CN1734127A - Hydraulic circuit and hydraulic control unit for hydraulic power transmission - Google Patents
Hydraulic circuit and hydraulic control unit for hydraulic power transmission Download PDFInfo
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- CN1734127A CN1734127A CNA2005100894024A CN200510089402A CN1734127A CN 1734127 A CN1734127 A CN 1734127A CN A2005100894024 A CNA2005100894024 A CN A2005100894024A CN 200510089402 A CN200510089402 A CN 200510089402A CN 1734127 A CN1734127 A CN 1734127A
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Abstract
This fluid transmission device 1 is provided with a friction engaging element 13a of the lock up clutch between a fluid transmission chamber R1 in which a pump impeller 11 and a turbine runner 12 are arranged and a servo oil chamber R2 of the lock up clutch 13. An oil passage L2 for lock up for supplying oil pressure for lock up into the servo oil chamber and an oil passage L1 for circulation for supplying oil pressure for circulation into the fluid transmission chamber are connected with a common oil pressure supply circuit S2, and an orifice 21 is arranged in the oil passage for circulation. Consequently, locking-up can be performed by providing difference in supply pressure while commonizing oil pressure supply in the oil passage for lock up and the oil passage for circulation.
Description
Technical field
The present invention relates to the oil hydraulic circuit of fluid transmission means such as hydraulic couplers, fluid torque converter, particularly relate to the oil pressure that the fluid transmission means that possesses lock-up clutch is carried out and supply with control.
Background technique
In the fluid transmission means, in the fluid Transmission Room in opposite directions between pump impeller and the turbine of configuration configuration directly is connected the lock-up clutch of pump impeller and turbine so that the torque transmission efficiency raising in the less zone of the slippage of the fluid of transmission torque is general way.Lock-up clutch roughly has two kinds of forms.Wherein a kind of is that the flexible single plate clutch that is fixed on the turbine hub is carried out in conjunction with the form that breaks away from.Another kind is the configuration multi-disc constitutes between the casing of fluid transmission means and turbine frictional engagement element, and utilize in the casing at fluid transmission means and isolate the form that the servopiston that disposes in the servo grease chamber that is provided with makes it combine disengaging with the fluid Transmission Room.
In the structure of above-mentioned single plate clutch form, by supplying with oil and this oil discharged from locking ON oil circuit to the fluid Transmission Room from the oil circuit between clutch plate and the fluid transmission means casing (locking OFF oil circuit), form locking OFF state, on the contrary, by supplying with oil pressure to the fluid transfer chamber side, form the locking ON state that lock-up clutch carries out combination from locking ON oil circuit.Because the action of such lock-up clutch, the oil pressure of the fluid transmission means of this form are supplied with by hocket supply and two oil circuits of discharging, are that locking OFF oil circuit and locking ON oil circuit carry out.
Relative therewith, in the frictional engagement element of multi-disc carries out in conjunction with the form that breaks away from servopiston, because after the fluid Transmission Room was supplied with oil pressure, servopiston was pressed in the servo grease chamber, so can not carry out as simple locking control as the single plate clutch.
In the technology in the past, supplying with oil pressure to fluid transmission means is by supplying with two oil circuits of discharging, promptly with the oil circuit of supplying with oil in the working room with discharge the identical oil circuit of the oil circuit of the oil in the working room and carry out with hocketing, and the locking that the oil pressure that control supplies with to servo grease chamber is set is in addition controlled special-purpose oil circuit (with reference to patent documentation 1).
Patent documentation 1: specially permit communique No. 2641419.
The lock-up clutch of above-mentioned monolithic form because its simple structure, supply with oil circuit have two enough, favourable on the loop constitutes, but the also corresponding increase of external diameter of clutch when the big torque of correspondence.Relative with it, the lock-up clutch of multi-disc form is owing to can guarantee to transmit torque with the lamination number of friction plate, has the advantage that can transmit big torque and avoid the clutch external diameter to maximize, it is complicated that but structure but becomes, must there be aforesaid three because of supplying with oil circuit, so can't avoid the complicated of loop formation.
Also have, in the oil hydraulic circuit of prior art, except the control valve of control fluid torque converter, also must dispose the control valve of control lock-up clutch, not only causing expense increases, and has also increased to constitute required space, loop.
Summary of the invention
The present invention proposes in view of said circumstances, and main purpose is and can constitutes the lock-up clutch of control fluid transmission means and supply with the circulation oil pressure with simple loop.
