Patents by Inventor Jorg Arnold
Jorg Arnold 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: 11953716Abstract: The present disclosure relates to a spacer for an assembly of a backlight of a display. The disclosure additionally relates to an assembly for a backlight of a display having such a spacer, and to a display having a backlight having such an assembly. The spacer comprises at least one crosspiece. The crosspiece in this case has attachment surfaces for attachment of a first light guide and a second light guide and a receptacle for a sheet stack.Type: GrantFiled: May 5, 2022Date of Patent: April 9, 2024Assignee: Continental Automotive GmbHInventors: Sait Kalender, Jörg Thomas, Oliver Jakoby, Nils Arnold
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Publication number: 20230046052Abstract: The invention relates to the actuation of a converter lock-up clutch (44) of a hydrodynamic torque converter (4) in a vehicle drive-train by means of a safety function where, in addition to a driving strategy function, the safety function can actuate the converter lock-up clutch (44) by issuing a clutch actuation command. For this purpose, at least one rotation speed at the torque converter (4) is monitored. If the monitored rotation speed is below a rotation speed threshold, the safety function commands an actuation of the converter lock-up clutch (44) in its opening direction.Type: ApplicationFiled: August 1, 2022Publication date: February 16, 2023Applicant: ZF Friedrichshafen AGInventors: Christoph Hess, Jörg Arnold, Jens Weller
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Publication number: 20220213012Abstract: The present invention relates to a process for continuous production of C4-C10 Diols from C3-C9 aldehydes comprising the process steps of: a) base-catalyzed addition of formaldehyde onto C3-C9 aldehydes to obtain the corresponding hydroxyaldehydes and b) subsequent hydrogenation of the hydroxyaldehydes to afford the corresponding diols, wherein the hydrogenation of the hydroxyaldehydes is performed continuously in the liquid phase over a Raney™ cobalt catalyst in the presence of hydrogen without workup of the reaction mixture from the process step a).Type: ApplicationFiled: June 2, 2020Publication date: July 7, 2022Inventors: Joachim REIMER, Kurt SCHALAPSKI, Jan Henry RAHE, Jörg ARNOLD, Marcel MUSENBROCK
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Patent number: 9845841Abstract: A method of operating a transmission which is shifted to various operating conditions by engaging shifting elements. At least one of the shifting elements is an interlocking shifting element which has to be engaged to obtain at least one defined operating condition of the transmission during which force flows between an input and an output shaft. When a command is received to engage the interlocking shifting element, a rotational speed of the transmission input shaft is displaced in the direction toward a synchronous rotational speed produced in the engaged operating condition of the interlocking shifting element at least as a function of the rotational speed of the transmission output shaft. When the variation of the rotational speed of the transmission input shaft crosses a predefined rotational speed threshold, the interlocking shifting element is actuated in its engaging direction.Type: GrantFiled: February 11, 2014Date of Patent: December 19, 2017Assignee: ZF Friedrichshafen AGInventors: Jorg Arnold, Klaus Steinhauser
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Patent number: 9840454Abstract: A process for obtaining product streams enriched with polyol esters from the secondary streams from polyol ester preparation, comprising a) the reaction of polyols of the general formula (II) H—(—O—[—CR1R2—]m—)o—OH??(II) in which R1 and R2 are each independently hydrogen, an alkyl radical having 1 to 5 carbon atoms or a hydroxyalkyl radical having 1 to 5 carbon atoms, m is an integer from 1 to 10, o is an integer from 2 to 15, with linear or branched aliphatic monocarboxylic acids having 3 to 20 carbon atom, with removal of the water formed; b) the removal of unconverted starting compounds from the crude ester formed; c) the treatment of the crude ester obtained in step b) with steam to form a volatile secondary stream; and d) the removal of the volatile secondary stream obtained in step c), characterized in that the volatile secondary stream obtained in step d) is separated into an aqueous phase and an organic phase and the organic phase removed is subjected to a further treatment with steam and a produType: GrantFiled: October 9, 2014Date of Patent: December 12, 2017Assignee: OXEA GMBHInventors: Jens Kubitschke, Thorsten Kreickmann, Jörg Arnold, Heinz Strutz
