KR101036623B1 - Vibration and Noise Control Method and Control Device of Variable Cylinder Engine Using Adaptive Algorithm - Google Patents

Abstract

The present invention relates to active vibration control using an adaptive algorithm. In particular, the step (S100) of the first sensor 100 mounted on the predetermined drive body (1) to obtain a reference signal (r _k ) corresponding to the revolutions per minute of the engine 10 of the drive (1) (S100); Obtaining, by the second sensor 200 mounted on the driving body 1, a target signal d _k corresponding to a predetermined vibration or a predetermined noise generated in the driving body 1 (S200); An adaptive algorithm for causing the controller 300 to output the same operation control signal as the target signal d _k based on the reference signal r _k and the target signal d _k when the number of driving cylinders of the driving body 1 changes. Applying (S300); And a step (S400) in which the actuator 400 is operated based on an operation control signal of the controller 300. A method of controlling vibration and noise of a variable cylinder engine using an adaptive algorithm is disclosed.

Active Vibration Control, Adaptive Algorithm, LMS (Least Squared Mean) Algorithm, Filtered-X LMS (Filter-X) Algorithm

Description

CONTROL METHOD AND APPARUTUS OF VIBRATION AND NOISE FROM VARIABLE DISPLACEMENT ENGINE USING ADAPTIVE ALGORITHM}

The present invention relates to a method and a control device for controlling vibration and noise of an engine, and more particularly, to a method for controlling vibration and noise of a variable cylinder engine using an adaptive algorithm to prevent a driver or passenger from feeling a change in the number of driving cylinders. And a control device.

The present invention is a technique suitable for the use of a variable cylinder engine, the prior art in this field is to minimize the vibration of the engine by using an active engine mount, or to minimize the noise from the engine by using a plurality of microphones. There are a variety of methods, but the most widely used method is to use a sensor that measures the engine RPM and a sensor that measures the vibration of the chassis or the noise in the car. However, the use of this method alone does not provide effective control as the vibration or noise can be momentarily increased in a situation where the characteristics of the existing vibration or noise, such as a variable cylinder engine, change.

When the number of cylinders driven changes, the driver or passenger may feel unstable. If an algorithm is used to generate the measured signal, it will be able to control vibration or noise with existing equipment without additional equipment. . Due to the depletion of fossil fuels, various technologies for improving fuel efficiency have been developed, and it is an important issue to appropriately change existing vibration and noise control technologies in accordance with the development of these technologies.

The present invention has been made to solve the above-mentioned conventional problems, an object of the present invention is to use the adaptive algorithm that can generate a vibration or noise signal as a desired signal based on the existing algorithm by modifying the target signal portion The present invention provides a method and a control device for controlling vibration and noise of a variable cylinder engine.

Another object of the present invention is to control the vibration and noise of a variable cylinder engine using an adaptive algorithm to more efficiently control the vibration or noise by matching the phase of the existing vibration or noise characteristics with the signal to be generated. A method and a control apparatus are provided.

Further, another object of the present invention is a method of controlling vibration and noise of a variable cylinder engine using an adaptive algorithm to effectively control vibration or noise when the number of cylinders driven in an engine, which cannot be controlled in the prior art, is changed. And a control device.

The object of the present invention as described above is that the first sensor 100 mounted on the predetermined driving body 1 acquires the reference signal r _k corresponding to the revolutions per minute of the engine 10 of the driving body 1. Step S100; Obtaining, by the second sensor 200 mounted on the driving body 1, a target signal d _k corresponding to a predetermined vibration or a predetermined noise generated in the driving body 1 (S200); An adaptive algorithm for causing the controller 300 to output the same operation control signal as the target signal d _k based on the reference signal r _k and the target signal d _k when the number of driving cylinders of the driving body 1 changes. Applying (S300); And an operation 400 in which the actuator 400 is controlled to be operated based on the operation control signal of the controller 300 (S400). The method may be achieved by a method of controlling vibration and noise of a variable cylinder engine using an adaptive algorithm. Can be.

