阅读说明：本技术 可变阀正时控制装置 (Vario valve arrangement for controlling timing ) 是由 天野宽之 田边滋弘 岩屋崇 野口祐司 于 2019-05-15 设计创作，主要内容包括：一种可变阀正时控制装置(A),包括相位检测部(T),在得到由相位检测部(T)检测到的检测信号时驱动电磁螺线管(Va)以使卷轴(55)设定至相位控制区域(W1,W5)和锁定区域(W2,W4)中的一个的相位控制部(15),以及存储在相位控制部(15)运行相位控制时用于参照相位控制区域(W1,W5)和锁定区域(W2,W4)之间的边界的边界电流值(La,Lb)的边界存储部(16),以及通过计算得到边界电流值(La,Lb)的特性计算部(18),边界电流值(La,Lb)根据电磁螺线管(Va)的螺线管特性信息和电磁控制阀(V)的阀特性信息支持相位控制区域(W1,W5)和锁定区域(W2,W4)之间的边界,特性计算部(18)存储边界电流值(La,Lb)至边界存储部(16)。(A kind of vario valve arrangement for controlling timing (A), including phase-detection portion (T), electromagnetic solenoid (Va) is driven in the detection signal for obtaining being detected by phase-detection portion (T) so that spool (55) is set to phase control area (W1, ) and ' locked ' zone (W2 W5, W4 one phase control division (15) in), and for referring to phase control area (W1 when being stored in phase control division (15) operation phase controlling, ) and ' locked ' zone (W2 W5, bound current value (the La on the boundary between W4), Lb boundary storage unit (16)), and bound current value (La is obtained by calculation, Lb characteristic calculation part (18)), bound current value (La, Lb) according to the solenoid characteristic information and solenoid electric valve of electromagnetic solenoid (Va) (V) valve characteristic Informational support phase control area (W1,) and ' locked ' zone (W2 W5, W4 the boundary between), characteristic calculation part (18) stored boundary current value (La, Lb) to boundary storage unit (16).)

1. vario valve arrangement for controlling timing (A), comprising:

Driving side rotating member (20), crankshaft (1) synchronous rotary of the driving side rotating member (20) and internal combustion engine (E)；

By driving side rotating member (30), the rotation by driving side rotating member (30) and the driving side rotating member (20) Shaft (X) is coaxially disposed and rotates integrally with the camshaft (5) for being configured to open and close valve；

Advance angle chamber (Ca), the advance angle chamber (Ca) are formed in the driving side rotating member (20) and described are driven Between side rotating member (30)；

Angle of lag chamber (Cb), the angle of lag chamber (Cb) are formed in the driving side rotating member (20) and described are driven Between side rotating member (30)；

Locking mechanism (L), including

Lock recess (27), the lock recess (27) are formed in the driving side rotating member (20) and described by driving sidespin Turn on one in component (30)；

Biasing member (26)；And

Locking component (25), the locking component (25) are formed in the driving side rotating member (20) and described by driving sidespin Turn on another in component (30), the locking component (25) can pass through the biasing force and the lock of the biasing member (26) Recess portion (27) engagement is determined, to make the driving side rotating member (20) and the opposite rotation by driving side rotating member (30) Phase inversion position is transferred to the lock state most lagged between angular phasing and most advanced angle phase；And

Solenoid electric valve (V), solenoid electric valve (V) the control fluid are supplied to the advance angle chamber (Ca), the lag Angle chamber (Cb) and the lock recess (27) and from the advance angle chamber (Ca), the angle of lag chamber (Cb) and institute Lock recess (27) discharge is stated, wherein

The solenoid electric valve (V) includes

Spool (55), the spool (55) control the supply and discharge of the fluid, and

Electromagnetic solenoid (Va), the electromagnetic solenoid (Va) operate the volume by being in contact with the outer end of the spool (55) Axis (55) resists the biasing force of spring (56)；

The spool (55) includes working region, and the working region includes

Phase control area (W2, W4), wherein supplying the shape of the fluid to the lock recess (27) in the spool (55) In state, the spool (55) supplies the fluid to one of the advance angle chamber (20) and the angle of lag chamber (30)；With And

' locked ' zone (W1, W5), wherein in the spool (55) from the state that the lock recess (27) discharge the fluid, The spool (55) supplies the fluid to one of the advance angle chamber (20) and the angle of lag chamber (30)；

The vario valve arrangement for controlling timing (A) further include:

Phase-detection portion (T), the phase-detection portion (T) detect the relative rotation phase；

Phase control division (15), the phase control division (15) is in the detection letter for obtaining being detected by the phase-detection portion (T) Number when drive the electromagnetic solenoid (Va) so that the spool (55) setting is to the phase control area (W1, W5) and described One in ' locked ' zone (W2, W4)；And

Boundary storage unit (16), the boundary storage unit (16) are used when being stored in the phase control division (15) operation phase controlling In referring to the boundary between the phase control area (W1, W5) and the ' locked ' zone (W2, W4) bound current value (La, Lb)；And

The bound current value (La, Lb), the side is obtained by calculation in characteristic calculation part (18), the characteristic calculation part (18) Boundary's current value (La, Lb) is according to the solenoid characteristic information of the electromagnetic solenoid (Va) and the valve of the solenoid electric valve (V) Characteristic information supports the boundary between the phase control area (W1, W5) and the ' locked ' zone (W2, W4), the characteristic meter Calculation portion (18) stores the bound current value (La, Lb) to the boundary storage unit (16).

2. vario valve arrangement for controlling timing (A) as described in claim 1, wherein the bound current value (La, Lb) according to by Characteristic calculation part (18) calculated calculated result is displaced pre- by the direction for including along the phase control area (W1, W5) Quantitatively it is determined.

3. vario valve arrangement for controlling timing (A) as claimed in claim 1 or 2, wherein characteristic calculation part (18), which calculates, keeps side Boundary's current value (Ka, Kb), the holding bound current value (Ka, Kb) are supported to be suppressed the supply fluid in the spool (55) To the advance angle chamber (20) and the angle of lag chamber (30) and from the advance angle chamber (20) and the angle of lag chamber Discharge the boundary between the advance side and angle of lag side of the holding area (W3) of the fluid, the characteristic calculation part in room (30) (18) the holding bound current value (Ka, Kb) is stored and according to the calculated holding of the holding bound current value (Ka, Kb) At least one of current value (La, Lb) extremely boundary storage unit (16).

