TWI745802B - A method for monitoring a vehicle abnormality - Google Patents

Abstract

The invention provides a method for monitoring a vehicle abnormality, which uses a sensing element disposed on a vibration source of a vehicle, the sensing element senses the vibration source and generates a vibration value, and then uses a processor to receive the vibration source, and compares the vibration value with a The size of the preset vibration value When the vibration value is greater than the preset vibration value, it indicates that the vibration source has an abnormality or a fault, and the processor generates an abnormal signal, the electronic device receives the abnormal signal and issues an abnormal alarm.

Description

Vehicle abnormality monitoring method

The present invention relates to a method for monitoring abnormality of a vehicle, and in particular to a method and device for monitoring abnormality of a vehicle in motion.

With the development of science and technology, automobiles have become a mature means of transportation, both in metropolitan and suburban areas. Compared with other vehicles (such as locomotives), cars are more comfortable and safer, and can provide a full cover to cover the rain when it rains. Therefore, people often choose cars as their first choice when going out. .

However, when driving a car for a long time, it will cause the internal mechanical fatigue of the vehicle, the rubble on the ground, and the bumpy road surface to cause collisions, etc., and the internal mechanical damage of the vehicle when driving. If such an emergency occurs, the driver will not be able to understand the fault immediately. Circumstances will cause the vehicle to break down and even cause a car accident. Therefore, the industry urgently needs a detection device that can monitor the important parts of the vehicle (such as the engine and tires) while driving, and send fault messages to the driver in real time, so that the driver can take emergency measures; therefore, the industry has designed it for Parts monitoring device or system when driving, such as tire pressure detection system.

Tire-pressure monitoring system (TPMS, Tire-pressure monitoring system) is a system used to detect the tire pressure of a tire, installed in the vehicle. This system will detect in real time, and let the driver know the change of tire pressure by meter, digital display or simply by light or sound. In order to reduce traffic accidents caused by excessive or insufficient tire pressure, and allow car owners to keep tires at proper tire pressure to reduce fuel consumption.

The conventional tire pressure detection system can be divided into indirect and direct. The indirect system does not directly detect the tire pressure, but detects the rotation speed of the vehicle wheel. If the wheel speed difference is too large, it means that the tire pressure is abnormal, and the system will issue an alarm to remind the driver. However, the indirect system cannot provide the actual tire pressure value for driving, so it often produces false alarms.

The direct system is to install wireless or wired sensors on the wheels of the vehicle. Depending on the installation method, there are external and internal tires. The external tire sensor is directly installed on the tire's valve, but the sensor itself has weight. Installation on the valve may affect the balance of the tire, and the sensor needs to be removed when the tire is inflated. During the disassembly and assembly process The air nozzle may be broken; the in-tire sensor is installed in the wheel of the vehicle. Because the tire needs to be disassembled for installation, it can only be installed by an automobile factory or a maintenance shop, and it needs to be reinstalled after installation. Doing balance will cause a lot of inconvenience.

Continuing the above, the conventional tire pressure detection system still has many shortcomings, and it can only monitor the wheels of the vehicle, and it cannot detect the failure of the engine. Therefore, the industry has designed an on-board diagnostic system to detect other vehicles. Components.

On-Board Diagnostics (OBD), also translated as On-Board Diagnostics, is a system installed in the car to monitor the operating status of the vehicle and report abnormalities. It can cause malfunctions when the subsystems of the vehicle have problems. Codes and reminder signals inform car owners and car manufacturers to diagnose and repair. With the advancement of computer technology, it is now possible to report real-time data and standardized trouble codes (diagnostic trouble codes, DTC), but the conventional car diagnostic system mainly monitors the vehicle engine , The temperature of the water tank and the amount of exhaust gas emissions, there are still warnings for sudden conditions that may cause internal mechanical damage to the vehicle during driving, such as internal mechanical fatigue of the vehicle, gravel on the ground, and collisions caused by uneven roads. Shortcomings.

