JP3838646B2 - Actuator drive controller for active anti-vibration support device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an actuator drive control device for an active vibration-proof support device in which the operation of an actuator is controlled by a control means so as to suppress transmission of vibration of an engine capable of cylinder deactivation.
[0002]
[Prior art]
Such an active vibration isolating support device is known from the following patent document.
[0003]
This active vibration isolating support device changes the spring constant by applying a current to the actuator to vibrate the movable member. The relationship between the peak current value and the phase of the applied current that sets the spring constant is determined in advance. It is memorized as a map, and the peak current value and phase of the current to be applied to the actuator are obtained from the map according to the engine speed, so that it is effective for active vibration isolating support devices in various engine speed regions. Anti-vibration function is demonstrated.
[0004]
[Patent Literature]
Japanese Patent Laid-Open No. 7-42783
[Problems to be solved by the invention]
By the way, when a command signal for switching the engine from the all cylinder state to the cylinder deactivation state or a command signal for switching from the cylinder deactivation state to the all cylinder state is output, the operation state of the engine is in the cylinder operation period in which the cylinder can be deactivated. There are cases where the cylinder is in an operation period where cylinder deactivation is not possible. Nevertheless, if the control of the active vibration isolating support device is switched between the control of the all cylinder state and the control of the cylinder deactivation state at the moment when the command signal is output, the engine is substantially all cylinders. The active vibration isolation support device controls the cylinder deactivation state even though the engine is in the state, or the active vibration isolation support device controls the all cylinder state even though the engine is substantially in the cylinder deactivation state In the meantime, the active vibration isolating support device may not be able to exhibit an effective vibration isolating effect.
[0006]
The present invention has been made in view of the above-described circumstances, and an object thereof is to allow an active vibration-proof support device to exhibit an effective vibration-proof function when switching between an all-cylinder state and a cylinder deactivation state of an engine.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, the actuator of the active vibration isolating support device that controls the operation of the actuator by the control means so as to suppress the transmission of the vibration of the engine capable of stopping the cylinder. In the drive control device, the control means sets a timing for switching the operation cycle of the actuator based on the operation state when a switching signal for switching the operation state of the engine between the cylinder deactivation state and the all cylinder state is output. An actuator drive control device for an active vibration-proof support device is proposed.
[0008]
According to the above configuration, when a switching signal for switching the engine operating state between the cylinder deactivation state and the all cylinder state is output, the timing for switching the operation cycle of the actuator is determined based on the engine operating state at that time. Therefore, it is possible to prevent the operating state of the engine from being inconsistent with the control state of the active vibration isolation support device, and to exhibit an effective vibration isolation function in the active vibration isolation support device.
[0009]
According to the invention described in claim 2, in addition to the configuration of claim 1, in the engine, the cylinder that can be stopped and the cylinder that cannot be stopped in an all cylinder state are alternately exploded, and the control When the switching signal for switching the engine operating state from the all-cylinder state to the cylinder deactivation state is output, when the cylinder in the operation period is a cylinder capable of deactivation, the means for starting the operation period of the next next cylinder In addition, an actuator drive control device for an active vibration-proof support device is proposed in which the operation cycle of the actuator is switched.
[0010]
According to the above configuration, if the switching signal for switching from the all cylinder state to the cylinder deactivation state is output, the operation period of the next cylinder, that is, the operation of the next deactivation cylinder Since the operation cycle of the actuator is switched at the start of the period, the control state of the active type anti-vibration support device is switched at the timing when the operating state of the engine is switched from the all cylinder state to the cylinder deactivation state. The effect can be exhibited effectively.
[0011]
According to a third aspect of the present invention, in addition to the configuration of the first aspect, the engine is configured such that a cylinder that can be stopped and a cylinder that cannot be stopped in an all-cylinder state are alternately exploded, and the control When the switching signal for switching the engine operating state from the all-cylinder state to the cylinder deactivation state is output, when the cylinder in the operation period is a cylinder that cannot be deactivated, in accordance with the start of the operation period of the next cylinder An actuator drive control device for an active vibration isolating support device is proposed, characterized in that the operation cycle of the actuator is switched.
[0012]
According to the above configuration, when the switching signal for switching from the all cylinder state to the cylinder deactivation state is output, the operation period of the next cylinder, that is, the operation period of the next deactivation cylinder is determined. Since the operation cycle of the actuator is switched at the start, the control state of the active vibration isolating support device is switched in accordance with the timing at which the engine operating state is switched from the all cylinder state to the cylinder deactivation state, and the anti-vibration effect is achieved. It can be exhibited effectively.
