JPS60500634A - Switching clutch control circuit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Switching clutch control circuit In the present invention, the switching clutches are radially adjacent to each other under the control of the change gear shift device. Depending on the rotational speed and running conditions, i.e. pull or push operation, be engaged with a weak connection and released by spring force after rapid ejection. torque converter arranged in a common structural space together with a synchronized transmission gear The present invention relates to a control device for a switching clutch with a single converter.

A control device of this type is known, for example, from DE 2941935 A1. It is. According to this known technology, weak switching depends on the running condition (thrust/traction force). is possible, but the structural costs to achieve this result are quite high (and cutting costs). The switching operation time also becomes longer.

It is therefore an object of the invention to provide a control device of the type mentioned at the beginning of the description with a structural The objective is to improve both cost and switching speed.

This object is solved by the features of claim 1.

Hydraulic oil is filled through large volume piping and chambers, and the dimensions of the pressure chambers on the radially outer side are By selecting the method accordingly, the laminates can come into contact with each other more quickly. At the same time, part of the engine torque is also transmitted. Inside the outer pressure chamber in verse The rotational speed and centrifugal force that acts in the inner pressure chamber but also operates inside the inner pressure chamber Dependent dynamic pressures are superimposed on the switching pressure (system pressure), resulting in larger rotations. At higher speeds, higher transmission torque is achieved. Therefore, oil The pressure oil itself can switch traction force or thrust force through the action of centrifugal force, i.e. Traction - Large rotational speed - Large centrifugal force - High transmitted moment - Short sliding time Propulsion - Idling - Small centrifugal car Low transmitted moment - Long sliding time By identifying the load direction, a control valve that depends on the load direction becomes unnecessary.

Hydraulic oil is rapidly drained from both pressure chambers by the fill-quick drain valve, so that the The opening of the latch is also rapidly effected by the spring. It's a simple burrito This is because there is no need to push the hydraulic oil back through the supply pipe.

Preferred embodiments of the invention are set out in claims 2-10.

By selecting the size of the radially outwardly extending chamber (acting as the supply pipe), The mass of the piston and spring is easily balanced by the fill-quick drain valve, so the rotation Even at relatively high rotational speeds, at relatively low switching pressures - system resistance pressures, the outer Supply to the pressure chamber is guaranteed.

Transfers part of the pressure force to be filled initially and the syntorque to the second control valve. (i.e., the pressure chamber located on the radially inner side), only the pressure inside the pressure chamber located on the radially outer side is doubled. Since there are two switches and they can be switched, in addition to coupling that matches the driving conditions, the maximum possible rotation torque can be achieved. Quick transmission of information.

Very easily achieved.

The structure of the filling-rapid drain valve according to claim 3 and the structure of the control valve according to claim 4 Due to the structure and the arrangement of the associated pressure chambers approximately in a radial plane, With improved construction conditions, for example, by means of a valve mounted on the clutch support, A short connecting path with a large volume is realized. This configuration is especially suitable for M, and the switching operation time is shorten.

There is no Q trowel directly inside the switching clutch, but a flange on the housing. The control arrangement according to claim 5 for the areas connected by This will further ensure that the issues faced are resolved.

Cooling for cooling laminate equipment - lubricants and hydraulic fluid for clutch operation Particularly preferred is the arrangement of impulse valves combined with large-volume piping for supplying , this impulse valve is activated when the switching valve or solenoid valve switches to once-through flow. Once-through is established only by the loss of pressure in the supply piping. pressure chamber is filled with hydraulic oil and the pressure is balanced through the restriction in the bypass pipe, then the shock valve The valve closes automatically and the reservoir can be filled with hydraulic oil again. Lubrication + O is supplied only in the closing phase of the clutch, but very strongly. inner pressure There is no control valve for filling the chamber with hydraulic oil, and Claim 10 Accordingly, if only an overpressure valve or throttle is provided, the structure will be even simpler. .

) Next, the actual aspects of the present invention shown in the drawings will be explained in more detail.

