Engine fuel-saving control method, device and equipment, storage medium and program product

Abstract

The invention relates to an engine oil-saving control method, device and equipment, a storage medium and a program product. The method comprises the steps that the on-off state of a power takeoff switch in a to-be-controlled vehicle is obtained; under the condition that the on-off state is the on-state, an oil-saving control strategy under the condition that the on-off state is the on-state is determined; the fuel-saving control strategy is determined by adjusting the rotating speed and the torque of an engine based on an engine operation data curve when a power takeoff switch is in an on state; and the to-be-controlled vehicle is controlled to run according to the engine rotating speed and torque corresponding to the fuel-saving control strategy. By adopting the method, the oil consumption under the working condition can be reduced.

Description

Technical Field

[0001] The present application relates to the field of diesel engine control technology, and in particular to an engine fuel saving control method, device, equipment, storage medium and program product. Background Art

[0002] With the widespread application of special operation vehicles, the fuel saving control of engines for special operation vehicles has been paid more and more attention. Special operation vehicles refer to vehicles with power output devices (Power-Take-Off, PTO, also known as power take-off). For example, dump trucks, lifting vehicles, truck cranes, cement mixers, garbage trucks, etc. In addition to being used for vehicle driving, the power of the engine in special operation vehicles is also used to output to other equipment. However, special operation vehicles have the problem of high fuel consumption under operating conditions. Summary of the invention

[0003] Based on this, it is necessary to provide an engine fuel saving control method, device, computer equipment, computer readable storage medium and computer program product that can reduce fuel consumption under operating conditions in order to solve the above technical problems.

[0004] In a first aspect, the present application provides an engine fuel saving control method, comprising:

[0005] Obtaining the switch status of the power take-off switch in the vehicle to be controlled;

[0006] When the switch state is in the on state, determining a fuel saving control strategy when the switch state is in the on state; the fuel saving control strategy is based on an engine operation data curve when the power take-off switch is in the on state, and is determined by adjusting the engine speed and torque;

[0007] The operation of the controlled vehicle is controlled according to the engine speed and torque corresponding to the fuel saving control strategy.

[0008] In one embodiment, the step of determining the fuel saving control strategy includes:

[0009] Obtaining an engine operation data curve when a power take-off switch in a test vehicle is in an on state;

[0010] Determine an engine speed threshold and a torque threshold according to an engine operation data curve;

[0011] The engine speed is adjusted according to the engine speed threshold, the torque is adjusted according to the torque threshold, the after-treatment heating is stopped, and the smoke limit is adjusted until the adjusted vehicle fuel consumption meets the preset conditions. The engine speed, torque, smoke limit and stopping of after-treatment heating corresponding to the adjusted vehicle fuel consumption are used as the fuel saving control strategy.

[0012] In one embodiment, controlling the operation of the vehicle to be controlled according to the engine speed and torque corresponding to the fuel saving control strategy includes:

[0013] Stop post-processing heating, and control the operation of the controlled vehicle according to the engine speed and torque corresponding to the fuel-saving control strategy until the switch state is turned off, and then restart the post-processing heating.

[0014] In one embodiment, after controlling the operation of the vehicle to be controlled according to the engine speed and torque corresponding to the fuel saving control strategy, the method further includes:

[0015] Get the fuel consumption after strategy adjustment;

[0016] Compare the fuel consumption before the strategy adjustment with the fuel consumption after the strategy adjustment;

[0017] The fuel saving control result is determined according to the comparison result.

[0018] In one embodiment, determining the fuel saving control result according to the comparison result includes:

[0019] Get smoke emissions;

[0020] When the difference between the fuel consumption before the strategy adjustment and the fuel consumption after the strategy adjustment is greater than the preset difference, and the smoke emission is less than the smoke limit when the switch state is in the on state, it is determined that the fuel saving control result is a successful fuel saving control.

[0021] In one embodiment, the step of determining the smoking limit includes:

[0022] Controlling the power take-off switch in the calibration test bench to turn on and keep it on for a preset time, and operating the engine according to the engine speed and torque under the fuel saving control strategy to obtain a first operating result;

[0023] Controlling the power take-off switch in the calibration test bench to be turned off for a preset time, and operating the engine according to the engine speed and torque under the normal control strategy to obtain a second operation result;

[0024] The smoke limit is adjusted based on the first operation result and the second operation result.

[0025] In a second aspect, the present application also provides an engine fuel saving control device, comprising:

[0026] An acquisition module, used to acquire the switch status of a power take-off switch in a vehicle to be controlled;

[0027] A determination module, used for determining a fuel saving control strategy when the switch state is in the on state when the switch state is in the on state; the fuel saving control strategy is based on an engine operation data curve when the power take-off switch is in the on state and is determined by adjusting the engine speed and torque;

[0028] The control module is used to control the operation of the vehicle to be controlled according to the engine speed and torque corresponding to the fuel saving control strategy.

[0029] In a third aspect, the present application further provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the following steps are implemented:

[0030] Obtaining the switch status of the power take-off switch in the vehicle to be controlled;

[0031] When the switch state is in the on state, determining a fuel saving control strategy when the switch state is in the on state; the fuel saving control strategy is based on an engine operation data curve when the power take-off switch is in the on state, and is determined by adjusting the engine speed and torque;

[0032] The operation of the controlled vehicle is controlled according to the engine speed and torque corresponding to the fuel saving control strategy.

