Refrigerator car control method, electronic equipment and storage medium

Abstract

The invention discloses a refrigerator car control method, electronic equipment and a storage medium, and relates to the technical field of refrigerator cars, the refrigerator car control method comprises the steps that vibration amplitudes of a refrigerator car cab corresponding to different rotating speeds of an engine under the engine idling working condition are obtained; the engine rotating speed corresponding to the minimum vibration amplitude is set as the effective engine rotating speed; and controlling the engine to work according to the effective rotating speed of the engine when the refrigerator is started again under the idle working condition of the engine. Resonance in the cab of the refrigerator car can be effectively reduced, the driving comfort is improved, and the driving safety is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigerated vehicles, and in particular to a refrigerated vehicle control method, electronic equipment and storage medium. Background Art

[0002] The refrigeration machine of a refrigerated truck is an important part of the refrigerated truck, which is responsible for controlling the temperature of the goods in the truck and keeping the temperature of the goods in the truck stable. However, at present, due to the existence of the refrigeration system, the refrigerated truck has a large noise, which may affect the driving of the driver in the cab and even cause driving safety problems.

[0003] The refrigeration system of a refrigerated truck has the greatest impact on noise mainly due to the compressor and cooling fan. The compressor is usually directly mounted on the engine and powered by the engine; the fan is located inside the refrigerator, and there are usually two sets of fans, which allow the cooling airflow to be quickly transferred to the refrigerator.

[0004] In the idling condition, in order to keep the temperature in the refrigerator at a constant value, the refrigerator is in working state and needs to obtain more energy from the engine, so the engine speed increases slightly. At this time, in addition to the noise of the engine body, there is also the resonance noise generated by the engine body exciting the whole vehicle subsystem mode and the noise generated by the refrigerator fan. Since the fan of the refrigerator is installed in the refrigerator above the rear wall of the cab, the noise inside the car will be significantly increased. In order to reduce the noise of the refrigerated truck at idle condition, most of them will use a low-noise refrigerator system, which reduces noise by improving bearing accuracy, controlling fan dynamic balance, and reducing compressor noise. However, there will also be problems such as high cost and complex process. Summary of the invention

[0005] The present application provides a refrigerated truck control method, an electronic device and a storage medium to at least solve at least one technical problem existing in the related art.

[0006] According to one aspect of an embodiment of the present application, a refrigerated truck control method is provided, including: obtaining the vibration amplitude of the refrigerated truck cab corresponding to different engine speeds under the engine idle condition; setting the engine speed corresponding to the minimum vibration amplitude as the engine effective speed; and when the refrigerated box cooling machine is turned on again under the engine idle condition, controlling the engine to operate according to the engine effective speed.

[0007] As an optional implementation, obtaining the vibration amplitude of the refrigerated truck cab corresponding to different engine speeds under engine idle conditions includes: controlling the engine speed to be within a preset speed range; obtaining the vibration amplitude of the refrigerated truck cab corresponding to different engine speeds within the preset speed range.

[0008] As an optional implementation, controlling the engine speed to be within a preset speed range includes: obtaining a cooling requirement of the refrigerator refrigeration machine; and determining the preset speed range according to the cooling requirement of the refrigerator refrigeration machine.

[0009] As an optional implementation, when the cold storage box refrigeration machine is restarted, it is determined whether the cooling demand of the cold storage box refrigeration machine has changed; if the cooling demand of the cold storage box refrigeration machine has changed, the preset speed range is re-determined according to the cooling demand of the cold storage box refrigeration machine.

[0010] As an optional embodiment, the refrigerated truck includes an acceleration sensor, which is arranged in the driver's cab of the refrigerated truck and is used to obtain the vibration amplitude of the driver's cab of the refrigerated truck corresponding to different engine speeds under the engine idle condition.

[0011] As an optional embodiment, the refrigerated box includes a plurality of cooling fans fixed to a side wall of the refrigerated box close to the cab; the plurality of cooling fans are arranged vertically.

[0012] As an optional implementation, it also includes: setting the cooling fans close to the driving position among the multiple groups of cooling fans as the first cooling fan group, and setting the remaining cooling fans as the second cooling fan group; controlling the first cooling fan group to reduce the speed according to the driver's noise requirement; controlling the second cooling fan group to automatically adjust the speed according to the speed of the first cooling fan group and the cooling requirement of the refrigerator refrigeration machine.

[0013] As an optional implementation, it also includes: setting the adjusted rotational speeds of the first cooling fan group and the second cooling fan group to a first effective rotational speed and a second effective rotational speed, respectively; when repeatedly turning on the cooling fan groups, controlling the first cooling fan group to operate at the first effective rotational speed, and controlling the second cooling fan group to operate at the second effective rotational speed.

[0014] According to another aspect of the present application, there is also provided an electronic device, comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus, and characterized in that the memory is used to store a computer program; and the processor is used to execute the steps of the refrigerated truck control method by running the computer program stored in the memory.

