DE102018102690A1 - Hydraulic actuators - Google Patents

Abstract

The invention relates to a hydraulic power-on-demand actuator system (90) for a hybrid transmission, with gear actuators (102-104) and actuators (86,87) .To provide a functional hydraulic actuators, which requires little space, are Gear selector (102-104) and the actuating elements (86,87) together with hydraulic valves for hydraulically actuating the gear plate (102-104) and the actuators (86,87) in a mechatronics module (89) combined.

Description

The invention relates to a hydraulic actuator for a hybrid transmission, with gear actuators and actuators.

From the German patent DE 10 2016 217 580 B3 For example, there is known a hybrid transmission for a vehicle having a first input shaft for coupling to an internal combustion engine and a second input shaft, the first and second input shafts aligned coaxially with each other, having an output shaft, the output shaft being parallel to the first and second input shafts is, with a S1 dual-gear stage and with an S1-switching device, wherein the S1 dual-gear stage has a first and a second S1-gear stage and wherein the S1-switching device selectively the first input shaft via the first S1 gear stage or the first input shaft via the second gear stage can be geared to the output shaft, with an S2 gear stage and with an S2 shifting device, wherein the S2 shifting device optionally can technically connect the second input shaft with an S3 dual-gear stage and with an S3 shifting device, the S3 -Doppelgetriebes tufe a first and a second input shaft via the first S3-gear stage or the second input shaft via the second S3-gear stage with the output shaft can technically connect, wherein the second input shaft or the S3 dual-gear stage is designed for coupling to an electric motor, with a double gear with an S1 gear portion and an S2 gear portion, wherein the S1 gear portion forms part of the S1 dual-gear stage and the S2 gear portion forms part of the S2 gear stage, and a clutch for coupling the first input shaft to the internal combustion engine.

The object of the invention is to provide a functional hydraulic actuators for a hybrid transmission, with gear actuators and actuators, which requires little space and is energy efficient.

The object is achieved with a hydraulic actuator for a hybrid transmission, with gear actuators and actuators, characterized in that the gear plate and the actuating elements are combined together with hydraulic valves for hydraulically actuating the gear plate and the actuators in a mechatronics module. The gear actuators include, for example, gear actuator pistons which are arranged in corresponding recesses of the mechatronic module. The actuating elements are preferably a parking brake piston for actuating a parking lock and a clutch piston for actuating a clutch. The hybrid transmission is preferably arranged in a hybrid drive train of a motor vehicle. The hybrid powertrain is preferably a so-called dedicated hybrid drive. This means novel electrified concepts that can be summarized under the abbreviation DHT, where the capital letters DHT for the English terms Dedicated Hybrid Transmission stand. In such structures, the electrification is preferably not added as an add-on, but is considered advantageous in the construction of the vehicle transmission. In the hybrid transmission several switching elements, such as gear plate, and actuators, such as parking brake piston and a clutch piston, can be inserted in different combinations. For the actuation of a K0 coupling, the switching elements and a parking lock, a hydraulic actuator system is provided with only a single electromotive pump actuator. This actuator works on the power-on-demand principle. Power-on-demand means that power is advantageously tapped only when the power is needed to operate the gear regulators and / or the actuators. Accordingly, the hydraulic actuators may be referred to as single-motor actuators. The electromotive pump actuator includes an electric motor driven fluid pump. The fluid pump is advantageously designed as a reversing pump, that is, the fluid pump can promote a fluid in opposite directions. The fluid is preferably a hydraulic medium. The fluid pump is then also referred to as a hydraulic pump. The electromotive pump actuator is advantageously controlled by a local control unit, which is assigned to the pump actuator. The local control device is preferably an electronic control unit. Therefore, the electromotive or electric pump actuator may also be referred to as an electronic pump actuator. The electromotive pump actuator is abbreviated to EPA. A designed as an AND valve logic valve is advantageously connected in parallel with the fluid pump of the electromotive pump actuator. The AND valve is also referred to as a two-pressure valve. The two-pressure valve has two ports which are connected to the fluid pump of the electromotive Pumpenaktors. A third port of the two-pressure valve is connected to a fluid reservoir. A fluidic clutch actuation device advantageously comprises a fluidic clutch slave cylinder. The coupling is advantageously of the normally closed type, that is to say normally closed. Upon actuation, the normally closed clutch is pressed with the fluidic clutch actuator. The clutch is preferably an additional disconnect clutch in the hybrid powertrain, also referred to as a K0 clutch. A fluidic transmission actuating device comprises at least three gear shifters which are used to actuate each serve a switching element, and a gear plate, which serves to actuate a parking brake, wherein the gear actuators is preceded by a multiplexer arrangement. The multiplexer arrangement provides the advantage that significantly fewer solenoids are required for the valve control.

