A power adjustment method, apparatus and electronic device

Abstract

The application discloses a power adjusting method and device and electronic equipment, the method determines the rotating speed interval of the engine rotating speed; in the case of determining that the engine rotating speed is in the first rotating speed interval, the first supercharging pressure and the first preset pressure are used to adjust the absorption power of the hydraulic pump; in the case of determining that the engine rotating speed is in the second rotating speed interval, the second supercharging pressure, the second preset pressure, the first injection amount and the first preset injection amount are used to adjust the absorption power of the hydraulic pump; in the case of determining that the engine rotating speed is in the third rotating speed interval, the third supercharging pressure, the third preset pressure, the second injection amount and the second preset injection amount are used to adjust the absorption power of the hydraulic pump. That is to say, the application sets the preset pressure or the preset pressure and the preset injection amount for each rotating speed interval by determining that the engine rotating speed is in different rotating speed intervals, so as to adjust the absorption power of the hydraulic pump, and accurate adjustment of the absorption power of the hydraulic pump under different rotating speed conditions is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a power adjustment method and device and electronic equipment. BACKGROUND

[0002] At present, excavators play an important role in the engineering machinery industry, and the requirement of the driver for operation comfort is higher and higher. The hydraulic power system design is based on the boost pressure to adjust the absorption power of the hydraulic pump, so as to avoid the problem that the engine speed is reduced due to the too high absorption power of the hydraulic pump, and the driver's operation feeling is poor.

[0003] However, in the prior art, only one preset pressure gear is set to adjust the absorption power of the hydraulic pump. For high speed working conditions, the preset pressure gear is too low, which leads to too much reduction of the absorption power of the hydraulic pump, and further affects the power of the engine. For low speed working conditions, the preset pressure gear is too high, which leads to the problem that the absorption power of the hydraulic pump cannot be effectively reduced, and further the engine speed cannot be effectively reduced. SUMMARY

[0004] The present application provides a power adjustment method, device and electronic equipment to solve the problem in the prior art that only one preset pressure gear is set, and the absorption power of the hydraulic pump cannot be accurately adjusted for high speed working conditions or low speed working conditions.

[0005] In a first aspect, the present application provides a power adjustment method, which comprises:

[0006] determining a speed range of an engine speed, wherein the speed range comprises a first speed range, a second speed range and a third speed range, the maximum speed of the first speed range is less than or equal to the minimum speed of the second speed range, and the maximum speed of the second speed range is less than or equal to the minimum speed of the third speed range;

[0007] in a case where it is determined that the engine speed is in the first speed range, adjusting the absorption power of the hydraulic pump based on a first boost pressure and a first preset pressure, wherein the first boost pressure is obtained within a first time length;

[0008] in a case where it is determined that the engine speed is in the second speed range, adjusting the absorption power of the hydraulic pump based on a second boost pressure, a second preset pressure, a first injection amount and a first preset injection amount, wherein the second boost pressure is obtained within a second time length;

[0009] In a case where it is determined that the engine speed is in the third speed range, the absorption power of the hydraulic pump is adjusted based on a third boost pressure, a third preset pressure, a second fuel injection amount, and a second preset fuel injection amount, wherein the third boost pressure is obtained within a third time length;

[0010] The first preset pressure is less than the second preset pressure, and the second preset pressure is less than the third preset pressure, and the first preset fuel injection amount is less than the second preset fuel injection amount.

[0011] In a possible implementation, in a case where it is determined that the engine speed is in the first speed range, the absorption power of the hydraulic pump is adjusted based on a first boost pressure and a first preset pressure, comprising:

[0012] The first boost pressure is compared with the first preset pressure;

[0013] In a case where the first boost pressure is greater than the first preset pressure, the absorption power of the hydraulic pump is reduced by a first preset power within a first change time length, and the output power of the hydraulic pump is adjusted to a first target power;

[0014] In a case where the first boost pressure is less than or equal to the first preset pressure, the boost pressure in a next first time length is updated as the first boost pressure, and the absorption power of the hydraulic pump is adjusted based on the updated first boost pressure and the first preset pressure.

[0015] In a possible implementation, in a case where it is determined that the engine speed is in the second speed range, the absorption power of the hydraulic pump is adjusted based on a second boost pressure, a second preset pressure, a first fuel injection amount, and a first preset fuel injection amount, comprising:

[0016] The second boost pressure is compared with the second preset pressure;

[0017] In a case where the second boost pressure is greater than the second preset pressure, the absorption power of the hydraulic pump is adjusted based on the first fuel injection amount and the first preset fuel injection amount;

[0018] In a case where the second boost pressure is less than or equal to the second preset pressure, the boost pressure in a next second time length is updated as the second boost pressure, and the absorption power of the hydraulic pump is adjusted based on the updated second boost pressure, the second preset pressure, the first fuel injection amount, and the first preset fuel injection amount.

[0019] In a possible implementation, the absorption power of the hydraulic pump is adjusted based on the first fuel injection amount and the first preset fuel injection amount, comprising:

[0020] compare the first injection amount with the first preset injection amount;

[0021] in a case where the first injection amount is greater than the first preset injection amount, reducing the absorption power of the hydraulic pump by a second preset power in a second change duration, and adjusting the output power of the hydraulic pump to a second target power;

[0022] in a case where the first injection amount is less than or equal to the first preset injection amount, reducing the absorption power of the hydraulic pump by a third preset power in a third change duration, and adjusting the output power of the hydraulic pump to a third target power.

[0023] In a possible implementation, the adjusting the absorption power of the hydraulic pump based on the third boost pressure, the third preset pressure, the second injection amount and the second preset injection amount in a case where the engine speed is in the third speed range comprises:

[0024] comparing the third boost pressure with the third preset pressure;

[0025] in a case where the third boost pressure is greater than the third preset pressure, adjusting the absorption power of the hydraulic pump based on the second injection amount and the second preset injection amount;

[0026] in a case where the third boost pressure is less than or equal to the third preset pressure, updating the boost pressure in a next third duration as the third boost pressure, and adjusting the absorption power of the hydraulic pump based on the updated third boost pressure, the third preset pressure, the second injection amount and the second preset injection amount.