Also have, can be by between fluid transmission means and its oil hydraulic circuit of control, simple conversion loop being set, by the corresponding multi-form fluid transmission means of common oil hydraulic circuit.
For reaching above-mentioned purpose, essential characteristic of the present invention is: possessing pump impeller 11, turbine 12 and lock-up clutch 13, and dispose in the oil hydraulic circuit of the servo R2 of grease chamber fluid transmission means 1 spaced apart from each other of the fluid Transmission Room R1 of above-mentioned pump impeller and turbine and lock-up clutch, will supply with locking to above-mentioned servo grease chamber and be connected to common oil pressure supply circuit S2 with the circulation that circulates to above-mentioned fluid Transmission Room supply with oil pressure with oil circuit L1 with oil circuit L2 with the locking of oil pressure.
In this oil hydraulic circuit, above-mentioned lock-up clutch carry out in conjunction with the time, will supply to the locking oil pressure of above-mentioned servo grease chamber from the valve 31 of regulation by above-mentioned common oil pressure supply circuit, supply to above-mentioned fluid Transmission Room by common oil pressure supply circuit.
Above-mentioned locking oil pressure is the auxiliary pressure of being supplied with by modulating valve, when will assisting pressure to supply to above-mentioned servo grease chamber and above-mentioned fluid Transmission Room by above-mentioned common oil pressure supply circuit, the pressure regulation action of carrying out according to circuit oil in the pressure regulator valve 32 convection cell Transmission Rooms is to the oil pressure that the supplies to servo grease chamber control of reducing pressure.
Specifically, be connected to the oil pressure supply circuit by throttle orifice 21 and constitute above-mentioned circulation oil circuit.At this moment, above-mentioned circulation also can possess with above-mentioned throttle orifice with oil circuit and disposes side by side, and stops from the one-way valve 22 that flow of oil pressure supply circuit to the fluid Transmission Room.Above-mentioned one-way valve possesses the throttle orifice 22a bigger than above-mentioned throttle orifice 21, to allow from above-mentioned fluid Transmission Room flowing to the oil pressure supply circuit.
In this oil hydraulic circuit, when above-mentioned lock-up clutch breaks away from, supply with oil pressure by other oil pressure supply circuit S3 to above-mentioned fluid Transmission Room, and circuit oil in the fluid Transmission Room is delivered to cooler by the valve 31 of above-mentioned one-way valve 22 and regulation.
Also have, essential characteristic of the present invention is: possess fluid transmission means 1 with lock-up clutch 13, built-in to this fluid transmission means supply with oil pressure oil pressure supply circuit S2, S3 valve body 3 and connect in the hydraulic pressure control device of fluid transmission means of oil circuit L1, L2 of oil pressure supply circuit of above-mentioned fluid transmission means and valve body, in above-mentioned oil circuit, dispose and make oil circuit connect the conversion loop 2 of the working forms of suitable lock-up clutch.
Specifically, above-mentioned oil pressure supply circuit possesses two and supplies with oil circuit S2, S3, and above-mentioned conversion loop is forked to above-mentioned two oil circuit L1, L2 with above-mentioned two of supplying with in the oil circuit.
At this moment, above-mentioned supply oil circuit constitutes with oil circuit S3 by supplying with the circulation that circulates with oil pressure with the locking of oil pressure with oil circuit S2 and in the fluid Transmission Room of fluid transmission means to above-mentioned fluid transmission means supply locking, diverge locking in above-mentioned conversion loop with oil circuit, servo R2 of grease chamber that is connected to lock-up clutch wherein, another is connected to fluid Transmission Room R1 by throttle orifice arranged side by side 21 and one-way valve 22.
Say that more specifically above-mentioned conversion loop is built in in oil pump casing 51, oil pump cover 52 or the mission case of oil pump 5 of oil pressure source of the oil hydraulic circuit that constitutes above-mentioned valve body any one.
In the formation of the invention described above,, can make the lock-up clutch combination by the oil pressure of in the fluid Transmission Room, supplying with to carry out work owing to supply with oil pressure with oil circuit and locking with oil circuit to circulation from common oil pressure supply circuit.Therefore, constitute, can remove the oil pressure supply circuit of the special use that is used to make the lock-up clutch combination, thereby will control the oil hydraulic circuit simplification of fluid transmission means according to this.
