CN102900804A

CN102900804A - Vibration isolating unit for vehicle

Info

Publication number: CN102900804A
Application number: CN201210262610XA
Authority: CN
Inventors: 佐藤裕介; 金堂雅彦
Original assignee: Nissan Motor Co Ltd
Current assignee: Nissan Motor Co Ltd
Priority date: 2011-07-29
Filing date: 2012-07-26
Publication date: 2013-01-30
Anticipated expiration: 2032-07-26
Also published as: CN102900804B; JP2013028303A; JP5834595B2

Abstract

The invention provides a vibration isolating unit for vehicles. Driving power of an actuator can be reduced by the device. The vibration isolating unit for vehicles comprise a rod (11) with one end (12) thereof fixed on an engine (1) and the other end (13) fixed on the vehicle body; an inertia block (15) supported on the rod (11); an actuator (17) for driving the inertia block to move backward and forward in an axis direction of the rod; an electric control component (26) for driving the actuator; and an electric power storage component (26) for supplying electric power to the electric control component; wherein the actuator does not drive, the electric control component converts vibration of the inertia block into electric power and charge the electric power into the electric power storage component.

Description

The vehicle isolation mounting

Technical field

The present invention relates to a kind of for suppressing from as the motor of the vibration source vehicle isolation mounting to the vibration of car body side transmission.

Background technique

Isolation mounting as the vibration that suppresses to transmit from from motor to car body side, a kind of such isolation mounting has been proposed: set the rigid body resonant frequency of torsion bar to such an extent that be lower than the resonant frequency of motor, and in driver, produce the power (patent documentation 1) that is directly proportional with the axially displaced speed of torsion bar.

Patent documentation 1: TOHKEMY 2011-12757 communique

But, in above-mentioned isolation mounting in the past, because the driving electric power of driver is to supply with from the battery that carries on vehicle, therefore, have the fuel consume rising problem such with driving the corresponding amount of electric power of vehicle.

Summary of the invention

The problem that wish of the present invention solves is, a kind of vehicle isolation mounting that can reduce the driving electric power of supplying with from the torsion bar outside to driver is provided.

The present invention addresses the above problem by the following method: when the non-driving of driver, utilize driver that the vibration of inertial mass is converted to electric power and store in the electric power storage parts, on the other hand, when driver drives, utilize the electric power that stores in the electric power storage parts to drive the control inertial mass.

Because the vibration of motor also makes the inertial mass vibration, therefore, stop the vibration isolation function during in, can utilize driver that the vibrational energy of this inertial mass is converted to electric power and store.And, when needs vibration isolation function, can utilize the electric drive driver that stores, therefore, only utilize the amount that stores just can reduce the driving electric power of supplying with to driver from the outside of torsion bar.

Description of drawings

Figure 1A is the plan view that expression is applied to the isolation mounting of one embodiment of the present invention the example of vehicle motor.

Figure 1B is the plan view of Figure 1A.

Fig. 2 is the exploded perspective view of Figure 1A and Figure 1B.

Fig. 3 is the sectional view of the upper torsion bar of expression Figure 1B.

Fig. 4 A is the stereogram of the upper torsion bar of expression Figure 1B.

Fig. 4 B is the stereogram from the upper torsion bar of opposition side 4A with the aid of pictures.

Fig. 5 A is four views (plan view, left view, right elevation, plan view) of the upper torsion bar of presentation graphs 4A, Fig. 4 B.

Fig. 5 B is the state behind the substrate has been removed in expression from the upper torsion bar of Fig. 5 A stereogram and plan view.

Fig. 5 C is stereogram and the plan view of the substrate of presentation graphs 5A.

Fig. 6 A is the plan view that expression is installed on the upper torsion bar of Fig. 4 A, Fig. 4 B the installation example of motor.

Fig. 6 B is the plan view that expression is installed on the upper torsion bar of Fig. 4 A, Fig. 4 B another installation example of motor.

Fig. 7 is the figure for the vibrational state of explanation motor.

Fig. 8 A is that the upper torsion bar of expression is when driving and the plotted curve of the vibration characteristics during non-driving.

Fig. 8 B is the figure that the vehicle of expression an embodiment of the present invention is used the switching example in the control area of isolation mounting and the zone of charging.

