CN114576018A - Engine torque transient response method and device, electronic equipment and storage medium - Google Patents
Engine torque transient response method and device, electronic equipment and storage medium Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/02—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/04—Engine intake system parameters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
- F02D2200/101—Engine speed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/60—Input parameters for engine control said parameters being related to the driver demands or status
- F02D2200/602—Pedal position
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The invention provides an engine torque transient response method, an engine torque transient response device, electronic equipment and a readable storage medium. The engine torque transient response method includes: acquiring a first signal value representing the operation condition of the engine, wherein the first signal value at least comprises the following components: the sensor measures a signal value and a model quantity signal value, and a torque transient response mode is activated when the first signal value meets a first preset condition. Whether the first signal value meets a first preset condition or not is judged by obtaining a first signal value reflecting the operation condition of the engine, and if the first signal value meets the first preset condition, a torque transient response mode is activated, wherein the torque transient response mode aims at optimizing the charging efficiency, so that the aim of shortening the torque transient response time is fulfilled.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to an engine torque transient response method, an engine torque transient response device, electronic equipment and a storage medium.
Background
The miller cycle engine is one of the main options for energy conservation and emission reduction under the increasingly stringent requirements of oil consumption and emission regulations by effectively reducing the pumping loss and improving the combustion efficiency.
In the ECU software control strategy in the related technology, the traditional control strategy of the Otto cycle supercharged engine is used, during the transient response of torque, the phase of an intake and exhaust target is the same as the phase selected under a steady state working condition (namely the working condition that the rotating speed and the load of the engine are stable and unchanged), and the principle of selecting the phase under the steady state working condition is that the oil consumption, the performance and the emission are optimal, but the charging efficiency is not optimal.
For the supercharged engine with the Miller cycle, a camshaft design scheme with an air inlet wrap angle smaller than that of the Otto cycle is usually adopted for realizing the Miller cycle, and the size of the air inlet wrap angle has direct influence on the size of a charging amount, so that the intrinsic charging efficiency problem of the Miller cycle engine is brought.
Disclosure of Invention
The embodiment of the invention provides an engine torque transient response method, aiming at activating a torque transient response mode according to a signal value representing a rotating speed load interval of engine operation, aiming at optimizing charging efficiency and shortening the torque transient response time.
In order to solve the technical problem, the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides an engine torque transient response method, including:
obtaining a first signal value representing an engine operating condition, the first signal value comprising at least: the sensor measures the signal value and the model quantity signal value;
and activating a torque transient response mode when the first signal value meets a first preset condition.
Optionally, the sensor measuring signal values comprises at least: the method comprises the following steps of (1) rotating speed of an engine, opening of an accelerator pedal of a driver, actual boost pressure and actual air inflow;
the model quantity signal values comprise at least: desired torque and desired boost pressure.
Optionally, the first preset condition includes:
the rotating speed of the engine is in a preset rotating speed interval; and the number of the first and second electrodes,
the opening degree of an accelerator pedal of the driver is greater than a preset opening degree; and the number of the first and second electrodes,
the actual boost pressure is within a first preset pressure interval; and the number of the first and second electrodes,
the actual air inflow is within a preset air inflow interval; and the number of the first and second electrodes,
the desired torque is greater than a preset torque; and the number of the first and second electrodes,
the desired boost pressure is greater than a second preset pressure.
Optionally, the step of activating a torque transient response mode comprises:
driving a throttle to a fully open position; and the number of the first and second electrodes,
driving a pressure adjusting mechanism of the supercharger to a preset position; and the number of the first and second electrodes,
the method comprises the steps of obtaining the load of an engine, and driving an air intake and exhaust phase to a position with maximum inflation efficiency under the corresponding load according to the load of the engine.
Optionally, the supercharger pressure adjustment mechanism comprises an exhaust gas bypass valve type supercharger and a variable cross-section type supercharger;
the step of driving the supercharger pressure adjustment mechanism to a preset position includes:
driving a bypass valve of an exhaust gas bypass valve type supercharger to a fully closed position; and the number of the first and second electrodes,
the nozzle ring of the variable cross-section supercharger is driven to a minimum flow position.
