A clutch fan rotating speed abnormality monitoring method, device, equipment and medium

Abstract

The application discloses a kind of clutch fan rotation speed abnormality monitoring method, device, equipment and medium.The clutch fan rotation speed abnormality monitoring method includes: obtaining the current operating state of the engine of vehicle, and according to the current operating state of the engine, determine the target fan rotation speed abnormality early warning condition of electric control silicon oil clutch;When the electric control silicon oil clutch fan meets the target fan rotation speed abnormality early warning condition, trigger target timer, and when target timer timing overflow, generate fan rotation speed abnormality early warning signal.The technical scheme of the embodiment of the application can discover fan rotation speed abnormality in time and prompt user, to avoid the closed-loop control failure of electric control silicon oil clutch fan, guarantee user driving safety.

Description

Technical Field

[0001] This invention relates to the field of vehicle fault identification technology, and in particular to a method, device, equipment and medium for monitoring abnormal clutch fan speed. Background Technology

[0002] Electronically controlled silicone oil clutch fans are widely used in various medium and heavy-duty commercial vehicles due to their precise control advantages. These fans achieve closed-loop control of fan speed through feedback of the fan speed signal.

[0003] However, in reality, due to various reasons (such as a loose connection in the speed sensor signal line, electromagnetic interference, etc.), abnormal fan speed signals may occur, i.e., unreliable fan speed signals. When an unreliable fan speed signal occurs, the closed-loop control of the electronically controlled silicone oil clutch fan will fail, and the fan speed cannot be controlled normally. The actual fan speed will be higher or lower than the target control speed, which may further cause the engine coolant temperature to be too low, fuel consumption to increase, or engine coolant temperature to be too high during vehicle operation, and may even lead to engine cylinder scoring. Summary of the Invention

[0004] This invention provides a method, device, equipment, and medium for monitoring abnormal clutch fan speed, in order to solve the problem that failure to detect abnormal fan speed in a timely manner leads to users being unable to understand the closed-loop control failure of the electronically controlled silicone oil clutch fan, thus affecting driving safety.

[0005] According to one aspect of the present invention, a method for monitoring abnormal clutch fan speed is provided, comprising:

[0006] Obtain the current operating status of the vehicle's engine, and determine the target fan speed abnormality warning condition for the electronically controlled silicone oil clutch based on the current operating status of the engine;

[0007] When the electronically controlled silicone oil clutch fan meets the target fan speed abnormality warning condition, the target timer is triggered, and when the target timer overflows, a fan speed abnormality warning signal is generated.

[0008] According to another aspect of the present invention, a clutch fan speed abnormality detection device is provided, comprising:

[0009] The abnormal engine speed warning condition determination module is used to obtain the current operating status of the vehicle's engine and determine the target fan speed abnormality warning condition of the electronically controlled silicone oil clutch based on the current operating status of the engine.

[0010] The abnormal speed warning signal generation module is used to trigger the target timer when the electronically controlled silicone oil clutch fan meets the target fan speed abnormal warning conditions, and to generate a fan speed abnormal warning signal when the target timer overflows.

[0011] According to another aspect of the present invention, an electronic device is provided, the electronic device comprising:

[0012] At least one processor; and

[0013] A memory communicatively connected to the at least one processor; wherein,

[0014] The memory stores a computer program that can be executed by the at least one processor, which enables the at least one processor to perform the clutch fan speed abnormality monitoring method according to any embodiment of the present invention.

[0015] According to another aspect of the present invention, a computer-readable storage medium is provided, the computer-readable storage medium storing computer instructions for causing a processor to execute and implement the clutch fan speed abnormality monitoring method according to any embodiment of the present invention.

