CN114320628B - Vehicle control method, device, equipment, vehicle and storage medium - Google Patents
Vehicle control method, device, equipment, vehicle and storage medium Download PDFInfo
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- CN114320628B CN114320628B CN202210056599.5A CN202210056599A CN114320628B CN 114320628 B CN114320628 B CN 114320628B CN 202210056599 A CN202210056599 A CN 202210056599A CN 114320628 B CN114320628 B CN 114320628B
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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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Abstract
The embodiment of the invention provides a vehicle control method, a device, equipment, a vehicle and a storage medium, wherein the method comprises the following steps: the method comprises the steps of obtaining the accelerator opening degree, the accelerator opening degree change slope, the air inlet pressure change slope, the deflating valve opening degree and the deflating valve opening degree change slope of a vehicle, judging whether the vehicle runs on the plateau in the condition that the accelerator is suddenly accelerated to the end or not according to the accelerator opening degree, the air inlet pressure change slope, the deflating valve opening degree and the deflating valve opening degree change slope, and adjusting the opening degree of the deflating valve according to the judgment result, so that the rotating speed of the supercharger is reduced on the premise that the power performance of the vehicle is not lost, the use of other working conditions is not influenced, and the protection of the supercharger is realized.
Description
Technical Field
The present invention relates to the field of vehicle control, and in particular, to a vehicle control method, apparatus, device, vehicle, and storage medium.
Background
The supercharger is a device for improving the air inlet pressure by utilizing the exhaust energy, and when the engine runs to generate high-pressure exhaust gas to push the turbine to rotate, the pressing wheel also rotates along with the high-pressure exhaust gas, so that the air inlet pressure is improved. When the vehicle works on the plateau, the pressure difference between the front and the rear of the turbine is increased due to the reduction of the environmental pressure, and the supercharger is damaged due to the overhigh rotating speed.
At present, related regulations are provided for the oil protection amount of the supercharger and an electronic control air release valve in the prior art, but under some special working conditions, because the air release valve is controlled by a PID (proportional integral derivative), the opening of the air release valve cannot be adjusted in time, and the supercharger may be overspeed.
Disclosure of Invention
The embodiment of the invention provides a vehicle control method, a vehicle control device, vehicle control equipment, a vehicle and a storage medium, which can adjust the opening of a deflation valve in time and avoid overspeed of a supercharger.
In a first aspect, an embodiment of the present invention provides a vehicle control method, including:
acquiring the opening degree of an accelerator, the change slope of the opening degree of the accelerator, the air inlet pressure, the change slope of the air inlet pressure, the opening degree of a vent valve and the change slope of the opening degree of the vent valve of a vehicle;
judging whether the vehicle runs on the plateau under the condition that the accelerator is suddenly accelerated to the bottom according to the accelerator opening, the accelerator opening change slope, the air inlet pressure change slope, the air vent valve opening and the air vent valve opening change slope;
and adjusting the opening of the air release valve according to the judgment result.
Optionally, adjusting the opening of the purge valve according to the determination result includes:
and if the vehicle runs under the condition that the accelerator is suddenly accelerated on the plateau, adjusting the opening of the air release valve to be larger than the conventional opening, and keeping the opening within the preset time.
Optionally, if the vehicle runs on the plateau under the condition that the accelerator is suddenly accelerated, the opening degree of the purge valve is adjusted to be larger than the conventional opening degree, and the opening degree is maintained within a preset time, including:
if the vehicle runs under the condition that the accelerator is suddenly accelerated on the plateau, determining the target opening of a deflation valve according to the altitude of the vehicle and the rotating speed of the vehicle; wherein the target opening degree is greater than a conventional opening degree;
and adjusting the air bleeding valve to a target opening degree, and keeping the target opening degree within a preset time.
Optionally, according to the accelerator opening, the gradient of accelerator opening change, the intake pressure, the gradient of intake pressure change, the opening of the bleed valve, the gradient of bleed valve opening change, it is determined whether the vehicle is running on the plateau under the condition of rapid acceleration from the accelerator to the bottom, including:
if the accelerator opening is larger than the accelerator opening threshold, the accelerator opening change slope is larger than the accelerator slope threshold, the intake pressure is larger than the intake pressure threshold, the intake pressure change slope is larger than the intake pressure slope threshold, the deflating valve opening is larger than the deflating valve opening threshold, the deflating valve opening change slope is larger than the deflating valve slope threshold, and then the condition that the vehicle runs on the plateau on the accelerator to the bottom emergency acceleration is determined.
Optionally, the determining whether the vehicle runs on the plateau before the accelerator is run to the bottom emergency acceleration condition according to the accelerator opening, the accelerator opening change slope, the intake pressure change slope, the deflation valve opening, and the deflation valve opening change slope further includes:
and determining an intake pressure threshold according to the altitude of the vehicle and the rotating speed of the vehicle.
Optionally, the method further includes:
and after the opening degree of the air release valve is kept for a preset time, adjusting the air release valve to a conventional opening degree.
