CN115370495A - Torque filtering control method and device of engine and vehicle - Google Patents
Torque filtering control method and device of engine and vehicle 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
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0002—Controlling intake air
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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
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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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Abstract
The invention provides a torque filtering control method and device of an engine and a vehicle, wherein the method comprises the following steps: acquiring a torque demand related parameter and an intake air temperature of an engine of a vehicle when an acceleration signal of the vehicle is detected; the torque demand related parameter is related to a torque demand of the vehicle; and carrying out filter control on the acceleration torque of the engine according to the torque demand related parameter and the air inlet temperature. The invention can effectively solve the problems that the same acceleration torque filtering is used at different temperatures, the acceleration impact is easy to occur in a low-temperature environment, and the acceleration response is easy to slow in a high-temperature environment.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a torque filtering control method and device of an engine and a vehicle.
Background
At present, when a vehicle actually accelerates, an engine Electronic Control Unit (ECU) queries an accelerator pedal map table according to an accelerator opening signal of a driver, determines a driver required torque, and identifies an external torque demand through an automatic Transmission Control Unit (TCU), a vehicle body Electronic Stability Program (ESP), and the like, to determine a target required torque; and then, performing acceleration torque filtering control according to an acceleration torque filtering table by the engine electronic control unit at an acceleration initial stage according to the difference value of the target required torque and the actual torque so as to meet the dynamic response and driving smoothness of the vehicle in the acceleration process, wherein the acceleration torque filtering table is optimized, adjusted and determined in advance for the acceleration torque filtering in the whole vehicle calibration process.
However, the conventional acceleration torque filter control strategy is easy to have the problems of acceleration shock or slow acceleration response.
Disclosure of Invention
In view of this, the present invention provides a torque filtering control method and apparatus for an engine, and a vehicle, so as to solve the problem that an acceleration shock or a slow acceleration response is easily generated in the existing engine acceleration torque filtering control method.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a torque filtering control method of an engine, the method comprising:
acquiring a torque demand related parameter and an intake air temperature of an engine of a vehicle under the condition that an acceleration signal of the vehicle is detected;
and carrying out filter control on the acceleration torque of the engine according to the torque demand related parameter and the air inlet temperature.
Optionally, in the torque filter control method of an engine, the vehicle stores a correspondence relationship between a torque change rate and a torque demand-related parameter and an intake air temperature, in which the torque change rate and the intake air temperature are positively correlated in a case where the torque demand-related parameter is the same;
the filter control of the acceleration torque of the engine according to the torque demand-related parameter and the intake air temperature includes:
determining the torque change rate corresponding to the torque demand related parameter and the intake air temperature as the target torque change rate according to the corresponding relation;
and controlling the change of the acceleration torque output by the engine according to the target torque change rate.
Optionally, in the torque filter control method for an engine, the torque demand-related parameter includes an engine speed, a driver demand torque, a vehicle balance torque, and a gear in which a transmission of the vehicle is currently located.
Optionally, in the torque filtering control method for the engine, the correspondence includes a first correspondence between an engine speed and a temperature interval and a torque filter table, and the torque filter table establishes a second correspondence between a torque change rate and a torque difference and a gear of a transmission; the torque difference is a difference between the driver demand torque and the vehicle balance torque;
determining the torque change rate corresponding to the torque demand related parameter and the intake air temperature as the target torque change rate according to the corresponding relationship, including:
determining a temperature interval to which the intake air temperature belongs;
determining a target torque filter table according to the engine speed, the temperature interval and the first corresponding relation;
determining the torque difference value according to the driver required torque and the vehicle balance torque;
and determining the target torque change rate according to the torque difference value, the current gear of the gearbox of the vehicle and the target torque filter table.
Another object of the present invention is to provide a torque filter control device for an engine, wherein the device comprises:
the device comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring a torque demand related parameter and the air inlet temperature of an engine of a vehicle under the condition that an acceleration signal of the vehicle is detected;
and the control module is used for carrying out filtering control on the acceleration torque of the engine according to the torque demand related parameter and the air inlet temperature.