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Patent number: 9593769Abstract: A method for operating a drive train that includes a converter as the start-up element, an automatic transmission, and an output, whereas, after start of the drive unit, the rotational speed of a turbine of the converter is monitored, whereas, if it is determined that, within a defined first time frame after the start of the drive unit, the rotational speed of the turbine reaches or exceeds a first threshold value, a properly filled converter is inferred. If, within the defined first time frame, the rotational speed of the turbine falls short of the first threshold value, an improperly filled converter or a converter that has run empty is inferred.Type: GrantFiled: March 13, 2015Date of Patent: March 14, 2017Assignee: ZF Friedrichshafen AGInventors: Jörg Arnold, Klaus Steinhauser, Thilo Schmidt
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Patent number: 9580378Abstract: A batchwise process for aftertreatment of polyol esters prepared by reacting polyols of the general formula (II) H—(—O—[—CR1R2—]m—)o—OH??(II) in which R1 and R2 are each independently hydrogen, an alkyl radical having 1 to 5 carbon atoms, preferably methyl, ethyl or propyl, or a hydroxyalkyl radical having 1 to 5 carbon atoms, preferably the hydroxymethyl radical, m is an integer from 1 to 10, preferably 1 to 8 and especially 1, 2, 3 or 4, o is an integer from 2 to 15, preferably 2 to 8 and especially 2, 3, 4 or 5, with excess linear or branched aliphatic monocarboxylic acids having 3 to 20 carbon atoms and having a lower boiling point than the polyols used.Type: GrantFiled: August 29, 2014Date of Patent: February 28, 2017Assignee: OXEA GMBHInventors: Jens Kubitschke, Thorsten Kreickmann, Jörg Arnold, Matthias Kramer, Heinz Strutz
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Patent number: 9574585Abstract: A method is provided for the operation of an assembly of a vehicle, whereas the assembly is transferable from an unactuated position into an actuated position by a pressure medium-actuated actuator if two redundant pressure medium valves both occupy a pressure supply position. For the functional test of one of the valves, a first valve is controlled to occupy the pressure supply position, and the second valve is controlled so as not to occupy the pressure supply position. If, upon this control of the two valves at the pressure medium-actuated actuator or at the assembly to be operated by the pressure medium-actuated actuator, no reaction is detected, there is a correct operation at a proper second valve. If, despite this control of the two valves, at the pressure medium-actuated actuator or at the assembly to be operated by the pressure medium-actuated actuator, a reaction is detected, there is an improper operation at a defective second pressure medium valve.Type: GrantFiled: August 12, 2014Date of Patent: February 21, 2017Assignee: ZF Friedrichshafen AGInventors: Jörg Arnold, Thilo Schmidt, Klaus Steinhauser
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Patent number: 9534664Abstract: A method of operating a transmission which is shifted to various operating conditions by engaging shifting elements. At least one of the shifting elements is an interlocking shifting element which has to be engaged to obtain at least one defined operating condition of the transmission during which power flows between an input and an output shaft. When a command is received to engage the interlocking shifting element, a rotational speed of the transmission input shaft is displaced in the direction toward a synchronous rotational speed produced in the engaged operating condition of the interlocking shifting element at least as a function of the rotational speed of the transmission output shaft. When the variation of the rotational speed of the transmission input shaft crosses a predefined rotational speed threshold, the interlocking shifting element is actuated in its engaging direction.Type: GrantFiled: February 11, 2014Date of Patent: January 3, 2017Assignee: ZF Friedrichshafen AGInventors: Jorg Arnold, Klaus Steinhauser
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Patent number: 9500262Abstract: A method of operating a transmission device having gears that are engaged by actuating shifting elements. At least one of the shifting elements is an interlocking shifting element which has to be engaged in at least one gear to transmit drive between an input and an output shaft. When a command is received to engage the interlocking shifting element, a rotational speed of the input shaft is displaced in the direction toward a synchronous rotation speed produced in the engaged operating condition of the interlocking shifting element at least as a function of the rotational speed of the output shaft. The engagement process of the interlocking shifting element from its disengaged operating condition is discontinued if, before reaching the synchronous rotational speed, the variation of the rotational speed of the input shaft crosses a predefined rotational speed threshold without initiating engagement of the interlocking shifting element.Type: GrantFiled: February 11, 2014Date of Patent: November 22, 2016Assignee: ZF Friedrichshafen AGInventors: Jorg Arnold, Klaus Steinhauser
