Patent application number | Description | Published |
20130092273 | DEVICE FOR STORING HYDRAULIC FLUID - A device for storing fluid, of a transmission hydraulic system, having at least one storage chamber that is defined by a housing and a delimiting device, which can be connected with the hydraulic system. The volume of the chamber depends on operation of the delimiting device and/or the housing. The delimiting device and/or housing can be set such that the storage chamber has a defined volume, in opposition to a restoring effort of the housing and/or delimiting device, starting from an operating condition which differs from the operating condition equivalent to the minimum volume of the storage chamber toward their operating condition equivalent to the minimum storage chamber volume. When the holding device is actuated, the operating conditions of the delimiting device and/or the housing assembly vary between operating conditions in which the storage chamber volume is either a maximum or corresponds to the defined storage chamber volume. | 04-18-2013 |
20130094948 | INTAKE CHARGED PUMP FOR DELIVERING A LIQUID - An intake charged pump for pumping liquid and which has an intake duct that extends to the suction area of the pump. The pump has a duct through which a jet stream flows to the suction area. A nozzle arrangement in the intake duct accelerates the liquid which is returned via the jet stream and supports the suction of a suction stream of the liquid from a storage container. A nozzle of the nozzle arrangement leads into the mixing chamber at an acute angle in a such way that the jet stream, leaving the nozzle, creates a common mixing stream with the suction stream from the storage container, and through which partial streams having essentially the same pressure and energy content, can be delivered to the front and back suction pockets of the double chamber pump. | 04-18-2013 |
20130099147 | VALVE DEVICE WITH A VALVE HOUSING HAVING MULTIPLE SHIFT TONGUES - A valve device which comprises a valve housing having a plurality of shifting tongues and a valve slide that can move longitudinally in the valve housing. The valve slide is made with diameter sections which co-operate with the shifting tongues depending on an axial position of the valve slide. At least one of the diameter sections is made with at least one, at least approximately groove-like recess that extends in the circumferential direction of the valve slide. The groove-like recesses are functionally connected to an axial bore extending in the valve slide essentially in the axial direction, by way of at least one radial bore extending at least approximately in the radial direction in the valve slide. | 04-25-2013 |
20130102429 | METHOD FOR OPERATING A DRIVE TRAIN OF A HYBRID VEHICLE - A method for operating a hybrid vehicle drive-train having an engine, electric machine, transmission and a planetary gearset comprising ring, sun and carrier elements. A first planetary element is coupled to a transmission input shaft, a second planetary element is coupled to the electric machine, and a first clutch couples a third planetary element to the engine while a second clutch couples two of the three elements. When the second clutch is disengaged, the drive-train operates in a first mode while, when the second clutch is engaged, the drive-train operates in a second mode. When starting up or crawling, to change from first to second mode while maintaining traction force at the output, the second clutch engages to reduce the transmission capacity of the first clutch until slip occurs, then the engine speed is regulated, while synchronizing the second clutch, after which the second clutch engages without any load. | 04-25-2013 |
20130118857 | CENTRIFUGAL UNIT AND CLUTCH - A centrifugal unit for a clutch of a motor vehicle includes a first structural component part, a second structural component part which is coupled to the first structural component part so as to be fixed with respect to rotation relative to it. The first structural component part and the second structural component part are constructed in such a way that, when a limiting rotational speed is exceeded, a distance between the first structural component part and second structural component part increases along an axial direction, and a return spring element which causes a force between the first structural component part and second structural component part in such a way that the distance between the first structural component part and second structural component part adopts a neutral value when the centrifugal unit is at a standstill. The second structural component part is constructed so as to furnish a mechanical connection to a clutch disk of the clutch for transmitting a torque. The first structural component part is formed so as to contact or be brought into contact with a pressing force-generating element of the clutch. | 05-16-2013 |
