Patents by Inventor Bernd Wichert
Bernd Wichert 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: 11581116Abstract: A method for transferring data from an actuating element to a control unit activating the actuating element. The control unit activates an inductance contained in the actuating element, for the transfer of the data in the actuating element in parallel to the inductance, a load being connected in parallel, or not.Type: GrantFiled: April 27, 2021Date of Patent: February 14, 2023Assignee: Robert Bosch GmbHInventors: Andreas Hempel, Andreas Kneer, Armin Mann, Bernd Wichert, Dieter Elshuber, Dieter Schuler, Markus Ditlevsen, Yannick Chauvet
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Publication number: 20210358669Abstract: A method for transferring data from an actuating element to a control unit activating the actuating element. The control unit activates an inductance contained in the actuating element, for the transfer of the data in the actuating element in parallel to the inductance, a load being connected in parallel, or not.Type: ApplicationFiled: April 27, 2021Publication date: November 18, 2021Inventors: Andreas Hempel, Andreas Kneer, Armin Mann, Bernd Wichert, Dieter Elshuber, Dieter Schuler, Markus Ditlevsen, Yannick Chauvet
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Patent number: 10911043Abstract: A device and a method for switching over a semiconductor switch with a switching signal acting on a control connection of the semiconductor switch, the switching signal being switched over as a response to registering a switchover of an activation signal; a down time being ascertained between the start of the switchover of the switching signal and the switchover of the semiconductor switch; the switchover of the semiconductor switch being delayed by a waiting period, for example by delaying the output of the switching signal and/or changing the signal level, so that an actual switching time, corresponding to a setpoint switching time, between the registration of the switchover of the activation signal and the switchover of the semiconductor switch is obtained.Type: GrantFiled: January 31, 2018Date of Patent: February 2, 2021Assignee: Robert Bosch GmbHInventors: Frank Ueltzhoeffer, Daniel Marquardt, Bernd Wichert, Ralf Henne
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Publication number: 20200052691Abstract: A device and a method for switching over a semiconductor switch with a switching signal acting on a control connection of the semiconductor switch, the switching signal being switched over as a response to registering a switchover of an activation signal; a down time being ascertained between the start of the switchover of the switching signal and the switchover of the semiconductor switch; the switchover of the semiconductor switch being delayed by a waiting period, for example by delaying the output of the switching signal and/or changing the signal level, so that an actual switching time, corresponding to a setpoint switching time, between the registration of the switchover of the activation signal and the switchover of the semiconductor switch is obtained.Type: ApplicationFiled: January 31, 2018Publication date: February 13, 2020Inventors: Frank Ueltzhoeffer, Daniel Marquardt, Bernd Wichert, Ralf Henne
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Patent number: 9228520Abstract: A method for operating a valve actuated by way of an actuator, in particular a fuel injection valve of an internal combustion engine of a motor vehicle, in which a first delay time is identified, which time characterizes a time difference between a point in time of a first change in an energization signal for the actuator and a point in time of a first change in the operating state of the valve corresponding to the first change in the energization signal. According to the present invention, from the first delay time at least one second delay time of the valve is inferred, which latter time characterizes a time difference between a point in time of a second change, different from the first change, in the energization signal and a point in time of a second change in the operating state of the valve corresponding to the second change in the energization signal.Type: GrantFiled: September 10, 2010Date of Patent: January 5, 2016Assignee: ROBERT BOSCH GMBHInventors: Klaus Joos, Ruben Schlueter, Jens Neuberg, Helerson Kemmer, Holger Rapp, Haris Hamedovic, Joerg Koenig, Anh-Tuan Hoang, Bernd Wichert, Achim Hirchenhein
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Patent number: 9068526Abstract: A method for operating a valve, in particular a fuel injector of an internal combustion engine of a motor vehicle, in which an auxiliary variable is obtained as a function of at least one electrical operating variable of an electromagnetic actuator driving a component of the valve, in particular a valve needle, and in which the auxiliary variable is checked for the presence of a predefinable characteristic. A reference variable is ascertained as a function of the auxiliary variable, the auxiliary variable is modified as a function of the reference variable to obtain a modified auxiliary variable, and the modified auxiliary variable is checked for the presence of the predefinable characteristic.Type: GrantFiled: December 2, 2010Date of Patent: June 30, 2015Assignee: ROBERT BOSCH GMBHInventors: Klaus Joos, Jens Neuberg, Helerson Kemmer, Holger Rapp, Haris Hamedovic, Bernd Wichert, Anh-Tuan Hoang, Ruben Schlueter, Joerg Koenig, Achim Hirchenhein
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Patent number: 8996280Abstract: In a method for operating a fuel injector, a transition range of the characteristics curve of the injector is detected individually and adapted continuously, so that a monotonous characteristics curve is formed, with whose aid high metering precision of the injector is achieved.Type: GrantFiled: May 3, 2010Date of Patent: March 31, 2015Assignee: Robert Bosch GmbHInventors: Klaus Joos, Ruben Schlueter, Jens Neuberg, Helerson Kemmer, Holger Rapp, Haris Hamedovic, Joerg Koenig, Anh-Tuan Hoang, Bernd Wichert, Achim Hirchenhein