Alternatively, in the torque filter control device for an engine, the vehicle stores a correspondence relationship between a torque change rate and a torque demand-related parameter and an intake air temperature, in which the torque change rate and the intake air temperature are positively correlated in a case where the torque demand-related parameter is the same;
the first control module includes:
the determining unit is used for determining the torque change rate corresponding to the torque demand related parameter and the intake air temperature as a target torque change rate according to the corresponding relation;
and the control unit is used for controlling the change of the acceleration torque output by the engine according to the target torque change rate.
Optionally, in the torque filter control device for an engine, the torque demand-related parameter includes an engine speed, a driver demand torque, a vehicle balance torque, and a gear in which a transmission of the vehicle is currently located; the corresponding relation comprises a first corresponding relation among the rotating speed of the engine, a temperature interval and a torque filter table, and a second corresponding relation among the torque change rate, the torque difference value and the gear of the gearbox is established in the torque filter table; the torque difference is a difference between the driver demand torque and the vehicle balance torque;
the determination unit includes:
the first determining subunit is used for determining a temperature interval to which the intake air temperature belongs;
the second determining subunit is used for determining a target torque filter table according to the engine rotating speed, the temperature interval and the first corresponding relation;
a third determining subunit, configured to determine the torque difference value according to the driver required torque and the vehicle balance torque;
and the fourth determining subunit is used for determining the target torque change rate according to the torque difference value, the current gear of the gearbox of the vehicle and the target torque filter table.
Optionally, the apparatus further comprises:
and the second control module is used for stopping filtering control of the acceleration torque of the engine under the condition that the acceleration signal of the vehicle is not detected.
Compared with the prior art, the torque filtering control method and the torque filtering control device for the engine have the following advantages:
acquiring a torque demand related parameter and an intake air temperature of an engine of a vehicle under the condition that an acceleration signal of the vehicle is detected; the torque demand related parameter is related to a torque demand; and carrying out filter control on the acceleration torque of the engine according to the torque demand related parameter and the air inlet temperature. Because the change of the temperature can change the air density, the air inflow of oxygen fluctuates, and the torque response rate of the engine is further influenced, so that under the condition that an acceleration signal of a vehicle is detected, a torque demand related parameter related to the torque demand and the air inflow temperature of the engine are obtained, then the torque demand related parameter is combined with the air inflow temperature, the acceleration torque of the engine is subjected to filtering control together, and the problems that the same acceleration torque is used for filtering at different temperatures, acceleration impact easily occurs in a low-temperature environment, and the acceleration response is slow easily occur in a high-temperature environment can be effectively solved.
It is a further object of the present invention to provide a storage medium having a plurality of instructions stored thereon, wherein the instructions are adapted to be loaded by a processor and to perform the method of torque filtering control of an engine as described above.
Another objective of the present invention is to provide an electronic device, comprising:
a processor adapted to implement instructions; and
a storage medium adapted to store a plurality of instructions adapted to be loaded by a processor and to perform a method of torque filtering control of an engine as described above.
It is a further object of the invention to propose a vehicle comprising an engine, wherein the vehicle comprises a torque filter control device of the engine as described above.
The storage medium, the electronic device and the vehicle have the same advantages as the torque filtering control method and device of the engine compared with the prior art, and are not described again.
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The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic flow chart illustrating a method for controlling torque filtering of an engine according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a torque filter control device of an engine according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
Referring to fig. 1, a schematic flow chart of a torque filtering control method for an engine according to an embodiment of the present invention is shown, where the method includes steps S100 to S200.
The control method provided by the embodiment of the invention is particularly applied to an electronic control unit of a vehicle engine. The engine is a fuel engine, and specifically can be a diesel engine, a gasoline engine and the like.