Particularly, be connected to by throttle orifice in the formation of oil pressure supply circuit with oil circuit, owing to can make the oil pressure of the servo grease chamber of oil pressure ratio in the fluid Transmission Room lower, just can realize locking so need not in servopiston, to set compression face product moment etc. in circulation.Also have, in circulating, be set up in parallel in the formation of one-way valve the circulation oil mass in the time of can guaranteeing locking OFF with throttle orifice with oil circuit.
The input shaft and the oil pump of the element that can in fact unavoidably will change by the change of only changing those forms of following fluid transmission means, the speed changer of for example support fluid transmission device, and do not change the valve body of built-in oil hydraulic circuit, just can change the form of fluid transmission means.Therefore, constitute, can change the torque capacity of the fluid transmission means of shared gear that is attached to automatic transmission and the valve body on the automatic transmission simply according to this.
Particularly, when conversion loop when being built in the oil pump, follow fluid transmission means form change and comprise the conversion loop in the element that needs to change, therefore can dispose more rational conversion loop.
Description of drawings
Fig. 1 applies the present invention to the oil hydraulic circuit figure of multiplate clutch as the mode of execution of the fluid transmission means of lock-up clutch.
Fig. 2 applies the present invention to the oil hydraulic circuit figure of single plate clutch as the mode of execution of the fluid transmission means of lock-up clutch.
Fig. 3 is the front view of the oil pump in the built-in conversion loop that is used for multiplate clutch.
Fig. 4 is the front view of the oil pump in the built-in conversion loop that is used for single plate clutch.
Fig. 5 comprises with the sectional view of multiplate clutch as the automatic transmission front portion of the fluid transmission means of lock-up clutch.
Fig. 6 comprises with the sectional view of single plate clutch as the automatic transmission front portion of the fluid transmission means of lock-up clutch.
Among the figure: 1-fluid torque converter (fluid transmission means), 2-changes loop, 3-valve body, the 5-oil pump, 11-pump impeller (pump impeller), 12-turbine (turbine runner), 13-lock-up clutch (lock-up clutch), 13a-frictional engagement element, 21-throttle orifice (orifice), 22-one-way valve, the throttle orifice that 22a-is big, 31-locking relay valve (valve of regulation), 32-locking control valve (pressure regulator valve), L1-oil circuit, circulation oil circuit, the L2-oil circuit, the locking oil circuit, the S2-locking circulates with oil circuit (oil pressure supply circuit) with oil circuit (oil pressure supply circuit), S3-, R1-fluid Transmission Room, the servo grease chamber of R2-.
Embodiment
Fig. 1 represents to use with servopiston as fluid transmission means makes the frictional engagement element of multi-disc carry out oil hydraulic circuit in conjunction with the mode of execution of the device of the lock-up clutch form that breaks away from.As shown in the figure, the fluid torque converter 1 as fluid transmission means possesses pump impeller 11, turbine 12 and lock-up clutch 13.And, between the servo R2 of grease chamber of fluid Transmission Room R1 that disposes pump impeller 11 and turbine 12 and lock-up clutch 13, dispose the frictional engagement element 13a of lock-up clutch 13.
In this loop, when supplying with locking with oil pressure, the servo R2 of grease chamber supplies with the circulation oil circuit L1 of circulation with oil pressure to fluid Transmission Room R1, and be connected in two supply oil circuits of oil pressure supply circuit one, be locking oil circuit S2.Another locking of fluid Transmission Room R1 with oil circuit L2 be connected to two of the oil pressure supply circuit supply with in the oil circuits another, i.e. circulation oil circuit S3.
Use among the oil circuit L1 in circulation, configuration makes the matched conversion of the working forms loop 2 of oil circuit connection and lock-up clutch.Diverge locking in this conversion loop 2 with oil circuit S2, servo R2 of grease chamber that is connected to lock-up clutch 1 wherein, another is by throttle orifice arranged side by side 21 and stop from oil pressure supply circuit S2 and be connected to fluid torque converter 1 to the one-way valve 22 that flows of fluid Transmission Room R1.One-way valve 22 possesses than above-mentioned throttle orifice 21 more wide-aperture throttle orifice 22a to the flowing of oil pressure supply circuit S2 in order to allow from above-mentioned fluid Transmission Room R1.