[0033] In a fourth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the following steps are implemented:

[0034] Obtaining the switch status of the power take-off switch in the vehicle to be controlled;

[0035] When the switch state is in the on state, determining a fuel saving control strategy when the switch state is in the on state; the fuel saving control strategy is based on an engine operation data curve when the power take-off switch is in the on state, and is determined by adjusting the engine speed and torque;

[0036] The operation of the controlled vehicle is controlled according to the engine speed and torque corresponding to the fuel saving control strategy.

[0037] In a fifth aspect, the present application further provides a computer program product, including a computer program, which implements the following steps when executed by a processor:

[0038] Obtaining the switch status of the power take-off switch in the vehicle to be controlled;

[0039] When the switch state is in the on state, determining a fuel saving control strategy when the switch state is in the on state; the fuel saving control strategy is based on an engine operation data curve when the power take-off switch is in the on state, and is determined by adjusting the engine speed and torque;

[0040] The operation of the controlled vehicle is controlled according to the engine speed and torque corresponding to the fuel saving control strategy.

[0041] The above-mentioned engine fuel saving control method, device, computer equipment, computer readable storage medium and computer program product obtain the switch state of the power take-off switch in the vehicle to be controlled; when the switch state is in the on state, determine the fuel saving control strategy when the switch state is in the on state; the fuel saving control strategy is based on the engine operation data curve when the power take-off switch is in the on state, and is determined by adjusting the engine speed and torque; the operation of the vehicle to be controlled is controlled according to the engine speed and torque corresponding to the fuel saving control strategy. The above scheme, through the switch state of the power take-off switch in the vehicle to be controlled, when the switch state is in the on state, indicates that the vehicle to be controlled has entered the operating condition. Since the fuel saving control strategy when the switch state is in the on state is based on the engine operation data curve when the power take-off switch is in the on state, and is determined by adjusting the engine speed and torque, therefore, the operation of the vehicle to be controlled is controlled according to the engine speed and torque corresponding to the fuel saving control strategy, which is conducive to reducing the fuel consumption of the vehicle to be controlled under the operating condition. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments of the present application or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0043] FIG1 is an application environment diagram of an engine fuel saving control method according to an embodiment;

[0044] FIG2 is a flow chart of an engine fuel saving control method according to an embodiment;

[0045] FIG3 is a schematic diagram of an engine operation data curve in one embodiment;

[0046] FIG4 is a schematic diagram of an engine operation data curve after fuel saving control in one embodiment;

[0047] FIG5 is a schematic diagram of fuel consumption rate at different torques and engine speeds in one embodiment;

[0048] FIG6 is a schematic diagram of the overall flow of an engine fuel saving control method in one embodiment;

[0049] FIG7 is a structural block diagram of an engine fuel saving control device in one embodiment;

[0050] FIG. 8 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0052] The engine fuel saving control method provided in the embodiment of the present application can be applied in the application environment shown in FIG. 1. The controller 102 communicates with the vehicle to be controlled 104 through a network. The data storage system can store the data that the controller 102 needs to process. The data storage system can be integrated on the controller 102, or it can be placed on the cloud or other network servers. The controller 102 can be an electronic control unit (ECU) integrated in the vehicle to be controlled 104, or it can be a terminal independent of the vehicle to be controlled 104. The terminal can be, but is not limited to, various personal computers, laptops, smart phones, tablet computers, Internet of Things devices and portable wearable devices. The Internet of Things devices can be smart speakers, smart TVs, smart air conditioners, smart car-mounted devices, projection devices, etc. The portable wearable device can be a smart watch, a smart bracelet, a head-mounted device, etc. The head-mounted device can be a virtual reality (VR) device, an augmented reality (AR) device, smart glasses, etc. The vehicle to be controlled 104 is a working vehicle with a power take-off.

[0053] In an exemplary embodiment, as shown in FIG2 , an engine fuel saving control method is provided, which is described by taking the method applied to the controller 102 in FIG1 as an example, and includes the following steps 202 to 206 . Among them:

[0054] Step 202, obtaining the switch status of the power take-off switch in the vehicle to be controlled.

[0055] The vehicle to be controlled refers to a special operation vehicle that needs to be controlled for engine fuel saving. The vehicle to be controlled has a power take-off (PTO), which is a mechanical device that can obtain power from the engine of the vehicle to be controlled and then output power to external equipment through the transmission system to achieve power drive. The power take-off switch is used to control whether to enter the PTO operating state.

[0056] In some embodiments, when the power take-off switch is pressed, the switch state of the power take-off switch is on, indicating that the PTO operating condition has been entered; when the power take-off switch is not pressed, the switch state of the power take-off switch is off, indicating that the non-PTO operating condition has been entered, that is, the normal operating condition of the vehicle to be controlled.

[0057] Step 204, when the switch state is on, determine the fuel saving control strategy when the switch state is on; the fuel saving control strategy is based on the engine operation data curve when the power take-off switch is on, and is determined by adjusting the engine speed and torque.