Step S100: acquiring a torque demand related parameter and an intake air temperature of an engine of a vehicle when an acceleration signal of the vehicle is detected; the torque demand related parameter is related to a torque demand.
In step S100, the acceleration signal refers to a state signal in which the torque currently output by the engine is smaller than the target torque, that is, a state signal in which the vehicle is actively controlled by the driver to accelerate, and specifically, is triggered by the driver stepping on the accelerator pedal to increase the opening degree of the accelerator pedal. In practical application, the detection of the acceleration signal is performed once in each signal processing period, that is, when the torque state of the engine is changed into the acceleration state in one signal processing period, the acceleration signal is determined to be detected; the information processing period may be 10ms.
In the step S100, the torque demand related parameters are parameters related to the torque demand, including parameters affecting the torque output performance of the engine and parameters requiring the output torque of the engine.
Specifically, the torque demand related parameters include an engine speed, a driver demand torque, a vehicle balance torque and a gear of a transmission of the vehicle; the vehicle balance torque is torque required for overcoming the inertia of the whole vehicle and various loads, and is obtained by automatically calculating by an ECU according to the actual condition of the whole vehicle. The engine speed and the current gear of the vehicle gearbox affect the torque output performance of the engine, and the driver required torque and the vehicle balance torque reflect the torque required to be output by the engine.
In the above step S100, the intake air temperature, i.e., the temperature of the air entering the engine, may be detected by a temperature sensor at the air intake port.
Step S200: and carrying out filter control on the acceleration torque of the engine according to the torque demand related parameter and the air inlet temperature.
In step S200, since the conventional acceleration torque filter control strategy does not consider the intake air temperature, the same torque filter is used regardless of the normal temperature, the high temperature, and the low temperature. Therefore, torque filtering optimized and completed in a normal temperature state is performed in a high-temperature area, and the problem of slow initial acceleration response can occur due to the influence of air density, and otherwise, the phenomenon of impact during acceleration can occur in the low-temperature area. In the embodiment of the invention, the acceleration torque of the engine is subjected to filtering control according to the torque demand related parameters and the air inlet temperature, so that the acceleration torque filtering of the engine can be matched with different ambient temperatures, namely the torque filtering of the engine is corrected according to the air inlet temperature, the acceleration torque filtering control based on different air inlet temperatures is realized, and the phenomena of acceleration impact in a low-temperature environment and slow acceleration response in a high-temperature environment caused by air density change are avoided.
Compared with the prior art, the vehicle control method has the following advantages:
acquiring a torque demand related parameter and an intake air temperature of an engine of a vehicle when an acceleration signal of the vehicle is detected; the torque demand related parameter is related to a torque demand; and carrying out filter control on the acceleration torque of the engine according to the torque demand related parameter and the air inlet temperature. Because the change of the temperature can change the air density, the air inflow of oxygen fluctuates, and the torque response rate of the engine is further influenced, so that under the condition that an acceleration signal of a vehicle is detected, a torque demand related parameter related to the torque demand and the air inflow temperature of the engine are obtained, then the torque demand related parameter is combined with the air inflow temperature, the acceleration torque of the engine is subjected to filtering control together, and the problems that the same acceleration torque is used for filtering at different temperatures, acceleration impact easily occurs in a low-temperature environment, and the acceleration response is slow easily occur in a high-temperature environment can be effectively solved.
Alternatively, in one embodiment, the vehicle stores a correspondence relationship between a torque change rate and a torque demand-related parameter and an intake air temperature, in which the torque change rate and the intake air temperature are positively correlated when the torque demand-related parameters are the same; the step S200 includes steps S201 to S202.
In this embodiment, the correspondence relationship expresses the torque change rate of the vehicle at different torque demand related parameters and intake air temperatures, and is obtained by calibrating the vehicle in advance in the environment of different torque demand related parameters and intake air temperatures under the condition that both the power response of the engine and the driving smoothness of the vehicle can meet the design requirements.