Then, carry out thin portion and constitute explanation.Fluid torque converter 1 possesses and will be formed with the protecgulum of the servo R2 of grease chamber and engage with pump impeller 11 incorporate bonnets and form incorporate fluid torque converter lid, and possess with and the turbine 12 of the incorporate pump impeller 11 relative configurations of bonnet and all within it sides be disposed at stator 14 between them.
Lock-up clutch 13 possesses axial direction movably the servopiston 13b among the R2 of embedded servo grease chamber, and frictional engagement element 13a, this frictional engagement element 13a by by protecgulum latchingly in conjunction with the dividing plate of outer circumferential side, and by turbine hub constituting latchingly in conjunction with the friction material disk of interior all sides.Because this configuration relation, for servopiston 13b, the oil pressure of fluid Transmission Room R1 acts on its front face side, and the oil pressure of the servo R2 of grease chamber acts on its back side.
Next, the principal pressure (primary pressure) in the loop that the control loop of fluid torque converter 1 will generate by the main inlet control valve that does not indicate among 34 couples of figure of auxiliary adjustment valve has carried out the auxiliary pressure (secondary pressure) of decompression and has pressed to carry out work as base.This auxiliary oil circuit of pressing is represented with symbol S1 in the drawings.The control loop of fluid torque converter 1 from the locking control valve 32 of the row pressure of fluid torque converter 1 and to switch the locking relay valve of supplying with to the oil pressure of fluid torque converter 1 31 be the main body formation, and is provided with the linear electromagnetic valve 33 of the switching that is used to carry out locking relay valve 31 with control.
As in the oil hydraulic circuit of above formation, when not carrying out locking, in order to remove the oil pressure of traveller end compression zone by row's general solution of 1-2 shift valve 35, locking relay valve 31 switches to the lifting position of diagram left-half.In view of the above, the auxiliary pressure communications ports d of import a, and be supplied to the fluid Transmission Room R1 of fluid torque converter 1 from oil pressure supply circuit S3.Also have, the oil in the fluid Transmission Room R1 is discharged to oil pressure supply circuit S2 with the one-way valve 22 of oil circuit L1 from heavy caliber throttle orifice 22a by pushing circulation open, and is expelled to cooler through port b, the f of locking relay valve 31.The mobile locking OFF state of reaching by these oil.At this moment, oil is undertaken by the opening fully of heavy caliber throttle orifice 22a of one-way valve 22 from the discharge of fluid torque converter 1, and guarantees big circulating load.
Relative therewith, when carrying out locking, can apply the output pressure of the linear electromagnetic valve 33 of process 1-2 shift valve 35 to locking relay valve 31 always.At this moment, though under the non-output state of linear electromagnetic valve 33, also keep the locking OFF state of front, and if linear electromagnetic valve 33 output states, then locking relay valve 31 switch to the diagram right half part lowering position.In view of the above, the auxiliary pressure of import a exports circulation oil circuit L1 to from oil pressure supply circuit S2, the oil pressure that co-current flow body Transmission Room R1 supplies with process throttle orifice 21 and carried out decompression by the role of inspection of one-way valve 22.On the other hand, directly supply with auxiliary the pressure from oil pressure supply circuit S2 to the servo R2 of grease chamber equally.Like this, because the while has through throttle orifice pressure reduction partly to the oil pressure of fluid Transmission Room R1 and the servo R2 of grease chamber supply,, and in view of the above frictional engagement element 13a is carried out combination so lockup piston 13b is pushed to fluid Transmission Room R1 side.So reach locking ON state.In addition, under this locking ON state, the oil of fluid Transmission Room R1 side is expelled to discharge oil circuit S5 through port d, the c of locking relay valve 31, and discharges through locking control valve 32.And,, also realize the locking slip state as required by locking control valve 32 these discharge capacitys of control.
As above detailed description, according to this mode of execution, the supply circuit S2 of the lock-up clutch servo-system of fluid torque converter 1 is on the way diverged, be provided with throttle orifice 21 and one-way valve 22 midway simultaneously in the fluid torque converter inner loop loop that causes fluid torque converter inside and diverged, so when locking ON, close one-way valve 22 and supply with oil pressure, thereby limited flow, and guarantee locking pressure reduction in view of the above by throttle orifice 21.Also have, when locking OFF, open one-way valve 22, and by a large amount of mobiloils to guarantee necessary lubricants capacity.
According to this structure, can press the control valve of pressing by shared locking ON, and can reduce by a control valve than three loop lockings in past with the fluid torque converter circulation, thus reduction expense and favourable aspect the space of forming the valve body structure.