4. vario valve arrangement for controlling timing (A) as described in claim 1, wherein the solenoid characteristic information is the electromagnetism The manufacture deviation information of solenoid (Va).

5. vario valve arrangement for controlling timing (A) as described in claim 1, wherein the valve characteristic information is in addition to the electromagnetism The manufacture deviation information of the valve cell (Vb) of the solenoid electric valve (V) of solenoid (Va).

Technical field

The disclosure relates generally to a kind of vario valve arrangement for controlling timing.

Background technique

Vario valve arrangement for controlling timing disclosed in JP2016-180318A (hereinafter referred to as Patent Reference 1) includes control The solenoid valve and locking mechanism of the relative rotation phase of internal rotor and outer rotor processed.Vario valve disclosed in Patent Reference 1 Arrangement for controlling timing knows the boundary between the ' locked ' zone of the working region of the spool of phase control area and solenoid valve, and Known based on this and is controlled.

That is, vario valve arrangement for controlling timing disclosed in Patent Reference 1 includes detection relative rotation phase Sensor portion change supply to electromagnetism and in the case where knowing the boundary between phase control area and ' locked ' zone Solenoidal electric current, and current value is stored as demarcation current value, in relative rotation phase in supply to electromagnetic solenoid In the case where changing during curent change (time point when locking mechanism is transferred to lock state).

According to vario valve arrangement for controlling timing disclosed in Patent Reference 1, solenoid valve is configured so that spool accommodates In the main body of vario valve arrangement for controlling timing, and the electromagnetic solenoid for making spool work is set to vario valve timing control dress The outside for the main body set.In view of the performance difference of spool (the working oil control unit including spool) and electromagnetic solenoid, patent Know that the technology of demarcation current is effective disclosed in documents 1.

Known according to disclosed in Patent Reference 1, since vario valve arrangement for controlling timing is unlocked in locking mechanism State in by calculate supply scheduled current determine whether locking mechanism is transferred to locking to the program of electromagnetic solenoid, locking Determine in the case that mechanism determines and be transferred to lock state, can change that supply current value to electromagnetic solenoid same to repeat The program of sample.

In the case of vario valve arrangement for controlling timing repeats same program when knowing, knows and need to expend the time, In Such as vario valve arrangement for controlling timing vehicle engine (internal combustion engine) work state in know in the case where, due to starting The unstable rotation of machine may cause user and feel uncomfortable.

As knowing that each vario valve arrangement for controlling timing for needing to know according to disclosed in Patent Reference 1 expends Working hour, the problem of causing to expend the time and the production cost increases.

Therefore, a kind of vario valve arrangement for controlling timing including control valve is needed, control valve, which has, passes through electromagnetic solenoid The spool of operation and the boundary being easy between setting phase control area and ' locked ' zone.

Summary of the invention

According to the one side of the disclosure, vario valve arrangement for controlling timing includes the driving with the rotation of the crankshaft-synchronous of internal combustion engine Side rotating member, with the setting of the concentric rotation axis of driving side rotating member and be configured to open and close the camshaft one of valve Body rotation by driving side rotating member, be formed in driving side rotating member and by the advance angle chamber between driving side rotating member Room is formed in driving side rotating member and by the angle of lag chamber between driving side rotating member, including lock recess, bias structure The locking mechanism of part and locking component, lock recess are formed in driving side rotating member and by one in driving side rotating member On a, locking component is formed in driving side rotating member and by another in driving side rotating member, and locking component can lead to The biasing force of overbias component is engaged with lock recess to make driving side rotating member and by the opposite of driving side rotating member Rotatable phase is transferred to the lock state most lagged between angular phasing and most advanced angle phase, and vario valve arrangement for controlling timing further includes Control fluid supply to advance angle chamber, angle of lag chamber and lock recess and from advance angle chamber, angle of lag chamber and The solenoid electric valve of lock recess discharge.Solenoid electric valve include control fluid supply and discharge spool, by with spool Outer end be in contact operate spool resist spring biasing force electromagnetic solenoid.Spool includes working region, the working region Including phase control area and ' locked ' zone, in phase control area, in state of the spool supply fluid to lock recess, volume Axis supplies fluid to one of advance angle chamber and angle of lag chamber, in ' locked ' zone, in spool from lock recess exhaust fluid In state, spool supplies fluid to one of advance angle chamber and angle of lag chamber.Vario valve arrangement for controlling timing further includes detection The phase-detection portion of relative rotation phase, in the detection signal for obtaining being detected by phase-detection portion drive electromagnetic solenoid with So that spool is set one phase control division into phase control area and ' locked ' zone, is stored in phase control division operation phase Boundary storage unit when the control of position for the bound current value referring to the boundary between phase control area and ' locked ' zone, and The characteristic calculation part of bound current value is obtained by calculation, the bound current value is according to the solenoid characteristic information of electromagnetic solenoid Boundary between the valve characteristic Informational support phase control area and ' locked ' zone of solenoid electric valve, characteristic calculation part store side Boundary's current value is to boundary storage unit.

According to previous constructions, according to the valve characteristic information of the solenoid characteristic information of electromagnetic solenoid and solenoid electric valve, Characteristic calculation part calculates the bound current value for supporting the boundary between phase control area and ' locked ' zone, and stored boundary electricity Flow valuve is to boundary storage unit.That is, solenoid characteristic information and valve characteristic information are different in production, by simply tying Solenoid characteristic information and valve characteristic information are closed come in the case where producing solenoid electric valve, electricity of the spool relative to drive magnetic valve The transportation load of stream can be different from aforementioned assumed value.On the other hand, pass through due to bound current value when combining each characteristic information It is calculated, does not need to know that reasonable bound current value can be obtained in any combination of process by supporting.Boundary storage unit is deposited Store up bound current value, and by the case where run phase controlling reference be stored in bound current in the storage unit of boundary Value, the current value of setting supply to electromagnetic solenoid, which is avoided that, causes false-lock.Correspondingly, vario valve arrangement for controlling timing passes through packet Include the boundary that can be easily set between phase control area and ' locked ' zone by the control valve of the spool of electromagnetic solenoid operation.

According to another aspect of the present disclosure, bound current value passes through edge according to by the calculated calculated result of characteristic calculation part The direction displacement predetermined amount for including in phase control area is designated.