If the same acceleration torque filtering control is performed in different temperature environments, the air density is high in the low-temperature environment, so that the power response is fast, the torque rise in unit time is too large, the vehicle is impacted, and the air density is low in the high-temperature environment, so that the power response is slow, and the phenomenon of incapability of acceleration is caused. In the above correspondence, under the condition that the torque demand related parameters are the same, the torque change rate is positively correlated with the intake air temperature, that is, under the condition that the torque demand related parameters are the same, the higher the intake air temperature is, the larger the torque change rate is, and the lower the intake air temperature is, the smaller the torque change rate is, so that the deviation of the intake air amount caused by the change of the air density is compensated, the dynamic response of the engine is ensured to be stable, and the condition that the dynamic response of the engine fluctuates is avoided.
Step S201: and determining the torque change rate corresponding to the torque demand related parameter and the intake air temperature as a target torque change rate according to the corresponding relation.
In step S201, the correspondence relationship expresses the torque change rate of the vehicle corresponding to different torque demand related parameters and intake air temperatures, and when the torque demand related parameters and the intake air temperatures are obtained, the corresponding torque change rate, that is, the target torque change rate, can be obtained according to the correspondence relationship.
Step S202: and controlling the change of the acceleration torque output by the engine according to the target torque change rate.
In the step S202, since the corresponding relationship is obtained by calibrating the vehicle in advance under the environment of different torque demand related parameters and intake air temperature, under the condition that both the power response of the engine and the driving smoothness of the vehicle can meet the design requirements; therefore, the target torque change rate is obtained by combining the acquired torque demand related parameters and the intake air temperature with the corresponding relation, and the change of the acceleration torque output by the engine is controlled, so that smooth power response and vehicle acceleration effect can be realized.
In the above embodiment, by determining in advance the correspondence relationship between the torque change rate stored in the vehicle and the torque demand-related parameter and the intake air temperature, after the torque demand-related parameter and the intake air temperature are obtained, the torque change rate that achieves smooth power response and vehicle acceleration effect can be determined quickly.
Optionally, in a specific embodiment, the torque demand related parameter includes an engine speed, a driver demand torque, a vehicle balance torque, and a current gear of a transmission of the vehicle, the correspondence includes a first correspondence between the engine speed and a temperature range, and a torque filter table, and the torque filter table establishes a second correspondence between a torque change rate and a torque difference, and between the gear of the transmission; the torque difference is a difference between the driver required torque and the vehicle balance torque, and the step S201 includes steps S211 to S214.
In the embodiment of the invention, under different engine speeds and air inlet temperature intervals, the torque difference value between the gear where the gearbox is located and the torque required by the driver and the vehicle balance torque is changed in advance, the torque change rate which enables the power response of the engine and the driving smoothness of the vehicle to meet the design requirement is calibrated, the second corresponding relation is determined, the first corresponding relation can be further determined, and then a plurality of torque filter tables respectively matched with the corresponding engine speeds and air inlet temperature intervals are obtained by changing the engine speeds and the air inlet temperature intervals, so that the first corresponding relation is determined.
Step S211: and determining the temperature interval to which the intake air temperature belongs.
In step S211, it is determined that the current intake air temperature is within the target temperature range among the plurality of temperature ranges in the first correspondence relationship, that is, the temperature range.
Step S212: and determining a target torque filter table according to the engine speed, the temperature interval and the first corresponding relation.
In step S212, since the first corresponding relationship expresses the torque filter table corresponding to and matching with different engine speeds and intake air temperature intervals, the corresponding torque filter table, i.e., the target torque filter table, can be determined by combining the first corresponding relationship with the obtained engine speed and the temperature interval determined in step S211.
Step S213: and determining the torque difference value according to the driver required torque and the vehicle balance torque.