In a second aspect, an embodiment of the present invention provides a vehicle control apparatus, including:
the acquisition module is used for acquiring the accelerator opening, the change slope of the accelerator opening, the air inlet pressure, the change slope of the air inlet pressure, the opening of the air bleed valve and the change slope of the opening of the air bleed valve of the vehicle;
the judgment module is used for judging whether the vehicle runs on the plateau in the condition that the accelerator is at the bottom emergency acceleration according to the accelerator opening, the accelerator opening change slope, the air inlet pressure change slope, the air vent valve opening and the air vent valve opening change slope;
and the adjusting module is used for adjusting the opening of the air release valve according to the judgment result.
In a third aspect, an embodiment of the present invention provides an electronic device, including: a processor, and a memory communicatively coupled to the processor;
the memory stores computer-executable instructions;
the processor executes computer-executable instructions stored by the memory to implement the method of any of the first aspects above.
In a fourth aspect, an embodiment of the present invention provides a vehicle, including: a supercharger and an apparatus as described in the third aspect.
In a fifth aspect, the present invention provides a computer-readable storage medium, in which computer-executable instructions are stored, and when the computer-executable instructions are executed by a processor, the computer-executable instructions are used to implement the method according to any one of the above first aspects.
In a sixth aspect, embodiments of the present invention provide a computer program product, which includes a computer program, and when executed by a processor, the computer program implements the method according to any one of the first aspect.
The vehicle control method, the device, the equipment, the vehicle and the storage medium provided by the embodiment of the invention are used for obtaining the accelerator opening, the accelerator opening change slope, the air inlet pressure change slope, the air outlet valve opening and the air outlet valve opening change slope of the vehicle, judging whether the vehicle runs on the accelerator to the bottom emergency acceleration condition on plateau according to the accelerator opening, the accelerator opening change slope, the air inlet pressure change slope, the air outlet valve opening and the air outlet valve opening change slope, regulating the opening of the air outlet valve according to the judgment result, determining whether the vehicle currently runs on the accelerator to the bottom emergency acceleration condition through judging the accelerator opening and the accelerator opening change slope, determining the time for opening the air outlet valve without influencing the acceleration performance of the vehicle through judging the air inlet pressure and the air inlet pressure change slope, determining the current air outlet valve opening of the vehicle through the air outlet valve opening and the air outlet opening change slope, and reducing the rotating speed of the supercharger on the premise of not influencing other working conditions, thereby realizing the protection of the supercharger.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic view of an application scenario provided in an embodiment of the present invention;
FIG. 2 is a flow chart illustrating a vehicle control method according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of determining the opening degree of the purge valve and the slope of the change of the opening degree of the purge valve according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating an exemplary method for determining intake pressure and a slope of a change in intake pressure according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of determining an accelerator opening and a gradient of a change of the accelerator opening according to an embodiment of the present invention;
FIG. 6 is a schematic diagram illustrating an exemplary embodiment of a method for adjusting an opening of a bleed valve;
fig. 7 is a schematic structural diagram of a vehicle control device according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
With the above figures, certain embodiments of the invention have been illustrated and described in more detail below. The drawings and the description are not intended to limit the scope of the inventive concept in any way, but rather to illustrate it by those skilled in the art with reference to specific embodiments.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. The following description refers to the accompanying drawings in which the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
The following describes the technical solution of the present invention and how to solve the above technical problems in detail by specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
The following explains an application scenario provided by an embodiment of the present invention: the scheme provided by the embodiment of the invention relates to a supercharger. The supercharger is a device for increasing intake pressure by using exhaust energy, and air before entering an engine cylinder is compressed by the supercharger to increase the density of the air, so that more air is filled into the cylinder, and the power of the engine is increased. The rotating speed of the supercharger during compression is within a certain range, and if the rotating speed of the supercharger during working exceeds the highest designed rotating speed, the supercharger can be damaged, so that the performance of the whole vehicle is influenced.
In some technologies, the protection oil quantity of the supercharger and the electronic control air release valve are specified, but under special working conditions, when the pressure of the exhaust gas before the vortex of the supercharger is increased instantaneously due to the PID control of the air release valve, the opening adjustment of the air release valve has hysteresis, and the supercharger is overspeed in a short time, so that the supercharger is damaged.
Therefore, the embodiment of the invention provides a vehicle control method, which judges the accelerator opening, the change slope of the accelerator opening, the air inlet pressure, the change slope of the air inlet pressure, the air outlet valve opening and the change slope of the air outlet valve opening of the vehicle, adjusts the opening of the air outlet valve if the vehicle is in the condition that the accelerator is suddenly accelerated when running on the plateau according to the judgment result, can select the proper time for opening the air outlet valve by judging the air outlet valve opening and the change slope of the air outlet valve opening, can open the air outlet valve when meeting the requirement according to the air inlet pressure by judging the air inlet pressure and the change slope of the air inlet pressure without influencing the power performance of the vehicle, and can determine whether the vehicle is in the condition that the accelerator is suddenly accelerated by judging the accelerator opening and the change slope of the accelerator opening.
Fig. 1 is a schematic view of an application scenario provided in an embodiment of the present invention. As shown in fig. 1, when the vehicle 10 travels in an altitude area with a high altitude, it is detected that the accelerator opening of the vehicle is greater than the accelerator opening threshold, the change slope of the accelerator opening is greater than the accelerator slope threshold, the intake pressure is greater than the intake pressure threshold, the change slope of the intake pressure is greater than the intake pressure slope threshold, the opening of the purge valve is greater than the opening threshold of the purge valve, and the change slope of the purge valve is greater than the slope threshold of the purge valve, the purge valve is adjusted to a larger opening.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The features of the embodiments and examples described below may be combined with each other without conflict between the embodiments.
