Power adjusting method and device and electronic equipment

Abstract

The invention discloses a power adjusting method and device and electronic equipment. The method comprises the steps that the rotating speed interval of the rotating speed of an engine is determined; under the condition 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 the first boost pressure and the first preset pressure; under the condition that the rotating speed of the engine is determined to be in the second rotating speed interval, the absorption power of the hydraulic pump is adjusted based on the second supercharging pressure, the second preset pressure, the first oil injection quantity and the first preset oil injection quantity; and under the condition that it is determined that the rotating speed of the engine is in the third rotating speed interval, the absorption power of the hydraulic pump is adjusted based on the third supercharging pressure, the third preset pressure, the second oil injection quantity and the second preset oil injection quantity. That is to say, by determining that the rotating speed of the engine is in different rotating speed intervals and setting the preset pressure or setting the preset pressure and the preset oil injection quantity for each rotating speed interval, the absorption power of the hydraulic pump is adjusted, and the absorption power of the hydraulic pump is accurately adjusted under different rotating speed working conditions.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a power regulation method, device and electronic equipment. Background Art

[0002] At present, excavators occupy a pivotal position in the construction machinery industry, and drivers have increasingly higher requirements for operating comfort. The design of the hydraulic power system is based on the boost pressure to adjust the absorption power of the hydraulic pump to avoid the problem of poor driver operating experience caused by the engine speed dropping due to excessive absorption of power by the hydraulic pump.

[0003] However, in the prior art, the absorption power of the hydraulic pump is regulated only by setting a preset pressure level. Under high-speed conditions, the preset pressure level is too low, resulting in an excessive reduction in the absorption power of the hydraulic pump, thereby affecting the power of the engine; under low-speed conditions, the preset pressure level is too high, resulting in the inability to effectively reduce the absorption power of the hydraulic pump, thereby failing to effectively reduce the engine speed. Summary of the invention

[0004] The present invention provides a power regulation method, device and electronic equipment, which are used 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 under high speed working conditions or low speed working conditions.

[0005] In a first aspect, the present application provides a power regulation method, the method comprising:

[0006] Determine a 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;

[0007] When 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 period;

[0008] When 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 time period;

[0009] When 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 time period;

[0010] Among them, 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.

[0011] In a possible implementation, when determining that the engine speed is in the first speed range, adjusting the absorption power of the hydraulic pump based on the first boost pressure and the first preset pressure includes:

[0012] comparing the first boost pressure with the first preset pressure;

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

[0014] When the first boost pressure is less than or equal to the first preset pressure, the boost pressure in the next first period of time is updated to 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, when determining that the engine speed is in the second speed range, adjusting the absorption power of the hydraulic pump based on the second boost pressure, the second preset pressure, the first injection amount, and the first preset injection amount includes:

[0016] comparing the second boost pressure with the second preset pressure;

[0017] When the second boost pressure is greater than the second preset pressure, adjusting the absorption power of the hydraulic pump based on the first fuel injection amount and the first preset fuel injection amount;

[0018] When the second boost pressure is less than or equal to the second preset pressure, the boost pressure in the next second time period is updated to 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 injection amount and the first preset injection amount.

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

[0020] comparing the first fuel injection amount with the first preset fuel injection amount;

[0021] When the first fuel injection amount is greater than the first preset fuel injection amount, within a second change time period, the absorbed power of the hydraulic pump is reduced by a second preset power, and the output power of the hydraulic pump is adjusted to a second target power;

[0022] When the first injection amount is less than or equal to the first preset injection amount, within a third change time period, the absorption power of the hydraulic pump is reduced by a third preset power, and the output power of the hydraulic pump is adjusted to a third target power.

[0023] In a possible implementation, when determining that the engine speed is in the third speed range, adjusting the absorption power of the hydraulic pump based on the third boost pressure, the third preset pressure, the second fuel injection amount, and the second preset fuel injection amount includes:

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

[0025] When 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] When the third boost pressure is less than or equal to the third preset pressure, the boost pressure in the next third time period is updated to 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 injection amount and the second preset injection amount.

