Method and device for determining throttle opening of hybrid vehicle

Abstract

The present application discloses a method and device for determining the throttle opening of a hybrid vehicle, belonging to the field of vehicle system control. The method includes: during the driving of the hybrid vehicle, if the engine is in the working state and the torque structure is activated, obtaining the pedal opening at the current moment; determining a pedal rate change curve, which characterizes the change rate of the pedal opening of the hybrid vehicle at different moments; if the slope corresponding to the current moment in the pedal rate change curve is greater than a reference threshold, determining the required torque at the current moment based on the pedal opening at the current moment; determining the required throttle opening at the current moment based on the required torque at the current moment; and determining the required throttle opening at the current moment as the actual throttle opening of the hybrid vehicle at the current moment. By controlling the throttle opening of the hybrid vehicle, the present application avoids the occurrence of torque mutation and improves the user experience.

Description

Technical Field

[0001] The present application relates to the field of vehicle system control, and particularly to a method and device for determining the throttle opening of a hybrid vehicle. Background Art

[0002] A hybrid vehicle has two power sources, namely an engine and an electric motor. Before the hybrid vehicle starts to accelerate to 100 kilometers per hour, the engine does not work, and the electric motor provides power for the hybrid vehicle. When the vehicle speed and the pedal opening reach a certain value, the engine will be forced to work. When the engine starts to work, the torque structure will not intervene, and after the engine has been working for a period of time, the torque structure will intervene. That is to say, there is a transition stage from non-torque-structure control to torque-structure control.

[0003] However, during the operation of the engine, the throttle opening will jump, and then a torque mutation will occur, resulting in a poor subjective feeling of the user, and even problems such as the vehicle shaking in the forward direction and jerking. Therefore, there is an urgent need for a method for determining the throttle opening of a hybrid vehicle. Summary of the Invention

[0004] The present application provides a method and device for determining the throttle opening of a hybrid vehicle, which can solve the problem that torque mutation occurs in the related technology, resulting in a poor subjective feeling of the user. The technical solution is as follows:

[0005] On the one hand, a method for determining the throttle opening of a hybrid vehicle is provided. The method includes:

[0006] During the driving of the hybrid vehicle, if the engine of the hybrid vehicle is in a working state and the torque structure is activated, obtain the pedal opening of the hybrid vehicle at the current moment;

[0007] Determine the pedal rate change curve of the hybrid vehicle, where the pedal rate change curve represents the change rate of the pedal opening of the hybrid vehicle at different moments;

[0008] If the slope corresponding to the current moment in the pedal rate change curve is greater than the reference threshold, determine the required torque of the hybrid vehicle at the current moment based on the pedal opening of the hybrid vehicle at the current moment;

[0009] Based on the required torque of the hybrid vehicle at the current moment, determine the required throttle opening of the hybrid vehicle at the current moment;

[0010] Determine the required throttle opening of the hybrid vehicle at the current moment as the actual throttle opening of the hybrid vehicle at the current moment.

[0011] Optionally, if the slope corresponding to the current moment in the pedal rate change curve is less than or equal to the reference threshold, the actual throttle opening of the hybrid vehicle remains unchanged.

[0012] Optionally, during the driving of the hybrid vehicle, if the engine of the hybrid vehicle is in a working state but the torque structure is not activated, obtain the intake air flow and throttle pressure ratio of the throttle of the hybrid vehicle, where the throttle pressure ratio refers to the ratio between the pressures on both sides of the throttle;

[0013] Based on the intake air flow of the throttle and the throttle pressure ratio, obtain the corresponding throttle opening from the stored correspondence between the intake air flow, throttle pressure ratio, and throttle opening;

[0014] Use the actual throttle opening of the hybrid vehicle at the previous moment to filter the obtained throttle opening to obtain the actual throttle opening of the hybrid vehicle at the current moment.