Fig. 2 is a schematic flowchart of a vehicle control method according to an embodiment of the present invention. As shown in fig. 2, the method in the present embodiment may include, applied to an electronic control unit:
The accelerator opening may refer to an opening of an accelerator pedal. The change slope of the accelerator opening may be an instantaneous change value of the accelerator opening, and the accelerator opening is increased in unit time. The intake air pressure may be an intake air pressure of the engine. The intake pressure change slope may be a momentary change value of the engine intake pressure, an increased intake pressure per unit time. The change slope of the opening of the air release valve can be an instantaneous change value of the opening of the air release valve, and the opening of the air release valve is increased in unit time.
Optionally, the accelerator opening change slope, the intake pressure change slope, the bleed valve opening, and the bleed valve opening change slope of the vehicle in the running process may be obtained in real time.
Optionally, the operating condition of the current vehicle may be determined by the accelerator opening and the accelerator opening change slope, the intake pressure of the current vehicle may be determined by the intake pressure and the intake pressure change slope, and the purge valve opening condition of the current vehicle may be determined by the purge valve opening and the purge valve opening change slope, and then, whether the vehicle is operating in a plateau under a sudden acceleration (loadstep) condition may be determined by the accelerator opening, the accelerator opening change slope, the intake pressure change slope, the purge valve opening, and the purge valve opening change slope of the vehicle.
Optionally, whether the acceleration condition is the acceleration condition of the accelerator reaching the bottom or not can be determined through the accelerator opening and the accelerator opening change slope of the vehicle, and the operation on the plateau can be determined through the intake pressure, the intake pressure change slope, the deflation valve opening and the deflation valve opening change slope of the vehicle.
Specifically, a plurality of preset thresholds may be set, when the accelerator opening, the accelerator opening change slope, the intake pressure change slope, the bleed valve opening, and the bleed valve opening change slope of the vehicle respectively and correspondingly satisfy the conditions of the plurality of preset thresholds, the vehicle is operated in an accelerator-to-emergency acceleration condition on the plateau, and correspondingly, when at least one of the accelerator opening, the accelerator opening change slope, the intake pressure change slope, the bleed valve opening, and the bleed valve opening change slope of the vehicle does not satisfy the corresponding preset threshold, the vehicle is not operated in the accelerator-to-emergency acceleration condition on the plateau.
And step 203, adjusting the opening of the air release valve according to the judgment result.
The air release valve in the vehicle can be an electronic control air release valve, and the opening degree of the air release valve can be controlled by the electronic control air release valve in a mode of controlling the air release pressure of the air release valve.
Wherein, the opening degree of the air release valve can be adjusted to be larger.
Optionally, when the vehicle is in a plateau operation on the condition that the accelerator is accelerated to the bottom emergency, the opening of the air release valve can be adjusted, and when the vehicle is not in a plateau operation on the condition that the accelerator is accelerated to the bottom emergency, the opening of the original air release valve can be maintained.
According to the vehicle control method provided by the embodiment, the accelerator opening change slope, the air inlet pressure change slope, the air vent valve opening and the air vent valve opening change slope of the vehicle are obtained, whether the vehicle runs on the accelerator to the bottom emergency acceleration working condition on the plateau is judged according to the accelerator opening, the accelerator opening change slope, the air inlet pressure change slope, the air vent valve opening and the air vent valve opening change slope, whether the vehicle runs on the accelerator to the bottom emergency acceleration working condition can be determined according to the judgment result, the time for opening the air vent valve can be determined without influencing the acceleration performance of the vehicle through the judgment of the accelerator opening and the accelerator opening change slope, the current air vent valve opening of the vehicle can be determined through the air vent valve opening and the air vent valve opening change slope, so that the rotating speed of the supercharger is reduced on the premise of not losing the vehicle dynamic performance and not influencing the use of other working conditions, and the protection of the supercharger is realized.
On the basis of the technical solution provided by the above embodiment, optionally, adjusting the opening degree of the purge valve according to the determination result includes:
and if the vehicle runs to the bottom emergency acceleration condition from the accelerator on the plateau, adjusting the opening of the deflation valve to be larger than the conventional opening, and keeping the opening within the preset time.
The preset time may be set by a person, for example, 3 seconds. The preset time may also be determined from experimental data, determined from current vehicle parameters. The normal opening may be the opening of a purge valve of a vehicle running in normal conditions. The target opening degree of the purge valve may be a maximum opening degree of the purge valve and greater than a conventional opening degree.
Optionally, when the vehicle runs on the plateau under the condition that the accelerator is suddenly accelerated, the target opening of the deflation valve is adjusted, and the target opening of the deflation valve is kept within the preset time.
When the vehicle runs on the plateau under the condition that the accelerator is suddenly accelerated, the target opening degree of the air release valve is increased and kept within a certain time, so that the overspeed condition of the supercharger caused by the untimely air release valve can be timely avoided.