A preferred embodiment of the hydraulic actuators is characterized in that the mechatronic module comprises a preferably designed as a gear cover valve block with the valves. The valve block is, for example, a valve plate. The valve block or the valve plate comprises, for example recesses for receiving the valves, in particular of magnets, which serve to actuate the valves.

Another preferred embodiment of the hydraulic actuator is characterized in that an electric pump actuator is connected to the valve block. The electric pump actuator is for example attached to the mechatronic module, in particular to the valve block. However, the electric pump actuator can also be integrated in the mechatronic module, in particular in the valve block.

A further preferred exemplary embodiment of the hydraulic actuator system is characterized in that the mechatronic module comprises a gear actuator block for the gear actuators. The gear actuator block is, for example, a gear actuator plate. The gear actuator block or the gear actuator plate is provided, for example, with recesses which serve to receive gear actuator piston of the gear actuator.

A further preferred exemplary embodiment of the hydraulic actuator system is characterized in that a sensor module is integrated in the gear actuator block. The sensor module comprises, for example displacement sensors, which are associated with the clutch, the parking brake and / or the gear actuators. An associated with the sensor module connector is advantageously arranged in the valve block.

The gear actuator block is advantageously facing a transmission interior of the hybrid transmission. The valve block is advantageously remote from the transmission interior of the hybrid transmission. Between the valve block and the gear actuator block an intermediate plate is advantageously arranged.

A further preferred embodiment of the hydraulic actuators is characterized in that the mechatronic module comprises a clutch piston for actuating a clutch. The clutch is preferably a dry-running friction clutch, in particular a K0 clutch of the hybrid transmission.

A further preferred embodiment of the hydraulic actuator is characterized in that the clutch piston is arranged in one or the gear actuator block. The clutch piston is advantageously accommodated in a corresponding recess of the gear actuator block, in particular the gear actuator plate.

A further preferred exemplary embodiment of the hydraulic actuators is characterized in that the mechatronic module comprises a parking brake piston for actuating a parking lock. The parking brake is actuated by a parking lock actuator by the parking lock piston.

Another preferred embodiment of the hydraulic actuator is characterized in that the parking brake piston is arranged perpendicular to one or the gear actuator block. The parking brake piston is arranged for example in a corresponding recess of the gear actuator block, in particular the gear actuator plate. The term vertical refers in connection with the parking brake piston on the level of the gear plate. The parking brake piston is thus arranged perpendicular to a plane in which extends the gear actuator plate. The gear plate or gear actuator piston are advantageously arranged in the plane of the gear plate or parallel to the plane of the gear plate.

A further preferred embodiment of the hydraulic actuator system is characterized in that the parking brake piston is arranged both in the valve block and in the gear actuator block and in a, the separation point between valve block and gear actuator block breaking, cylinder is guided. This simplifies the operation of the parking lock.

The invention also relates optionally to a valve block, a gear actuator block, an intermediate plate, an actuating element, in particular a parking brake piston, a clutch piston or a Gears, and / or a hydraulic valve for a previously described hydraulic actuators. The parts mentioned are separately tradable.

The invention further relates to a method for fluidically actuating a K0 clutch and a transmission in a hybrid powertrain for changing driving conditions in a hybrid-powered motor vehicle comprising an electric motor with a previously described fluid arrangement.

If appropriate, the invention also relates to a computer program product with program code means for carrying out the method described above, when the computer program product runs on a processing device or is stored on a computer-readable data medium. The processing device is, for example, a control device which serves to control the electromotive pump actuator and the valves in the hydraulic actuator system. The control unit may be a central control unit or a local control unit which is assigned to the electromotive pump actuator or the hydraulic actuator system.