[0015] Optionally, the step of using the actual throttle opening of the hybrid vehicle at the previous moment to filter the obtained throttle opening to obtain the actual throttle opening of the hybrid vehicle at the current moment includes:

[0016] Use the actual throttle opening of the hybrid vehicle at the previous moment to filter the obtained throttle opening through a low-pass filter to obtain the actual throttle opening.

[0017] Optionally, the reference threshold is 0.

[0018] On the other hand, a device for determining the throttle opening of a hybrid vehicle is provided, and the device includes:

[0019] A first acquisition module, configured to obtain the pedal opening of the hybrid vehicle at the current moment if the engine of the hybrid vehicle is in a working state and the torque structure is activated during the driving of the hybrid vehicle;

[0020] A first determination module, configured to determine the pedal rate change curve of the hybrid vehicle, where the pedal rate change curve characterizes the change rate of the pedal opening of the hybrid vehicle at different moments;

[0021] A second determination module, configured to, if the slope corresponding to the current moment in the pedal rate change curve is greater than the reference threshold, determine the required torque of the hybrid vehicle at the current moment based on the pedal opening of the hybrid vehicle at the current moment;

[0022] A third determination module, configured to determine a required throttle opening degree of the hybrid vehicle at the current moment based on a required torque of the hybrid vehicle at the current moment;

[0023] A fourth determination module, configured to determine the required throttle opening degree of the hybrid vehicle at the current moment as the actual throttle opening degree of the hybrid vehicle at the current moment.

[0024] Optionally, the device further includes:

[0025] A holding module, configured to keep the actual throttle opening degree of the hybrid vehicle unchanged if a slope corresponding to the current moment in the pedal rate change curve is less than or equal to the reference threshold.

[0026] Optionally, the device further includes:

[0027] A second acquisition module, configured to acquire an intake air flow rate and a throttle pressure ratio of a throttle of the hybrid vehicle during a running process of the hybrid vehicle if an engine of the hybrid vehicle is in a working state but a torque structure is not activated, where the throttle pressure ratio is a ratio between pressures on two sides of the throttle;

[0028] A third acquisition module, configured to acquire a corresponding throttle opening degree from a stored corresponding relationship among the intake air flow rate, the throttle pressure ratio, and the throttle opening degree based on the intake air flow rate of the throttle and the throttle pressure ratio;

[0029] A filtering module, configured to filter the acquired throttle opening degree by using an actual throttle opening degree of the hybrid vehicle at a previous moment to obtain an actual throttle opening degree of the hybrid vehicle at the current moment.

[0030] Optionally, the filtering module is specifically configured to:

[0031] Filter the acquired throttle opening degree by using the actual throttle opening degree of the hybrid vehicle at a previous moment through a low-pass filter to obtain the actual throttle opening degree.

[0032] Optionally, the reference threshold is 0.

[0033] On the other hand, a hybrid vehicle is provided, where the hybrid vehicle includes a memory and a controller, the memory is configured to store a computer program, and the controller is configured to execute the computer program stored on the memory to implement steps of the method for determining a throttle opening degree of the hybrid vehicle as described above.

[0034] On the other hand, a computer-readable storage medium is provided, in which a computer program is stored, and when the computer program is executed by a controller, the steps of the method for determining the throttle opening of the hybrid vehicle described above are implemented.

[0035] On the other hand, a computer program product including instructions is provided, and when the instructions run on a computer, the computer is caused to execute the steps of the method for determining the throttle opening of the hybrid vehicle described above.

[0036] The technical solution provided by this application can at least bring the following beneficial effects:

[0037] During the driving process of the hybrid vehicle, the hybrid vehicle determines whether to perform low-pass filtering through the pedal change rate curve, which greatly improves the coverage of the method and the robustness of the data. Moreover, this method reduces the situation of sudden changes in the throttle opening during the driving process of the hybrid vehicle, thereby reducing torque mutations, avoiding problems such as jitter and jerk of the hybrid vehicle in the forward direction, improving the subjective feeling of users, and reducing user complaints. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0039] Figure 1 is a flowchart of a method for determining the throttle opening of a hybrid vehicle provided by an embodiment of this application;