Optionally, if the vehicle runs on the plateau under the condition that the accelerator is suddenly accelerated, the opening degree of the purge valve is adjusted to be larger than the conventional opening degree, and the opening degree is maintained within a preset time, including:
if the vehicle runs under the condition that the accelerator is suddenly accelerated on the plateau, determining the target opening degree of the air release valve according to the altitude of the vehicle and the rotating speed of the vehicle; wherein the target opening degree is greater than a conventional opening degree; and adjusting the air bleeding valve to a target opening degree, and keeping the target opening degree for a preset time.
Optionally, when the vehicle runs on the plateau under the condition that the accelerator is suddenly accelerated, the target opening degree of the purge valve can be determined according to the altitude of the vehicle and the current rotating speed of the vehicle, and the opening degree of the purge valve is adjusted to the target opening degree and is kept within the preset time.
Specifically, the currently most suitable opening, i.e. the target opening, of the purge valve may be determined according to the altitude of the vehicle and the rotation speed of the vehicle in manners such as manual experience or calculation of current vehicle parameters, which is not specifically limited in this embodiment.
The target opening degree of the air release valve is determined through the altitude of the vehicle and the speed of the vehicle, the target opening degree can be accurately obtained, and the overspeed condition of the supercharger is effectively improved.
Optionally, according to the accelerator opening, the gradient of accelerator opening change, the intake pressure, the gradient of intake pressure change, the opening of the bleed valve, the gradient of bleed valve opening change, it is determined whether the vehicle is running on the plateau under the condition of rapid acceleration from the accelerator to the bottom, including:
if the accelerator opening is greater than the accelerator opening threshold, the accelerator opening change slope is greater than the accelerator slope threshold, the intake pressure is greater than the intake pressure threshold, the intake pressure change slope is greater than the intake pressure slope threshold, the bleeder valve opening is greater than the bleeder valve opening threshold, the bleeder valve opening change slope is greater than the bleeder valve slope threshold, then confirm the vehicle is on the plateau and is operated in the accelerator to the sudden acceleration operating mode to the end.
The throttle opening threshold, the throttle slope threshold, the intake pressure slope threshold, the purge valve opening threshold, and the purge valve slope threshold may be set manually. For example, if the accelerator opening of the vehicle is 0 to 100%, the accelerator opening threshold value may be set to 80%.
Optionally, when the accelerator opening is greater than the accelerator opening threshold, the accelerator opening change slope is greater than the accelerator slope threshold, the intake pressure is greater than the intake pressure threshold, the intake pressure change slope is greater than the intake pressure slope threshold, the purge valve opening is greater than the purge valve opening threshold, and the purge valve opening change slope is greater than the purge valve slope threshold, it may be determined that the vehicle is operating on the plateau in an emergency acceleration condition from the accelerator to the bottom. And when at least one of the accelerator opening, the accelerator opening change slope, the air inlet pressure change slope, the air outlet valve opening and the air outlet valve opening change slope is smaller than a corresponding threshold value, determining that the vehicle does not run on the plateau and is higher than the accelerator to the bottom emergency acceleration condition.
By setting a plurality of threshold values and respectively comparing the accelerator opening, the accelerator opening change slope, the air inlet pressure change slope, the air outlet valve opening and the air outlet valve opening change slope of the vehicle with the corresponding threshold values, the working condition of the vehicle can be judged from multiple aspects, and the accuracy of judging the working condition of the vehicle is improved.
Optionally, the determining whether the vehicle runs on the plateau before the accelerator is run to the bottom emergency acceleration condition according to the accelerator opening, the accelerator opening change slope, the intake pressure change slope, the deflation valve opening, and the deflation valve opening change slope further includes:
and determining an intake pressure threshold according to the altitude of the vehicle and the rotating speed of the vehicle.
Alternatively, the intake pressure threshold may be derived from the altitude at which the vehicle is located and the vehicle speed. Specifically, the current intake pressure threshold of the vehicle may be determined according to the altitude of the vehicle and the rotation speed of the vehicle through manual experience or calculation of current vehicle parameters, which is not specifically limited in this embodiment.
And according to the obtained intake pressure threshold, when the obtained current intake pressure is greater than the intake pressure threshold, the current intake pressure is increased to be higher than the required pressure, and the condition that the intake pressure is insufficient does not exist, so that the opening degree of the deflation valve needs to be adjusted.
The air inlet pressure threshold under the current working condition is determined according to the altitude of the vehicle and the rotating speed of the vehicle, and the accuracy of determining the air inlet pressure threshold is improved.
Optionally, the method further includes: and after the opening degree of the air release valve is kept for a preset time, adjusting the air release valve to a conventional opening degree.
Alternatively, the purge valve may be adjusted to a normal opening after the opening of the purge valve is maintained for a preset time. When the conventional opening of the air release valve is adjusted, the accelerator opening, the change slope of the accelerator opening, the air inlet pressure, the change slope of the air inlet pressure, the air release valve opening and the change slope of the air release valve opening of the vehicle can be obtained in real time, if the accelerator opening is larger than the accelerator opening threshold, the change slope of the accelerator opening is larger than the accelerator slope threshold, the air inlet pressure is larger than the air inlet pressure threshold, the change slope of the air inlet pressure is larger than the air inlet pressure slope threshold, the air release valve opening is larger than the air release valve opening threshold, and the change slope of the air release valve opening is larger than the air release valve slope threshold, the opening of the air release valve is continuously adjusted, and if at least one of the accelerator opening, the change slope of the accelerator opening, the air inlet pressure, the change slope of the air release valve, and the change slope of the air release valve opening is smaller than the corresponding threshold, the conventional opening of the air release valve is maintained.
