A commercial vehicle throttle filtering method, device and equipment

Abstract

The present invention relates to the field of throttle control, and provides a method, device and equipment for filtering throttle of a commercial vehicle, the method comprising: determining whether to perform throttle filtering according to the judgment result of whether the throttle opening belongs to the throttle control interval; if throttle filtering is performed, obtaining the long throttle filtering time and the short throttle filtering time; performing long throttle filtering based on the long throttle filtering time, and performing short throttle filtering based on the short throttle filtering time; determining the throttle opening difference according to the long filtered throttle opening and the short filtered throttle opening based on the long-short filtering algorithm; switching the long-short filtering according to the difference; in the process of switching the long-short filtering, resetting the throttle opening to the original throttle opening to ensure the smoothness of the throttle change. The present invention solves the problem that the throttle filtering in the prior art is not suitable for different driving styles and the throttle is unstable under high-speed conditions, and achieves the goal of ensuring throttle stability and comfort in high-speed mode.

Description

Technical Field

[0001] The present invention relates to the technical field of throttle control, and in particular to a throttle filtering method, device and equipment for commercial vehicles. Background Art

[0002] With the continuous development of commercial vehicle technology, driving comfort and fuel economy have become important goals of vehicle design and optimization. During commercial vehicle driving, the control of throttle opening directly affects the vehicle's power output and fuel consumption. Especially in high-speed mode, how to reasonably adjust the throttle opening to meet the driver's power needs while ensuring throttle stability and comfort has become an urgent problem to be solved.

[0003] At present, there are many commercial vehicle throttle control methods on the market, including throttle filtering methods based on fixed parameters. These methods usually smooth the throttle opening through preset filtering parameters to reduce the fluctuation of the throttle pedal and improve driving comfort. However, these existing technologies often ignore the impact of different driving styles on throttle control and the special needs of throttle control under high-speed conditions.

[0004] Existing technologies are insufficient in dealing with the differences in the dynamic experience of drivers with different driving styles. As different drivers have different driving habits and needs, a single throttle filter parameter is difficult to adapt to all situations, resulting in a reduced driving experience for some drivers. In addition, under high-speed conditions, using a single filter form to process the throttle opening can easily cause throttle instability, which cannot meet energy-saving requirements and the driver's power needs. Summary of the invention

[0005] The present invention provides a throttle filtering method, device and equipment for commercial vehicles, which solves the problem that throttle filtering in the prior art is not suitable for different driving styles and throttle instability under high-speed conditions, and achieves the goal of ensuring throttle stability and comfort in high-speed mode.

[0006] The present invention provides a commercial vehicle throttle filtering method, comprising the following steps: Determining whether to perform throttle filtering according to a judgment result of whether the throttle opening degree belongs to the throttle control range; If throttle filtering is performed, a long throttle filtering time and a short throttle filtering time are obtained; a long throttle filtering is performed based on the long throttle filtering time, and a short throttle filtering is performed based on the short throttle filtering time; Based on the long-short filter algorithm, the throttle opening difference is determined according to the long-filtered throttle opening and the short-filtered throttle opening; Performing long and short filtering switching according to the difference; During the switching between long and short filtering, the throttle opening is reset to the original throttle opening to ensure the smoothness of throttle changes.

[0007] According to a commercial vehicle throttle filtering method provided by the present invention, whether to perform throttle filtering is determined according to a judgment result of whether the throttle opening belongs to a throttle control interval, specifically comprising: determining the throttle control interval, and if the throttle opening belongs to the throttle control interval, performing throttle filtering; if the throttle opening is greater than the upper limit of the throttle control interval, not processing the throttle opening; if the throttle opening is less than the lower limit of the throttle control interval, correcting the throttle opening to 0.

[0008] According to a commercial vehicle throttle filtering method provided by the present invention, the obtaining of the throttle long filtering time specifically includes: determining a filtering time coefficient according to vehicle attributes; calibrating a basic filtering time T; and determining a long filtering time according to the filtering time coefficient and the basic filtering time T.

[0009] According to a commercial vehicle throttle filtering method provided by the present invention, short filtering processing is performed on the original throttle signal in the form of PT filtering.

[0010] According to a commercial vehicle throttle filtering method provided by the present invention, the long and short filtering switching is performed according to the difference, which specifically includes: determining the absolute value of the difference; judging whether the absolute value is greater than a preset switching threshold; if it is not greater than the preset switching threshold, outputting the throttle opening according to the long filtering; if it is greater than the preset switching threshold, switching from the long filtering throttle opening output to the short filtering throttle opening output.