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

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

[0029] When the second fuel injection amount is greater than the second preset fuel injection amount, within a fourth change time period, the absorption power of the hydraulic pump is reduced by a fourth preset power, and the output power of the hydraulic pump is adjusted to a fourth target power;

[0030] When the second fuel injection amount is less than or equal to the second preset fuel injection amount, within a fifth change time period, the absorption power of the hydraulic pump is reduced by a fifth preset power, and the output power of the hydraulic pump is adjusted to a fifth target power.

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

[0032] a determination module, configured to determine 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, 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;

[0033] A processing module, configured to adjust 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 speed is in the first speed range, wherein the first boost pressure is obtained within a first time period; to 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 when it is determined that the engine speed is in the second speed range, wherein the second boost pressure is obtained within a second time period; to 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 when it is determined that the engine speed is in the third speed range, wherein the third boost pressure is obtained within a third time period;

[0034] Among them, 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.

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

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

[0037] When the first boost pressure is greater than the first preset pressure, within a first change time period, the absorption power of the hydraulic pump is reduced by a first preset power, and the output power of the hydraulic pump is adjusted to a first target power;

[0038] When the first boost pressure is less than or equal to the first preset pressure, the boost pressure in the next first period of time is updated to 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.

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

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

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

[0042] When the second boost pressure is less than or equal to the second preset pressure, the boost pressure in the next second time period is updated to 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 injection amount and the first preset injection amount.

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

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

[0045] When the first fuel injection amount is greater than the first preset fuel injection amount, within a second change time period, the absorbed power of the hydraulic pump is reduced by a second preset power, and the output power of the hydraulic pump is adjusted to a second target power;

[0046] When the first injection amount is less than or equal to the first preset injection amount, within a third change time period, the absorption power of the hydraulic pump is reduced by a third preset power, and the output power of the hydraulic pump is adjusted to a third target power.

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

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

[0049] When 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;

[0050] When the third boost pressure is less than or equal to the third preset pressure, the boost pressure in the next third time period is updated to 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 injection amount and the second preset injection amount.

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

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

[0053] When the second fuel injection amount is greater than the second preset fuel injection amount, within a fourth change time period, the absorption power of the hydraulic pump is reduced by a fourth preset power, and the output power of the hydraulic pump is adjusted to a fourth target power;

[0054] When the second fuel injection amount is less than or equal to the second preset fuel injection amount, within a fifth change time period, the absorption power of the hydraulic pump is reduced by a fifth preset power, 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, including a memory and a processor, wherein:

[0056] The memory is used to store computer programs;

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

[0058] Determine a 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;

[0059] When 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 period;

[0060] When 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 time period;

[0061] When 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 time period;

[0062] Among them, 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.

[0063] The beneficial effects of the present invention are as follows:

[0064] The embodiment of the present application provides a power regulation method, device and electronic device, the method determines 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; when it is determined that the engine speed is in the first speed range, the absorption power of the hydraulic pump is adjusted based on the first boost pressure and the 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 the second speed range, the absorption power of the hydraulic pump is adjusted based on the second boost pressure, the second preset pressure, the first injection amount and the first preset injection amount, wherein the second boost pressure is obtained within a second time period; 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 injection amount and the second preset injection amount, wherein the third boost pressure is obtained within a third time period; 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 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, thereby achieving accurate adjustment of the absorption power of the hydraulic pump under different speed conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0066] Figure 1 A schematic diagram of a power regulation method provided in an embodiment of the present application;

[0067] Figure 2 A schematic diagram of another power regulation method provided in an embodiment of the present application;

[0068] Figure 3 A schematic diagram of another power regulation method provided in an embodiment of the present application;

[0069] Figure 4 A schematic diagram of another power regulation method provided in an embodiment of the present application;

[0070] Figure 5 A schematic diagram of the structure of a power regulation device provided in an embodiment of the present application;

[0071] Figure 6 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0072] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all 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.

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

[0074] The preferred embodiments of the present application are described below in conjunction with the drawings in the specification. 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. In addition, the embodiments and features in the embodiments of the present application may be combined with each other if there is no conflict.

[0075] At present, excavators occupy a pivotal position in the construction machinery industry, and drivers have increasingly higher requirements for operating comfort. The design of the hydraulic power system is based on the boost pressure to adjust the absorption power of the hydraulic pump to avoid the problem of poor driver operating experience caused by the engine speed dropping due to excessive absorption of power by the hydraulic pump.

