KR102599367B1 - Control signal noise removal device for internal combustion engine and noise removal system - Google Patents

Abstract

The internal combustion engine control signal noise removal device and system according to the embodiment solves side effects caused by signal errors and distortions that appear as many electrical and electronic devices are introduced into vehicles, and eliminates the problems caused by the assembly characteristics of the vehicle and the wiring of electrical and electronic devices due to aging. Removes various control signal noises generated or introduced. The noise removal system according to the embodiment removes electrical noise generated from TPS (throttle position sensor) and batteries during operation of cars and ships and stabilizes electronic control signals to ensure complete combustion of fuel. In addition, the noise removal system according to the embodiment is located between the ECU (Engine Control Unit) and the TPS and in the battery, and removes and stores electrical noise generated or introduced from various electrical wiring. Additionally, in the embodiment, electrical noise is digitally removed through an algorithm using an MCU (Micro Controller Unit) to remove noise.

Description

Internal combustion engine control signal noise removal device and system {CONTROL SIGNAL NOISE REMOVAL DEVICE FOR INTERNAL COMBUSTION ENGINE AND NOISE REMOVAL SYSTEM}

This disclosure relates to a noise removal device and system, and specifically, to an internal combustion engine that eliminates electrical noise generated during the operation of automobiles and ships, stabilizes electronic control signals, and optimizes the functions of the throttle valve and injector, thereby creating a fuel saving effect. It relates to a control signal noise removal device and noise removal system.

Unless otherwise indicated herein, the material described in this section is not prior art to the claims of this application, and is not admitted to be prior art by inclusion in this section.

Climate change or global warming caused by the greenhouse effect is currently the most important international environmental problem. The effects of climate change (glacier decline, desertification, sea level rise, etc.) are not only clearly visible internationally, but are also causing extreme weather events, sea level rise, and ecosystem changes on the Korean Peninsula. The most important cause of climate change is greenhouse gas emissions. Greenhouse gas emissions are closely linked to human production and consumption activities (especially energy use).

Korea's greenhouse gas emissions increased by 149% from 292.2 million tons (based on carbon dioxide conversion) in 1990, which was set as the base year for greenhouse gas reduction in the Kyoto Protocol, to 727.6 million tons in 2018. During this period, the growth rate of greenhouse gas emissions averaged 3.3% per year. As of 2017, Korea is the 11th largest greenhouse gas emitter in the world and the 5th largest greenhouse gas emitter among OECD member countries. However, the recent slowing of the growth rate is a meaningful change. Greenhouse gas emission sources are divided into energy, industrial processes, agriculture, and waste, and the main source of emissions worldwide is the energy sector. Greenhouse gases emitted from the energy sector account for 87% of total greenhouse gases. In Korea, greenhouse gas emissions from the energy sector increased by 163% between 1990 and 2018.

Greenhouse gas emissions compared to GDP decreased by about 38% from 643.4 tons per billion won in 1990 to 401.6 tons per billion won in 2018. This is because the rate of expansion of economic scale was relatively faster than the rate of increase in greenhouse gas emissions during the same period. Korea's greenhouse gas emissions relative to GDP are lower than those of developing countries such as China and India, but are still higher than those of advanced countries such as France, the UK, Germany, and Japan. Per capita greenhouse gas emissions approximately doubled from 6.8 tons in 1990 to 13.8 tons in 2017. Korea's per capita greenhouse gas emissions are lower than those of Australia or the United States, which use a lot of coal and develop resources, but are higher than those of Japan and Germany, which have developed manufacturing industries.

Transportation accounts for 14% of greenhouse gas emissions. Exhaust gas pre-treatment technology, which optimizes vehicle performance and fundamentally reduces smoke and fine dust generated from vehicles, is applied to all internal combustion engines such as gasoline, diesel, LPG, and CNG. However, conventional exhaust gas pretreatment systems have a problem in that they cannot completely remove electrical noise due to the nature of analog circuits. In other words, the conventional system only serves to reduce electrical noise and increase the period of electrical noise generation by using diodes, resistors, and capacitors.