[0040] Figure 2 is a schematic diagram when torque mutation occurs provided by an embodiment of this application;

[0041] Figure 3 is a schematic diagram when low-pass filtering is not performed provided by an embodiment of this application;

[0042] Figure 4 is a flowchart of another method for determining the throttle opening of a hybrid vehicle provided by an embodiment of this application;

[0043] Figure 5 is a schematic structural diagram of a device for determining the throttle opening of a hybrid vehicle provided by an embodiment of this application;

[0044] Figure 6 is a schematic structural diagram of a hybrid vehicle provided by an embodiment of this application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0045] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will further describe the implementation manners of this application in detail with reference to the accompanying drawings.

[0046] Please refer to Figure 1 , Figure 1 which is a flowchart of a method for determining the throttle opening of a hybrid vehicle provided by an embodiment of this application. The execution subject of this method can be a controller in the hybrid vehicle. Please refer to Figure 1 and this method includes the following steps.

[0047] Step 101: During the driving of the hybrid vehicle, if the engine of the hybrid vehicle is in the working state and the torque structure is activated, obtain the pedal opening of the hybrid vehicle at the current moment.

[0048] Since the hybrid vehicle has two power sources, namely the engine and the motor, before the hybrid vehicle starts to accelerate from zero to 100 kilometers per hour, the engine does not work, and the motor provides power for the hybrid vehicle. When the vehicle speed and the pedal opening reach a certain value, the engine will be forced to work. Moreover, the torque structure does not intervene when the engine starts. After the engine starts for a period of time, it transitions from being controlled by a non-torque structure to being controlled by a torque structure. That is, the torque structure is activated after the engine has started for a period of time.

[0049] A position sensor is installed on the accelerator pedal of the electronic throttle of the hybrid vehicle. When the driver steps on the accelerator pedal of the electronic throttle, this position sensor can detect the pedal opening and send the pedal opening to the controller. Among them, the pedal opening can be the pedal stepping angle or the pedal stepping depth.

[0050] Step 102: Determine the pedal rate change curve of the hybrid vehicle, where the pedal rate change curve characterizes the change rate of the pedal opening of the hybrid vehicle at different moments.

[0051] During the process of a driver stepping on the accelerator pedal of the electronic throttle, different moments may correspond to different pedal openings. Therefore, the controller can obtain multiple different moments when the driver steps on the accelerator pedal of the electronic throttle and the pedal opening at each moment. Then, taking these multiple different moments as the horizontal axis and the pedal openings at these multiple different moments as the vertical axis, a pedal opening curve of the hybrid vehicle is plotted. The pedal opening curve characterizes the change in the pedal opening of the hybrid vehicle at different moments, and the slope of the pedal opening curve represents the rate at which the driver steps on the accelerator pedal of the electronic throttle at different moments. After that, based on this pedal opening curve, taking these multiple different moments as the horizontal axis and the rate at which the driver steps on the accelerator pedal of the electronic throttle at these multiple different moments as the vertical axis, a pedal rate change curve of the hybrid vehicle is plotted. The slope of the pedal rate change curve represents the change rate of the pedal opening at different moments.

[0052] Step 103: If the slope corresponding to the current moment in the pedal rate change curve is greater than the reference threshold, determine the required torque of the hybrid vehicle at the current moment based on the pedal opening of the hybrid vehicle at the current moment.