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Patent number: 8955495Abstract: A method for operating a valve, in particular a fuel injector of an internal combustion engine of a motor vehicle, in which an auxiliary variable is obtained as a function of at least one electrical operating variable of an electromagnetic actuator driving a component of the valve, in particular a valve needle, and in which the auxiliary variable is checked for the presence of a predefinable characteristic. A reference variable which characterizes the operating behavior of the electromagnetic actuator is ascertained, the auxiliary variable is modified as a function of the reference variable to obtain a modified auxiliary variable, and the modified auxiliary variable is checked for the presence of the predefinable characteristic.Type: GrantFiled: December 2, 2010Date of Patent: February 17, 2015Assignee: Robert Bosch GmbHInventors: Klaus Joos, Jens Neuberg, Traugott Degler, Helerson Kemmer, Hans-Peter Lehr, Holger Rapp, Haris Hamedovic, Bernd Wichert, Anh-Tuan Hoang, Ruben Schlueter, Joerg Koenig, Achim Hirchenhein
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Publication number: 20130013170Abstract: A method for operating a valve, in particular a fuel injector of an internal combustion engine of a motor vehicle, in which an auxiliary variable is obtained as a function of at least one electrical operating variable of an electromagnetic actuator driving a component of the valve, in particular a valve needle, and in which the auxiliary variable is checked for the presence of a predefinable characteristic. A reference variable is ascertained as a function of the auxiliary variable, the auxiliary variable is modified as a function of the reference variable to obtain a modified auxiliary variable, and the modified auxiliary variable is checked for the presence of the predefinable characteristic.Type: ApplicationFiled: December 2, 2010Publication date: January 10, 2013Inventors: Klaus Joos, Jens Neuberg, Helerson Kemmer, Holger Rapp, Haris Hamedovic, Bernd Wichert, Anh-Tuan Hoang, Ruben Schlueter, Joerg Koenig, Achim Hirchenhein
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Publication number: 20120291757Abstract: A method for operating a valve, in particular a fuel injector of an internal combustion engine of a motor vehicle, in which an auxiliary variable is obtained as a function of at least one electrical operating variable of an electromagnetic actuator driving a component of the valve, in particular a valve needle, and in which the auxiliary variable is checked for the presence of a predefinable characteristic. A reference variable which characterizes the operating behavior of the electromagnetic actuator is ascertained, the auxiliary variable is modified as a function of the reference variable to obtain a modified auxiliary variable, and the modified auxiliary variable is checked for the presence of the predefinable characteristic.Type: ApplicationFiled: December 2, 2010Publication date: November 22, 2012Inventors: Klaus Joos, Jens Neuberg, Traugott Degler, Helerson Kemmer, Hans-Peter Lehr, Holger Rapp, Haris Hamedovic, Bernd Wichert, Anh-Tuan Hoang, Ruben Schlueter, Joerg Koenig, Achim Hirchenhein
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Publication number: 20120191327Abstract: A method for operating a valve actuated by way of an actuator, in particular a fuel injection valve of an internal combustion engine of a motor vehicle, in which a first delay time is identified, which time characterizes a time difference between a point in time of a first change in an energization signal for the actuator and a point in time of a first change in the operating state of the valve corresponding to the first change in the energization signal. According to the present invention, from the first delay time at least one second delay time of the valve is inferred, which latter time characterizes a time difference between a point in time of a second change, different from the first change, in the energization signal and a point in time of a second change in the operating state of the valve corresponding to the second change in the energization signal.Type: ApplicationFiled: September 10, 2010Publication date: July 26, 2012Inventors: Klaus Joos, Ruben Schlueter, Jens Neuberg, Helerson Kemmer, Holger Rapp, Haris Hamedovic, Joerg Koenig, Anh-Tuan Hoang, Bernd Wichert, Achim Hirchenhein
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Publication number: 20120152207Abstract: In a method for operating a fuel injector, a transition range of the characteristics curve of the injector is detected individually and adapted continuously, so that a monotonous characteristics curve is formed, with whose aid high metering precision of the injector is achieved.Type: ApplicationFiled: May 3, 2010Publication date: June 21, 2012Inventors: Klaus Joos, Ruben Schlueter, Jens Neuberg, Helerson Kemmer, Holger Rapp, Haris Hamedovic, Joerg Koenig, Anh-Tuan Hoang, Bernd Wichert, Achim Hirchenhein
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Publication number: 20010048087Abstract: A method and a device for activating an electromagnetic consumer having a movable element, in particular a solenoid valve for controlling the metering of fuel into an internal combustion engine. Within a time window, a switching instant at which the movable element reaches a certain position is determined. The duration of the time window can be defined so that the current flowing through the consumer during the time window does not exceed a threshold value.Type: ApplicationFiled: November 2, 1999Publication date: December 6, 2001Inventors: KLAUS ZIMMERMANN, MICHAEL STRAEHLE, TOBIAS LANG, BERND WICHERT, KLAUS SASSEN
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Patent number: 5379178Abstract: In the case of a method and a device for triggering an electromagnetic consumer (1), which is connected in series to a switching means (2), the voltage applied to the switching means (2) is fed to a voltage comparison means (12) and compared there to the voltage of a reference voltage source (13). Dependent upon this voltage comparison, an output signal is produced at the output terminal of the voltage comparison means (12), which serves to switch over a suppressor device (4).Type: GrantFiled: January 29, 1993Date of Patent: January 3, 1995Assignee: Robert Bosch GmbHInventors: Herbert Graf, Juergen Schwenger, Werner Zimmermann, Bernd Wichert, Thomas Bielesch