[0016] The technical solution of this invention obtains the current operating state of the vehicle's engine and determines the target fan speed abnormality warning condition for the electronically controlled silicone oil clutch based on the current engine operating state. Then, when the electronically controlled silicone oil clutch fan meets the target fan speed abnormality warning condition, a target timer is triggered, and a fan speed abnormality warning signal is generated when the target timer overflows. In this solution, the target fan speed abnormality warning condition determined based on the current engine operating state achieves a classification of fan speed abnormality judgment based on the engine operating state, which is more consistent with the actual fan speed abnormality judgment. Furthermore, when the electronically controlled silicone oil clutch fan meets the target fan speed abnormality warning condition, the duration for which the target fan speed abnormality warning condition is met is further monitored based on the target timer to issue a warning when the timer expires, preventing false alarms and ensuring reliable warnings when the fan speed is abnormal. This solves the problem of failure to detect fan speed abnormalities in a timely manner, leading to users being unaware of the closed-loop control failure of the electronically controlled silicone oil clutch fan, thus affecting driving safety. It enables timely detection of fan speed abnormalities and alerts the user, allowing the user to promptly understand the closed-loop control failure of the electronically controlled silicone oil clutch fan and ensuring user driving safety.

[0017] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a flowchart of a method for monitoring abnormal clutch fan speed provided in Embodiment 1 of the present invention;

[0020] Figure 2 This is a flowchart of a method for monitoring abnormal clutch fan speed according to Embodiment 2 of the present invention;

[0021] Figure 3 This is a schematic diagram of a clutch fan speed abnormality monitoring logic provided in Embodiment 2 of the present invention;

[0022] Figure 4 This is a schematic diagram of a fan speed abnormality handling logic provided in Embodiment 2 of the present invention;

[0023] Figure 5 This is a schematic diagram of a clutch fan speed abnormality detection device provided in Embodiment 3 of the present invention;

[0024] Figure 6 A schematic diagram of an electronic device that can be used to implement embodiments of the present invention is shown. Detailed Implementation

[0025] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0026] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0027] Example 1

[0028] Figure 1 This is a flowchart of a method for monitoring abnormal clutch fan speed according to Embodiment 1 of the present invention. This embodiment is applicable to timely identification of abnormal fan speed in electronically controlled silicone oil clutches. The method can be executed by a clutch fan speed abnormality detection device, which can be implemented in hardware and / or software and can be configured in an electronic device. The electronic device may include, but is not limited to, an in-vehicle terminal. Figure 1 As shown, the method includes:

[0029] Step 110: Obtain the current operating status of the vehicle's engine, and determine the abnormal target fan speed warning condition of the electronically controlled silicone oil clutch based on the current operating status of the engine.

[0030] The current engine operating status reflects the condition of the vehicle's engine. This status can include both started and stopped states. The abnormal target fan speed warning condition can be a condition that matches the current engine operating status and determines whether the clutch fan speed of the electronically controlled silicone oil clutch is abnormal. This abnormal target fan speed warning condition can be stored in the on-board terminal's memory.

[0031] In this embodiment of the invention, the current operating status of the vehicle's engine can be obtained first, and then, based on the current operating status of the engine, a target fan speed abnormality warning condition corresponding to the current operating status of the engine can be determined to determine whether the clutch fan speed of the electronically controlled silicone oil clutch is abnormal.

[0032] Optionally, when the engine is currently in a starting state, the starting state can be further divided into a first starting state (minimum power operating state) and a second starting state (maximum power operating state). The abnormal target fan speed warning conditions corresponding to different engine operating states will also differ.

[0033] Step 120: When the electronically controlled silicone oil clutch fan meets the target fan speed abnormality warning condition, trigger the target timer, and generate a fan speed abnormality warning signal when the target timer overflows.

[0034] The target timer can be any timer with timing functionality. Optionally, the target timer can correspond to a target fan speed abnormality warning condition; for example, the timing duration of the target timer can differ for different target fan speed abnormality warning conditions. Alternatively, the target timer can not correspond to a target fan speed abnormality warning condition, and the timing duration of the target timer can be the same for different target fan speed abnormality warning conditions. The fan speed abnormality warning signal can be a signal that alerts the user to an abnormal fan speed in the electronically controlled silicone oil clutch fan, allowing the user to perform vehicle maintenance as soon as possible based on this signal. The fan speed abnormality warning signal can be a text signal and / or a voice signal. The fan speed abnormality warning signal can be broadcast and displayed through the vehicle terminal.