After the opening degree of the air release valve is maintained at the target opening degree for the preset time, the opening degree of the air release valve is adjusted to be the conventional opening degree, so that the influence on the performance of the vehicle caused by the fact that the opening degree of the air release valve is maintained at the target opening degree for a long time can be avoided.
Alternatively, the method for controlling the vehicle may be implemented by a program or a device, and the present invention is not particularly limited thereto.
In practical applications, the present embodiment may implement the vehicle control method through a trigger.
Optionally, if the accelerator opening is greater than the accelerator opening threshold, the accelerator opening change slope is greater than the accelerator slope threshold, the intake pressure is greater than the intake pressure threshold, the intake pressure change slope is greater than the intake pressure slope threshold, the deflating valve opening is greater than the deflating valve opening threshold, the deflating valve opening change slope is greater than the deflating valve slope threshold, then it is determined that the vehicle runs on the plateau in the accelerator to the bottom emergency acceleration condition, which may include:
inputting the magnitude relation between the accelerator opening and the accelerator opening threshold value to a first end of a first trigger, and inputting the magnitude relation between the change slope of the deflation valve opening and the slope threshold value of the deflation valve to a second end of the first trigger; the first trigger is connected with a first end of a first operation module and used for determining a first trigger result according to a signal of a second end of the first trigger and sending the first trigger result to the control module when the signal of the first end of the first trigger meets requirements, and not outputting the signal to the first operation module when the signal of the first end does not meet requirements;
inputting the size relation between the deflation valve opening and the deflation valve opening threshold value to the second end of the first operation module, and performing AND operation on the signal of the first end of the first operation module and the signal of the second end to obtain a first output result;
inputting the magnitude relation between the accelerator opening and the accelerator opening threshold value to a first end of a second trigger, and inputting the magnitude relation between the intake pressure change slope and the intake pressure slope threshold value to a second end of the second trigger; the second trigger is connected with a first end of a second operation module and used for determining a second trigger result according to a signal of a second end of the second trigger and sending the second trigger result to the control module when the signal of the first end of the second trigger meets requirements, and not outputting the signal to the first operation module when the signal of the first end does not meet requirements;
inputting the magnitude relation between the air inlet pressure and the air inlet pressure threshold value to a second end of the second operation module, and performing AND operation on a signal of the first end of the second operation module and a signal of the second end to obtain a second output result;
inputting the magnitude relation between the accelerator opening and the accelerator opening threshold value to a first end of a third trigger, and inputting the magnitude relation between the accelerator opening change slope and the accelerator slope threshold value to a second end of the third trigger; the third trigger is connected with the first end of a third operation module, and is used for determining a third trigger result according to a signal of the second end of the third trigger and sending the third trigger result to the control module when the signal of the first end of the third trigger meets the requirement, and not outputting the signal to the third operation module when the signal of the third end does not meet the requirement;
inputting the relationship between the throttle pressure and the throttle pressure threshold value to a second end of the third operation module, and performing and operation on a signal of a first end and a signal of a second end of the third operation module to obtain a third output result;
and if the first output result, the second output result and the third output result are judged to meet the conditions, determining that the vehicle runs to the accelerator end emergency acceleration condition on the plateau.
Optionally, the first output result may be that the opening of the purge valve is greater than a purge valve opening threshold, the change slope of the purge valve opening is greater than a purge valve slope threshold, the second output result may be that the intake pressure is greater than an intake pressure threshold, the change slope of the intake pressure is greater than an intake pressure slope threshold, and the third output result may be that the opening of the accelerator is greater than an accelerator opening threshold, and the change slope of the accelerator is greater than an accelerator slope threshold.
The accelerator opening and the accelerator opening threshold of the vehicle are judged by using the trigger, and when the accelerator opening and the accelerator opening threshold do not meet the conditions, the accelerator opening change slope, the intake pressure change slope, the deflation valve opening and the deflation valve opening change slope are not judged, so that the time can be saved, and the judgment efficiency is improved.
Fig. 3 is a schematic diagram for determining the purge valve opening and the purge valve opening change slope according to an embodiment of the present invention, and as shown in fig. 3, an FF (Flip Flop) may be used to receive a relationship between the purge valve opening change slope and the purge valve slope threshold, and a relationship between the accelerator opening and the opening threshold. Specifically, the FF receives the relation between the opening change slope of the air valve and the slope threshold of the air valve through the S end, receives the relation between the opening of the accelerator and the opening threshold of the accelerator through the R end, and triggers the FF to execute corresponding operation. If the accelerator opening is smaller than the accelerator opening threshold, R =1, and if the accelerator opening is larger than the accelerator opening threshold, R =0. When R =1, FF is output as
And when the change slope of the opening degree of the air release valve received by the end R =0,S is greater than the slope threshold of the opening degree of the air release valve, the FF output is Q. And (c) the judgment result that the opening of the air release valve is larger than the threshold of the opening of the air release valve and the result output by the Q end&) A first output result may be obtained. The first output result is used for indicating that the opening degree of the air release valve is greater than the opening degree threshold value of the air release valve, and the change slope of the air release valve is greater than the slope threshold value of the air release valve.