[0058] The fuel-saving control strategy refers to the vehicle control strategy under the PTO working condition. Using the fuel-saving control strategy to control the vehicle is conducive to saving fuel consumption. In the traditional method, the vehicle to be controlled (for example, a truck-mounted crane) uses the same calibration data as a traditional diesel vehicle in the PTO working condition, which leads to high fuel consumption in the working condition. The embodiment of the present application proposes to determine the corresponding fuel-saving control strategy when the power take-off switch is in the on state, so as to control the vehicle according to the fuel-saving control strategy.

[0059] The engine operation data curve refers to the engine operation data of the vehicle to be controlled obtained when the power take-off switch is in the on state (i.e., PTO operating condition), which is obtained by drawing a curve. In some embodiments, the engine operation data can be the data of the vehicle to be controlled obtained by calling the market visit through the big data platform. As shown in Figure 3, a schematic diagram of the engine operation data curve in one embodiment. The engine operation data curve includes data such as engine speed, torque, rail pressure, air flow, and final fuel injection amount. The torque upper limit and engine speed upper limit can be seen from the engine operation data curve.

[0060] The fuel saving control strategy can be based on the engine operation data curve and determined by adjusting the engine speed and torque to ensure that the engine speed and torque corresponding to the fuel saving control strategy have the best fuel saving effect. As shown in Figure 4, a schematic diagram of the engine operation data curve after fuel saving control in one embodiment.

[0061] Step 206 , controlling the operation of the vehicle to be controlled according to the engine speed and torque corresponding to the fuel saving control strategy.

[0062] The engine speed and torque corresponding to the fuel-saving control strategy are used to control the engine of the controlled vehicle, thereby reducing the fuel consumption of the controlled vehicle under the PTO operating condition.

[0063] In the above-mentioned engine fuel-saving control method, the switch state of the power take-off switch in the vehicle to be controlled is obtained; when the switch state is in the on state, the fuel-saving control strategy when the switch state is in the on state is determined; the fuel-saving control strategy is based on the engine operation data curve when the power take-off switch is in the on state, and is determined by adjusting the engine speed and torque; the operation of the vehicle to be controlled is controlled according to the engine speed and torque corresponding to the fuel-saving control strategy. In the above scheme, the switch state of the power take-off switch in the vehicle to be controlled indicates that the vehicle to be controlled has entered the operating condition when the switch state is in the on state. Since the fuel-saving control strategy when the switch state is in the on state is based on the engine operation data curve when the power take-off switch is in the on state, and is determined by adjusting the engine speed and torque, therefore, the operation of the vehicle to be controlled is controlled according to the engine speed and torque corresponding to the fuel-saving control strategy, which is beneficial to reducing the fuel consumption of the vehicle to be controlled under the operating condition.

[0064] In an exemplary embodiment, the steps for determining the fuel-saving control strategy include: obtaining an engine operating data curve when the power take-off switch in the test vehicle is in the on state; determining an engine speed threshold and a torque threshold based on the engine operating data curve; adjusting the engine speed according to the engine speed threshold, adjusting the torque according to the torque threshold, stopping post-processing heating, and adjusting the smoke limit until the adjusted vehicle fuel consumption meets the preset conditions, and then using the engine speed, torque, smoke limit, and stopping post-processing heating corresponding to the adjusted vehicle fuel consumption as the fuel-saving control strategy.

[0065] The test vehicle refers to a special operation vehicle of the same type as the vehicle to be controlled. For example, if the vehicle to be controlled is a truck-mounted crane, the test vehicle is also a truck-mounted crane.

[0066] The engine operation data curve in the process of determining the fuel saving control strategy refers to the engine operation data curve when the power take-off switch in the test vehicle is turned on, which can be obtained through the big data platform. The engine speed threshold refers to the upper limit of the engine speed in the engine operation data curve, and the torque threshold refers to the upper limit in the engine operation data curve. Referring to Figure 3, the torque upper limit is 450N.m and the engine speed upper limit is 700 r / min.

[0067] In the process of adjusting the engine speed and torque, the engine speed is adjusted according to the first preset step size, or the torque is adjusted according to the second preset step size, and the vehicle fuel consumption after each adjustment is detected until the adjusted vehicle fuel consumption meets the preset conditions, and the engine speed and torque corresponding to the adjusted vehicle fuel consumption are used as the fuel saving control strategy. As shown in Figure 5, a schematic diagram of the fuel consumption rate under different torques and engine speeds in one embodiment. The fuel consumption rate refers to the amount of fuel consumed per unit of mechanical work. For example, it can be the amount of fuel consumed per preset distance traveled. It can be seen from the figure that at different engine speeds, the fuel consumption rate varies with the change of torque, wherein there is a target torque corresponding to the minimum fuel consumption rate at the same engine speed.

[0068] In other embodiments, in order to further save fuel consumption, the post-processing heating can be stopped under the PTO operating condition. Since a lot of fuel will be used for post-processing heating when the engine is in the post-processing heating condition, the purpose of the post-processing heating is to make the post-processing heating temperature reach the target temperature, for example, 280°C, to prevent the formation of urea crystals. However, in the PTO operating condition, the post-processing heating is in an idling state and has basically no effect, and the target temperature cannot be reached. At this time, the fuel consumed for thermal management is wasted. Based on this, the embodiment of the present application proposes to stop the post-processing heating as one of the fuel saving control strategies.