)를 출력하는 단계(S359); 구동체(1)의 진동에 기초한 구동계 제 2전달함수를 통해 제 2출력신호(

)가 제 3출력신호(c_k)로 변경 출력되는 단계(S361); 제 1감산수단(310)이 제 3출력신호(c_k)를 제 2입력신호(c_{k +1})로 입력받아 오차신호(e_k)를 갱신하는 단계(S363); 및 제 2감산수단(340)이 제 1입력신호(x_k)에 제 3출력신호(c_k)를 감산하여 제 4출력신호(y_k)를 출력하는 단계(S365);를 포함하는 것이 바람직하다.In operation S300, an adaptation algorithm of the controller 300 may include: receiving the reference signal r _k and the target signal d _{k by the} controller 300 (S349); The first subtraction means 310 subtracts the target signal d _k and the second input signal c _{k from} the first input signal x _k whose reference signal r _k is changed by the unknown system P. Outputting an error signal e _k (S353); Changing and outputting the reference signal r _k into a third input signal f _k through the drive system first transfer function based on the vibration of the actuator 400 (S355); Least square average algorithm applying means 320 inputs an error signal e _k and a third input signal f _k to a least square average algorithm to output a first output signal (S357); Adaptive control filter 330 based on the first output signal and the reference signal (r _k ) the second output signal (

Outputting (S359); The second output signal through the drive system second transfer function based on the vibration of the drive body 1

Step S361 is outputted by changing to a third output signal c _k ; The first subtraction means 310 receiving the third output signal c _k as the second input signal c _{k +1} and updating the error signal e _k (S363); And subtracting the third output signal c _k from the first input signal x _{k by} the second subtracting means 340 to output the fourth output signal y _k (S365). Do.

In addition, the first input signal x _k preferably includes frequency information of the vibration signal generated from the engine 10 before the number of driving cylinders of the driving body 1 is changed.

The fourth output signal y _k is preferably an operation control signal for controlling the actuator 400.

) 출력단계(S359)는, 다음의 수학식And the second output signal (

) Output step (S359), the following equation

Where w _i is the filter coefficient of the i th filter, w _i (k + 1) is the k + 1 th filter coefficient, w _i (k) is the k th filter coefficient, μ is the step size constant, and e _k is It is preferable that the filter coefficient w _i of the adaptive control filter 330 is updated by the error signal, r _{k -i} is the ki-th reference signal, and h _i is the value of the i-th drive system second transfer function.

In addition, between the input step S349 of the reference signal r _k and the target signal d _k and the error signal e _k output step S353, the phase shifting means 350 performs a first input signal x _k . It is preferable to further include the step (S351) of shifting the phase of the target signal (d _k ) in order to make the phase equal to.

And the phase is the following equation

(Where phi k + 1 is the k + 1th phase, phi k is the kth phase, β is the step size at each angle, and e _k is an error signal).

On the other hand, an object of the present invention is a first category (100) which is mounted to a predetermined drive body 1 as another category to obtain a reference signal (r _k ) corresponding to the revolutions per minute of the engine 10 of the drive body (1) ); A second sensor 200 mounted at a predetermined position of the driving body 1 to obtain a target signal d _k corresponding to a predetermined vibration or a predetermined noise generated in the driving body 1; When the number of driving cylinders of the driving body 1 changes, an adaptive algorithm for outputting the same operation control signal as the target signal d _k based on the obtained reference signal r _k and the obtained target signal d _k is obtained. Controller 300 to apply; And an actuator 400 which is operated and controlled based on the operation control signal of the controller 300. The vibration and noise of the variable cylinder engine using the adaptive algorithm may be achieved.

)를 출력하는 적응 제어필터(330); 및 제 1입력신호(x_k)에 제 3출력신호(ck)를 감산하여 제 4출력신호(y_k)를 출력하는 제 2감산수단(340);을 포함하는 것이 바람직하다.The controller 300 subtracts the target signal d _k and the second input signal c _k from the first input signal x _k where the reference signal r _K is changed by the unknown system P. First subtracting means 310 for outputting an error signal e _k ; Least-squares average algorithm applying means (320) for applying the error signal (e _k ) and the third input signal (f _k ) to the least-squares average algorithm and outputting the first output signal; Based on the first output signal and the reference signal rk, the second output signal (

Adaptive control filter 330 for outputting; And second subtracting means 340 for outputting the fourth output signal y _k by subtracting the third output signal ck from the first input signal x _k .