Fig. 8 C is the plotted curve of the power consumption of the vibrational energy of inertial mass of the upper torsion bar of expression under the idle state and the driver under the control mode.

Fig. 9 is the frequency characteristic figure of transmission power that can obtain the structure of dual vibration isolating effect.

Figure 10 is the plotted curve of setting example of the lining rigidity of expression torsion bar.

Figure 11 is the plotted curve of an example that utilizes the acceleration transducer calculation engine rotating speed of torsion bar for explanation.

Figure 12 is the plotted curve of another example that utilizes the acceleration transducer calculation engine rotating speed of torsion bar for explanation.

Embodiment

At first, describe with pendulum model isolation mounting, so-called (Pendulum) motor for the vehicle of using an embodiment of the present invention.Shown in Figure 1A and Figure 1B, adopt the supporting structure of the motor 1 of pendulum model to be: with respect to the principal inertia axis L of motor 1 and the width direction of vehicle (with the direction of direct of travel quadrature, be also referred to as the left and right vehicle wheel direction) abreast the configuration so-called transverse engine 1, two supporting point P1, P2 of supporting engine 1 are positioned near the principal inertia axis L of motor 1 in the overlooking of Figure 1B, across center of gravity G each other in the position of axial opposed side, in the side-looking of Figure 1A, two supporting point P1, P2 are all to be positioned at the vehicle top of principal inertia axis L.In addition, two supporting point P1, P2 as illustrated in fig. 2 by about separately engine mounting 3,4 consist of.

The advantage of the supporting structure of pendulum model motor is: suspend motor 1 in midair supporting as Bai, and, utilization is installed in torsion bar 5 on the car body, 6 such rod member, inhibition can utilize the member of less number of packages to obtain effectiveness in vibration suppression same around the action of the motor center of gravity G of the straight line swing that links two supporting point P1, P2.That is, the motor 1 that utilizes the pendulum mode to support, under the effect of rotating inertia force, motor 1 tilts around the axis that links two 2 supporting point P1, P2 when motor 1 running.In order to prevent the prerequisite lower support motor 1 of this inclination, have the 1st torsion bar (upper torsion bar) 5 for the roughly upper half part that links motor 1 and vehicle body-side member and be used for linking all the other lower half portions of motor 1 and the 2nd torsion bar (lower torsion bar) 6 of vehicle body-side member.Upper torsion bar 5 is linked to motor 1 from the vehicle upper right, and another lower torsion bar 6 is linked to motor 1 from under-vehicle, utilizes this two

torsion bars

5,6, can prevent that pendulum model motor 1 from tilting.

Above-mentioned motor 1 for example is array 4 cylinders, V-type 6 Cylinder engines with two rank balace weights.In with array 4 Cylinder engines of two rank balace weights, V-type 6 Cylinder engines, (Japanese: basic number of times) lower its unbalance inertia force is less, therefore mainly is that the reaction force acts of engine torque change is in motor 1 at the basic order of engine revolution.Thereby the present inventor draws such opinion: under the basic order of engine revolution, mainly form noise and car internal vibration in the car from above-mentioned two torsion bars 5 of supporting torque, 6 input.In addition, well-known, mainly be when vehicle accelerates, concerning the passenger, can become problem with noise in the car that reaches about 1000Hz of the high order formation of basic order.

As previously mentioned, the vehicle of this example comprises two

torsion bars

5,6 with isolation mounting.As shown in Figure 1B, upper torsion bar 5 is installed between the top and car body of motor 1.With respect to this, such as Figure 1A, Figure 1B and shown in Figure 2, lower torsion bar 6 is installed between the bottom and subframe 2 of motor 1.Because the upper torsion bar 5 of this example is identical with the basic structure of lower torsion bar 6, therefore the structure of upper torsion bar 5 described this content of the structure reference of lower torsion bar 6 and description thereof is omitted.

With regard to Fig. 2 and upper torsion bar 5 shown in Figure 3, in order its internal structure to be described, to be expressed as the state of having removed behind the housing 20 shown in Fig. 4 A etc., but shown in Fig. 4 A～Fig. 6 B, actual upper torsion bar 5 forms the structure that comprises housing 20 grades.As shown in Figures 2 and 3, upper torsion bar 5 comprises: bar 11, and the lining 13 that the lining 12 of an end of this bar 11 is fixed on the top of motor 1, the other end is fixed on the car body; Inertial mass 15, it is supported on bar 11; Driver 17, its make inertial mass 15 bar 11 axially on back and forth movement.

