously set.
After the vehicle enters the economy mode, if the user steps on the accelerator to enable the rotating speed of the engine to exceed the set rotating speed threshold, namely the rotating speed of the engine exceeds the target rotating speed, and the difference between the rotating speed and the target rotating speed meets the set threshold, and after the set duration, the vehicle can be controlled to exit the economy mode. After the vehicle exits the economy mode, the vehicle may be controlled to enter a power mode.
Before the user selects to enter the economy mode through the control switch corresponding to the economy mode, the engine is required to be determined to run at the idle speed or higher, and the engine is normal. The idle speed is the speed of the engine in a zero-accelerator running state.
In one embodiment, after the vehicle is controlled to enter the economy mode, the vehicle may be controlled to exit the economy mode after the user determines that the user selects to exit the economy mode through the control switch corresponding to the economy mode. Or controlling the vehicle to exit the economy mode after the engine is monitored to stop powering, or controlling the vehicle to exit the economy mode when the engine state abnormality is monitored. And, after controlling the vehicle to exit the economy mode, the vehicle may be controlled to enter the power mode. Wherein, after the vehicle enters the power mode, the rotating speed of the engine is controlled by the accelerator operation of the user on the vehicle.
In another embodiment, after the control vehicle enters the economy mode, the control vehicle exits the economy mode and controls the rotational speed of the engine to transition from the target rotational speed to the idle rotational speed upon monitoring that the user brakes the vehicle. The idle speed is the speed of the engine in a zero-accelerator running state.
In general, a vehicle such as an agricultural machine has two kinds of accelerator, i.e., a hand accelerator and a foot accelerator, and the foot accelerator is mainly used for vehicle transition, the hand accelerator is mainly used for normal operation of the vehicle, and the main purpose of the hand accelerator is to solve the problem of unstable opening of the foot accelerator in the operation process. The hand throttle is pulled to the bottom, and the running mode of the vehicle with constant engine speed is ensured to be a power mode. In the power mode, a user is required to operate the throttle to adjust the speed of the vehicle and the engine speed at any time. In the cab of the vehicle, a control switch may be installed, which is a switch corresponding to the economy mode, and when the control switch is closed by a user, the engine may be operated at a constant rotation speed without performing an accelerator operation.
FIG. 2 is a control logic diagram of the engine in a power mode and an economy mode. As shown in fig. 2, the engine is operated in the power mode by controlling the rotation speed of the engine in a mode of the ratio of the hand throttle to the foot throttle, namely, the engine is operated by adopting the rotation speed corresponding to the larger throttle of the hand throttle and the foot throttle. The engine is operated in the economy mode with a constant speed to control the speed of the engine, i.e. the engine is operated at a constant speed.
In some embodiments, the engine economy mode control method of the present application may also be implemented in accordance with the process shown in fig. 3. As shown in fig. 3, the steps may be included as follows:
In step S301, it is determined that the rotational speed of the engine is greater than or equal to the idle rotational speed and the engine state is normal.
And determining that the engine works normally, namely the rotating speed of the engine is larger than or equal to the idle rotating speed, and the engine is in a normal state.
Step S302, after the control switch corresponding to the economy mode is closed, the vehicle is controlled to enter the economy mode.
When the control switch corresponding to the economy mode is closed by the user, the vehicle can be controlled to enter the economy mode.
In step S303, when the vehicle enters the economy mode, the rotation speed of the engine is changed from the current rotation speed to the target rotation speed.
When the vehicle enters the economy mode, the rotational speed of the engine needs to be changed from the current rotational speed to the target rotational speed. The engine ECU may record the current rotational speed of the engine and calculate a path from the current rotational speed to the target rotational speed when the control switch corresponding to the economy mode is closed, so as to ensure a smooth change in the rotational speed of the engine.
Step S304, keeping the engine running constantly at the target rotation speed.
After the vehicle enters the economy mode, the engine can be kept running constantly at the target rotational speed. For example, the target rotational speed may be 1800rpm.
When the engine is constantly running at the target rotation speed, the engine ECU can automatically increase or decrease the oil quantity according to the change of the external load so as to maintain the rotation speed of the engine to be stable.
In step S305, after detecting that the rotation speed of the engine exceeds the set rotation speed threshold by stepping on the accelerator, and continuously for a set period of time, the vehicle is controlled to exit the economy mode.
After the fact that the rotating speed of the engine exceeds the set rotating speed threshold value through the fact that the user steps on the accelerator is monitored, and the set time duration is continued, the vehicle can be controlled to exit the economic mode. For example, when the accelerator is depressed such that the rotational speed of the engine exceeds the target rotational speed +100rpm and exceeds 2s, the vehicle may be controlled to exit the economy mode.
And step S306, after the control switch corresponding to the economy mode is turned on, the vehicle is controlled to exit the economy mode.
Or after the control switch corresponding to the economy mode is turned on, the vehicle can be controlled to exit the economy mode.
In step S307, after detecting that the engine is stopped, the vehicle is controlled to exit the economy mode.
