Patents by Inventor Andreas Krautter
Andreas Krautter 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: 11975700Abstract: For ascertaining a future wheel brake pressure, pressure generator pressures of an external power brake pressure generator are continuously measured at measurement time intervals, the wheel brake pressure changes are ascertained therefrom, and the sum of the wheel brake pressure changes ascertained during a time period prior to the measurement is added to the last measured pressure generator pressure. The wheel brake pressure thus ascertained is considered to be the wheel brake pressure that will prevail after the time period following the measurement of the pressure generator pressure in a wheel brake.Type: GrantFiled: September 21, 2019Date of Patent: May 7, 2024Assignee: ROBERT BOSCH GMBHInventors: Andreas Krautter, Johannes Von Keler
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Patent number: 11932215Abstract: A method for operating a braking system for a vehicle. A braking request signal characterizing a braking request is generated by actuation of a positioning assemblage of an actuation circuit, and a target brake pressure required in an active circuit is ascertained based on the braking request signal. An actual brake pressure in the active circuit is established in accordance with the target brake pressure, using a pressure generation device, by moving a displacer piston of the pressure generation device using an electric motor of the pressure generation device. If the braking request signal is constant over a predetermined time period, a wheel brake actuated by the active circuit is hydraulically decoupled from the pressure generation device by closing an isolation valve that is disposed in a hydraulic path between the pressure generation device and the wheel brake, and the electric motor is shut off.Type: GrantFiled: May 25, 2019Date of Patent: March 19, 2024Assignee: ROBERT BOSCH GMBHInventors: Andreas Krautter, Bertram Foitzik, Timo Haible
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Patent number: 11926306Abstract: An electronically slip-controllable power braking system for a motor vehicle, in which a controllably drivable pressure generator supplies multiple brake circuits connected in parallel to one another with pressure medium under brake pressure. Each of the brake circuits are separable through existing first control valves from the pressure generator and include second control valves that are connected downstream from the first control valves to control the brake pressure in the wheel brakes, which are connected with the brake circuits. An electronic control unit in the brake circuits has three devices, the third device puts the first control valve of a brake circuit into a passage position if a leakage is established downstream from the second control valve in this brake circuit and if it is established that the pressure generated by the pressure generator has at least approximately reached or exceeded a pressure limit of the first control valve.Type: GrantFiled: December 7, 2019Date of Patent: March 12, 2024Assignee: ROBERT BOSCH GMBHInventors: Dirk Foerch, Verena Barske, Andreas Krautter, Michael Bunk, Peter Ziegler, Ulrike Schaefer
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Patent number: 11767001Abstract: A method for operating a brake system. A brake request signal is generated, and a setpoint brake pressure required in an active circuit is ascertained. An actual brake pressure is set according to the setpoint brake pressure. A wheel brake actuated by the active circuit is hydraulically decoupled from the pressure generation device by closing an isolation valve, which is situated between the pressure generation device and the wheel brake, the isolation valve is preloaded to a closed state counter to an inflow direction of a volume flow into a brake-side section between the isolation valve and the wheel brake. A hydraulic recoupling of the wheel brake takes place by opening the isolation valve in that the actual brake pressure is set according to the setpoint brake pressure and an opening force is simultaneously applied to the isolation valve such that a compensation of a closing force takes place.Type: GrantFiled: May 25, 2019Date of Patent: September 26, 2023Assignee: ROBERT BOSCH GMBHInventors: Andreas Krautter, Bertram Foitzik, Daniel Frank, Dirk Foerch, Jens Wagner, Stefan Zahariev, Timo Haible, Verena Barske
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Patent number: 11400907Abstract: To avoid an exceedance of a permissible maximum pressure in a hydraulic vehicle power braking system including anti-slip regulation, continuous valves are to be utilized as inlet valves of wheel brakes of the vehicle braking system, and the inlet valve of a wheel brake, whose outlet valve will be opened or is open in order to regulate the wheel brake pressure, is to be partially closed, so that this inlet valve acts as a throttle and limits a brake pressure in the vehicle braking system.Type: GrantFiled: July 19, 2018Date of Patent: August 2, 2022Assignee: Robert Bosch GmbHInventors: Andreas Krautter, Bertram Foitzik, Daniel Frank, Dirk Foerch, Michael Bunk
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Publication number: 20220153247Abstract: An electronically slip-controllable power braking system for a motor vehicle, in which a controllably drivable pressure generator supplies multiple brake circuits connected in parallel to one another with pressure medium under brake pressure. Each of the brake circuits are separable through existing first control valves from the pressure generator and include second control valves that are connected downstream from the first control valves to control the brake pressure in the wheel brakes, which are connected with the brake circuits. An electronic control unit in the brake circuits has three devices, the third device puts the first control valve of a brake circuit into a passage position if a leakage is established downstream from the second control valve in this brake circuit and if it is established that the pressure generated by the pressure generator has at least approximately reached or exceeded a pressure limit of the first control valve.Type: ApplicationFiled: December 7, 2019Publication date: May 19, 2022Applicants: Robert Bosch GmbH, Robert Bosch GmbHInventors: Dirk Foerch, Verena Barske, Andreas Krautter, Michael Bunk, Peter Ziegler, Ulrike Schaefer
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Publication number: 20220080941Abstract: For ascertaining a future wheel brake pressure, pressure generator pressures of an external power brake pressure generator are continuously measured at measurement time intervals, the wheel brake pressure changes are ascertained therefrom, and the sum of the wheel brake pressure changes ascertained during a time period prior to the measurement is added to the last measured pressure generator pressure. The wheel brake pressure thus ascertained is considered to be the wheel brake pressure that will prevail after the time period following the measurement of the pressure generator pressure in a wheel brake.Type: ApplicationFiled: September 21, 2019Publication date: March 17, 2022Inventors: Andreas Krautter, Johannes Von Keler