Displacement is passed through according to the actual boundary between phase control area and ' locked ' zone accordingly, due to bound current value It is designated to phase control area, solves the inconvenience for causing false-lock state when carrying out phase controlling.

According to the another further aspect of the disclosure, characteristic calculation part calculating is suppressed in spool to advance angle chamber and angle of lag chamber Room supplies fluid and from advance angle chamber and angle of lag chamber exhaust fluid when supports the advance side and angle of lag of holding area The holding bound current value on the boundary between side, the storage of characteristic calculation part keep bound current value and according to holding bound current values At least one of holding current value of calculating is to boundary storage unit.

According to previous constructions, the setting of characteristic calculation part keeps bound current value or setting fluid not to supply to advance angle chamber With angle of lag chamber also stopping is not controlled reliably from advance angle chamber and the discharge of angle of lag chamber to stop relative rotation The holding current value on the boundary between the advance side and angle of lag side of the support holding area of relative rotation phase.

According to another aspect of the present disclosure, solenoid characteristic information is the manufacture deviation information of electromagnetic solenoid.

According to the another further aspect of the disclosure, valve characteristic information is the valve cell of the solenoid electric valve in addition to electromagnetic solenoid Manufacture deviation information.

Detailed description of the invention

Referring to attached drawing, from following detailed description, the aforementioned and other feature and characteristic of the disclosure will be become apparent from, in which:

Fig. 1 is the cross-sectional view according to the vario valve arrangement for controlling timing of embodiment disclosed herein；

Fig. 2 is the cross-sectional view of the line II-II along Fig. 1；

The table of Fig. 3 summarizes the relationship between the region of setting spool and the supply and discharge of working oil；

Fig. 4 is the cross-sectional view of the valve cell with the spool for being set to the first ' locked ' zone；

Fig. 5 be with spool be in advance angular zone valve cell cross-sectional view；

Fig. 6 be with spool be in holding area valve cell cross-sectional view；

Fig. 7 be with spool be in lag angular zone valve cell cross-sectional view；

Fig. 8 is the cross-sectional view of the valve cell with the spool for being located at the second ' locked ' zone；

Fig. 9 is the decomposition diagram of valve cell；

Figure 10 is the circuit block diagram of control circuit；

Figure 11 is the flow chart of calculation procedure；

The graph plots of Figure 12 solenoid electromagnetic property；

The load characteristic of the graph plots of Figure 13 relative to the valve of stroke；

The characteristic calculation processing of the graph plots of Figure 14；And

Stroke characteristic of the graph plots of Figure 15 relative to electric current.

Specific embodiment

Embodiment of the disclosure is introduced below with reference to accompanying drawings.

As depicted in figs. 1 and 2, vario valve arrangement for controlling timing A includes outer rotor 20, the work as driving side rotating member For the solenoid electric valve V by the internal rotor 30 of driving side rotating member and for controlling the working oil as fluid.Such as Figure 10 Shown, vario valve arrangement for controlling timing A includes phase control unit B, target of the phase control unit B in relative rotation phase Relative rotation phase is made by controlling solenoid electric valve V according to the detection signal detected by phase-detection portion T when phase is determined Position is set as the phase as target.

The vario valve arrangement for controlling timing A of the present embodiment and the rotary shaft X of admission cam shaft 5 (that is, as camshaft) are same Axis is to be arranged the opening and close timing of the admission cam shaft 5 of the engine E (example of internal combustion engine) of automobile or the like.

Internal rotor 30 (by the example of driving side rotating member) and the rotary shaft X of admission cam shaft 5 are coaxially disposed, and By connecting and can be rotated integrally with admission cam shaft 5 with admission cam shaft 5 by connection bolt 40.(the driving sidespin of outer rotor 20 Turn the example of component) accommodate internal rotor 30 and by being coaxially disposed and synchronous with the crankshaft 1 of engine E can revolve with rotary shaft X Turn.In this configuration, outer rotor 20 and internal rotor 30 can be rotated relatively to each other.

Vario valve arrangement for controlling timing A includes that the relative rotation phase of outer rotor 20 and internal rotor 30 is kept to be in such as Fig. 2 Shown in intermediate locking phase M locking mechanism L.The relative rotation phase of outer rotor 20 and internal rotor 30 starts suitable for starting The time point of the open and close valve of machine E is in intermediate locking phase M, and is shifted when engine E will be stopped by control by control.In Between locking phase M correspond to the phase most lagged between angular phasing and most advanced angle phase, be not limited in particular phases, wherein Most lag angular phasing is the mechanical retention on lag angular direction Sb as shown in Figure 2, and most advanced angle phase is angular direction in advance Mechanical retention on Sa.

The valve cell Vb that solenoid electric valve V is provided with electromagnetic solenoid Va and is supported by engine E.Valve cell Vb includes Connection bolt 40 and the spool 55 being contained in the inner space 40R of connection bolt 40.

Electromagnetic solenoid Va includes solenoid part 50 and the plunger 51 that extends and retracts relative to solenoid part 50.Valve cell The spool 55 and rotary shaft X that Vb includes are coaxially disposed and control the supply and discharge of working oil (example of fluid).Position Relationship is arranged so that the jag of plunger 51 is in contact with the outer end of spool 55.

Solenoid electric valve V supplies the electric current to solenoid part 50 the overhang of plunger 51 is arranged, with running by control Spool 55.By the running of spool 55, the flowing of working oil is controlled to the opening and close timing of setting intake valve 53, locking mechanism L Can be transferred to locking and it is non-locking.

As shown in Figure 1, engine E accommodates piston 3 in the cylinder barrel for the cylinder body 2 that the upper position of engine E is arranged, and And four stroke type are configured to, piston 3 and crankshaft 1 are connected by connecting rod 4.The top of engine E be provided be configured to be opened and closed into The admission cam shaft 5 and exhaust cam shaft of air valve 5V.

Support admission cam shaft 5 is provided with supply channel 8 at component 10 so as to the cluster engine that can be rotated with it, the supply Runner 8 supplies working oil from the oil pressure pump P driven by engine E.By supply channel 8, oil pressure pump P is supplied in engine E Oil sump 9 in the lubricating oil accumulated to valve cell Vb, the lubricating oil is as working oil (example of fluid).

