CN114575994B - Noise control method and device for electric control turbocharger - Google Patents
Noise control method and device for electric control turbocharger Download PDFInfo
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- CN114575994B CN114575994B CN202011373329.4A CN202011373329A CN114575994B CN 114575994 B CN114575994 B CN 114575994B CN 202011373329 A CN202011373329 A CN 202011373329A CN 114575994 B CN114575994 B CN 114575994B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
- F02B37/183—Arrangements of bypass valves or actuators therefor
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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
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
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Abstract
The application discloses an electric control turbocharger noise control method and device, wherein the method comprises the following steps: acquiring gear information and movement condition information; if the current gear is a non-power gear and the movement working condition is an acceleration working condition, limiting the required torque value of the electric control turbine to be smaller than a first threshold value through a first electric control turbine control strategy so as to ensure that a bypass valve of the supercharger is in an open state; the first threshold value is a torque value when the electric control turbine does not use the supercharger to boost. Therefore, the bypass valve of the supercharger is kept in an open state by adjusting the torque requirement of the electric control turbine in the non-power gear, so that noise generated when the bypass valve is opened again after the bypass valve is closed by the supercharger is avoided, and the noise is fundamentally avoided under the condition that extra cost is not required to be increased.
Description
Technical Field
The application relates to the field of turbine control, in particular to a noise control method and device of an electric control turbocharger.
Background
In an electronically controlled turbocharger, the operating state of the turbocharger valve stem is controlled by the torque demand of the electronically controlled turbine. When the accelerator is in an acceleration working condition of the non-power gear, the accelerator opening is large, the corresponding torque requirement is also large, at the moment, an execution motor in the supercharger can push a supercharging valve rod to close the bypass valve until the rotating speed of the engine reaches the speed limiting rotating speed, at the moment, the torque requirement of the electric control turbine is reduced, and the supercharging valve rod in the supercharger can rapidly open the bypass valve.
Because the temperature of the bypass valve rocker arm and the end surface of the bushing is very high when the supercharger works, the bypass valve rocker arm and the end surface of the bushing are influenced by thermal expansion and contraction, and a certain gap is reserved between the bypass valve rocker arm and the end surface of the bushing in order to prevent the bypass valve rocker arm and the bushing from being mutually extruded when the bypass valve rocker arm and the bushing are heated and expanded. When the bypass valve is rapidly opened by the supercharging rod, the rocker arm of the bypass valve and the bush rotate relatively, and noise is easy to generate due to the existence of a gap between the rocker arm of the bypass valve and the bush, so that driving experience is influenced.
At present, in order to solve the problem of noise, noise is generally improved by adding an elastic pad to a gap to compensate, but the elastic pad is worn at high temperature, so that the elastic pad needs to be replaced frequently, and the cost is high. Moreover, the elastic pad can only reduce the noise generation to a certain extent, and cannot completely solve the noise generation.
Disclosure of Invention
In order to solve the technical problem, the application provides a noise control method and device of an electric control turbocharger, which are used for solving the noise between a rocker arm and a bushing section under the acceleration working condition of a non-power gear.
In order to achieve the above object, the technical solution provided in the embodiments of the present application is as follows:
the embodiment of the application provides a noise control method of an electric control turbocharger, which comprises the following steps:
acquiring gear information and movement condition information;
if the current gear is a non-power gear and the movement working condition is an acceleration working condition, limiting the required torque value of the electric control turbine to be smaller than a first threshold value through a first electric control turbine control strategy so as to ensure that a bypass valve of a supercharger of the electric control turbine is in an open state;
the first threshold value is a required torque value when the electric control turbine does not use the supercharger to carry out supercharging.
Optionally, the accelerator opening is positively correlated with the required torque value, and the first electronically controlled turbine control strategy includes:
and limiting the required torque value corresponding to the same accelerator opening degree so as to enable the required torque value to be smaller than the control strategy of the first threshold value.
Optionally, the limiting the required torque value corresponding to the same accelerator opening includes:
and reducing the required torque value corresponding to the same accelerator opening by about 75 percent.
Optionally, the acceleration condition includes:
and the throttle opening is larger than the movement working condition of the first throttle opening threshold.
Optionally, the method further comprises:
if the current gear is a power gear and the movement working condition is an acceleration working condition, a second electric control turbine control strategy is called to control the supercharger; the second electronically controlled turbine control strategy is a control strategy that does not limit the required torque value of the electronically controlled turbine.