Optionally, after the step of obtaining the first signal value indicative of the engine operating condition, the engine torque transient response method further comprises:
starting a timer by an activation timer to control the duration of the torque transient response mode activation;
and when the first signal value does not meet a first preset condition, resetting a timer to an initial value, and returning to the step of acquiring the first signal value representing the running condition of the engine.
Optionally, after the step of activating the torque transient response mode when the first signal value satisfies a first preset condition, the engine torque transient response method further includes:
when the timing of the timer is not finished, acquiring a signal value representing the running condition of the engine in real time so as to update the first signal value;
when the updated first signal value meets a first preset condition, continuing to execute a torque transient response mode;
when the updated first signal value does not meet the first preset condition, resetting the timer to an initial value, and exiting the torque transient response mode;
when the timer is over, the timer is reset to an initial value and the torque transient response mode is exited.
In a second aspect, an embodiment of the present invention provides an engine torque transient response device, comprising:
an acquisition module configured to acquire a first signal value indicative of an operating condition of an engine, the first signal value comprising at least: the sensor measures a signal value and a model quantity signal value;
the first activating module is used for activating a torque transient response mode when the first signal value meets a first preset condition.
Optionally, the sensor measuring signal values comprises at least: the method comprises the following steps of (1) rotating speed of an engine, opening of an accelerator pedal of a driver, actual boost pressure and actual air inflow;
the model quantity signal values comprise at least: a desired torque and a desired boost pressure.
Optionally, the first preset condition includes:
the rotating speed of the engine is within a preset rotating speed interval; and the number of the first and second electrodes,
the opening degree of an accelerator pedal of the driver is greater than a preset opening degree; and the number of the first and second electrodes,
the actual boost pressure is within a first preset pressure interval; and the number of the first and second electrodes,
the actual air inflow is in a preset air inflow interval; and the number of the first and second electrodes,
the desired torque is greater than a preset torque; and the number of the first and second electrodes,
the desired boost pressure is greater than a second preset pressure.
Optionally, the first activation module includes:
a first drive submodule for driving the throttle to a wide open position;
the second driving module is used for driving the pressure adjusting mechanism of the supercharger to a preset position;
and the third driving submodule is used for acquiring the load of the engine in real time and driving the air intake and exhaust phases to the position of the maximum air charging efficiency under the corresponding load according to the load of the engine.
Optionally, the supercharger pressure adjustment mechanism comprises an exhaust gas bypass valve type supercharger and a variable cross-section type supercharger;
the second drive submodule includes:
a first drive subunit for driving a bypass valve of an exhaust gas bypass valve type supercharger to a fully closed position;
and the second driving subunit is used for driving the nozzle ring of the variable-section supercharger to the minimum flow position.
Optionally, after the obtaining module, the engine torque transient response device further comprises:
the second activation module is used for activating a timer to start timing so as to control the duration of the activation of the torque transient response mode;
and the return module is used for resetting the timer to an initial value when the first signal value does not meet a first preset condition, and returning to the step of acquiring the first signal value representing the operating condition of the engine.
Optionally, after the first activation module, the engine torque transient response device further comprises:
the updating module is used for acquiring a signal value representing the running condition of the engine in real time when the timer does not finish timing so as to update the first signal value;
the continuous execution module is used for continuously executing the torque transient response mode when the updated first signal value meets a first preset condition;
the first quitting module is used for resetting the timer to an initial value and quitting the torque transient response mode when the updated first signal value does not meet the first preset condition;
and the second exit module is used for resetting the timer to the initial value when the timer finishes timing and exiting the torque transient response mode.
In a third aspect, an embodiment of the present invention additionally provides an electronic device, including: a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program when executed by the processor implementing the steps of the engine torque transient response method of the first aspect.
In a fourth aspect, the embodiments of the present invention additionally provide a computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the steps of the engine torque transient response method described in the first aspect above.