[0011] According to a commercial vehicle throttle filtering method provided by the present invention, the filtering time coefficient is determined according to the vehicle attributes, specifically including: determining the filtering time coefficient t1 according to the driving style; determining the filtering time coefficient t2 according to the throttle opening change rate; determining the filtering time coefficient t3 according to the vehicle speed; determining the filtering time coefficient t4 according to the throttle opening.

[0012] The present invention also provides a throttle filter device for a commercial vehicle, comprising the following modules: A throttle filter judgment module is used to determine whether to perform throttle filtering according to the judgment result of whether the throttle opening belongs to the throttle control range; A long and short filtering module, used for obtaining a long throttle filtering time and a short throttle filtering time if throttle filtering is performed; performing a long throttle filtering based on the long throttle filtering time, and performing a short throttle filtering based on the short throttle filtering time; A throttle opening difference calculation module is used to determine the throttle opening difference according to the long filter throttle opening and the short filter throttle opening based on a long and short filter algorithm; A long-short filter switching module, used for switching the long-short filter according to the difference; The throttle opening reset module is used to reset the throttle opening to the original throttle opening during the long and short filter switching process to ensure the smoothness of the throttle change.

[0013] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, any one of the commercial vehicle throttle filtering methods described above is implemented.

[0014] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the commercial vehicle throttle filtering method described in any one of the above is implemented.

[0015] The present invention also provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the computer program implements any of the above-mentioned commercial vehicle throttle filtering methods.

[0016] The present invention provides a commercial vehicle throttle filtering method, device and equipment, including the following beneficial effects: by determining whether to perform throttle filtering based on the comparison result between the throttle opening and the throttle control range, it can intelligently adapt to different driving needs. In the filtering process, by obtaining and applying the throttle long filter time and the throttle short filter time, the throttle signal is finely processed, and the driving stability and comfort are further improved. At the same time, the throttle opening difference is determined based on the long-short filter algorithm, and the long-short filter is switched accordingly, which not only ensures the smoothness of the throttle change, but also effectively avoids the driving risks that may be caused by sudden changes in the throttle. In general, the present invention significantly improves the controllability and safety of commercial vehicles in complex driving environments through intelligent filtering processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is one of the flow charts of the commercial vehicle throttle filtering method provided by the present invention.

[0019] Figure 2 This is the second flow chart of the commercial vehicle throttle filtering method provided by the present invention.

[0020] Figure 3 It is a structural schematic diagram of a throttle filter device for a commercial vehicle provided by the present invention.

[0021] Figure 4 It is a structural schematic diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] During driving, different drivers have different feelings about vehicle dynamics due to their unique driving styles. If this difference is ignored and a unified throttle filtering method is used, the driver's driving experience is likely to be reduced. Especially under high-speed conditions, using a single filtering method to deal with the throttle opening problem will not only cause throttle instability, but may also fail to meet energy-saving requirements and the driver's power needs.

[0024] Therefore, in high-speed mode, it is necessary to flexibly select different lengths of filtered throttle control methods by accurately judging the driver's power requirements. In this way, the throttle opening requested by the driver can be controlled more accurately, which not only meets the driver's power requirements but also ensures the stability of throttle changes. At the same time, this method can also effectively reduce unnecessary engine transient conditions, thereby reducing fuel consumption losses and improving overall driving efficiency and comfort.

[0025] Combine the following Figure 1-Figure 4 Embodiments of the present invention are described in detail.

[0026] Figure 1 is a flow chart of the throttle filtering method for commercial vehicles provided by the present invention, such as Figure 1 As shown, the method comprises the following steps: S110: Determine whether to perform throttle filtering according to a judgment result of whether the throttle opening belongs to a throttle control range.

[0027] According to a commercial vehicle throttle filtering method provided by the present invention, whether to perform throttle filtering is determined according to a judgment result of whether the throttle opening belongs to a throttle control interval, specifically comprising: determining the throttle control interval, and if the throttle opening belongs to the throttle control interval, performing throttle filtering; if the throttle opening is greater than the upper limit of the throttle control interval, not processing the throttle opening; if the throttle opening is less than the lower limit of the throttle control interval, correcting the throttle opening to 0.