In view of the above-mentioned problems of the prior art, the present invention provides a vehicle abnormality monitoring method, which uses a sensing element to sense the vibration source of the moving vehicle, by sensing the vibration source, and comparing the vibration Whether the vibration value of the source is greater than the preset vibration value, when the vibration value is greater than the preset vibration value, it means that the vibration source is faulty. At this time, an alarm is issued to warn the driver, so that the driver can stop or perform emergency treatment to solve the problem when the vehicle is running. When a sudden situation occurs, the driver cannot understand the fault situation immediately, which will cause the vehicle to break down and even cause the problem of a car accident.

An object of the present invention is to provide a method for monitoring abnormality of a vehicle, which is to install a sensing element on the vibration source of a moving vehicle, and generate a vibration value by sensing the vibration source of the vehicle, and use the processor Compare whether the vibration value is greater than the preset vibration value. When the vibration value is greater than the preset vibration value, the processor generates an abnormal signal, and then the electronic device receives the abnormal signal to issue an abnormal warning to warn the driver, allowing the driver to stop or make an emergency Deal with it to avoid accidents.

In order to achieve the aforementioned objectives and effects, the present invention provides a vehicle abnormality monitoring method, the steps of which include using a sensing element to sense a vibration source of a moving vehicle and generate a vibration value; A processor receives the vibration value, and determines the magnitude of the vibration value and a preset vibration value; when the vibration value is greater than the preset vibration value, the processor generates an abnormal signal; an electronic device receives the abnormal signal An abnormal alarm is issued; this method is used to prevent the occurrence of unexpected parts of the vehicle while driving, and the driver cannot understand the fault situation immediately, which will cause the vehicle to break down and even cause the problem of a car accident.

In an embodiment of the present invention, in the step of using a sensing element to sense a vibration source of a moving vehicle and generate a vibration value, the vibration source is the engine, seat, tire, or gear of the vehicle box.

In an embodiment of the present invention, after the step of using a processor to receive the vibration value and determine the magnitude of the vibration value and a preset vibration value, it further includes the step of: when the vibration value is less than the preset vibration value , The processor generates a normal signal; and uses the electronic device to receive the normal signal and issue a normal report.

In an embodiment of the present invention, the vibration value and the preset vibration value are displacement values of the vibration source due to vibration.

In an embodiment of the present invention, in the step of using a sensing element to sense a vibration source of a moving vehicle and generate a vibration value, the sensing element is an accelerometer, which senses the vibration source. The acceleration of the vibration source (unit g) is obtained, and the acceleration of the vibration source is converted into a displacement by an integrator, that is, the vibration of the vibration source.

In order to enable your reviewer to have a further understanding and understanding of the features of the present invention and the effects achieved, the following examples and accompanying descriptions are provided. The description is as follows:

The present invention provides a method for monitoring abnormality of a vehicle. A sensing element is used to sense a vibration source included in a moving vehicle, and a processor is used to compare whether a vibration value of the vibration source is greater than a preset Vibration value. When the vibration value is greater than the preset vibration value, an electronic device will send an alarm to warn the driver, allowing the driver to stop or perform emergency treatment to avoid sudden occurrence of parts when driving, causing the vehicle to break down and cause a car accident problem.

Please refer to Figure 1, which is a schematic diagram of the steps of an embodiment of the present invention. As shown in the figure, a method for monitoring abnormalities of a vehicle includes the following steps:

Step S2: Use a sensing element to sense a vibration source of a moving vehicle and generate a vibration value;

Step S4: Use a processor to receive the vibration value, and determine the magnitude of the vibration value and a preset vibration value;

Step S6: When the vibration value is greater than the preset vibration value, the processor generates an abnormal signal; and

Step S8: Use an electronic device to receive the abnormal signal and issue an abnormal alarm.

