Patents by Inventor Otto Ebner
Otto Ebner has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7967723Abstract: A method and a apparatus for operating an automatic synchronized transmission for motor vehicles. The transmission having a countershaft design, with a countershaft parallel to input and an output shafts, which communicate with each other and the countershaft by means of gear wheel pairs. The transmission further having at least one coupling and synchronization device for at least one idler gear, with the aid of which at least one idler gear can be rotationally fixed to a transmission shaft, such that when the motor vehicle is stationary and a starting gear is engaged, torque of the countershaft is not drive-effectively reduced. Thus, ensuring that when the starting gear is engaged, no undesired acceleration of the vehicle occurs.Type: GrantFiled: July 15, 2005Date of Patent: June 28, 2011Assignee: ZF Friedrichshafen AGInventors: Otto Ebner, Thomas Jäger, Florian Schneider
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Patent number: 7474950Abstract: A method is proposed for determining a clutch application point in a transmission of a vehicle having a spring-actuated clutch system in which the clutch application point is adapted according to at least one adequate regulated quantity of the clutch system.Type: GrantFiled: December 17, 2002Date of Patent: January 6, 2009Assignee: ZF Friedrichshafen AGInventors: Andreas Schwenger, Otto Ebner, Klaus Schweiger, Matthias Winkel, Christoph Rüchardt, Marcus Gansohr, Thomas Knoblauch
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Publication number: 20080275614Abstract: A method is proposed for determining a clutch application point in a transmission of a vehicle having a spring-actuated clutch system in which the clutch application point is adapted according to at least one adequate regulated quantity of the clutch system.Type: ApplicationFiled: July 18, 2008Publication date: November 6, 2008Applicant: ZF FRIEDRICHSHAFEN AGInventors: Andreas SCHWENGER, Otto EBNER, Klaus SCHWEIGER, Matthias WINKEL, Christoph RUCHARDT, Marcus GANSOHR, Thomas KNOBLAUCH
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Patent number: 7419456Abstract: A known device for increasing the functional reliability for a hydraulic circuit of a hydraulic clutch having a pressure reservoir (25) and a release cylinder (5) which comprises a primary piston (14) and a secondary piston (16). A compensation volume is developed in the sense that when the vehicle is at a standstill and the parking brake released, an unintentional release of the clutch is prevented. A pressure-monitoring/pressure-supply device (28) is used for determining a reference operating pressure and establishes a static pressure which, in case of any system error, only allows displacement of the secondary piston (16) such that the contact pressure of the clutch discs, against one another, is still sufficient to maintain the vehicle at a standstill.Type: GrantFiled: November 26, 2003Date of Patent: September 2, 2008Assignee: ZF Friedrichshafen AGInventors: Thomas Knoblauch, Christoph Rüchardt, Otto Ebner, Klaus Schweiger, Matthias Winkel, Andreas Schwenger, Marcus Gansohr
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Publication number: 20080045380Abstract: A method and a apparatus for operating an automatic synchronized transmission for motor vehicles. The transmission having a countershaft design, with a countershaft parallel to input and an output shafts, which communicate with each other and the countershaft by means of gear wheel pairs. The transmission further having at least one coupling and synchronization device for at least one idler gear, with the aid of which at least one idler gear can be rotationally fixed to a transmission shaft, such that when the motor vehicle is stationary and a starting gear is engaged, torque of the countershaft is not drive-effectively reduced. Thus, ensuring that when the starting gear is engaged, no undesired acceleration of the vehicle occurs.Type: ApplicationFiled: July 15, 2005Publication date: February 21, 2008Applicant: ZF Friedrichshafen AGInventors: Otto Ebner, Thomas Jager, Florian Schneider
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Patent number: 7169081Abstract: A method for clutch actuation at low temperatures for a motor vehicle having a hydraulically actuatable clutch, below a predetermined temperature a situation-dependent pre-opening of the clutch is executed when a braking is probable.Type: GrantFiled: August 30, 2002Date of Patent: January 30, 2007Assignee: ZF Friedrichshafen AGInventors: Matthias Winkel, Otto Ebner, Klaus Schweiger, Christoph Rüchardt, Andreas Schwenger, Marcus Gansohr, Thomas Knoblauch
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Patent number: 7159399Abstract: A device for rendering a hydraulic actuating device operational. A motor vehicle clutch with an emitter-receiver system located in the transmission path of the actuating device comprising two pistons whose positions, relative to one another, can vary as a function of the desired operating behavior of the actuating device and is developed further such that in relation to the emitter-receiver system that is to be filled with fluid, operationality can be established comparatively quickly and by simple way. A fluid supply unit (24) comprises one impulse valve (25) that serves to release an essentially constant volume flow, acted upon by an impulse valve control device (26) which is constructed such that the fluid volume flow released by the fluid supply unit (24) and flowing into the emitter-receiver system (5) does not exceed a limiting volume flow QK.Type: GrantFiled: November 8, 2003Date of Patent: January 9, 2007Assignee: ZF Friedrichshafen AGInventors: Andreas Schwenger, Otto Ebner, Klaus Schweiger, Christoph Rüchardt, Marcus Gansohr
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Publication number: 20060116237Abstract: A known device for increasing the functional reliability for a hydraulic circuit of a hydraulic clutch having one pressure reservoir and one release cylinder which comprises a primary piston, a secondary piston and a compensation volume is to be further developed in the sense that when the vehicle is at a standstill and the parking brake released, an unintentional release of the clutch is prevented. According to the invention there is used for the purpose a pressure-monitoring/pressure-supply device (28) which determines a reference operating pressure and establishes a static pressure which in case of system errors allows only a displacement of the secondary piston (16) such that the contact pressure of the clutch discs against each other is still sufficient to hold the vehicle at a standstill.Type: ApplicationFiled: November 26, 2003Publication date: June 1, 2006Inventors: Thomas Knoblauch, Christoph Ruchardt, Otto Ebner, Klaus Schweiger, Matthias Winkel, Andreas Schwenger, Marcus Gansohr