[0076] However, in the prior art, the absorption power of the hydraulic pump is adjusted only by setting a preset pressure level. Under high-speed conditions, the preset pressure level is too low, resulting in excessive reduction in the absorption power of the hydraulic pump. Under low-speed conditions, the preset pressure level is too high, resulting in the inability to effectively reduce the absorption power of the hydraulic pump, thereby causing the problem of untimely adjustment of the absorption power of the hydraulic pump.

[0077] Based on the above problems, the present application provides a power regulation method, such as Figure 1 As shown, it is a flow chart of a power regulation method provided in an embodiment of the present application, and the steps are as follows:

[0078] S101, 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, 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;

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

[0080] S102, when 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 period;

[0081] S103, when it is determined that the engine speed is in the second speed range, adjusting the absorption power of the hydraulic pump based on the second boost pressure, the second preset pressure, the first fuel injection amount and the first preset fuel injection amount, wherein the second boost pressure is obtained within the second time period;

[0082] S104, when it is determined that the engine speed is in the third speed range, adjusting the absorption power of the hydraulic pump based on the third boost pressure, the third preset pressure, the second fuel injection amount and the second preset fuel injection amount, wherein the third boost pressure is obtained within a third time period;

[0083] Among them, 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.

[0084] The embodiment of the present application provides a power regulation method and device, the method determines 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; when it is determined that the engine speed is in the first speed range, the absorption power of the hydraulic pump is adjusted based on the first boost pressure and the 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 the second speed range, the absorption power of the hydraulic pump is adjusted based on the second boost pressure, the second preset pressure, the first injection amount and the first preset injection amount, wherein the second boost pressure is obtained within a second time period; 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 injection amount and the second preset injection amount, wherein the third boost pressure is obtained within a third time period; 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 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, thereby achieving accurate adjustment of the absorption power of the hydraulic pump under different speed conditions.

[0085] Specifically, the numerical values ​​of the first time length, the second time length and the third time length may be equal or unequal, wherein the first time length, the second time length and the third time length are pre-set, and the first time length, the second time length and the third time length are determined based on the engine speed, the vehicle working mode and the vehicle running 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 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 a possible implementation, Figure 2 As shown, it 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 absorption power of the hydraulic pump is adjusted 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, reducing the absorbed power of the hydraulic pump by a first preset power within a first change duration, and adjusting the output power of the hydraulic pump to a first target power;

[0090] S203: Update the boost pressure in the next first time period to 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.

[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 engine speed.

[0092] When 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 absorption 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 100Pa, the first time length t1 is 10s, the first preset power P1n is 3kW, and the first change time length t1n is 1.5s, if the first boost pressure obtained in the first time length is 110Pa, it is determined that the first boost pressure P-1 is greater than the first preset pressure P1, and the boost pressure is determined to be large in a short time, and the absorption power of the hydraulic pump is reduced by the first preset power 3kW within 1.5s. If the first boost pressure obtained in a time length is 90Pa, it is determined that the first boost pressure P-1 is less than the first preset pressure P1, and the pressure change in the next first time length t1 is determined.

[0094] In a possible implementation, Figure 3 As shown, it is a flow chart of another power regulation method provided by an embodiment of the present application. When it is determined that the engine speed is in the second speed range, the absorption power of the hydraulic pump is adjusted 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, determining whether the second boost pressure is greater than the second preset pressure, if so, executing S302, otherwise, executing S303;

[0096] S302, determining whether the first fuel injection amount is greater than a first preset fuel injection amount, if so, executing S304, otherwise, executing S305;

[0097] S303, updating the boost pressure in the next second time period to 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.

[0098] S304, reducing the absorbed power of the hydraulic pump by a second preset power within the second change time, and adjusting the output power of the hydraulic pump to a second target power;

[0099] S305 . Within a third change time period, reduce the absorbed power of the hydraulic pump by a third preset power, and adjust the output power of the hydraulic pump to a third target power.

[0100] The second change duration t2n and the third change duration t3n are preset, and the values ​​of the second change duration t2n and the third change duration t3n may be equal or unequal, wherein the second change duration t2n and the third change duration t3n are determined based on the power absorption requirement of the hydraulic pump, and the dynamic performance of the engine in the current speed range and the boost pressure value. For example, the second change duration t2n may be greater than the third change duration t3n, or the third change duration t3n may be less than the second change duration t2n.