Fig. 4 is a schematic diagram for determining intake pressure and a change slope of the intake pressure according to an embodiment of the present invention, as shown in fig. 4, where FF is used to receive a relationship between a change slope of the intake pressure and a slope threshold of the intake pressure, and a relationship between an opening degree of an accelerator and an opening degree threshold. Among other things, altitude and speed may determine an intake pressure threshold. Specifically, the FF receives the relation between the change slope of the intake pressure and the slope threshold of the intake pressure through the S end, receives the relation between the throttle opening and the throttle opening threshold through the R end, and triggers the FF to execute corresponding operation. If the accelerator opening is smaller than the accelerator opening threshold, R =1, and if the accelerator opening is larger than the accelerator opening threshold, R =0. When R =1, FF is output as
When the R =0,S end receives the intake pressure changeWhen the slope is greater than the intake pressure slope threshold, the FF output is Q. And (c) the judgment result that the opening of the air release valve is larger than the threshold of the opening of the air release valve and the result output by the Q end&) A second output result may be obtained. The second output is used to indicate that the intake pressure is greater than the intake pressure threshold and the slope of the change in intake pressure is greater than the intake pressure slope threshold.
Fig. 5 is a schematic diagram for determining an accelerator opening and a gradient of a change of the accelerator opening according to an embodiment of the present invention, as shown in fig. 5, where FF is used to receive a relationship between the gradient of the change of the accelerator opening and a threshold of the gradient of the accelerator opening, and a relationship between the accelerator opening and a threshold of the opening. Specifically, the FF receives the relation between the throttle opening change slope and the throttle slope threshold through the S end, receives the relation between the throttle opening and the throttle opening threshold through the R end, and triggers the FF to execute corresponding operation. If the accelerator opening is smaller than the accelerator opening threshold, R =1, and if the accelerator opening is larger than the accelerator opening threshold, R =0. When R =1, FF is output as
When the change slope of the accelerator opening received by the end R =0,S is larger than the threshold value of the slope of the accelerator opening, the FF output is Q. And (c) carrying out AND operation on the judgment result that the accelerator opening is larger than the accelerator opening threshold value and the result output by the Q end&) A third output result may be obtained. The third output result is used for indicating that the accelerator opening is larger than the accelerator opening threshold value, and the change slope of the accelerator opening is larger than the accelerator opening slope threshold value.
FIG. 6 is a schematic diagram illustrating the principle of adjusting the opening of the bleed valve according to the embodiment of the present invention, as shown in FIG. 6, in which FF is used for the AND operation of the received first output result, the second output result and the third output result, and the relationship between the accelerator opening and the opening threshold. And when R =0, the S end receives the AND operation of the first output result, the second output result and the third output result, outputs the results through the Q end and enters the timer through the E end, when the E end meets the requirement and the accelerator opening is greater than the accelerator opening threshold value, a preset time x is set at the timer end, and A is less than x and less than B. And determining the target opening of the deflation valve according to the altitude and the rotating speed, inputting the target opening and the conventional opening into MAX, and selecting the maximum value as the target opening to obtain a fourth module. The fourth module can be used for adjusting the opening of the air release valve to the target opening according to the current preset time and the target opening, and maintaining the preset time.
When at least one of the first output result, the second output result, and the third output result does not satisfy the condition, then fig. 6 need not be executed.
The overspeed condition of the supercharger is adjusted through the trigger, the opening of the air release valve can be quickly adjusted when the situation that the opening of the accelerator is larger than the threshold of the opening of the accelerator, the change slope of the opening of the accelerator is larger than the threshold of the slope of the accelerator, the intake pressure is larger than the threshold of the intake pressure, the change slope of the intake pressure is larger than the threshold of the slope of the intake pressure, the opening of the air release valve is larger than the threshold of the opening of the air release valve, and the change slope of the opening of the air release valve is larger than the threshold of the slope of the air release valve is detected, so that the control efficiency is improved.
Fig. 7 is a schematic structural diagram of a vehicle control device according to an embodiment of the present invention. As shown in fig. 7, the vehicle control apparatus provided in the present embodiment may include:
the acquiring module 701 is used for acquiring the accelerator opening, the change slope of the accelerator opening, the air intake pressure, the change slope of the air intake pressure, the opening of a bleed valve and the change slope of the opening of the bleed valve of a vehicle;
a determining module 702, configured to determine whether the vehicle is operating on a plateau under an accelerator base emergency acceleration condition according to the accelerator opening, the accelerator opening change slope, the intake pressure change slope, the bleeder valve opening, and the bleeder valve opening change slope;
and the adjusting module 703 is configured to adjust the opening of the purge valve according to the determination result.
Optionally, the adjusting module 703 is specifically configured to:
and if the vehicle runs under the condition that the accelerator is suddenly accelerated on the plateau, adjusting the opening of the air release valve to be larger than the conventional opening, and keeping the opening within the preset time.