Optionally, the method further comprises:
acquiring an engine starting signal;
the step information and the movement condition information are obtained, including:
and when the engine starting signal indicates that the engine is started, gear information and movement condition information are acquired.
The embodiment of the application also provides an electric control turbocharger noise control device, which comprises:
the acquisition module is used for acquiring gear information and movement condition information;
the electronic control unit ECU is used for limiting the required torque value of the electric control turbine to be smaller than a first threshold value through a first electric control turbine control strategy if the current gear is a non-power gear and the movement working condition is an acceleration working condition so as to ensure that a bypass valve of a supercharger of the electric control turbine is in an open state;
the first threshold value is a torque value when the electric control turbine does not use the supercharger to carry out supercharging.
Optionally, the accelerator opening is positively correlated with the required torque value, and the ECU is specifically configured to:
and limiting the required torque value corresponding to the same accelerator opening degree so as to enable the required torque value to be smaller than the control strategy of the first threshold value.
Optionally, the limiting the required torque value corresponding to the same accelerator opening includes:
and reducing the required torque value corresponding to the same accelerator opening by about 75 percent.
Optionally, the ECU is further configured to:
if the current gear is a power gear and the movement working condition is an acceleration working condition, a second electric control turbine control strategy is called to control the supercharger; the second electronically controlled turbine control strategy is a control strategy that does not limit the required torque value of the electronically controlled turbine.
According to the technical scheme, the application has the following beneficial effects:
the embodiment of the application provides a method and a device for controlling noise of an electric control turbocharger, wherein the method comprises the following steps: acquiring gear information and movement condition information; if the current gear is a non-power gear and the movement working condition is an acceleration working condition, limiting the required torque value of the electric control turbine to be smaller than a first threshold value through a first electric control turbine control strategy so as to ensure that a bypass valve of the supercharger is in an open state; the first threshold value is a torque value when the electric control turbine does not use the supercharger to boost. Therefore, in the present application, the torque requirement of the electric control turbine is actually adjusted during the non-power gear, so that the bypass valve of the supercharger is kept in an open state, and noise generated when the bypass valve is opened again after the bypass valve is closed by the supercharger is avoided, and further, the noise is fundamentally avoided under the condition that no additional cost is required to be added.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an electronically controlled turbocharger according to an embodiment of the present application;
fig. 2 is a schematic diagram of a generating position of noise of an electronically controlled turbocharger according to an embodiment of the present application;
fig. 3 is a schematic diagram of a noise generating process of an electrically controlled turbocharger according to an embodiment of the present application;
fig. 4 is a schematic flow chart of a noise control method of an electronically controlled turbocharger according to an embodiment of the present application;
FIG. 5 is a specific value list of required torque values according to an embodiment of the present disclosure;
FIG. 6 is a schematic diagram of another method for controlling noise of an electronically controlled turbocharger according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of an electrically controlled turbocharger noise control device according to an embodiment of the present application.
Detailed Description
In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures and detailed description are described in further detail below.
In order to better understand the solution provided by the embodiments of the present application, before describing the method provided by the embodiments of the present application, a scenario of application of the solution of the embodiments of the present application is described. Referring to fig. 1, a schematic structural diagram of an electrically controlled turbocharger according to an embodiment of the present application is provided. As shown in fig. 1, in an electronically controlled turbocharger, the operating state of the turbocharger valve stem is controlled by the torque demand of the electronically controlled turbine. When the accelerator is in an acceleration working condition of the non-power gear, the accelerator opening is large, the corresponding torque requirement is also large, at the moment, the motor in the supercharger can push the supercharging valve rod to close the bypass valve until the rotating speed of the engine reaches the speed limiting rotating speed, at the moment, the torque requirement of the electric control turbine is reduced, and the supercharging valve rod in the supercharger can rapidly open the bypass valve.
Because the temperature of the bypass valve rocker arm and the end surface of the bushing is very high when the supercharger works, the bypass valve rocker arm and the end surface of the bushing are influenced by thermal expansion and contraction, and a certain gap is reserved between the bypass valve rocker arm and the end surface of the bushing in order to prevent the bypass valve rocker arm and the bushing from being mutually extruded when the bypass valve rocker arm and the bushing are heated and expanded. Referring to fig. 2, a schematic diagram of a generating position of noise of an electrically controlled turbocharger according to an embodiment of the present application is shown. As shown in fig. 2, there is a gap between the bush and the rocker arm, and when the bypass valve is rapidly opened by the supercharging lever, the bypass valve rocker arm and the bush relatively rotate, and noise is easily generated due to the gap between the two, thereby affecting the driving experience. Referring to fig. 3, a schematic diagram of an electronically controlled turbocharger noise generation process according to an embodiment of the present application is provided. As shown in fig. 3, when the gear is a non-power gear, that is, the antifreeze rotation speed is low, the accelerator opening degree is suddenly increased, resulting in a sudden increase in torque demand, and when the torque demand increases to a certain value, the bypass valve is opened. When the rotational speed increases and the torque demand decreases to a certain extent, the bypass valve closes, thereby generating noise.