[0053] The slope corresponding to the current moment in the pedal rate change curve represents the change rate of the pedal opening at the current moment. When the change rate of the pedal opening is greater than the reference threshold, it indicates that the opening of the accelerator pedal of the electronic throttle is accelerating and increasing, and the required torque of the hybrid vehicle is also accelerating and increasing. Moreover, in a hybrid vehicle, the throttle valve is a controllable valve that controls the air entering the engine. After the gas enters the intake pipe, it will mix with gasoline to form a combustible mixture, which then burns and does work to provide power for the hybrid vehicle. Therefore, when the required torque of the hybrid vehicle is accelerating and increasing, the throttle valve opening determined by this required torque will also accelerate and increase. At this time, if low-pass filtering is performed on the throttle valve opening and the initial value before this filtering is set unreasonably and the filter time constant is not appropriate, it may cause the throttle valve opening to jump, and then a torque mutation may occur. Therefore, in the embodiments of the present application, in order to avoid torque mutation, when the change rate of the pedal opening is greater than the reference threshold, low-pass filtering is not performed, and the pedal opening of the hybrid vehicle at the current moment is directly obtained, and the required torque of the hybrid vehicle at the current moment is calculated based on the pedal opening of the hybrid vehicle at the current moment to provide power for the engine.

[0054] Please refer to Figure 2 , Figure 2 which is a schematic diagram when torque mutation occurs provided by the embodiments of the present application. Figure 2 The position outlined by the ellipse in is the torque when torque mutation occurs.

[0055] The reference threshold is set in advance, and in different situations, the reference threshold can be adjusted according to different requirements. For example, the reference threshold is 0, or it can be a value within a small range near 0, such as 0.2, -0.1, etc.

[0056] Optionally, if the slope corresponding to the current moment in the pedal rate change curve is less than or equal to the reference threshold, the actual throttle opening of the hybrid vehicle remains unchanged.

[0057] When the change rate of the pedal opening is equal to the reference threshold, it indicates that the rate at which the driver steps on the accelerator pedal of the electronic throttle remains unchanged; when the change rate of the pedal opening is less than the reference threshold, it indicates that the opening of the accelerator pedal of the electronic throttle is increasing during deceleration. The throttle opening of the hybrid vehicle does not jump in these two cases, and thus torque mutation does not occur. Therefore, it is only necessary to keep the actual throttle opening of the hybrid vehicle at the current moment unchanged.

[0058] Step 104: Determine the required throttle opening of the hybrid vehicle at the current moment based on the required torque of the hybrid vehicle at the current moment.

[0059] After obtaining the required torque of the hybrid vehicle at the current moment, based on this required torque, the corresponding throttle opening is determined according to relevant algorithms, that is, the required throttle opening of the hybrid vehicle at the current moment. The embodiments of the present application do not limit the relevant algorithms.

[0060] Step 105: Determine the required throttle opening of the hybrid vehicle at the current moment as the actual throttle opening of the hybrid vehicle at the current moment.

[0061] To avoid torque mutation, when the change rate of the pedal opening is greater than the reference threshold, low-pass filtering is not performed. That is, after obtaining the required throttle opening of the hybrid vehicle at the current moment calculated above, the required throttle opening is directly determined as the actual throttle opening of the hybrid vehicle at the current moment.

[0062] Please refer to Figure 3 , Figure 3 which is a schematic diagram when low-pass filtering is not performed provided by the embodiments of the present application. As Figure 3 shown, when low-pass filtering is not performed, after the torque structure is activated, the actual throttle opening, the throttle opening before filtering, and the throttle opening after filtering always remain the same, and their magnitudes are all the required throttle opening of the hybrid vehicle at the current moment. Therefore, torque mutation does not occur.

[0063] During the operation of a hybrid vehicle, if the engine of the hybrid vehicle is in a working state but the torque structure is not activated, the intake air flow rate and the throttle pressure ratio of the throttle of the hybrid vehicle are obtained. The throttle pressure ratio refers to the ratio between the pressures on both sides of the throttle. Based on the intake air flow rate and the throttle pressure ratio of the throttle, the corresponding throttle opening is obtained from the stored correspondence relationship among the intake air flow rate, the throttle pressure ratio, and the throttle opening. The actual throttle opening obtained is filtered using the actual throttle opening of the hybrid vehicle at the previous moment to obtain the actual throttle opening of the hybrid vehicle at the current moment.