In the invention, by acquiring a first signal value reflecting the operation condition of the engine, the first signal value at least comprises the following components: the sensor measures a signal value and a model quantity signal value, and a torque transient response mode is activated when the first signal value meets a first preset condition. Whether the first signal value meets a first preset condition or not is judged by obtaining a first signal value reflecting the operation condition of the engine, and if the first signal value meets the first preset condition, a torque transient response mode is activated, wherein the torque transient response mode aims at optimizing the charging efficiency to improve the boost pressure establishment rate, so that the aim of shortening the torque transient response time is fulfilled.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without inventive labor.
FIG. 1 is a flow chart of steps of a method of transient response of an engine torque according to an embodiment of the present invention;
FIG. 2 is a block control flow diagram of an engine torque transient response method in accordance with an embodiment of the present invention;
FIG. 3 is a schematic illustration of an engine torque transient response arrangement in accordance with an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electronic device in an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The miller cycle engine is one of the main options for energy conservation and emission reduction under the increasingly stringent requirements of oil consumption and emission regulations by effectively reducing the pumping loss and improving the combustion efficiency. The medium and small displacement engine adopts the Miller cycle design, combines the turbocharging technology (including exhaust gas valve type turbocharger or variable cross section turbocharger, etc.), can compensate the loss of engine performance caused by the Miller technology, and further reduces the oil consumption emission level of the engine working interval.
In the case of a supercharged engine, the transient response time of torque is an important index for evaluating the power responsiveness of the supercharged engine, the same torque output is achieved, and the shorter the transient response time is, the faster the power responsiveness of the engine is, and the vehicle power performance after the whole vehicle is mounted is also directly influenced. The decisive factor for the torque transient response is the rate at which boost pressure builds, and in the case of a frozen boost system hardware design, the optimization of responsiveness depends on the control strategy of the ECU software. In the existing ECU control strategy, the control strategy of the traditional Otto cycle supercharged engine is adopted, when a driver sends a torque quick response demand, actuators influencing air intake, such as a throttle valve, a supercharger, a phaser and the like, can simultaneously and quickly respond, wherein the phaser can control the air intake phase and the exhaust phase to act according to a timing phase which is well calibrated in the ECU.
In the ECU software control strategy in the related technology, the traditional control strategy of the Otto cycle supercharged engine is used, during the transient response of torque, the phase of an intake and exhaust target is the same as the phase selected under a steady state working condition (namely the working condition that the rotating speed and the load of the engine are stable and unchanged), and the principle of selecting the phase under the steady state working condition is that the oil consumption, the performance and the emission are optimal, but the charging efficiency is not optimal. For a traditional supercharging engine with an Otto cycle, the charging efficiency is high under a transient working condition (namely a working condition that the engine speed and the load continuously change), and no obvious torque response problem exists by using the control strategy. For the supercharged engine with the Miller cycle, a camshaft design scheme with an air inlet wrap angle smaller than that of the Otto cycle is usually adopted for realizing the Miller cycle, and the size of the air inlet wrap angle has direct influence on the size of the air charge, so that the intrinsic air charge efficiency problem of the Miller cycle engine is brought.
In order to overcome the above problems, the present application provides an engine torque transient response method, which aims to activate a torque transient response mode according to a signal value representing a rotational speed load interval of an engine operation, so as to shorten a torque transient response duration with the purpose of optimizing charging efficiency.
Referring to fig. 1 and 2, fig. 1 is a flowchart illustrating steps of an engine torque transient response method in an embodiment of the present invention, and fig. 2 is a block diagram illustrating a control flow of an engine torque transient response method in an embodiment of the present invention, which is applied to an ECU (electronic control unit), as shown in fig. 1 and 2, the method including:
step S101: obtaining a first signal value representing an engine operating condition, the first signal value comprising at least: the sensor measures a signal value and a model quantity signal value.