Timing chain 7 is wound on the timing sprocket 21S of the output chain gear 6 and outer rotor 20 that are arranged at the crankshaft 1 of engine E On.In this way, outer rotor 20 and crankshaft 1 rotate synchronously.Sprocket wheel is also provided at the front end of exhaust cam shaft, and is wound with timing chain 7。

As shown in Fig. 2, outer rotor 20 is along driving direction of rotation S rotation by the driving force transmitted from crankshaft 1.Internal rotor 30 relative to outer rotor 20 using the relative rotation direction that is rotated with the identical direction driving direction of rotation S as shifting to an earlier date angular direction Sa, opposite direction is as lag angular direction Sb.The pass between crankshaft 1 and admission cam shaft 5 is arranged in vario valve arrangement for controlling timing A System improves air inlet compression ratio to respond the increase along the displacement for the relative rotation phase for shifting to an earlier date angular direction Sa, and rings Air inlet compression ratio should be reduced along the increase of the displacement of the relative rotation phase of lag angular direction Sb.

Disclose that vario valve arrangement for controlling timing A is set at admission cam shaft 5 in the present embodiment.Alternatively, Vario valve arrangement for controlling timing A may also set up at exhaust cam shaft, or may also set up in admission cam shaft 5 and exhaust cam Both axis place.

Outer rotor 20 and internal rotor 30 described below.As shown in Figure 1, outer rotor 20 includes outer rotor main body 21, foreboard 22 and back plate 23, these parts be formed as one by multiple fixing for fastening bolt 24.Timing sprocket 21S is set to outer turn At the periphery of sub- main body 21.

As shown in Fig. 2, being set to outer rotor main body 21 towards inside a plurality of protruding portion 21T outstanding in radial directions On.Internal rotor 30 includes being formed as cylindrical internal rotor main body 31, the protrusion of the internal rotor main body 31 and outer rotor main body 21 Portion 21T is in close contact, and internal rotor 30 further include from the periphery of internal rotor main body 31 on outer pleurapophysis in radial direction towards Plurality of vanes portion 32 out, to be in contact with the inner peripheral surface of outer rotor main body 21.

Outer rotor 20 accommodates internal rotor 30 as a result, and a plurality of fluid pressure chamber C protrusion adjacent to each other in a rotational direction The middle position of portion 21T is formed at the periphery of internal rotor main body 31.Fluid pressure chamber C is separated by blade part 32, thus boundary Make advance angle cavity C a and angle of lag cavity C b.In addition, internal rotor main body 31 is provided with and is respectively connected to advance angle cavity C a Advance angle runner 33 and the angle of lag runner 34 being respectively connected to angle of lag cavity C b.

As depicted in figs. 1 and 2, locking mechanism L include locking component 25, Lock spring 26 (that is, as biasing member) with And lock recess 27, locking component 25 are supported to radially stretch out and contract relative to the protruding portion 21T of outer rotor 20 It returns, for bias locking component 25 so that locking component 25 is prominent, lock recess 27 is set to internal rotor main body to Lock spring 26 respectively At 31 periphery.Internal rotor main body 31 is provided with locking control runner 35, and each locking control runner 35 and lock recess 27 connect It is logical.

Locking mechanism L is recessed by two locking components 25 and locking in the state of the biasing force support by Lock spring 26 Engagement is held in relative rotation phase in intermediate locking phase M while portion 27.In lock state, working oil is supplied to lock Surely runner 35 is controlled, so that locking component 25 is discharged from lock recess 27 respectively, the biasing force of Lock spring 26 is resisted, locks machine Structure L is unlocked.On the other hand, working oil is discharged from locking control runner 35, so that locking component 25 passes through Lock spring 26 Biasing force is engaged with lock recess 27 respectively, and locking mechanism L is locked.

Alternatively, locking mechanism L may be arranged so that single locking mechanism 25 connects with corresponding single lock recess 27 It closes.Also, locking mechanism L can be guided so that locking mechanism 25 is moved along rotary shaft X.

Connection bolt 40 described below.As shown in Fig. 1, Fig. 4 and Fig. 9, connection bolt 40 includes being integrally formed into cylinder Bolt body 41 and the bolt head 42 that is set at the outer end (left side in Fig. 4) of bolt body 41.Along rotary shaft X Direction on perforative inner space 40R be located in connection bolt 40, and external thread part 41S is set to the interior of bolt body 41 At the periphery of end (the right in Fig. 4).

As shown in Figure 1, admission cam shaft 5 has the axis inner space 5R around rotary shaft X, at the inner circumferential of axis inner space 5R It is formed with internal thread part 5S.Axis inner space 5R is connected to supply channel 8 and is supplied with working oil from oil pressure pump P.

In this configuration, bolt body 41 is set in internal rotor 30, and outer screw section 41S is screw-coupled to admission cam shaft 5 On female threaded portion 5S, and internal rotor 30 is installed by the rotation process of bolt head 42 to admission cam shaft 5.It is solid by this It is fixed, the installation of internal rotor 30 to admission cam shaft 5, inner space 40R (the especially fluid of axis inner space 5R and connection bolt 40 The inner space of supply pipe 54) it communicates with each other.

The interior end side (the right in Fig. 4) of the inner peripheral surface of the inner space 40R of bolt 40 is connected in the side along rotary shaft X To with limiting wall 44, limiting wall 44 is stretched out along towards the direction of rotary shaft X.As shown in figures 4 and 9, be formed as answering for flute profile Several (four) drain flow path Da are set to the region of the distal end from middle position to from the inner circumferential for connecting bolt 40, to be in edge The posture of rotary shaft X, also, a plurality of (four) the discharge orifice Db extended radially through are set to the interior end side of connection bolt 40.

Valve cell Vb described below.As shown in Fig. 1, Fig. 4 and Fig. 9, valve cell Vb includes connection bolt 40, is packed into bolt The inner peripheral surface of main body 41 is contained in the 40R of inner space at the sleeve 53 of close contact state so as to coaxial with rotary shaft X Fluid supply line 54, and in the direction along rotary shaft X in the pipeline by the inner peripheral surface of sleeve 53 and fluid supply line 54 The spool 55 being mounted slidably in the state of the peripheral surface guidance of portion 54T.

Valve cell Vb includes along the spool spring 56 (that is, as spring), check-valves CV, filter for stretching out direction biased reel 55 Oily device F and fixed ring 61.

As shown in figure 9, check-valves CV includes open plate 57 and valve plate 58, respectively it is made of the metal plate with same outer diameter. Plurality of openings portion 57a runs through open plate 57 at the annular region around rotary shaft X.Valve plate 58 includes annular valve 58a, annular Valve portion 58a is configured to close the opening portion 57a of open plate 57 when stress level reduces.