[0101] The second preset power P2n and the third preset power P3n are preset, and the values ​​of the second preset power P2n and the third preset power P3n may be equal or unequal, wherein the second preset power P2n and the third preset power P3n are determined based on the demand for the hydraulic pump to absorb power, and the dynamic performance of the engine in the current speed range and the value of the boost pressure. For example, the second preset power P2n may be greater than the third preset power P3n, or the third preset power P3n may be less than the second preset power P2n.

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

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

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

[0105] When the second boost pressure P-2 is less than or equal to the second preset pressure P2, the boost pressure in the next second time period 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 150Pa, the second time t2 is 5s, the second preset power P2n is 1.5kW, the second change time t2n is 2.5s, the third preset power P3n is 1.7kW, the third change time t3n is 1.8s, and the first preset fuel injection amount is 500mL.

[0107] In one possible implementation, if the second boost pressure P-2 obtained in the second time period t2 is 180Pa, it is determined that the boost pressure is larger in a short time, and the first injection amount C-1 is compared with the first preset injection amount C1. If the first injection amount is 240mL, 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 of 1.7kW within the third change time period of 1.8s.

[0108] In one possible implementation, if the second boost pressure P-2 obtained in the second time period t2 is 180Pa, it is determined that the boost pressure is larger in a short time, and the first injection amount C-1 is compared with the first preset injection amount C1. If the first injection amount is 620mL, 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 of 1.5kW within the second change time period of 2.5s.

[0109] In a possible implementation, if the second boost pressure P-2 obtained in the second time period 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 time period t2 is continuously determined.

[0110] In a possible implementation, Figure 4As shown, it is a flow chart of another power regulation method provided by an embodiment 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 injection amount and the second preset injection amount. The specific steps are as follows:

[0111] S401, determining whether the third boost pressure is greater than the third preset pressure, if so, executing S402, otherwise, executing S403;

[0112] S402, determining whether the second fuel injection amount is greater than the second preset fuel injection amount, if so, executing S404, otherwise, executing S405;

[0113] S403, updating the boost pressure in the next third time period to a 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 fuel injection amount, and the second preset fuel injection amount;

[0114] S404, within a fourth change duration, reducing the absorbed power of the hydraulic pump by a fourth preset power, and adjusting the output power of the hydraulic pump to a fourth target power;

[0115] S405: Within a fifth change time period, reduce the absorbed power of the hydraulic pump by a fifth preset power, and adjust the output power of the hydraulic pump to a fifth target power.

[0116] Among them, the fourth change time length t4n and the fifth change time length t5n are pre-set, and the values ​​of the fourth change time length t4n and the fifth change time length t5n can be equal or unequal. 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 pre-set, and the values ​​of the fourth preset power P4n and the fifth preset power P5n may be equal or unequal. For example, the fourth preset power P4n may be greater than the fifth preset power P5n, or the fourth preset power P4n may be less than the fifth preset power P5n.

[0118] In a specific embodiment, the third boost pressure P-3 is compared with the third preset pressure P3; when 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 injection amount C-2 and the second preset injection amount C2;

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

[0120] When the third boost pressure P-3 is less than or equal to the third preset pressure P3, the boost pressure in the next third time period t3n is updated to 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 250Pa, the third time t3 is 20s, the fourth preset power P4n is 0.8kW, the fourth change time t4n is 1.7s, the fifth preset power P5n is 3.5kW, the fifth change time t5n is 1.2s, and the second preset fuel injection amount C2 is 250mL.

[0122] In one possible implementation, if the third boost pressure P-3 obtained in the third time period t3 is 350Pa, it is determined that the boost pressure is larger in a short time, and the second injection amount C-2 is compared with the second preset injection amount C2. If the second injection amount C-2 is 150mL, 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 of 1.7kW within the fifth change time period of 1.2s.

[0123] In another possible implementation, if the third boost pressure P-3 obtained in the third time period t3 is 350Pa, it is determined that the boost pressure is larger in a short time, and the second injection amount C-2 is compared with the second preset injection amount C2. If the first injection amount is 350mL, 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 by 0.8kW within the fourth change time period of 1.7s.