The invention is suitable for the engine carrying the Miller cycle and the turbocharging technology, in the embodiment, the operation condition of the engine is constantly changed, the first signal value representing the operation condition of the engine is the signal value representing the rotating speed load interval of the operation of the engine, and the intention of a driver is judged by acquiring the first signal value. The first signal value at least comprises a sensor measurement signal value and a model quantity signal value, the sensor signal measurement value is directly acquired through sensors arranged on all parts of the automobile, and the model quantity signal value is calculated through all acquired automobile signal values.
Step S102: and activating a torque transient response mode when the first signal value meets a first preset condition.
In the embodiment, a first preset condition is preset so as to judge the intention of a driver according to an acquired first signal value, and if the first signal value meets the first preset condition, the driver is considered to want to enter a torque transient response mode, so that the torque transient response mode is activated, wherein the torque transient response mode aims at optimizing the charging efficiency, so that the boost pressure can be quickly established, and the purpose of shortening the torque transient response time period is achieved.
In an embodiment of the present invention, by obtaining a first signal value representing an operating condition of an engine, the first signal value includes at least: the sensor measures a signal value and a model quantity signal value, and a torque transient response mode is activated when the first signal value meets a first preset condition. Whether the first signal value meets a first preset condition or not is judged by obtaining a first signal value reflecting the operation condition of the engine, and if the first signal value meets the first preset condition, a torque transient response mode is activated, wherein the torque transient response mode aims at optimizing the charging efficiency, and aiming at the problem of slow response caused by the fact that the Miller cycle turbocharged engine continues to use the traditional torque transient response control strategy, the effect of accelerating the torque response rate is achieved by using a special actuator control strategy under the dynamic condition and taking the optimizing of the charging efficiency as a control target.
With continued reference to fig. 2, in one possible embodiment, the sensor measuring signal values includes at least: the method comprises the following steps of (1) rotating speed of an engine, opening of an accelerator pedal of a driver, actual boost pressure and actual air inflow;
the model quantity signal values comprise at least: a desired torque and a desired boost pressure.
In the present embodiment, the engine speed is the speed of the output shaft of the engine measured by the sensor, for example 1000r/min, the opening degree of the accelerator pedal of the driver is the ratio of the opening degree of the accelerator pedal stepped by the driver to the total opening degree of the accelerator pedal, e.g., 20% of the driver's accelerator pedal opening, the actual boost pressure may be expressed as a ratio to the maximum boost pressure, the actual boost pressure is 50%, for example, the actual intake air amount may be expressed as a ratio to the maximum intake air amount, for example, the actual intake air amount is 50%, the desired torque may be obtained by calculating the engine speed, the opening degree of the accelerator pedal of the driver, and the vehicle speed, and then the desired boost pressure may be obtained by calculating the desired torque, the desired torque may be represented as a ratio to the maximum torque, and the desired boost pressure may be represented as a ratio to the maximum boost pressure.
In a possible embodiment, the first preset condition includes:
the rotating speed of the engine is within a preset rotating speed interval; and the number of the first and second electrodes,
the opening degree of an accelerator pedal of the driver is greater than a preset opening degree; and the number of the first and second electrodes,
the actual boost pressure is within a first preset pressure interval; and the number of the first and second electrodes,
the actual air inflow is in a preset air inflow interval; and the number of the first and second electrodes,
the desired torque is greater than a preset torque; and the number of the first and second electrodes,
the desired boost pressure is greater than a second preset pressure.
In the present embodiment, whether to activate the torque transient response mode is determined by presetting a first preset condition, specifically, for each acquired sensor measurement signal value and model quantity signal value, corresponding determination conditions are set, for example, a preset rotation speed interval is set to 1000-.
In one possible embodiment, the step of activating the torque transient response mode includes:
driving a throttle to a fully open position;
driving a pressure adjusting mechanism of the supercharger to a preset position;
the method comprises the steps of acquiring the load of an engine in real time, and driving an air intake and exhaust phase to a maximum inflation efficiency position under the corresponding load according to the load of the engine.