Valve plate 58 is made of spring material, and is separated by the opening portion 57a when supplying working oil with open plate 57 Valve portion 58a supply working oil.It is reduced in the stress level of the working oil of the upstream of check-valves CV lower than its pressure downstream In the case where level, the opening portion 57a of open plate 57 is closed in the state being overlapped by the valve portion 58a of valve plate 58 to inhibit work Oily adverse current.

Oil filter F includes filter element 59, which has identical with the outer diameter of open plate 57 and valve plate 58 Outer diameter further includes the supporting member 60 for supporting filter element 59.

In this configuration, valve cell Vb is assembled so that filter element 59, supporting member 60, open plate 57 and valve plate 58 are inserted into the inner space 40R of connection bolt 40, so that fluid supply line 54, sleeve 53, spool spring 56 and volume Axis 55 is inserted into the 40R of inner space, and fixed ring 61 is compatibly installed to the outer end for connecting bolt 40.

The valve cell Vb assembled as described above is configured so as to be connected to mentioning for advance angle cavity C a by advance angle runner 33 Anterior angle port PA, runner is controlled by the angle of lag port PB of the connection of angle of lag runner 34 angle of lag cavity C b and by locking The latched port PL of 35 connection lock recess 27 is as the through-hole for radially passing through sleeve 53 from bolt body 41.

Advance angle port PA respectively includes the advance angle through-hole 41a being set at bolt body 41 and is set at sleeve 53 Advance angle opening 53a.Angle of lag port PB respectively has the angle of lag through-hole 41b being set at bolt body 41 and is set to sleeve Angle of lag opening 53b at 53.Latched port PL respectively includes the locking through-hole 41c being set at bolt body 41 and is set to set Locking opening 53c at cylinder 53.

Discharge working oil to bolt body 41 outer edge side (left side in Fig. 4) a plurality of (such as four) drain flow paths Da is set at the inner circumferential of bolt body 41.A plurality of discharge orifice Db are worn in the inner edge side (the right in Fig. 4) of bolt body 41 Thoroughly.

Drain flow path Da, which is used as, discharges work from latched port PL in the case where spool 55 is located at the first ' locked ' zone W1 The locking drain flow path of oil, and discharged as in the case where spool 55 is located at the second ' locked ' zone W5 from advance angle port PA The phase controlling drain flow path of working oil.Discharge orifice Db, which is used as, is located at the first ' locked ' zone W1 and in advance angular zone W2 in spool 55 In the case where from angle of lag port PB discharge working oil phase controlling drain flow path.The flowing of working oil corresponds to 55 quilt of spool The region for determining or setting.

The sleeve 53 of valve cell Vb described below.As shown in Fig. 1, Fig. 4 and Fig. 9, sleeve 53 includes end wall 53W, should End wall 53W is formed as the cylinder around rotary shaft X, and is curved to for example, by inner edge side (the right in Fig. 4) Drawing method it is orthogonal with rotary shaft X.

Sleeve 53 includes a plurality of (such as four) advance angles opening 53a, a plurality of (such as four) angle of lags opening 53b And a plurality of (such as four) lock opening 53c.Moreover, a plurality of (such as four) the first exhaust openings 53d are located at sleeve 53 middle part, a plurality of (such as four) the second exhaust openings 53e are located at the inner edge portion of sleeve 53.

Four portions of advance angle opening 53a, angle of lag opening 53b and locking opening 53c in the circumferential direction around rotary shaft X Divide and is arranged one by one on the direction along rotary shaft X.First exhaust openings 53d and the second exhaust openings 53e is along rotation Four parts are arranged on the direction of shaft X one by one to be arranged one by one, so that its phase angle and advance angle The phase angle of opening 53a, angle of lag opening 53b and locking opening 53c are different.

As shown in figure 9, a pair of engaging protruding portion 53T is set to the outer fringe position of sleeve 53, and be set to bolt master The opening portion of body 41 is to keep the coupling recess of sleeve 53 to engage, to not rotate with bolt body 41.

In this way, since sleeve 53 is not held in bolt body 41 rotatably, as shown in figure 4, advance angle opening 53a, lag Angle opening 53b and locking opening 53 are held in connection support advance angle opening 53a, angle of lag opening 53b and locking respectively It is open in advance angle intercommunicating pore 41a, the angle of lag intercommunicating pore 41b of 53c and the state of locking intercommunicating pore 41c.First row is decontroled Mouth 53d and drain flow path Da communicates with each other to establish locking drain flow path, and the second exhaust openings 53e and discharge orifice Db are each other Connection is to establish phase controlling drain flow path.Correspondingly, advance angle port PA, angle of lag port PB and latched port are provided with PL.In particular, as shown in Figure 1, discharge orifice Db connection is set to the discharge through-hole 5d of admission cam shaft 5.

The fluid supply line 54 of valve cell Vb described below.As shown in figures 4 and 9, fluid supply line 54 includes insertion Base end part 54S and diameter in the 40R of inner space are less than the duct portion 54T, base end part 54S and duct portion 54T mono- of base end part 54S Formed to body.A plurality of first supply opening 54a are disposed in proximity to the position of base end part 54S, in the distal portion of duct portion 54T At periphery, and a plurality of second supply opening 54b are located at the outside of a plurality of first supply opening 54a.

A plurality of first supply opening 54a are respectively formed as in the circumferential with wide width and along the length of rotary shaft X extension Hole.Four intermediate hole portion 55c are set at spool 55 position corresponding with the first supply opening 54a, are respectively formed as round.At this In construction, the working oil transmitted from duct portion 54T is securely fed to intermediate hole portion 55c.

Second supply opening 54b is respectively formed as generally quadrangle, and a plurality of end side hole portion 55d are respectively formed as round Shape, end side hole portion 55d are set on spool 55 position corresponding with the second supply opening 54d.In this configuration, working oil is reliable Ground is supplied from duct portion 54T to end side hole portion 55d.