[0064] When the engine of a hybrid vehicle is working and the torque structure is not activated, it is no longer possible to determine the required torque at the current moment through the accelerator pedal of the electronic throttle, and thus it is impossible to calculate the required throttle opening at the current moment. At this time, it is necessary to obtain the corresponding throttle opening by querying the correspondence relationship among the intake air flow rate, the throttle pressure ratio, and the throttle opening based on the intake air flow rate and the throttle pressure ratio of the throttle.

[0065] The size of the intake air flow rate of the throttle is adjusted by controlling the size of the throttle opening. The intake air flow rate of the throttle can be measured by an intake air flow rate sensor. A supercharger is installed in front of the throttle, and the pressure in front of the throttle is measured by a supercharger pressure sensor; an intake air pressure sensor, also known as a manifold absolute pressure sensor (MAP), is installed behind the throttle. This manifold absolute pressure sensor is used to detect the absolute pressure of the intake manifold behind the throttle, that is, the pressure behind the throttle is measured by the manifold absolute pressure sensor. The ratio between the pressures on both sides of the throttle of the hybrid vehicle is determined as the throttle pressure ratio.

[0066] The implementation process of filtering the obtained throttle opening using the actual throttle opening of the hybrid vehicle at the previous moment to obtain the actual throttle opening of the hybrid vehicle at the current moment includes: using the actual throttle opening of the hybrid vehicle at the previous moment to filter the obtained throttle opening through a low-pass filter to obtain the actual throttle opening.

[0067] When filtering the throttle opening through a low-pass filter, taking the actual throttle opening of the hybrid vehicle at the previous moment as the reference value, taking the throttle opening obtained by querying the correspondence relationship among the intake air flow rate, the throttle pressure ratio, and the throttle opening as the initial value before filtering, filtering this initial throttle opening through the filtering time constant, and determining the filtered throttle opening as the actual throttle opening of the hybrid vehicle at the current moment.

[0068] The filtering time constant affects the speed at which the throttle opening after filtering approaches the throttle opening before filtering. This filtering time constant is set in advance, and in different situations, this filtering time constant can be adjusted according to different requirements.

[0069] Next, the method provided by the embodiment of the present application will be introduced. Please refer to Figure 4 After the hybrid vehicle is powered on and ignited, it is determined whether the torque structure is activated. When the torque structure is not activated, the intake air flow rate and the throttle pressure ratio of the throttle of the hybrid vehicle are obtained. Based on the intake air flow rate and the throttle pressure ratio of the throttle, the corresponding throttle opening is obtained from the stored correspondence relationship among the intake air flow rate, the throttle pressure ratio, and the throttle opening. The actually obtained throttle opening is filtered by a low-pass filter using the actual throttle opening of the hybrid vehicle at the previous moment to obtain the actual throttle opening of the hybrid vehicle at the current moment. Figure 4

[0070] When the torque structure is activated, the pedal opening of the hybrid vehicle at the current moment is obtained, and the pedal rate change curve of the hybrid vehicle is determined. If the slope corresponding to the current moment in the pedal rate change curve is greater than the reference threshold, the required torque of the hybrid vehicle at the current moment is determined based on the pedal opening of the hybrid vehicle at the current moment. Based on the required torque of the hybrid vehicle at the current moment, the required throttle opening of the hybrid vehicle at the current moment is determined. The required throttle opening of the hybrid vehicle at the current moment is determined as the actual throttle opening of the hybrid vehicle at the current moment.

[0071] In summary, the method for determining the throttle opening of the hybrid vehicle provided by the embodiment of the present application relies on the pedal change rate curve to determine whether to perform low-pass filtering, greatly improving the coverage of the method and the robustness of the data. Moreover, this method reduces the situation where the throttle opening jumps during the driving of the hybrid vehicle, thereby reducing torque mutations, avoiding problems such as jitter and jerk of the hybrid vehicle in the forward direction, improving the subjective feeling of users, and reducing user complaints.