In the embodiment, the throttle valve is a controllable valve for controlling air to enter the engine, the air is mixed with gasoline to become combustible mixed gas after entering the air inlet pipe, so as to perform work through combustion, the air inlet quantity of the air entering the engine is improved by driving the throttle valve to the full-open position, the supercharger pressure adjusting mechanism is driven to the preset position, the load of the engine is simultaneously obtained in real time, the air inlet and outlet phases are driven to the maximum inflation efficiency position under the corresponding load according to the load of the engine, so that the supercharging pressure can be quickly established, specifically, the load of the engine is continuously changed in the supercharging process, for different engine loads, a plurality of intervals are set for the engine load, each engine load interval is provided with the corresponding maximum inflation efficiency position, for example, the load of the engine is divided into 10% intervals, the total number of the intervals is 10, each interval is provided with a maximum charging efficiency position corresponding to the air intake and exhaust phase, for example, if the current engine load is 45%, and the current engine load belongs to the interval of 40% -50%, the maximum charging efficiency position corresponding to the interval of 40% -50% of the air intake and exhaust phase is driven, so that the boost pressure can be quickly established.
Specifically, in one possible embodiment, the supercharger pressure adjusting mechanism includes a waste gate valve type supercharger and a variable-section type supercharger, and the step of driving the supercharger pressure adjusting mechanism to the preset position includes:
driving a bypass valve of an exhaust gas bypass valve type supercharger to a fully closed position;
the nozzle ring of the variable cross-section supercharger is driven to a minimum flow position.
In the present embodiment, the supercharger pressure adjusting mechanism includes a wastegate valve type supercharger and a variable cross-section type supercharger, and the supercharging pressure can be increased as much as possible by driving the bypass valve of the wastegate valve type supercharger to the fully closed position and driving the nozzle ring of the variable cross-section type supercharger to the minimum flow rate position, so as to shorten the torque transient response time period.
In one possible embodiment, after step S101, the engine torque transient response method further includes:
starting a timer by an activation timer to control the duration of the torque transient response mode activation;
and when the first signal value does not meet a first preset condition, resetting a timer to an initial value, and returning to the step of acquiring the first signal value representing the running condition of the engine.
In this embodiment, a timer is set to control the period of time that the torque transient response mode is activated, and in this embodiment, the timer is activated after the first signal value is obtained, so that the timer starts to count time, specifically, the timing period of the timer is set to 3 seconds, and when the timer counts for more than 3 seconds, the timing is ended. When the first signal value does not meet the first preset condition, resetting the timer to an initial value, wherein the initial value is the initial value of the preset timer for starting timing, the initial value is usually set to 00:00, namely zero second and zero millisecond, then returning to the step S101, re-acquiring the first signal value representing the running condition of the engine, then re-activating the timer, judging whether the first signal value meets the first preset condition, if the first signal value does not meet the first preset condition, repeatedly executing the steps, and if the first signal value meets the first preset condition, activating the torque transient response mode.
Or, when the torque transient response mode is activated, activating a timer to start timing, specifically, when the first signal value does not satisfy the first preset condition, resetting the timer to an initial value, then returning to step S101, re-acquiring the first signal value representing the operating condition of the engine, and determining whether the first signal value satisfies the first preset condition, if the first signal value does not satisfy the first preset condition, repeatedly executing the above steps, and if the first signal value satisfies the first preset condition, activating the torque transient response mode, and then re-activating the timer.
In one possible implementation, after step S102, the engine torque transient response method further includes:
when the timing of the timer is not finished, acquiring a signal value representing the running condition of the engine in real time so as to update the first signal value;
when the updated first signal value meets a first preset condition, continuing to execute a torque transient response mode;
when the updated first signal value does not meet the first preset condition, resetting the timer to an initial value, and exiting the torque transient response mode;
when the timer is over, the timer is reset to an initial value and the torque transient response mode is exited.
In this embodiment, after the torque transient response mode is activated, and the timer does not count time, a signal value representing an engine operating condition is obtained in real time to update the first signal value, specifically, if the timing duration of the timer is set to 3 seconds, and when the timer does not count time for more than 3 seconds, the timer does not count time, and at this time, a signal value representing the engine operating condition is obtained in real time to update the obtained first signal value.