[0035] In this embodiment of the invention, data associated with fan anomaly detection corresponding to the target fan speed anomaly warning condition can be acquired. This data is then compared with the target fan speed anomaly warning condition. If the data associated with fan anomaly detection meets the target fan speed anomaly warning condition, it is determined that the electronically controlled silicone oil clutch fan meets the target fan speed anomaly warning condition. A target timer is then triggered synchronously, and when the target timer overflows, a fan speed anomaly warning signal is generated to alert the user that the electronically controlled silicone oil clutch fan's fan speed is abnormal. This allows the user to promptly check the vehicle's condition, repair the vehicle as soon as possible, and prevent further damage to the vehicle due to the malfunction. If the data associated with fan anomaly detection does not meet the target fan speed anomaly warning condition, it is determined that the electronically controlled silicone oil clutch fan does not meet the target fan speed anomaly warning condition. In this case, there is no need to trigger the target timer, and it can be determined that the fan speed of the electronically controlled silicone oil clutch fan is not abnormal.

[0036] Optionally, after generating an abnormal fan speed warning signal, open-loop control of the electronically controlled silicone oil clutch fan can be implemented to ensure that the engine coolant temperature does not become too high or too low before the user performs vehicle maintenance.

[0037] The technical solution of this invention obtains the current operating state of the vehicle's engine and determines the target fan speed abnormality warning condition for the electronically controlled silicone oil clutch based on the current engine operating state. Then, when the electronically controlled silicone oil clutch fan meets the target fan speed abnormality warning condition, a target timer is triggered, and a fan speed abnormality warning signal is generated when the target timer overflows. In this solution, the target fan speed abnormality warning condition determined based on the current engine operating state achieves a classification of fan speed abnormality judgment based on the engine operating state, which is more consistent with the actual fan speed abnormality judgment. Furthermore, when the electronically controlled silicone oil clutch fan meets the target fan speed abnormality warning condition, the duration for which the target fan speed abnormality warning condition is met is further monitored based on the target timer to issue a warning when the timer expires, preventing false alarms and ensuring reliable warnings when the fan speed is abnormal. This solves the problem of failure to detect fan speed abnormalities in a timely manner, leading to users being unaware of the closed-loop control failure of the electronically controlled silicone oil clutch fan, thus affecting driving safety. It enables timely detection of fan speed abnormalities and alerts the user, allowing the user to promptly understand the closed-loop control failure of the electronically controlled silicone oil clutch fan and ensuring user driving safety.

[0038] Example 2

[0039] Figure 2 This is a flowchart of a clutch fan speed abnormality monitoring method provided in Embodiment 2 of the present invention. This embodiment is based on the above embodiment and is further specified, providing specific optional implementation methods for determining the target fan speed abnormality warning conditions of the electronically controlled silicone oil clutch according to the current engine operating state. Figure 2 As shown, the method includes:

[0040] Step 210: Obtain the current operating status of the vehicle's engine, and based on the current operating status of the engine, obtain a set of warning conditions for abnormal fan speed.

[0041] Step 220: When the engine is currently in an off state, take the first abnormal fan speed warning condition in the set of abnormal fan speed warning conditions as the target abnormal fan speed warning condition.

[0042] The set of abnormal fan speed warning conditions can be a pre-set set of warning conditions for identifying abnormal fan speed. The first abnormal fan speed warning condition can be a condition in the set of abnormal fan speed warning conditions used to determine that the fan speed is abnormal when the engine is currently in a non-started state.

[0043] In this embodiment of the invention, if it is determined that the current operating state of the engine is not started, the first fan speed abnormality warning condition corresponding to the engine not started state is retrieved from the set of fan speed abnormality warning conditions, and the first fan speed abnormality warning condition is used as the target fan speed abnormality warning condition.

[0044] Step 230: When the engine is currently running in the start state, acquire the PWM signal of the fan speed regulator.

[0045] In this embodiment of the invention, if it is determined that the current operating state of the engine is the start state, the PWM (Pulse Width Modulation) signal of the fan speed regulator of the electronically controlled silicone oil clutch is further obtained.

[0046] Step 240: When the amplitude of the PWM signal is the first amplitude, take the second fan speed abnormality warning condition in the fan speed abnormality warning condition set as the target fan speed abnormality warning condition.