The first input signal x _k may preferably include frequency information and amplitude information of the vibration signal generated from the engine 10 before the number of cylinders of the driving body 1 is changed.

In addition, the fourth output signal y _k is preferably an operation control signal for controlling the operation of the actuator 400.

And the adaptive control filter 330, the following equation

Where w _i is the filter coefficient of the i th filter, w _i (k + 1) is the k + 1 th filter coefficient, w _i (k) is the k th filter coefficient, μ is the step size constant, and e _k is It is preferable that the filter coefficient of the adaptive control filter 330 is updated by the error signal, r _{k -i} is the ki-th reference signal, and h _i is the value of the i-th drive system second transfer function.

The controller 300 preferably further includes phase shifting means 350 for shifting the phase of the target signal d _k such that the phase is the same as the first input signal x _k .

The drive body 1 preferably comprises a vehicle or a ship.

The second sensor 200 is preferably an acceleration sensor attached to the vehicle chassis 20 or an error microphone installed in the vehicle.

According to the present invention, there is an effect of modifying a target signal portion to generate a vibration or noise signal as a desired signal based on an existing algorithm.

In addition, the present invention can achieve efficiency in controlling vibration or noise by using a method of matching a phase between a signal desired to be generated and a signal obtained from existing vibration or noise.

In addition, the present invention can control the vibration or noise in a situation that could not be controlled in the prior art, that is, when the number of cylinders driven in the engine is changed, thereby providing a more comfortable environment for the driver or passenger.

Using adaptive algorithm Example >

FIG. 1 is a schematic diagram showing an Active Vibration Control (AVC) model generally used to control vibration of a vehicle body of the driving body 1. As can be seen in FIG. 1, vibration is transmitted from the engine 10 to the entire vehicle body through the chassis 20.

In addition, vibration of the same frequency may be generated through the actuator 400 using a signal based on RPM (rpm) measured by the first sensor 100 in the engine 10. In this process, the controller 300 controls the vibration of the actuator 400 with the signal measured by the acceleration sensor, which is the second sensor 200, to produce a desired result.

2 is a configuration diagram showing the configuration of the control device of the present invention. With reference to FIG. 2, each structure is demonstrated.

The first sensor 100 is mounted on the driving body 1 to measure the RPM of the driving engine 10 and outputs a reference signal r _k based on this to the controller 300 when the number of driving cylinders is changed. It plays a role.

The second sensor 200 is an acceleration sensor. It is mounted at a predetermined position of the driving body 1 to measure the acceleration of the driving body 1, thereby obtaining a target signal d _k corresponding to the vibration or noise generated in the driving body 1 and thereby the controller 300. To pass on.

When the number of driving cylinders of the driving body 1 changes, the controller 300 receives the reference signal r _k and the target signal d _k acquired by each sensor, and based on this, operates the same as the target signal d _k . The operation of the actuator 400 is controlled through an adaptive algorithm for outputting a control signal. The controller 300 is composed of a first subtraction means 310, a least-squares average algorithm applying means 320, an adaptive control filter 330, and a second subtraction means 340.

The first subtracting means 310 subtracts the target signal d _k and the second input signal c _k from the first input signal x _k whose reference signal r _K is changed by the unknown system P. To output an error signal e _k .

The least-squares mean algorithm applying means 320 outputs the first output signal by inputting the error signal e _k and the third input signal f _k to the least-squares mean algorithm (LMS Algorithm, Least Mean Square Algorithm). Do it. Here, the least-squares average algorithm is an algorithm used to automatically adjust the filter coefficients of the system by using a difference from a desired response so that the error signal e _k is minimized in the meaning of the squared mean error.

)를 출력하는 역할을 하고 Filtered-X LMS 알고리즘에서 사용될 수 있는 안정성 있는 필터로서 FIR(Finite Impulse Response) 필터가 사용된다. 여기서 Filtered-X LMS 알고리즘에 대해서는 추후 도 4에서 자세히 설명한다.The adaptive control filter 330 is based on the first output signal and the reference signal r _k .

Finite Impulse Response (FIR) filter is used as a stable filter that can be used in the Filtered-X LMS algorithm. Here, the Filtered-X LMS algorithm will be described in detail later with reference to FIG. 4.

The second subtracting means 340 subtracts the third output signal c _k from the first input signal x _k to output the fourth output signal y _k .

