WO2012137418A1 - 車両の振動低減システム - Google Patents
車両の振動低減システム Download PDFInfo
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- WO2012137418A1 WO2012137418A1 PCT/JP2012/001736 JP2012001736W WO2012137418A1 WO 2012137418 A1 WO2012137418 A1 WO 2012137418A1 JP 2012001736 W JP2012001736 W JP 2012001736W WO 2012137418 A1 WO2012137418 A1 WO 2012137418A1
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- vibration
- frequency
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- adaptive filter
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B13/00—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion
- G05B13/02—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/002—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion characterised by the control method or circuitry
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/005—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion using electro- or magnetostrictive actuation means
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B13/00—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion
- G05B13/02—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
- G05B13/0205—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric not using a model or a simulator of the controlled system
- G05B13/021—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric not using a model or a simulator of the controlled system in which a variable is automatically adjusted to optimise the performance
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B5/00—Anti-hunting arrangements
- G05B5/01—Anti-hunting arrangements electric
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D19/00—Control of mechanical oscillations, e.g. of amplitude, of frequency, of phase
- G05D19/02—Control of mechanical oscillations, e.g. of amplitude, of frequency, of phase characterised by the use of electric means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
- B60K5/12—Arrangement of engine supports
Definitions
- the present invention relates to a vibration reduction system that reduces vibration at a predetermined position in a vehicle.
- an adaptive control technique using an adaptive digital filter is widely used for the purpose of reducing vibration and sound, and many methods such as Filtered-X LMS (Least Mean Square) have been proposed. Further, various structures such as FIR (Finite Impulse Response) filters and SAN (Single-frequency Adaptive Notch) filters have been proposed for the structure of adaptive filters. Among them, for adaptive control targeting periodic signals such as engine vibrations of automobiles, the technique of configuring an adaptive digital filter with a SAN filter is widely used mainly in terms of improving the amount of control computation and the convergence of the filter. ing.
- Patent Document 1 proposes an active vibration isolator that suppresses vibration at a vibration detection position by driving an electromagnetic actuator by adaptive control for a vibration detection position with the largest control deviation. Yes.
- Various adaptive control methods have been proposed (see, for example, Patent Document 2).
- the coefficient of the adaptive digital filter is updated in accordance with a certain rule. Therefore, while the control is functioning well, the engine to be controlled when the filter converges. Although the vibration takes the minimum value, a certain amount of time is required until the filter converges.
- the filter coefficient is reset to 0 at that time, Update of the filter coefficient is started again at that frequency. That is, every time the rotation speed (frequency) changes, the filter coefficient is reset to 0. Whenever the frequency changes, the time until the filter converges is necessary. It means that it is difficult to obtain a good followability for all of the various steps.
- the present invention has been made in view of such a problem related to the convergence of the filter, and an object of the present invention is to provide a vehicle vibration reduction system capable of improving the high-speed control. .
- the first invention provides at least one vibration device for generating a vibration force, at least one vibration detection device for detecting vibration at a predetermined position in the vehicle, and generation of a control object.
- a frequency is calculated from the rotation speed signal of the source, a cosine wave and a sine wave (reference signal) whose frequency is a real number multiple of the fundamental frequency of the rotation speed signal are generated, and the signal obtained from the vibration detection device and the reference signal are
- An adaptive filter is updated based on a signal (filtered signal) multiplied by a transfer characteristic from the vibration device to the vibration detection device, and an excitation force is generated in the vibration device by the reference signal and the adaptive filter.
- a vibration reduction system for a vehicle comprising: a control device for controlling vibration generated at a predetermined position in the vehicle; wherein the control device changes the rotational speed of the generation source to be controlled.
- a control device for controlling vibration generated at a predetermined position in the vehicle; wherein the control device changes the rotational speed of the generation source to be controlled.
- an adaptive filter value of a past control result corresponding to the frequency is set as an initial value, and an excitation force is generated in the excitation device by the adaptive filter updated from the initial value. The vibration generated at the predetermined position is reduced.
- the control device includes the adaptive filter of the past control result corresponding to the frequency among the values of the adaptive filter of the past control result stored for each frequency. Is rewritten with the updated value of the adaptive filter.
- the initial value of the adaptive filter is not reset to 0, but the data of the filter coefficient stored in advance is given as the initial value, and the convergence value (optimal solution) Since the coefficient is updated from the filter coefficient close to (), the arrival time to the convergence value (optimum solution) of the filter is shortened, and the high-speed control can be improved.