The Fig. 2 that shows represents to use to possess as fluid transmission means to make the flexible single plate clutch that is fixed on the turbine hub carry out oil hydraulic circuit in conjunction with the mode of execution of the device of the lock-up clutch of the form that breaks away from the casing of fluid transmission means down.As shown in the figure, the mode of execution with the front is identical in fact as the fluid torque converter 1 of fluid transmission means, only the form difference of lock-up clutch 13.The single plate clutch of this mode is configured on the wheel hub of turbine 12, and carries out the combination disengaging on protecgulum.And,, be connected to the circulation oil circuit S3 of oil hydraulic circuit with oil circuit L2 by locking with the R3 of grease chamber of the oil pressure of the space between protecgulum and the single plate clutch when supplying with locking OFF.
In this loop, to fluid Transmission Room R1 supply with locking with the circulation of oil pressure with oil circuit L1 and supply with circulation to the R3 of grease chamber and be directly connected to other locking with the locking of oil pressure respectively with oil circuit L2 and use oil circuit S2 and circulate and use oil circuit S3.
Because the control loop that is built in the fluid torque converter 1 in the valve body 3 is with shown in Figure 1 identical, so counter element is enclosed identical reference marks with the replacement explanation.
In this oil hydraulic circuit, when not carrying out locking, in order to pass through to remove based on row's general solution of 1-2 shift valve 35 oil pressure of traveller end compression zone, locking relay valve 31 switches to the lifting position of diagram left-half.In view of the above, the auxiliary pressure communications ports d of import a, and be supplied to the locking OFF chamber R3 of fluid torque converter 1 with oil circuit S3 from circulation.Also have, the oil that enters in the fluid Transmission Room R1 from locking OFF chamber R3 is expelled to locking oil circuit S2, and is expelled to cooler through port b, the f of locking relay valve 31.The mobile locking OFF state of reaching by these oil.At this moment, oil fully carries out by bigbore throttle orifice from the discharge of fluid torque converter 1, and guarantees big circulating load.
Relative therewith, when carrying out locking, can apply the output pressure of the linear electromagnetic valve 33 of process 1-2 shift valve 35 to locking relay valve 31 always.At this moment, under the non-output state of linear electromagnetic valve 33, keep the locking OFF state of front, and if linear electromagnetic valve 33 output states, then locking relay valve 31 switch to the diagram right half part lowering position.In view of the above, the auxiliary pressure of import a exports circulation from locking to oil circuit S2 and uses oil circuit L1, and co-current flow body Transmission Room R1 supplies with oil pressure.Like this, the oil pressure of supplying with to fluid Transmission Room R1 makes single plate clutch combine with casing.So reach locking ON state.In addition, under this locking ON state, the oil of fluid Transmission Room R1 side slowly is expelled to circulation oil circuit S3 through the throttle orifice that forms on the turbine hub, and port d, the c of process locking relay valve 31 are expelled to and discharge oil circuit S5, and discharge through locking control valve 32.At this moment, by with locking control valve 32 these discharge capacitys of control, also realize the locking slip state as required.
As mentioned above, this oil hydraulic circuit can be carried out ON, OFF and the slippage control of locking with identical oil pressure control to the different hydraulic pressure torquer of the form of lock-up clutch.At this, about being built in the loop feature of valve body 3, two loops are identical, and on connecting fluid torque converter 1 and the oil circuit of valve body 3 is got in touch partly, constitute the loop of corresponding 2 oil circuits and 3 oil circuits as conversion loop 2, so valve body 3 can be carried out generalization, and corresponding to the different fluid torque converter of lock-up clutch form.
The present invention is conceived to this, is outside equipped with above-mentioned conversion loop 2 at valve body 3.As mentioned above, the fork oil circuit is minimum with the configuration space that is configured in throttle orifice 21 in the one side and one-way valve 22, so the time conversion loop 2 can be configured on the suitable position, specifically with mission case or adjacent its oil pump casing as the configuration position be real.
The Fig. 3 that shows represents to constitute an example of the concrete configuration position of the throttle orifice 21 in above-mentioned conversion loop 2 and one-way valve 22 down.In this example, utilize the casing of the oil pump 5 that is configured as the partition that in automatic transmission, separates fluid torque converter cover and mission case to carry out these configurations usually.