Or after detecting that the engine is stopped, i.e., detecting that the engine T15 is powered down, the vehicle may be controlled to exit the economy mode.
In step S308, when an abnormal engine state is detected, the vehicle is controlled to exit the economy mode.
Or upon detecting an engine condition anomaly, may control the vehicle to exit the economy mode.
Step S309, control the vehicle to enter the power mode.
After the vehicle exits the economy mode, the vehicle may be controlled to enter a power mode. Further, after the vehicle enters the power mode, the rotation speed of the engine needs to be controlled by the user's accelerator operation of the vehicle.
In step S310, when it is monitored that the user brakes the vehicle, the vehicle is controlled to exit the economy mode, and the rotation speed of the engine is controlled to be shifted from the target rotation speed to the idle rotation speed.
After the vehicle enters the economy mode, the vehicle may also be controlled to exit the economy mode if it is monitored that the user brakes the vehicle. After the vehicle exits the economy mode, the rotational speed of the engine may be controlled to transition from the target rotational speed to the idle rotational speed.
The road spectrum analysis shows that compared with the engine running in the power mode, the engine running in the economy mode can save 19.2% of fuel, and the fuel consumption of the vehicle is greatly reduced.
According to the engine economy mode control method provided by the embodiment of the application, the control switch corresponding to the economy mode can be arranged in the cab of the vehicle, the running mode of the engine can be switched through switching the control switch, namely, after the control switch is closed, the running mode of the engine can be switched from the power mode to the economy mode, at the moment, the rotating speed of the engine can be switched to the target rotating speed, and the engine keeps the target rotating speed to be constantly operated; when the control switch is turned on, or the user steps on the accelerator to enable the rotating speed of the engine to exceed the set rotating speed threshold value and continuously set time, or the engine state is abnormal, the running mode of the engine can be switched from the economy mode to the power mode.
Since the rotation speed of the engine can be fixed at a target rotation speed for constant operation, the fuel consumption of the vehicle can be reduced. According to the method, only one control switch is needed to be added, the vehicle is not required to be subjected to large structural change, the structure is simple, and after the vehicle enters an economic mode, a user does not need to perform accelerator operation, and a constant rotating speed function can be used, so that the rotating speed of the engine is constant, the operation is simple, and the oil consumption can be reduced on the premise that the vehicle can normally work. In addition, when the vehicle performs heavy-load operation, the vehicle can exit the economic mode and enter the power mode by stepping on the accelerator to increase the rotating speed, so that the power performance of the vehicle can be improved in time, the normal operation of the vehicle is ensured, and the failure of insufficient power of the vehicle is avoided.
The same concept as the engine economy mode control method shown in fig. 1 is based on, and the embodiment of the application also provides an engine economy mode control device. Because the device is a device corresponding to the engine economic mode control method of the application, and the principle of the device for solving the problem is similar to that of the method, the implementation of the device can be referred to the implementation of the method, and the repetition is omitted.
Fig. 4 shows a schematic structural diagram of an engine economy mode control device according to an embodiment of the present application, and as shown in fig. 4, the engine economy mode control device includes an economy mode entry module 401, a rotation speed constant maintenance module 402, and an economy mode exit module 403.
The economy mode entering module 401 is configured to control the vehicle to enter the economy mode after determining that the user selects to enter the economy mode through a control switch corresponding to the economy mode; when the vehicle enters an economy mode, the rotating speed of the engine of the vehicle is changed from the current rotating speed to the target rotating speed;
A rotation speed constant maintaining module 402 for maintaining the engine to be constantly operated at a target rotation speed;
The economy mode exit module 403 is configured to control the vehicle to exit the economy mode after detecting that the rotation speed of the engine exceeds the set rotation speed threshold by stepping on the accelerator by the user and for a set duration.
In an alternative embodiment, the economic mode exit module 403 is further configured to:
after determining that the user selects to exit the economy mode through a control switch corresponding to the economy mode, controlling the vehicle to exit the economy mode; or alternatively
After the power-on of the engine is monitored, controlling the vehicle to exit the economy mode; or alternatively
And when the abnormal state of the engine is detected, controlling the vehicle to exit the economy mode.
In an alternative embodiment, as shown in fig. 5, the apparatus may further include a power mode entry module 501 for:
Controlling the vehicle to enter a power mode; after the vehicle enters the power mode, the rotational speed of the engine is controlled by the user's throttle operation of the vehicle.
In an alternative embodiment, the economic mode exit module 403 is further configured to:
When the user is monitored to brake the vehicle, controlling the vehicle to exit the economy mode, and controlling the rotating speed of the engine to be changed from the target rotating speed to the idle rotating speed; the idle speed is the speed of the engine in a zero throttle operating state.
In an alternative embodiment, as shown in fig. 5, the apparatus may further include an engine state determination module 502 configured to:
Determining that the engine runs at the idle speed or higher and the engine state is normal; the idle speed is the speed of the engine in a zero throttle operating state.
Based on the same inventive concept as the above-described method embodiment, a vehicle is also provided in the embodiment of the present application. The vehicle can realize the economic mode control of the engine. In one embodiment, the vehicle may be an agricultural machine. In this embodiment, the structure of the vehicle may include a memory 601 and one or more processors 602 as shown in FIG. 6.