The phase shifting means 350 compensates for the phase of the target signal d _k in relation to the first input signal x _k . That is, the phase of the target signal d _k obtained from the existing vibrations or noises is updated to be equal to the phase of the first input signal x _k .

The actuator 400 is operated and controlled based on the operation control signal of the controller 300, that is, the fourth output signal y _k to maintain vibration and noise of the driving body 1. In this case, the fourth output signal y _k has the same value as the target signal d _k .

3 is a flowchart briefly illustrating a control method of the present invention. Referring to FIG. 3, the first sensor 100 measures the RPM of the engine 10 to obtain a reference signal r _k (S100), and the second sensor 200 drives the driving cylinder of the driving body 1. The target signal d _k generated by the vibration or noise before the number change is obtained (S200). Next, the controller 300 applies an adaptation algorithm based on the reference signal r _k and the target signal d _k (S300), and controls the operation of the actuator 400 through the application (S400).

4A is a block diagram illustrating an LMS algorithm, and FIG. 4B is a block diagram illustrating a Filtered-X algorithm. 4C is a block diagram illustrating an adaptive algorithm used in the present invention. Each adaptive algorithm will be described.

An adaptive algorithm requires a system with a function of sequentially modifying a signal processing system to be optimal under certain criteria in the process of signal processing when the prior information of an input signal is not fully known. An algorithm that changes the characteristics of

Here, the algorithm shown in FIG. 4A is Bernard Widrow, and the algorithm shown in FIG. 4B is proposed by Samuel D. Sterns and is an adaptive algorithm mainly used for vibration or noise control. Finally, the block diagram of FIG. 4C shows the adaptation algorithm of the embodiment according to the present invention using these two algorithms. The controller portion of each figure represents a signal flow in the controller 300, and the error signal e (k) represents a signal of vibration or noise to be controlled.

An adaptive algorithm used in the present invention will be described with reference to FIG. 4C. The relationship between each signal is as follows.

[Equation 1]

Where rk is the k th reference signal, ω is the angular frequency, and t is the time.

[Equation 2]

Where d _k is the k-th target signal, a is amplitude, ω is angular frequency, and t is time.

&Quot; (3) "

X _k is the k th first input signal x _k , r _ki is the k th and i th reference signals, and Pi is the unknown transfer function. The first input signal x _k is also a value input to the first subtracting means 310 through the unknown P.

&Quot; (4) "

Here, _{k k} is the k th third output signal c _k , r _{k -ij} is the kij reference signal, and h _j is the value of the second transfer function of the j th drive system. Here, the third output signal c _k is a value that is changed and output by the adaptive control filter 330 and the second transmission function H of the driving system.

[Equation 5]

e _k is the k th error signal and X _k , C _k and d _k are the same as in Equations 2, 3 and 4. In this case, the error signal e _k is calculated by the first subtracting means 310, so that the error signal e _k is zero.

&Quot; (6) "

Y _k is the kth fourth output signal, and X _k and C _k are the same values as in Equations 3 and 4. The fourth output signal y _k becomes an operation control signal of the actuator 400 in the embodiment according to the present invention.

[Equation 7]

Equation 7 represents the filter coefficient of the adaptive control filter 330 as a determinant, where w _i denotes the filter coefficient of the i th filter. W _i (k + 1) is the k + 1 th filter coefficient, w _i (k) is the k th filter coefficient, μ is the step size constant, e _k is the error signal, r _{k -i} is the ki th reference signal, h _i is the value of the i-th drive system second transfer function.

범위의 값을 가지며, L+1은 적응 제어필터(330)의 총 개수이며,

Power는 제 2출력신호(

)의 전력을 의미한다.Where the step size value (μ)

Range of values, L + 1 is the total number of adaptive control filters 330,

Power is the second output signal (

) Means power.

The LMS algorithm updates the W value to make the process of making ek of Equation 5 equal to 0. Equation 7 is then derived.

As the control proceeds, the vibration in the driving body 1 changes as follows.

[Equation 8]

Consequently, the adaptive algorithm of the present invention makes the fourth output signal y _k equal to the target signal d _k .