Fig. 3 represents each oil circuit configuration under the state of the casing of forward observation oil pump 5 (removing oil pump body).As shown in the figure, connecting locking at outer circumferential side diverges with oil circuit L1 halfway with the circulation of oil circuit S2, and will extend into all contact oil circuit conducts of straight line shape arrival axle same as before to the circulation of servo grease chamber oil circuit L1a, be connected to oil circuit L1 at fork and along the circulation that Zhou Fangxiang extends on other the part of circulation usefulness oil circuit L1b of radiation direction, along the thickness direction overlapping configuration throttle orifice 21 and the one-way valve 22 of casing.According to this configuration, throttle orifice 21 and one-way valve 22 need not in the casing that special configuration space can be built in oil pump 5.This contact oil circuit with arrive axle week to the circulation of servo grease chamber on the different Zhou Fangxiang position of oil circuit L1a.Also have, be connected to the locking oil circuit L2 of circulation with oil circuit S3 at outer circumferential side, crooked and extend along axle Zhou Fangxiang, and be connected to and the oil circuit of a Zhou Pinghang.
Relative therewith, the Fig. 4 that shows down represents that state each oil circuit down of the casing (removing oil pump body) of the oil pump when forward observation is not established the conversion loop disposes.As shown in the figure, being connected to locking at outer circumferential side is to extend into straight line shape same as before and arrive the axle contact oil circuit in week with the circulation of oil circuit S2 with oil circuit L1.Also have, be connected to the contact oil circuit L2 of circulation with oil circuit S3 at outer circumferential side, crooked and extend along axle Zhou Fangxiang, and be connected to oil circuit with a Zhou Pinghang.
The Fig. 5 that shows has only represented to dispose with the concrete cross section of multiplate clutch as the front portion of the automatic transmission of the fluid torque converter of lock-up clutch down.About the element that has been illustrated in the above-mentioned loop explanation that on this sectional view, occurs, enclose identical reference marks replacing explanation, and then the oil circuit that does not occur on the circuit diagram is constituted and describe.
The circulation oil circuit L1a that is illustrated with reference to Fig. 3 of front extends to input shaft inside through the footpath direction oil circuit of the input shaft of speed changer as the axle direction oil circuit, and leads to servo grease chamber from axle head through the oil circuit of the protecgulum inside of fluid torque converter.Also have, circulation with oil circuit L1b with the space between the stator axis in fluid torque converter impeller hub axle and week in it as oil circuit and towards fluid Transmission Room R1 inside.And, locking with oil circuit L2 with the space between stator axis and its inboard input shaft as oil circuit and lead to oil circuit with above-mentioned Zhou Pinghang of oil pump casing.Oil pump 5 possesses the oil pump cover 52 of oil pump casing 51 that holds pump gear and the open surface that covers this casing.
The Fig. 6 that shows has only represented to dispose with the concrete cross section of single plate clutch as the front portion of the automatic transmission of the fluid torque converter of lock-up clutch down.At this moment, about the element that has been illustrated in the above-mentioned loop explanation that on this sectional view, occurs, enclose identical reference marks, and the oil circuit formation that does not occur on the circuit diagram is described with the replacement explanation.
The circulation oil circuit L2 that is illustrated with reference to Fig. 4 of front extends to input shaft inside as the axle direction oil circuit of the input shaft of speed changer, and leads to the protecgulum of fluid torque converter and the locking OFF R3 of grease chamber between the single plate clutch from axle head.Also have, circulation is led to oil circuit with above-mentioned spool Zhou Pinghang of oil pump casing with the space between the impeller hub axle in stator axis and its outside as oil circuit with oil circuit L1.
Be made of above essence and recognize, by when the form of change fluid torque converter, meanwhile change the input shaft of speed changer and be related to the oil pump that has or not built-in conversion loop, the valve body of built-in oil hydraulic circuit is not done change can be corresponding.
More than describe in detail based on appropriate mode of execution of the present invention, but the present invention is not limited to this mode of execution can be implemented in the described scope of each claim in every way.
Claims (12)
1. the oil hydraulic circuit of a fluid transmission means possesses pump impeller (11), turbine (12) and lock-up clutch (13), and the servo grease chamber (R2) of the fluid Transmission Room (R1) that disposes above-mentioned pump impeller and turbine and lock-up clutch is spaced from each other, and it is characterized in that:
To supply with locking to above-mentioned servo grease chamber and be connected to common oil pressure supply circuit (S2) with oil circuit (L2) and the circulation that circulates to above-mentioned fluid Transmission Room supply with oil pressure with oil circuit (L1) with the locking of oil pressure.