[0015] According to another aspect of the present application, a storage medium is further provided, wherein a computer program is stored in the storage medium, wherein the computer program is configured to execute the steps of the refrigerated vehicle control method when running.

[0016] In an embodiment of the present application, a refrigerated truck control method is provided, including: obtaining the vibration amplitude of the refrigerated truck cab corresponding to different engine speeds under the engine idling condition; setting the engine speed corresponding to the minimum vibration amplitude as the engine effective speed; when the refrigerated box refrigeration machine is turned on again under the engine idling condition, controlling the engine to work according to the engine effective speed. The resonance in the refrigerated truck cab can be effectively reduced, driving comfort can be improved, and driving safety can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 It is a flow chart of a refrigerated truck control method provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0021] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0022] like Figure 1 As shown, the embodiment of the present application provides a refrigerated truck control method, comprising:

[0023] S1 obtains the vibration amplitude of the refrigerated truck cab corresponding to different engine speeds under engine idling conditions;

[0024] S2 sets the engine speed corresponding to the minimum vibration amplitude as the effective engine speed;

[0025] S3 controls the engine to operate according to the effective engine speed when the refrigerator is turned on again under the engine idling condition.

[0026] Specifically, setting the engine speed corresponding to the minimum vibration amplitude as the effective engine speed can effectively reduce the resonance in the refrigerated truck cab, greatly improve driving comfort and driving safety. At the same time, when the refrigerated box cooling machine is turned on again under the engine idling condition, the engine is controlled to work according to the effective engine speed, which reduces the workload of the control module, reduces the complexity of reducing resonance, and reduces costs.

[0027] As an optional implementation, obtaining the vibration amplitude of the refrigerated truck cab corresponding to different engine speeds under engine idle conditions includes: controlling the engine speed to be within a preset speed range; obtaining the vibration amplitude of the refrigerated truck cab corresponding to different engine speeds within the preset speed range.

[0028] For example, the engine idle speed matched with the refrigerated truck is usually between 700r / min and 800r / min, which is slightly different for different engine manufacturers and is not specifically limited. In the idling condition, in order to ensure the constant temperature in the refrigerator, the engine speed is slightly increased, and the control logic is strongly related to the temperature in the refrigerator. During the development of refrigerated trucks, it is necessary to analyze the modal distribution of the whole vehicle. Because there are many parts in the cab and the modal density is large, the engine will inevitably resonate with the inherent mode of the cab or a certain internal component at certain speeds, resulting in large vibration and noise in the cab at this speed. It is very necessary to reasonably avoid the modes of the cab and internal components, and it is very difficult to identify the modes of the cab and internal components through simulation or experimental methods. Taking a 4-cylinder engine with an idle speed of 750r / min as an example, under normal circumstances, the subsystem mode of the whole vehicle needs to avoid the second-order frequency (25Hz) of the engine, that is, the mode f of most subsystems is required to be greater than 25Hz. When the refrigeration machine of the refrigerated truck is turned on, the engine speed increases and the excitation frequency is greater than 25Hz, which is particularly easy to excite the mode of the entire vehicle subsystem, thereby causing obvious resonance noise problems.

[0029] Specifically, when the refrigerator is turned on for the first time, the engine speed range is preset according to the cooling demand. By monitoring the vibration of the cab or internal components, the engine speed is automatically adjusted within the preset speed range to stabilize the speed at the effective speed corresponding to the lowest point of vibration of the cab or internal components. When the refrigerator is started again later, for the temperature at which the effective speed has been identified, the control system will automatically adjust the engine speed to the effective speed. If the driver and passengers feel that the engine speed causes discomfort, they can select the effective speed again in the same way as when the refrigerator was turned on for the first time.

[0030] As an optional implementation, controlling the engine speed to be within a preset speed range includes: obtaining a cooling requirement of the refrigerator refrigeration machine; and determining the preset speed range according to the cooling requirement of the refrigerator refrigeration machine.

[0031] As an optional implementation, when the cold storage box refrigeration machine is restarted, it is determined whether the cooling demand of the cold storage box refrigeration machine has changed; if the cooling demand of the cold storage box refrigeration machine has changed, the preset speed range is re-determined according to the cooling demand of the cold storage box refrigeration machine.

[0032] As an optional embodiment, the refrigerated truck includes an acceleration sensor, which is arranged in the driver's cab of the refrigerated truck and is used to obtain the vibration amplitude of the driver's cab of the refrigerated truck corresponding to different engine speeds under the engine idle condition.

[0033] As an optional embodiment, the refrigerated box includes a plurality of cooling fans fixed to a side wall of the refrigerated box close to the cab; the plurality of cooling fans are arranged vertically.

[0034] As an optional implementation, it also includes: setting the cooling fans close to the driving position among the multiple groups of cooling fans as the first cooling fan group, and setting the remaining cooling fans as the second cooling fan group; controlling the first cooling fan group to reduce the speed according to the driver's noise requirement; controlling the second cooling fan group to automatically adjust the speed according to the speed of the first cooling fan group and the cooling requirement of the refrigerator refrigeration machine.