Figure 1 shows a part of the splitting device of the Konhaak switching clutch, especially the area of the switching clutch. Hydraulic circuit diagram showing the area, Figure 2 shows the fill-quick drain valve and the axis showing the switching clutch, . Directional half-sectional view, Fig. 3. Two-way C with control valve for filling hydraulic oil to internal pressure V. A half-sectional view in the axial direction showing the replacement clutch 7, Figure 4 shows the pressure chamber and clutch support on the outside in the radial view. A diagram plotting the transmission torque of the clutch against the rotational speed of the holding body. Figure 5 shows the radial direction. The transmission torque of the clutch is expressed by the pressure chamber on the inner side and the rotation speed of the clutch support body. It is a lot diagram.

Figure 1 shows the control of the converter switching clutch, that is, the converter switching coupling device. The parts of the control section that are related to the switching clutch and the switching coupling device are shown. ing. l is a switching clutch, which controls the pressure chamber 4 on the radially outer side and the pressure chamber 4 on the radially inner side. force chambers 6, these pressure chambers c ×It acts on the pressing piston 12, and the pressing piston 12 acts on the product N temporary unit 11. Ru. The push piston 12 is pushed back into the open position by the spring 13. 3 is filling-sudden quick discharge valve, 5 is a control valve, both of which are mounted on or at the clutch support 14; (See Figure 2.3). Switching valve 9, impact valve 8 and solenoid valve 9 5 is fixedly mounted on or inside the housing sink 15 of the switching clutch opposite thereto. installed. The coolant reservoir 71 and the hydraulic oil reservoir 75 are It is disposed in the housing 15 of the switching clutch 1. Fill-quick drain valve 3 , is connected to the pressure chamber 4 on the radially outer side via a filling-discharging line 41. Both are connected to the pressure chamber 6 located on the inside in the radial direction via a discharge pipe 61. tube Channel 41.61 has a large cross-sectional area for relatively fast filling and emptying. ing. Filling-discharging pipe 41 and control 410 valve 5. Support hakama I: - Possible C self-tube 55 i <; 5 branches. Switching valve 9711・Ra filling- The connecting pipe 382 leading to the quick discharge valve 3 forms a chamber 2 at the clutch support 14. The control piping 37 branches from the chamber 2. switching valve 9 is connected to the shock valve 8 via an oil field oil pipe 81 which also has a large capacity, and is connected to the shock valve 8 to supply hydraulic oil. It is switched by control piping 91. The control piping 91 is filled and bled by the system. This is done via a solenoid valve 95 connected to the pressure pipe 76. The solenoid valve 95 is electrical conductor connected to a switch (not shown) on a gearshift device or transmission 97. The electric conductor vA97 is also equipped with a push switch 96. , the suppression switch 96 is activated when a predetermined minimum pressure exists within the system pressure line 76. The solenoid valve 95 is allowed to operate only in this case. A large volume hydraulic oil pipe 8 is connected via an impact valve 8. Depending on the pressure in system pressure line 76 (hydraulic oil reservoir 75 can be connected to ) is connected to the pipe 81, and the coolant pipe 73 or sometimes the coolant Along with the reservoir 7I, there is one large volume coolant pipe 72 (the laminated plate of the switching clutch l). unit 11). In order to control the shock valve 8, the shock valve 8 is an operating device 8 directly connected to the system pressure piping 76 for turning it on. 2. The OFF operation of the impact valve 8 is performed in combination with the operating device 83. This is done via a compression spring 86, and this operating device 83 is connected to a large volume hydraulic oil pipe 81. It is arranged between the system pressure piping 76 and the operating device 83 and the system pressure piping 76. A diaphragm 85 is also arranged in between. The system pressure piping 76 is connected directly and to the coolant distribution. The pipe 73 is connected to a well-known hydraulic pump 7 via a pressure limiting valve (not shown). . A control valve 5 for filling the radially inner pressure chamber 6 with hydraulic oil depending on the pressure. Instead, there is a radially outer filling-removal line for the pressure chamber 4 and a radially inner pressure chamber 4. Two connecting pipes may be provided between the pressure horn chamber 6 and the throttle. Also, the control valve 5 Alternatively, it is also possible to use an overpressure valve or a two-throttle.