- the coefficient is always calculated from the filter coefficient close to the convergence value (optimal solution) in the current environment even if there is aged deterioration of the vibration exciter or a change in the environment used (temperature, etc.). Since updating is performed, the arrival time until the convergence value (optimum solution) of the filter is shortened, and not only can the speed of control be improved, but also the robustness of the control can be maintained.
- FIG. 1 is a schematic diagram showing an embodiment of a vehicle vibration reduction system according to the present invention.
- FIG. 2 is a block diagram showing a control system according to an embodiment of the vehicle vibration reduction system.
- FIG. 3 is a diagram illustrating estimated transfer characteristics for each frequency stored in the control device.
- FIG. 4 is a diagram illustrating the convergence value of the adaptive filter coefficient for each frequency stored in the control device.
- FIG. 5 is a flowchart for explaining the operation of the present invention.
- FIG. 6 is a diagram illustrating the relationship between the crankshaft rotation pulse signal and the rotation primary and secondary vibration waveforms of the crankshaft.
- FIG. 7 is a flowchart for explaining the operation when the convergence value of the adaptive filter coefficient for each frequency stored in the control device is updated.
- FIG. 1 is a schematic diagram showing an embodiment of a vehicle vibration reduction system according to the present invention.
- the engine 12 is supported by an active control mount (ACM) 3 a incorporating an actuator such as a voice coil and a plurality of engine mounts 5.
- the ACM 3a has a function as a vibration device as well as a function of supporting the engine 12, and functions to actively generate a vibration force to suppress vibration at a predetermined position in the vehicle.
- the engine 12 is provided with a sensor 6 for measuring the rotational speed of the crankshaft of the engine.
- a sensor 9 for detecting vibration is attached to a predetermined position in the vehicle.
- a control device 11 for controlling the damping force of the ACM 3a is disposed at a position in front of the driver's seat (for example, in the instrument panel).
- the sensor 9 that detects vibration functions to detect vibration (for example, acceleration) at a predetermined position in the vehicle in real time.
- the sensor 9 detects the vibration with high sensitivity and near the vibration source (for example, engine mount). It is preferable to be disposed on the vehicle body side portion or the like.
- the sensor 9 is disposed on the steering 4 or the floor portion of the driver's seat, but may be provided on the seat 13, the vehicle body 14, the headrest portion of the front seat, the floor portion of the rear seat, or the like.
- an acceleration sensor, a load sensor, or the like can be used.
- the control device 11 may be arranged at any location in the vehicle.
- FIG. 2 is a block diagram showing a control system according to an embodiment of a vehicle vibration reduction system.
- the control device 11 includes a control frequency calculation unit 48, a cosine wave generator 31, a sine wave generator 32, an adaptive filter 33, an adaptive filter 34, an adder 35, an adder 36, and an LMS calculation unit 37. And an adder 38 and an LMS calculator 39.
- the control frequency calculation unit 48 calculates a control frequency from the crankshaft rotation pulse signal output from the sensor 6.
- the cosine wave generator 31 generates a cosine wave having the frequency calculated by the control frequency calculation unit 48.
- the sine wave generator 32 generates a sine wave having a frequency calculated by the control frequency calculation unit 48.
- the adaptive filter 33 adjusts the gain of the cosine wave (reference signal) output from the cosine wave generator 31.
- the adaptive filter 34 adjusts the gain of the sine wave (reference signal) output from the sine wave generator 32.
- the adder 35 adds the control signal from the adaptive filter 33 and the control signal from the adaptive filter 34, and outputs a control signal y (t) to the ACM (actuator) 3a.
- the adder 36 adds the signal obtained by multiplying the reference signal from the cosine wave generator 31 by the transfer characteristic from the ACM (actuator) 3a to the sensor 9 and the reference signal from the sine wave generator 32 to the sensor 9 from the ACM (actuator) 3a. And the signal multiplied by the transfer characteristic up to.
- the LMS calculation unit 37 reads the output of the adder 36 and the acceleration signal (error signal) e (t) detected by the sensor 9 and updates the filter coefficient of the adaptive filter 33.
- the adder 38 adds the signal obtained by multiplying the reference signal from the cosine wave generator 31 by the transfer characteristic from the ACM (actuator) 3a to the sensor 9 and the reference signal from the sine wave generator 32 to the sensor 9 from the ACM (actuator) 3a. And the signal multiplied by the transfer characteristic up to.
- the LMS calculation unit 39 reads the output of the adder 38 and the acceleration signal (error signal) e (t) detected by the sensor 9 and updates the filter coefficient of the adaptive filter 34.
- C indicates the actual transfer characteristic from the ACM 3a to the sensor 9.