In order to solve the above-mentioned problems, an embodiment of the present application provides a method and an apparatus for controlling noise of an electronically controlled turbocharger, including: acquiring gear information and movement condition information; if the current gear is a non-power gear and the movement working condition is an acceleration working condition, limiting the required torque value of the electric control turbine to be smaller than a first threshold value through a first electric control turbine control strategy so as to ensure that a bypass valve of the supercharger is in an open state; the first threshold value is a torque value when the electric control turbine does not use the supercharger to boost. Therefore, in the present application, the torque requirement of the electric control turbine is actually adjusted during the non-power gear, so that the bypass valve of the supercharger is kept in an open state, and noise generated when the bypass valve is opened again after the bypass valve is closed by the supercharger is avoided, and further, the noise is fundamentally avoided under the condition that no additional cost is required to be added.
Next, a method for controlling noise of an electrically controlled turbocharger according to an embodiment of the present application will be specifically described with reference to the accompanying drawings.
Referring to fig. 4, a flow chart of a method for controlling noise of an electrically controlled turbocharger according to an embodiment of the present application is shown. As shown in fig. 4, the method for controlling noise of the electronically controlled turbocharger provided in the embodiment of the present application includes steps S401 to S402.
S401: and acquiring gear information and movement condition information.
S402: if the current gear is a non-power gear and the movement working condition is an acceleration working condition, limiting the required torque value of the electric control turbine to be smaller than a first threshold value through a first electric control turbine control strategy so as to ensure that a bypass valve of a supercharger of the electric control turbine is in an open state.
The first threshold is a torque value when the electronically controlled turbine is not using a supercharger for supercharging.
As a possible implementation manner, the movement condition in the embodiment of the present application may be determined according to the accelerator opening. When the throttle opening is larger than the first throttle opening threshold, judging that the current working condition is an acceleration working condition; and when the throttle opening is smaller than the first throttle opening threshold, judging that the current working condition is an idle working condition. In practical application, the first accelerator opening threshold in the embodiment of the present application may be adjusted according to an actual application scenario, which is not limited herein. In embodiments of the present application, the non-power gears may include a P-gear or an N-gear. Of course, the non-power gears in the embodiments of the present application may also include other vehicle gears with actual control effects similar to those of the P-gear and the N-gear.
In an embodiment of the present application, the method for controlling noise of an electronically controlled turbocharger further includes: an engine start signal is obtained. Acquiring gear information and movement condition information, including: and when the engine starting signal indicates that the engine is started, gear information and movement condition information are acquired. It can be appreciated that the method provided by the present application can only obtain effective gear information and movement condition information after the engine is started.
Next, a first electronically controlled turbine control strategy in an embodiment of the present application will be described in detail:
in order to make the required torque value smaller than the first threshold value in the embodiment of the present application to ensure that the bypass valve of the supercharger of the electronically controlled turbine is in an open state, it is necessary to reduce the required torque value in the embodiment of the present application by the first electronically controlled turbine control strategy.
It can be understood that in the application scenario of the embodiment of the present application, the accelerator opening and the required torque value are positively correlated. When the accelerator opening degree is increased, the required torque will generally become larger; the required torque will typically also be smaller when the accelerator opening is reduced. Thus, to avoid abrupt decreases in demand torque, resulting in a poor control experience for the user, as one possible implementation, the first electronically controlled turbine control strategy may include: and a control strategy for limiting the required torque value corresponding to the same accelerator opening so that the required torque value is smaller than a first threshold value. Therefore, under the condition that the required torque is smaller than the first threshold value, the relative size of the required torque can be controlled by a user through the opening degree of the accelerator, the sudden reduction of the required torque is avoided, and poor control experience is brought to the user.