FIG. 2 shows the clutch support 14 driven by the converter turpin. A switching clutch 1 with a switching clutch 1 is shown. The filling-quick draining valve 3 is a switching clutch. 1 to the clutch support 14 by, for example, a fastening screw 390. Pi The stone 31 is disposed within a cylindrical inner hole 32 in the housing 39, and is in the closed position. In the illustrated case, it is on the outside in the radial direction. In this position, the radially outer pressure chamber 4 is , to the discharge port 35 via the fill-discharge line 41 and to the radially outward pressure chamber. 6 is connected to a discharge port via a discharge pipe 61. Both pressure chambers 4.6 are It acts on the laminate unit 11 via the stone 12. Exhaust port 35.36 , is arranged in the housing 39 of the fill-quick drain valve 3. Spring 33 is centrifugal Even when no force is applied, the piston 3I is pushed radially outward. control piping 37 is connected to the chamber 2 and cooperates with the outer piston surface 34. 15 is a switching clutch 1 fixed housing, and the switching clutch 1 is driven by the inner laminated plate carrier 1. This is done via 6.

In FIG. 3, the control valve 5 is attached to the clutch support 14 and is radially outward. When the pressure in the pressure chamber 4 at A filling-discharging pipe 41 is connected to the inner pressure chamber 6 and filled with hydraulic oil. for the purpose of the filling line 62 and for the maximum possible transmission of the engine torque. , through the pressure chamber 6 and the switching clutch 1, the filling-discharging pipe 41 is connected to the radially inner pressure. Connected to chamber 6. In the control #-50 no. 57, there are seven diametrically extending holes. 7 of the cylindrical parts ε2 are γ1 pins. , : , , 7. Inside j'L52 same 22 A certain piston 51 is moved radially outward by a compression hole 53 despite the action of centrifugal force. is pressed. The pressure of the pressure chamber 4 on the outside in the radial direction] via the control piping 55, The outer piston surface 54c is also transmitted and pushes the screw I/n 51 in a circular direction in the radial direction. pressure The chamber 4.6 is connected to the control valve when the switching clutch 1 is closed under the action of the pressure chamber 4.6. 5 is closed via line 41.62 and line 55.56.

FIG. 4.5 shows the pressure chamber 4.6 and the clutch support 14 at a rotational speed of 7 minutes. The relationship between the transmission torque Mx of the replacement clutch 1 is illustrated. Figure 4 shows the radially outer FIG. 5 shows the case of the pressure chamber 4, and FIG. 5 shows the case of the radially inner pressure chamber 6.

The transmitted torque is the same, taking into account the piston surface obtained in connection with the pressure chamber 4.6. Calculated based on constant switching pressure and spring pressure, friction surface, friction coupling and friction value.

As can be seen from FIG. 4 related to the pressure chamber 4, the rotation speed of the clutch support 14 is high. , the transmission torque MK of the clutch 1 increases.

In addition, the transmission torque related to the radially inner pressure chamber 6 (Fig. 5) also increases when the rotational speed is high. It increases, but the slope is not very high.

The operation of the control device is as follows.

When replacing the transmission gear (change gear) of the transmission gear device, the diagram of the replacement device The circuit of electrical conductor 97 is interrupted by movement to the neutral position. The solenoid valve 95 shuts off the system pressure piping 76 and bleeds the hydraulic oil control piping 91. Therefore, the switching valve 9 also bleeds the chamber 2. The pressure inside the control pipe 37 disappears. Therefore, the fill-quick drain valve 3 is in the position shown, and the oil in the pressure chamber 4.6 is , which has a large cross-sectional area, is discharged through a port 35.36 through a pipe 41.5i.