[0069] In order to ensure that the smoke limit under the fuel-saving control strategy complies with regulations, it is necessary to fine-tune the smoke limit to adapt to the PTO operating conditions under the fuel-saving control strategy.

[0070] In some embodiments, at least one of the engine speed, torque, smoke limit, and stopping of post-processing heating corresponding to the adjusted vehicle fuel consumption that meets the preset conditions can be used as a fuel saving control strategy. The preset conditions can be that the adjusted vehicle fuel consumption is lower than the vehicle fuel consumption before adjustment, or that the adjusted vehicle fuel consumption is lower than the vehicle fuel consumption before adjustment, and the difference between the two exceeds a preset difference, etc.

[0071] In this embodiment, by testing the engine operation data curve when the power take-off switch in the vehicle is in the on state, the engine speed threshold and torque threshold are determined, and then the engine speed and torque are adjusted, the post-processing heating is stopped, and the smoke limit adjustment is performed. The final fuel-saving control strategy can ensure that the vehicle's fuel consumption meets the preset conditions and achieve the purpose of saving fuel consumption.

[0072] In an exemplary embodiment, the operation of the vehicle to be controlled is controlled according to the engine speed and torque corresponding to the fuel-saving control strategy, including: stopping the after-treatment heating, and controlling the operation of the vehicle to be controlled according to the engine speed and torque corresponding to the fuel-saving control strategy, until the switch state is closed, and then re-enabling the after-treatment heating.

[0073] Among them, during the process of controlling the engine of the controlled vehicle according to the engine speed and torque corresponding to the fuel-saving control strategy, the post-processing heating can also be stopped to reduce the fuel consumption of the post-processing heating, improve economy, and reduce carbon smoke generation.

[0074] In this way, the controller can control the stop of the post-processing heating, and control the operation of the controlled vehicle according to the engine speed and torque corresponding to the fuel saving control strategy, until the switch state is turned off, and then the post-processing heating is restarted.

[0075] In this embodiment, by stopping the post-treatment heating under the PTO operating condition and controlling the operation of the vehicle to be controlled according to the engine speed and torque corresponding to the fuel-saving control strategy, since the PTO operating condition is in an idling state, the post-treatment heating cannot achieve the purpose of preventing urea crystallization. Therefore, under the PTO operating condition, the operation of the vehicle to be controlled is controlled according to the engine speed and torque corresponding to the oil control strategy, and the post-treatment heating is stopped, which is beneficial to saving fuel consumption.

[0076] In an exemplary embodiment, after controlling the operation of the vehicle to be controlled according to the engine speed and torque corresponding to the fuel-saving control strategy, it also includes: obtaining the fuel consumption after the strategy is adjusted; comparing the fuel consumption before the strategy is adjusted with the fuel consumption after the strategy is adjusted; and determining the fuel-saving control result based on the comparison result.

[0077] The fuel consumption after strategy adjustment refers to the fuel consumption of the vehicle to be controlled after the vehicle to be controlled is operated according to the engine speed and torque corresponding to the fuel-saving control strategy.

[0078] The controller compares the fuel consumption before and after the strategy adjustment to obtain a comparison result. If the comparison result is that the fuel consumption before the strategy adjustment is greater than the fuel consumption after the strategy adjustment, and the difference between the two is greater than a preset difference, then the fuel saving control result is determined to be a successful fuel saving control. In some embodiments, the controller can display the fuel saving control result.

[0079] If the comparison result is that the fuel consumption before the strategy adjustment is not greater than the fuel consumption after the strategy adjustment, or the difference between the two is not greater than the preset difference, then the fuel saving control result is determined to be a fuel saving control failure.

[0080] In this embodiment, by comparing the fuel consumption before and after the strategy adjustment, it is determined whether the fuel saving control result is successful, so as to verify whether the fuel saving control strategy meets the fuel saving demand.

[0081] In an exemplary embodiment, the fuel saving control result is determined based on the comparison result, including: obtaining the smoke emissions; when the difference between the fuel consumption before the strategy adjustment and the fuel consumption after the strategy adjustment is greater than the preset difference, and the smoke emissions are less than the smoke limit when the switch state is in the on state, determining that the fuel saving control result is a successful fuel saving control.

[0082] Among them, the fuel saving control strategy should also ensure that the smoke limit meets the relevant regulations. Therefore, it is necessary to detect the smoke emission obtained after the control according to the fuel saving control strategy. The controller compares the smoke emission with the smoke limit when the switch state of the power take-off switch is on. If the smoke emission is less than the smoke limit when the switch state is on, and the difference between the fuel consumption before the strategy adjustment and the fuel consumption after the strategy adjustment is greater than the preset difference, the fuel saving control result is determined to be a successful fuel saving control.

[0083] In this embodiment, by further detecting the smoke emission when the fuel consumption before and after the strategy adjustment meets the fuel saving condition, it is ensured that the smoke emission meets the smoke limit condition at the same time, thus ensuring fuel saving and reducing carbon smoke emissions.