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Publication number: 20160229789Abstract: A process for obtaining product streams enriched with polyol esters from the secondary streams from polyol ester preparation, comprising a) the reaction of polyols of the general formula (II) H—(—O—[—CR1R2—]m—)o—OH??(II) in which R1 and R2 are each independently hydrogen, an alkyl radical having 1 to 5 carbon atoms or a hydroxyalkyl radical having 1 to 5 carbon atoms, m is an integer from 1 to 10, o is an integer from 2 to 15, with linear or branched aliphatic monocarboxylic acids having 3 to 20 carbon atom, with removal of the water formed; b) the removal of unconverted starting compounds from the crude ester formed; c) the treatment of the crude ester obtained in step b) with steam to form a volatile secondary stream; and d) the removal of the volatile secondary stream obtained in step c), characterized in that the volatile secondary stream obtained in step d) is separated into an aqueous phase and an organic phase and the organic phase removed is subjected to a further treatment with steam andType: ApplicationFiled: October 9, 2014Publication date: August 11, 2016Inventors: Jens KUBITSCHKE, Thorsten KREICKMANN, Jörg ARNOLD, Heinz STRUTZ
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Patent number: 9404569Abstract: A method for operating a 9-speed transmission which changes operating states by actuating shift elements. At least one of the shift elements is a form-locking shift element, which disengages to implement a defined transmission operating state during which the power flow, between transmission input and output shafts, is present or interrupted. A sensor is associated with the locking shift element. An operating state of the locking shift element can be determined by the sensor. Upon a request to disengage the locking shift element, a disengagement control signal is generated and the locking shift element is actuated in the disengagement direction, depending on the disengagement control signal. The transmission is shifted to a safe operating state, in which at least the transmission output shaft can rotate, when an engaged operating state of the locking shift element is determined by the sensor even though a disengagement control signal was generated.Type: GrantFiled: January 15, 2014Date of Patent: August 2, 2016Assignee: ZF Friedrichshafen AGInventors: Jorg Arnold, Georg Mihatsch
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Publication number: 20160207871Abstract: A batchwise process for aftertreatment of polyol esters prepared by reacting polyols of the general formula (II) H—(—O—[—CR1R2—]m—)o—OH ??(II) in which R1 and R2 are each independently hydrogen, an alkyl radical having 1 to 5 carbon atoms, preferably methyl, ethyl or propyl, or a hydroxyalkyl radical having 1 to 5 carbon atoms, preferably the hydroxymethyl radical, m is an integer from 1 to 10, preferably 1 to 8 and especially 1, 2, 3 or 4, o is an integer from 2 to 15, preferably 2 to 8 and especially 2, 3, 4 or 5, with excess linear or branched aliphatic monocarboxylic acids having 3 to 20 carbon atoms and having a lower boiling point than the polyols used.Type: ApplicationFiled: August 29, 2014Publication date: July 21, 2016Inventors: Jens KUBITSCHKE, Thorsten KREICKMANN, Jörg ARNOLD, Matthias KRAMER, Heinz STRUTZ
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Patent number: 9388115Abstract: A process for preparing polyol esters by reacting polyols with linear or branched aliphatic monocarboxylic acids having 3 to 20 carbon atoms, is characterized in that a mixture of the starting compounds is allowed to react in the presence of a Lewis acid containing at least one element of groups 4 to 14 of the periodic table of the elements as a catalyst and in the presence of an adsorbent with removal of the water formed, and then the crude ester obtained is aftertreated by adding a further adsorbent which is an acidic activated carbon having a pH of 1 to 6.5.Type: GrantFiled: January 28, 2016Date of Patent: July 12, 2016Assignee: OXEA GMBHInventors: Guido D. Frey, Tonia Weber, Jörg Arnold, Thorsten Kreickmann, Heinz Strutz
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Patent number: 9354140Abstract: A method of determining a fill current value of a converter lock-up clutch of an automatic transmission. The automatic transmission comprises a hydrodynamic converter, at which a speed ratio arises, and an output shaft. In a control sequence with the output shaft being stationary, the speed ratio is influenced by changing the control current, and the fill current value is determined from the progression of the speed ratio arising, during the control sequence, in conjunction with the progression of the control current.Type: GrantFiled: April 5, 2012Date of Patent: May 31, 2016Assignee: ZF Friedrichshafen AGInventors: Jörg Arnold, Thilo Schmidt, Valentine Herbeth, Klaus Steinhauser