Optionally, the invention also relates to a hybrid powertrain having a hydraulic actuator system as described above.

If appropriate, the invention also relates to a motor vehicle with such a hybrid drive train.

• 1 eine vereinfachte Darstellung eines Hybridantriebsstrangs mit einem Elektromotor, einem Getriebe und einer Kupplung im Längsschnitt;
• 2 eine Fluidanordnung mit einer hydraulischen Aktorik und einer Multiplex-Anordnung;
• 3 eine perspektivische Darstellung einer hydraulischen Aktorik für ein Hybridgetriebe, wie es in 1 dargestellt ist;
• 4 eine schematische Darstellung der hydraulischen Aktorik aus 3 in der Draufsicht auf ein Mechatronikmodul;
• 5 die hydraulische Aktorik von innen betrachtet, also von einer Getriebeseite aus;
• 6 die hydraulische Aktorik von einer Außenseite betrachtet;
• 7 eine ähnliche hydraulische Aktorik wie in 6 mit einem integrierten elektrischen Pumpenaktor; und
• 8 die Darstellung eines Parksperrenkolbens im Schnitt durch das Mechatronikmodul.

Further advantages, features and details of the invention will become apparent from the following description in which, with reference to the drawings, various embodiments are described in detail. Show it:

• 1 a simplified representation of a hybrid powertrain with an electric motor, a transmission and a clutch in longitudinal section;
• 2 a fluid arrangement with a hydraulic actuator and a multiplex arrangement;
• 3 a perspective view of a hydraulic actuator for a hybrid transmission, as shown in 1 is shown;
• 4 a schematic representation of the hydraulic actuators 3 in the plan view of a mechatronic module;
• 5 the hydraulic actuator viewed from the inside, so from a transmission side;
• 6 the hydraulic actuator viewed from an outside;
• 7 a similar hydraulic actuator as in 6 with an integrated electric pump actuator; and
• 8th the representation of a parking brake piston in section through the mechatronics module.

In 1 is a hybrid powertrain 50 a motor vehicle with a hybrid drive simplified illustrated in longitudinal section. The hybrid powertrain 50 includes a primary drive (not shown) and a secondary drive with an electric motor 2 , The primary drive, for example, is an internal combustion engine. A clutch 1 is between the combustion engine and a transmission 51 arranged. at 3 is a connection of the electric motor 2 to the gearbox 51 indicated.

The gear 51 includes an input shaft 4 , The input shaft 4 is non-rotatable with the coupling 1 connected. At the clutch 1 It is a separating clutch, which is also referred to as K0 clutch. The K0 Coupling 1 is advantageously combined with a vibration damper and / or a dual mass flywheel.

The gear 51 further includes a first intermediate shaft 5 and a second intermediate shaft 6 , The first intermediate shaft 5 is coaxial with the input shaft 4 of the transmission 51 arranged. The second intermediate shaft 6 is parallel to the first intermediate shaft 5 arranged. The gear 51 also includes an output shaft 7 with a differential gear.

The gear 51 further comprises three switching elements 8th . 9 . 10 , which are designed as sliding sleeves. The switching elements 8th to 10 can be inserted in different combinations. With closed K0 clutch 1 can in the transmission 51 with the switching elements 8th to 10 different combinations of six gears for the internal combustion engine and two gears for the electric motor 2 inlaid become. In the case of switching of the internal combustion engine gears, the torque can be transmitted via the electric motor 2 be supported, and in circuits of the electric motor gears, the drive torque support can be done via the internal combustion engine.

The designed as a sliding sleeve first switching element 8th allows sliding sleeve positions S HL. The second designed as a sliding sleeve switching element 9 allows sliding sleeve positions S 2-5. The third designed as a sliding sleeve switching element 10 allows sliding sleeve positions S 3-6.