[0084] In an exemplary embodiment, the step of determining the smoke limit includes: controlling the power take-off switch in the calibration test bench to turn on and keep it for a preset time, and operating according to the engine speed and torque under the fuel-saving control strategy to obtain a first operating result; controlling the power take-off switch in the calibration test bench to turn off and keep it for a preset time, and operating according to the engine speed and torque under the normal control strategy to obtain a second operating result; adjusting the smoke limit based on the first operating result and the second operating result.

[0085] Among them, when the fuel-saving control strategy is adopted, the smoke limit needs to be fine-tuned by the vehicle calibration bench to adapt to the fuel-saving control strategy. The normal control strategy refers to the engine control strategy adopted by the vehicle to be controlled under non-PTO operating conditions.

[0086] The calibration of the smoke limit requires the vehicle to be jointly carried out under PTO operating conditions and normal non-PTO operating conditions. Specifically, the controller controls the power take-off switch in the calibration test bench to turn on and continue for a preset time, and operates according to the engine speed and torque under the fuel-saving control strategy to obtain the first operation result, controls the power take-off switch in the calibration test bench to turn off and continue for a preset time, and operates according to the engine speed and torque under the normal control strategy to obtain the second operation result. The first operation result is used to characterize the smoke emission under the fuel-saving control strategy, and the second operation result is used to characterize the smoke emission under the normal control strategy.

[0087] The smoking limit is determined jointly by the first operation result and the second operation result to ensure that the smoking limit complies with relevant regulations.

[0088] In this embodiment, by performing fuel-saving control under PTO conditions and ordinary control under non-PTO conditions on a calibration bench, the two are combined to adjust the smoke limit, which is beneficial to ensure that the smoke limit complies with relevant regulations and reduce the vehicle's carbon smoke emissions.

[0089] To explain the engine fuel saving control method and effect in detail, a most detailed embodiment is described below:

[0090] FIG. 6 is a schematic diagram of the overall flow of an engine fuel saving control method in one embodiment.

[0091] Step S1: Conduct market research and visits to find special operation vehicles with problems, such as truck cranes, cement mixers, garbage trucks, etc., collect relevant problem data through the big data platform or ECT (Edge Crush Test) box, and collect data on some vehicles with high fuel consumption and easy stalling problems;

[0092] Step S2, through the data analysis of the special operating conditions of the special operation vehicle obtained, it is found that when the vehicle with high fuel consumption problem has special operating conditions, in the idle mode, there is post-processing thermal management, that is, engine electronic control data mode 5, and the operating engine speed is 700rpm / min.

[0093] Step S3, analyzing the data of special working conditions of special working vehicles, combining the engine characteristics under the post-processing thermal management working condition, the post-processing heating working condition will have a lot of fuel used for post-processor heating, the working speed is at the lowest speed of the engine operation, and there is no low-speed margin;

[0094] Step S4, through visiting the market, it is found that the fuel consumption of the truck crane in the operating condition is high, and there is a problem of flameout during operation, so a strategy is developed for this purpose.

[0095] Step S5, calling the Jiefang truck crane data obtained from the market visit through the big data platform, and drawing the engine data of the engine under the PTO working condition, that is, sample 1, including engine speed, torque, rail pressure, air flow, final fuel injection amount, etc.

[0096] Step S6, by analyzing the data stream collected before and after changing the upper torque limit of the operating condition, the upper torque limit needs to reach 450 Nm; the operating engine speed is 700 r / min, and there is no low-speed margin; and the engine is in the post-processing heating condition, that is, mode 5. At this time, a lot of fuel will be used for post-processor heating. The purpose of post-processing heating is to make the post-processing temperature reach 280°C to prevent the formation of urea crystals, and idling post-processing heating has basically no effect. No matter how thermal management is performed, the target temperature cannot be reached. At this time, the fuel consumed for thermal management is wasted.

[0097] Step S7, in order to solve the above problems, it is necessary to: 1. Increase the operating speed: increase the lower limit margin of the speed fluctuation after the crane is loaded by increasing the operating speed; 2. Increase the upper limit of the operating torque: increase the upper limit of the operating torque to improve the load-bearing capacity of the crane; 3. No post-processing heating is performed in the operating condition: post-processing heating in the operating condition is futile, fuel is lost in vain, heating is cancelled, and economy is improved; 4. The whole vehicle coordinates to adjust the smoke limit: the whole vehicle coordinates to verify the bench data and adjust the smoke limit.

[0098] Step S8, through the bench simulation vehicle test, the PTO vehicle operating condition is simulated on the bench. After investigation, the operating speed of the truck crane is increased by 50r / min; the operating torque is increased by 50N.m to improve the operating capacity; the operating mode of the operating condition is positioned as the normal working mode to improve the economy and reduce the generation of carbon smoke;

[0099] In step S9, the new strategy data is submitted to the vehicle calibration for fine adjustment of the smoke limit to adapt to the new working conditions. The results are tested on site and the lifting is smooth without stalling problems. The fuel consumption in the operating condition also drops from 2.7L / h in Sample 1 to 2.089L / h.

[0100] After the strategy in step S10 is successfully developed, it can be flashed at a service station to reduce the phenomenon of stalling and increase the fuel economy of the vehicle.