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Publication number: 20160137582Abstract: A process for preparing polyol esters by reacting polyols with linear or branched aliphatic monocarboxylic acids having 3 to 20 carbon atoms, is characterized in that a mixture of the starting compounds is allowed to react in the presence of a Lewis acid containing at least one element of groups 4 to 14 of the periodic table of the elements as a catalyst and in the presence of an adsorbent with removal of the water formed, and then the crude ester obtained is aftertreated by adding a further adsorbent which is an acidic activated carbon having a pH of 1 to 6.5.Type: ApplicationFiled: January 28, 2016Publication date: May 19, 2016Inventors: Guido D. FREY, Tonia WEBER, Jörg ARNOLD, Thorsten KREICKMANN, Heinz STRUTZ
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Patent number: 9328820Abstract: A method for detecting a malfunctioning shift element in an automatic transmission is provided. The method includes operating the automatic transmission in an intermediate gear. A selected shift element of the automatic transmission is commanded to a disengaged configuration in the intermediate gear. The method also includes measuring a gear ratio of the automatic transmission while the automatic transmission is operating in the intermediate gear, and determining whether the selected shift element of the automatic transmission is malfunctioning based at least in part on the gear ratio of the automatic transmission in the intermediate gear.Type: GrantFiled: October 13, 2014Date of Patent: May 3, 2016Assignee: ZF FRIEDRICHSHAFEN AGInventors: Klaus Steinhauser, Jens Weller, Georg Mihatsch, Jörg Arnold
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Publication number: 20160102758Abstract: A method for detecting a malfunctioning shift element in an automatic transmission is provided. The method includes operating the automatic transmission in an intermediate gear. A selected shift element of the automatic transmission is commanded to a disengaged configuration in the intermediate gear. The method also includes measuring a gear ratio of the automatic transmission while the automatic transmission is operating in the intermediate gear, and determining whether the selected shift element of the automatic transmission is malfunctioning based at least in part on the gear ratio of the automatic transmission in the intermediate gear.Type: ApplicationFiled: October 13, 2014Publication date: April 14, 2016Inventors: Klaus Steinhauser, Jens Weller, Georg Mihatsch, Jörg Arnold
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Patent number: 9284253Abstract: A process for preparing polyol esters by reacting polyols with linear or branched aliphatic monocarboxylic acids having 3 to 20 carbon atoms, is characterized in that a mixture of the starting compounds is allowed to react in the presence of a Lewis acid containing at least one element of groups 4 to 14 of the periodic table of the elements as a catalyst and in the presence of an adsorbent with removal of the water formed, and then the crude ester obtained is aftertreated by adding a further adsorbent which is an acidic activated carbon having a pH of 1 to 6.5.Type: GrantFiled: August 10, 2013Date of Patent: March 15, 2016Assignee: OXEA GMBHInventors: Guido D. Frey, Tonia Weber, Jörg Arnold, Thorsten Kreickmann, Heinz Strutz
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Patent number: 9217503Abstract: A method of operating a vehicle drive-train comprising an internal combustion engine and a transmission system functionally connected to the internal combustion engine. The transmission has an interlocking shifting element, one shifting element half of which is functionally connected to the transmission input shaft while the other shifting element half is functionally connected to a transmission output shaft. Upon receipt of a command to change the transmission from a neutral position, in which a force flow through the transmission is interrupted, to an operating condition, in which the force flow through the transmission is produced, the interlocking shifting element is changed to an engaged operating condition. A speed difference between the shifting element halves is brought by varying the speed of the internal combustion engine into a speed difference window within which the interlocking shifting element can be changed to its engaged operating condition.Type: GrantFiled: December 21, 2010Date of Patent: December 22, 2015Assignee: ZF Friedrichshafen AGInventors: Valentine Herbeth, Jorg Arnold, Georg Mihatsch, Andreas Schmidt