[0124] In another possible implementation, if the third boost pressure P-3 obtained in the third time period 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 time period t3 is continuously 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 provided in an embodiment of the present application, comprising:

[0127] A determination module 501 is used to determine 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;

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

[0129] Among them, 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 regulation method and device, which 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; when it is determined that the engine speed is in the first speed range, the absorption power of the hydraulic pump is adjusted based on the first boost pressure and the 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 the second speed range, the absorption power of the hydraulic pump is adjusted based on the second boost pressure, the second preset pressure, the first injection amount and the first preset injection amount, wherein the second boost pressure is obtained within a second time period; 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 injection amount and the second preset injection amount, wherein the third boost pressure is obtained within a third time period; 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 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, thereby achieving accurate adjustment of the absorption power of the hydraulic pump under different speed conditions.

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

[0132] comparing the first boost pressure with the first preset pressure;

[0133] When the first boost pressure is greater than the first preset pressure, within a first change time period, the absorption power of the hydraulic pump is reduced by a first preset power, and the output power of the hydraulic pump is adjusted to a first target power;

[0134] When the first boost pressure is less than or equal to the first preset pressure, the boost pressure in the next first period of time is updated to 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.

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

[0136] comparing the second boost pressure with the second preset pressure;

[0137] When the second boost pressure is greater than the second preset pressure, adjusting the absorption power of the hydraulic pump based on the first fuel injection amount and the first preset fuel injection amount;

[0138] When the second boost pressure is less than or equal to the second preset pressure, the boost pressure in the next second time period is updated to 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 injection amount and the first preset injection amount.

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

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

[0141] When the first fuel injection amount is greater than the first preset fuel injection amount, within a second change time period, the absorbed power of the hydraulic pump is reduced by a second preset power, and the output power of the hydraulic pump is adjusted to a second target power;

[0142] When the first injection amount is less than or equal to the first preset injection amount, within a third change time period, the absorption power of the hydraulic pump is reduced by a third preset power, and the output power of the hydraulic pump is adjusted to a third target power.

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

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

[0145] When 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;

[0146] When the third boost pressure is less than or equal to the third preset pressure, the boost pressure in the next third time period is updated to 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 injection amount and the second preset injection amount.

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

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

[0149] When the second fuel injection amount is greater than the second preset fuel injection amount, within a fourth change time period, the absorption power of the hydraulic pump is reduced by a fourth preset power, and the output power of the hydraulic pump is adjusted to a fourth target power;

[0150] When the second fuel injection amount is less than or equal to the second preset fuel injection amount, within a fifth change time period, the absorption power of the hydraulic pump is reduced by a fifth preset power, and the output power of the hydraulic pump is adjusted to a fifth target power.

[0151] Based on the same inventive concept, an embodiment of the present application also provides an electronic device, the principle of which is similar to the principle of which is similar to the principle of which the above-mentioned power regulation method and device solve the problem, and the repeated parts will not be repeated.

[0152] like Figure 6 , which is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application, includes a memory 601 and a processor 602, wherein:

[0153] The memory 601 is used to store computer programs;

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

[0155] Determine a 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;

[0156] When 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 period;

[0157] When 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 time period;

[0158] When 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 time period;

[0159] Among them, 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.

[0160] The embodiment of the present application provides a power regulation method, device and electronic device, the method determines 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; when it is determined that the engine speed is in the first speed range, the absorption power of the hydraulic pump is adjusted based on the first boost pressure and the 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 the second speed range, the absorption power of the hydraulic pump is adjusted based on the second boost pressure, the second preset pressure, the first injection amount and the first preset injection amount, wherein the second boost pressure is obtained within a second time period; 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 injection amount and the second preset injection amount, wherein the third boost pressure is obtained within a third time period; 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 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, thereby achieving accurate adjustment of the absorption power of the hydraulic pump under different speed conditions.

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

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

[0163] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A power regulation method, characterized in that: The method comprises: Determine a 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; When 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 period; When 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 time period; When 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 time period; Among them, 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.