Optionally, the adjusting module 703 adjusts the opening of the purge valve to be larger than a conventional opening if the vehicle runs on the plateau under the condition of rapid acceleration from the accelerator to the end, and maintains the opening within a preset time, specifically configured to:
if the vehicle runs under the condition that the accelerator is suddenly accelerated on the plateau, determining the target opening of a deflation valve according to the altitude of the vehicle and the rotating speed of the vehicle; wherein the target opening degree is greater than a conventional opening degree;
and adjusting the air bleeding valve to a target opening degree, and keeping the target opening degree within a preset time.
Optionally, the determining module 702 is specifically configured to:
if the accelerator opening is larger than the accelerator opening threshold, the accelerator opening change slope is larger than the accelerator slope threshold, the intake pressure is larger than the intake pressure threshold, the intake pressure change slope is larger than the intake pressure slope threshold, the deflating valve opening is larger than the deflating valve opening threshold, the deflating valve opening change slope is larger than the deflating valve slope threshold, and then the condition that the vehicle runs on the plateau on the accelerator to the bottom emergency acceleration is determined.
Optionally, the determining module 702 is further configured to:
and when judging whether the vehicle runs before the condition of sudden acceleration from the accelerator to the bottom on the plateau according to the accelerator opening, the accelerator opening change slope, the air inlet pressure change slope, the air vent valve opening and the air vent valve opening change slope, determining an air inlet pressure threshold according to the altitude of the vehicle and the rotating speed of the vehicle.
Optionally, the adjusting module 703 is further configured to:
adjusting the purge valve to a normal opening after the opening of the purge valve is maintained for a preset time.
The apparatus provided in this embodiment may implement the technical solutions of the method embodiments shown in fig. 1 to fig. 6, and the implementation principles and technical effects are similar, which are not described herein again.
Fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present invention. As shown in fig. 8, the electronic device provided in this embodiment may include: a processor 81, and a memory 82 communicatively coupled to the processor;
the memory 82 stores computer-executable instructions;
the processor 81 executes the computer executable instructions stored in the memory 82, so that the processor 81 executes the method according to any of the above embodiments.
Wherein the memory 82 and the processor 81 may be connected by a bus 83.
For specific implementation principles and effects of the device provided in this embodiment, reference may be made to relevant description and effects corresponding to the embodiments shown in fig. 1 to fig. 6, which are not described in detail herein.
An embodiment of the present invention further provides a vehicle, including: a supercharger and an electronic device as described in fig. 8.
Embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the vehicle control method provided in any embodiment of the present invention.
Embodiments of the present invention further provide a computer program product, which includes a computer program, and when the computer program is executed by a processor, the computer program implements the vehicle control method according to any embodiment of the present invention.
In the several embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of modules is merely a logical division, and other divisions may be realized in practice, for example, a plurality of modules or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to implement the solution of the embodiment.
In addition, functional modules in the embodiments of the present invention may be integrated into one processing unit, or each module may exist alone physically, or two or more modules are integrated into one unit. The unit formed by the modules can be realized in a hardware form, and can also be realized in a form of hardware and a software functional unit.
The integrated module implemented in the form of a software functional module may be stored in a computer-readable storage medium. The software functional module is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) or a processor to execute some steps of the methods according to the embodiments of the present invention.
It should be understood that the Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor, or in a combination of hardware and software modules.
The memory may comprise a high-speed RAM memory, and may further comprise a non-volatile storage NVM, such as at least one disk memory, and may also be a usb disk, a removable hard disk, a read-only memory, a magnetic or optical disk, etc.
The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (Extended Industry Standard Architecture) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, the buses in the figures of the present invention are not limited to only one bus or one type of bus.
The storage medium may be implemented by any type or combination of volatile and non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an Application Specific Integrated Circuits (ASIC). Of course, the processor and the storage medium may reside as discrete components in an electronic device or host device.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (10)
1. A vehicle control method characterized by comprising:
acquiring the opening degree of an accelerator, the change slope of the opening degree of the accelerator, the air inlet pressure, the change slope of the air inlet pressure, the opening degree of a vent valve and the change slope of the opening degree of the vent valve of a vehicle;
judging whether the vehicle runs on the plateau under the condition that the accelerator is suddenly accelerated to the bottom according to the accelerator opening, the accelerator opening change slope, the air inlet pressure change slope, the air vent valve opening and the air vent valve opening change slope;
and adjusting the opening of the air release valve according to the judgment result.
2. The method according to claim 1, wherein adjusting the opening of the purge valve according to the determination result comprises:
and if the vehicle runs under the condition that the accelerator is suddenly accelerated on the plateau, adjusting the opening of the air release valve to be larger than the conventional opening, and keeping the opening within the preset time.
3. The method as claimed in claim 2, wherein if the vehicle is running at a top of the throttle to a bottom-up acceleration condition, adjusting the opening degree of the purge valve to be larger than a regular opening degree and maintaining the opening degree for a preset time comprises:
if the vehicle runs under the condition that the accelerator is suddenly accelerated on the plateau, determining the target opening of a deflation valve according to the altitude of the vehicle and the rotating speed of the vehicle; wherein the target opening degree is greater than a conventional opening degree;
and adjusting the air bleeding valve to a target opening degree, and keeping the target opening degree within a preset time.