[0072] Figure 5 Figure 5 FIG. is a schematic structural diagram of a device for determining the throttle opening of a hybrid vehicle provided by an embodiment of the present application. The device for determining the throttle opening of the hybrid vehicle can be implemented by software, hardware, or a combination of both to become part or all of the hybrid vehicle. Please refer to FIG., the device includes: a first obtaining module 501, a first determining module 502, a second determining module 503, a third determining module 504, and a fourth determining module 505.

[0073] The first acquisition module 501 is configured to, when the engine of the hybrid vehicle is in a working state and the torque structure is activated during the running of the hybrid vehicle, acquire the pedal opening degree of the hybrid vehicle at the current moment;

[0074] The first determination module 502 is configured to determine the pedal rate change curve of the hybrid vehicle, where the pedal rate change curve characterizes the change rate of the pedal opening degree of the hybrid vehicle at different moments;

[0075] The second determination module 503 is configured to, if the slope corresponding to the current moment in the pedal rate change curve is greater than the reference threshold, determine the required torque of the hybrid vehicle at the current moment based on the pedal opening degree of the hybrid vehicle at the current moment;

[0076] The third determination module 504 is configured to determine the required throttle opening degree of the hybrid vehicle at the current moment based on the required torque of the hybrid vehicle at the current moment;

[0077] The fourth determination module 505 is configured to determine the required throttle opening degree of the hybrid vehicle at the current moment as the actual throttle opening degree of the hybrid vehicle at the current moment.

[0078] Optionally, the device further includes:

[0079] The holding module is configured to, if the slope corresponding to the current moment in the pedal rate change curve is less than or equal to the reference threshold, keep the actual throttle opening degree of the hybrid vehicle unchanged.

[0080] Optionally, the device further includes:

[0081] The second acquisition module is configured to, when the engine of the hybrid vehicle is in a working state but the torque structure is not activated during the running of the hybrid vehicle, acquire the intake air flow and the throttle pressure ratio of the throttle of the hybrid vehicle, where the throttle pressure ratio is the ratio between the pressures on both sides of the throttle;

[0082] The third acquisition module is configured to acquire the corresponding throttle opening degree from the stored correspondence relationship between the intake air flow, the throttle pressure ratio, and the throttle opening degree based on the intake air flow and the throttle pressure ratio of the throttle;

[0083] The filtering module is configured to filter the acquired throttle opening degree by using the actual throttle opening degree of the hybrid vehicle at the previous moment to obtain the actual throttle opening degree of the hybrid vehicle at the current moment.

[0084] Optionally, the filtering module is specifically configured to:

[0085] The actual throttle opening of the hybrid vehicle at the previous moment is adopted, and the obtained throttle opening is filtered through a low-pass filter to obtain the actual throttle opening.

[0086] Optionally, the reference threshold is 0.

[0087] In the embodiment of the present application, during the driving process of the hybrid vehicle, whether to perform low-pass filtering is determined through the pedal change rate curve, which greatly improves the coverage of the method and the robustness of the data. Moreover, this method reduces the situation of sudden changes in the throttle opening during the driving process of the hybrid vehicle, thereby reducing torque mutations, avoiding problems such as jitter and jerk of the hybrid vehicle in the forward direction, improving the subjective feeling of the user, and reducing user complaints.

[0088] It should be noted that: when determining the throttle opening of the hybrid vehicle provided in the above embodiment, only the division of the above-mentioned functional modules is used for illustration. In actual application, the above functions can be allocated to different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the device for determining the throttle opening of the hybrid vehicle provided in the above embodiment and the embodiment of the method for determining the throttle opening of the hybrid vehicle belong to the same concept. For the specific implementation process, please refer to the method embodiment, which will not be elaborated here.

[0089] Figure 6 FIG. 13 is a schematic structural diagram of a hybrid vehicle provided by an embodiment of the present application. The hybrid vehicle 600 includes a controller 601, a system memory 602 including a random access memory and a read only memory, and a system bus 603 connecting the system memory 602 and the controller 601. The hybrid vehicle 600 further includes a basic input / output system (I / O system) 604 for helping to transmit information between various devices, and a storage device 605 for storing an operating system, application programs, and other program modules.