The spool spring 56 of spool 55 and valve cell Vb described below.As shown in figures 4 and 9, spool 55 includes being formed For cylinder and outer end side have contact surface reel body 55a and be set to reel body 55a periphery at four A grounding parts 55b.Inner flow passage is set in spool 55, and a plurality of intermediate hole portion 55c for being connected to inner flow passage are set to along rotation Shaft X is in the middle position for above-mentioned a pair of of grounding parts 55b that interior end side is arranged (i.e. during intermediate hole portion 55c is clipped in by grounding parts 55b Between).The end side hole portion 55d of connection inner flow passage is set in the above-mentioned docking being arranged along the direction end side Shang Wai of rotary shaft X The middle position of ground portion 55b (end side hole portion 55d is clipped in the middle by grounding parts 55b).

Spool spring 56 is compression helical spring and the end for being set to the grounding parts 55b and sleeve 53 in the setting of interior end side Between portion wall 53W.

The working method of vario valve arrangement for controlling timing A described below.According to vario valve arrangement for controlling timing A, do not having Have and the solenoid part 50 of electromagnetic solenoid Va is supplied in the state of electric current, plunger 51 does not apply pressure, such as Fig. 4 to spool 55 Shown, spool 55 is held in biasing force and fixation of the grounding parts 55b being arranged on the outside of spool spring 56 by spool spring 56 The position that ring 61 is in contact.

The position of spool 55 as shown in Figure 4 corresponds to the outer end position of the first ' locked ' zone W1.As shown in figure 3, passing through It supplies to the increase of the current value of solenoid part 50, according to the first ' locked ' zone W1, spool 55 can be in order in angular zone in advance W2, holding area W3, lag angular zone W4 and the second ' locked ' zone W5 in run.That is, passing through setting supply to electricity The current value of the solenoid part 50 of magnetic solenoid Va, a region in five regions are set.

In the state for not supplying electric current to solenoid part 50, spool 55 is held in the first ' locked ' zone as shown in Figure 4 The outer end position of W1.As shown in figure 8, the current value of supply to solenoid part 50 is maximized so that spool 55 is set in second The outer end of ' locked ' zone W5.

Angular zone W2 in advance and lag angular zone W4 in plurality of regions correspond to phase control area, and first locks Region W1 and the second ' locked ' zone W5 corresponds to ' locked ' zone.

In valve cell Vb, it is set in spool 55 any among first ' locked ' zone W1 or second ' locked ' zone W5 the two In the case where, locking mechanism L can be transferred to lock state at the time point for reaching intermediate locking phase M when relative rotation phase.

Working method in first ' locked ' zone described below.The case where spool 55 is set in the first ' locked ' zone W1 Under, as shown in figure 4, the working oil come from oil pressure pump P transmission by intermediate hole portion 55c, the advance angle port PA of spool 55 and Advance angle runner 33 is supplied to advance angle cavity C a.Meanwhile it being sent to from the working oil that angle of lag cavity C b transmission comes stagnant Relief angle runner 34, angle of lag port PB, the second exhaust openings 53e and discharge orifice Db and be discharged into outside.

In the first ' locked ' zone W1, the working oil in lock recess 27 is sent to locking control runner 35, keyed end Mouthful PL, the first exhaust openings 53d and drain flow path Da and it is discharged into outside.

Correspondingly, relative rotation phase along shift to an earlier date angular direction Sa displacement, and by reach intermediate locking phase M when Between put lock recess 27 and locking component 25 engagement be transferred to lock state.Relative rotation phase is being in the lock state It is maintained in state in intermediate locking phase M.

Working method in angular zone W2 in advance described below.The case where spool 55 is set in angular zone W2 in advance Under, as shown in figure 5, the working oil come from oil pressure pump P transmission by intermediate hole portion 55c, the advance angle port PA of spool 55 and The case where advance angle runner 33 is supplied to advance angle cavity C a, is set just as the first ' locked ' zone W1.Meanwhile from angle of lag The working oil that cavity C b transmission comes is sent to angle of lag runner 34, angle of lag port PB, the second exhaust openings 53e and discharge Hole Db and from discharge through-hole 5d be discharged into outside.

In angular zone W2 in advance, the working oil come from oil pressure pump P transmission passes through the end side hole portion of spool 55, latched port PL and locking control runner 35 are supplied to lock recess 27.Correspondingly, locking component 25 from lock recess 27 retract so that It obtains locking mechanism L and is located at unlocked state, so that relative rotation phase is displaced along angular direction Sa is shifted to an earlier date.

Working method described below when spool 55 is located in holding area W3.Holding area is set in spool 55 In the case where in W3, as shown in fig. 6, advance angle port PA and angle of lag port PB is closed by the grounding parts 55b of spool 55, work Making oil will not supply to advance angle cavity C a and angle of lag cavity C b.In holding area W3, the work next from oil pressure pump P transmission Oil is supplied to lock recess 27 by end side hole portion 55d, the latched port PL and locking control runner 35 of spool 55, locks Component 25 retracts to be maintained in unlocked state from lock recess 27.

Correspondingly, in holding area W3, relative rotation phase will not be displaced, and be remained unchanged.

Working method described below when spool 55 is located in lag angular zone W4.Angle of lag is set in spool 55 In the case where the W4 of region, as shown in fig. 7, passing through intermediate hole portion 55c, the lag of spool 55 from the working oil that oil pressure pump P transmission comes Angle port PB and angle of lag runner 34 are supplied to angle of lag cavity C b.Meanwhile the work come from advance angle cavity C a transmission Oil is sent to advance angle runner 33, advance angle port PA, the first exhaust openings 53d and discharge orifice Da, and is discharged into Outside.

In lag angular zone W4, the working oil come from oil pressure pump P transmission passes through the end side hole portion 55d of spool 55, locking Port PL and locking control runner 35 are supplied to lock recess 27.Correspondingly, locking component 25 is retracted from lock recess 27 So that locking mechanism L is located in unlocked state, so that relative rotation phase is along lag angular direction Sb displacement.

Working method described below when spool 55 is located in the second ' locked ' zone W5.Second is set in spool 55 In the case where ' locked ' zone W5, as shown in figure 8, the working oil come from oil pressure pump P transmission by the intermediate hole portion 55c of spool 55, Angle of lag port PB and angle of lag runner 34 are supplied to angle of lag cavity C b.Meanwhile coming from advance angle cavity C a transmission Working oil is sent to advance angle runner 33, advance angle port PA, the first exhaust openings 53d and discharge orifice Da, and is arranged It is put into outside.