[0027] In a possible implementation, the adjusting the absorption power of the hydraulic pump based on the second injection amount and the second preset injection amount comprises:

[0028] comparing the second injection amount with the second preset injection amount;

[0029] in a case where the second injection amount is greater than the second preset injection amount, reducing the absorption power of the hydraulic pump by a fourth preset power in a fourth change duration, and adjusting the output power of the hydraulic pump to a fourth target power;

[0030] in a case where the second injection amount is less than or equal to the second preset injection amount, reducing the absorption power of the hydraulic pump by a fifth preset power in a fifth change duration, and adjusting the output power of the hydraulic pump to a fifth target power.

[0031] In a second aspect, the application provides a power adjusting device, comprising:

[0032] determining a rotation speed interval of the engine rotation speed, wherein the rotation speed interval comprises a first rotation speed interval, a second rotation speed interval and a third rotation speed interval, a maximum rotation speed of the first rotation speed interval is less than or equal to a minimum rotation speed of the second rotation speed interval, a maximum rotation speed of the second rotation speed interval is less than or equal to a minimum rotation speed of the third rotation speed interval;

[0033] adjusting, by the processing module, the absorption power of the hydraulic pump based on a first boost pressure and a first preset pressure when it is determined that the engine rotation speed is in the first rotation speed interval, wherein the first boost pressure is obtained within a first time length; adjusting, by the processing module, the absorption power of the hydraulic pump based on a second boost pressure, a second preset pressure, a first injection amount and a first preset injection amount when it is determined that the engine rotation speed is in the second rotation speed interval, wherein the second boost pressure is obtained within a second time length; adjusting, by the processing module, the absorption power of the hydraulic pump based on a third boost pressure, a third preset pressure, a second injection amount and a second preset injection amount when it is determined that the engine rotation speed is in the third rotation speed interval, wherein the third boost pressure is obtained within a third time length;

[0034] wherein the first preset pressure is less than the second preset pressure, the second preset pressure is less than the third preset pressure, and the first preset injection amount is less than the second preset injection amount.

[0035] In a possible implementation, the processing module is specifically configured to:

[0036] compare the first boost pressure with the first preset pressure;

[0037] when the first boost pressure is greater than the first preset pressure, decrease the absorption power of the hydraulic pump by a first preset power within a first change time length, and adjust the output power of the hydraulic pump to a first target power;

[0038] when the first boost pressure is less than or equal to the first preset pressure, update the boost pressure in the next first time length as the first boost pressure, and adjust the absorption power of the hydraulic pump based on the updated first boost pressure and the first preset pressure.

[0039] In a possible implementation, the processing module is specifically configured to:

[0040] compare the second boost pressure with the second preset pressure;

[0041] when the second boost pressure is greater than the second preset pressure, adjust the absorption power of the hydraulic pump based on the first injection amount and the first preset injection amount;

[0042] In a case where the second boost pressure is less than or equal to the second preset pressure, the boost pressure in a next second time length is updated as the second boost pressure, and the absorption power of the hydraulic pump is adjusted based on the updated second boost pressure, the second preset pressure, the first fuel injection amount, and the first preset fuel injection amount.

[0043] In a possible implementation, the processing module is specifically configured to:

[0044] compare the first fuel injection amount with the first preset fuel injection amount;

[0045] In a case where the first fuel injection amount is greater than the first preset fuel injection amount, the absorption power of the hydraulic pump is reduced by a second preset power in a second change time length, and the output power of the hydraulic pump is adjusted to a second target power.

[0046] In a case where the first fuel injection amount is less than or equal to the first preset fuel injection amount, the absorption power of the hydraulic pump is reduced by a third preset power in a third change time length, and the output power of the hydraulic pump is adjusted to a third target power.

[0047] In a possible implementation, the processing module is specifically configured to:

[0048] compare the third boost pressure with the third preset pressure;

[0049] In a case where the third boost pressure is greater than the third preset pressure, the absorption power of the hydraulic pump is adjusted based on the second fuel injection amount and a second preset fuel injection amount;

[0050] In a case where the third boost pressure is less than or equal to the third preset pressure, the boost pressure in a next third time length is updated as the third boost pressure, and the absorption power of the hydraulic pump is adjusted based on the updated third boost pressure, the third preset pressure, the second fuel injection amount, and the second preset fuel injection amount.

[0051] In a possible implementation, the processing module is specifically configured to:

[0052] compare the second fuel injection amount with the second preset fuel injection amount;

[0053] In a case where the second fuel injection amount is greater than the second preset fuel injection amount, the absorption power of the hydraulic pump is reduced by a fourth preset power in a fourth change time length, and the output power of the hydraulic pump is adjusted to a fourth target power.

[0054] In a case that the second fuel injection amount is less than or equal to the second preset fuel injection amount, the absorption power of the hydraulic pump is reduced by a fifth preset power in a fifth change duration, and the output power of the hydraulic pump is adjusted to a fifth target power.

[0055] In a third aspect, the present application provides an electronic device, comprising a memory and a processor, wherein:

[0056] The memory is configured to store a computer program.

[0057] The processor is configured to execute the computer program to perform the following steps:

[0058] determining a speed range of an engine speed, wherein the speed range comprises a first speed range, a second speed range and a third speed range, the maximum speed of the first speed range is less than or equal to the minimum speed of the second speed range, and the maximum speed of the second speed range is less than or equal to the minimum speed of the third speed range;

[0059] in a case that the engine speed is determined to be in the first speed range, adjusting the absorption power of the hydraulic pump based on a first boost pressure and a first preset pressure, wherein the first boost pressure is obtained in a first duration;

[0060] in a case that the engine speed is determined to be in the second speed range, adjusting the absorption power of the hydraulic pump based on a second boost pressure, a second preset pressure, a first fuel injection amount and a first preset fuel injection amount, wherein the second boost pressure is obtained in a second duration;

[0061] in a case that the engine speed is determined to be in the third speed range, adjusting the absorption power of the hydraulic pump based on a third boost pressure, a third preset pressure, a second fuel injection amount and a second preset fuel injection amount, wherein the third boost pressure is obtained in a third duration;

[0062] wherein the first preset pressure is less than the second preset pressure, the second preset pressure is less than the third preset pressure, and the first preset fuel injection amount is less than the second preset fuel injection amount.