The wiring diagram for the gearbox 51 with closed K0 coupling looks like this: Operating mode / gear Sliding sleeve positions S HL S 3-6 S 2-5 Store 1 R N N Store 2 L N N Neutral N N N small electric gear E1 N N R small e-gear E1 & internal combustion engine gear 1 R N R small e-gear E1 & internal combustion engine gear 2 L N R small electric gear E1 & internal combustion engine gear 3 N R R Internal combustion engine gear 3 N R N large E-gear E2 & engine gear 3 N R L large E-gear E2 & internal combustion engine gear 4 R N L large E-gear E2 & internal combustion engine gear 5 L N L large E-gear E2 & internal combustion engine gear 6 N L L Internal combustion engine gear 6 N L N

The terms S H-L; S 2-5 and S 3-6 refer to the three sliding sleeves in the gearbox. R, N and L stand for the three positions of the respective sliding sleeve. R stands for right. N stands for neutral (middle position). L stands for links.

From the three sliding sleeves with the three positions then arise twenty-seven possible combinations for the different switching positions, but not all of which are useful. The combinations that can be used with the clutch (meaningful) and the associated operating states (gears) are listed in the table.

With open K0 clutch even more electric motor gears are available, but they are difficult to integrate into a fluid switching sequence. The K0 Clutch must be opened only for an engine start when the vehicle is moving from the drive train or to support a drive. The latter, however, is required only in extremely rare emergency situations. In the illustrated transmission example normally, since there is no internal combustion engine reverse gear, must always be able to be started electrically.

Most of the circuits can be performed with closed K0 coupling. Before laying out a switching element 8th to 10 is by appropriate torque control of the two prime movers, that is, the internal combustion engine and the electric motor 2 , the amount of torque on the switching element 8th to 10 minimized. Before inserting a switching element 8th to 10 is by a speed adjustment of not connected to the output drive the amount of differential speed on the switching element 8th to 10 minimized. Alternatively, however, in a similar manner as in an automated or automatic transmission, prior to switching of internal combustion engine gears, the K0 clutch can be opened.

In 2 is an embodiment of a fluid assembly with an electromotive pump actuator 20 shown. The electromotive pump actuator 20 , also abbreviated as EPA, includes a pump 21 by an actuator motor 22 is driven. The pump 21 is as a reversible pump in operable opposite directions of conveyance, such as arrowheads in a circular symbol that the pump 21 symbolizes, is implied.

In the actuator motor 22 it is an electric motor E. The actuator motor 22 is a local controller 23 assigned. The capital letters LCU stand for the English terms Local Control Unit. The control unit 23 is with pressure sensors 24 combined, as indicated by letter p. A two-pressure valve 25 is parallel to the pump 21 connected. The two-pressure valve 25 includes two connections for the pump 21 , With a third connection is the two-pressure valve 25 connected to a fluid reservoir.

Solid lines symbolize 2 Fluid lines, in particular hydraulic lines. Dashed lines symbolize in 2 Control lines. Valves, in particular solenoid valves, in the fluid arrangement are actuated via the control lines. Dash-dotted or dash-dotted lines symbolize 2 Sensor cables.

A coupling subsystem 30 includes a fluidic clutch actuator 60 for a K0 coupling 31 , The fluidic clutch actuator 60 includes a slave cylinder 32 with a slave piston. The slave piston is a slave-way sensor 33 assigned.

The electromotive pump actuator 20 is between the fluidic clutch actuator 60 and a fluidic transmission actuator 70 arranged.

In 2 is a switching valve 37 between the electromotive pump actuator 20 , the fluidic clutch actuator 60 and the fluidic transmission actuator 70 arranged. The fluidic transmission actuator 70 represents a gear subsystem 40 represents.

At the in 2 illustrated fluid assembly includes the fluidic transmission actuator 70 three gear shifters 81 to 83 , The gear plates 81 to 83 include equal area gearshift pistons 43 with path sensors. The gear actuators 81 to 83 is in each case designed as a switching valve gear actuator valve 45 upstream. The gear plates 81 to 83 are arranged in a gangway tower. The three gear plates 81 to 83 serve for actuating sliding sleeves. With 84 is called a parking lock plate.

During operation of the fluid arrangement can be by switching the two-pressure valve 25 the electromotive pump actuator 20 be switched from a clutch operation to a transmission operation. When switching the two-pressure valve 25 must be an unwanted operation of the transmission 40 safely avoided.