[0013]
According to the invention described in claim 4, in addition to the configuration of claim 1, in the engine, the cylinder that can be stopped and the cylinder that cannot be stopped in an all cylinder state are alternately exploded, and the control When a switching signal for switching the operating state of the engine from the cylinder deactivation state to the all cylinder state is output, when the cylinder in the operation period is a cylinder capable of deactivation, the means starts the operation period of the next next cylinder. In addition, an actuator drive control device for an active vibration-proof support device is proposed in which the operation cycle of the actuator is switched.
[0014]
According to the above configuration, if the switching signal for switching from the cylinder deactivation state to the all cylinder state is output, the operation period of the next cylinder, that is, the operation of the next deactivation cylinder Since the operation cycle of the actuator is switched at the start of the period, the control state of the active anti-vibration support device is switched according to the timing at which the engine operating state is substantially switched from the cylinder deactivation state to the all-cylinder state. The effect can be exhibited effectively.
[0015]
According to the invention described in claim 5, in addition to the configuration of claim 1, in the engine, the cylinder that can be stopped and the cylinder that cannot be stopped in an all-cylinder state are alternately exploded, and the control When the switching signal for switching the engine operating state from the cylinder deactivation state to the all-cylinder state is output, when the cylinder in the operation period is a cylinder that cannot be deactivated, in accordance with the start of the operation period of the next cylinder An actuator drive control device for an active vibration isolating support device is proposed, characterized in that the operation cycle of the actuator is switched.
[0016]
According to the above configuration, when the switching signal for switching from the cylinder deactivation state to the all cylinder state is output, the operation period of the next cylinder, that is, the operation period of the next deactivation cylinder is determined. Since the operation cycle of the actuator is switched at the start, the control state of the active vibration isolating support device is switched in accordance with the timing at which the engine operating state is substantially switched from the cylinder deactivation state to the all cylinder state, and the anti-vibration effect is achieved. It can be exhibited effectively.
[0017]
The electronic control unit U of the embodiment corresponds to the control means of the present invention.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described based on examples of the present invention shown in the accompanying drawings.
[0019]
1 to 8 show an embodiment of the present invention. FIG. 1 is a longitudinal sectional view of an active vibration isolating support device, FIG. 2 is a sectional view taken along line 2-2 in FIG. 1, and FIG. FIG. 4 is an enlarged view of the main part of FIG. 1, FIG. 5 is a diagram showing the ignition sequence of the V-type 6-cylinder engine, and FIG. 6 explains the switching timing between the all cylinder state and the cylinder deactivation state. FIG. 7 is a flowchart illustrating switching control between the all cylinder state and the cylinder deactivation state, and FIG. 8 is a flowchart illustrating an actuator control method.
[0020]
The active vibration isolation support device M (active control mount: ACM) shown in FIGS. 1 to 4 is for elastically supporting an engine E capable of cylinder deactivation control of an automobile on a vehicle body frame F. Control is performed by an electronic control unit U to which a crank pulse sensor Sa that detects a crank pulse that is output as the crankshaft of the engine E rotates and an engine ECU 10 that controls cylinder deactivation of the engine E are connected. This crank pulse is output 24 times per rotation of the crankshaft, that is, once every 15 ° of the crank angle.
[0021]
The active vibration isolating support device M has a substantially axisymmetric structure with respect to the axis L, and has an inner cylinder 12 welded to a plate-like mounting bracket 11 coupled to the engine E, and an outer periphery of the inner cylinder 12. The outer cylinder 13 is coaxially arranged, and the upper and lower ends of the first elastic body 14 made of thick rubber are joined to the inner cylinder 12 and the outer cylinder 13 by vulcanization adhesion. A disc-shaped first orifice forming member 15 having an opening 15b in the center, a second orifice forming member 16 having a bowl-shaped cross section with an open upper surface and formed in an annular shape, and a bowl shape having the same upper surface opened The third orifice forming member 17 having an annular shape and formed in an annular shape is integrated by welding, and the outer circumferences of the first orifice forming member 15 and the second orifice forming member 16 are overlapped to form the outer cylinder. 13 is fixed to a caulking fixing portion 13a provided at a lower portion.