2. The method according to claim 1, characterized in that When it is determined that the engine speed is within the first speed range, adjusting the absorption power of the hydraulic pump based on the first boost pressure and the first preset pressure includes: comparing the first boost pressure with the first preset pressure; When the first boost pressure is greater than the first preset pressure, within a first change time period, the absorption power of the hydraulic pump is reduced by a first preset power, and the output power of the hydraulic pump is adjusted to a first target power; When the first boost pressure is less than or equal to the first preset pressure, the boost pressure in the next first period of time is updated to 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.

3. The method according to claim 1, characterized in that When it is determined that the engine speed is in the second speed range, adjusting the absorption power of the hydraulic pump based on the second boost pressure, the second preset pressure, the first injection amount and the first preset injection amount includes: comparing the second boost pressure with the second preset pressure; When the second boost pressure is greater than the second preset pressure, adjusting the absorption power of the hydraulic pump based on the first fuel injection amount and the first preset fuel injection amount; When the second boost pressure is less than or equal to the second preset pressure, the boost pressure in the next second time period is updated to 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 injection amount and the first preset injection amount.

4. The method according to claim 3, characterized in that The adjusting the absorption power of the hydraulic pump based on the first fuel injection amount and the first preset fuel injection amount includes: comparing the first fuel injection amount with the first preset fuel injection amount; When the first fuel injection amount is greater than the first preset fuel injection amount, within a second change time period, the absorbed power of the hydraulic pump is reduced by a second preset power, and the output power of the hydraulic pump is adjusted to a second target power; When the first injection amount is less than or equal to the first preset injection amount, within a third change time period, the absorption power of the hydraulic pump is reduced by a third preset power, and the output power of the hydraulic pump is adjusted to a third target power.

5. The method according to claim 1, characterized in that When it is determined that the engine speed is in the third speed range, adjusting the absorption power of the hydraulic pump based on the third boost pressure, the third preset pressure, the second fuel injection amount and the second preset fuel injection amount includes: comparing the third boost pressure with the third preset pressure; When 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; When the third boost pressure is less than or equal to the third preset pressure, the boost pressure in the next third time period is updated to 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 injection amount and the second preset injection amount.

6. The method according to claim 5, characterized in that The adjusting, based on the second fuel injection amount and the second preset fuel injection amount, of the absorbed power of the hydraulic pump comprises: comparing the second fuel injection amount with the second preset fuel injection amount; When the second fuel injection amount is greater than the second preset fuel injection amount, within a fourth change time period, the absorption power of the hydraulic pump is reduced by a fourth preset power, and the output power of the hydraulic pump is adjusted to a fourth target power; When the second fuel injection amount is less than or equal to the second preset fuel injection amount, within a fifth change time period, the absorption power of the hydraulic pump is reduced by a fifth preset power, and the output power of the hydraulic pump is adjusted to a fifth target power.

7. A power regulating device, characterized in that: The device comprises: a determination module, configured to determine 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, 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 adjust 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 speed is in the first speed range, wherein the first boost pressure is obtained within a first time period; to 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 when it is determined that the engine speed is in the second speed range, wherein the second boost pressure is obtained within a second time period; to 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 when it is determined that the engine speed is in the third speed range, wherein the third boost pressure is obtained within a third time period; Among them, 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.

8. The device according to claim 7, characterized in that The processing module is specifically used for: comparing the first boost pressure with the first preset pressure; When the first boost pressure is greater than the first preset pressure, within a first change time period, the absorption power of the hydraulic pump is reduced by a first preset power, and the output power of the hydraulic pump is adjusted to a first target power; When the first boost pressure is less than or equal to the first preset pressure, the boost pressure in the next first period of time is updated to 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.

9. The device according to claim 7, characterized in that The processing module is specifically used for: comparing the second boost pressure with the second preset pressure; When the second boost pressure is greater than the second preset pressure, adjusting the absorption power of the hydraulic pump based on the first fuel injection amount and the first preset fuel injection amount; When the second boost pressure is less than or equal to the second preset pressure, the boost pressure in the next second time period is updated to 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 injection amount and the first preset injection amount.

10. An electronic device, characterized in that: comprising a memory and a processor, wherein: The memory is used to store computer programs; The processor is used to execute the computer program to perform the following steps: Determine a 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; When 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 period; When 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 time period; When 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 time period; Among them, 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.

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