[0090] The basic input / output system 604 includes a display for displaying information and an input device such as a touch panel for user input. Both the display and the input device are connected to the controller 601. The basic input / output system 604 can also be used to receive and process inputs from other devices such as touch panels. Similarly, the basic input / output system 604 also provides output to a display screen or other types of output devices.

[0091] The storage device 605 is connected to the controller 601 through a storage controller (not shown) connected to the system bus 603. The storage device 605 and its associated computer-readable medium provide non-volatile storage for the hybrid vehicle 600. That is, the storage device 605 may include a computer-readable medium (not shown) such as a hard disk or a CD-ROM drive.

[0092] Without loss of generality, computer-readable media can include computer storage media and communication media. Computer storage media includes volatile and non-volatile, removable and non-removable media implemented by any method or technology for storing information such as computer-readable instructions, data structures, program modules, or other data. Computer storage media includes RAM, ROM, EPROM, EEPROM, flash memory or other solid-state storage technologies, CD-ROM, DVD or other optical storage, magnetic tape cartridges, tapes, magnetic disk storage or other magnetic storage devices. Of course, those skilled in the art will appreciate that computer storage media is not limited to the above several. The above system memory 602 and storage device 605 can be collectively referred to as memory.

[0093] According to various embodiments of the present application, the hybrid vehicle 600 can also be run by connecting to a remote computer on the network through a network such as the Internet. That is, the hybrid vehicle 600 can be connected to the network through a network interface unit connected to the system bus 603, or in other words, a network interface unit can also be used to connect to other types of networks or remote computer systems (not shown).

[0094] The above memory further includes one or more programs, and one or more programs are stored in the memory and configured to be executed by the controller.

[0095] In some embodiments, a computer-readable storage medium is also provided, and a computer program is stored in the storage medium. When the computer program is executed by the controller, the steps of the method for determining the throttle opening of the hybrid vehicle in the above embodiments are implemented. For example, the computer-readable storage medium can be ROM, RAM, CD-ROM, magnetic tape, floppy disk, and optical data storage devices, etc.

[0096] It should be noted that the computer-readable storage medium mentioned in the embodiments of the present application can be a non-volatile storage medium, in other words, it can be a non-transitory storage medium.

[0097] It should be understood that all or part of the steps of implementing the above embodiments can be realized by software, hardware, firmware or any combination thereof. When implemented by software, it can be realized in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The computer instructions can be stored in the above computer-readable storage medium.

[0098] That is, in some embodiments, a computer program product containing instructions is also provided. When it runs on a computer, it causes the computer to execute the steps of the method for determining the throttle opening of the hybrid vehicle described above.

[0099] It should be understood that the "at least one" mentioned herein refers to one or more, and the "multiple" refers to two or more. In the description of the embodiments of the present application, unless otherwise specified, " / " means "or". For example, A / B can mean A or B; the "and / or" herein is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, in order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish the same items or similar items with basically the same functions and effects. Those skilled in the art can understand that the words such as "first" and "second" do not limit the quantity and execution order, and the words such as "first" and "second" do not necessarily limit to be different.

[0100] It should be noted that the information (including but not limited to user equipment information, user personal information, etc.), data (including but not limited to data for analysis, stored data, displayed data, etc.) and signals involved in the embodiments of the present application are all authorized by the user or fully authorized by all parties, and the collection, use and processing of the relevant data need to comply with the relevant laws, regulations and standards of the relevant countries and regions.