[0063] The present application has the following advantages:

[0064] The embodiment of the present application provides a power regulation method, device and electronic equipment, the method determines a speed interval of an engine speed, wherein the speed interval comprises a first speed interval, a second speed interval and a third speed interval, the maximum speed of the first speed interval is less than or equal to the minimum speed of the second speed interval, and the maximum speed of the second speed interval is less than or equal to the minimum speed of the third speed interval; in the case that the engine speed is determined to be in the first speed interval, the absorption power of the hydraulic pump is adjusted based on a first supercharging pressure and a first preset pressure, wherein the first supercharging pressure is obtained within a first time length; in the case that the engine speed is determined to be in the second speed interval, the absorption power of the hydraulic pump is adjusted based on a second supercharging pressure, a second preset pressure, a first injection amount and a first preset injection amount, wherein the second supercharging pressure is obtained within a second time length; in the case that the engine speed is determined to be in the third speed interval, the absorption power of the hydraulic pump is adjusted based on a third supercharging pressure, a third preset pressure, a second injection amount and a second preset injection amount, wherein the third supercharging pressure is obtained within a third time length; wherein the first preset pressure is less than the second preset pressure, the second preset pressure is less than the third preset pressure, and the first preset injection amount is less than the second preset injection amount. That is, the present application sets the preset pressure or the preset pressure and the preset injection amount for each speed interval by determining that the engine speed is in different speed intervals, so as to adjust the absorption power of the hydraulic pump, and accurately adjusts the absorption power of the hydraulic pump under different speed conditions. BRIEF DESCRIPTION OF DRAWINGS

[0065] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0066] Figure 1 A flowchart of a power regulation method provided by the embodiment of the present application is shown in the figure;

[0067] Figure 2 A flowchart of another power regulation method provided by the embodiment of the present application is shown in the figure;

[0068] Figure 3 A flowchart of another power regulation method provided by the embodiment of the present application is shown in the figure;

[0069] Figure 4 A flowchart of another power regulation method provided by the embodiment of the present application is shown in the figure;

[0070] Figure 5 A structural diagram of a power regulation device provided by the embodiment of the present application is shown in the figure;

[0071] Figure 6 FIG. 1 is a structural schematic diagram of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0072] In order to make the objects, technical solutions and advantages of the present application clearer, the following will further describe the present application with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0073] In the description of the embodiments of the present application, the terms "first", "second" are only used for descriptive purposes, and cannot be understood as implying or suggesting relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features.

[0074] The preferred embodiments of the present application are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application, and the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0075] At present, excavators play an important role in the engineering machinery industry, and the drivers have higher and higher requirements for operation comfort. The hydraulic power system design is based on the boost pressure to adjust the absorption power of the hydraulic pump, so as to avoid the problem that the engine speed is reduced due to the too high absorption power of the hydraulic pump, resulting in poor operation feeling of the driver.

[0076] However, in the prior art, only one preset pressure gear is set to adjust the absorption power of the hydraulic pump. For high speed working conditions, the preset pressure gear is too low, resulting in too much reduction of the absorption power of the hydraulic pump. For low speed working conditions, the preset pressure gear is too high, resulting in the problem that the absorption power of the hydraulic pump cannot be effectively reduced, and the absorption power of the hydraulic pump is not adjusted in time.

[0077] Based on the above problems, the present application provides a power adjustment method, as shown in Figure 1 FIG. 2 is a flowchart of a power adjustment method according to an embodiment of the present application. The steps are as follows:

[0078] S101, determine the speed range of the engine speed, wherein the speed range includes a first speed range, a second speed range and a third speed range, the maximum speed of the first speed range is less than or equal to the minimum speed of the second speed range, and the maximum speed of the second speed range is less than or equal to the minimum speed of the third speed range;

[0079] For example, the first rotation speed interval can be 800-1200 rpm, the second rotation speed interval can be 1200-1400 rpm, and the third rotation speed interval can be 1400-1700 rpm.

[0080] In a case where it is determined that the engine rotation speed is in the first rotation speed interval, the absorption power of the hydraulic pump is adjusted based on a first boost pressure and a first preset pressure, wherein the first boost pressure is obtained within a first time length.

[0081] In a case where it is determined that the engine rotation speed is in the second rotation speed interval, the absorption power of the hydraulic pump is adjusted based on a second boost pressure, a second preset pressure, a first injection amount, and a first preset injection amount, wherein the second boost pressure is obtained within a second time length.

[0082] In a case where it is determined that the engine rotation speed is in the third rotation speed interval, the absorption power of the hydraulic pump is adjusted based on a third boost pressure, a third preset pressure, a second injection amount, and a second preset injection amount, wherein the third boost pressure is obtained within a third time length.

[0083] The first preset pressure is less than the second preset pressure, the second preset pressure is less than the third preset pressure, and the first preset injection amount is less than the second preset injection amount.

[0084] An embodiment of the present application provides a power regulation method and device. The method determines an engine speed range, wherein the speed range includes a first speed range, a second speed range, and a third speed range, wherein the maximum speed of the first speed range is less than or equal to the minimum speed of the second speed range, and the maximum speed of the second speed range is less than or equal to the minimum speed of the third speed range. When the engine speed is determined to be in the first speed range, the absorbed power of a hydraulic pump is adjusted based on a first boost pressure and a first preset pressure, wherein the first boost pressure is obtained within a first time period. When the engine speed is determined to be in the second speed range, the absorbed power of the hydraulic pump is adjusted based on a second boost pressure, a second preset pressure, a first fuel injection amount, and a first preset fuel injection amount, wherein the second boost pressure is obtained within a second time period. When the engine speed is determined to be in the third speed range, the absorbed power of the hydraulic pump is adjusted based on a third boost pressure, a third preset pressure, a second fuel injection amount, and a second preset fuel injection amount, wherein the third boost pressure is obtained within a third time period. The first preset pressure is less than the second preset pressure, the second preset pressure is less than the third preset pressure, and the first preset fuel injection amount is less than the second preset fuel injection amount. That is to say, the present application determines that the engine speed is in different speed ranges, sets a preset pressure for each speed range, or sets a preset pressure and a preset injection amount, thereby adjusting the absorption power of the hydraulic pump and realizing accurate adjustment of the absorption power of the hydraulic pump under different speed conditions.