At the in 2 shown fluid assembly is a multiplexer arrangement 85 with a multiplexer switching valve 46 and a gear control valve 45 between the electromotive pump actuator 20 and the gear actuators 81 to 84 used. The multiplexer arrangement 85 provides the advantage that significantly fewer solenoids are required for valve control.

In the 3 to 6 is a mechatronics module 89 shown in different views. The mechatronics module 89 includes a hydraulic actuator 90 into which a fluid arrangement, as in 2 is shown, for actuating a hybrid transmission, as in 1 is shown integrated. On to operate gear actuators 102 to 104 , a clutch 92 and a parking lock actuator 93 required hydraulic pressure is through an electric pump actuator 91 provided.

The electric pump actuator 91 corresponds for example to the electric pump actuator 20 in 2 , At the clutch 92 For example, it is a K0 coupling that is in 1 with 1 and in 2 designated at 31. The parking lock actuator 93 used to operate a (in 3 not shown) parking brake in a hybrid powertrain of a motor vehicle, which in 1 denoted by 50.

The electric pump actuator 91 is with hydraulic lines 94 . 95 on a valve block 96 connected. The valve block 96 is as a valve plate 97 with a sealing flange 98 executed.

The mechatronics module 89 includes in addition to the valve block 96 a gear actuator block 100 , The gear actuator block 100 is as a gear plate 101 with gear actuators 102 . 103 . 104 executed. The gear plates 102 to 104 each comprise a shift rod 105 . 106 . 107 , The gear plates 102 to 104 correspond for example to the gear actuators 81 to 83 in 2 ,

The coupling 92 is via a clutch lever 108 through a clutch piston 109 actuated. The clutch piston 109 is, at least partially, in the gear actuator block 100 added. In the gearbox block 100 are also unspecified gear actuator piston of the gear plate 102 to 104 added. In addition, a sensor module 110 in the gearbox block 100 integrated.

The parking lock actuator 93 includes a parking lock plate 111 who, for example, the gearshifter 84 in 2 replaced. A parking lock piston 112 is, at least partially, in the gear actuator block 100 added. The parking lock piston 112 or the parking lock actuator 111 extend or extend perpendicular to the gear plate 101 , The shift rails 105 to 107 extend parallel to each other in the plane of the gear plate 101 and thus perpendicular to the parking brake piston 112 ,

The for actuating the clutch 92 , the gang player 102 to 104 and the parking lock required hydraulic, electrical and electronic components are advantageous in whole or in part in the mechatronics module 89 integrated. The hydraulic medium or the required hydraulic pressure are in the mechatronics module 89 via hydraulic valves, for example in a multiplexer arrangement, as in 2 designated by 85 are arranged, hydraulically to the clutch piston 109 , the parking lock piston 112 or to one of the gear plates 102 to 104 guided. The mechatronics module 89 advantageously also comprises a hydraulic medium reservoir with hydraulic medium, in particular hydraulic fluid, which is independent of a transmission sump of the hybrid transmission.

A first module of the mechatronics module 89 includes, for example, the electric pump actuator 91 with a hydraulic pump, a pump motor, a control unit, a passive logic valve, two pressure sensors and the aforementioned hydraulic medium reservoir. A second module of the mechatronics module 89 includes, for example, the plates designed as labyrinth plates 97 and 101 , an intermediate sheet 130 with valves in the valve plate 97 , the gear actuator pistons, the parking lock piston 112 and the clutch piston 109 , The clutch piston 109 acts against the clutch lever 108 and is possibly combined with an intermediate tappet. The intermediate plunger is advantageously used to seal the inside of the gear to a clutch bell.

In 4 is the mechatronics module 89 shown in a plan view. Below in the illustrated plan view corresponds in one with the mechatronics module 89 equipped motor vehicle front. On the left in the illustrated plan view, the clutch or the engine is arranged in the vehicle, as if standing in front of the vehicle and looking into the engine compartment. In 4 you can see that the intermediate sheet 130 between the sealing flange 98 the valve plate 97 and the gear plate 101 is arranged. The sealing flange 98 the valve plate 97 is advantageous for the representation of a transmission cover for the hybrid transmission. The valve plate 97 is then located externally relative to the hybrid transmission.