[0101] The above-mentioned engine fuel saving control method obtains the switch state of the power take-off switch in the vehicle to be controlled; when the switch state is in the on state, determines the fuel saving control strategy when the switch state is in the on state; the fuel saving control strategy is based on the engine operation data curve when the power take-off switch is in the on state, and is determined by adjusting the engine speed and torque; the operation of the vehicle to be controlled is controlled according to the engine speed and torque corresponding to the fuel saving control strategy. The above scheme, through the switch state of the power take-off switch in the vehicle to be controlled, when the switch state is in the on state, indicates that the vehicle to be controlled has entered the operating condition. Since the fuel saving control strategy when the switch state is in the on state is based on the engine operation data curve when the power take-off switch is in the on state, and is determined by adjusting the engine speed and torque, therefore, controlling the operation of the vehicle to be controlled according to the engine speed and torque corresponding to the fuel saving control strategy is beneficial to reducing the fuel consumption of the vehicle to be controlled under the operating condition.

[0102] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0103] Based on the same inventive concept, the embodiment of the present application also provides an engine fuel saving control device for implementing the engine fuel saving control method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more engine fuel saving control device embodiments provided below can refer to the limitations of the engine fuel saving control method above, and will not be repeated here.

[0104] In an exemplary embodiment, as shown in FIG. 7 , an engine fuel saving control device 100 is provided, comprising: an acquisition module 120 , a determination module 140 and a control module 160 , wherein:

[0105] An acquisition module 120 is used to acquire the switch state of the power take-off switch in the vehicle to be controlled;

[0106] A determination module 140 is used to determine a fuel saving control strategy when the switch state is in the on state when the switch state is in the on state; the fuel saving control strategy is based on the engine operation data curve when the power take-off switch is in the on state, and is determined by adjusting the engine speed and torque;

[0107] The control module 160 is used to control the operation of the vehicle to be controlled according to the engine speed and torque corresponding to the fuel saving control strategy.

[0108] The above-mentioned engine fuel saving control device obtains the switch state of the power take-off switch in the vehicle to be controlled; when the switch state is in the on state, determines the fuel saving control strategy when the switch state is in the on state; the fuel saving control strategy is based on the engine operation data curve when the power take-off switch is in the on state, and is determined by adjusting the engine speed and torque; the operation of the vehicle to be controlled is controlled according to the engine speed and torque corresponding to the fuel saving control strategy. The above scheme, through the switch state of the power take-off switch in the vehicle to be controlled, when the switch state is in the on state, indicates that the vehicle to be controlled has entered the operating condition. Since the fuel saving control strategy when the switch state is in the on state is based on the engine operation data curve when the power take-off switch is in the on state, and is determined by adjusting the engine speed and torque, therefore, controlling the operation of the vehicle to be controlled according to the engine speed and torque corresponding to the fuel saving control strategy is conducive to reducing the fuel consumption of the vehicle to be controlled under the operating condition.

[0109] In one embodiment, in terms of determining the fuel-saving control strategy, the determination module 140 is also used to: obtain the engine operation data curve when the power take-off switch in the test vehicle is in the on state; determine the engine speed threshold and the torque threshold according to the engine operation data curve; adjust the engine speed according to the engine speed threshold, adjust the torque according to the torque threshold, stop post-processing heating, and adjust the smoke limit until the adjusted vehicle fuel consumption meets the preset conditions, and then use the engine speed, torque, smoke limit, and stop of post-processing heating corresponding to the adjusted vehicle fuel consumption as the fuel-saving control strategy.

[0110] In one embodiment, the operation of the vehicle to be controlled is controlled according to the engine speed and torque corresponding to the fuel-saving control strategy. The control module 160 is also used to: stop the post-processing heating, and control the operation of the vehicle to be controlled according to the engine speed and torque corresponding to the fuel-saving control strategy, until the switch state is closed, and then restart the post-processing heating.

[0111] In one embodiment, after the vehicle to be controlled is operated according to the engine speed and torque corresponding to the fuel saving control strategy, the control module 160 is also used to: obtain the fuel consumption after the strategy is adjusted; compare the fuel consumption before the strategy is adjusted with the fuel consumption after the strategy is adjusted; and determine the fuel saving control result according to the comparison result.

[0112] In one embodiment, the fuel saving control result is determined based on the comparison result, and the control module 160 is also used to: obtain the smoke emissions; when the difference between the fuel consumption before the strategy adjustment and the fuel consumption after the strategy adjustment is greater than the preset difference, and the smoke emissions are less than the smoke limit when the switch state is in the on state, determine that the fuel saving control result is a successful fuel saving control.

[0113] In one embodiment, in terms of determining the smoke limit, the control module 160 is also used to: control the power take-off switch in the calibration test bench to turn on and keep it for a preset time, and operate according to the engine speed and torque under the fuel-saving control strategy to obtain a first operating result; control the power take-off switch in the calibration test bench to turn off and keep it for a preset time, and operate according to the engine speed and torque under the normal control strategy to obtain a second operating result; adjust the smoke limit based on the first operating result and the second operating result.

[0114] Each module in the above engine fuel saving control device can be implemented in whole or in part by software, hardware or a combination thereof. Each module can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute operations corresponding to each module.