[0047] The first amplitude can be the amplitude of the PWM signal of the fan of the electronically controlled silicone oil clutch at minimum power. For example, the first amplitude can be 0. The second abnormal fan speed warning condition can be a condition in the set of abnormal fan speed warning conditions used to determine that the fan speed is abnormal when the engine is currently running in the start state and the amplitude of the PWM signal is the first amplitude.

[0048] In this embodiment of the invention, if the current operating state of the engine is the start-up state and the amplitude of the PWM signal is the first amplitude, that is, indicating that the current operating state of the engine is specifically the first start-up state, then from the set of abnormal fan speed warning conditions, a second abnormal fan speed warning condition is determined when the current operating state of the engine is the start-up state and the amplitude of the PWM signal is the first amplitude, and the abnormal fan speed is judged as the second abnormal fan speed warning condition, thereby using the second abnormal fan speed warning condition as the target abnormal fan speed warning condition.

[0049] Step 250: When the amplitude of the PWM signal is the second amplitude, take the third fan speed abnormality warning condition in the set of fan speed abnormality warning conditions as the target fan speed abnormality warning condition.

[0050] The second amplitude can be the amplitude of the PWM signal when the fan of the electronically controlled silicone oil clutch rotates at maximum power. For example, the second amplitude can be 100.

[0051] In this embodiment of the invention, if the current operating state of the engine is the start-up state and the amplitude of the PWM signal is the second amplitude, that is, indicating that the current operating state of the engine is specifically the second start-up state, then from the set of abnormal fan speed warning conditions, when it is determined that the current operating state of the engine is the start-up state and the amplitude of the PWM signal is the second amplitude, the third abnormal fan speed warning condition is identified, and the third abnormal fan speed warning condition is used as the target abnormal fan speed warning condition.

[0052] Step 260: When the electronically controlled silicone oil clutch fan meets the target fan speed abnormality warning condition, trigger the target timer, and generate a fan speed abnormality warning signal when the target timer overflows.

[0053] In an optional embodiment of the present invention, triggering a target timer when the electronically controlled silicone oil clutch fan meets the target fan speed abnormality warning condition may include: triggering the target timer when the electronically controlled silicone oil clutch fan meets any one of the first fan speed abnormality warning condition, the second fan speed abnormality warning condition, or the third fan speed abnormality warning condition.

[0054] Specifically, when the electronically controlled silicone oil clutch fan meets any one of the following conditions: the first abnormal fan speed warning condition, the second abnormal fan speed warning condition, or the third abnormal fan speed warning condition, the target timer can be triggered synchronously.

[0055] In an optional embodiment of the present invention, the electronically controlled silicone oil clutch fan meeting the first fan speed abnormality warning condition may include: if the engine is currently in an off-state and the real-time fan speed is greater than a first speed threshold, then it is determined that the electronically controlled silicone oil clutch fan meets the first fan speed abnormality warning condition.

[0056] The first speed threshold can be a pre-set threshold compared to the real-time fan speed when the engine is in an off-state. The first speed threshold can be 0. The real-time fan speed is the current speed of the fan controlled by the electronically controlled silicone oil clutch.

[0057] In this embodiment of the invention, after determining the current operating state of the engine, the real-time speed of the fan can be obtained. When the current operating state of the engine is not started, the real-time speed of the fan can be compared with a first speed threshold. If the real-time speed of the fan is greater than the first speed threshold, it can be determined that the electronically controlled silicone oil clutch fan meets the first abnormal fan speed warning condition.

[0058] In an optional embodiment of the present invention, the electronically controlled silicone oil clutch fan meeting the second fan speed abnormality warning condition may include: when the engine is currently in the start state, the amplitude of the PWM signal is the first amplitude, and the real-time fan speed is less than the second speed threshold, then it is determined that the electronically controlled silicone oil clutch fan meets the second fan speed abnormality warning condition.

[0059] The second speed threshold can be a pre-set threshold that compares the real-time fan speed with the first amplitude when the engine is currently running and the PWM signal amplitude is the same. The second speed threshold can be, but is not limited to, 500 rpm.