2. the oil hydraulic circuit of fluid transmission means according to claim 1 is characterized in that:
Above-mentioned lock-up clutch carry out in conjunction with the time, will supply to the locking oil pressure of above-mentioned servo grease chamber from the valve (31) of regulation by above-mentioned common oil pressure supply circuit, supply to above-mentioned fluid Transmission Room by common oil pressure supply circuit.
3. the oil hydraulic circuit of fluid transmission means according to claim 1 is characterized in that:
Above-mentioned locking oil pressure is the auxiliary pressure of being supplied with by modulating valve, when will assisting pressure to supply to above-mentioned servo grease chamber and above-mentioned fluid Transmission Room by above-mentioned common oil pressure supply circuit, the pressure regulation action of carrying out according to circuit oil in pressure regulator valve (32) the convection cell Transmission Room is to the oil pressure that the supplies to servo grease chamber control of reducing pressure.
4. the oil hydraulic circuit of fluid transmission means according to claim 1 is characterized in that:
Above-mentioned circulation is connected to the oil pressure supply circuit with oil circuit by throttle orifice (21).
5. the oil hydraulic circuit of fluid transmission means according to claim 4 is characterized in that:
Above-mentioned circulation possesses with above-mentioned throttle orifice with oil circuit to be disposed side by side, also stops from the one-way valve (22) that flow of oil pressure supply circuit to the fluid Transmission Room.
6. the oil hydraulic circuit of fluid transmission means according to claim 5 is characterized in that:
Above-mentioned one-way valve possesses the throttle orifice (22a) bigger than above-mentioned throttle orifice (21), to allow from above-mentioned fluid Transmission Room flowing to the oil pressure supply circuit.
7. according to the oil hydraulic circuit of claim 5 or 6 described fluid transmission means, it is characterized in that:
When above-mentioned lock-up clutch breaks away from, supply with oil pressure by other oil pressure supply circuit (S3) to above-mentioned fluid Transmission Room, and circuit oil in the fluid Transmission Room is delivered to cooler by the valve (31) of above-mentioned one-way valve (22) and regulation.
8. according to the oil hydraulic circuit of claim 5 or 6 described fluid transmission means, it is characterized in that:
Above-mentioned fluid transmission means is configured across the gear and the oil pump of automatic transmission, and above-mentioned throttle orifice and one-way valve are configured in in oil pump casing, oil pump cover or the mission case any one.
9. the hydraulic pressure control device of a fluid transmission means, possess the have lock-up clutch fluid transmission means (1) of (13), the built-in oil pressure supply circuit (S2 that supplies with oil pressure to this fluid transmission means, S3) valve body (3) and connect the oil circuit (L1 of the oil pressure supply circuit of above-mentioned fluid transmission means and valve body, L2), it is characterized in that:
In above-mentioned oil circuit, dispose and make oil circuit connect the conversion loop (2) of the working forms that is suitable for lock-up clutch.
10. the hydraulic pressure control device of fluid transmission means according to claim 9 is characterized in that:
Above-mentioned oil pressure supply circuit possess two supply with oil circuits (S2, S3), above-mentioned conversion loop in will above-mentioned two supply oil circuits be forked to above-mentioned two oil circuits (L1, L2).
11. the hydraulic pressure control device of fluid transmission means according to claim 10 is characterized in that:
Above-mentioned supply oil circuit (S2, S3) use the circulation of oil pressure to constitute by supplying with circulation with oil circuit (S2) and in the fluid Transmission Room of fluid transmission means with the locking of oil pressure with oil circuit (S3) to above-mentioned fluid transmission means supply locking, diverge locking in above-mentioned conversion loop (2) with oil circuit, servo grease chamber (R2) that is connected to lock-up clutch wherein, another is connected to fluid Transmission Room (R1) by throttle orifice arranged side by side (21) and one-way valve (22).
