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ZF Friedrichshafen AG Patents
Assignee:
ZF Friedrichshafen AG
Address:
Friedrichshafen, DE
No. of patents:
1216
Patents:












Patent Number Title Of Patent Date Issued
RE43315 Multi-step gear April 17, 2012
The invention concerns a multi-step transmission with at least 7 forward gears, with which transmission on the input drive shaft (1), two non-shiftable input-side gear sets (RS1, RS2) are provided, which, on their output-side produce two speeds of rotation (n1, n2), which, besides th
RE39960 Automatic transmission for motor vehicles December 25, 2007
The invention concerns a transmission (1) with automatic shifting capabilities and with three spider supported planetary sets (2, 3, 4), three brakes (5, 6, 7), and two clutches (8, 9) for the shifting of six forward moving gears and one reverse gear and having an input shaft (10) an
8589005 Method for operating a drive train November 19, 2013
A method of operating a drive train of a motor vehicle which includes at least an electric machine, as a drive aggregate, and a transmission which is positioned between the drive aggregate and an output, and a starting element positioned between the electric machine and the transmission.
8585522 Drive train and method for operating the drive train November 19, 2013
A drive train with a combustion engine, electric machine, and a transmission with first and second partial transmissions. The electric machine is coupled via a planetary transmission to input shafts of the first and second partial transmissions. The combustion engine can be coupled,
8584609 Tapered tunnel for tunnel thrusters November 19, 2013
A tunnel thruster system for a vessel. The tunnel thruster system includes a thruster propulsion mechanism including a drive unit driving a transmission and propeller assembly located within a thruster tunnel. The thruster tunnel comprising a propeller section, first and second tapered
8583334 Determination method for actuation touch point pressure value of a friction shift element November 12, 2013
A method of determining an applied actuation touch point pressure value of a frictionally engaged shift element of a transmission at which transmission, via the shift element, is approximately zero, and an increase in pressure relates to an increase of the power transmission via the
8581601 Rotation angle sensor or length sensor November 12, 2013
A rotation angle sensor with two or more oscillators which comprises, in each case, striplines fixed on a dielectric support, as sensor elements, such that the oscillators are arrayed in a curve, for angle measurement, or they are arrayed in a straight line, for position measurement. One
8579761 Gearshift control method for a motor vehicle November 12, 2013
A gearshift control method for a motor vehicle whose drive train comprises a turbo-charged combustion engine, a startup clutch and a shift clutch and an automatic stepped transmission, in which drive engine torque deficiencies, that occur during the build-up of load at the end of a t
8579618 Internal gear pump with optimized noise behaviour November 12, 2013
An internal gear pump (1) is proposed for conveying a fluid by a driven pump gear wheel (3) and a ring gear (4), as a gear pair residing in an enclosure, which are, for instance, meshing and hereby generating a sealed area. Hereby, viewed cross-sectionally, a sickle shaped part (5) i
8579099 Parking interlock device for an automotive transmission November 12, 2013
A transmission parking lock device having a gearwheel with teeth and gaps and a pawl having a pawl tooth. The gearwheel rotates and the pawl pivots about axes that are parallel to each other. The gearwheel teeth each have a first contour and tooth flanks with respect to rotation of the
8579098 Parking lock device for an automatic transmission of a motor vehicle November 12, 2013
A parking lock device (1) for an automatic transmission of a motor vehicle. The parking lock device (1) comprises a locking pawl (3) that is fixed to the transmission housing and mounted so that the locking pawl (3) can pivot. The parking lock device (1) has a guiding element (3b) and
8578809 Shifting device for a variable speed motor vehicle transmission November 12, 2013
A shifting device (11, 40) with a servo-assistance mechanism (10), in particular for a transmission (30) of a motor vehicle which comprises an assembly for selecting and engaging a gear of the transmission (30) and an element (20) upon which acts a manual shifting force to be assisted.