Fig. 3 is the major component sectional view of upper torsion bar 5, and a pair of

lining

12,13 is fixed by welding in the two ends of bar-shaped bar 11.Be fixed on the lining 12 that starts pusher side by urceolus 12a cylindraceous, with the coaxial inner core 12b cylindraceous of urceolus 12a and will change urceolus 12a and elastomer (soundproof material) 12c that inner core 12b links up consists of.Utilize edge and Fig. 3 paper orthogonal direction to run through the bolt (not shown) of inner core 12b, lining 12 is fixed on the motor 1.

On the other hand, the lining 13 that is fixed on car body side is also identical with above-mentioned lining 12, by urceolus 13a cylindraceous, consist of with the coaxial inner core 13b cylindraceous of urceolus 13a and with elastomer (soundproof material) 13c that this urceolus 13a and inner core 13b link up.Utilize edge and the direction of Fig. 3 paper quadrature to run through the bolt (not shown) of inner core 13b, lining 13 is fixed on the member of car body side.

In addition, the mode of execution shown in Fig. 3 is that lining 12 is fixed on the motor 1, lining 13 is fixed on the structure of car body side, but is not limited thereto, and also lining 12 can be fixed on car body side, and lining 13 is fixed on the motor 1.And, upper torsion bar 5 shown in Fig. 3, it is the example of two bolt parallel configuration of

penetration liner

12,13 inner core 12b, 13b, but the upper torsion bar 5 shown in Fig. 2, Fig. 4 A～Fig. 6 B is two

bolts

18,19 examples along mutually orthogonal direction configuration of

penetration liner

12,13 inner core 12b, 13b.

Such lining

12,13 fixed-direction can suitably change according to the shape of the fixing part of the fixing part of car body side and motor 1.

The elastomer of this example (soundproof material) 12c, 13c are the members that has spring and attenuation function concurrently, for example can use elastic caoutchouc.

In the upper torsion bar 5 of this example, make the diameter of

lining

12,13 urceolus and inner core different.That is, make the diameter of urceolus 13a, inner core 13b of lining 13 relatively less than the urceolus 12a of the lining 12 of correspondence, the diameter of inner core 12b, and, also make the rigid phase of elastomer 13c of lining 13 over the ground greater than the rigidity of the elastomer 12c of lining 12.Rigidity by making a pair of

lining

12,13

elastomer

12c, 13c is different, produces the axial resonance of motor rigidity and the bar rigidity of bar that is fit to dual vibration isolation and resonate under two different frequencies.

Namely, shown in solid line among Fig. 9, the axial motor rigidity resonance A of the bar that is determined by the rigidity of the elastomer 12c of lining 12 is roughly near 0 frequency f 1[Hz] the lower generation, the axial bar rigidity resonance B of the bar that is determined by the rigidity of the elastomer 13c of lining 13 is at the frequency f 2[Hz near 200Hz] the lower generation.If easy understanding and based on motor rigidity resonance and the resonance of bar rigidity extremely the spring block system that forms of simplification describe, then motor rigidity resonance A is determined by the rigidity (spring constant) of the elastomer 12c of engine quality, lining 12, bar rigidity resonance B by the quality between the elastomer 13c of the elastomer 12c of lining 12 and lining 13, be the urceolus part of bar 11(and each lining) quality and rigidity (spring constant) decision of the elastomer 13c of lining 13.

The bending of motor 1 monomer, reverse 1 time resonant frequency f3 in the situation of common mobile engine for about 280Hz～350Hz, if as this example, motor rigidity resonance A roughly is made as zero, bar rigidity resonance B is made as about 200Hz, then can effectively suppresses the bending of motor 1, the synchronous vibration that reverses to car body transmission (dual vibration isolation) in high frequency side (in the vibration isolation zone).