- Cr (fk) and Ci (fk) are estimated transfer characteristics from the ACM 3a to the sensor 9 at each control frequency fk.
- Cr (fk) and Ci (fk) are the coefficient of the cosine component and the coefficient of the sine component, respectively. is there.
- the control device 11 obtains Cr (fk) and Ci (fk) in advance at each control frequency fk and stores them for each frequency as shown in FIG.
- the control device 11 stores the convergence values of the filter coefficients of the adaptive filters 33 and 34 obtained at each frequency when adaptive control was performed in the past as shown in FIG.
- the control device 11 stores one Wr (fk) and one Wi (fk) for each frequency, but the operating state (slow acceleration or sudden acceleration, the engine shape due to the road surface difference) It is considered that the optimum solution varies depending on the load state, etc., so Wr (fk) and Wi (fk) are obtained and stored in advance for each of a plurality of different operation states, and Wr ( fk) and Wi (fk) may be read out.
- FIG. 5 is a flowchart for explaining the operation of the vibration reduction system of the present invention.
- the control frequency calculation unit 48 detects the rotation speed of the generation source to be controlled, and calculates the frequency from the rotation speed signal (S101).
- the control device 11 determines whether or not the frequency (the number of rotations) has changed (S102).
- the control device 11 stores the convergence value Wr of the filter coefficients of the adaptive filters 33 and 34 based on the past control results corresponding to the frequency stored in the control device 11.
- (Fk) and Wi (fk) are read and set as initial values in the adaptive filters 33 and 34 (S103).
- the control device 11 generates a cosine wave having a fundamental frequency and a frequency that is a multiple of the fundamental frequency by the cosine wave generator 31, and generates the cosine wave by using the initial value of the filter coefficient described above by the adaptive filter 33.
- the gain of the reference signal output from the device 31 is adjusted.
- the sine wave generator 32 generates a sine wave having a fundamental frequency and a frequency that is a multiple of the fundamental frequency
- the adaptive filter 34 uses the initial value of the filter coefficient described above to generate the sine wave generator 32. Adjust the gain of the reference signal output from.
- the control device 11 adds the control signal from the adaptive filter 33 and the control signal from the adaptive filter 34, and outputs the control signal y (t) to the ACM (actuator) 3a. (S106).
- the control device 11 uses the adder 36 to multiply the reference signal from the cosine wave generator 31 by the Cr (fk) of the control frequency fk and the reference signal from the sine wave generator 32 to the control frequency fk.
- the signal multiplied by Ci (fk) is added (filtered signal is created) (S104).
- the control device 11 reads the output signal of the adder 36 and the acceleration signal (error signal) e (t) detected by the sensor 9 and updates the filter coefficient of the adaptive filter 33 in the LMS calculation unit 37 ( S105).
- the control device 11 uses a signal obtained by multiplying the reference signal from the cosine wave generator 31 by Cr (fk) at the control frequency fk and the reference signal from the sine wave generator 32 to ⁇ Ci at the control frequency fk.
- the signal multiplied by (fk) is added (filtered signal creation) (S104).
- the control device 11 reads the output of the adder 38 and the acceleration signal (error signal) e (t) detected by the sensor 9 and updates the filter coefficient of the adaptive filter 34 in the LMS calculation unit 39 (S105).
- the adaptive filters 33 and 34 output the control signal y (t) to the ACM 3a based on the updated filter coefficient (S106).
- the present invention repeats the above operation, and when the frequency of the control target to be reduced fluctuates, the initial value of the adaptive filter is not reset to 0, but is stored in advance with filter coefficient data (created based on past control results). Is given as the initial value, the filter coefficient is updated from the initial value.
- the initial value of the filter coefficient is almost the convergence value, and the coefficient is updated from the filter coefficient close to the convergence value. Therefore, the arrival time to the filter convergence value (optimal solution) is shortened, and the control speed is high. Can be greatly improved.
- FIG. 6 is a diagram illustrating the relationship between the crankshaft rotation pulse signal and the rotation primary and secondary vibration waveforms of the crankshaft.
- the rotation pulse signal shown in FIG. 6 is a pulse signal in which there is a missing tooth used for detecting the crank angle of the crankshaft.
- this position is the origin of the cosine wave and sine wave generated by the cosine wave generator 31 and the sine wave generator 32 (the amplitude of the sine wave). Is 0, or the cosine wave amplitude is 1).
- the origin is determined on the basis of the missing position of the rotation pulse signal of the crankshaft.
- the missing tooth position is, for example, a position determined as (previous High level period) ⁇ 2 ⁇ (Low level period).