12. the hydraulic pressure control device according to claim 9 or 10 described fluid transmission means is characterized in that:
Above-mentioned conversion loop (2) is built in in oil pump casing (51), oil pump cover (52) or the mission case of oil pump (5) of oil pressure source of the oil pressure supply circuit that constitutes above-mentioned valve body any one.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004232907 | 2004-08-10 | ||
| JP2004232906 | 2004-08-10 | ||
| JP2004232906A JP4140577B2 (en) | 2004-08-10 | 2004-08-10 | Hydraulic circuit of fluid transmission device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1734127A true CN1734127A (en) | 2006-02-15 |
| CN100491775C CN100491775C (en) | 2009-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100894024A Expired - Fee Related CN100491775C (en) | 2004-08-10 | 2005-08-05 | Hydraulic circuit and hydraulic control unit for hydraulic power transmission |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4140577B2 (en) |
| CN (1) | CN100491775C (en) |
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| CN103161939A (en) * | 2011-12-09 | 2013-06-19 | 现代自动车株式会社 | Hydraulic pressure control system for torque converter |
| CN101868658B (en) * | 2007-11-16 | 2013-08-21 | 丰田自动车株式会社 | Hydraulic control device for lockup clutch |
| CN103339420A (en) * | 2011-03-30 | 2013-10-02 | 爱信艾达株式会社 | Hydraulic control device |
| CN103671883A (en) * | 2012-09-03 | 2014-03-26 | 现代自动车株式会社 | Hydraulic control apparatus for hydraulic torque converter |
| CN103688087A (en) * | 2011-07-20 | 2014-03-26 | Zf腓德烈斯哈芬股份公司 | Device for actuating a frictional converter lock-up clutch of a hydrodynamic torque converter |
| CN103814240A (en) * | 2011-12-08 | 2014-05-21 | 爱信艾达株式会社 | Oil pressure control device |
| CN104696470A (en) * | 2015-03-10 | 2015-06-10 | 贵州凯星液力传动机械有限公司 | Hydraulic transmission device with reversing mechanism |
| CN105805264A (en) * | 2016-05-07 | 2016-07-27 | 安徽盛运重工机械有限责任公司 | System for monitoring oil quantity of hydraulic coupling and alarm method of system |
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| US8579094B2 (en) | 2010-01-11 | 2013-11-12 | GM Global Technology Operations LLC | Hydraulic control system for an automatic transmission having a three path torque converter control subsystem |
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2004
- 2004-08-10 JP JP2004232906A patent/JP4140577B2/en not_active Expired - Fee Related
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2005
- 2005-08-05 CN CNB2005100894024A patent/CN100491775C/en not_active Expired - Fee Related
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| CN101868658B (en) * | 2007-11-16 | 2013-08-21 | 丰田自动车株式会社 | Hydraulic control device for lockup clutch |
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| CN103814240B (en) * | 2011-12-08 | 2015-07-22 | 爱信艾达株式会社 | Oil pressure control device |
| CN103814240A (en) * | 2011-12-08 | 2014-05-21 | 爱信艾达株式会社 | Oil pressure control device |
| CN103161939A (en) * | 2011-12-09 | 2013-06-19 | 现代自动车株式会社 | Hydraulic pressure control system for torque converter |
| CN103161939B (en) * | 2011-12-09 | 2016-09-21 | 现代自动车株式会社 | Hydraulic control system for torque-converters |
| CN103671883A (en) * | 2012-09-03 | 2014-03-26 | 现代自动车株式会社 | Hydraulic control apparatus for hydraulic torque converter |
| CN103671883B (en) * | 2012-09-03 | 2017-09-29 | 现代自动车株式会社 | Hydraulic control device for fluid torque-converter |
| CN104696470A (en) * | 2015-03-10 | 2015-06-10 | 贵州凯星液力传动机械有限公司 | Hydraulic transmission device with reversing mechanism |
| CN104696470B (en) * | 2015-03-10 | 2019-02-26 | 贵州凯星液力传动机械有限公司 | A kind of hydraulic transmission system with reversing mechanism |
| CN105805264A (en) * | 2016-05-07 | 2016-07-27 | 安徽盛运重工机械有限责任公司 | System for monitoring oil quantity of hydraulic coupling and alarm method of system |
| CN108626368A (en) * | 2017-03-22 | 2018-10-09 | 本田技研工业株式会社 | Fluid pressure circuit |
| US10845001B2 (en) | 2017-03-22 | 2020-11-24 | Honda Motor Co., Ltd. | Fluid pressure loop |
| CN108626368B (en) * | 2017-03-22 | 2021-04-30 | 本田技研工业株式会社 | Fluid pressure circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100491775C (en) | 2009-05-27 |
| JP2006052746A (en) | 2006-02-23 |
| JP4140577B2 (en) | 2008-08-27 |
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