According to foregoing, for the frequency that makes motor rigidity resonance A and bar rigidity resonance B less than the bending of motor, the resonant frequency f3 that reverses, if determine the rigidity (spring constant) of the elastomer 12c of lining 12, be the urceolus part of bar 11(and each lining as the quality between the elastomer 13c of the elastomer 12c of lining 12 and lining 13) quality, reach the rigidity (spring constant) of the elastomer 13c of lining 13.So, the effect that has so dual vibration isolation, that is, make motor rigidity resonance A and bar rigidity resonance B two different frequencies, be that the frequency f 1 of low frequency range and frequency f 2 these two parts of intermediate frequency zone occur, thereby be prevented the effect of the vibration of transmitting from motor 1 to car body side.But, in isolation mounting of the present invention, be not to make the diameter of

lining

12,13 urceolus and inner core different, also lining 12,13 can be made identical structure.

Turn back to Fig. 3, the upper torsion bar 5 of this example comprises the inertial mass 15 that is made of the magnetic metal of tool etc., driver 17, acceleration transducer 21, band-pass filter 22, and voltage amplifier circuit 23.

Inertial mass 15 and bar 11 be arranged on coaxially bar 11 around.Are the point-symmetric shapes centered by the center of bar 11 (center of gravity) in the cross section of the inertial mass 15 of axially seeing of bar 11, and the center of gravity of inertial mass 15 is consistent with the center of bar 11.Shown in Fig. 2 and Fig. 5 C, inertial mass 15 is made square tubular, and the axial two ends (upper and lower end among Fig. 3) of the bar of inertial mass 15 are attached on the bar 11 by yielding support spring 16 separately.Yielding support spring 16 for example is the leaf spring with less rigidity.The part of the inwall 15a of inertial mass 15 is protruded towards the permanent magnet 17c ground of aftermentioned driver 17 and is arranged.

As shown in Figure 3, be provided with driver 17 in the space of the upper torsion bar 5 of this example between inertial mass 15 and bar 11.Driver 17 is the iron core 17a, the coil 17b that comprise the square tube shape, and the driver of the line style (linear motion-type) of permanent magnet 17c, its be used for making inertial mass 15 bar 11 axially on back and forth movement.

The iron core 17a that consists of coil magnetic circuit is made of stacked steel plate, and it is fixedly installed on the bar 11.Iron core 17a is being divided into a plurality of members before the torsion bar 5 in assembling, by with binder with these a plurality of members be bonded in bar-shaped bar 11 around, integral body has formed the iron core 17a of square tube shape.Coil 17b reels and is installed on the iron core 17a of the party's tubular.Permanent magnet 17c is arranged on the outer circumferential face of iron core 17a.

Because driver 17 is such structures, therefore, the reactance torque actuated inertial mass 15 that can utilize the magnetic field that produced by coil 17b and permanent magnet 17c to produce makes inertial mass 15 linear motions,, makes inertial mass 15 back and forth movement on bar 11 axial that is.On the contrary, in the vibration of transmitting motor 1 and inertial mass 15 bar 11 axially on during back and forth movement, act among the coil 17b by electromagnetic induction and to produce alternating current (a.c.).That is, because driver 17 also plays the function of generator, therefore, use in the isolation mounting at the vehicle of this example, utilize this generation power to drive driver 17.This detailed content sees below to be stated.

Between

lining

12,13 and at the face parallel with the horizontal plane in axle center by bar 11 acceleration transducer 21 is installed, this acceleration transducer 21 is used for the axial vibration acceleration of the roughly shaft core position of bar 11 is detected as the acceleration that is delivered to the vibration of bar 11 from motor 1.Specifically, shown in Fig. 5 C, acceleration transducer 21 is installed on the substrate 24, and this substrate 24 is installed on the opening portion 20A of housing 20.So, be imported in the voltage amplifier circuit 23 by band-pass filter 22 from the signal of the bar axial acceleration of acceleration transducer 21, the signal after amplifying in this voltage amplifier circuit 23 puts on the coil 17b(control voltage of driver 17).Voltage amplifier circuit 23 for example can be made of operational amplifier.Shown in Fig. 5 C, these band-pass filters 22 and voltage amplifier circuit 23 also are installed on the substrate 24 at the opening portion 20A place that is installed on housing 20.