1. Registered Patent Publication No. 10-2126739 (2020.06.19) 2. Registered Patent Publication No. 10-1063212 (2011.09.01)

The internal combustion engine control signal noise removal device and noise removal system according to the embodiment solve the side effects caused by signal errors and distortions that appear as many electrical and electronic devices are introduced into vehicles, and the electrical and electronic devices' noise removal system due to assembly characteristics and aging of the vehicle. Removes various control signal noises generated or introduced from wiring. In particular, it eliminates electrical noise generated from TPS (Throttle Position Sensor) and batteries during the operation of cars and ships and stabilizes electronic control signals to ensure complete combustion of fuel.

In addition, the internal combustion engine control signal noise removal device and noise removal system according to the embodiment are located between the ECU (Engine Control Unit) and the TPS and connected to the battery, and remove electrical noise generated or introduced from various electrical wiring and remove the battery. Congratulations.

Additionally, in the embodiment, electrical noise is digitally removed through an algorithm using an MCU (Micro Controller Unit) to remove noise.

A control signal noise removal device for an internal combustion engine according to an embodiment includes a TPS part to which a signal from the ECU is applied; and a part to which a battery signal is applied; The TPS part includes a high-frequency and low-frequency noise removal module that removes noise of frequencies outside the normal signal range among input signals; Reverse current prevention module to prevent reverse current; and a digital noise removal module (MCU) that removes digital noise generated between the ECU and TPS and between the battery and generator; Includes a part to which a battery signal is applied; is a high-frequency and low-frequency noise removal module that removes noise of frequencies outside the normal signal range among input signals; Analog noise removal module to remove analog noise; A digital-to-analog conversion module that converts digital-to-analog signals; and a protection module that protects the digital noise cancellation module; Includes.

A control signal noise removal system for an internal combustion engine according to another embodiment includes a noise removal module that removes electrical noise generated from an ECU (Engine Control Unit), TPS (Throttle Position Sensor), and a battery; An overcurrent limiting module that detects overcurrent generated from the battery and limits the detected overcurrent; When a voltage is input from the noise removal module, a constant voltage module maintains the input voltage at a constant voltage and outputs it; An analog signal conversion module that converts the digital signal input from the noise removal module into an analog signal; Includes.

The internal combustion engine control signal noise removal device and noise removal system according to the embodiment include a generator that produces electricity for the entire vehicle, a battery that manages stored electricity, and a vehicle with electrical wiring through an ECU that controls and adjusts mechanical and electrical and electronic devices. By removing electronic device control signal noise, the original performance of the vehicle and battery is improved and restored. In addition, it increases engine output and stabilizes the TPS, which controls the throttle body, which is the part most closely related to vehicle performance, thereby improving fuel efficiency and power, as well as reducing smoke and fine dust generation.

In addition, the throttle valve and injector functions are optimized to create fuel savings and reduce smoke and fine dust generation.

In addition, it improves battery performance and stabilizes the overall electrical and electronic control voltage of the vehicle, enabling stable signals to be exchanged between the TPS and ECU.

In addition, the embodiment stabilizes the voltage flowing into the vehicle by eliminating electrical noise generated or introduced from the wiring and vehicle body in charge of the stable charging function and power supply of the battery, which serves as the heart of the vehicle, in analog and digital ways, thereby stabilizing the vehicle performance. Contributes to maintenance.

The effects of the present invention are not limited to the effects described above, and should be understood to include all effects that can be inferred from the configuration of the invention described in the detailed description or claims of the present invention.