- the origin is set to the time point when the first pulse signal falling after the determined missing position (tooth missing period) is detected.
- the origin may be set at the time when the rising edge of the pulse signal is detected.
- the present invention can determine the origin of the sine wave and cosine wave by the above-described method, for example.
- a high-speed control effect can be obtained by using the filter coefficient stored in the control device 11.
- the crankshaft rotation pulse signal when the crankshaft rotation pulse signal is not missing, the ignition pulse signal and TDC (Top Dead Center) position of a specific cylinder are detected. It goes without saying that the reference point of the crankshaft (the origin position of the sine wave and cosine wave) may be determined using a signal or the like.
- the present invention may have a function of updating the stored value to the convergence value of the latest control result.
- FIG. 7 is a flowchart for explaining the operation when the convergence value of the adaptive filter coefficient for each frequency stored in the control device is updated.
- FIG. 7 shows a form in which the values of the adaptive filters 33 and 34 updated at each time are stored as Wr (fk) and Wi (fk) of the frequency fk at that time at any time.
- the control device 11 detects the rotational speed of the generation source to be controlled at a certain sample time n, and calculates the frequency fk from the rotational speed signal (S201). Next, the control device 11 reads the convergence values Wr (fk) and Wi (fk) of the filter coefficients of the adaptive filter corresponding to the frequency fk stored in the control device 11 and sets them as initial values in the adaptive filter.
- the filtered signal is created in the same manner as S104 shown in FIG. 5 (S202). Next, similarly to S105 shown in FIG. 5, the control device 11 reads the filtered signal and the acceleration signal (error signal) e (n) detected by the sensor 9, and updates the filter coefficient of the adaptive filter. (S203).
- the control device 11 After updating the adaptive filter, the control device 11 rewrites Wr (fk) and Wi (fk) with the updated values of the adaptive filter (S204). The adaptive filter outputs the control signal y (n) to the ACM 3a based on the updated filter coefficient (S205). Further, the control device 11 repeats the above processing at the sample time n + 1, reads the stored Wr (fk) and Wi (fk), and updates the adaptive filter.
- Wr (fk) and Wi (fk) stored for each frequency are constantly updated as optimum values in the current use environment, and the present invention is shown in FIG. It is also possible to omit the process of detecting frequency fluctuations.
- the calculation unit 48 has a function capable of calculating a plurality of frequencies to be controlled, calculates a fundamental frequency determined from the rotation signal and a frequency that is a multiple of the basic frequency, and the cosine wave generator 31 and the sine wave generator 32 The cosine wave and sine wave of the selected frequency can be generated.
- the present invention can generate the cosine wave generator 31 and the sine wave generation.
- the device 32 generates a set frequency and a sine wave and cosine wave that are real multiples of the set frequency. In the present invention, parallel operations are required for the number of frequencies to be reduced.
- the present invention is applicable to a case where there are two or more ACMs and / or a sensor that detects vibration. It can be applied to two or more cases.
- the vibration device is not limited to the ACM, but may be an active mass damper (Active Mass Damper) or a torque rod type.
- the place where the vibration device is provided is not limited to the lower part of the engine, but may be between the suspension device and the vehicle body. According to the present invention, for example, by providing a vibration device between the suspension device and the vehicle body, vibration due to rotation of the tire can be more efficiently reduced.
- the present invention is applicable not only to vibration reduction but also to sound reduction.
- the present invention includes a speaker for reducing sound instead of the vibration device, and a noise detection device microphone such as a microphone instead of the vibration detection device.
- the filter coefficient update processing of the adaptive filter is performed using the LMS algorithm.
- the filter coefficient update processing is performed using a complex LMS algorithm (Complex Least Mean Square Algorithm) or a Normalized LMS algorithm (Normalized Least).