Please refer to Figure 1 and Figure 3 again. Figure 3 is a schematic structural diagram of an embodiment of the present invention. As shown in the figure, a vehicle abnormality monitoring device 1 includes a sensing element 10 and a processor. 20 and an electronic device 30. The sensing element 10 is arranged on a vibration source 3 of a vehicle 2. The vehicle 2 can be a conventional mobile vehicle such as a passenger car, a bus, or a truck, and the vibration source 3 is selected from one of the engine, seat, tire, and gearbox of the vehicle 2 or any combination of the above elements; for example, the sensing element 10 is arranged above the hood of the engine of the vehicle 2, and is arranged at Under the seat cushion of the vehicle 2, set on the inside of the tire rim of the vehicle 2, or set on the outer wall of the gearbox of the vehicle 2, to sense the vibration generation of the vibration sources 3 A sensing signal 12; the processor 20 is electrically connected to the sensing element 10, the processor 20 receives the sensing signal 12 and generates a control signal 22, an electronic device 30 is electrically connected to the processor 20, the electronic The device 30 receives the control signal 22 and sends a message 32; the message includes an abnormal alarm and a normal report; the electronic device 30 can be a car computer and its display.

Following the above, in this embodiment, the sensing element 10 uses an accelerometer. The accelerometer operates by using the piezoelectric effect. The principle is to use the vibrating mass in the accelerometer to squeeze due to the vibration of the external vibration source. The ceramic and quartz coated on the outside of the ceramic and quartz generate electric charge when under pressure. The electric charge is used to determine the acceleration value of the vibration source, and then the integrator is used to obtain the speed value of the vibration source to calculate the vibration source The vibration displacement value.

Referring again to Figures 1 and 3, as shown in the figure, in step S2, the sensing element 10 is used to sense the vibration source 3 of the moving carrier 2, and the sensing element 10 senses the vibration The source 3 generates a vibration value; the preset vibration value and the preset vibration value are the acceleration values of the vibration source 3 due to vibration; the vibration source 3 vibration (such as up and down, left and right) generates displacement, and the displacement generates acceleration, Then, the acceleration (unit g) of the vibration source 3 is measured by the sensing element 10 (accelerometer in this embodiment) to convert it into a displacement, that is, the vibration of the vibration source 3.

Following the above, in step S4, the processor 20 is electrically connected to the sensing element 10 to receive the vibration value, and determine the magnitude of the vibration value and the preset vibration value; the preset vibration value of this embodiment The acquisition is based on the vibration value of the vibration source 3 that has just left the factory after the vehicle 2 leaves the factory or maintenance factory.

Following the above, in step S6, when the vibration value is greater than the preset vibration value, the processor 20 generates the control signal 22 at this time. The control signal 22 includes an abnormal signal 22, which indicates the vibration source 3 The vibration value is too large. If the vibration value of the vibration source 3 has an amplitude of 5 mm, and the preset vibration value is 1 mm, it may be that the engine screws of the vehicle 2 are loosened, etc., and the parts are damaged, and an alarm needs to be sent. Driving to prevent accidents.

Continuing the above, in step S8, the electronic device 30 is used to receive the control signal 22 containing the abnormal signal and send out the message 32. The message 32 contains an abnormal alarm, wherein the abnormal alarm can be a light warning (such as an electronic device display Abnormal engine vibration), or audible warning (such as buzzer sound), as long as the warning method that can make the driver more alert is applicable, and the present invention is not limited here.

In this embodiment, the sensing element 10 is used to sense the vibration source 3 contained in the vehicle 2 in movement, and the processor 20 is used to compare whether the vibration value of the vibration source 3 is greater than the preset vibration value When the vibration value is greater than the preset vibration value, the electronic device 30 sends out an alarm to allow the driver to stop or perform emergency treatment to avoid causing a car accident.

Please refer to Figure 2, which is a schematic diagram of other steps of the embodiment of the present invention. As shown in the figure, in this embodiment, after the above step S4, the step further includes:

Step S10: When the vibration value is less than the preset vibration value, the processor generates a normal signal; and

Step S12: Use the electronic device to receive the normal signal and send a normal report.

Referring again to Figures 1 and 2, as shown in the figure, in step S10, when the vibration value is less than the preset vibration value, it means that the sensed vibration source 3 is operating normally, and the processor 20 generates The control signal 22 and the control signal 22 include a normal signal.