[0022]
The outer periphery of the second elastic body 18 formed of film-like rubber is fixed to the inner periphery of the third orifice forming member 17 by vulcanization adhesion, and is fixed to the inner periphery of the second elastic body 18 by vulcanization adhesion. The cap member 19 is fixed by press-fitting to the movable member 20 arranged on the axis L so as to be movable up and down. The outer periphery of the diaphragm 22 is fixed to the ring member 21 fixed to the caulking fixing portion 13a of the outer cylinder 13 by vulcanization bonding, and the cap member 23 fixed to the inner periphery of the diaphragm 22 by vulcanization bonding is the movable member. It is fixed to the member 20 by press fitting.
[0023]
Accordingly, the first liquid chamber 24 in which the liquid is sealed is defined between the first elastic body 14 and the second elastic body 18, and the second liquid chamber 25 in which the liquid is sealed between the second elastic body 18 and the diaphragm 22. Is partitioned. The first liquid chamber 24 and the second liquid chamber 25 communicate with each other through the upper orifice 26 and the lower orifice 27 formed by the first to third orifice forming members 15, 16, and 17.
[0024]
The upper orifice 26 is an annular passage formed between the first orifice forming member 15 and the second orifice forming member 16, and communicates with the first orifice forming member 15 on one side of a partition wall 26a provided in a part thereof. A hole 15a is formed, and a communication hole 16a is formed in the second orifice forming member 16 on the other side of the partition wall 26a. Accordingly, the upper orifice 26 is formed over a substantially one-round range from the communication hole 15a of the first orifice forming member 15 to the communication hole 16a of the second orifice forming member 16 (see FIG. 2).
[0025]
The lower orifice 27 is an annular passage formed between the second orifice forming member 16 and the third orifice forming member 17, and the second orifice forming member 16 is connected to the second orifice forming member 16 on one side of a partition wall 27a provided in a part thereof. A communication hole 16a is formed, and a communication hole 17a is formed in the third orifice forming member 17 on the other side of the partition wall 27a. Therefore, the lower orifice 27 is formed over a substantially one-round range from the communication hole 16a of the second orifice forming member 16 to the communication hole 17a of the third orifice forming member 17 (see FIG. 3).
[0026]
From the above, the first liquid chamber 24 and the second liquid chamber 25 communicate with each other by the upper orifice 26 and the lower orifice 27 connected in series.
[0027]
An annular mounting bracket 28 for fixing the active vibration isolating support device M to the vehicle body frame F is fixed to the caulking fixing portion 13 a of the outer cylinder 13. The movable member 20 is attached to the lower surface of the mounting bracket 28. An actuator housing 30 that constitutes the outline of the actuator 29 for driving is welded.
[0028]
A yoke 32 is fixed to the actuator housing 30, and a coil 34 wound around the bobbin 33 is accommodated in a space surrounded by the actuator housing 30 and the yoke 32. A bottomed cylindrical bearing 36 is fitted to the cylindrical portion 32a of the yoke 32 fitted to the inner periphery of the annular coil 34. A disk-shaped armature 38 facing the upper surface of the coil 34 is slidably supported on the inner peripheral surface of the actuator housing 30, and a step portion 38 a formed on the inner periphery of the armature 38 is engaged with the upper portion of the bearing 36. Match. The armature 38 is biased upward by a disc spring 42 disposed between the armature 38 and the upper surface of the bobbin 33, and is positioned by engaging with a locking portion 30 a provided in the actuator housing 30.
[0029]
A cylindrical slider 43 is slidably fitted to the inner periphery of the bearing 36, and a shaft portion 20 a extending downward from the movable member 20 loosely penetrates the upper bottom portion of the bearing 36 and is fixed inside the slider 43. Connected to the boss 44. A coil spring 41 is disposed between the upper bottom portion of the bearing 36 and the slider 43, and the bearing 36 is biased upward and the slider 43 is biased downward by the coil spring 41.
[0030]
When the coil 34 of the actuator 29 is in a demagnetized state, the elastic force of the coil spring 41 acts downward on the slider 43 slidably supported by the bearing 36 and is disposed between the bottom surface of the yoke 32. The spring force of the coil spring 45 is acting upward, and the slider 43 stops at a position where the spring forces of both the coil springs 41 and 45 are balanced. When the coil 34 is excited from this state and the armature 38 is attracted downward, the coil spring 41 is compressed by being pushed by the stepped portion 38a and sliding the bearing 36 downward. As a result, the elastic force of the coil spring 41 increases and the slider 43 descends while compressing the coil spring 45, so the movable member 20 connected to the slider 43 via the boss 44 and the shaft portion 20a descends, The second elastic body 18 connected to the movable member 20 is deformed downward and the volume of the first liquid chamber 24 is increased. Conversely, when the coil 34 is demagnetized, the movable member 20 rises, the second elastic body 18 is deformed upward, and the volume of the first liquid chamber 24 decreases.