- Mean Square Algorithm Mean Square Algorithm
- Projection Algorithm Projection Algorithm
- SHARF algorithm Simple Hyperstable Adaptive Recursive Filter Algorithm
- RLS algorithm Recursive Least Square Algorithm
- FLMS algorithm Fast Least Mean Square Adgorithm-appropriate
- Filter using Discrete Cosine Transform Discrete Cosine Transform
- SAN filter Single Frequency Adaptive Notch Filter
- neural network Neral Network
- Genetic Algorithm Genetic Algorithm
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Abstract
Description
その中で、自動車のエンジン振動等の周期信号を対象とした適応制御については、制御演算量やフィルタの収束性向上の面で、適応デジタルフィルタをSANフィルタで構成する手法が主に広く用いられている。
つまり、回転数(周波数)が変動するたびにフィルタ係数が0にリセットされるということは、周波数が変動するたびにフィルタ収束までの時間が必要となり、例として自動車の運転状態を考えると、アクセルの様々な踏み方全てに対して良好な追従性を得ることは困難であることを意味する。
制御装置11は、車両内のいずれの場所に配置しても良い。
適応フィルタ33,34は、更新されたフィルタ係数に基づいて制御信号y(t)をACM3aに出力する(S106)。
これは、奇数個のシリンダーを持つエンジンでは、上記方法で原点とするクランク角度位置における制御対象の振動方向が一意に定まらないためであり、現在の制御開始時の原点位置における振動方向が、過去の制御開始時の原点位置における振動方向と逆方向である場合に生じる。
しかしながら、このような場合にも、例えば、クランク軸の回転パルス信号だけでなく、上述したシリンダーの点火パルス信号やTDC位置を検出する信号などの別の信号を併用することで、原点およびその位置での振動方向が一意に決定できるため、提案する制御手法を適用することが可能である。
4 ステアリング
6 センサ
7 センサ
9 センサ
10 車両
11 制御装置
12 エンジン
13 シート
14 車体
31 余弦波生成器
32 正弦波生成器
33,34 適応フィルタ
35,36,38 加算器
37,39 LMS演算部
48 制御周波数算出部
Claims (2)
- 加振力を発生する少なくとも1つの加振装置と、車両内の所定位置での振動を検出する少なくとも1つの振動検出装置と、制御対象の発生源の回転数信号から周波数を算出して、周波数が回転数信号の周波数の実数倍の参照信号を生成し、前記振動検出装置から得た信号と前記参照信号とに基づいて適応フィルタを更新し、前記適応フィルタにより前記加振装置に加振力を発生させて、前記車両内の所定位置に生じる振動を低減するように制御する制御装置と、を備えた車両の振動低減システムであって、
前記制御装置は、前記制御対象の発生源の回転数が変化した際に、前記適応フィルタに、前記周波数に対応する過去の制御結果の適応フィルタの値を初期値として設定し、前記初期値から更新された適応フィルタにより前記加振装置に加振力を発生させて、前記車両内の所定位置に生じる振動を低減するようにしたことを特徴とする車両の振動低減システム。 - 前記制御装置は、周波数毎に格納している過去の制御結果の前記適応フィルタの値のうち、前記周波数に対応する過去の制御結果の前記適応フィルタの値を、前記更新された適応フィルタの値で書き換えることを特徴とする請求項1に記載の車両の振動低減システム。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013508734A JP5736036B2 (ja) | 2011-04-05 | 2012-03-13 | 車両の振動低減システム |
| CN201280017522.1A CN103477116B (zh) | 2011-04-05 | 2012-03-13 | 车辆减振系统 |
| US14/009,676 US9857776B2 (en) | 2011-04-05 | 2012-03-13 | Vehicle vibration reduction system |
| EP12768227.6A EP2696099B1 (en) | 2011-04-05 | 2012-03-13 | Vehicle vibration reduction system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011083612 | 2011-04-05 | ||
| JP2011-083612 | 2011-04-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2012137418A1 true WO2012137418A1 (ja) | 2012-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/JP2012/001736 Ceased WO2012137418A1 (ja) | 2011-04-05 | 2012-03-13 | 車両の振動低減システム |
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| Country | Link |
|---|---|
| US (1) | US9857776B2 (ja) |
| EP (1) | EP2696099B1 (ja) |
| JP (1) | JP5736036B2 (ja) |
| CN (1) | CN103477116B (ja) |
| WO (1) | WO2012137418A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015205659A (ja) * | 2014-04-23 | 2015-11-19 | 株式会社ブリヂストン | 車両の振動低減システム |
| CN115416471A (zh) * | 2022-08-30 | 2022-12-02 | 株洲时代新材料科技股份有限公司 | 一种基于转速陷波的动力总成主动悬置多阶振动控制方法 |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US9454953B2 (en) * | 2013-02-20 | 2016-09-27 | Mitsubishi Electric Corporation | Active vibration/noise control apparatus |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP2696099B1 (en) | 2016-12-28 |
| US20140032044A1 (en) | 2014-01-30 |
| EP2696099A4 (en) | 2014-10-22 |
| CN103477116B (zh) | 2016-01-20 |
| EP2696099A1 (en) | 2014-02-12 |
| JP5736036B2 (ja) | 2015-06-17 |
| CN103477116A (zh) | 2013-12-25 |
| US9857776B2 (en) | 2018-01-02 |
| JPWO2012137418A1 (ja) | 2014-07-28 |
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