And then, whether the updated first signal value meets the first preset condition or not is judged again, when the updated first signal value meets the first preset condition, the torque transient response mode is continuously executed, if the updated first signal value meets the first preset condition, the boosting is not needed any more, and at the moment, the torque transient response mode is quitted. When the timer expires, the timer is reset to an initial value and the torque transient response mode is exited. The problems that due to the fact that the effective compression ratio is too large at the position with the maximum inflation efficiency in the long-time air intake and exhaust phase, pre-ignition and supercharging overshoot are caused are solved.
Referring to fig. 3, fig. 3 is a schematic diagram of an engine torque transient response device according to an embodiment of the present invention, and based on the same inventive concept, an embodiment of the present invention provides an engine torque transient response device, as shown in fig. 3, the engine torque transient response device includes:
an obtaining module 301, configured to obtain a first signal value representing an operating condition of an engine, where the first signal value at least includes: the sensor measures the signal value and the model quantity signal value;
a first enabling module 302 enables a torque transient response mode when the first signal value satisfies a first predetermined condition.
Optionally, the sensor measuring signal values comprises at least: the method comprises the following steps of (1) rotating speed of an engine, opening of an accelerator pedal of a driver, actual boost pressure and actual air inflow;
the model quantity signal values comprise at least: a desired torque and a desired boost pressure.
Optionally, the first preset condition includes:
the rotating speed of the engine is within a preset rotating speed interval; and the number of the first and second electrodes,
the opening degree of the accelerator pedal of the driver is greater than a preset opening degree; and the number of the first and second electrodes,
the actual boost pressure is within a first preset pressure interval; and the number of the first and second electrodes,
the actual air inflow is in a preset air inflow interval; and the number of the first and second groups is,
the desired torque is greater than a preset torque; and the number of the first and second electrodes,
the desired boost pressure is greater than a second preset pressure.
Optionally, the first activation module includes:
a first drive submodule for driving the throttle to a wide open position;
the second driving module is used for driving the pressure adjusting mechanism of the supercharger to a preset position;
and the third driving submodule is used for acquiring the load of the engine in real time and driving the air intake and exhaust phases to the position of the maximum air charging efficiency under the corresponding load according to the load of the engine.
Optionally, the supercharger pressure adjustment mechanism comprises an exhaust gas bypass valve type supercharger and a variable cross-section type supercharger;
the second drive submodule includes:
a first drive subunit for driving a bypass valve of an exhaust gas bypass valve type supercharger to a fully closed position;
and the second driving subunit is used for driving the nozzle ring of the variable-section supercharger to the minimum flow position.
Optionally, after the obtaining module, the engine torque transient response device further comprises:
the second activation module is used for activating a timer to start timing so as to control the duration of the activation of the torque transient response mode;
and the return module is used for resetting the timer to an initial value when the first signal value does not meet a first preset condition, and returning to the step of acquiring the first signal value representing the operating condition of the engine.
Optionally, after the first activation module, the engine torque transient response device further comprises:
the updating module is used for acquiring a signal value representing the running condition of the engine in real time when the timer does not finish timing so as to update the first signal value;
the continuous execution module is used for continuously executing the torque transient response mode when the updated first signal value meets a first preset condition;
the first quitting module is used for resetting the timer to an initial value and quitting the torque transient response mode when the updated first signal value does not meet the first preset condition;
and the second exit module is used for resetting the timer to the initial value when the timer finishes timing and exiting the torque transient response mode.
Fig. 4 is a schematic structural diagram of an electronic device in an embodiment of the present invention, and as shown in fig. 4, the present application further provides an electronic device, including:
a processor 41;
a memory 42 having instructions stored thereon, and a computer program stored on the memory and executable on the processor, which when executed by the processor 41, causes the apparatus to perform an engine torque transient response method.