[0031]
Thus, when low-frequency engine shake vibration occurs during the traveling of the automobile, the upper orifice 26 changes when the first elastic body 14 is deformed by the load input from the engine E and the volume of the first liquid chamber 24 changes. The liquid goes back and forth between the first liquid chamber 24 and the second liquid chamber 25 connected via the lower orifice 27. When the volume of the first liquid chamber 24 is enlarged / reduced, the volume of the second liquid chamber 25 is reduced / expanded accordingly, but the volume change of the second liquid chamber 25 is absorbed by the elastic deformation of the diaphragm 22. At this time, the shape and size of the upper orifice 26 and the lower orifice 27 and the spring constant of the first elastic body 14 are set so as to exhibit a low spring constant and a high damping force in the frequency region of the engine shake vibration. Vibration transmitted from the engine E to the vehicle body frame F can be effectively reduced.
[0032]
In the frequency region of the engine shake vibration, the actuator 29 is kept in an inoperative state.
[0033]
When vibration having a higher frequency than the engine shake vibration, that is, vibration during idling due to rotation of the crankshaft of engine E or vibration during cylinder deactivation occurs, the first liquid chamber 24 and the second liquid chamber 25 are connected. Since the liquid in the upper orifice 26 and the lower orifice 27 is in a stick state and cannot exhibit the anti-vibration function, the actuator 29 is driven to exhibit the anti-vibration function.
[0034]
The electronic control unit U controls energization to the coil 34 on the basis of signals from the crank pulse sensor Sa and the engine ECU 10 in order to activate the actuator 29 of the active vibration isolating support device M to exhibit the vibration isolating function.
[0035]
As shown in FIG. 5, the engine E of the present embodiment is a 4-cycle V type 6 cylinder engine, and includes three cylinders # 1, # 2 and # 3 capable of stopping cylinders in one bank. The other bank is provided with three cylinders # 4, # 5, and # 6 that cannot be deactivated. The order of ignition of the six cylinders # 1 to # 6 is # 1 → # 4 → # 2 → # 5 → # 3 → # 6, and the cylinders in both banks explode alternately. At the time of cylinder deactivation, the three cylinders # 1, # 2 and # 3 in one bank are deactivated all at once.
[0036]
One cycle of the cylinder deactivation state is composed of a deactivation of the cylinder capable of deactivating the cylinder and a subsequent explosion of the cylinder incapable of deactivation of the cylinder. The start of the deactivation of the cylinder is the start of the operation period of the cylinder capable of deactivation. The end of the cylinder deactivation state ends with the end of the operation period of the cylinder incapable of cylinder deactivation.
[0037]
In the 4-cycle V-type 6-cylinder engine E of the present embodiment, the explosion is performed six times for every two rotations of the crankshaft in the entire cylinder state, so that the third vibration that generates three vibrations for one rotation of the crankshaft. In addition, since the explosion is performed three times for every two rotations of the crankshaft in the cylinder deactivation state, a 1.5th order vibration state is generated in which 1.5 times of vibration is generated for one rotation of the crankshaft.
[0038]
Next, the contents of the switching control between the all cylinder state and the cylinder deactivation state will be described based on the time chart of FIG.
[0039]
When a switching command for switching from the all cylinder state to the cylinder deactivation state is output at the position (1) in FIG. 6 (A), the cylinder that is the operation period of the # 2 cylinder that can be deactivated and the cylinder that becomes the next operation period is Since the # 5 cylinder is incapable of cylinder deactivation, the active vibration isolation support device M vibrates the engine E when the cylinder deactivation control is started in synchronization with the start of the operation period of the # 5 cylinder incapable of cylinder deactivation. There is a possibility that the effective anti-vibration effect cannot be exhibited by improper operation that does not match the condition. In this case, therefore, the control of all cylinders is continued until the operation period of the # 5 cylinder incapable of stopping the cylinder, which becomes the next operation period, and the cylinder # 3 cylinder in which the cylinder can be stopped in the next operation period. The control of the cylinder deactivation state is started at the start of the operation period (actually controlled to the cylinder deactivation state).