Using Phase Control Algorithm Example >

The phase control algorithm shifts the phase of the target signal d _k such that the phase shifting means 350 is in phase with the first input signal x _k before the step S353 of outputting the error signal e _k . Step S349 is further included. In the exemplary embodiment in which the phase shifting unit 350 is added, the following equations 9, 10, and 11 become an algorithm for updating the phase.

[Equation 9]

Where φ _k is a phase value compensated for by the shift, except for this, the remaining part is represented by Equation 2.

[Equation 10]

Phi _{k + 1} is a k + 1st phase value, and phi _k is a kth phase value here.

[Equation 11]

Β is a step size value at each angle.

<In accordance with the present invention Example  Adaptive Algorithm Step>

FIG. 5A is a flowchart illustrating an application step S300 of an adaptation algorithm used in the control method of the present invention. It demonstrates with reference to FIG. First, the reference signal r _k and the target signal d _k are input to the driving body 1 (S349). Thereafter, the first subtraction unit 310 adds the target signal d _k and the second input signal c _k to the first input signal x _k where the reference signal r _k is changed by the unknown system P. The subtraction is performed to output an error signal e _k (S353).

)를 통해 기준신호(r_k)가 제 3입력신호(f_k)로 변경 출력된다(S355). 다음, 최소자승평균 알고리즘 적용수단(320)이 오차신호(e_k)와 제 3입력신호(f_k)를 최소자승평균 알고리즘에 입력하여 제 1출력신호를 출력한다(S357)Next, the drive system first transfer function based on the vibration of the actuator 400 (

The reference signal r _k is converted into the third input signal f _k and outputted through S) (S355). Next, the least-squares mean algorithm applying means 320 inputs the error signal (e _k ) and the third input signal (f _k ) to the least-squares mean algorithm to output the first output signal (S357).

)를 출력한다(S359).Next, the adaptive control filter 330 based on the first output signal and the reference signal (r _k ) the second output signal (

) Is output (S359).

)가 제 3출력신호(c_k)로 변경 출력되다(S361). 그리고 제 3출력신호(c_k)는 제 1감산수단(310)의 제 2입력신호(c_{k +1})로 갱신되어 피드백이 일어나게 된다. 따라서 제1 감산수단(310)이 제 3출력신호(c_k)를 제 2입력신호(c_{k +1})로 입력받아 오차신호(e_k)를 갱신한다(S363).Next, the second output signal through the drive system second transfer function based on the vibration of the drive body (1) equipped with the actuator (400)

) Is converted into the third output signal c _k and output (S361). In addition, the third output signal c _k is updated with the second input signal c _{k +1} of the first subtraction means 310 to generate feedback. Therefore, the first subtracting means 310 receives the third output signal c _k as the second input signal c _{k +1} and updates the error signal e _k (S363).

Finally, the second subtracting means 340 subtracts the third output signal c _k from the first input signal x _k to output the fourth output signal y _k (S365).

When the phase is compensated using the phase shifting means 350, the input signal S349 and the error signal e _{k of the} reference signal r _k and the target signal d _{k as} shown in FIG. Between the output step S353, a step S351 is further added in which the phase shifting means 350 shifts the phase of the target signal d _k , thereby making the phase equal to the first input signal x _k . I can make it.

Simulation Results

Fig. 6 (a) is an amplitude graph with respect to time of the third output signal c _k as a simulation result using an adaptive algorithm excluding phase control in the embodiment according to the present invention, and Fig. 6 (b) shows implementation according to the present invention. A simulation graph using the adaptive algorithm excluding phase control is an amplitude graph with respect to time of the fourth output signal y _k .

The simulation assumes a state immediately after the mode of the engine 10 is changed and uses a sinusoidal wave having a frequency of 100 Hz. The sampling frequency was set to 1 kHz, the amplitude of the target signal d _k was set to 0.6, and the step size μ was set to 0.0002. The number of adaptive control filters 330 was set to 50.

As can be seen in Figure 6, the amplitude of the fourth output signal (y _k ) is well following 0.6, but the result is not smooth around 0.08 seconds and the amplitude of the third output signal (c _k ) is shown in Figure 7 Slightly larger than

7 (a) is an amplitude graph with respect to time of the third output signal c _k as a simulation result using a phase control adaptive algorithm in an embodiment according to the present invention, and FIG. 7 (b) is a phase in an embodiment according to the present invention. The simulation result using the control adaptation algorithm is an amplitude graph with respect to the time of the fourth output signal y _k .