[0060] In this embodiment of the invention, after determining the current operating state of the engine, the real-time speed of the fan can be obtained. If the current operating state of the engine is the start state, the amplitude of the PWM signal is further obtained. When the amplitude of the PWM signal is the first amplitude and the real-time speed of the fan is greater than the second speed threshold, it can be determined that the electronically controlled silicone oil clutch fan meets the second fan speed abnormality warning condition.

[0061] In an optional embodiment of the present invention, the electronically controlled silicone oil clutch fan meeting the third fan speed abnormality warning condition may include: when the engine is currently running in the start state, the amplitude of the PWM signal is the second amplitude, the absolute difference between the real-time fan speed and the engine speed does not fall into the third speed threshold range, and the engine speed signal is a normal signal, then it is determined that the electronically controlled silicone oil clutch fan meets the third fan speed abnormality warning condition.

[0062] The absolute difference can be the absolute value of the difference between two data points. The third speed threshold range can be a pre-set speed range used to compare with the absolute difference between the real-time fan speed and the engine speed. For example, the third speed threshold range can include, but is not limited to, (0 rpm, 100 rpm).

[0063] In this embodiment of the invention, if the engine is currently in the start state, the amplitude of the PWM signal, the real-time fan speed, the engine speed signal, and the engine speed are obtained. Then, when the amplitude of the PWM signal is the second amplitude, the absolute difference between the real-time fan speed and the engine speed is calculated. The calculated absolute difference is then compared with the third speed threshold range. If the absolute difference between the real-time fan speed and the engine speed does not fall into the third speed threshold range, and the engine speed signal is a normal signal, then it is determined that the electronically controlled silicone oil clutch fan meets the third fan speed abnormality warning condition.

[0064] Optionally, the fan speed abnormality warning signal can be divided into at least two levels. The highest-level warning signal is generated when the electronically controlled silicone oil clutch fan meets the third fan speed abnormality warning condition and the target timer overflows. A lower-level warning signal is generated when the electronically controlled silicone oil clutch fan meets the second or first fan speed abnormality warning condition and the target timer overflows.

[0065] The technical solution of this invention obtains the current operating state of the vehicle's engine and, based on the current operating state, obtains a set of abnormal fan speed warning conditions. When the engine is not running, the first abnormal fan speed warning condition in the set is used as the target abnormal fan speed warning condition. When the engine is running, the PWM signal of the fan speed regulator is obtained. When the amplitude of the PWM signal is a first value, the second abnormal fan speed warning condition in the set is used as the target abnormal fan speed warning condition. When the amplitude of the PWM signal is a second value, the third abnormal fan speed warning condition in the set is used as the target abnormal fan speed warning condition. When the electronically controlled silicone oil clutch fan meets the target abnormal fan speed warning condition, a target timer is triggered, and when the target timer overflows, a fan speed abnormal warning signal is generated.

[0066] In a specific example, when the engine is not started, the silicone oil clutch fan should also have no speed. After the engine starts, when the PWM output of the fan speed PID controller is 0, the fan clutch transmits minimum torque, and the fan operates at minimum speed. However, due to mechanical limitations, the fan speed will not be lower than a specific threshold (the second speed threshold). After the engine starts, when the amplitude of the PWM signal output of the fan speed PID controller is 100, the fan clutch is fully engaged, and the fan should operate at the same speed as the engine. Based on the above principle, the design is as follows: Figure 3 The clutch fan speed abnormality monitoring logic is shown below.

[0067] Figure 4 This is a schematic diagram of a fan speed abnormality handling logic provided in Embodiment 2 of the present invention, as shown below. Figure 4 As shown, the PWM signal output by the fan speed controller of the electronically controlled silicone oil clutch and the real-time fan speed are acquired in real time. Based on the PWM signal, the real-time fan speed, and the target fan speed abnormality warning conditions, it is determined whether there is an abnormality in the fan speed signal. If an abnormality is found, a fan speed abnormality warning signal is generated and prompted. If no abnormality is found, the process returns to the step of determining whether there is an abnormality in the fan speed signal.