Inertial mass 15 is utilized soft leaf spring (yielding support spring 16) supporting, and for example inertial mass 15 axially produces resonance with respect to bar 11 at bar under the lower frequency of 10Hz～100Hz.For example, because the vibration frequency on idling speed two rank of 4 Cylinder engines is about 20Hz, therefore, as long as the resonant frequency of inertial mass 15 can be made as 10Hz, with regard to the operating condition regardless of motor 1, can both suppress inertial mass 15 resonance.

On the other hand, when wish is set as the such low frequency of 10Hz with the resonant frequency of inertial mass 15, excessive and be difficult to carry out in the situation of this setting in inertial mass 15, as long as in advance the resonant frequency of inertial mass 15 is set to such an extent that be lower than the bar rigidity resonance B(that wish suppresses and in mode of execution, be 200Hz) about 1/2 frequency, mutual resonant frequency will fully pull open, and can fully suppress vibration and transmit.

And, by utilizing acceleration transducer 21 detected acceleration signals to pass into band-pass filter 22, can under unnecessary frequency, not control, improve control stability, and, can seek the power consumption that suppresses unnecessary and in the frequency range of target, suppress reliably transmission power.As shown in Figure 9, be that resonant frequency f2 with bar rigidity resonance B multiply by specified value for the vibration isolation zone of bar rigidity resonance B

And the frequency range of frequency f more than 5 of obtaining, therefore, as band-pass filter 22, selection comprises the axial resonant frequency (low frequency of 10Hz～100Hz) of the bar of inertial mass 15, makes this resonant frequency～wave filter that passes through for the signal in the frequency range in the vibration isolation zone of bar rigidity resonance B, that is, make until the wave filter that the signal of the upper limit of the scope that the control in the vibration isolation zone can not be dispersed (for example being 400Hz) passes through.

And, the speed feedback control that increases for the decay that can make as the bar 11 of control object, in the frequency band that in band-pass filter 22, passes through, self-driven device 17 produces such power, that is, will add negative sign with the power that the bar axial velocity of utilizing acceleration transducer 21 detected vibrations roughly is directly proportional and the power that obtains.

Below, housing 20 and substrate 24 are described.

Shown in Fig. 4 A～Fig. 6 B, the housing 20 of this example is made of rigid body fixing or that be integrally formed on

lining

12,13 urceolus 12a, the 13a, bar 11 axially and the transmission of the vibration equivalent ground of pitch direction.And the position between the

lining

12,13 of housing 20 is formed with opening portion 20A, substrate 24 with this opening portion 20A airtightly or the mode of watertight ground sealing install.Contain inertial mass shown in Figure 3 15 and driver 17 in the inside of housing 20, utilize substrate 24 to protect and can not connect water of running into from the outside etc.

Shown in Fig. 5 C, at the interarea of substrate 24 above-mentioned acceleration transducer 21 is installed, comprises the control circuit 25 of band-pass filter 22 and voltage amplifier circuit 23 and comprises the secondary cell 26 of power conversion circuit.

Acceleration transducer 21 wherein is to be installed on the substrate 24 in the mode that between the

lining

12,13, namely is positioned on the face parallel with the horizontal plane of the axle center of passing bar 11 (axle of supporting torque).As shown in Figure 7, the vibration that 4 Cylinder engines etc. form at above-below direction generation effect unbalance inertia force, with respect to the position configuration acceleration transducer 21 that axially staggers upward of the torque of supporting rod 11 time, up-down vibration because of motor 1, in torsion bar, produce the vibration of pitch direction, because degree of will speed up sensor 21 is configured in by on torque support axle and the face parallel with horizontal plane, therefore the vibration medium sensitivity in the pitch direction reduces but in the present example.That is, axial vibration detection precision raises.The result, as shown in figure 10, even in the situation of the axial rigidity resonance that reduces significantly bar 11, owing to almost do not detect the noise of the rigidity resonance of pitch direction, therefore, as in the past, the rigidity resonance that acceleration transducer 21 detects the pitch direction drops to general regions, thus, can suppress to make control electric power to increase such bad phenomenon.

Particularly, because degree of will speed up sensor 21 is configured between the

lining

12,13, therefore, be configured in the existing zone of joint of rigidity resonance of the pitch direction of bar 11 by degree of will speed up sensor 21, the sensitivity meeting of pitch direction becomes less.