In 4 you can see that the sensor module 110 in the gear plate 101 is integrated while a plug 121 for the sensor module 110 in the valve plate 97 is arranged. The sensor module 110 includes all necessary sensors, such as the slave-path sensor 33 in 2 , In addition, optional speed sensors for the transmission input shaft and the transmission output shaft of the hybrid transmission in the sensor module 110 be arranged.

In 4 is a low pressure connection through a circle 123 to the valve plate 97 indicated. Through more circles 124 . 125 are high-pressure connections indicated, for example, the hydraulic lines in 3 correspond.

By larger circles 127 to 129 Valve solenoids are indicated in the valve plate 97 are integrated. The valve magnet 127 belongs to the example in 2 with 45 designated gear actuator valve. The valve magnet 128 belongs to the example in 2 designated 46 multiplexer switching valve. The valve magnet 129 belongs to the example in 2 designated 37 switching valve.

The valve magnets 127 to 129 are in the valve plate 97 advantageously arranged outside of the transmission and thus experience a lower heat load. In addition, by this arrangement, the electrical connections of the valves and the sensor via either cables or other connections, such as stamped grid, to the local control unit of the electric pump actuator 91 be guided.

In the 4 not shown) parking brake is actuated, for example via a pawl, which engages in a parking lock gear. The parking lock gear is arranged, for example, on a differential. Alternatively, the pawl of the parking brake can engage in a wheel on a gear shaft.

The parking lock piston 112 passes advantageously through the parting plane between the valve plate 97 and the gear plate 101 , This can advantageously an additional cylinder housing for the parking brake piston 112 omitted.

In 8th you can see that the parking brake piston 112 in a corresponding recess of the valve plate 97 is guided back and forth movable. A piston rod of the parking lock actuator 111 extends from the parking brake piston 112 in 8th to the left through a lid 144 therethrough. The lid 144 is with the help of seals 145 . 146 in the gear plate 101 attached.

The design of the parking lock piston 112 is advantageous such that the piston seal of the parking brake piston 112 the dividing plane between the two plates 97 . 101 with the intermediate sheet 130 does not exceed. This can cause unwanted damage to the piston seal of the parking brake piston 112 be prevented. The parking lock piston 112 becomes advantageous only in the area of the valve plate 97 moved back and forth in the recess.

Alternatively, a pressed and sealed sleeve can be provided as a piston running path. The pressure supply for actuating the parking brake piston 112 includes at two pressure transfer points 148 . 149 two hydraulic channels. The pressure supply takes place at the pressure transfer points 148 . 149 advantageous on the back, that is on the valve plate side, by an oblique bore from the labyrinth of the valve plate 97 , It is advantageous only a flat sealing plane on the plates 97 . 101 attached, whereby the post-processing is simplified after a realized, for example, by casting manufacturing process.

The gear actuator pistons can either, as in the 3 to 6 shown in the shift rails 105 to 107 intervene and form the mounting interface here. Alternatively, the shift rails 105 to 107 in the mechatronics module 89 be stored, advantageously together with the gear actuator piston. Then, the engagement of the shift forks in the sliding sleeves of the hybrid transmission is the mounting interface.

The connection between the electric pump actuator 91 and the mechatronics module 89 Preferably takes place via a direct connection, that is, via sealing surfaces between the valve plate 97 and the hydraulic pump of the electric pump actuator 91 , The electric pump actuator 91 is, at least portable, with the mechatronics module 89 connected, so that a full acceptance of the system and a transport in the filled state is possible. A permanent connection of the electric pump actuator 91 Can be done via additional fasteners on the gearbox.

In 5 is the mechatronics module 89 represented by the transmission side. On the transmission side of the mechatronics module 89 are the gear shifters 102 to 104 with the shift rails 105 to 107 arranged. In addition, you can see the clutch piston on the transmission side 109 and the parking lock piston 112 ,

In 6 is the mechatronics module 89 shown from the outside. On the outside are electrical connections 134 from the electric pump actuator 91 to the plug 121 of the sensor module and the valve solenoids 127 to 129 indicated. In addition, the hydraulic connection between the electric pump actuator 91 and the valve plate 97 through the connections 123 to 125 in 6 indicated.