[0115] In an exemplary embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be shown in FIG8. The computer device includes a processor, a memory, an input / output interface, a communication interface, a display unit, and an input device. The processor, the memory, and the input / output interface are connected via a system bus, and the communication interface, the display unit, and the input device are connected to the system bus via the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner may be implemented through WIFI, a mobile cellular network, near field communication (NFC) or other technologies. When the computer program is executed by the processor, an engine fuel saving control method is implemented. The display unit of the computer device is used to form a visually visible picture, which may be a display screen, a projection device, or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covering the display screen, or a button, trackball or touchpad set on the computer device shell, or an external keyboard, touchpad or mouse.

[0116] Those skilled in the art will understand that the structure shown in FIG. 8 is merely a block diagram of a partial structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different arrangement of components.

[0117] In an exemplary embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the computer program, the following steps are implemented:

[0118] Obtain the switch state of the power take-off switch in the vehicle to be controlled; when the switch state is in the on state, determine the fuel-saving control strategy when the switch state is in the on state; the fuel-saving control strategy is based on the engine operation data curve when the power take-off switch is in the on state, and is determined by adjusting the engine speed and torque; control the operation of the vehicle to be controlled according to the engine speed and torque corresponding to the fuel-saving control strategy.

[0119] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0120] Obtain an engine operation data curve when the power take-off switch in the test vehicle is in the on state; determine an engine speed threshold and a torque threshold based on the engine operation data curve; adjust the engine speed according to the engine speed threshold, adjust the torque according to the torque threshold, stop post-processing heating, and adjust the smoke limit until the adjusted vehicle fuel consumption meets the preset conditions, then use the engine speed, torque, smoke limit, and stop post-processing heating corresponding to the adjusted vehicle fuel consumption as a fuel-saving control strategy.

[0121] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0122] Stop post-processing heating, and control the operation of the controlled vehicle according to the engine speed and torque corresponding to the fuel-saving control strategy until the switch state is turned off, and then restart the post-processing heating.

[0123] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0124] Obtain the fuel consumption after the strategy adjustment; compare the fuel consumption before the strategy adjustment with the fuel consumption after the strategy adjustment; and determine the fuel saving control result according to the comparison result.

[0125] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0126] Obtain smoke emissions; when the difference between the fuel consumption before the strategy adjustment and the fuel consumption after the strategy adjustment is greater than a preset difference, and the smoke emissions are less than the smoke limit when the switch state is on, determine that the fuel saving control result is a successful fuel saving control.

[0127] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0128] The power take-off switch in the control calibration test bench is turned on and maintained for a preset time, and the engine speed and torque are operated under the fuel-saving control strategy to obtain a first operation result; the power take-off switch in the control calibration test bench is turned off and maintained for a preset time, and the engine speed and torque are operated under the normal control strategy to obtain a second operation result; the smoke limit is adjusted based on the first operation result and the second operation result.

[0129] In one embodiment, a computer readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

[0130] Obtain the switch state of the power take-off switch in the vehicle to be controlled; when the switch state is in the on state, determine the fuel-saving control strategy when the switch state is in the on state; the fuel-saving control strategy is based on the engine operation data curve when the power take-off switch is in the on state, and is determined by adjusting the engine speed and torque; control the operation of the vehicle to be controlled according to the engine speed and torque corresponding to the fuel-saving control strategy.

[0131] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0132] Obtain an engine operation data curve when the power take-off switch in the test vehicle is in the on state; determine an engine speed threshold and a torque threshold based on the engine operation data curve; adjust the engine speed according to the engine speed threshold, adjust the torque according to the torque threshold, stop post-processing heating, and adjust the smoke limit until the adjusted vehicle fuel consumption meets the preset conditions, then use the engine speed, torque, smoke limit, and stop post-processing heating corresponding to the adjusted vehicle fuel consumption as a fuel-saving control strategy.

[0133] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0134] Stop post-processing heating, and control the operation of the controlled vehicle according to the engine speed and torque corresponding to the fuel-saving control strategy until the switch state is turned off, and then restart the post-processing heating.

[0135] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0136] Obtain the fuel consumption after the strategy adjustment; compare the fuel consumption before the strategy adjustment with the fuel consumption after the strategy adjustment; and determine the fuel saving control result according to the comparison result.

[0137] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0138] Obtain smoke emissions; when the difference between the fuel consumption before the strategy adjustment and the fuel consumption after the strategy adjustment is greater than a preset difference, and the smoke emissions are less than the smoke limit when the switch state is on, determine that the fuel saving control result is a successful fuel saving control.

[0139] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0140] The power take-off switch in the control calibration test bench is turned on and maintained for a preset time, and the engine speed and torque are operated under the fuel-saving control strategy to obtain a first operation result; the power take-off switch in the control calibration test bench is turned off and maintained for a preset time, and the engine speed and torque are operated under the normal control strategy to obtain a second operation result; the smoke limit is adjusted based on the first operation result and the second operation result.