So, be installed between motor 1 and the car body at the upper torsion bar 5 with said structure, drive with engine speed 2000rpm～6000rpm in the situation of motor, on driving control the driver 17 of torsion bar 5 and do not drive observed the vibration state of vehicle fore-and-aft direction in the situation of driver 17 of torsion bar 5 in the control after, the results are shown among Fig. 8 A.Can draw such opinion according to this result: be high speed area in engine speed, be in the zone more than the 3500rpm in the result shown in this figure, compare with the situation of the driver 17 that does not drive the upper torsion bar 5 of control, effectiveness in vibration suppression in the situation of the driver 17 of the upper torsion bar 5 of driving control is larger, but be low rotation speed area in engine speed, be in the zone below the 3500rpm in the result shown in this figure, no matter whether drive the driver 17 of the upper torsion bar 5 of control, its magnitude of vibrations does not all have much variations.

Therefore, use in the isolation mounting at the vehicle of this example, shown in Fig. 8 B, control, thereby in the operating condition of engine speed less than 3500rpm, upwards driver 17 supply capabilities of torsion bar 5 are not non-drivings, utilize driver 17 that the vibrational energy of inertial mass 15 is converted to alternating electromotive force, the power conversion circuit (converter circuit etc.) that utilizes secondary cell 26 to comprise is converted to direct current power with this alternating electromotive force, this direct current power is charged in the secondary cell 26 again.

On the other hand, in engine speed is operating condition more than the 3500rpm, utilizing power conversion circuit will fill after direct current power in secondary cell 26 is converted to alternating electromotive force, supply in the driver 17 of torsion bar 5, as described above vibration control inertial mass 15, thus bring into play the vibration isolation function.Fig. 8 C be motor 1 measure during for the idling rotation status vibrational energy of inertial mass 15 result's (left side bar chart), and measure result's (right side bar chart) of the power consumption when carrying out suppressing the control of resonance of vehicle fore-and-aft direction for driver 17 supply capabilities of torsion bar 5 upwards, the two is roughly equal electric power.Thereby, under common operating condition, need not from outside supply capability, only utilize the vibrational energy of inertial mass 15 just can reach self-sufficiency.

In addition, as long as can obtain testing signal from the speed probe that is arranged at motor 1 as the engine speed of threshold value that makes driver 17 play the function of generator or to play the function of vibration isolation machine.But, in the upper torsion bar 5 of this example, do not need in addition the wiring that links to each other with the outside, therefore, also can use acceleration transducer 21 to carry out computing in the inside of upper torsion bar 5.For example, in substrate 24, be provided for carrying out the IC circuit of Fourier transformation computation, be used for carrying out Fourier transformation computation for the testing signal of the acceleration transducer 21 shown in the left figure of Figure 11, in this IC circuit, carry out Fourier transformation computation, shown in the right figure among this figure, detect the frequency that becomes maximum horizontal.Then, as long as this frequency be multiply by 60, divided by the basic order of the rotation of this motor (if 4 Cylinder engines, then this basic order is 2), just can obtain engine speed again.

In addition, replace, as shown in figure 12, for the testing signal of acceleration transducer 21, also can make and implement the control area is that the signal magnitude that the bandpass filtering of 3500rpm～6000rpm obtains becomes the threshold value that makes driver 17 play the function of generator or play the function of vibration isolation machine.

As mentioned above, use in the isolation mounting at the vehicle of this example, when driver 17 non-driving, the vibrational energy of inertial mass 15 is converted to electric power to be charged in the secondary cell 26, when driver 17 drives, utilize the electric power that has been charged in the secondary cell 26 to carry out vibration isolation control, therefore, do not need from outside supply capability, can synthetically reduce power consumption.And because secondary cell 26 and driver 17 closely are arranged in the torsion bar, therefore, the voltage drop that is caused by distribution is less, also can reduce power loss thus.In addition, because control circuit 25, secondary cell 26 are arranged in the torsion bar, therefore, it also has the effect of inertial mass 15, can reduce the rigid body resonant frequency of the vehicle fore-and-aft direction of torsion bar.