20130123053 | ARRANGEMENT FOR LUBE OIL SUPPLY A CHAIN DRIVE DRIVING A TRANSMISSION OIL PUMP ARRANGED OFFSET THE AXIS OF A TORQUE CONVERTER - An arrangement for supplying oil to a chain drive which drives a transmission oil pump that is axially offset relative to a torque converter and embedded in an intermediate plate in a vehicle having a torque converter. The driven sprocket of the chain drive is supported by a converter neck mounted in a centering plate. A seal is provided between the converter neck and the sprocket and is arranged adjacent the sliding fit between the converter neck and the sprocket. To compensate for the suppression of lubrication of the seal, the neck bearing and the chain drive, a valve is integrated in the intermediate plate, and a duct is provided in the plane, in which the centering plate is screwed to the intermediate plate, such that excess oil flowing from the valve is selectively directed to the seal, the neck bearing and the chain drive. | 05-16-2013 |
20130123060 | MULTI-SPEED TRANSMISSION - The 8-speed transmission which comprises an input shaft (AN), an output shaft (AB), four planetary gearsets (RS | 05-16-2013 |
20130125852 | Guide Pin for a Starting Element - A starting element has a housing ( | 05-23-2013 |
20130126766 | HYDRAULIC VALVE SYSTEM FOR ACTUATING AT LEAST ONE SHIFTING ELEMENT OF A TRANSMISSION - A valve device ( | 05-23-2013 |
20130133412 | METHOD OF MANUFACTURING A MOLDED SENSOR SUBASSEMBLY - A method of producing an insert molded sensor assembly having at least one sensor element accommodated on a first side of a circuit board of the sensor assembly. During a first step, a plurality of pins are introduced and penetrate through the circuit board. The circuit board, including the at least one sensor element, is then disposed, during a second step, into a two-part insert mold tool so that the pins are supported on both sides of the circuit board in a direction transverse to a plane defined by the circuit board. A defined spacing distance, between a surface of the sensor element and the insert mold tool, is produced by the pins. During a third step of the method, the insert mold tool is filled with insert molding material, particularly a duroplast. | 05-30-2013 |
20130133451 | VEHICULAR TRANSMISSION WITH POWER TAKE-OFF UNIT - A transmission, for a motor vehicle with an auxiliary drive (EM), having a first housing part ( | 05-30-2013 |
20130133767 | PRESSURE CONTROL VALVE DEVICE - A pressure-control valve device for a fluid, having at least one inlet area and first and second outlet areas that can be flow-connected to one another by two seat valves coupled to one another, in which a fluid flow from the inlet area to the first and second outlet areas can be adjusted by the first seat valve and a fluid flow between the first and second outlet areas can be adjusted by the second seat valve. The first seat valve is designed as a valve aperture with a valve opening and a valve control edge and with a ball-shaped closing element that co-operates with the valve control edge. The valve opening and the ball-shaped closing element are designed such that the ratio of the diameter of the valve opening to the diameter of the ball-shaped closing element is equal to at least 0.75. | 05-30-2013 |
20130134007 | DOUBLE-CLUTCH TRANSMISSION OF A VEHICLE - A double clutch transmission of a vehicle having an internal combustion engine and a clutch chamber ( | 05-30-2013 |
20130138308 | CONTROL DEVICE OF A VEHICLE - A control device of a motor vehicle for controlling a gear change in a transmission of the motor vehicle by generating control signals for transmission shift elements utilized during a gear change. If a gear increment of the gear change to be performed is greater than two gears, and/or if the driver activates a sport gear shift program, and/or if a detection device detects a sporty type of driver, and/or if the driver actuates a kickdown of an accelerator pedal, and/or if the driver actuates the accelerator pedal with a temporal gradient that is greater than a defined limit, the control device generates control signals for the shift elements, being utilized for performing the gear change, with an interruption of tractive force, and the control device, in all other instances, generates control signals for the shift elements, being utilized for performing the gear change, without interrupting the tractive force. | 05-30-2013 |