In an embodiment of the present application, in order to ensure performance of the engine, the first threshold may be a maximum required torque value when the electronic control turbine does not use the supercharger to perform supercharging. In this way, the required torque value can be made as large as possible without opening the bypass valve, thereby ensuring that the engine can provide relatively good power. As an example, the required torque value corresponding to the same accelerator opening limit in the embodiment of the present application may be: the required torque value corresponding to the same accelerator opening is reduced by about 75%. At this time, the first threshold may be about 25% of the pre-reduction required torque value. Of course, the first threshold in the embodiments of the present application may also be adjusted according to actual application conditions, which is not limited herein.
As an example, the embodiment of the application provides a specific value taking manner of the required torque value in practical application. Referring to fig. 5, fig. 5 is a specific value list of required torque values provided in the embodiment of the present application. As shown in fig. 5, x is the engine speed, y is the accelerator opening, and the table content is the required torque value. In the first electronically controlled turbine control strategy, as a possible implementation, the value of the first threshold may be positively correlated with the rotational speed of the engine, for example: when the engine speed is 400r/min, the value of the first threshold value can be 28.8; when the engine speed is 750r/min, the value of the first threshold value can be 35.0.
Next, a second electronically controlled turbine control strategy provided by an embodiment of the present application is described:
under the acceleration working condition of the power gear, a gap exists between the bushing and the rocker arm, so that larger noise cannot be generated. This is because the load on the power stage is large and the engine speed is slow to rise, so that the motor of the supercharger is slow to open and close the bypass valve, and noise generated by the clearance between the bush and the rocker arm is small and can be ignored. Therefore, the method provided by the embodiment of the application may further include: if the current gear is a power gear and the movement working condition is an acceleration working condition, a second electric control turbine control strategy is called to control the supercharger; the second electronically controlled turbine control strategy is a control strategy that does not limit the required torque value of the electronically controlled turbine. Therefore, under the power gear acceleration working condition, the method provided by the embodiment of the application does not limit the magnitude of the required torque, can ensure sufficient driving power to the greatest extent, and can not generate obvious noise to reduce the driving experience of a user.
As one possible implementation, the power stage in the examples of the present application may include a D-stage or an R-stage. Of course, the power shift in the embodiments of the present application may also include other vehicle shift positions with actual control effects similar to D and R shift positions.
It should be noted that, in the method provided in the embodiment of the present application, if the engine is in the idle working condition, the idle working condition control strategy is invoked to control the electronic control turbocharger. There are many possible implementations of the control strategy of the electric turbocharger under idle conditions in the current technology, and these implementations are relatively mature, and those skilled in the art are familiar with this, and the present application will not be repeated here.
In order to better understand the solutions provided by the examples of the present application, a possible implementation of the technical solutions of the present application will be described in the whole with reference to the accompanying drawings:
referring to fig. 6, a schematic diagram of another method for controlling noise of an electronically controlled turbocharger according to an embodiment of the present application is provided. As shown in fig. 6, another method for controlling noise of an electronically controlled turbocharger according to an embodiment of the present application includes: and when the engine is in the acceleration working condition in the D gear/R gear, a second electric control turbine control strategy is called, and the magnitude of the required torque is not limited. And when the engine is in an acceleration working condition in the P gear/N gear, a first electric control turbine control strategy is called, and the required torque is limited to be smaller than a first threshold value.
In summary, the embodiment of the application provides a noise control method for an electric control turbocharger, which is capable of keeping a bypass valve of the turbocharger in an open state by adjusting a torque demand of an electric control turbine to be smaller than a first threshold value when the turbocharger is in a non-power gear, so as to avoid noise generated when the bypass valve is opened again after the bypass valve is closed, and further fundamentally avoid noise without increasing additional cost.
According to the above provided method for controlling the noise of the electric control turbocharger, the embodiment of the application also provides a device for controlling the noise of the electric control turbocharger.
Referring to fig. 7, the structure of an electrically controlled turbocharger noise control device according to an embodiment of the present application is shown.
As shown in fig. 7, the noise control device for an electronically controlled turbocharger provided in the embodiment of the present application includes:
the acquisition module 100 is used for acquiring gear information and movement condition information.
And the electronic control unit (ECU, electronic Control Unit) is used for limiting the required torque value of the electric control turbine to be smaller than a first threshold value through a first electric control turbine control strategy if the current gear is a non-power gear and the movement working condition is an acceleration working condition so as to ensure that a bypass valve of a supercharger of the electric control turbine is in an open state. The first threshold is a torque value when the electronically controlled turbine is not using a supercharger for supercharging.
As a possible implementation manner, in the embodiment of the present application, the accelerator opening is positively correlated with the required torque value, and the ECU is specifically configured to: and a control strategy for limiting the required torque value corresponding to the same accelerator opening so that the required torque value is smaller than a first threshold value.