[0085] Specifically, the numerical values ​​of the first duration, the second duration and the third duration may be equal or unequal, wherein the first duration, the second duration and the third duration are pre-set, and the first duration, the second duration and the third duration are determined based on the engine speed, the vehicle working mode and the vehicle operating status.

[0086] For example, the first duration may be greater than the second duration, the second duration may be greater than the third duration, the first duration may be greater than the second duration, the second duration may be greater than the third duration, the second duration may be greater than the first duration, the first duration may be greater than the third duration, the second duration may be greater than the third duration, the third duration may be greater than the first duration, the first duration may be greater than the second duration, the third duration may be greater than the second duration, the second duration may be greater than the first duration. It should be noted that the embodiments described herein are only used to illustrate and explain the present application and are not used to limit the present application.

[0087] In one possible implementation, Figure 2 FIG. 1 is a flow chart of another power regulation method provided in an embodiment of the present application. When it is determined that the engine speed is in the first speed range, the absorbed power of the hydraulic pump is regulated based on the first boost pressure and the first preset pressure. The steps are as follows:

[0088] S201, determining whether the first boost pressure is greater than the first preset pressure, if so, executing S202, otherwise executing S203;

[0089] S202: Within a first change duration, reducing the absorbed power of the hydraulic pump by a first preset power, and adjusting the output power of the hydraulic pump to a first target power;

[0090] S203 : updating the boost pressure in the next first time period to the first boost pressure, and adjusting the absorption power of the hydraulic pump based on the updated first boost pressure and the first preset pressure.

[0091] In a specific embodiment, the first boost pressure P-1 is compared with the first preset pressure P1; when the first boost pressure P-1 is greater than the first preset pressure P1, it is determined that the boost pressure is larger in a short period of time, which will cause the engine speed to drop. Therefore, within the first change time t1n, the absorption power of the hydraulic pump is reduced by the first preset power P1n, and the output power of the hydraulic pump is adjusted to the first target power, so as to accurately adjust the absorption power of the hydraulic pump and avoid excessive drop in the engine speed.

[0092] If the first boost pressure P-1 is less than or equal to the first preset pressure P1, the pressure change within the next first time period t1 is continuously determined, the boost pressure within the next first time period t1 is updated to the first boost pressure P-1, and the absorbed power of the hydraulic pump is adjusted based on the updated first boost pressure P-1 and the first preset pressure P1. The first target power is preset.

[0093] For example, if the first preset pressure P1 is 100 Pa, the first time duration t1 is 10 seconds, the first preset power P1n is 3 kW, and the first change time duration t1n is 1.5 seconds, and the first boost pressure obtained during the first time duration is 110 Pa, then the first boost pressure P-1 is determined to be greater than the first preset pressure P1, indicating that the boost pressure is high in a short period of time, and the absorbed power of the hydraulic pump is reduced by the first preset power of 3 kW within 1.5 seconds. If the first boost pressure obtained during the time duration is 90 Pa, then the first boost pressure P-1 is determined to be less than the first preset pressure P1, and the pressure change within the next first time duration t1 is determined.

[0094] In one possible implementation, Figure 3 FIG. 1 is a flow chart of another power regulation method provided in an embodiment of the present application. When it is determined that the engine speed is in the second speed range, the absorbed power of the hydraulic pump is regulated based on the second boost pressure, the second preset pressure, the first injection amount, and the first preset injection amount. The specific steps are as follows:

[0095] S301, determine whether the second boost pressure is greater than the second preset pressure, if yes, execute S302, otherwise, execute S303;

[0096] S302, determine whether the first injection amount is greater than the first preset injection amount, if yes, execute S304, otherwise, execute S305;

[0097] S303, update the boost pressure in the next second time length as the second boost pressure, based on the updated second boost pressure, the second preset pressure, the first injection amount and the first preset injection amount, adjust the absorption power of the hydraulic pump.

[0098] S304, in the second change time length, reduce the absorption power of the hydraulic pump by the second preset power, and adjust the output power of the hydraulic pump to the second target power;

[0099] S305, in the third change time length, reduce the absorption power of the hydraulic pump by the third preset power, and adjust the output power of the hydraulic pump to the third target power.

[0100] Wherein, the second change time length t2n and the third change time length t3n are preset, the numerical value of the second change time length t2n and the third change time length t3n can be equal or not equal, wherein, the second change time length t2n and the third change time length t3n are determined based on the demand of the absorption power of the hydraulic pump, and the power performance and boost pressure value of the engine in the current speed range. For example, the second change time length t2n can be greater than the third change time length t3n, or the third change time length t3n can be less than the second change time length t2n.

[0101] The second preset power P2n and the third preset power P3n are preset, the numerical value of the second preset power P2n and the third preset power P3n can be equal or not equal, wherein, the second preset power P2n and the third preset power P3n are determined based on the demand of the absorption power of the hydraulic pump, and the power performance and boost pressure value of the engine in the current speed range. For example, the second preset power P2n can be greater than the third preset power P3n, or the third preset power P3n can be less than the second preset power P2n.

[0102] It should be noted that the first injection amount C-1 is the maximum injection amount in the second time length.

[0103] In specific embodiments, the second boost pressure P-2 is compared with the second preset pressure P2; in the case that the second boost pressure P-2 is greater than the second preset pressure P2, based on the first injection amount C-1 and the first preset injection amount C1, the absorption power of the hydraulic pump is adjusted;

[0104] Specifically, the first injection amount C-1 is compared with the first preset injection amount C1; in the case that the first injection amount C-1 is greater than the first preset injection amount, the absorption power of the hydraulic pump is reduced by the second preset power P2n within the second change duration t2n, and the output power of the hydraulic pump is adjusted to the second target power; in the case that the first injection amount C-1 is less than or equal to the first preset injection amount C1, the absorption power of the hydraulic pump is reduced by the third preset power P3n within the third change duration t3n, and the output power of the hydraulic pump is adjusted to the third target power.