For example, when the gear lever is moved from the start position to the speed position, the switch closes. Therefore, the lowest system pressure is generated in the pipe 76 and the push switch 96 is connected to the conductor 97. When the probe is closed, a current flows. The switching electromagnet of the solenoid valve 95 is excited and becomes electromagnetic. To displace the valve 95, the hydraulic oil control line 91 is coupled to the system pressure line 76. , the switching valve 9 connects a large volume hydraulic oil pipe 81 to the chamber 2 via the connecting pipe 38. . Therefore, the pressure in the hydraulic oil pipe 81 and the bypass 84 disappears. It is a system This is because the pressure from the pressure pipe 76 passing through the throttle 85 cannot be quickly balanced. operation The device 82 switches the impulse valve 8 to flow through, so that the chamber 2 is impulsively connected to the system pressure line 7. 6 and the control pipe 37 filled with hydraulic oil from the hydraulic oil reservoir 75 η1. Due to the increase in pressure passing through, the fill-rapid drain valve 3 is also set to flow through, so that the radial The outer pressure chamber is also filled with hydraulic oil, and the pressing piston 12 is connected to the laminated plate unit 1. 1. At the same time, in the shock valve 8, the coolant pipe 73 Together with the reservoir 71, they are impulsively connected to the coolant pipe 72, so that they abut each other. The laminates, which are still undergoing sliding, are optimally lubricated and cooled.

After the pressure in the radially outer pressure chamber 4 increases, the radially inner pressure chamber 6 is filled with a Hydraulic oil passes through the control pipe 55, the control valve 5, the supply pipe 56 and the filling pipe 62. is fulfilled, so that the maximum possible transmission torque is realized via the pressure chamber 4.6. oil When the filling is completed and the pressure inside the bypass pipe 84 of the shock valve 8 rises to the system pressure, , because the impact valve 8 is closed by the operating device 83 and the spring 86, the reservoir 71.75 (Hydraulic oil can be filled again. Loss due to leakage is 35g of throttle. ・It is replenished by the system pressure piping 764. System pressure inside piping 6: Well, room 2 and pressure chambers 4 to 6, the centrifugal force-dependent pressure is superimposed, so the Therefore, when the rotational speed of the clutch support body 14 is increased, the transmitted torque also increases (fourth ．． (See figure 5). In this way, the state of the vehicle - pull/push - is also affected by the hydraulic circuit. In this case, only the hydraulic fluid itself is taken into account.

The application of the invention is not limited to the illustrated example. For example, the solenoid valve 95 controls system pressure. When the hydraulic oil control pipe 91 is turned off, the switching valve 9 is switched to once-through flow. It is also possible.

1... Switching clutch 2... Chamber 4.6... Pressure chamber 4 1... Filling-discharging pipe (chamber) 81... Hydraulic oil piping (chamber) International Cooking Report Holder 1Q605006: (Continuation of 4(5) 1st page [Co., Ltd.] Inventor Boss Franz @Inventor Beaver Gerolt Federal Republic of Germany Day 7990 Kressbrompachstrasse-1 Federal Republic of Germany Day 7994 Langenalgen Mühlenkerland (Address none)

Claims (1)