[0068] This solution determines the target fan speed anomaly warning conditions based on the current engine operating status, thus enabling the classification of fan speed anomaly judgments based on engine operating status. This approach more accurately reflects actual fan speed anomaly detection. When the electronically controlled silicone oil clutch fan meets the target fan speed anomaly warning conditions, a target timer is used to monitor the duration of the condition. This ensures a warning is issued when the timer expires, preventing false alarms and guaranteeing reliable warnings when fan speed anomalies occur. This solution addresses the problem of undetected fan speed anomalies leading to user unawareness of closed-loop control failures in the electronically controlled silicone oil clutch fan, which impacts driving safety. It enables timely detection and alerts to users regarding fan speed anomalies, ensuring their safety during driving.

[0069] Example 3

[0070] Figure 5 This is a schematic diagram of a clutch fan speed abnormality detection device provided in Embodiment 3 of the present invention. Figure 5 As shown, the device includes: a speed abnormality early warning condition determination module 310 and a speed abnormality early warning signal generation module 320, wherein,

[0071] The abnormal speed warning condition determination module 310 is used to obtain the current operating status of the vehicle's engine and determine the target fan speed abnormality warning condition of the electronically controlled silicone oil clutch based on the current operating status of the engine.

[0072] The abnormal speed warning signal generation module 320 is used to trigger the target timer when the electronically controlled silicone oil clutch fan meets the target fan speed abnormal warning conditions, and to generate a fan speed abnormal warning signal when the target timer overflows.

[0073] The technical solution of this invention obtains the current operating state of the vehicle's engine and determines the target fan speed abnormality warning condition for the electronically controlled silicone oil clutch based on the current engine operating state. Then, when the electronically controlled silicone oil clutch fan meets the target fan speed abnormality warning condition, a target timer is triggered, and a fan speed abnormality warning signal is generated when the target timer overflows. In this solution, the target fan speed abnormality warning condition determined based on the current engine operating state achieves a classification of fan speed abnormality judgment based on the engine operating state, which is more consistent with the actual fan speed abnormality judgment. Furthermore, when the electronically controlled silicone oil clutch fan meets the target fan speed abnormality warning condition, the duration for which the target fan speed abnormality warning condition is met is further monitored based on the target timer to issue a warning when the timer expires, preventing false alarms and ensuring reliable warnings when the fan speed is abnormal. This solves the problem of failure to detect fan speed abnormalities in a timely manner, leading to users being unaware of the closed-loop control failure of the electronically controlled silicone oil clutch fan, thus affecting driving safety. It enables timely detection of fan speed abnormalities and alerts the user, allowing the user to promptly understand the closed-loop control failure of the electronically controlled silicone oil clutch fan and ensuring user driving safety.

[0074] Optionally, the abnormal speed warning condition determination module 310 includes a target fan speed abnormality warning condition determination unit, used to obtain a set of fan speed abnormality warning conditions; when the current operating state of the engine is an unstarted state, the first fan speed abnormality warning condition in the set of fan speed abnormality warning conditions is used as the target fan speed abnormality warning condition.

[0075] Optionally, the target fan speed abnormality warning condition determination unit is further configured to: acquire the pulse width modulation (PWM) signal of the fan speed regulator when the current operating state of the engine is the start state; when the amplitude of the PWM signal is a first amplitude, use the second fan speed abnormality warning condition in the set of fan speed abnormality warning conditions as the target fan speed abnormality warning condition; and when the amplitude of the PWM signal is a second amplitude, use the third fan speed abnormality warning condition in the set of fan speed abnormality warning conditions as the target fan speed abnormality warning condition.

[0076] Optionally, the abnormal speed warning signal generation module 320 includes a target timer triggering unit, which is used to trigger the target timer when the electronically controlled silicone oil clutch fan meets any one of the first fan speed abnormality warning conditions, the second fan speed abnormality warning conditions, or the third fan speed abnormality warning conditions.

[0077] Optionally, the target timer triggering unit includes a warning condition discrimination subunit, which is used to determine that the electronically controlled silicone oil clutch fan meets the first fan speed abnormality warning condition when the engine is currently in an unstarted state and the real-time fan speed is greater than a first speed threshold.