4. The method of claim 1, wherein determining whether the vehicle is operating in a plateau above an accelerator bottom emergency acceleration condition according to the accelerator opening, the accelerator opening change slope, the intake pressure change slope, the bleeder valve opening, and the bleeder valve opening change slope comprises:
if the accelerator opening is larger than the accelerator opening threshold, the accelerator opening change slope is larger than the accelerator slope threshold, the intake pressure is larger than the intake pressure threshold, the intake pressure change slope is larger than the intake pressure slope threshold, the deflating valve opening is larger than the deflating valve opening threshold, the deflating valve opening change slope is larger than the deflating valve slope threshold, and then the condition that the vehicle runs on the plateau on the accelerator to the bottom emergency acceleration is determined.
5. The method of claim 4, wherein before determining whether the vehicle is operating in an accelerator-to-accelerator sudden acceleration condition on a plateau based on the accelerator opening, the accelerator opening change slope, the intake pressure change slope, the bleeder valve opening, and the bleeder valve opening change slope, further comprising:
and determining an intake pressure threshold according to the altitude of the vehicle and the rotating speed of the vehicle.
6. The method of any one of claims 1-3, further comprising:
and after the opening degree of the air release valve is kept for a preset time, adjusting the air release valve to a conventional opening degree.
7. A vehicle control apparatus, characterized by comprising:
the acquisition module is used for acquiring the accelerator opening, the change slope of the accelerator opening, the air inlet pressure, the change slope of the air inlet pressure, the opening of the air bleed valve and the change slope of the opening of the air bleed valve of the vehicle;
the judging module is used for judging whether the vehicle runs on the plateau under the condition of the accelerator to the emergency acceleration according to the accelerator opening, the accelerator opening change slope, the air inlet pressure change slope, the air outlet valve opening and the air outlet valve opening change slope;
and the adjusting module is used for adjusting the opening of the air release valve according to the judgment result.
8. An electronic device, comprising: a processor, and a memory communicatively coupled to the processor;
the memory stores computer-executable instructions;
the processor executes computer-executable instructions stored by the memory to implement the method of any of claims 1-6.
9. A vehicle, characterized by comprising: a supercharger and an apparatus as claimed in claim 8.
10. A computer-readable storage medium having computer-executable instructions stored therein, which when executed by a processor, are configured to implement the method of any one of claims 1-6.
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| CN202210056599.5A CN114320628B (en) | 2022-01-18 | 2022-01-18 | Vehicle control method, device, equipment, vehicle and storage medium |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1279813A2 (en) * | 2001-07-26 | 2003-01-29 | Toyota Jidosha Kabushiki Kaisha | Control device for a vehicle and control method thereof |
| JP2011169291A (en) * | 2010-02-22 | 2011-09-01 | Mitsubishi Motors Corp | Control device for internal combustion engine |
| CN103321690A (en) * | 2013-06-25 | 2013-09-25 | 潍柴动力股份有限公司 | Method and device for controlling supercharger plateau overspeed and automotive engine |
| JP2014169647A (en) * | 2013-03-01 | 2014-09-18 | Mitsubishi Motors Corp | Supercharger control device for internal combustion engine |
| CN110667589A (en) * | 2018-12-29 | 2020-01-10 | 长城汽车股份有限公司 | Driving mode skip control method, system and controller |
| CN111963257A (en) * | 2020-07-06 | 2020-11-20 | 中国人民解放军陆军军事交通学院 | Turbine overspeed protection system of two-stage adjustable supercharging system of diesel engine |
| CN113062809A (en) * | 2021-05-07 | 2021-07-02 | 潍柴动力股份有限公司 | Control method and device of electric control air bleed valve |
-
2022
- 2022-01-18 CN CN202210056599.5A patent/CN114320628B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1279813A2 (en) * | 2001-07-26 | 2003-01-29 | Toyota Jidosha Kabushiki Kaisha | Control device for a vehicle and control method thereof |
| JP2011169291A (en) * | 2010-02-22 | 2011-09-01 | Mitsubishi Motors Corp | Control device for internal combustion engine |
| JP2014169647A (en) * | 2013-03-01 | 2014-09-18 | Mitsubishi Motors Corp | Supercharger control device for internal combustion engine |
| CN103321690A (en) * | 2013-06-25 | 2013-09-25 | 潍柴动力股份有限公司 | Method and device for controlling supercharger plateau overspeed and automotive engine |
| CN110667589A (en) * | 2018-12-29 | 2020-01-10 | 长城汽车股份有限公司 | Driving mode skip control method, system and controller |
| CN111963257A (en) * | 2020-07-06 | 2020-11-20 | 中国人民解放军陆军军事交通学院 | Turbine overspeed protection system of two-stage adjustable supercharging system of diesel engine |
| CN113062809A (en) * | 2021-05-07 | 2021-07-02 | 潍柴动力股份有限公司 | Control method and device of electric control air bleed valve |
Non-Patent Citations (1)
| Title |
|---|
| 放气阀增压器在柴油机高原环境适应性改进中的应用研究;李书奇等;《车用发动机》;20160625(第03期);全文 * |
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