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Patent number: 7003429Abstract: An operating time is determined by an approximation method within the scope of the method for determining the actual operating time of a hydraulic, electrohydraulic or electric component of a motor vehicle or of a working machine within a reference time or a monitoring period.Type: GrantFiled: December 10, 2002Date of Patent: February 21, 2006Assignee: ZF Friedrichshafen AGInventors: Marcus Gansohr, Otto Ebner, Klaus Schweiger, Matthias Winkel, Christoph Rüchardt, Andreas Schwenger, Thomas Knoblauch
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Publication number: 20050279087Abstract: A device for rendering a hydraulic actuating device operational. A motor vehicle clutch with an emitter-receiver system located in the transmission path of the actuating device comprising two pistons whose positions, relative to one another, can vary as a function of the desired operating behavior of the actuating device and is developed further such that in relation to the emitter-receiver system that is to be filled with fluid, operationality can be established comparatively quickly and by simple way. A fluid supply unit (24) comprises one impulse valve (25) that serves to release an essentially constant volume flow, acted upon by an impulse valve control device (26) which is constructed such that the fluid volume flow released by the fluid supply unit (24) and flowing into the emitter-receiver system (5) does not exceed a limiting volume flow QK.Type: ApplicationFiled: November 8, 2003Publication date: December 22, 2005Inventors: Andreas Schwenger, Otto Ebner, Klaus Schweiger, Christoph Ruchardt, Marcus Gansohr
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Publication number: 20050051408Abstract: A method is proposed for determining a clutch application point in a transmission of a vehicle having a spring-actuated clutch system in which the clutch application point is adapted according to at least one adequate regulated quantity of the clutch system.Type: ApplicationFiled: December 17, 2002Publication date: March 10, 2005Inventors: Andreas Schwenger, Otto Ebner, Klaus Schweiger, Matthias Winkel, Christoph Ruchardt, Marcus Gansohr, Thomas Knoblauch
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Publication number: 20050033552Abstract: An actual operating time is determined by an approximation method within the scope of the method for determining the actual operating time of a hydraulic, electrohydraulic or electric component of a motor vehicle or of a working machine within a reference time or a monitoring period.Type: ApplicationFiled: December 10, 2002Publication date: February 10, 2005Inventors: Marcus Gansohr, Otto Ebner, Klaus Schweiger, Matthias Winkel, Christoph Ruchardt, Andreas Schwenger, Thomas Knoblauch
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Publication number: 20050002796Abstract: The invention relates to a method for controlling a pressure supply device in a hydraulic circuit, especially in a hydraulic circuit in an automatic gearbox which comprises an hydraulic pump, a pressure control valve and a consumer. The hydraulic pump is controlled if the system pressure falls below a specific lower threshold value and is switched off if a specific higher threshold value of the system pressure is reached or exceeded. In the data on the system pressure is not available, the current system pressure is calculated.Type: ApplicationFiled: November 29, 2002Publication date: January 6, 2005Inventors: Thomas Knoblauch, Otto Ebner, Klaus Schweiger, Matthias Winkel, Christoph Rüchardt, Andreas Schwenger, Marcus Gansohr
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Publication number: 20040235618Abstract: A method for clutch actuation at low temperatures for a motor vehicle having a hydraulically actuatable clutch, below a predetermined temperature a situation-dependent pre-opening of the clutch is executed when a braking is probable.Type: ApplicationFiled: March 16, 2004Publication date: November 25, 2004Inventors: Matthias Winkel, Otto Ebner, Klaus Schweiger, Christoph Ruchardt, Andreas Schwenger, Marcus Gansohr, Thomas Knoblauch
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Patent number: 4807489Abstract: A gear shift device e.g. for a six-speed automotive speed change transmission with a gear shift lever for selection and shifting of all gears and with shift rails for the shifting of gears in one shift path has an H-shaped shift pattern similar to a four-speed transmission and has means for fixing or returning of a central selection and shift shaft or rotating shaft and/or the gear-shift lever into predetermined shift paths, e.g. the gears 3/4, where for the shift path of the gears 5/6 a retention device is provided additionally, which upon completed or nearly completed shift into the next higher, that is sixth gear, retains the central selection and shift shaft or the rotating shaft and/or the gear-shift lever in this shift path and upon completed or nearly completed shift into the next lower, that is fifth gear, permits the return of the central selector and shift shaft or the rotating shaft and/or the gear-shift lever into a lower shift path, e.g.Type: GrantFiled: March 21, 1986Date of Patent: February 28, 1989Assignee: Zahnradfabrik Friedrichshafen AGInventors: Friedrich Schreiner, Otto Ebner, Gerhard Buri, Bernhard Grupp
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Patent number: 4753332Abstract: A start and shift clutch arrangement for motor vehicles with a disk clutch which during the sliding or friction generating phase is supplied with lubricating and cooling oil, and which runs dry when fully engaged or disengaged. The disk clutch is flooded in the area of the outer disks, whereby the maximum filling is limited by a first standpipe, and rapid emptying takes place via a second standpipe in conjunction with a control valve. Particularly advantageous is a self-contained lubricating system, which fills the clutch space during the sliding phase via an oil reservoir and an accumulator by a timed solenoid valve, utilizing compressed air. The accumulator equipped with a piston effects thereby alternately its own filling, and that of the clutch space.Type: GrantFiled: October 15, 1986Date of Patent: June 28, 1988Assignee: Zahnradfabrik Friedrichshafen AGInventors: Gerold Bieber, Otto Ebner