[0101] The above are the embodiments provided by the present application, which are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for determining the throttle opening of a hybrid vehicle, characterized in that The method includes: During the running of the hybrid vehicle, if the engine of the hybrid vehicle is in the working state and the torque structure is activated, obtain the pedal opening of the hybrid vehicle at the current moment; Determine the pedal rate change curve of the hybrid vehicle, where the pedal rate change curve characterizes the change rate of the pedal opening of the hybrid vehicle at different moments; If the slope corresponding to the current moment in the pedal rate change curve is greater than the reference threshold, determine the required torque of the hybrid vehicle at the current moment based on the pedal opening of the hybrid vehicle at the current moment; Determine the required throttle opening of the hybrid vehicle at the current moment based on the required torque of the hybrid vehicle at the current moment; Determine the required throttle opening of the hybrid vehicle at the current moment as the actual throttle opening of the hybrid vehicle at the current moment; During the running of the hybrid vehicle, if the engine of the hybrid vehicle is in the working state but the torque structure is not activated, obtain the intake air flow and throttle pressure ratio of the throttle of the hybrid vehicle, where the throttle pressure ratio refers to the ratio between the pressures on both sides of the throttle; Based on the intake air flow of the throttle and the throttle pressure ratio, obtain the corresponding throttle opening from the stored correspondence between the intake air flow, throttle pressure ratio and throttle opening; Filter the obtained throttle opening by using the actual throttle opening of the hybrid vehicle at the previous moment to obtain the actual throttle opening of the hybrid vehicle at the current moment.

2. The method according to claim 1, wherein The method further includes: If the slope corresponding to the current moment in the pedal rate change curve is less than or equal to the reference threshold, keep the actual throttle opening of the hybrid vehicle unchanged.

3. The method according to claim 1, wherein The filtering the obtained throttle opening by using the actual throttle opening of the hybrid vehicle at the previous moment to obtain the actual throttle opening of the hybrid vehicle at the current moment includes: Filter the obtained throttle opening by using the actual throttle opening of the hybrid vehicle at the previous moment through a low-pass filter to obtain the actual throttle opening.

4. The method according to any one of claims 1-3, characterized in that The reference threshold is 0.

5. A device for determining the throttle opening of a hybrid vehicle, characterized in that, The device includes: A first obtaining module, configured to obtain the pedal opening of the hybrid vehicle at the current moment during the running of the hybrid vehicle, if the engine of the hybrid vehicle is in the working state and the torque structure is activated; A first determining module, configured to determine the pedal rate change curve of the hybrid vehicle, where the pedal rate change curve characterizes the change rate of the pedal opening of the hybrid vehicle at different moments; A second determining module, configured to determine the required torque of the hybrid vehicle at the current moment based on the pedal opening of the hybrid vehicle at the current moment if the slope corresponding to the current moment in the pedal rate change curve is greater than the reference threshold; A third determining module, configured to determine the required throttle opening of the hybrid vehicle at the current moment based on the required torque of the hybrid vehicle at the current moment; A fourth determination module, configured to determine the required throttle opening of the hybrid vehicle at the current moment as the actual throttle opening of the hybrid vehicle at the current moment; A second acquisition module, configured to, during the running of the hybrid vehicle, if the engine of the hybrid vehicle is in a working state but the torque structure is not activated, acquire the intake air flow rate and the throttle pressure ratio of the throttle of the hybrid vehicle, where the throttle pressure ratio refers to the ratio between the pressures on both sides of the throttle; A third acquisition module, configured to, based on the intake air flow rate of the throttle and the throttle pressure ratio, acquire the corresponding throttle opening from the stored correspondence relationship between the intake air flow rate, the throttle pressure ratio, and the throttle opening; A filtering module, configured to filter the acquired throttle opening by using the actual throttle opening of the hybrid vehicle at the previous moment to obtain the actual throttle opening of the hybrid vehicle at the current moment.

6. The device according to claim 5, characterized in that, The device further includes: A holding module, configured to, if the slope corresponding to the current moment in the pedal rate change curve is less than or equal to the reference threshold, keep the actual throttle opening of the hybrid vehicle unchanged.

7. The device according to claim 5, characterized in that, Specifically, the filtering module is configured to: Filter the acquired throttle opening by using the actual throttle opening of the hybrid vehicle at the previous moment through a low-pass filter to obtain the actual throttle opening.

8. The device according to any one of claims 5 to 7, characterized in that The reference threshold is 0.

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