Following the above, in step S12, the electronic device 30 is used to receive the control signal 22 containing the normal signal and send the message 32. The message 32 contains a normal report, wherein the normal report can be displayed by light (such as the display of the electronic device). The engine is operating normally), inform the driver that the vibration source 3 is normal and there is no need to worry.

The effect of this embodiment is that if the vibration source 3 is hit by a small stone, the vibration value temporarily exceeds the standard, causing the electronic device 30 to issue the abnormal alarm, the vibration source 3 is still free, but the driver cannot know the vibration source 3 It is still normal, it only receives the abnormal alarm, and performs misjudgment actions such as parking and flameout. Therefore, this embodiment provides steps S10 to S12 to provide the real-time normal report to reduce the temporary exceeding of the vibration value of the vibration source 3, which may cause misjudgment.

In summary, the present invention provides a vehicle abnormality monitoring method, which uses the sensing element to sense the vibration source of the moving vehicle, and sends the vibration value to the processor to determine the vibration The value is greater or less than the preset vibration value. When the vibration value is greater than the preset vibration value, it means that the vibration source is abnormal, and the electronic device sends the abnormal alarm at this time; when the vibration value is less than the preset vibration value, it means that the vibration source maintains normal operation. At that time, the electronic device sends the normal report. The present invention uses this method to prevent the sudden occurrence of parts when driving while driving, and the failure to understand the fault situation in real time, which causes a car accident. At the same time, it solves the shortcoming that the conventional tire pressure detector can only measure the tire of the vehicle, and solves the problem. The conventional on-board diagnostic system only monitors the shortcomings of the vehicle engine, the temperature of the water tank, and the exhaust gas emissions.

Therefore, the present invention is really novel, progressive, and available for industrial use. It should meet the patent application requirements of my country's patent law. Undoubtedly, I filed an invention patent application in accordance with the law. I pray that the Bureau will grant the patent as soon as possible.

However, the foregoing is only an embodiment of the present invention, and is not used to limit the scope of implementation of the present invention. Therefore, all the equivalent changes and modifications of the shape, structure, characteristics and spirit described in the scope of the patent application of the present invention are mentioned. All should be included in the scope of the patent application of the present invention.

1: Monitoring device for abnormal vehicle 2: Vehicle 3: Vibration source 10: Sensing element 12: Sensing signal 20: processor 22: Control signal 30: Electronic device 32: Message S2: Step S4: Step S6: steps S8: Step S10: steps S12: steps

Figure 1: It is a schematic diagram of the steps of an embodiment of the present invention; Figure 2: It is a schematic diagram of other steps of the embodiment of the present invention; and Figure 3: It is a schematic diagram of the structure of an embodiment of the present invention.

S2: Step

S4: Step

S6: steps

S8: Step

Claims (3)

A method for monitoring abnormality of a vehicle, the steps comprising: using a sensing element to sense a vibration source of a moving vehicle and generating a vibration value; using a processor to receive the vibration value, and determine the vibration value and The magnitude of a preset vibration value; when the vibration value is greater than the preset vibration value, the processor generates an abnormal signal; and an electronic device receives the abnormal signal and sends out an abnormal alarm; wherein the vibration value and the prediction Let the vibration value be the displacement value of the vibration source due to vibration; wherein a sensing element is used to sense a vibration source of a moving vehicle and generate a vibration value in the step, the sensing element is an accelerometer, which The acceleration of the vibration source (unit g) is measured by sensing the vibration source, and the acceleration of the vibration source is converted into displacement by an integrator, that is, the vibration of the vibration source. The method for monitoring vehicle abnormality according to claim 1, wherein in the step of using a sensing element to sense a vibration source of a moving vehicle and generate a vibration value, the vibration source is the engine of the vehicle, Seats, tires or gearboxes. The method for monitoring vehicle abnormality according to claim 1, wherein a processor is used to receive the vibration value, and after the step of determining the magnitude of the vibration value and a preset vibration value, the method further includes the step of: when the vibration value is less than At the preset vibration value, the processor generates a normal signal; and uses the electronic device to receive the normal signal and send a normal report.

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