Simulation conditions are the same as those of FIG. 6 except that the phase difference 2.997rad is compensated.

As can be seen in FIG. 7, the amplitude of the fourth output signal y _k smoothly follows the amplitude 0.6 of the target signal d _k smoothly, and the amplitude of the third output signal c _k is shown in FIG. 6. It can be seen that the amplitude is reduced in comparison with. Therefore, by adding the phase shifting means 350 to compensate for the phase difference, the desired signal can be made without distortion, and the desired result can be obtained with a small output.

1 is a schematic diagram showing an Active Vibration Control (AVC) model generally used to control the vibration of the vehicle body of the drive body 1,

2 is a configuration diagram showing the configuration of the control device of the present invention;

3 is a flowchart showing the procedure of the control method of the present invention;

Figure 4a is a block diagram showing the LMS algorithm, Figure 4b is a block diagram showing the Filtered-X LMS algorithm, Figure 4c is a block diagram showing the adaptive algorithm used in the present invention,

5A is a flowchart illustrating an application step of an adaptive algorithm in a control method of the present invention;

5B is a flowchart showing an application step of an adaptive algorithm including a phase shift step;

6A is an amplitude graph with respect to time of a third output signal as a simulation result using an adaptive algorithm excluding phase control in an embodiment according to the present invention;

6B is an amplitude graph of time of the fourth output signal as a simulation result using an adaptive algorithm excluding phase control in an embodiment according to the present invention;

7A is an amplitude graph with respect to time of a third output signal as a simulation result using a phase control adaptive algorithm in an embodiment according to the present invention;

7B is an amplitude graph with respect to time of the fourth output signal as a simulation result using the phase control adaptive algorithm in the embodiment according to the present invention.

<Main part number of drawing>

1: Drive 10: Engine 20: Chassis

100: first sensor 200: second sensor

300: controller

310: first subtraction means 320: least squares mean algorithm application means

330: adaptive control filter 340: second subtraction means 350: phase shift means

400: actuator

Claims (15)

Acquiring, by the first sensor (100) mounted on a predetermined driving body (1), a reference signal (r _k ) corresponding to the revolutions per minute of the engine (10) of the driving body (S100); Obtaining a target signal (d _k ) corresponding to a predetermined vibration or a predetermined noise generated by the driving body (1) by the second sensor (200) mounted on the driving body (S200); When the number of driving cylinders of the driving body 1 changes, the controller 300 outputs the same operation control signal as the target signal d _k based on the reference signal r _k and the target signal d _k . Applying an adaptive algorithm to be made (S300); and Actuator (400) is operated based on the operation control signal of the controller (S400); control method of the vibration and noise of the variable cylinder engine using an adaptive algorithm, characterized in that it comprises a. The method of claim 1, Application step (S300) of the adaptive algorithm of the controller 300, Receiving, by the controller (300), the reference signal (r _k ) and the target signal (d _k ) (S349); The first subtraction means 310 adds the target signal d _k and the second input signal c _k to the first input signal x _k whose reference signal r _k is changed by the unknown system P. Subtracting and outputting an error signal e _k (S353); A step (S355) of changing and outputting a reference signal (r _k ) to a third input signal (f _k ) through a drive system first transfer function based on the vibration of the actuator (400); Least square average algorithm applying means (320) inputting the error signal (e _k ) and the third input signal (f _k ) to a least square average algorithm and outputting a first output signal (S357); The adaptive control filter 330 based on the first output signal and the reference signal r _k has a second output signal (

Outputting (S359); The second output signal through the drive system second transfer function based on the vibration of the drive body (1)

Step S361 is outputted by changing to a third output signal c _k ; A second subtracting means 340 subtracting the third output signal c _{k from} the first input signal x _k to output a fourth output signal y _k (S363); and And receiving (S365) the first subtracting means (310) receiving the third output signal (c _k ) as the second input signal (c _{k +1} ) and updating the error signal (e _k ). Vibration and noise control method of a variable cylinder engine using an adaptive algorithm, characterized in that. 3. The method of claim 2, The first input signal (x _k ), the vibration of the variable-cylinder engine using the adaptive algorithm, characterized in that the frequency information of the vibration signal generated from the engine 10 before the number of cylinders of the drive body 1 is changed. And control method of noise. 3. The method of claim 2, The fourth output signal (y _k ) is the operation control signal for controlling the actuator (400), the vibration and noise control method of a variable cylinder engine using an adaptive algorithm. 3. The method of claim 2, The second output signal (