1 is a configuration diagram of a device for removing control signal noise of an internal combustion engine according to an embodiment.
Figure 2 is a diagram showing the circuit configuration of a control signal noise removal device for an internal combustion engine according to an embodiment.
Figure 3 is a diagram showing the installation portion of a control signal noise removal device for an internal combustion engine according to an embodiment.
Figure 4 is a diagram showing a vehicle system block comprising a noise removal system according to an embodiment
Figure 5 is a diagram showing the data processing configuration of a noise removal system according to an embodiment
Figure 6 is a diagram showing a data processing block of a noise removal module according to an embodiment
Figure 7 is a diagram showing the data processing flow of the noise removal module according to an embodiment
Figure 8 is a diagram showing waveforms before and after noise removal by a control signal noise removal device and system for an internal combustion engine according to an embodiment.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. The present embodiments are merely provided to ensure that the disclosure of the present invention is complete and to provide common knowledge in the technical field to which the present invention pertains. It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

In describing embodiments of the present invention, if it is determined that a detailed description of a known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. The terms described below are terms defined in consideration of functions in embodiments of the present invention, and may vary depending on the intention or custom of the user or operator. Therefore, the definition should be made based on the contents throughout this specification.

1 is a configuration diagram of an apparatus for removing control signal noise of an internal combustion engine according to an embodiment.

The noise removal device according to the embodiment is a generator (alternator) that produces electricity for the entire vehicle, a battery that manages the stored electricity, and noise from vehicle electronic device control signals in electrical wiring through an ECU that controls and adjusts mechanical and electrical and electronic devices. Through removal, the original performance of the vehicle and battery is improved and recovered, and engine output is improved. In addition, it is a device that improves fuel efficiency and output as well as reduces the generation of exhaust smoke and fine dust by stabilizing the TPS, which controls the throttle body, which is the part most closely related to the vehicle's performance.

Referring to FIG. 1, the noise removal device according to the embodiment includes a TPS part (a) to which a signal from the ECU is applied and a part (b) to which a battery signal is applied, and the TPS part includes a high-frequency and low-frequency noise removal module (70). ), a reverse current prevention module (80), a digital-to-analog conversion module (90), and a digital noise removal module (30), and the part (b) to which the battery signal is applied is a low-frequency noise removal module (60) and an analog noise removal module. It may be configured to include a module 110 and a protection module 130.

The TPS 10 and the battery 40 receive signals from the ECU 20, and the low-frequency noise removal module 60 removes low-frequency noise from the input signal. The high-frequency noise removal module 70 removes high-frequency noise from the input signal.

The reverse current prevention module (80) prevents reverse current, and the digital noise removal module (MCU) prevents digital noise generated between the ECU (20) and TPS (10) and digital noise generated between the battery (40) and the generator. Remove noise. The analog noise removal module 110 removes analog noise, and the digital-to-analog conversion module 90 converts the analog signal to digital. The protection module 130 protects the digital noise removal module (MCU).

FIG. 2 is a diagram showing the circuit configuration of a control signal noise removal device for an internal combustion engine according to an embodiment, and FIG. 3 is a diagram showing an installation portion of the noise removal device according to an embodiment.

Referring to FIG. 2, the noise removal device according to the embodiment is a complex control signal noise removal device including a TPS part (a) and a battery part (b) to which the most important ECU signal among vehicle electrical and electronic signals is applied. The high-frequency and low-frequency noise removal module 70 consists of C1 and C2 connected in parallel for the TPS part, and C7 and C8 connected in parallel for the battery part to remove noise input from the battery.

The reverse current prevention module 80 is composed of a closed circuit formed by C3, D2, and D3, R2 connected in parallel with C3, and R1 and D1 connected in series with C3, and the analog noise removal module 110 is a serial circuit in the case of the TPS part. It consists of connected R3 and R4, and in the case of the battery part, it may consist of R10 and R11 connected in series. The digital-to-analog conversion module 90 may include a TPS part including TR1 and a battery part including TR2. The protection module 130 may be composed of R6 for the TPS part and R12 for the battery part.

The high-frequency and low-frequency noise removal module 70 (C1, C2) of the TPS part is a module connected to the power line 100 and control signal line 200 of the TPS 10 to the power line and control signal line applied from the ECU. and can be added in parallel. The high-frequency and low-frequency noise removal module of the battery part consists of C7 and C8 elements and may include capacity changes and additional elements.