[0028] Specifically, Figure 2The figure shows the second flow chart of the throttle filtering method for commercial vehicles provided by the present invention. A preset throttle control interval is determined, which is APP_rKDThres_C>=throttle opening>=APP_rLowFllow_C. The setting of this throttle control interval is based on comprehensive consideration of multiple factors such as vehicle power performance, driving comfort, and energy-saving requirements. Once the throttle control interval is determined, the vehicle's control system will monitor the opening changes of the throttle pedal in real time.

[0029] When the driver requests the throttle opening at high speed and the throttle opening is detected to be less than the lower limit of the throttle control range APP_rLowFllow_C, the vehicle's own resistance cannot be overcome, resulting in unnecessary energy consumption. The control system will correct the throttle to 0.

[0030] When the throttle opening is detected within the throttle control range, the control system will start the throttle filtering algorithm. The main purpose of this filtering algorithm is to smooth the throttle signal and reduce the throttle fluctuation caused by driver operation or road conditions, thereby improving driving comfort and stability. The throttle filtering algorithm can be in various forms, such as low-pass filtering, moving average filtering, etc. The specific choice depends on the actual application requirements and system performance.

[0031] If the throttle opening is detected to be greater than the upper limit of the throttle control range APP_rKDThres_C, the control system will not perform any filtering on the throttle opening. This is because at a large throttle opening, the driver usually expects the vehicle to respond quickly and provide sufficient power output. At this time, filtering may reduce the vehicle's response speed and affect the driving experience.

[0032] In summary, the commercial vehicle throttle filtering method provided by the present invention determines whether to perform throttle filtering based on the comparison result between the throttle opening and the throttle control range, which not only ensures driving comfort and stability, but also ensures that the vehicle can quickly respond to the driver's acceleration needs at a large throttle opening.

[0033] S120: If throttle filtering is performed, a long throttle filtering time and a short throttle filtering time are obtained; a long throttle filtering is performed based on the long throttle filtering time, and a short throttle filtering is performed based on the short throttle filtering time.

[0034] According to a commercial vehicle throttle filtering method provided by the present invention, a long throttle filtering time is obtained, which specifically includes: determining a filtering time coefficient according to vehicle attributes; calibrating a basic filtering time T; and determining a long filtering time according to the filtering time coefficient and the basic filtering time T.

[0035] According to a commercial vehicle throttle filtering method provided by the present invention, a filtering time coefficient is determined according to vehicle attributes, specifically including: determining a filtering time coefficient t1 according to a driving style; determining a filtering time coefficient t2 according to a throttle opening change rate; determining a filtering time coefficient t3 according to a vehicle speed; and determining a filtering time coefficient t4 according to a throttle opening.

[0036] Specifically, the determination of the long filtering time is based on four main factors: driving style, throttle opening change rate, vehicle speed, and throttle opening.

[0037] 1) Determine the filtering time coefficient t1 according to the driving style; different driving styles (such as aggressive, smooth, etc.) will affect the length of the filtering time to adapt to the driver's driving habits.

[0038] 2) Determine the filter time coefficient t2 based on the throttle opening change rate; the throttle opening change rate reflects the driver's throttle operation frequency and amplitude, which in turn affects the filter time.

[0039] 3) Determine the filter time coefficient t3 according to the vehicle speed; the vehicle speed will also affect the filter time to adapt to the power requirements under different driving conditions.

[0040] 4) Determine the filter time coefficient t4 based on the throttle opening.

[0041] 5) Calibrate the basic filtering time T as the basis for calculating the long filtering time.

[0042] Multiply the above four filter time coefficients (t1, t2, t3, t4) by the basic filter time T to get the long filter time. That is: long filter time = T * t1 * t2 * t3 * t4.

[0043] According to the calculated long filter time, the original throttle is subjected to long filter processing. Here, the PT filter method is adopted, and the filter time is performed according to the calculated long filter time.

[0044] According to a commercial vehicle throttle filtering method provided by the present invention, short filtering processing is performed on the original throttle signal in the form of PT filtering.

[0045] Specifically, the original throttle is short-filtered in the form of PT filtering, and the short-filtering time is calibrated as APP_tiShortFlt_C, which is three scheduling cycles.

[0046] S130 . Based on a long-short filter algorithm, determine a throttle opening difference according to the long-filtered throttle opening and the short-filtered throttle opening.

[0047] S140, switching between long and short filters according to the difference.