[0040]
In addition, at the position (3) in FIG. 6B, when a switching command for switching from the all cylinder state to the cylinder deactivation state is output, the cylinder that is the operation period of the # 5 cylinder incapable of cylinder deactivation and is the next operation period Since the # 3 cylinder is capable of cylinder deactivation, control of the cylinder deactivation state is started in accordance with the start of the operation period of the # 3 cylinder (actually controlled to the cylinder deactivation state).
[0041]
In addition, when a switching command for switching from the cylinder deactivation state to the all cylinder state is output at the position (2) in FIG. 6 (A), the operation period of the # 1 cylinder capable of deactivating the cylinder (actually controlled to the cylinder deactivation state). The cylinder that will be the next operating period is the # 4 cylinder that cannot be deactivated. However, if the control of the all cylinder state is started at the start of the operating period of the # 4 cylinder that cannot deactivate the cylinder. There is a possibility that the active vibration isolating support device M may not perform its effective anti-vibration effect due to improper operation that does not match the vibration state of the engine E due to the influence of the # 1 cylinder which has been deactivated before that. Therefore, in this case, the control of the cylinder deactivation state is continued until the operation period of the cylinder # 4 which can be deactivated next, which becomes the operation period, and the cylinder # 2 which can be deactivated in the next operation period is further increased. The control of the entire cylinder state is started at the start of the operation period.
[0042]
Also, at the position (4) in FIG. 6 (B), when a switching command for switching from the cylinder deactivation state to the all cylinder state is output, the cylinder that is the operation period of the # 4 cylinder incapable of cylinder deactivation and the cylinder that will be the next operation period Is a # 2 cylinder capable of cylinder deactivation, so that the control of all cylinder states is started at the start of the operation period of the # 2 cylinder.
[0043]
The above operation will be described in more detail based on the flowchart of FIG.
[0044]
First, in step S1, a cylinder deactivation command signal, that is, whether the all cylinder state or the cylinder deactivation state is commanded is read from the engine ECU 10, and in step S2, the number of the cylinder currently in operation is read. In the subsequent step S3, if there is a control state switching command, and if the cylinder deactivation command is being issued in step S4, that is, if a switch from the all cylinder state to the cylinder deactivation state is instructed, the cylinders currently in operation in step S5 It is determined whether the cylinder can be deactivated.
[0045]
If the cylinder in the current operation period is not a cylinder that can be deactivated in step S5, vibration in the cylinder deactivation state (1.5th-order vibration) is estimated from the start of the operation cycle of the next cylinder in step S9. In S10, cylinder deactivation control parameters are calculated. The paths of steps S4, S5, S9, and S10 correspond to the state (3) in the time chart of FIG.
[0046]
If the cylinder currently in operation in step S5 is a cylinder that can be deactivated, in step S11 until 1TDC (top dead center) elapses in step S6, that is, until the operation period of the next cylinder passes. All cylinder state vibrations (tertiary vibrations) are estimated, and all cylinder control parameters are calculated in step S12. If the operation period of the next cylinder has passed in step S6, the cylinder deactivation vibration (1.5th order vibration) is estimated in step S9, and the cylinder deactivation control parameters are calculated in step S10. The paths of steps S4, S5, S6, S11, and S12, or the paths of steps S4, S5, S6, S9, and S10 correspond to the state (1) in the time chart of FIG.
[0047]
On the other hand, if the cylinder deactivation command is not being issued in step S4, that is, if switching from the cylinder deactivation state to the all-cylinder state is commanded, whether or not the cylinder currently in operation is a cylinder capable of deactivation in step S7. Determine whether.
[0048]
If the cylinder in the current operation period is not a cylinder that can be deactivated in step S7, in step S11, vibration of all cylinder states (tertiary vibration) is estimated from the start of the operation cycle of the next cylinder, and in step S12. Calculate all cylinder control parameters. The paths in steps S4, S7, S11, and S12 correspond to the state (4) in the time chart of FIG.