The reverse current prevention module (R1, R2, C3, D1, D2, D3) operates by being connected to the power line 100, control signal line 200, and ground line of the TPS 10 and changes capacity and changes depending on the signal value. Additional elements may be included.

The analog noise removal module 110 consists of R3, R4, R10, and R11, and the digital noise removal module consists of the MCU 30. In the embodiment, the digital noise generated between the ECU 20 and the TPS 10 as well as the digital noise generated between the battery 40 and the generator (not shown) are controlled through the MCU 30, so that the entire power of the vehicle is controlled. The constant voltage efficiency can be increased.

The MCU 30 and protection modules (R6, R12) include digital noise removal of the ECU 20 and the battery 40, and elements of the protection module can be added.

The internal algorithm of the MCU (30) is not a separate calculation processing program like a PC, but is convenient for repetitive operation control methods, so the noise setting value is stored in the database and the input value is compared with the value stored in the database to exclude the value. Set to noise to remove it. The MCU 30 stores noise settings, storage method, and data extraction structure.

Hereinafter, the data processing process of the MCU according to the embodiment will be described.

The MCU according to the embodiment pre-extracts and stores data values based on the following criteria, and compares the stored data values with the input values to determine noise. Afterwards, data values are selected according to the noise determination result and transmitted to the actuator. In the embodiment, a database of 4,096 In the embodiment, the MCU database sample value can be expressed as follows.

DB(4096,10)={{..}, //0~559 is not a usage range

// 0 1 2 3 4 5 6 7 8 9

{1130, 1132, 1134, 1136, 1138, 1140, 1142, 1144, 1146, 1148}, //560,..

{1131, 1133, 1135, 1137, 1139, 1141, 1143, 1145, 1147, 1149}, //561,.

{..},..}//Omitted below

{4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095, 4095}://4095.

Additionally, in the embodiment, the data value calculation standard may be set to a value that can reduce the voltage of the TR1 collector to the value before noise generation.

In the embodiment, when a voltage of 0 to 5V is applied as an ECU signal value, the MCU converts it to a value of 0 to 4095 in an analog digital converter (Analog Digital Converter, 12bit) and inputs it. In the embodiment, the voltage of R6 and the MCU is checked periodically (at 10 μs per time), and if the amount of change deviates from the standard, it is judged as noise. For example, if the difference between the previously applied value and the currently applied value occurs by more than 5 mV, it is judged as noise.

In the embodiment, when noise occurs, TR1 is driven to adjust the signal voltage to be the same as the previously applied value. The reference voltage value applied to the base of TR1 is set to a value larger than the previously applied value by the sum of the fixed value and the variable value (+ 0.7V + α). In the embodiment, the variable value (α) is set to a larger value when the amount of change is large, amplifying the amount of current applied from the collector of TR1 to the emitter and forcing the voltage value of the signal to decrease to the previous value. In the embodiment, the address of the database is TPS (previously approved value, change amount -5). The value stored in the database is the voltage value to be applied to the base of TR1 multiplied by the resistance ratio (R8+R9)/R8.

Figure 4 is a diagram showing a vehicle system block comprising a control signal noise removal system for an internal combustion engine according to an embodiment.

Referring to FIG. 4, the noise removal system 200 according to the embodiment may be configured by connecting a battery between the ECU 10 and the TPS 20, and the vehicle system including the noise removal system 200 is connected to the ECU. (10), TPS (20), throttle valve (30), injector (40), engine combustion chamber (50), fine dust reduction system (60), battery (70), and generator (80). .