In step S213, the torque difference may be calculated by detecting the opening of the accelerator pedal of the vehicle to determine the torque required by the driver, and subtracting the vehicle balance torque automatically calculated by the ECU according to the actual condition of the entire vehicle.
Step S214: and determining the target torque change rate according to the torque difference value, the current gear of the gearbox of the vehicle and the target torque filter table.
In the step S214, since each torque filter table establishes the second corresponding relationship between the torque change rate and the torque difference and the gear of the transmission, after the torque difference and the current gear of the transmission of the vehicle are determined, the torque change rate, i.e., the target torque change rate, at which the power response of the engine and the driving smoothness of the vehicle can both meet the torque change rate of the design requirement can be obtained by querying.
Alternatively, in a specific embodiment, in the first corresponding relationship, the engine speed may be divided into sections according to specific characteristics of the engine, and the corresponding torque filter tables of the engine speeds belonging to the same speed section are the same, that is, the first corresponding relationship expresses the corresponding relationship among the speed section, the temperature section and the torque filter table.
In a specific embodiment, when querying the torque filter table, it is necessary to determine the current engine speed in the speed interval, and then determine the target torque filter table according to the corresponding relationship between the speed interval, the temperature interval and the torque filter table.
Optionally, dividing the engine speed into a first speed interval and a second speed interval, wherein the engine speed in the first speed interval is less than or equal to 2500rpm, and the engine speed in the second speed interval is greater than 2500rpm; the method comprises the following steps of dividing the air inlet temperature into a first temperature interval, a second temperature interval and a third temperature interval, wherein the air inlet temperature in the first temperature interval is less than 30 ℃, the air inlet temperature in the second temperature interval is greater than or equal to 30 ℃, the air inlet temperature is less than or equal to 50 ℃, and the air inlet temperature in the third temperature interval is greater than 50 ℃.
For example, the torque filter table corresponding to the first rotation speed section and the first temperature section is shown in table 1, the torque filter table corresponding to the first rotation speed section and the second temperature section is shown in table 2, the torque filter table corresponding to the first rotation speed section and the third temperature section is shown in table 3, the torque filter table corresponding to the second rotation speed section and the first temperature section is shown in table 4, the torque filter table corresponding to the second rotation speed section and the second temperature section is shown in table 5, and the torque filter table corresponding to the second rotation speed section and the third temperature section is shown in table 6.
TABLE 1
TABLE 2
TABLE 3
TABLE 4
TABLE 5
TABLE 6
In the following, table 1 and Table 2 are given as examples for comparison and further explanation, in Table 1, the intake air temperature is less than 30 ℃ and usually low temperature environment, and in Table 2, the intake air temperature is 30 ℃ or more and 50 ℃ or less and usually normal temperature environment. Under the condition that the same gear has the same torque demand, for example, the gear is 3 and the torque difference value is 50, the torque rise in table 1 is 3.575Nm/10ms, and the torque rise in table 2 is 7.862Nm/10ms, because the air density is high in a low-temperature environment, the power response is fast, and if the torque rise in unit time is too large at this time, the vehicle is impacted, so the value of the corresponding z-axis in table 2 is relatively small; if the acceleration torque filtering at different environmental temperatures is controlled by using the table 1, the problem of slow torque response at high temperature is caused.
Optionally, in an implementation manner, the method for controlling torque filtering of an engine according to an embodiment of the present invention further includes step S300.
Step S300: when the acceleration signal of the vehicle is not detected, the filter control of the acceleration torque of the engine is stopped.
In the step S300, when the acceleration signal is not detected, it is described that the torque currently output from the engine reaches the target torque, and the vehicle is changed from the acceleration state to another state such as idling, creeping, fuel cut, fuel supply resumption, or deceleration, and at this time, the engine stops the filter control of the acceleration torque of the engine without increasing the output torque thereof.