[0049]
If the cylinder currently in operation in step S7 is a cylinder that can be deactivated, in step S9 until 1TDC (top dead center) elapses in step S8, that is, until the operation period of the next cylinder passes. A cylinder deactivation state vibration (1.5th order vibration) is estimated, and a cylinder deactivation control parameter is calculated in step S10. When the operation period of the next cylinder has passed in step S8, vibration in all cylinder states (tertiary vibration) is estimated in step S11, and parameters for all cylinder control are calculated in step S12. The path of steps S4, S7, S8, S9, and S10, or the path of steps S4, S7, S8, S11, and S12 corresponds to state (2) in the time chart of FIG.
[0050]
Finally, based on the parameters calculated in steps S10 and S12, a drive command value for the active vibration isolating support device M is determined in step S13.
[0051]
Next, details of steps S9, S10, S11, S12, and S13 of the flowchart of FIG. 7 will be described based on the flowchart of FIG.
[0052]
First, in step S21, a crank pulse output from the crank pulse sensor Sa every 15 ° of the crank angle is read, and in step S22, the read crank pulse is compared with a reference crank pulse (TDC signal of a specific cylinder). To calculate the crank pulse time interval. In the next step S23, the crank angular speed ω is calculated by dividing the crank angle of 15 ° by the time interval of the crank pulse, and in step S24, the crank angular speed ω is time differentiated to calculate the crank angular acceleration dω / dt. In the following step S25, the torque Tq around the crankshaft of the engine E is set as I, and the inertia moment around the crankshaft of the engine E is set as I.
Tq = I × dω / dt
Calculate by This torque Tq is zero assuming that the crankshaft is rotating at a constant angular velocity ω, but in the expansion stroke, the angular velocity ω increases due to acceleration of the piston, and in the compression stroke, the angular velocity ω decreases due to deceleration of the piston. Since crank angular acceleration dω / dt is generated, torque Tq proportional to the crank angular acceleration dω / dt is generated.
[0053]
In the next step S26, the maximum and minimum values of the torques that are temporally adjacent are determined, and in step S27, the active vibration isolation support device that supports the engine E as a deviation between the maximum and minimum values of the torque, that is, the amount of torque fluctuation. The amplitude at the position of M is calculated. In step S28, the duty waveform and timing (phase) of the current applied to the coil 34 of the actuator 29 are determined.
[0054]
As described above, in the transition period in which the engine E is switched from the all cylinder state to the cylinder deactivation state, not immediately after the switching command is output, but in accordance with the start of the operation period of the first cylinder that can be deactivated, that is, the engine Since the control of the active vibration isolation support device M is switched in accordance with the timing when E substantially shifts from the all cylinder state to the cylinder deactivation state, the active vibration isolation support device M performs an inappropriate operation during the transition period. Therefore, it is possible to avoid a situation where the effective anti-vibration function cannot be exhibited.
[0055]
Further, in the transition period when the engine E switches from the cylinder deactivation state to the all cylinder state, not immediately after the switching command is output, but at the start of the cylinder operation period during which the first cylinder deactivation is possible, that is, the engine E is cylinder deactivation. Since the control of the active vibration isolating support device M is switched in accordance with the timing of the transition from the state to the all-cylinder state, the active vibration isolating support device M performs an inappropriate operation during the transition period and is effective in preventing the vibration. The situation where the vibration function cannot be exhibited can be avoided.
[0056]
As mentioned above, although the Example of this invention was explained in full detail, this invention can perform a various design change in the range which does not deviate from the summary.
[0057]
For example, the active vibration-proof support device M is not limited to a liquid-sealed device, and may use a piezo element.
[0058]
In the embodiment, the active vibration isolating support apparatus M that supports the engine E of the automobile is illustrated. However, the active vibration isolation support apparatus M of the present invention can be applied to support an engine other than the automobile.
[0059]
【The invention's effect】
As described above, according to the first aspect of the present invention, when the switching signal for switching the engine operating state between the cylinder deactivation state and the all cylinder state is output, based on the engine operating state at that time. Since the timing to switch the actuator operation cycle is determined, it is possible to prevent the operating state of the engine from being inconsistent with the control state of the active anti-vibration support device, and to provide an effective anti-vibration function for the active anti-vibration support device. It can be demonstrated.
[0060]
According to the second aspect of the present invention, if the switching signal for switching from the all cylinder state to the cylinder deactivation state is output, the operation period of the next cylinder, that is, the operation period of the next cylinder, that is, Since the operation cycle of the actuator is switched in accordance with the start of the operation period of the next deactivatable cylinder, the control of the active vibration isolating support device is performed in accordance with the timing at which the engine operation state is substantially switched from the all cylinder state to the cylinder deactivation state. The state can be switched, and the anti-vibration effect can be exhibited effectively.