[0105] In the case that the second boost pressure P-2 is less than or equal to the second preset pressure P2, the boost pressure in the next second duration t2n is updated to the second boost pressure P-2, and the absorption power of the hydraulic pump is adjusted based on the updated second boost pressure P-2, the second preset pressure P2, the first injection amount C-1 and the first preset injection amount C1.

[0106] For example, if the second preset pressure P2 is 150 Pa, the second duration t2 is 5 s, the second preset power P2n is 1.5 kW, the second change duration t2n is 2.5 s, the third preset power P3n is 1.7 kW, the third change duration t3n is 1.8 s, and the first preset injection amount is 500 mL.

[0107] In a possible implementation, if the second boost pressure P-2 obtained in the second duration t2 is 180 Pa, it is determined that the boost pressure is relatively large in a short time, the first injection amount C-1 is compared with the first preset injection amount C1, and if the first injection amount is 240 mL, it is determined that the first injection amount C-1 is less than the first preset injection amount C1, and the absorption power of the hydraulic pump is reduced by the third preset power 1.7 kW within the third change duration 1.8 s.

[0108] In a possible implementation, if the second boost pressure P-2 obtained in the second duration t2 is 180 Pa, it is determined that the boost pressure is relatively large in a short time, the first injection amount C-1 is compared with the first preset injection amount C1, and if the first injection amount is 620 mL, it is determined that the first injection amount C-1 is greater than the first preset injection amount C1, and the absorption power of the hydraulic pump is reduced by the second preset power 1.5 kW within the second change duration 2.5 s.

[0109] In a possible implementation, if the second boost pressure P-2 obtained in the second duration t2 is 70 Pa, it is determined that the second boost pressure P-2 is less than the second preset pressure P2, and the pressure change in the next second duration t2 is continued to be determined.

[0110] In a possible implementation, as Figure 4Fig. 4 shows a flowchart of another power adjustment method provided by the embodiments of the present application. When it is determined that the engine speed is in the third speed range, the absorption power of the hydraulic pump is adjusted based on the third boost pressure, the third preset pressure, the second fuel injection amount and the second preset fuel injection amount. The specific steps are as follows:

[0111] S401, it is determined whether the third boost pressure is greater than the third preset pressure. If yes, S402 is performed. Otherwise, S403 is performed.

[0112] S402, it is determined whether the second fuel injection amount is greater than the second preset fuel injection amount. If yes, S404 is performed. Otherwise, S405 is performed.

[0113] S403, the boost pressure in the next third time length is updated to the third boost pressure. The absorption power of the hydraulic pump is adjusted based on the updated third boost pressure, the third preset pressure, the second fuel injection amount and the second preset fuel injection amount.

[0114] S404, in the fourth change time length, the absorption power of the hydraulic pump is reduced by the fourth preset power, and the output power of the hydraulic pump is adjusted to the fourth target power.

[0115] S405, in the fifth change time length, the absorption power of the hydraulic pump is reduced by the fifth preset power, and the output power of the hydraulic pump is adjusted to the fifth target power.

[0116] The fourth change time length t4n and the fifth change time length t5n are preset. The values of the fourth change time length t4n and the fifth change time length t5n can be equal or not equal. For example, the fourth change time length t4n can be greater than the fifth change time length t5n, or the fourth change time length t4n can be less than the fifth change time length t5n.

[0117] The fourth preset power P4n and the fifth preset power P5n are preset. The values of the fourth preset power P4n and the fifth preset power P5n can be equal or not equal. For example, the fourth preset power P4n can be greater than the fifth preset power P5n, or the fourth preset power P4n can be less than the fifth preset power P5n.

[0118] In specific embodiments, the third boost pressure P-3 is compared with the third preset pressure P3. In the case where the third boost pressure P-3 is greater than the third preset pressure P3, the absorption power of the hydraulic pump is adjusted based on the second fuel injection amount C-2 and the second preset fuel injection amount C2.

[0119] Specifically, the second injection amount C-2 is compared with the second preset injection amount C2; in the case that the second injection amount C-2 is greater than the second preset injection amount C2, the absorption power of the hydraulic pump is reduced by the fourth preset power P4n within the fourth change duration t4n, and the output power of the hydraulic pump is adjusted to the fourth target power; in the case that the second injection amount C-2 is less than or equal to the second preset injection amount C2, the absorption power of the hydraulic pump is reduced by the fifth preset power P5n within the fifth change duration t5n, and the output power of the hydraulic pump is adjusted to the fifth target power.

[0120] In the case that the third boost pressure P-3 is less than or equal to the third preset pressure P3, the boost pressure in the next third duration t3n is updated as the third boost pressure P-3, and the absorption power of the hydraulic pump is adjusted based on the updated third boost pressure P-3, the third preset pressure P3, the second injection amount C-2 and the second preset injection amount C2.

[0121] For example, if the third preset pressure P3 is 250 Pa, the third duration t3 is 20 s, the fourth preset power P4n is 0.8 kW, the fourth change duration t4n is 1.7 s, the fifth preset power P5n is 3.5 kW, and the fifth change duration t5n is 1.2 s, the second preset injection amount C2 is 250 mL.

[0122] In one possible implementation, if the third boost pressure P-3 obtained in the third duration t3 is 350 Pa, it is determined that the boost pressure is relatively large in a short time, the second injection amount C-2 is compared with the second preset injection amount C2, if the second injection amount C-2 is 150 mL, it is determined that the second injection amount C-2 is less than the second preset injection amount C2, and the absorption power of the hydraulic pump is reduced by the fifth preset power 1.7 kW within the fifth change duration 1.2 s.

[0123] In another possible implementation, if the third boost pressure P-3 obtained in the third duration t3 is 350 Pa, it is determined that the boost pressure is relatively large in a short time, the second injection amount C-2 is compared with the second preset injection amount C2, if the first injection amount is 350 mL, the second injection amount C-2 is greater than the second preset injection amount C2, and the absorption power of the hydraulic pump is reduced by the fourth preset power 0.8 kW within the fourth change duration 1.7 s.

[0124] In another possible implementation, if the third boost pressure P-3 obtained in the third duration t3 is 100 Pa, it is determined that the third boost pressure P-3 is less than the third preset pressure P3, and the pressure change in the next third duration t3 is continued to be determined.