The present application also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor 41 of an electronic device, enables the electronic device to perform a method of implementing an engine torque transient response as described.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The present invention provides a method, an apparatus, an electronic device and a readable storage medium for transient response of engine torque, which are described in detail above, and the present invention is described in the following by applying specific examples to explain the principle and the implementation of the present invention, and the description of the above embodiments is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. An engine torque transient response method, comprising:
obtaining a first signal value representing an engine operating condition, the first signal value comprising at least: the sensor measures a signal value and a model quantity signal value;
and activating a torque transient response mode when the first signal value meets a first preset condition.
2. The engine torque transient response method of claim 1,
the sensor measuring signal values comprises at least: the method comprises the following steps of (1) rotating speed of an engine, opening of an accelerator pedal of a driver, actual boost pressure and actual air inflow;
the model quantity signal values comprise at least: desired torque and desired boost pressure.
3. The engine torque transient response method of claim 2, wherein said first preset condition comprises:
the rotating speed of the engine is within a preset rotating speed interval; and the number of the first and second electrodes,
the opening degree of an accelerator pedal of the driver is greater than a preset opening degree; and the number of the first and second electrodes,
the actual boost pressure is within a first preset pressure interval; and the number of the first and second electrodes,
the actual air inflow is in a preset air inflow interval; and the number of the first and second electrodes,
the desired torque is greater than a preset torque; and the number of the first and second electrodes,
the desired boost pressure is greater than a second preset pressure.
4. The engine torque transient response method of claim 1, wherein said step of activating a torque transient response mode comprises:
driving a throttle to a fully open position; and the number of the first and second electrodes,
driving a pressure adjusting mechanism of the supercharger to a preset position; and the number of the first and second electrodes,
the method comprises the steps of obtaining the load of an engine, and driving an air intake and exhaust phase to a position with maximum inflation efficiency under the corresponding load according to the load of the engine.
5. The engine torque transient response method of claim 4, wherein the supercharger pressure adjusting mechanism comprises a wastegate type supercharger and a variable-area supercharger;
the step of driving the booster pressure adjustment mechanism to a preset position includes:
driving a bypass valve of the wastegate valve supercharger to a fully closed position; and the number of the first and second groups is,
driving a nozzle ring of the variable cross-section supercharger to a minimum flow position.
6. The engine torque transient response method of claim 1, further comprising, after said step of obtaining a first signal value indicative of an engine operating condition:
starting a timer by an activation timer to control the duration of the torque transient response mode activation;
and when the first signal value does not meet a first preset condition, resetting a timer to an initial value, and returning to the step of acquiring the first signal value representing the running condition of the engine.
7. The engine torque transient response method of claim 6, further comprising, after said step of activating a torque transient response mode when said first signal value satisfies a first preset condition:
when the timing of the timer is not finished, acquiring a signal value representing the running condition of the engine in real time so as to update the first signal value;
when the updated first signal value meets a first preset condition, continuing to execute the torque transient response mode;
when the updated first signal value does not meet the first preset condition, resetting the timer to an initial value, and exiting the torque transient response mode;
when the timer expires, resetting the timer to an initial value and exiting the torque transient response mode.
8. An engine torque transient response device, comprising:
an acquisition module configured to acquire a first signal value indicative of an operating condition of an engine, the first signal value comprising at least: the sensor measures a signal value and a model quantity signal value;
the first activating module is used for activating a torque transient response mode when the first signal value meets a first preset condition.
9. An electronic device, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, the computer program when executed by the processor implementing the steps of the engine torque transient response method of any one of claims 1 to 7.
10. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the engine torque transient response method as set forth in any one of claims 1 to 7.
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| CN202011372258.6A CN114576018A (en) | 2020-11-30 | 2020-11-30 | Engine torque transient response method and device, electronic equipment and storage medium |
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| DE102012014713A1 (en) * | 2012-07-25 | 2014-01-30 | Volkswagen Aktiengesellschaft | Method for operating an internal combustion engine |
| CN106605055A (en) * | 2014-09-03 | 2017-04-26 | 大陆汽车有限公司 | Method and device for actuating an exhaust gas recirculation valve of a supercharged internal combustion engine with exhaust gas recirculation |
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