[0035] As an optional implementation, it also includes: setting the adjusted rotational speeds of the first cooling fan group and the second cooling fan group to a first effective rotational speed and a second effective rotational speed, respectively; when repeatedly turning on the cooling fan groups, controlling the first cooling fan group to operate at the first effective rotational speed, and controlling the second cooling fan group to operate at the second effective rotational speed.

[0036] For example, under normal circumstances, the speed of the cooling fan can be 3000r / min. The cab can manually control the cooling fan on the side close to the cab to gradually reduce the speed. At the same time, the cooling fan on the side away from the cab will automatically increase the speed according to temperature requirements. When the speed of the cooling fan on the side close to the cab is adjusted to 2500r / min, the speed of the cooling fan on the side away from the cab is automatically adjusted to 3500r / min. At this time, the cab feels that the noise inside the car is significantly reduced, and the speed can be locked as the effective speed of the cooling fan.

[0037] According to another aspect of the present application, there is also provided an electronic device, comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus, and characterized in that the memory is used to store a computer program; and the processor is used to execute the steps of the refrigerated truck control method by running the computer program stored in the memory.

[0038] According to another aspect of the present application, a storage medium is further provided, wherein a computer program is stored in the storage medium, wherein the computer program is configured to execute the steps of the refrigerated vehicle control method when running.

[0039] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0040] If the integrated units in the above embodiments are implemented in the form of software functional units and sold or used as independent products, they can be stored in the above computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling one or more electronic devices (such as personal computers, servers, or network devices) to perform all or part of the steps of the methods described in the various embodiments of the present application.

[0041] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0042] In the several embodiments provided in the present application, it should be understood that the disclosed client can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0043] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution provided in this embodiment.

[0044] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0045] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0046] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A refrigerated truck control method, It is characterized in that include: Obtain the vibration amplitude of the refrigerated truck cab corresponding to different engine speeds under engine idling conditions; The engine speed corresponding to the minimum vibration amplitude is set as the engine effective speed; When the refrigerator is turned on again under the engine idling condition, the engine is controlled to operate according to the effective engine speed.

2. The refrigerated vehicle control method according to claim 1, It is characterized in that The method of obtaining the vibration amplitude of the refrigerated truck cab corresponding to different engine speeds under the engine idling condition includes: Control the engine speed within a preset speed range; The vibration amplitude of the cab of the refrigerated truck corresponding to different engine speeds within the preset speed range is obtained.

3. The refrigerated vehicle control method according to claim 2, It is characterized in that The controlling the engine speed to be within a preset speed range comprises: Obtaining a cooling requirement of the refrigerator; The preset speed range is determined according to the cooling demand of the refrigerator refrigeration machine.

4. The refrigerated vehicle control method according to claim 3, It is characterized in that Also includes: When the refrigerator is restarted, determining whether the cooling demand of the refrigerator has changed; If the cooling demand of the refrigerator refrigeration machine changes, the preset speed range is re-determined according to the cooling demand of the refrigerator refrigeration machine.

5. The refrigerated vehicle control method according to claim 1, It is characterized in that The refrigerated truck includes an acceleration sensor, which is arranged in the driving cab of the refrigerated truck and is used to obtain the vibration amplitude of the driving cab of the refrigerated truck corresponding to different engine speeds under the engine idling condition.

6. The refrigerated vehicle control method according to claim 1, It is characterized in that The refrigerator box includes a plurality of cooling fans fixed to a side wall of the refrigerator box close to the cab; the plurality of cooling fans are arranged vertically.

7. The refrigerated vehicle control method according to claim 6, It is characterized in that Also includes: The cooling fans close to the driving position in the plurality of cooling fan groups are set as the first cooling fan group, and the remaining cooling fans are set as the second cooling fan group; Controlling the first cooling fan group to reduce the speed according to the noise requirement of the driver; The second cooling fan group is controlled to automatically adjust the speed according to the speed of the first cooling fan group and the cooling demand of the refrigerator refrigeration machine.

8. The refrigerated vehicle control method according to claim 7, It is characterized in that Also includes: respectively setting the adjusted rotational speed of the first cooling fan group and the rotational speed of the second cooling fan group to a first effective rotational speed and a second effective rotational speed; When the cooling fan group is repeatedly turned on, the first cooling fan group is controlled to operate at the first effective speed, and the second cooling fan group is controlled to operate at the second effective speed.

9. An electronic device comprising a processor, a communication interface, a memory and a communication bus, in, The processor, the communication interface and the memory communicate with each other via the communication bus, wherein: The memory is used to store computer programs; The processor is used to execute the steps of the refrigerated vehicle control method according to any one of claims 1 to 8 by running the computer program stored in the memory.

10. A computer-readable storage medium, It is characterized in that The storage medium stores a computer program, wherein the computer program is configured to execute the steps of the refrigerated vehicle control method according to any one of claims 1 to 8 when running.

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