[0125] Based on the same inventive concept, an embodiment of the present application also provides a power regulation device, the principle of which is similar to the principle of which the above-mentioned power regulation method solves the problem, and the repeated parts will not be repeated.

[0126] like Figure 5 FIG. 1 is a schematic diagram of a power regulation device according to an embodiment of the present application, comprising:

[0127] a determination module 501 for determining an engine speed range, wherein the speed range includes a first speed range, a second speed range, and a third speed range, wherein the maximum speed of the first speed range is less than or equal to the minimum speed of the second speed range, and the maximum speed of the second speed range is less than or equal to the minimum speed of the third speed range;

[0128] The processing module 502 is configured to, when it is determined that the engine speed is in a first speed range, adjust the absorbed power of the hydraulic pump based on a first boost pressure and a first preset pressure, wherein the first boost pressure is obtained within a first time period; when it is determined that the engine speed is in a second speed range, adjust the absorbed power of the hydraulic pump based on a second boost pressure, a second preset pressure, a first fuel injection amount, and a first preset fuel injection amount, wherein the second boost pressure is obtained within a second time period; and when it is determined that the engine speed is in a third speed range, adjust the absorbed power of the hydraulic pump based on a third boost pressure, a third preset pressure, a second fuel injection amount, and a second preset fuel injection amount, wherein the third boost pressure is obtained within a third time period;

[0129] The first preset pressure is smaller than the second preset pressure, the second preset pressure is smaller than the third preset pressure, and the first preset fuel injection amount is smaller than the second preset fuel injection amount.

[0130] The embodiment of the present application provides a power adjusting method and device, a rotating speed interval of an engine rotating speed is determined, wherein the rotating speed interval comprises a first rotating speed interval, a second rotating speed interval and a third rotating speed interval, the maximum rotating speed of the first rotating speed interval is less than or equal to the minimum rotating speed of the second rotating speed interval, the maximum rotating speed of the second rotating speed interval is less than or equal to the minimum rotating speed of the third rotating speed interval; in the case that the engine rotating speed is determined to be in the first rotating speed interval, the absorption power of the hydraulic pump is adjusted based on a first supercharging pressure and a first preset pressure, wherein the first supercharging pressure is obtained within a first time length; in the case that the engine rotating speed is determined to be in the second rotating speed interval, the absorption power of the hydraulic pump is adjusted based on a second supercharging pressure, a second preset pressure, a first fuel injection amount and a first preset fuel injection amount, wherein the second supercharging pressure is obtained within a second time length; in the case that the engine rotating speed is determined to be in the third rotating speed interval, the absorption power of the hydraulic pump is adjusted based on a third supercharging pressure, a third preset pressure, a second fuel injection amount and a second preset fuel injection amount, wherein the third supercharging pressure is obtained within a third time length; wherein the first preset pressure is less than the second preset pressure, the second preset pressure is less than the third preset pressure, and the first preset fuel injection amount is less than the second preset fuel injection amount. That is, by determining that the engine rotating speed is in different rotating speed intervals, the preset pressure or the preset pressure and the preset fuel injection amount are set for each rotating speed interval, so that the absorption power of the hydraulic pump is adjusted, and the absorption power of the hydraulic pump is accurately adjusted under different rotating speed conditions.

[0131] In a possible implementation, the processing module 502 is specifically configured to:

[0132] compare the first supercharging pressure with the first preset pressure;

[0133] in the case that the first supercharging pressure is greater than the first preset pressure, the absorption power of the hydraulic pump is reduced by a first preset power within a first change time length, and the output power of the hydraulic pump is adjusted to a first target power;

[0134] in the case that the first supercharging pressure is less than or equal to the first preset pressure, the supercharging pressure in the next first time length is updated as the first supercharging pressure, and the absorption power of the hydraulic pump is adjusted based on the updated first supercharging pressure and the first preset pressure.

[0135] In a possible implementation, the processing module 502 is specifically configured to:

[0136] compare the second supercharging pressure with the second preset pressure;

[0137] in the case that the second supercharging pressure is greater than the second preset pressure, the absorption power of the hydraulic pump is adjusted based on the first fuel injection amount and the first preset fuel injection amount;

[0138] In a case where the second boost pressure is less than or equal to the second preset pressure, the boost pressure in a next second time length is updated as the second boost pressure, and the absorption power of the hydraulic pump is adjusted based on the updated second boost pressure, the second preset pressure, the first fuel injection amount, and the first preset fuel injection amount.

[0139] In a possible implementation, the processing module 502 is specifically configured to:

[0140] compare the first fuel injection amount with the first preset fuel injection amount;

[0141] in a case where the first fuel injection amount is greater than the first preset fuel injection amount, reduce the absorption power of the hydraulic pump by a second preset power in a second change time length, and adjust the output power of the hydraulic pump to a second target power;

[0142] in a case where the first fuel injection amount is less than or equal to the first preset fuel injection amount, reduce the absorption power of the hydraulic pump by a third preset power in a third change time length, and adjust the output power of the hydraulic pump to a third target power.

[0143] In a possible implementation, the processing module 502 is specifically configured to:

[0144] compare the third boost pressure with the third preset pressure;

[0145] in a case where the third boost pressure is greater than the third preset pressure, adjust the absorption power of the hydraulic pump based on the second fuel injection amount and a second preset fuel injection amount;

[0146] in a case where the third boost pressure is less than or equal to the third preset pressure, update the boost pressure in a next third time length as the third boost pressure, and adjust the absorption power of the hydraulic pump based on the updated third boost pressure, the third preset pressure, the second fuel injection amount, and the second preset fuel injection amount.

[0147] In a possible implementation, the processing module 502 is specifically configured to:

[0148] compare the second fuel injection amount with the second preset fuel injection amount;

[0149] in a case where the second fuel injection amount is greater than the second preset fuel injection amount, reduce the absorption power of the hydraulic pump by a fourth preset power in a fourth change time length, and adjust the output power of the hydraulic pump to a fourth target power;

[0150] In a case where the second fuel injection amount is less than or equal to the second preset fuel injection amount, the absorption power of the hydraulic pump is reduced by a fifth preset power in a fifth change duration, and the output power of the hydraulic pump is adjusted to a fifth target power.