) Output step (S359), the following equation

Where w _i is the filter coefficient of the i th filter, w _i (k + 1) is the k + 1 th filter coefficient, w _i (k) is the k th filter coefficient, μ is the step size constant, and e _k is Error signal, r _{k -i} is the ki-th reference signal, h _i is the value of the i-th drive system second transfer function) The filter coefficient (w _i ) of the adaptive control filter (330) is updated by the control method of the vibration and noise of the variable cylinder engine using an adaptive algorithm. 3. The method of claim 2, Between the input step S349 of the reference signal r _k and the target signal d _k and the error signal e _k output step S353, And the phase shifting means 350 shifts the phase of the target signal d _k to make the phase equal to the first input signal x _k (S351). Vibration and noise control method of variable cylinder engine using. The method of claim 6, The phase is represented by the following equation

(Where φ _{k + 1} is the k + 1th phase, φ _k is the kth phase, β is the step size at each angle, and e _k is the error signal.) Vibration and noise control method of a variable cylinder engine using an adaptive algorithm, characterized in that the updated by. A first sensor (100) mounted to a predetermined driving body (1) to obtain a reference signal (r _k ) corresponding to the revolutions per minute of the engine (10) of the driving body (1); A second sensor 200 mounted at a predetermined position of the driving body 1 to obtain a target signal d _k corresponding to a predetermined vibration or a predetermined noise generated in the driving body 1; When the number of driving cylinders of the driving body 1 changes, the same operation control signal as the target signal d _k is output based on the obtained reference signal r _k and the obtained target signal d _k . A controller 300 for applying an adaptive algorithm to And an actuator 400 which is operated and controlled based on the operation control signal of the controller 300. Apparatus for controlling vibration and noise of a variable cylinder engine using an adaptive algorithm. The method of claim 8, The controller 300, The target signal d _k and the second input signal c _k are subtracted from the first input signal x _k where the reference signal r _K is changed by the unknown system P, and the error signal e _k. A first subtracting means (310) for outputting; Least-squares average algorithm applying means (320) for outputting a first output signal by applying the error signal (e _k ) and the third input signal (f _k ) to a least-squares average algorithm; The second output signal (based on the first output signal and the reference signal r _k )

Adaptive control filter 330 for outputting; And And a second subtracting means 340 for subtracting the third output signal c _{k from} the first input signal x _k to output a fourth output signal y _k . Vibration and noise control device of the variable cylinder engine used. The method of claim 9 The first input signal (x _k ) is a variable cylinder engine using an adaptive algorithm, characterized in that the frequency information and amplitude information of the vibration signal generated from the engine 10 before changing the number of cylinders of the drive body (1) Control device of vibration and noise. The method of claim 9, The fourth output signal (y _k ) is a control device for the vibration and noise of the variable cylinder engine using an adaptive algorithm, characterized in that the operation control signal for operating the actuator 400. The method of claim 9, The adaptive control filter 330 is the following equation

Where w _i is the filter coefficient of the i th filter, w _i (k + 1) is the k + 1 th filter coefficient, w _i (k) is the k th filter coefficient, μ is the step size constant, and e _k is Error signal, r _{k -i} is the ki-th reference signal, h _i is the value of the i-th drive system second transfer function) Apparatus for controlling vibration and noise of a variable cylinder engine using an adaptive algorithm, characterized in that the filter coefficient of the adaptive control filter (330) is updated by. The method of claim 9, The controller 300, And a phase shifting means 350 for shifting the phase of the target signal d _k such that the phase is the same as the first input signal x _k . Control device of noise. The method of claim 8, The drive unit (1) is a control device for vibration and noise of a variable cylinder engine using an adaptive algorithm, characterized in that it comprises a vehicle or a ship. The method of claim 8, The second sensor 200 is an acceleration sensor attached to the vehicle chassis 20 or an error microphone installed in the vehicle, the vibration and noise control device of a variable cylinder engine using an adaptive algorithm.

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