Another objective of the present invention is to provide a torque filter control device for an engine, wherein, referring to fig. 2, fig. 2 shows a schematic structural diagram of a torque filter control device for an engine according to an embodiment of the present invention, the device includes:
an obtaining module 21, configured to obtain a torque demand related parameter and an intake air temperature of an engine of a vehicle when an acceleration signal of the vehicle is detected;
the first control module 22 is configured to perform filtering control on the acceleration torque of the engine according to the torque demand-related parameter and the intake air temperature.
In the device according to the embodiment of the invention, under the condition that an acceleration signal of a vehicle is detected by an obtaining module 21, a torque demand related parameter related to a torque demand and an air inlet temperature of an engine of the vehicle are obtained, and then a first control module 22 carries out filtering control on the acceleration torque of the engine according to the torque demand related parameter and the air inlet temperature. Because the change of the temperature can change the air density, the air inflow of oxygen fluctuates, and the torque response rate of the engine is further influenced, so that under the condition that an acceleration signal of a vehicle is detected, a torque demand related parameter related to the torque demand and the air inflow temperature of the engine are obtained, then the torque demand related parameter is combined with the air inflow temperature, the acceleration torque of the engine is subjected to filtering control together, and the problems that the same acceleration torque is used for filtering at different temperatures, acceleration impact easily occurs in a low-temperature environment, and the acceleration response is slow easily occur in a high-temperature environment can be effectively solved.
Alternatively, in the torque filter control device for an engine, the vehicle stores a correspondence relationship between a torque change rate and a torque demand-related parameter and an intake air temperature, in which the torque change rate and the intake air temperature are positively correlated in a case where the torque demand-related parameter is the same;
the first control module 22 includes:
the determining unit is used for determining the torque change rate corresponding to the torque demand related parameter and the intake air temperature as a target torque change rate according to the corresponding relation;
and a control unit for controlling the change of the acceleration torque output by the engine according to the target torque change rate.
Optionally, in the torque filter control device for an engine, the torque demand-related parameter includes an engine speed, a driver demand torque, a vehicle balance torque, and a gear in which a transmission of the vehicle is currently located; the corresponding relation comprises a first corresponding relation among the engine rotating speed, a temperature interval and a torque filter table, and the torque filter table establishes a second corresponding relation among the torque change rate, the torque difference value and the gear of the gearbox; the torque difference is a difference between the driver demand torque and the vehicle balance torque;
the determination unit includes:
the first determining subunit is used for determining a temperature interval to which the intake air temperature belongs;
the second determining subunit is used for determining a target torque filter table according to the engine rotating speed, the temperature interval and the first corresponding relation;
a third determining subunit, configured to determine the torque difference value according to the driver required torque and the vehicle balance torque;
and the fourth determining subunit is used for determining the target torque change rate according to the torque difference value, the current gear of the transmission of the vehicle and the target torque filter table.
Optionally, the apparatus further comprises:
and the second control module is used for stopping filtering control on the acceleration torque of the engine under the condition that the acceleration signal of the vehicle is not detected.
It is a further object of the present invention to provide a storage medium having a plurality of instructions stored thereon, wherein the instructions are adapted to be loaded by a processor and to perform a method of torque filtering control of an engine as described above.
It is still another object of the present invention to provide an electronic device, which includes:
a processor adapted to implement instructions; and
a storage medium adapted to store a plurality of instructions adapted to be loaded by a processor and to perform a method of torque filtering control of an engine as described above.
It is a further object of the invention to propose a vehicle comprising an engine, wherein the vehicle further comprises a torque filter control device of the engine as described above.
The storage medium, the electronic device and the vehicle have the same advantages as the torque filtering control method and device of the engine compared with the prior art, and are not described again.