The ECU 10 is an engine control unit and is an automobile electronic controller that includes a computer's central processing unit (CPU). The ECU 10 operates vehicle control devices such as motors, hydraulic devices, ignition devices, and display devices, and the ECU 10 may be composed of an input device, a storage device, an information processing device, and an output device. In an embodiment, data accumulated during driving is mainly stored in volatile memory (RAM), and the operating system for data processing is stored in non-volatile memory (ROM). A high-performance information processing device is applied for calculation processing according to the algorithm, and a backup device can be added to assume situations such as malfunction. The ECU 10 according to the embodiment receives electronic signals and performs a role of identifying the current vehicle's unique features to check if there is a problem, and through this, controls all devices such as the engine and transmission. In addition, depending on the degree of pressing of the accelerator pedal, air flow, temperature sensor, etc. are complexly calculated to adjust the mixture ratio according to the calculation results to achieve optimal speed and fuel efficiency. In addition, a large amount of exhaust gas from a car can be generated due to irregular combustion due to incorrect ignition timing, so the engine can be used more stably by adjusting the mixture ratio and RPM. Additionally, in the embodiment, the ECU 10 calculates the control timing of the intake and exhaust valves based on the signal input from the noise removal system. Since the intake and exhaust valve control timing varies depending on the driving situation, the intake and exhaust valve control is performed according to the engine rotation situation to accurately control the air intake amount. In addition, it controls fuel injection amount, valve timing, and mixture ratio.

The TPS (20) uses a throttle position sensor to measure the position of the valve, that is, the opening angle, and adjusts the fuel amount according to the opening angle. The TPS 20 directly intervenes and provides a signal about the amount of fuel required by the engine. The TPS signal is continuously measured and continuously combined with other data such as ambient temperature, engine RPM and air mass flow to determine the amount of fuel required. and generate engine ignition timing decision data. The generated data is used to determine the amount of fuel injected into the engine and the ignition timing. When operating normally with other sensors linked to the TPS, smooth driving and efficient acceleration are possible while maintaining the best fuel efficiency. If the TPS does not operate properly, it cannot measure the exact amount of fuel and ignition timing required for engine control, making it impossible to drive smoothly and generate appropriate acceleration.

The throttle valve 30 is a device through which the engine transmits the operation of the accelerator pedal, and controls the amount of air taken in as the throttle valve 30 opens and closes. It opens when you step on the accelerator pedal and closes when you don't. In the embodiment, when the throttle valve opens and the intake of air increases, the ECU detects this and injects fuel into the engine according to the intake amount. Conversely, when the throttle valve is closed, the amount of intake air decreases and less fuel is injected.

The injector 40 is a fuel injection nozzle, which is a vehicle part that not only supplies fuel but also allows the fuel to mix well with air. It atomizes liquid fuel and finally supplies the fuel closest to the engine cylinder.

The engine combustion chamber 50 is a space where a mixture of fuel and air combusts in an internal combustion engine such as a gasoline engine or diesel engine. The combustion chamber is the space between the cylinder head and the piston head, and the shape of the combustion chamber affects the intake and exhaust flows, combustion speed, etc., acting as an important part in determining engine efficiency.

The battery 60 is a device that can store electricity and supplies electricity to the cell motor when the engine starts. In addition, electricity is supplied to electronic devices installed in the vehicle, such as lamps, navigation, and air conditioners. The generator 70 supplies electricity to the battery 60.

The noise removal system 200 removes electrical noise generated from TPS (Throttle Position Sensor) and batteries during operation of automobiles and ships and stabilizes electronic control signals to ensure complete combustion of fuel.

In addition, the noise removal system 200 according to the embodiment is located between the ECU (Engine Control Unit) and the TPS and connected to the battery, and removes electrical noise generated or introduced from various electrical wiring and stores battery power. In the embodiment, electrical noise is digitally removed through an algorithm using an MCU (Micro Controller Unit) to remove noise.

Figure 5 is a diagram showing the data processing configuration of a noise removal system according to an embodiment.

Referring to FIG. 5, the noise removal system 200 according to the embodiment may be configured to include a noise removal module 210, an analog signal conversion module 220, an overcurrent limiting module 230, and a constant voltage module 240. there is. The term 'module' used in this specification should be interpreted to include software, hardware, or a combination thereof, depending on the context in which the term is used. For example, software may be machine language, firmware, embedded code, and application software. As another example, hardware may be a circuit, processor, computer, integrated circuit, integrated circuit core, sensor, Micro-Electro-Mechanical System (MEMS), passive device, or a combination thereof.