In the second ' locked ' zone W5, the working oil come from the transmission of lock recess 27 passes through locking control runner 35 and locking Port PL is sent to the inner space of sleeve 53, and passes through admittedly in working oil from the outer end (left end in Fig. 8) of spool 53 Determine to be discharged into outside in the state of the inner circumferential of ring 61.

Correspondingly, relative rotation phase is along lag angular direction Sb displacement, and reaches intermediate locking in relative rotation phase The time point of phase M, locking component 25 engage to be transferred in lock state with lock recess 27.Lock is in locking component 27 In the case where determining in state, relative rotation phase is held in intermediate locking phase M.

The structure of advance angle port and angle of lag port described below.As previously mentioned, being set in the first lock in spool 55 Determine it is any among region W1 or second ' locked ' zone W5 the two in the case where, locking mechanism L can work as relative rotation phase position The time point that shifting reaches intermediate locking phase M reaches lock state.

Phase control unit B described below.As shown in Figure 10, phase control unit B includes phase control division 15, boundary Storage unit 16, output section pulsewidth modulation (PWM) 17 and characteristic calculation part 18.The output section PWM 17 supplies electric current to electric solenoid Pipe Va.

In this configuration, it is assumed that phase control division 15 and characteristic calculation part 18 pass through software configuration, still, characteristic calculation part 18 a part can be by hardware configuration, such as passes through logic circuit configuration.Boundary storage unit 16 is by software and including non-easy The combination configuration of the hardware of the property lost memory.The output section PWM 17 includes, for example, the switch element of electric current of the control from power supply. Electric current from power supply is turned on and off by switch element etc. in the regular period, and current value can be set by PWM, and PWM is set The periodically indirect alive time.

Carry out the signal input phase control of the phase-detection portion T of the relative rotation phase of self-test outer rotor 20 and internal rotor 30 Unit B processed.Phase-detection portion T be assumed to according to by detection crankshaft 1 rotation angle crankshaft sensor and by detect into The signal that the camshaft-signal sensor of the rotation angle of gas camshaft 5 obtains calculates the part of relative rotation phase.Alternatively, The sensor special of detection relative rotation phase can be used.

In the case where target phase is set, phase control unit B supplies electric current to electromagnetic solenoid Va, so as in root It provides in state of the detection signal of phase-detection portion T as feedback and controls according to such as PID control parameter or PID control The operating position target position of angular zone W2 (e.g., including in advance) of spool 55, to make target phase and by phase-detection Deviation between the actual phase (relative rotation phase) that portion T is detected minimizes.

Such phase control is to set the spool 55 of solenoid electric valve V in angular zone W2 in advance and lag angular zone W4.But It is, for example, spool 55 is set as making relative rotation phase high-speed displacement close to the first ' locked ' zone W1 and the second ' locked ' zone W5 In the case where (increase the opening of advance angle port PA or angle of lag port PB), spool 55 can accidentally enter the first lock room Domain W1 and the second ' locked ' zone W5.In order not to make spool 55 accidentally enter ' locked ' zone, when carrying out phase controlling, it is related to protecting The bound current value (the first bound current value La and the second boundary current value Lb) and holding electric current being stored in boundary storage unit 16 Value (first keeps bound current value Ka and second to keep bound current value Kb).

Calculating described below in phase control unit.In vario valve arrangement for controlling timing A, obtaining passing through electromagnetism In the case where the rational behavior of control valve V design, the operation of the current value relative to supply to electromagnetic solenoid Va of spool 55 Amount can be scheduled reasonable value.

But because solenoid electric valve V is combined by electromagnetic solenoid Va and valve cell Vb, supply to electromagnetic solenoid Va Current value and spool 55 running position between relationship can be due to the deviation of the characteristic of electromagnetic solenoid Va and valve cell Vb Without in design position.

As a result, in above-mentioned relation not in the case where design position, as the first ' locked ' zone W1 and in advance angular zone W2 Between boundary the first bound current value La and as the of the boundary between lag angular zone W4 and the second ' locked ' zone W5 Two bound current value Lb may not set suitably.

Similarly, as shown in figure 3, keeping boundary electricity corresponding to first of the boundary between the advance side of holding area W3 The flow valuve Ka example of current value (keep) and bound current value is kept corresponding to second of the boundary between the lag side angular zone W4 Kb (example for keeping current value) is not specified.

In order to specify these bound current values, when engine E is driven, each bound current value can be by knowing for example Measure the operation of the position, the measurement supply amount and discharge amount of working oil and determining locking mechanism L at spool 55 of spool 55 To set.But know that process will expend the time, and need for sensor special to be attached to vehicle, boundary electricity is set as a result, Flow valuve knows that the technology of process is preferred without running.

Thus reason, in vario valve arrangement for controlling timing A, when the flow chart in solenoid electric valve V such as Figure 11 is assembled When, characteristic calculation part 18 runs calculation procedure.

That is, the solenoid characteristic information of electromagnetic solenoid Va is applied to each electromagnetic solenoid Va in production. Similarly, the valve characteristic information of valve cell Vb is applied to each valve cell Vb in production.

As the particular example of characteristic information, Figure 12 description shows the solenoid electromagnetic property of electromagnetic solenoid Va.In In the curve graph of Figure 12, the longitudinal axis corresponds to load (being that unit indicates with newton (N)) and horizontal axis corresponds to the stroke of spool 55 (being that unit indicates with mm (millimeter)).A plurality of curve graph Ia, Ib, Ic, Id shown in Figure 12 are illustrated in different current values Relationship of electric current when supplying to electromagnetic solenoid Va between power and stroke.

Solenoid electromagnetic property is to pass through special measurement device at the time point when the production process of electromagnetic solenoid is completed The value of measurement.The particular value of a plurality of curve graph Ia, Ib, Ic, Id shown in Figure 12 be such as 1.2A, 1.0A, 0.8A and 0.6A。

As the particular example of characteristic information, Figure 13 description shows the load characteristic relative to stroke of valve.In Figure 13 Curve graph in, the longitudinal axis corresponds to power (newton), and horizontal axis corresponds to the stroke (mm) of spool 55, and Figure 13 shows valve Load characteristic relative to stroke S-F.

The time point that the load characteristic relative to stroke of valve corresponds in the production completion of electromagnetic solenoid passes through special The value measured with measuring device.

Characteristic information comes as the data of the number in relation to for example applying individually to electromagnetic solenoid Va and valve cell Vb Management, or apply individually to electromagnetic solenoid Va and valve cell Vb and believe as the characteristic of the production line of engine E to be sent to The QR code (registered trademark) of the two dimensional code of breath.