In summary, the present invention provides a vehicle control method, a device, a storage medium, an electronic device and a vehicle, wherein a torque demand related parameter related to a torque demand and an intake air temperature of an engine of the vehicle are obtained when an acceleration signal of the vehicle is detected, and then an acceleration torque of the engine is filter-controlled according to the torque demand related parameter and the intake air temperature. Because the change of the temperature can change the air density, the air inflow of oxygen fluctuates, and the torque response rate of the engine is further influenced, so that under the condition that an acceleration signal of a vehicle is detected, a torque demand related parameter related to the torque demand and the air inflow temperature of the engine are obtained, then the torque demand related parameter is combined with the air inflow temperature, the acceleration torque of the engine is subjected to filtering control together, and the problems that the same acceleration torque is used for filtering at different temperatures, acceleration impact easily occurs in a low-temperature environment, and the acceleration response is slow easily occur in a high-temperature environment can be effectively solved.
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 so forth) having computer-usable program code embodied therein.
In a typical configuration, the computer device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory. The memory may include forms of volatile memory in a computer readable medium, random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium. Computer-readable media, including both permanent and non-permanent, removable and non-removable media, may implement the information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include non-transitory computer readable media (fransitory media), such as modulated data signals and carrier waves.
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 "include", "including" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or terminal device including a series of elements includes not only those elements but also other elements not explicitly listed or inherent to such process, method, article, or terminal device. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or terminal device that comprises the element.
The torque filtering control method, device, storage medium, electronic device and vehicle of the engine provided by the invention are described in detail, and the principle and the implementation mode of the invention are explained by applying specific examples, and the description of the embodiments is only used for helping to understand the method and the core idea of the 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. A torque filtering control method of an engine, the method comprising:
acquiring a torque demand related parameter and an intake air temperature of an engine of a vehicle under the condition that an acceleration signal of the vehicle is detected; the torque demand related parameter is related to a torque demand of the vehicle;
and carrying out filter control on the acceleration torque of the engine according to the torque demand related parameter and the air inlet temperature.
2. The torque filter control method of an engine according to claim 1, characterized in that the vehicle stores a correspondence relationship between a torque change rate and a torque demand-related parameter and an intake air temperature in which the torque change rate and the intake air temperature are positively correlated with the same torque demand-related parameter;
the filter control of the acceleration torque of the engine according to the torque demand-related parameter and the intake air temperature includes:
determining the torque change rate corresponding to the torque demand related parameter and the intake air temperature as a target torque change rate according to the corresponding relation;
and controlling the change of the acceleration torque output by the engine according to the target torque change rate.
3. The torque filtering control method of an engine according to claim 2, characterized in that the torque demand related parameters include engine speed, driver demanded torque, vehicle balance torque and gear in which a gearbox of the vehicle is currently located.
4. The torque filter control method of the engine according to claim 3, wherein the correspondence relationship comprises a first correspondence relationship between an engine speed, a temperature range and a torque filter table, and the torque filter table establishes a second correspondence relationship between a torque change rate and a torque difference value and a gear of a transmission; the torque difference is a difference between the driver demand torque and the vehicle balance torque;
determining the torque change rate corresponding to the torque demand related parameter and the intake air temperature as the target torque change rate according to the corresponding relationship, including:
determining a temperature interval to which the intake air temperature belongs;
determining a target torque filter table according to the engine speed, the temperature interval and the first corresponding relation;
determining the torque difference value according to the driver required torque and the vehicle balance torque;
and determining the target torque change rate according to the torque difference value, the current gear of the gearbox of the vehicle and the target torque filter table.
5. The torque filter control method of an engine according to claim 1, characterized by further comprising:
when the acceleration signal of the vehicle is not detected, the filter control of the acceleration torque of the engine is stopped.
6. A torque filter control apparatus of an engine, characterized by comprising:
the device comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring torque demand related parameters and the air inlet temperature of an engine of a vehicle under the condition that an acceleration signal of the vehicle is detected;
and the first control module is used for carrying out filtering control on the acceleration torque of the engine according to the torque demand related parameter and the air inlet temperature.