As one example, limiting the required torque value corresponding to the same accelerator opening includes: the required torque value corresponding to the same accelerator opening is reduced by about 75%.
As one possible implementation manner, the acceleration conditions in the embodiment of the present application include: and the movement working condition that the throttle opening is larger than the first throttle opening threshold value.
In the embodiment of the application, the ECU is further configured to invoke a second electronic control turbine control strategy to control the supercharger if the current gear is a power gear and the motion condition is an acceleration condition; the second electronically controlled turbine control strategy is a control strategy that does not limit the required torque value of the electronically controlled turbine.
As one possible embodiment, the non-power gear includes a P gear or an N gear; the power range includes either D-range or R-range.
In summary, the embodiment of the application provides an electrically controlled turbocharger noise control device, which is configured to adjust a torque requirement of an electrically controlled turbine to be smaller than a first threshold value when in a non-power gear, so as to keep a bypass valve of a supercharger in an open state, thereby avoiding noise generated when the supercharger opens the bypass valve again after closing the bypass valve, and further fundamentally avoiding noise without increasing additional cost.
From the above description of embodiments, it will be apparent to those skilled in the art that all or part of the steps of the above described example methods may be implemented in software plus necessary general purpose hardware platforms. Based on such understanding, the technical solutions of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, a server, or a network communication device such as a media gateway, etc.) to perform the methods described in the embodiments or some parts of the embodiments of the present application.
It should be noted that, in the present description, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different manner from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the method disclosed in the embodiment, since it corresponds to the system disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the system part.
It should also be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus 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 apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A method of electronically controlled turbocharger noise control, the method comprising:
acquiring gear information and movement condition information;
if the current gear is a non-power gear and the movement working condition is an acceleration working condition, limiting the required torque value of the electric control turbine to be smaller than a first threshold value through a first electric control turbine control strategy so as to ensure that a bypass valve of a supercharger of the electric control turbine is in an open state;
the first threshold value is a required torque value when the electric control turbine does not use the supercharger to carry out supercharging.
2. The method of claim 1, wherein accelerator opening is positively correlated with the desired torque value, the first electronically controlled turbine control strategy comprising:
and limiting the required torque value corresponding to the same accelerator opening degree so as to enable the required torque value to be smaller than the control strategy of the first threshold value.
3. The method according to claim 2, wherein limiting the required torque value corresponding to the same accelerator opening comprises:
and reducing 75% of the required torque value corresponding to the same accelerator opening.
4. A method according to claim 2 or 3, wherein the acceleration conditions comprise:
and the throttle opening is larger than the movement working condition of the first throttle opening threshold.
5. The method according to claim 1, wherein the method further comprises:
if the current gear is a power gear and the movement working condition is an acceleration working condition, a second electric control turbine control strategy is called to control the supercharger; the second electronically controlled turbine control strategy is a control strategy that does not limit the required torque value of the electronically controlled turbine.
6. The method according to claim 1, wherein the method further comprises:
acquiring an engine starting signal;
the step information and the movement condition information are obtained, including:
and when the engine starting signal indicates that the engine is started, gear information and movement condition information are acquired.
7. An electronically controlled turbocharger noise control apparatus, the apparatus comprising:
the acquisition module is used for acquiring gear information and movement condition information;
the electronic control unit ECU is used for limiting the required torque value of the electric control turbine to be smaller than a first threshold value through a first electric control turbine control strategy if the current gear is a non-power gear and the movement working condition is an acceleration working condition so as to ensure that a bypass valve of a supercharger of the electric control turbine is in an open state;
the first threshold value is a torque value when the electric control turbine does not use the supercharger to carry out supercharging.
8. The apparatus of claim 7, wherein accelerator opening is positively correlated with the desired torque value, the ECU being specifically configured to:
and limiting the required torque value corresponding to the same accelerator opening degree so as to enable the required torque value to be smaller than the control strategy of the first threshold value.
9. The apparatus of claim 8, wherein limiting the required torque value corresponding to the same accelerator opening comprises:
and reducing 75% of the required torque value corresponding to the same accelerator opening.
10. The apparatus of claim 7, wherein the ECU is further configured to:
if the current gear is a power gear and the movement working condition is an acceleration working condition, a second electric control turbine control strategy is called to control the supercharger; the second electronically controlled turbine control strategy is a control strategy that does not limit the required torque value of the electronically controlled turbine.
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