8578801 Load-shiftable parallel shift transmission and double clutch transmission November 12, 2013
A power shift parallel shift transmission with parallel torque transmission branches, the input sides of which have an intermediate element which can be connected by an associated power shift element to a common input element, and the output sides of which can be connected by drive o
8577523 Method for verifying the toe angle of a ship's rudders November 5, 2013
A method of checking a toe angle of at least one port rudder (1) and at least one starboard rudder (2) of a ship, which are electronically adjusted via a control device, such that different toe angles are set for the at least one port rudder (1) and the at least one starboard rudder
8574124 Control unit and method to operate a vehicle November 5, 2013
A control unit of a motor vehicle for activating a form-locking shift element of a transmission of the motor vehicle in such a way that a defined rotational speed difference is defined, between an input-side component of the form-locking shift element and an output-side component of
8574114 10-gear automatic transmission November 5, 2013
The invention concerns an automatic transmission of planetary structure, comprising a drive input shaft (AN), a drive output shaft (AB), first, second, third and fourth planetary gear sets (RS1, RS2, RS3, RS4) and six shifting element (A, B, C, D, E, F). By the selective engagement of th
8573877 Ball pin and ball joint November 5, 2013
A ball joint with a ball pin and a steel ball pin with a joint ball. The ball joint and ball pin are suitable for use when solid-on-solid friction predominates, for example under high static pre-loading or under high operational loads and with small joint movements. At least in a bearing
8573378 Parking lock device for motor vehicle November 5, 2013
A parking lock device for a motor vehicle transmission which comprises a transmission housing, a locking pawl mounted by a bolt to swivel on the housing and loaded by a restoring spring, a guide plate supported on the housing, and a locking element by which, in the engaged condition, the
8573376 Motor vehicle gearbox with a hydrodynamic retarder November 5, 2013
A motor vehicle gearbox having a hydrodynamic retarder (12) and at least one connection (23) for a power take-off drive. The retarder (12) can be driven by an output shaft (5) of the gearbox (1) via a spur gear stage (11) having a drive gear (9) and an output gear (10). The drive gear (9
8571756 Wheel suspension for a vehicle October 29, 2013
Wheel suspension for vehicle, with support, steering knuckle connected in articulated manner with the support via interconnected joints, a vehicle wheel rotatably supported on the steering knuckle, a connecting element extending between a first joint and a second joint which is connected
8565988 Method for controlling a drive train of a motor vehicle October 22, 2013
A method of controlling a drivetrain of a vehicle in which the drivetrain comprises a motor, a transmission with starting gears and a clutch located between the motor and transmission, a manual shift lever, and a control unit, for controlling the transmission and clutch, that communi
8562881 Fibre composite profile component and process and apparatus for continuous production October 22, 2013
A process for continuous production of profile components of fiber composite material by a forming chain system, an associated profile component and the chain system for its continuous production. The method draws on the forming chain system having at least one forming chain. Here, p
8561493 Automated multi-group transmission of a motor vehicle and method for operating an automated mult October 22, 2013
An automated multi-group transmission of a motor vehicle comprises at least two gearing groups successively disposed in a power flow of a drive train, a clutch assembly having at least one start-up clutch, by which a connection can be established between a drive shaft of a drive motor an
8301349 Use of gradient road resistance strategies October 30, 2012
A control method and system for a vehicle transmission that incorporates gradient road resistance in selecting an appropriate gear ratio for an automatic manual transmission or an automatic transmission are disclosed. The traction resistance of a vehicle is calculated in order to determi
8297600 Plastic spring for a motor vehicle chassis October 30, 2012
A plastic spring having a corrugated tubular body with connection surfaces at its ends for transmitting force between two structural component parts which are movable relative to one another. A connection surface of the plastic spring is constructed as a tubular body which engages in
8292779 Method for operating a drive train October 23, 2012
A method of operating a drive train having a hybrid drive that comprises an internal combustion engine and an electric machine, a clutch connected between the combustion engine and electric machine, a transmission connected between the electric machine and an output drive, and a star
8290667 Method for the operation of a traveling power take-off shaft coupled to a driving motor October 16, 2012
A method for the operation of a traveling power take-off shaft clutch connected to a drive motor, in a case of known wheel or vehicle speed, the speed of rotation of the power take-off shaft, electronically evaluated through the speed of rotation of the motor, can be made to agree in
8290655 Hybrid drive motor vehicle control system comprising distributed functional components for contr October 16, 2012
A control system for controlling a vehicle with a hybrid drive comprising an internal combustion engine and an electric motor and a plurality of functional components each divided into strategy, control and actuator sub-components. The functional components include engine, transmission
8289718 Connector assembly for electrical and mechanical interconnection of modules October 16, 2012
A connector for electrical and mechanical interconnection of first and second mechanically adjacent modules with one another. The first module includes a first electrical connector and an alignment pin and the second module includes a printed circuit board floatingly and displacably
8287414 Transmission device having a variator October 16, 2012
A continuously variable transmission device comprising a variator and a secondary power splitting. For power splitting, a planetary gear set has a first shaft coupled to the transmission input, a second shaft of the gear set coupled a first shaft of the variator, and a third shaft of the
8286532 Transmission control and method for mounting a transmission control October 16, 2012
A transmission control having an electronic control unit (17), at least one mechatronic component (19, 20, 21), and a housing (2) comprising an upper housing part (3), a lower housing part (5), and a central housing part (4). These housing parts together form at least one receiving space
8282528 Method for controlling a compressed air supply of an internal combustion engine during a startin October 9, 2012