Particularly, the vehicle of this example is with isolation mounting

control torsion bar

5,6 rigid body resonant frequency, it need to carry out vibration isolation control under the close operating condition of basic order in the high speed area of this frequency and motor, on the other hand, in the low rotation speed area of motor 1, it is large that the vibration that the support from motor 1 to motor transmits becomes.Thereby, in the situation that motor 1 turns round, make charge mode in low rotation speed area, make control mode in the situation about in high speed area, turning round, thereby can realize the self-sufficient of electric power.

Use in the isolation mounting at the vehicle of this example, the low rotation speed area of motor 1 preferably comprise at least charged state when idling rotation status or vehicle are motor vehicle driven by mixed power (for example in the vehicle parking process, for the battery charging and the state of running engine etc.).In the operating condition of such motor 1, the vibration that is delivered to the support of motor 1 becomes large, therefore, can increase to the charge volume of secondary cell 26.

And, preferred at least in the basic order of the rotation of motor 1 situation consistent with the axial eigentone of inertial mass 15, make charge mode.When the eigentone of the basic order of the rotation of motor 1 and inertial mass 15 was consistent, it is large, therefore large to the charging quantitative change of secondary cell 26 that the displacement of inertial mass 15 becomes, and can charge efficiently.

On the contrary, preferred at least in the resonant frequency of

torsion bar

5,6 fore-and-aft direction and situation that the basic order of the rotation of motor 1 equates, make control mode.Owing to can suppress to make the torsion bar 5 that noise worsens in the car, 6 rigidity resonance, therefore can reduce noise in the car.

And in order to charge efficiently, the as much as possible vibration with motor 1 is delivered to

torsion bar

5,6, in order to ensure the peace and quiet of vehicle, does not seek the vibration of motor 1 is delivered to vehicle.Thereby, preferably at least in charge mode, the torque axis that the rigidity that lining 12,13 rigidity are set as the torque support direction that is fixed on the lining 12 that starts pusher side is higher than the lining 13 that is fixed on car body side to rigidity.Owing to the rigidity of the lining 12 that starts pusher side is higher, therefore, the vibration of motor 1 is delivered to

torsion bar

5,6, can charge efficiently, on the other hand, because the rigidity of the lining 13 of vehicle side is lower, therefore, can intercept to the vehicle transmitting vibrations, thus the peace and quiet that can keep vehicle.

In addition, with in the isolation mounting, owing to degree of will speed up sensor 21, comprise that the control circuit 25 of band-pass filter 22 and voltage amplifier circuit 23 is installed on the substrate 24, therefore, do not need operation such as arrangement wiring grade at the vehicle of this example, can reduce cost.

In addition, shown in Fig. 6 B, for utilizing bolt 18 to be fixed with the carriage 1a of the motor 1 of lining 12, the substrate 24 of this example can be fixed on the face by motor 1 side.But as shown in Figure 6A, for the carriage 1a of motor 1, more preferably substrate 24 is fixed on the side away from a side of motor 1 with motor 1 opposition side.

Use in the isolation mounting at the vehicle of this example, as shown in figure 10, compare the rigidity of the car body side lining 12 that has reduced significantly upper torsion bar 5 with upper torsion bar in the past, therefore, for example at Ackermann steer angle, the acceleration of torsion bar self swings torsion bar significantly in the utilization on the left and right directions of vehicle.Thereby, motor 1 and the clearance C of upper torsion bar 5 need to be set to get large (with reference to Fig. 6 A, Fig. 6 B).

On the other hand, the masterpiece that is produced by unbalance inertia force is used in the center of gravity G of ratio engine 1 by the position in motor the place ahead, therefore produces moment.Thereby the vibration of the up and down displacement of the motor that the front end of motor 1 forms becomes large.Thereby, as example shown in Figure 6, be configured in the housing 20 and face away from a side of motor 1 motor 1 opposition side of upper torsion bar 5 with the allocation position of degree of will speed up sensor 21, the clearance C of upper torsion bar 5 and motor 1 can be shortened, thereby the up-down vibration of the motor 1 on the torsion bar 5 can be reduced to be delivered to.Equally, owing to can shorten the clearance C of upper torsion bar 5 and motor 1, therefore, what can reduce motor 1 side links relevant part with torsion bar, thereby can improve and the eigenvalue that links relevant part.