[0151] Based on the same inventive concept, the embodiments of the present application also provide an electronic device, which has a similar problem-solving principle to the above-mentioned power adjustment method and device, and the repeated parts will not be described here.

[0152] As shown in Figure 6 FIG. 1 is a structural schematic diagram of an electronic device provided by an embodiment of the present application, which includes a memory 601 and a processor 602, wherein:

[0153] The memory 601 is configured to store a computer program.

[0154] The processor 602 is configured to execute the computer program to perform the following steps:

[0155] determining a speed range of an engine speed, wherein the speed range includes a first speed range, a second speed range and a third speed range, the maximum speed of the first speed range is less than or equal to the minimum speed of the second speed range, and the maximum speed of the second speed range is less than or equal to the minimum speed of the third speed range;

[0156] in a case where it is determined that the engine speed is in the first speed range, adjusting the absorption power of a hydraulic pump based on a first boost pressure and a first preset pressure, wherein the first boost pressure is obtained within a first duration;

[0157] in a case where it is determined that the engine speed is in the second speed range, adjusting the absorption power of the hydraulic pump based on a second boost pressure, a second preset pressure, a first fuel injection amount and a first preset fuel injection amount, wherein the second boost pressure is obtained within a second duration;

[0158] in a case where it is determined that the engine speed is in the third speed range, adjusting the absorption power of the hydraulic pump based on a third boost pressure, a third preset pressure, a second fuel injection amount and a second preset fuel injection amount, wherein the third boost pressure is obtained within a third duration;

[0159] wherein the first preset pressure is less than the second preset pressure, the second preset pressure is less than the third preset pressure, and the first preset fuel injection amount is less than the second preset fuel injection amount.

[0160] The embodiment of the present application provides a power adjusting method, device and electronic equipment. The method determines a rotating speed interval of an engine rotating speed, wherein the rotating speed interval comprises a first rotating speed interval, a second rotating speed interval and a third rotating speed interval, the maximum rotating speed of the first rotating speed interval is less than or equal to the minimum rotating speed of the second rotating speed interval, and the maximum rotating speed of the second rotating speed interval is less than or equal to the minimum rotating speed of the third rotating speed interval; in a case where it is determined that the engine rotating speed is in the first rotating speed interval, the absorption power of the hydraulic pump is adjusted based on a first supercharging pressure and a first preset pressure, wherein the first supercharging pressure is obtained within a first time length; in a case where it is determined that the engine rotating speed is in the second rotating speed interval, the absorption power of the hydraulic pump is adjusted based on a second supercharging pressure, a second preset pressure, a first fuel injection amount and a first preset fuel injection amount, wherein the second supercharging pressure is obtained within a second time length; in a case where it is determined that the engine rotating speed is in the third rotating speed interval, the absorption power of the hydraulic pump is adjusted based on a third supercharging pressure, a third preset pressure, a second fuel injection amount and a second preset fuel injection amount, wherein the third supercharging pressure is obtained within a third time length; and wherein the first preset pressure is less than the second preset pressure, the second preset pressure is less than the third preset pressure, and the first preset fuel injection amount is less than the second preset fuel injection amount. That is, the present application sets the preset pressure or the preset pressure and the preset fuel injection amount for each rotating speed interval by determining that the engine rotating speed is in different rotating speed intervals, so as to adjust the absorption power of the hydraulic pump, and accurately adjust the absorption power of the hydraulic pump under different rotating speed conditions.

[0161] The application is described above with reference to block and / or flow diagrams of the method, device (system) and / or computer program product according to the embodiments of the present application. It should be understood that one block of the block and / or flow diagrams and the combination of the blocks of the block and / or flow diagrams can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer and / or other programmable data processing apparatus to produce a machine, so that the instructions executed by the computer processor and / or other programmable data processing apparatus create a method for implementing the functions / acts specified in the block of the block and / or flow diagram.

[0162] Accordingly, the present application can also be implemented by hardware and / or software (including firmware, resident software, microcode, etc.). Furthermore, the present application can take the form of a computer program product on a computer-usable or computer-readable storage medium having computer-usable or computer-readable program code embodied in the medium to be used in connection with an instruction execution system. In the context of the present application, the computer-usable or computer-readable medium can be any medium that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus or device.

[0163] Obviously, many modifications and variations of the present application are possible in light of the above teachings. It is, therefore, to be understood that within the scope of the appended claims and their equivalents, the application can be practiced otherwise than as specifically described.

Claims

1. A power regulation method, characterized by, The method comprises: determining a speed range of an engine speed, wherein the speed range comprises a first speed range, a second speed range and a third speed range, a maximum speed of the first speed range is less than or equal to a minimum speed of the second speed range, a maximum speed of the second speed range is less than or equal to a minimum speed of the third speed range; in a case where it is determined that the engine speed is in the first speed range, adjusting an absorption power of a hydraulic pump based on a first boost pressure and a first preset pressure, wherein the first boost pressure is obtained within a first time length; in a case where it is determined that the engine speed is in the second speed range, adjusting the absorption power of the hydraulic pump based on a second boost pressure, a second preset pressure, a first injection amount and a first preset injection amount, wherein the second boost pressure is obtained within a second time length; in a case where it is determined that the engine speed is in the third speed range, adjusting the absorption power of the hydraulic pump based on a third boost pressure, a third preset pressure, a second injection amount and a second preset injection amount, wherein the third boost pressure is obtained within a third time length; wherein the first preset pressure is less than the second preset pressure, the second preset pressure is less than the third preset pressure, and the first preset injection amount is less than the second preset injection amount.

2. The method of claim 1, wherein, The method comprises: comparing the first boost pressure with the first preset pressure; in a case where the first boost pressure is greater than the first preset pressure, reducing the absorption power of the hydraulic pump by a first preset power within a first change time length, and adjusting an output power of the hydraulic pump to a first target power; in a case where the first boost pressure is less than or equal to the first preset pressure, updating a boost pressure within a next first time length as the first boost pressure, and adjusting the absorption power of the hydraulic pump based on the updated first boost pressure and the first preset pressure.