A method of operating a vehicle drive train (1) comprising a combustion engine (2), a turbo charger (22) assigned to the combustion engine, a mechanism for the injection of additional compressed air into an air intake system (8) of the combustion engine (2), a start and shift clutch
8282524 Transmission device for distributing a drive torque to at least two output shafts October 9, 2012
A transmission device is proposed for distributing a drive torque to at least two output shafts (Ab1, Ab2), comprising a differential (2) that is permanently connected to the output shafts (Ab1, Ab2), wherein a double planetary gearset (4) is provided co-axially to the output (Ab2) betwe
8282305 Ball sleeve joint and process for manufacturing same October 9, 2012
A ball sleeve joint is provided, especially for chassis assembly units and steering assembly units of motor vehicles. The ball sleeve joint includes a joint housing with two housing halves and a ball sleeve provided with a rounded bearing surface. The bearing surface is accommodated
8272993 Method for carrying out a load shift in vehicles with electric drive September 25, 2012
A method of carrying out a shift under load in either an electric vehicle which has a change-under-load transmission or a hybrid vehicle which has a hybrid transmission while the vehicle is operating in a purely electrical mode. The speed adaptation of the electric machine, which is
8272992 Method for operating a drive train September 25, 2012
A process of operating a motor vehicle drive train that comprises at least one hybrid drive having a combustion engine and an electric motor with a clutch connected between the combustion engine and the electric motor, and an automatic transmission is arranged between the hybrid drive
8272989 Variable ratio transmission for distributing a drive torque to at least two output shafts September 25, 2012
A variable-ratio transmission for distributing a drive torque to at least two drive output shafts (8, 9), comprising a conventional differential (1) is proposed, which comprises an electric motor (5) for distributing the drive torque directly between the drive output shafts (8, 9) and a
8272490 Arrangement of a disk spring at a piston of a switching element September 25, 2012
An arrangement of a disk spring (2) at a piston (1) of a shifting element (3) in which the fingers of the disk spring (2) protrude through crests in the housing (4) and abut against a sheet metal sleeve (5) which is held in the housing (4) of the shifting element (3). The disk spring (2)
8272287 Device for latching and locking shift rockers of a shift device of a transmission, and use of a September 25, 2012
A device for latching and locking of shift rockers (1, 1') of a shift device of a transmission. The device has a lock part (3, 3'), for each shift rocker (1, 1'), which resides in a receptacle (2) of the shift rocker (1, 1'), which interacts with a lock contour (5, 5'), positioned in
8271171 Clutch characteristic adaption method for automatic dual clutch transmission September 18, 2012
A method for clutch characteristic curve adaptation of an automatic dual-clutch transmission which comprises two sub-gearboxes each with an input shaft connected, via a friction clutch, to the drive shaft of a motor and several gears that are shifted via a friction-synchronized gear
8271166 Device and method for controlling an automatic transmission in a motor vehicle September 18, 2012
A device and a method for control of an automatic transmission (1) in a vehicle having one control unit (2), which can receive signals produced by a transmission gearshift lever (7), and/or a first transmission control (8). The signals of the first transmission control are bridgeable
8267208 Drive unit for a hybrid vehicle and method of assembly September 18, 2012
A drive unit for a hybrid vehicle includes an internal combustion engine with a crankshaft, a friction clutch with a pressure plate, which can be moved in the axial direction by an actuating arrangement, with a clutch plate, and with a clutch disk arrangement, positioned between these fi
8266985 Device for reducing the drop in tractive force September 18, 2012
A device for reducing the drop in tractive force during the gear shifting phase of an automatic transmission comprising an automatically actuated drive clutch. The device comprises a rotary storage device that can be coupled, if necessary via two transmission ratio steps (4, 5) that are
8262538 Transmission device and method for operating a transmission device September 11, 2012
A transmission device with at least two multi-gear transmission groups. Torque is introduced via a input shaft into the transmission groups and into the other transmission group via a main shaft. The input shaft is directly connected with the main shaft via a shifting element during a
8262534 Transmission device with at least one planetary gearset and a frictional shift element September 11, 2012
A transmission device (1) having at least one planetary gearset (2) and at least one frictional shift element (3) by which a ring gear (4), of the planetary gearset (2), can be connected to a component (5) that is fixed to a transmission housing. The ring gear (4) of the planetary ge
8262530 Power-branched transmission September 11, 2012
A power-branched transmission for an agricultural vehicle is configured as a power-branched transmission having a secondary coupling. The transmission comprises a summation planetary gear set (5), the planetary gear of which are configured as a double planetary gear (8).
8262525 Hydrostatic-mechanical power split transmission September 11, 2012
A hydrostatic-mechanical power split transmission with at least two continuous operating ranges for use in agricultural and construction machines. The transmission has a summation planetary gear and a clutch for forward drive (7) and a clutch for reverse drive (6) that are arranged u
8257223 Method for carrying out a shift during hybrid operation in a parallel hybrid vehicle September 4, 2012
A method of carrying out a shift with traction force interruption during hybrid operation in a parallel hybrid vehicle having an automated transmission. The method comprises the steps of maintaining the coupling between the internal combustion engine (1) and the electric machine (2),
8257218 Multi-speed transmission September 4, 2012
A multi-speed automatic transmission of a planetary design for a motor vehicle, the transmission comprises an input shaft and an output shaft; first, second, third and fourth planetary gear sets; and at least third, fourth, fifth, sixth, seventh and eighth rotatable shafts and first and
8257215 Multi-speed planetary coupling gear September 4, 2012
A multi-speed planetary coupling transmission (3) which includes a plurality of planetary gear sets (4, 5, 6) and a plurality of shifting elements (A, B, D, E). Depending on actuation of the shifting elements (A, B, D, E), various gear ratios can be achieved by the transmission. At l

 
 
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