[0048] According to a commercial vehicle throttle filtering method provided by the present invention, long and short filtering are switched according to the difference, specifically including: determining the absolute value of the difference; judging whether the absolute value is greater than a preset switching threshold; if it is not greater than the preset switching threshold, outputting the throttle opening according to the long filter; if it is greater than the preset switching threshold, switching from the long filter throttle opening output to the short filter throttle opening output. A switching threshold (APP_rRealLimBModeLow_C) is preset. The calculated absolute difference is compared with the preset switching threshold.

[0049] If the absolute difference is not greater than the preset switching threshold, it means that the current throttle opening changes relatively smoothly and the driver has no urgent power demand, so the long-filtered throttle opening is output. If the absolute difference is greater than the preset switching threshold, it means that the driver has power demand and requires a faster throttle response, so the long-filtered throttle opening output is switched to the short-filtered throttle opening output to meet the driver's power demand.

[0050] S150. During the long-short filter switching process, the throttle opening is reset to the original throttle opening to ensure smooth throttle changes.

[0051] Specifically, during the switching between the long and short filters, in order to ensure the smoothness of the throttle change, the calculated throttle opening is reset to the original throttle opening during the switching process.

[0052] Through the above steps, the long and short filter switching in the commercial vehicle throttle filtering method based on driving style is realized, which not only ensures the stability of throttle changes, but also can be flexibly adjusted according to the power requirements under different driving styles, reducing unnecessary engine transient conditions and fuel consumption losses.

[0053] The throttle filter device for a commercial vehicle provided by the present invention is described below. The throttle filter device for a commercial vehicle described below and the throttle filter method for a commercial vehicle described above can be referred to each other.

[0054] like Figure 3 The present invention shows a throttle filter device for a commercial vehicle, comprising: A throttle filter determination module 310 is used to determine whether to perform throttle filtering according to a determination result of whether the throttle opening belongs to a throttle control interval; The long-short filtering module 320 is used to obtain the long throttle filtering time and the short throttle filtering time if throttle filtering is performed; perform the long throttle filtering based on the long throttle filtering time, and perform the short throttle filtering based on the short throttle filtering time; A throttle opening difference calculation module 330 is used to determine the throttle opening difference according to the long filter throttle opening and the short filter throttle opening based on a long and short filter algorithm; A long-short filter switching module 340 is used to switch the long-short filter according to the difference; The throttle opening reset module 350 is used to reset the throttle opening to the original throttle opening during the long-short filter switching process to ensure the smoothness of the throttle change.

[0055] Figure 4 An example of a physical structure diagram of an electronic device is shown in FIG. Figure 4 As shown, the electronic device may include: a processor 410, a communication interface 420, a memory 430 and a communication bus 440, wherein the processor 410, the communication interface 420 and the memory 430 communicate with each other through the communication bus 440. The processor 410 may call the logic instructions in the memory 430 to execute the throttle filtering method for commercial vehicles, the method comprising: determining whether to perform throttle filtering according to the result of determining whether the throttle opening belongs to the throttle control interval; if throttle filtering is performed, obtaining the throttle long filtering time and the throttle short filtering time; performing throttle long filtering based on the throttle long filtering time, and performing throttle short filtering based on the throttle short filtering time; determining the throttle opening difference according to the long filtering throttle opening and the short filtering throttle opening based on the long-short filtering algorithm; switching the long-short filtering according to the difference; in the long-short filtering switching process, resetting the throttle opening to the original throttle opening to ensure the smoothness of the throttle change.

[0056] In addition, the logic instructions in the above-mentioned memory 430 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods of various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0057] On the other hand, the present invention also provides a computer program product, which includes a computer program. The computer program can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the commercial vehicle throttle filtering method provided by the above methods, the method including: determining whether to perform throttle filtering based on a judgment result of whether the throttle opening belongs to a throttle control interval; if throttle filtering is performed, obtaining a long throttle filtering time and a short throttle filtering time; performing a long throttle filtering based on the long throttle filtering time, and performing a short throttle filtering based on the short throttle filtering time; based on a long-short filtering algorithm, determining a throttle opening difference based on a long-filtered throttle opening and a short-filtered throttle opening; switching between long and short filtering based on the difference; during the long-short filtering switching process, resetting the throttle opening to the original throttle opening to ensure the smoothness of the throttle change.