[0078] Optionally, the warning condition discrimination subunit is used to determine that the electronically controlled silicone oil clutch fan meets the second fan speed abnormality warning condition when the engine is currently in the start state, the amplitude of the PWM signal is the first amplitude, and the real-time fan speed is less than the second speed threshold.

[0079] Optionally, the warning condition discrimination subunit is used to determine that the electronically controlled silicone oil clutch fan meets the third fan speed abnormality warning condition when the current operating state of the engine is the start state, the amplitude of the PWM signal is the second amplitude, the absolute difference between the real-time fan speed and the engine speed does not fall into the third speed threshold range, and the engine speed signal is a normal signal.

[0080] The clutch fan speed abnormality detection device provided in this embodiment of the invention can execute the clutch fan speed abnormality monitoring method provided in any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0081] Example 4

[0082] Figure 6 A schematic diagram of an electronic device that can be used to implement embodiments of the present invention is shown. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the invention described and / or claimed herein.

[0083] like Figure 6 As shown, the electronic device 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12 or a random access memory (RAM) 13, communicatively connected to the at least one processor 11. The memory stores computer programs executable by the at least one processor. The processor 11 can perform various appropriate actions and processes based on the computer program stored in the ROM 12 or loaded from storage unit 18 into the RAM 13. The RAM 13 may also store various programs and data required for the operation of the electronic device 10. The processor 11, ROM 12, and RAM 13 are interconnected via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0084] Multiple components in electronic device 10 are connected to I / O interface 15, including: input unit 16, such as keyboard, mouse, etc.; output unit 17, such as various types of displays, speakers, etc.; storage unit 18, such as disk, optical disk, etc.; and communication unit 19, such as network card, modem, wireless transceiver, etc. Communication unit 19 allows electronic device 10 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0085] Processor 11 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. Processor 11 performs the various methods and processes described above, such as the clutch fan speed abnormality monitoring method.

[0086] In some embodiments, the clutch fan speed abnormality monitoring method may be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on electronic device 10 via ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the clutch fan speed abnormality monitoring method described above may be performed. Alternatively, in other embodiments, processor 11 may be configured to perform the clutch fan speed abnormality monitoring method by any other suitable means (e.g., by means of firmware).

[0087] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0088] Computer programs used to implement the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0089] In the context of this invention, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0090] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0091] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or computing systems that include middleware components (e.g., application servers), or computing systems that include frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0092] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system to address the shortcomings of traditional physical hosts and VPS services, such as high management difficulty and weak business scalability.

[0093] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0094] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A method for monitoring abnormal clutch fan speed, characterized in that, include: The current operating status of the vehicle's engine is obtained, and based on the current operating status of the engine, the target fan speed abnormality warning condition of the electronically controlled silicone oil clutch is determined. When the electronically controlled silicone oil clutch fan meets the target fan speed abnormality warning condition, the target timer is triggered, and when the target timer overflows, a fan speed abnormality warning signal is generated. The abnormal target fan speed warning conditions for the electronically controlled silicone oil clutch are determined based on the current operating status of the engine, including: Obtain the set of warning conditions for abnormal fan speed; When the engine is currently in an unstarted state, the first fan speed abnormality warning condition in the set of fan speed abnormality warning conditions is used as the target fan speed abnormality warning condition. The first abnormal fan speed warning condition is that the engine is currently not running and the real-time fan speed is greater than the first speed threshold. Among them, the set of pre-set warning conditions for abnormal fan speed is a set of pre-set warning conditions for judging abnormal fan speed; The method for determining the abnormal target fan speed warning condition of the electronically controlled silicone oil clutch based on the current operating status of the engine also includes: When the engine is currently in the start state, the pulse width modulation (PWM) signal of the fan speed regulator is acquired. When the amplitude of the PWM signal is the first amplitude, the second fan speed abnormality warning condition in the set of fan speed abnormality warning conditions is used as the target fan speed abnormality warning condition. When the amplitude of the PWM signal is the second amplitude, the third fan speed abnormality warning condition in the set of fan speed abnormality warning conditions is used as the target fan speed abnormality warning condition. The electronically controlled silicone oil clutch fan meets the second fan speed abnormality warning conditions, including: When the engine is currently in the start-up state, the amplitude of the PWM signal is the first amplitude, and the real-time fan speed is less than the second speed threshold, it is determined that the electronically controlled silicone oil clutch fan meets the second fan speed abnormality warning condition. The electronically controlled silicone oil clutch fan meets the abnormal speed warning conditions of the third fan, including: When the engine is currently running in the start state, the amplitude of the PWM signal is the second amplitude, the absolute difference between the real-time fan speed and the engine speed does not fall into the third speed threshold range, and the engine speed signal is a normal signal, then it is determined that the electronically controlled silicone oil clutch fan meets the third fan speed abnormality warning condition. The first amplitude is the amplitude of the PWM signal of the fan of the electronically controlled silicone oil clutch at minimum power; the second amplitude is the amplitude of the PWM signal of the fan of the electronically controlled silicone oil clutch at maximum power.