In 7 is a hydraulic actuator 140 shown, the hydraulic actuators 90 out 6 is very similar. To denote the same or similar parts, the same reference numerals are used. To avoid repetition, the preceding description of the 6 directed.

At the in 7 illustrated hydraulic actuators 140 is the electric pump actuator 91 in the valve block 96 integrated. The hydraulic pump of the electric pump actuator 91 is advantageously integrated in the gear plate. So can the local control unit of the electric pump actuator 91 heat technology preferably be arranged outside of the gearbox interior.

LIST OF REFERENCE NUMBERS

1

K0 clutch

2

electric motor

3

Connection of the electric motor to the gearbox

4

input shaft

5

intermediate shaft 1

6

intermediate shaft 2

7

Output shaft with differential gear

8th

Switching element (S H-L)

9

Switching element (S 2-5)

10

Switching element (S 3-6)

20

electromotive pump actuator

21

pump

22

actuator motor

23

control unit

24

pressure sensors

25

Two pressure valve

30

Clutch subsystem

31

K0 clutch

32

slave cylinder

33

Slave travel sensor

45

Gear selector valve

46

Multiplexer switching valve

50

Hybrid powertrain

51

transmission

60

fluidic clutch actuator

70

fluidic transmission actuator

81

gear actuator

82

gear actuator

83

gear actuator

84

gear actuator

85

Multiplexer arrangement

86

actuator

87

actuator

89

Mechatronics module

90

hydraulic actuators

91

electric pump actuator

92

clutch

93

Parksperrenaktor

94

hydraulic line

95

hydraulic line

96

manifold

97

valve plate

98

sealing flange

100

Gear actuator block

101

Gear actuator plate

102

gear actuator

103

gear actuator

104

gear actuator

105

shift rod

106

shift rod

107

shift rod

108

clutch lever

109

clutch piston

110

sensor module

111

Parking brake actuator

112

Parking lock piston

121

plug

123

Low pressure connection

124

High pressure connection

125

High pressure connection

127

valve solenoid

128

valve solenoid

129

valve solenoid

130

intermediate plate

134

electrical connection

140

hydraulic actuators

144

cover

145

poetry

146

poetry

148

Pressure transition point

149

Pressure transition point

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102016217580 B3 [0002]

Claims (10)

Hydraulic power-on-demand actuator system (90; 140) for a hybrid transmission, with gear actuators (81-84; 102-104) and actuators (86,87), characterized in that the gear actuators (81-84; 102-104 ) and the actuators (86,87) are combined together with hydraulic valves (37,45,46) for hydraulically actuating the gear actuators (81-84; 102-104) and actuators (86,87) in a mechatronic module (89). Hydraulic actuators after Claim 1 , characterized in that the mechatronic module (89) comprises a valve block (96) designed as a gear cover with the valves (37, 45, 46). Hydraulic actuators after Claim 2 , characterized in that an electric pump actuator (20; 91) is connected to the valve block (96). Hydraulic actuator system according to one of the preceding claims, characterized in that the mechatronic module (89) comprises a gear actuator block (100) for the gear actuator (81-84,102-104). Hydraulic actuators after Claim 4 , characterized in that a sensor module (110) is integrated in the gear actuator block (100). Hydraulic actuator system according to one of the preceding claims, characterized in that the mechatronic module (89) comprises a clutch piston (109) for actuating a clutch (1; 31; 92). Hydraulic actuators after Claim 6 , characterized in that the clutch piston (109) in one or the gear actuator block (100) is arranged. Hydraulic actuator system according to one of the preceding claims, characterized in that the mechatronic module (89) comprises a parking brake piston (112) for actuating a parking brake. Hydraulic actuators after Claim 8 , characterized in that the parking brake piston (112) is arranged perpendicular to one or the gear actuator block (100). Hydraulic actuators after Claim 8 or 9 , characterized in that the parking lock piston (112) is arranged both in the valve block (96) and in the gear actuator block (100) and in a, the separation point between the valve block (96) and gear actuator block (100) passing through cylinder is guided.

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