7. The torque filter control device of an engine according to claim 6, characterized in that the vehicle stores a correspondence relationship between a torque change rate and a torque demand-related parameter and an intake air temperature in which the torque change rate and the intake air temperature are positively correlated with each other in a case where the torque demand-related parameter is the same;
the first control module includes:
the determining unit is used for determining the torque change rate corresponding to the torque demand related parameter and the intake air temperature as a target torque change rate according to the corresponding relation;
and a control unit for controlling the change of the acceleration torque output by the engine according to the target torque change rate.
8. The torque filter control device of an engine according to claim 7, wherein the torque demand-related parameters include an engine speed, a driver demand torque, a vehicle balance torque, and a gear in which a transmission of the vehicle is currently located; the corresponding relation comprises a first corresponding relation among the engine rotating speed, a temperature interval and a torque filter table, and the torque filter table establishes a second corresponding relation among the torque change rate, the torque difference value and the gear of the gearbox; the torque difference is a difference between the driver demand torque and the vehicle balance torque;
the determination unit includes:
the first determining subunit is used for determining a temperature interval to which the intake air temperature belongs;
the second determining subunit is used for determining a target torque filter table according to the engine rotating speed, the temperature interval and the first corresponding relation;
a third determining subunit, configured to determine the torque difference value according to the driver required torque and the vehicle balance torque;
and the fourth determining subunit is used for determining the target torque change rate according to the torque difference value, the current gear of the gearbox of the vehicle and the target torque filter table.
9. The torque filter control device of an engine according to claim 6, characterized by further comprising:
and the second control module is used for stopping filtering control of the acceleration torque of the engine under the condition that the acceleration signal of the vehicle is not detected.
10. A vehicle including an engine, characterized by further comprising a torque filter control device of the engine according to any one of claims 6 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110536823.6A CN115370495A (en) | 2021-05-17 | 2021-05-17 | Torque filtering control method and device of engine and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110536823.6A CN115370495A (en) | 2021-05-17 | 2021-05-17 | Torque filtering control method and device of engine and vehicle |
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| CN115370495A true CN115370495A (en) | 2022-11-22 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050051133A1 (en) * | 2003-09-05 | 2005-03-10 | Per Persson | Acceleration pedal interpretation when engine torque is limited |
| US20070254772A1 (en) * | 2006-04-27 | 2007-11-01 | Hitachi, Ltd. | Engine Controller |
| CN102235251A (en) * | 2010-04-20 | 2011-11-09 | 通用汽车环球科技运作有限责任公司 | Driver torque request systems and methods |
| DE102010017406A1 (en) * | 2010-06-17 | 2011-12-22 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Method for operating a drive train of a motor vehicle |
| CN112406850A (en) * | 2019-08-22 | 2021-02-26 | 比亚迪股份有限公司 | Hybrid vehicle, control method and control system thereof, and storage medium |
| CN112664338A (en) * | 2020-12-03 | 2021-04-16 | 浙江吉利控股集团有限公司 | Method, system and computer storage medium for eliminating engine shake |
-
2021
- 2021-05-17 CN CN202110536823.6A patent/CN115370495A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050051133A1 (en) * | 2003-09-05 | 2005-03-10 | Per Persson | Acceleration pedal interpretation when engine torque is limited |
| US20070254772A1 (en) * | 2006-04-27 | 2007-11-01 | Hitachi, Ltd. | Engine Controller |
| CN102235251A (en) * | 2010-04-20 | 2011-11-09 | 通用汽车环球科技运作有限责任公司 | Driver torque request systems and methods |
| DE102010017406A1 (en) * | 2010-06-17 | 2011-12-22 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Method for operating a drive train of a motor vehicle |
| CN112406850A (en) * | 2019-08-22 | 2021-02-26 | 比亚迪股份有限公司 | Hybrid vehicle, control method and control system thereof, and storage medium |
| CN112664338A (en) * | 2020-12-03 | 2021-04-16 | 浙江吉利控股集团有限公司 | Method, system and computer storage medium for eliminating engine shake |
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