[0058] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to execute the commercial vehicle throttle filtering method provided by the above-mentioned methods, the method comprising: determining whether to perform throttle filtering based on a judgment result of whether the throttle opening belongs to a throttle control interval; if throttle filtering is performed, obtaining a long throttle filtering time and a short throttle filtering time; performing a long throttle filtering based on the long throttle filtering time, and performing a short throttle filtering based on the short throttle filtering time; based on a long-short filtering algorithm, determining a throttle opening difference based on a long-filtered throttle opening and a short-filtered throttle opening; switching between long and short filtering based on the difference; during the long-short filtering switching process, resetting the throttle opening to the original throttle opening to ensure the smoothness of the throttle change.

[0059] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, i.e., they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art may understand and implement it without creative effort.

[0060] Through the description of the above implementation modes, those skilled in the art can clearly understand that each implementation mode can be implemented by means of software plus a necessary general hardware platform, or of course by hardware. Based on such an understanding, the above technical solution can essentially or in other words be embodied in the form of a software product that contributes to the prior art. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a magnetic disk, an optical disk, etc., and includes a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods of each embodiment or some parts of the embodiment.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A commercial vehicle throttle filtering method, characterized in that: include: Determining whether to perform throttle filtering according to a judgment result of whether the throttle opening degree belongs to the throttle control range; If throttle filtering is performed, the throttle long filtering time and throttle short filtering time are obtained; Performing a long throttle filter based on the long throttle filter time, and performing a short throttle filter based on the short throttle filter time; Based on the long-short filter algorithm, the throttle opening difference is determined according to the long-filtered throttle opening and the short-filtered throttle opening; Performing long and short filtering switching according to the difference; During the switching between long and short filtering, the throttle opening is reset to the original throttle opening to ensure the smoothness of throttle changes.

2. The commercial vehicle throttle filtering method according to claim 1, characterized in that: The determining whether to perform throttle filtering according to the judgment result of whether the throttle opening belongs to the throttle control range specifically includes: Determine the throttle control range, and if the throttle opening belongs to the throttle control range, perform throttle filtering; If the throttle opening is greater than the upper limit of the throttle control range, the throttle opening is not processed; If the throttle opening is less than the lower limit of the throttle control range, the throttle opening is corrected to 0.

3. The commercial vehicle throttle filtering method according to claim 1, characterized in that: The obtaining of the throttle long filter time specifically includes: Determine the filter time coefficient according to the vehicle attributes; Calibrate the basic filtering time T; The long filter time is determined according to the filter time coefficient and the basic filter time T.

4. The commercial vehicle throttle filtering method according to claim 1, characterized in that: The original throttle signal is short-filtered in the form of PT filtering.

5. The commercial vehicle throttle filtering method according to claim 1, characterized in that: The switching of long and short filters according to the difference specifically includes: determining an absolute value of the difference; Determining whether the absolute value is greater than a preset switching threshold; If it is not greater than the preset switching threshold, the throttle opening is output according to the long filter; If it is greater than the preset switching threshold, the throttle opening output is switched from the long-filtered throttle opening output to the short-filtered throttle opening output.

6. The commercial vehicle throttle filtering method according to claim 3, characterized in that: Determining the filtering time coefficient according to the vehicle attributes specifically includes: Determine the filter time coefficient t1 according to the driving style; Determine the filter time coefficient t2 according to the throttle opening change rate; Determine the filter time coefficient t3 according to the vehicle speed; The filter time coefficient t4 is determined according to the throttle opening.

7. A throttle filter device for a commercial vehicle, characterized in that: include: A throttle filter judgment module is used to determine whether to perform throttle filtering according to the judgment result of whether the throttle opening belongs to the throttle control range; The long and short filtering module is used to obtain the throttle long filtering time and the throttle short filtering time if throttle filtering is performed; Performing a long throttle filter based on the long throttle filter time, and performing a short throttle filter based on the short throttle filter time; A throttle opening difference calculation module is used to determine the throttle opening difference according to the long filter throttle opening and the short filter throttle opening based on a long and short filter algorithm; A long-short filter switching module, used for switching the long-short filter according to the difference; The throttle opening reset module is used to reset the throttle opening to the original throttle opening during the long and short filter switching process to ensure the smoothness of the throttle change.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the commercial vehicle throttle filtering method according to any one of claims 1 to 6 is implemented.

9. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the commercial vehicle throttle filtering method according to any one of claims 1 to 6 is implemented.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the commercial vehicle throttle filtering method according to any one of claims 1 to 6 is implemented.

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