[0061]
According to the third aspect of the present invention, if the switching signal for switching from the all cylinder state to the cylinder deactivation state is output, the operation period of the next cylinder, that is, Since the operation cycle of the actuator is switched in accordance with the start of the operation period of the cylinder that can be deactivated, the control state of the active vibration isolating support device is adjusted according to the timing at which the engine operation state is switched from the all cylinder state to the cylinder deactivation state. Switching and effectively exhibiting the anti-vibration effect.
[0062]
According to the fourth aspect of the present invention, if the switching signal for switching from the cylinder deactivation state to the all cylinder state is output, the operation period of the next next cylinder, that is, the operation period of the next cylinder, Since the operation cycle of the actuator is switched in accordance with the start of the operation period of the next deactivatable cylinder, the active vibration isolating support device is controlled in accordance with the timing at which the engine operation state is substantially switched from the cylinder deactivation state to the all cylinder state. The state can be switched, and the anti-vibration effect can be exhibited effectively.
[0063]
According to the fifth aspect of the present invention, when the switching signal for switching from the cylinder deactivation state to the all cylinder state is output, the operation period of the next cylinder, that is, Since the operation cycle of the actuator is switched in accordance with the start of the operation period of the cylinder that can be deactivated, the control state of the active vibration isolating support device is adjusted in accordance with the timing at which the engine operation state is substantially switched from the cylinder deactivation state to the all cylinder state. Switching and effectively exhibiting the anti-vibration effect.
[Brief description of the drawings]
1 is a longitudinal sectional view of an active vibration isolating support device. FIG. 2 is a sectional view taken along line 2-2 in FIG. 1. FIG. 3 is a sectional view taken along line 3-3 in FIG. FIG. 5 is a diagram showing the ignition sequence of a V-type 6-cylinder engine. FIG. 6 is a time chart for explaining the switching timing between the all cylinder state and the cylinder deactivation state. Flowchart explaining control [FIG. 8] Flowchart showing actuator control method [Explanation of symbols]
E Engine U Electronic control unit (control means)
29 Actuator

Claims (5)

In the actuator drive control device of the active vibration isolating support device, the operation of the actuator (29) is controlled by the control means (U) so as to suppress the transmission of vibration of the engine (E) capable of cylinder deactivation.
The control means (U) operates the operation cycle of the actuator (29) based on the operation state when a switching signal for switching the operation state of the engine (E) between the cylinder deactivation state and the all cylinder state is output. An actuator drive control device for an active vibration isolating support device, characterized in that the timing for switching between is determined. In the engine (E), a cylinder that can be stopped and a cylinder that cannot be stopped in an all-cylinder state are alternately exploded,
When the switching signal for switching the operation state of the engine (E) from the all-cylinder state to the cylinder deactivation state is output, the control means (U) performs the next operation when the cylinder in the operation period is a deactivatable cylinder. The actuator drive control device for an active vibration-proof support device according to claim 1, wherein the operation cycle of the actuator (29) is switched in accordance with the start of the operation period of the cylinder. In the engine (E), a cylinder that can be stopped and a cylinder that cannot be stopped in an all-cylinder state are alternately exploded,
When the switching signal for switching the operation state of the engine (E) from the all-cylinder state to the cylinder deactivation state is output, the control means (U) 2. The actuator drive control device for an active vibration-proof support device according to claim 1, wherein the operation cycle of the actuator (29) is switched in accordance with the start of the operation period. In the engine (E), a cylinder that can be stopped and a cylinder that cannot be stopped in an all-cylinder state are alternately exploded,
When the switching signal for switching the operation state of the engine (E) from the cylinder deactivation state to the all cylinder state is output, the control means (U) The actuator drive control device for an active vibration-proof support device according to claim 1, wherein the operation cycle of the actuator (29) is switched in accordance with the start of the operation period of the cylinder. In the engine (E), a cylinder that can be stopped and a cylinder that cannot be stopped in an all-cylinder state are alternately exploded,
When the switching signal for switching the operation state of the engine (E) from the cylinder deactivation state to the all-cylinder state is output, the control means (U) 2. The actuator drive control device for an active vibration-proof support device according to claim 1, wherein the operation cycle of the actuator (29) is switched in accordance with the start of the operation period.

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