The noise removal module 210 removes electrical noise generated from the ECU (Engine Control Unit), TPS, and battery. In an embodiment, the noise removal module 210 removes noise using an electro magnetic interference (EMI) method and an emission method that suppresses generated noise so that the generated noise does not affect other devices. The emission method is an EMS (Electro Magnetic Susceptibility) measure or immunity measure that minimizes the impact when affected by noise generated from other devices. In the embodiment, a filter, amplifier, and comparator are configured in the noise removal module to simultaneously realize EMI and EMS countermeasures. Comparators and operating amplifiers (OP Amp) are important electronic components that are always used when designing analog electronic circuits in automobiles, etc. The OP Amp amplifies the signal and converts it to a voltage level that the MCU can process. The comparator determines the threshold value of the signal and outputs a digital signal (High/Low). As an example of application in the ECU, which is the basic system of an automobile, it is placed at the rear of a number of sensors to detect various information such as location information, temperature, atmospheric pressure, and flow rate, and in the case of a comparator, the threshold value of the sensor signal is determined. The MCU controls the entire system based on that information and promotes optimal operation. Additionally, in the embodiment, noise can be removed through a current detection circuit combined with an op amp and resistor used in a motor control unit, etc. This is a circuit that controls the motor by amplifying the voltage value converted through the current detection resistor in the OP Amp and determining the threshold value in the comparator. In the embodiment, if the noise tolerance of the comparator is high, the sensor signal can be accurately determined and output to the MCU by removing noise, so the system can operate normally. Therefore, ECUs and inverters, where high integration of electronic components is progressing, constitute electronic components with high noise tolerance.

The overcurrent limiting module 220 detects overcurrent generated in the battery and limits the detected overcurrent.

When a voltage is input from the noise removal module 210, the constant voltage module 230 maintains the input voltage at a constant voltage and outputs it. The analog signal conversion module 240 converts the digital signal input from the noise removal module into an analog signal.

In the embodiment, the noise removal module 210 outputs a rectified and stabilized ECU signal and inputs it to the TPS, and sends a pulse signal through the TPS input signal to the solenoid control unit to control the opening and closing of the throttle valve opening angle. In addition, the noise removal module 210 supplies fuel and air to the engine combustion chamber by controlling the opening and closing of the throttle valve opening angle to completely burn the engine fuel and air.

Figure 6 is a diagram showing a data processing block of a noise removal module according to an embodiment.

Referring to FIG. 6, the noise removal module 210 according to the embodiment may be configured to include a signal generation unit 211, an analog noise removal unit 212, an MCU 213, and a digital noise removal unit 214. there is.

The signal generator 211 generates a high-performance and large-capacity capacitor for power storage, a transistor for controlling the flow of current, a diode for preventing reverse current, a condenser for voltage adjustment, and a digital MCU input signal. The analog noise removal unit 212 removes analog noise. In an embodiment, analog noise can be removed by canceling out noise through Active Noise Cancellation technology.

The MCU 213 calculates data collected by the vehicle and generates vehicle control commands.

The digital noise removal unit 214 removes noise from the input digital signal. For example, when implementing noise countermeasures, the comparator configured in the digital noise removal unit recognizes both the power line and the ground line as elements with resistance, capacitance, and inductance components. In an embodiment, an EMI filter circuit capable of blocking noise in a wide frequency band is built in to improve noise tolerance, and digital noise removal can be performed through a bipolar process using a bipolar transistor.

Below, noise removal methods will be explained in turn. Since the operation (function) of the noise removal method according to the embodiment is essentially the same as the function of the noise removal system, descriptions overlapping with FIGS. 1 to 3 will be omitted.

Figure 7 is a diagram showing the data processing flow of the noise removal module according to an embodiment.