20130150199 | PUMP UNIT WITH A PUMP AND A HYBRID DRIVE - The pump unit has a pump and a hybrid drive. The pump comprises a pump housing and a pump shaft. The hybrid drive comprises an electric motor and a driveshaft connection to a driveshaft. The electric motor and the driveshaft connection are each in driving mechanical functional connection with the pump shaft by way of a planetary gearset for driving the pump shaft. A stator of the electric motor is at least partially integrated in the pump housing. A rotor of the electric motor is mechanically connected fixed to a sun gear of the planetary gearset. The driveshaft connection is mechanically connected fixed to a ring gear of the planetary gearset. The pump shaft is mechanically connected fixed to a planetary carrier of the planetary gearset. | 06-13-2013 |
20130151094 | LINE PRESSURE CONTROL METHOD FOR A TRANSMISSION HAVING A DOG CLUTCH - A method of controlling the system pressure in an automatic transmission having interlocking shifting elements in which, during shifts and gear engagement and gear disengagement processes involving interlocking shifting elements, as a function of the engagement and disengagement times of the interlocking shifting elements involved and the shift conditions of the frictional shifting elements involved, the system pressure is increased to an elevated pressure that enables rapid engagement or disengagement of the interlocking shifting elements, in such manner that the system pressure is increased in at least two phases whose timing depends on the shift conditions of at least one of the shifting elements involved. | 06-13-2013 |
20130154432 | Stator Of An Electric Machine With Voltage Insulation - A stator of a rotating electric machine includes a circular stator lamination stack having stator teeth projecting radially therefrom and distributed over the circumference and axial slots formed between the teeth. The stator carries a winding of an insulated conductor which is designed for the application of a maximum electric voltage in the low-voltage range up to about 1 kV. The winding is constructed as concentric winding in the form of individual tooth coils, and voltage insulating material is provided inside the slots between the teeth and the winding. To reduce the electric field strength in manufacture-induced voids of the varnish-impregnated or resin-impregnated stator, the voltage insulating material comprises an areally shaped layer of a high-resistance conductive material. | 06-20-2013 |
20130158825 | METHOD AND DEVICE FOR DETERMINATION A TOUCH POINT OF A FRICTION CLUTCH - A method of determining a touch-point of a friction clutch of a motor vehicle that is relevant for control purposes such that a current, actual touch-point of the friction clutch is determined adaptively, and such that the current touch-point is modified, with a correction value that depends on the elasticity of the friction clutch, in order to determine the control-relevant touch-point. The control device comprises elements for carrying out the method. | 06-20-2013 |
20130174722 | HYDRAULICAL SHIFTING DEVICE FOR AN AUTOMATIC TRANSMISSION - A hydraulic shifting device for an automatic transmission for engaging and disengaging a parking lock. The shifting device comprises a parking lock cylinder ( | 07-11-2013 |
20130178333 | METHOD FOR OPERATING A TRANSMISSION UNIT OF A VEHICLE DRIVELINE WITH AN ENGINE - A method for operating a transmission of a vehicle drivetrain. A transmission ratio can be automatically changed during an operating state depending on a comparison of current operating state parameters with operating parameters stored in a control unit, and can be manually changed depending on a driver's request. Accordingly when the driver requests a change of the transmission ratio, the transmission ratio changes, and a timer starts. If the driver continues the ratio change from an actual transmission ratio value toward a larger or smaller transmission ratio value, the current operating parameters are compared with the stored operating parameters. Upon this comparison, the transmission shifts to higher ratios in comparison to the operating parameters stored in a control device at higher vehicle speeds, and/or a delay between sequential, cyclical transmission ratio changes varies depending on a vehicle deceleration and/or braking pressure in the region of a vehicle brake. | 07-11-2013 |
20130196818 | METHOD FOR CHECKING AN EMERGENCY CONDITION IN A TRANSMISSION SYSTEM - A method of monitoring an emergency condition in an automatic transmission, with which, by comparing a theoretical with an actual rotational speed, measured on the transmission input side, overlap of the activated emergency condition, with a gear engagement process called for during the normal condition, is prevented. | 08-01-2013 |