[Claims] 1. The switching clutch is adjacent to the radial direction through the control of the change gear shift) W position. Depending on the rotation speed and running conditions (traction/thrust), the Synchronous, closed by a tight connection and opened by spring force after rapid evacuation One torque converter in a common structural space with a transmission gear It is a control device for a replacement clutch, and the pressure chamber (4) located on the outside in the radial direction is a large volume piping. and chambers (81, 2, 41) which are initially filled with a pressure medium and which both pressures The pressure dependent on centrifugal force is superimposed on the system pressure in the force chambers (4, 6), and both pressures Particularly, the pressure medium in the chambers (4, 6) is discharged via the fill-quick discharge valve (3). A control device with a characteristic. 2. In order to close the switching clutch (1), the pressure medium enters a radially outwardly extending chamber. (2) where, under the action of centrifugal force, the filling-rapid drain valve (3) changes. This displacement corresponds to the radially outward pressure chamber (4) discharge port i. Otsu radial pronation ↓: Comparative pressure chamber (6) discharge boat (36> is a quiet desk, same as that Sometimes the filling-discharging line (41) of the pressure chamber (4) located radially outwardly connects the pressure chamber (4). The chamber (2) is connected to the switching clamp to fill the pressure medium. At this time, the laminated plates (11) of the chain (1) come into contact with each other and absorb a part of the engine I. Depending on the pressure in the radially outward pressure chamber (4), the control valve (5) The filling pipe (61) of the radially inner pressure chamber (6) is opened, and both pressure chambers (4 , 6) to transmit the maximum rotational torque and open the switching clutch, ch (1). Bleed chamber (2) and fill-quick drain valve (3) to both pressure chambers (4, 6). ) for the pressure medium in short pipes with large cross-sectional areas and bows 1-(41, 61, 35, 36) The control device according to claim 1, characterized in that the control device discharges at the same time through . 3. The piston (31) of the filling-quick drain valve (3) has a cylindrical interior extending in the radial direction. It is arranged in the hole (32) and can be moved in the radial direction by the compression spring (33) even without centrifugal force. In the outward open position (Fig. 2) there is a holder for discharging the pressure medium from both pressure chambers. The pressure medium that fills the radially outer pressure chamber (4) reaches the radially outer side. from the chamber (2), on the outer piston surface (34) of the fill-quick drain valve (3). Directly guided through the pipe (37), the piston (31) is moved under the action of the compression spring (33) and radially inward to the filling position against the centrifugal force of the cough spring and piston. A control device according to claim 1 or 2, characterized in that: 4. The piston (51) of the control valve (5) has a cylindrical inner hole (52) extending in the radial direction. ), and even without centrifugal force, the compression spring (53) (Fig. 3), the outer piston surface (54) is radially On the outer side, Tachiko (4) was attacked by the former 4th swordsmith, and Bif of the price (5) Move the cylinder 22 times in a radial direction to fill the pressure chamber c'6). (62) is opened to allow both pressure chambers (4, 6) to communicate with each other. Claims 1 to 3 above refer to a city control device for a first-round game. 5. Coolant is supplied to the shock valve (8) and the volume only during the closing process in the switching clutch (1). Claims 1-1 characterized in that the coolant is supplied via a large coolant pipe (72). Which of item 4 is the control device according to item 1. 6. Converter, converter bypass clutch and h switching clutch (1) Generate system pressure of pressure medium and lubrication of switching clutch - system pressure of coolant A pressure medium reservoir (75) and a lubrication-coolant reservoir are located near the pump (7) for 6. The control device according to claim 5, further comprising a sensor. 7. Between the filling-quick drain valve (3) and the impact valve (8), there is a flow-through position and a bleed position. A switching valve (9) equipped with By operating the switching valve (9), this system pressure is transferred to the switching lever position via the solenoid valve (95). The electrical conductor leading to the solenoid valve (95) is switched depending on the For example, when it reaches about 5.1 kg/cd, it is turned on via the push switch (96). The control device according to claim 5 or 6, characterized in that: 8. Only when the switching valve (9) is operated to the filling position, a large volume of pressure medium is suddenly released. The body pipe (81) is connected to the system pressure pipe (76), and the large volume coolant pipe (72) is connected to the system pressure pipe (76). Impulse valves (8) are connected to the pump (7) so as to be respectively coupled to the coolant pipes (72). ), the pressure medium reservoir (75) and the switching valve (9) are connected to the child medium circuit. Replacement. Coolant piping (with Kura, Chi (i) and Kan 4 old - Coolant Lizanosa - (71) 73) The control device according to claim 7, wherein the control device is disposed between the control device and the control device. 9. The operating device (82) of the shock valve (8) is directly connected to the system pressure piping (76). The other operating device (83) is tightened to the bypass pipe (84). The bypass pipe (84) is connected to the pressure medium pipe (81) for operation. It is arranged between the device (83) and connected to the system pressure piping (76) via the throttle (85). The shock valve (8) is connected to the pressure tank spring for pressure equalization via the throttle (85). (86) The control according to claim 8 is maintained in the closed position by control device. 10. Install an overpressure valve in place of the control valve (5) or connect it directly to the filling-discharging pipe. Claim 2, characterized in that a throttle is disposed in the filling conduit (62). Control device as described. ■