3. The method of claim 1, wherein, The method comprises: comparing the second boost pressure with the second preset pressure; in a case where the second boost pressure is greater than the second preset pressure, adjusting the absorption power of the hydraulic pump based on the first injection amount and the first preset injection amount; in a case where the second boost pressure is less than or equal to the second preset pressure, updating a boost pressure within a next second time length as the second boost pressure, and adjusting the absorption power of the hydraulic pump based on the updated second boost pressure, the second preset pressure, the first injection amount and the first preset injection amount.

4. The method of claim 3, wherein, The method comprises: comparing the first injection amount with the first preset injection amount; in a case where the first injection amount is greater than the first preset injection amount, adjusting the absorption power of the hydraulic pump based on the first injection amount and the first preset injection amount; and in a case where the first injection amount is less than or equal to the first preset injection amount, updating an injection amount within a next first time length as the first injection amount, and adjusting the absorption power of the hydraulic pump based on the updated first injection amount and the first preset injection amount. In a case where the first injection quantity is greater than the first preset injection quantity, the absorption power of the hydraulic pump is reduced by a second preset power in a second change duration, and the output power of the hydraulic pump is adjusted to a second target power; In a case where the first injection quantity is less than or equal to the first preset injection quantity, the absorption power of the hydraulic pump is reduced by a third preset power in a third change duration, and the output power of the hydraulic pump is adjusted to a third target power.

5. The method of claim 1, wherein, The adjusting the absorption power of the hydraulic pump based on the third boost pressure, the third preset pressure, the second injection quantity and the second preset injection quantity in a case where it is determined that the engine speed is in the third speed range comprises: comparing the third boost pressure with the third preset pressure; in a case where the third boost pressure is greater than the third preset pressure, adjusting the absorption power of the hydraulic pump based on the second injection quantity and the second preset injection quantity; in a case where the third boost pressure is less than or equal to the third preset pressure, updating the boost pressure in a next third duration as the third boost pressure, and adjusting the absorption power of the hydraulic pump based on the updated third boost pressure, the third preset pressure, the second injection quantity and the second preset injection quantity.

6. The method of claim 5, wherein, The adjusting the absorption power of the hydraulic pump based on the second injection quantity and the second preset injection quantity comprises: comparing the second injection quantity with the second preset injection quantity; in a case where the second injection quantity is greater than the second preset injection quantity, reducing the absorption power of the hydraulic pump by a fourth preset power in a fourth change duration, and adjusting the output power of the hydraulic pump to a fourth target power; in a case where the second injection quantity is less than or equal to the second preset injection quantity, reducing the absorption power of the hydraulic pump by a fifth preset power in a fifth change duration, and adjusting the output power of the hydraulic pump to a fifth target power.

7. A power conditioning device, characterized by The device comprises: a determination module configured to determine a speed range of an engine speed, wherein the speed range comprises a first speed range, a second speed range and a third speed range, a maximum speed of the first speed range is less than or equal to a minimum speed of the second speed range, and a maximum speed of the second speed range is less than or equal to a minimum speed of the third speed range; a processing module configured to, in a case where it is determined that the engine speed is in the first speed range, adjust an absorption power of a hydraulic pump based on a first boost pressure and a first preset pressure, wherein the first boost pressure is obtained in a first duration; in a case where it is determined that the engine speed is in the second speed range, adjust the absorption power of the hydraulic pump based on a second boost pressure, a second preset pressure, a first injection quantity and a first preset injection quantity, wherein the second boost pressure is obtained in a second duration; and in a case where it is determined that the engine speed is in the third speed range, adjust the absorption power of the hydraulic pump based on a third boost pressure, a third preset pressure, a second injection quantity and a second preset injection quantity, wherein the third boost pressure is obtained in a third duration. The first preset pressure is less than the second preset pressure, the second preset pressure is less than the third preset pressure, and the first preset fuel injection amount is less than the second preset fuel injection amount.

8. The apparatus of claim 7, wherein, The processing module is specifically configured to: compare the first boost pressure with the first preset pressure; in a case where the first boost pressure is greater than the first preset pressure, reduce the absorption power of the hydraulic pump by a first preset power within a first change duration, and adjust the output power of the hydraulic pump to a first target power; in a case where the first boost pressure is less than or equal to the first preset pressure, update the boost pressure in a next first duration as the first boost pressure, and adjust the absorption power of the hydraulic pump based on the updated first boost pressure and the first preset pressure.

9. The apparatus of claim 7, wherein, The processing module is specifically configured to: compare the second boost pressure with the second preset pressure; in a case where the second boost pressure is greater than the second preset pressure, adjust the absorption power of the hydraulic pump based on the first fuel injection amount and the first preset fuel injection amount; in a case where the second boost pressure is less than or equal to the second preset pressure, update the boost pressure in a next second duration as the second boost pressure, and adjust the absorption power of the hydraulic pump based on the updated second boost pressure, the second preset pressure, the first fuel injection amount and the first preset fuel injection amount.

10. An electronic device, comprising: comprise a memory and a processor, wherein: the memory is configured to store a computer program; the processor is configured to execute the computer program to perform the following steps: determine a speed range of an engine speed, wherein the speed range comprises a first speed range, a second speed range and a third speed range, a maximum speed of the first speed range is less than or equal to a minimum speed of the second speed range, and a maximum speed of the second speed range is less than or equal to a minimum speed of the third speed range; in a case where it is determined that the engine speed is in the first speed range, adjust the absorption power of the hydraulic pump based on a first boost pressure and a first preset pressure, wherein the first boost pressure is obtained within a first duration; in a case where it is determined that the engine speed is in the second speed range, adjust the absorption power of the hydraulic pump based on a second boost pressure, a second preset pressure, a first fuel injection amount and a first preset fuel injection amount, wherein the second boost pressure is obtained within a second duration; in a case where it is determined that the engine speed is in the third speed range, adjust the absorption power of the hydraulic pump based on a third boost pressure, a third preset pressure, a second fuel injection amount and a second preset fuel injection amount, wherein the third boost pressure is obtained within a third duration; The first preset pressure is less than the second preset pressure, the second preset pressure is less than the third preset pressure, and the first preset fuel injection amount is less than the second preset fuel injection amount.

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