2. The method according to claim 1, characterized in that, When the electronically controlled silicone oil clutch fan meets the target fan speed abnormality warning condition, the target timer is triggered, including: The target timer is triggered when the electronically controlled silicone oil clutch fan meets any one of the following conditions: the first abnormal fan speed warning condition, the second abnormal fan speed warning condition, or the third abnormal fan speed warning condition.

3. A clutch fan speed abnormality detection device, characterized in that, include: The abnormal speed warning condition determination module is used to obtain the current operating status of the vehicle's engine and determine the target fan speed abnormality warning condition of the electronically controlled silicone oil clutch based on the current operating status of the engine. The abnormal speed warning signal generation module is used to trigger a target timer when the electronically controlled silicone oil clutch fan meets the target fan speed abnormal warning condition, and to generate a fan speed abnormal warning signal when the target timer overflows. The abnormal target fan speed warning conditions for the electronically controlled silicone oil clutch are determined based on the current operating status of the engine, including: Obtain the set of warning conditions for abnormal fan speed; When the engine is currently in an unstarted state, the first fan speed abnormality warning condition in the set of fan speed abnormality warning conditions is used as the target fan speed abnormality warning condition. The first abnormal fan speed warning condition is that the engine is currently not running and the real-time fan speed is greater than the first speed threshold. Among them, the set of pre-set warning conditions for abnormal fan speed is a set of pre-set warning conditions for judging abnormal fan speed; The abnormal fan speed warning condition determination module includes a target fan speed abnormality warning condition determination unit, which is specifically used for: When the engine is currently in the start state, the pulse width modulation (PWM) signal of the fan speed regulator is acquired; when the amplitude of the PWM signal is a first amplitude, the second fan speed abnormality warning condition in the set of fan speed abnormality warning conditions is used as the target fan speed abnormality warning condition; when the amplitude of the PWM signal is a second amplitude, the third fan speed abnormality warning condition in the set of fan speed abnormality warning conditions is used as the target fan speed abnormality warning condition. The abnormal speed warning signal generation module includes a warning condition discrimination subunit, which is specifically used for: When the engine is currently in the start-up state, the amplitude of the PWM signal is the first amplitude, and the real-time fan speed is less than the second speed threshold, it is determined that the electronically controlled silicone oil clutch fan meets the second fan speed abnormality warning condition. The early warning condition discrimination subunit is also used for: When the engine is currently running in the start state, the amplitude of the PWM signal is the second amplitude, the absolute difference between the real-time fan speed and the engine speed does not fall into the third speed threshold range, and the engine speed signal is a normal signal, then it is determined that the electronically controlled silicone oil clutch fan meets the third fan speed abnormality warning condition. The first amplitude is the amplitude of the PWM signal of the fan of the electronically controlled silicone oil clutch at minimum power; the second amplitude is the amplitude of the PWM signal of the fan of the electronically controlled silicone oil clutch at maximum power.

4. An electronic device, characterized in that, The electronic device includes: At least one processor; and A memory communicatively connected to the at least one processor; wherein, The memory stores a computer program that can be executed by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the clutch fan speed abnormality monitoring method according to any one of claims 1-2.

5. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that cause a processor to execute the clutch fan speed abnormality monitoring method according to any one of claims 1-2.

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