A memory 601 for storing a computer program for execution by the processor 602. The memory 601 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, programs required for running an instant messaging function, and the like; the storage data area can store various instant messaging information, operation instruction sets and the like.
The memory 601 may be a volatile memory (RAM) such as a random-access memory (RAM); the memory 601 may also be a non-volatile memory (non-volatile memory), such as a read-only memory, a flash memory (flash memory), a hard disk (HARD DISK DRIVE, HDD) or a solid-state disk (SSD), or the memory 601 may be any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto. The memory 601 may be a combination of the above memories.
The processor 602 may include one or more central processing units (central processing unit, CPUs) or a digital processing unit, or the like. Processor 602 is configured to implement the engine economy mode control method described above when calling the computer program stored in memory 501.
The specific connection medium between the memory 601 and the processor 602 is not limited in the embodiments of the present application. The embodiment of the present disclosure is shown in fig. 6, where the memory 601 and the processor 602 are connected by a bus 603, where the bus 603 is shown in fig. 6 with a bold line, and the connection between other components is merely illustrative, and not limited thereto. The bus 603 may be classified into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in fig. 6, but not only one bus or one type of bus.
According to one aspect of the present application, there is provided a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions so that the computer device executes the engine economy mode control method in the above-described embodiment.
The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium would include the following: an electrical connection having one or more wires, a portable disk, a hard disk, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
The foregoing is merely illustrative of the present application, and the present application 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 application.

Claims (9)

1. A method of engine economy mode control, the method comprising:
After determining that a user selects to enter an economic mode through a control switch corresponding to the economic mode, controlling the vehicle to enter the economic mode; when the vehicle enters the economy mode, the rotating speed of the engine of the vehicle is changed from the current rotating speed to the target rotating speed;
Maintaining the engine at the target rotational speed constant;
After the fact that the rotating speed of the engine exceeds a set rotating speed threshold value through stepping on an accelerator by a user is monitored, and the set duration is continued, the vehicle is controlled to exit the economic mode; controlling the vehicle to exit the economy mode and controlling the rotation speed of the engine to be changed from the target rotation speed to an idle rotation speed when the user is monitored to brake the vehicle; the idle speed is the speed of the engine in a zero-throttle running state.
2. The method of claim 1, wherein after the control vehicle enters the economy mode, the method further comprises:
after determining that a user selects to exit the economy mode through a control switch corresponding to the economy mode, controlling the vehicle to exit the economy mode; or alternatively
Controlling the vehicle to exit the economy mode after the engine is monitored to stop being electrified; or alternatively
And controlling the vehicle to exit the economy mode when the abnormal engine state is detected.
3. The method of claim 2, wherein after the controlling the vehicle to exit the economy mode, the method further comprises:
controlling the vehicle to enter a power mode; after the vehicle enters the power mode, the rotating speed of the engine is controlled through the throttle operation of the vehicle by the user.
4. A method according to any one of claims 1 to 3, wherein before the determination of the user selection to enter the economy mode by the control switch corresponding to the economy mode, the method further comprises:
determining that the engine is running at or above an idle speed and the engine is in a normal state; the idle speed is the speed of the engine in a zero-throttle running state.
5. An engine economy mode control device, characterized by comprising:
The economic mode entering module is used for controlling the vehicle to enter the economic mode after determining that the user selects to enter the economic mode through a control switch corresponding to the economic mode; when the vehicle enters the economy mode, the rotating speed of the engine of the vehicle is changed from the current rotating speed to the target rotating speed;
a rotation speed constant maintaining module for maintaining the engine to be constantly operated at the target rotation speed;
The economic mode exit module is used for controlling the vehicle to exit the economic mode after monitoring that the rotation speed of the engine exceeds a set rotation speed threshold value by stepping an accelerator by a user and the set duration is continuous; controlling the vehicle to exit the economy mode and controlling the rotation speed of the engine to be changed from the target rotation speed to an idle rotation speed when the user is monitored to brake the vehicle; the idle speed is the speed of the engine in a zero-throttle running state.
6. The apparatus of claim 5, wherein the economy mode exit module is further configured to:
after determining that a user selects to exit the economy mode through a control switch corresponding to the economy mode, controlling the vehicle to exit the economy mode; or alternatively
Controlling the vehicle to exit the economy mode after the engine is monitored to stop being electrified; or alternatively
And controlling the vehicle to exit the economy mode when the abnormal engine state is detected.
7. The apparatus of claim 6, further comprising a power mode entry module to:
controlling the vehicle to enter a power mode; after the vehicle enters the power mode, the rotating speed of the engine is controlled through the throttle operation of the vehicle by the user.
8. A computer-readable storage medium having a computer program stored therein, characterized in that: the computer program, when executed by a processor, implements the method of any of claims 1-4.
9. A vehicle comprising a memory and a processor, the memory having stored thereon a computer program executable on the processor, which when executed by the processor, implements the method of any of claims 1-4.
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