[0141] In one embodiment, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the following steps:

[0142] Obtain the switch state of the power take-off switch in the vehicle to be controlled; when the switch state is in the on state, determine the fuel-saving control strategy when the switch state is in the on state; the fuel-saving control strategy is based on the engine operation data curve when the power take-off switch is in the on state, and is determined by adjusting the engine speed and torque; control the operation of the vehicle to be controlled according to the engine speed and torque corresponding to the fuel-saving control strategy.

[0143] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0144] Obtain an engine operation data curve when the power take-off switch in the test vehicle is in the on state; determine an engine speed threshold and a torque threshold based on the engine operation data curve; adjust the engine speed according to the engine speed threshold, adjust the torque according to the torque threshold, stop post-processing heating, and adjust the smoke limit until the adjusted vehicle fuel consumption meets the preset conditions, then use the engine speed, torque, smoke limit, and stop post-processing heating corresponding to the adjusted vehicle fuel consumption as a fuel-saving control strategy.

[0145] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0146] Stop post-processing heating, and control the operation of the controlled vehicle according to the engine speed and torque corresponding to the fuel-saving control strategy until the switch state is turned off, and then restart the post-processing heating.

[0147] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0148] Obtain the fuel consumption after the strategy adjustment; compare the fuel consumption before the strategy adjustment with the fuel consumption after the strategy adjustment; and determine the fuel saving control result according to the comparison result.

[0149] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0150] Obtain smoke emissions; when the difference between the fuel consumption before the strategy adjustment and the fuel consumption after the strategy adjustment is greater than a preset difference, and the smoke emissions are less than the smoke limit when the switch state is on, determine that the fuel saving control result is a successful fuel saving control.

[0151] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0152] The power take-off switch in the control calibration test bench is turned on and maintained for a preset time, and the engine speed and torque are operated under the fuel-saving control strategy to obtain a first operation result; the power take-off switch in the control calibration test bench is turned off and maintained for a preset time, and the engine speed and torque are operated under the normal control strategy to obtain a second operation result; the smoke limit is adjusted based on the first operation result and the second operation result.

[0153] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0154] A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, an artificial intelligence (AI) processor, etc., but are not limited to this.

[0155] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0156] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. An engine fuel saving control method, characterized in that: The method comprises: Obtaining the switch status of the power take-off switch in the vehicle to be controlled; When the switch state is in the on state, determining a fuel saving control strategy when the switch state is in the on state; the fuel saving control strategy is based on an engine operation data curve when the power take-off switch is in the on state, and is determined by adjusting the engine speed and torque; The operation of the vehicle to be controlled is controlled according to the engine speed and torque corresponding to the fuel saving control strategy.

2. The method according to claim 1, characterized in that The step of determining the fuel saving control strategy includes: Obtaining an engine operation data curve when a power take-off switch in a test vehicle is in an on state; Determining an engine speed threshold and a torque threshold according to the engine operation data curve; The engine speed is adjusted according to the engine speed threshold, the torque is adjusted according to the torque threshold, after-treatment heating is stopped, and the smoke limit is adjusted until the adjusted vehicle fuel consumption meets the preset conditions. The engine speed, torque, smoke limit and stopping of after-treatment heating corresponding to the adjusted vehicle fuel consumption are used as fuel saving control strategies.

3. The method according to claim 1, characterized in that The controlling the operation of the vehicle to be controlled according to the engine speed and torque corresponding to the fuel saving control strategy includes: The post-processing heating is stopped, and the operation of the vehicle to be controlled is controlled according to the engine speed and torque corresponding to the fuel saving control strategy, until the switch state is turned off, and then the post-processing heating is restarted.

4. The method according to claim 1, characterized in that: After controlling the vehicle to be controlled to run according to the engine speed and torque corresponding to the fuel saving control strategy, the method further includes: Get the fuel consumption after strategy adjustment; comparing the fuel consumption before the strategy adjustment with the fuel consumption after the strategy adjustment; The fuel saving control result is determined according to the comparison result.

5. The method according to claim 4, characterized in that Determining the fuel saving control result according to the comparison result includes: Get smoke emissions; When the difference between the fuel consumption before the strategy adjustment and the fuel consumption after the strategy adjustment is greater than the preset difference, and the smoke emission is less than the smoke limit when the switch state is in the on state, it is determined that the fuel saving control result is a successful fuel saving control.

6. The method according to claim 5, characterized in that The step of determining the smoking limit includes: Controlling the power take-off switch in the calibration test bench to turn on and keep it on for a preset time, and operating the engine according to the engine speed and torque under the fuel saving control strategy to obtain a first operating result; Controlling the power take-off switch in the calibration test bench to be turned off for a preset time, and operating the engine according to the engine speed and torque under the normal control strategy to obtain a second operation result; The smoke limit is adjusted based on the first operation result and the second operation result.

7. An engine fuel saving control device, characterized in that: The device comprises: An acquisition module, used to acquire the switch status of a power take-off switch in a vehicle to be controlled; a determination module, for determining, when the switch state is in the on state, a fuel-saving control strategy when the switch state is in the on state; the fuel-saving control strategy is based on an engine operation data curve when the power take-off switch is in the on state, and is determined by adjusting the engine speed and torque; A control module is used to control the operation of the vehicle to be controlled according to the engine speed and torque corresponding to the fuel saving control strategy.

8. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 6 are implemented.

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

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

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