As flowchart shown in fig. 11, in production line, the solenoid electricity of (step S01, S02) electromagnetic solenoid Va is obtained The load characteristic of the stroke relative to valve cell Vb of magnetic characteristic and valve, electromagnetic solenoid Va and the valve being assembled in engine E Unit Vb.

Solenoid electromagnetic property and the load characteristic relative to stroke of valve are getable, to can be obtained by network According to the correspondence characteristic information of such as number of electromagnetic solenoid Va and valve cell Vb, or it is attached to electromagnetic solenoid Va and valve The QR code of unit Vb can be scanned by code reader.

Then, as shown in figure 15 the stroke characteristic in relation to electric current (I-S) according to solenoid electromagnetic property and valve relative to The load characteristic of stroke is calculated by process shown in Figure 14 and obtains (step S03).

Characteristic operational process as shown in figure 14 describes the visualization of a part of the operation in step S03.In the mistake The load characteristic relative to stroke of Cheng Zhong, Said solenoid electromagnetic property and valve is bonded to each other, and current value is according to the opposite of valve It is determined in point that the curve graph of the load characteristic of stroke (S-F) and a plurality of curve graph Ia, Ib, Ic, Id intersect with each other.

This has been shown in conjunction with visual explanation, and specifically, carries out a process, wherein configuration solenoid electromagnetism is special The intersection point of the formula chart of the load characteristic of the formula chart and value relative to stroke of property is calculated by calculating.

In the curve graph as shown in figure 15 relative to the stroke characteristic of electric current (I-S), the longitudinal axis corresponds to stroke (mm), horizontal Axis corresponds to current value (being that unit indicates with A (ampere)).By the stroke characteristic relative to electric current (I-S), determine for The place each of first ' locked ' zone W1, in advance angular zone W2, holding area W3, the locking of lag angular zone W4 and second W5 Run current value required for spool 55.

According to the principle, the actual boundary (mechanical boundaries) between the first ' locked ' zone W1 and in advance angular zone W2 is calculated Out, and as shown in figure 3, the current value displacement setting value H referring to actual boundary is transferred to advance side (the increased side of electric current) The first bound current value La be designated.Similarly, the actual boundary (machine between angular zone W4 and the second ' locked ' zone W5 is lagged Tool boundary) it is calculated, and setting value H is displaced to angle of lag side (side that electric current reduces) referring to the current value of actual boundary The second boundary current value Lb be designated (step S04).

Then, it supports the first of the boundary of the advance side of holding area W3 to keep bound current value Ka and supports angle of lag The second of the boundary of the side of region W4 keeps bound current value Kb to be designated (step S05).

Then, the specified stroke characteristic relative to electric current (I-S), the first bound current value La, the second side as described above Boundary current value Lb, first keep bound current value Ka and second to keep bound current value Kb that side is written by characteristic calculation part 18 In the nonvolatile memory of boundary's storage unit 16 (step S06).As the process in step S06, for example, for example, by according to One keeps bound current value K and second that the calculating of bound current value Kb is kept to set spool 55 securely in the two of holding area W3 A holding current value (being greater than the first holding bound current value Ka and less than the second holding bound current value Kb) can calculate, and Two holding current values can be stored in boundary by becoming the holding of the first holding bound current value Ka and second bound current value Kb In storage unit 16.

As a result, relative to the stroke characteristic of electric current (I-S), the first bound current value La, the second boundary current value Lb, first It keeps the holding of bound current value Ka and second bound current value Kb to store to boundary storage unit 16, and correspondingly, is obtaining In the case where target phase information, phase control unit B setting is detected according to target phase information and by phase-detection portion T Relative rotation phase calculates the current value to be exported with the stroke characteristic relative to electric current (I-S).

In advance angle port, the opening of PA increases so that in the case where relative rotation phase high-speed displacement, by reference to first Bound current value La can solve the inconvenience (false-lock state) that relative rotation phase is unexpectedly transferred to lock state.Similarly, stagnant The opening of relief angle port PB is set as in increased situation, by reference to the second boundary current value Lb, can solve relative rotation phase Position is unexpectedly transferred to the inconvenience (false-lock state) of lock state.Correspondingly, working oil can use wide opening supply and discharge, and energy Realize response control.

In the case where relative rotation phase reaches target phase by control (including relative rotation phase and target phase Deviation reduce in the case where), first keep bound current value Ka and second keep bound current value Kb between electric current it is defeated Out reliably to stop the displacement of relative rotation phase.

In this configuration, by being supplied to electromagnetic solenoid Va without using detection with 17 setting electric current value of the output section PWM Electric current current sensor, relative rotation phase can be controlled accurately.

The improvement example of embodiment introduced below.That is, disclosure configuration is as follows in addition to previous embodiment.With with this reality The component for applying the identical function of example description is described with identical appended drawing reference.

According to embodiment, spool 55 can be set in five regions from the first ' locked ' zone W1 to the second ' locked ' zone W5. Alternatively, vario valve arrangement for controlling timing A can be configured to without in the first ' locked ' zone W1 and the second ' locked ' zone W5 One, that is, spool 55 can be set in four regions.

The improvement example should be configured so that the first bound current value La and one of the second boundary current value Lb is set, However, control mode may be set to be similar to control mode disclosed in the embodiment.

According to embodiment, the first bound current value La and the second boundary current value Lb are designated according to setting value H.As choosing It selects, setting value H should not be appointed as predetermined value, also, for example, consider line according to the performance of the coil used in electromagnetic solenoid Va The value of the aging of circle, alternatively, for example, it is contemplated that the even if distance that spool 55 cannot suitably be run when electromagnetic solenoid Va is motivated Value, these values be applicable as support performance variable.

Solenoid electric valve V may be configured so that the control area of spool 55 be set in from the first ' locked ' zone W1 of embodiment to Four regions of angular zone W4 are lagged, are corresponded to alternatively, the control area of spool 55 can be set in from the angular region in advance of embodiment Domain W2 to second locks the region in four regions of W5.

Even if ' locked ' zone is set to one in the end of the operation area of spool 55, bound current value (duty as a result, The value of ratio) it can be set.

The present invention is suitable for including the electromagnetic type control valve for controlling phase controlling and locking mechanism by level of fluid pressure Vario valve arrangement for controlling timing.