Referring to FIG. 7, in step S100, the noise removal module removes electrical noise generated from the ECU (Engine Control Unit), TPS, and battery. In step S200, the overcurrent limiting module detects overcurrent generated from the battery and limits the detected overcurrent. In step S300, when a voltage is input from the noise removal module in the constant voltage module, the input voltage is maintained at a constant voltage and output. In step S400, the analog signal conversion module converts the digital signal input from the noise removal module into an analog signal.

Figure 8 is a diagram showing waveforms before and after noise removal by a noise removal device and system according to an embodiment. Referring to Figure 8, the noise removal device and system optimizes the functions of the throttle valve and injector, creating a fuel saving effect and reducing the generation of smoke and fine dust. In addition, it improves battery performance and stabilizes the overall electrical and electronic control voltage of the vehicle, enabling stable signals to be exchanged between the TPS and ECU. In addition, the embodiment stabilizes the voltage flowing into the vehicle by eliminating electrical noise generated or introduced from the wiring and vehicle body in charge of the stable charging function and power supply of the battery, which serves as the heart of the vehicle, in analog and digital ways, thereby stabilizing the vehicle performance. Contributes to maintenance.

An apparatus and method for removing control signal noise of an internal combustion engine according to an embodiment includes a generator that produces electricity for the entire vehicle, a battery that manages stored electricity, and a vehicle electronic device of electrical wiring through an ECU that controls and adjusts mechanical and electrical and electronic devices. By removing control signal noise, the original performance of the vehicle and battery is improved and restored. In addition, it increases engine output and stabilizes the TPS, which controls the throttle body, which is the part most closely related to vehicle performance, thereby improving fuel efficiency and power, as well as reducing smoke and fine dust generation.

The disclosed content is merely an example, and various modifications and implementations may be made by those skilled in the art without departing from the gist of the claims, so the scope of protection of the disclosed content is limited to the above-mentioned specific scope. It is not limited to the examples.

Claims (10)

In the device for removing control signal noise of an internal combustion engine,
TPS part where ECU signals are applied; and
A part to which a battery signal is applied; Including,
The TPS part is
High-frequency and low-frequency noise removal module that removes noise of frequencies outside the normal signal range among input signals;
Reverse current prevention module to prevent reverse current; and
A digital noise removal module (MCU) that removes digital noise generated between the ECU and TPS and between the battery and generator; Including,
A part to which the battery signal is applied; Is
High-frequency and low-frequency noise removal module that removes noise of frequencies outside the normal signal range among input signals;
Analog noise removal module to remove analog noise;
A digital-to-analog conversion module that converts digital-to-analog signals; and
a protection module that protects the digital noise removal module; A noise removal device comprising a.
delete delete delete The digital noise removal module of claim 1, further comprising: silver
A noise removal device that stores set values in a database, compares them, and removes excluded values as noise.
In the control signal noise removal system for an internal combustion engine,
Noise removal module that removes electrical noise generated from the Engine Control Unit (ECU), Throttle Position Sensor (TPS), and battery;
An overcurrent limiting module that detects overcurrent generated from the battery and limits the detected overcurrent;
When a voltage is input from the noise removal module, a constant voltage module maintains the input voltage at a constant voltage and outputs it; and
an analog signal conversion module that converts the digital signal input from the noise removal module into an analog signal; A noise removal system comprising:
The noise removal module of claim 6; silver
A capacitor for power storage, a transistor to control the flow of current, a diode to prevent reverse current, a condenser for voltage adjustment, and a signal generator to generate a digital MCU input signal; A noise removal system comprising:
The method of claim 6, wherein the noise removal system
A noise removal system configured between the vehicle ECU and TPS.
The method of claim 6, wherein the noise removal module
A noise removal system that outputs a rectified and stabilized ECU signal and inputs it to the TPS, and sends a pulse signal through the TPS input signal to the solenoid control unit to control the opening and closing of the throttle valve opening angle.
The method of claim 6, wherein the noise removal module
A noise removal system that supplies fuel and air to the engine combustion chamber through control of the throttle valve opening angle.