And, use in the isolation mounting at the vehicle of this example, upper torsion bar 5 comprises the driver 17 as thermal source, although the heat transmission to acceleration transducer 21 can become problem, but because acceleration transducer 21 can be configured in the distinguished and admirable position that blows to from vehicle front with the opposition side of motor 1, therefore, heat dispersion is also very favourable.

Above-mentioned secondary cell 26 is equivalent to electric power storage parts of the present invention and power control unit, and above-mentioned acceleration transducer 21 is equivalent to vibration detection parts of the present invention.

Description of reference numerals

1, motor; 2, subframe; 3,4, engine mounting; P1, P2, supporting point; 5, upper torsion bar; 6, lower torsion bar; 11, bar; 12,13, lining; 15, inertial mass; 17, driver; 18,19, bolt; 20, housing; 20A, opening portion; 21, acceleration transducer; 22, band-pass filter; 23, voltage amplifier circuit; 24, substrate; 25, control circuit; 26, secondary cell.

Claims

1. vehicle isolation mounting, it comprises:

Bar, the one end is fixed on the motor, and its other end is fixed on the car body;

Inertial mass, it is bearing on the above-mentioned bar;

Driver, its be used for making above-mentioned inertial mass above-mentioned bar axially on back and forth movement;

Power control unit, it is used for driving above-mentioned driver;

The electric power storage parts, it is used for to above-mentioned power control unit supply capability; Wherein,

When the non-driving of above-mentioned driver, above-mentioned power control unit is converted to electric power with the vibration of above-mentioned inertial mass and is charged in the above-mentioned electric power storage parts.

2. vehicle isolation mounting according to claim 1, wherein,

This vehicle also comprises with isolation mounting:

The vibration detection parts, its for detection of above-mentioned bar axially on vibration;

Above-mentioned vibration detection parts and above-mentioned power control unit and above-mentioned electric power storage parts together are installed on the substrate, and are installed on the above-mentioned bar.

3. vehicle isolation mounting according to claim 1, wherein,

Aforesaid substrate is configured on the part away from above-mentioned motor one side of above-mentioned bar.

4. vehicle isolation mounting according to claim 2, wherein,

This vehicle also comprises with isolation mounting:

Housing, it is used for coating an end and the other end of above-mentioned bar, above-mentioned bar, and accommodates above-mentioned inertial mass and above-mentioned driver;

Aforesaid substrate is installed in the opening portion of above-mentioned housing, with above-mentioned driver airtightly or watertight accommodate.

5. the vehicle isolation mounting described in according to claim 1, wherein,

Above-mentioned vibration detection parts are configured between the above-mentioned end and above-mentioned the other end of above-mentioned bar, and are positioned on the torque support axle and the face parallel with horizontal plane by above-mentioned bar.

6. the vehicle isolation mounting described in according to claim 1, wherein,

Be in the slow-revving situation that is lower than specified value at above-mentioned motor, above-mentioned power control unit charges to above-mentioned Reserve Power Division part, under above-mentioned motor was in high-revolving situation more than the afore mentioned rules value, the electric power that above-mentioned power control unit will fill in above-mentioned electric power storage parts supplied to above-mentioned driver.

7. vehicle isolation mounting according to claim 6, wherein,

When above-mentioned motor is engine charging state in idling rotation status or the motor vehicle driven by mixed power, in the part of above-mentioned Reserve Power Division, charge.

8. vehicle isolation mounting according to claim 6, wherein,

At least when the axial eigentone of the basic order of the rotation of above-mentioned motor and above-mentioned inertial mass is consistent, charge to above-mentioned Reserve Power Division part.

9. vehicle isolation mounting according to claim 6, wherein,

At least when the resonant frequency of the fore-and-aft direction of above-mentioned bar equated with the basic order of the rotation of above-mentioned motor, the electric power that will fill in above-mentioned electric power storage parts supplied to above-mentioned driver.

10. vehicle isolation mounting according to claim 1, wherein,

When charging to above-mentioned Reserve Power Division part, the rigidity of the torque support direction that is fixed on an above-mentioned end of starting pusher side of bar be higher than bar the other end that is fixed on above-mentioned car body side torque axis to rigidity.