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Patent number: 11161492Abstract: A control device operates a vehicle hydraulic brake system (a) in a fallback mode during which a simulator isolating valve is closed and a brake circuit isolating valve is open, (b) in a simulator mode during which the simulator isolating valve is open and the brake circuit isolating valve is closed, and (c) to transition from the fallback mode to the simulator mode using an intermediate mode in which, at least once, the simulator isolating valve and the at least one brake circuit isolating valve are simultaneously closed for a first time interval, the simulator isolating valve and the at least one brake circuit isolating valve are simultaneously open for a second time interval, and the simulator isolating valve is closed for a third time interval, while the at least one brake circuit isolating valve is open at least part of the time during the third time interval.Type: GrantFiled: July 24, 2018Date of Patent: November 2, 2021Assignee: Robert Bosch GmbHInventors: Andreas Krautter, Rainer Heinsohn
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Publication number: 20210300312Abstract: A method for operating a braking system for a vehicle. A braking request signal characterizing a braking request is generated by actuation of a positioning assemblage of an actuation circuit, and a target brake pressure required in an active circuit is ascertained based on the braking request signal. An actual brake pressure in the active circuit is established in accordance with the target brake pressure, using a pressure generation device, by moving a displacer piston of the pressure generation device using an electric motor of the pressure generation device. If the braking request signal is constant over a predetermined time period, a wheel brake actuated by the active circuit is hydraulically decoupled from the pressure generation device by closing an isolation valve that is disposed in a hydraulic path between the pressure generation device and the wheel brake, and the electric motor is shut off.Type: ApplicationFiled: May 25, 2019Publication date: September 30, 2021Inventors: Andreas Krautter, Bertram Foitzik, Timo Haible
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Publication number: 20210269004Abstract: A method for operating a brake system. A brake request signal is generated, and a setpoint brake pressure required in an active circuit is ascertained. An actual brake pressure is set according to the setpoint brake pressure. A wheel brake actuated by the active circuit is hydraulically decoupled from the pressure generation device by closing an isolation valve, which is situated between the pressure generation device and the wheel brake, the isolation valve is preloaded to a closed state counter to an inflow direction of a volume flow into a brake-side section between the isolation valve and the wheel brake. A hydraulic recoupling of the wheel brake takes place by opening the isolation valve in that the actual brake pressure is set according to the setpoint brake pressure and an opening force is simultaneously applied to the isolation valve such that a compensation of a closing force takes place.Type: ApplicationFiled: May 25, 2019Publication date: September 2, 2021Inventors: Andreas Krautter, Bertram Foitzik, Daniel Frank, Dirk Foerch, Jens Wagner, Stefan Zahariev, Timo Haible, Verena Barske
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Patent number: 10737674Abstract: A method for operating a vehicle brake system, including activation of a electrohydraulic brake booster device when there is an actuation of a brake actuating element, so a brake pressure increase is brought about in a wheel brake cylinder, and decoupling of the wheel brake cylinder from a master brake cylinder of the brake system by closing a separating valve, it being ascertained, before the closing of the separating valve, whether a first quantity relating to an actuation speed of the actuation of the brake actuating element and/or a second quantity relating to a master brake cylinder pressure increase is within at least one specified normal value range, and, if warranted, the separating valve being closed without a delay, whereas otherwise the closing of the separating valve is delayed taking into account the second quantity and/or a third quantity relating to the brake pressure increase.Type: GrantFiled: March 28, 2017Date of Patent: August 11, 2020Assignee: Robert Bosch GmbHInventor: Andreas Krautter
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Publication number: 20200172074Abstract: To avoid an exceedance of a permissible maximum pressure in a hydraulic vehicle power braking system including anti-slip regulation, continuous valves are to be utilized as inlet valves of wheel brakes of the vehicle braking system, and the inlet valve of a wheel brake, whose outlet valve will be opened or is open in order to regulate the wheel brake pressure, is to be partially closed, so that this inlet valve acts as a throttle and limits a brake pressure in the vehicle braking system.Type: ApplicationFiled: July 19, 2018Publication date: June 4, 2020Inventors: Andreas Krautter, Bertram Foitzik, Daniel Frank, Dirk Foerch, Michael Bunk
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Publication number: 20190039585Abstract: A control device operates a vehicle hydraulic brake system (a) in a fallback mode during which a simulator isolating valve is closed and a brake circuit isolating valve is open, (b) in a simulator mode during which the simulator isolating valve is open and the brake circuit isolating valve is closed, and (c) to transition from the fallback mode to the simulator mode using an intermediate mode in which, at least once, the simulator isolating valve and the at least one brake circuit isolating valve are simultaneously closed for a first time interval, the simulator isolating valve and the at least one brake circuit isolating valve are simultaneously open for a second time interval, and the simulator isolating valve is closed for a third time interval, while the at least one brake circuit isolating valve is open at least part of the time during the third time interval.Type: ApplicationFiled: July 24, 2018Publication date: February 7, 2019Inventors: Andreas Krautter, Rainer Heinsohn
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Publication number: 20170282878Abstract: A method for operating a vehicle brake system, including activation of a electrohydraulic brake booster device when there is an actuation of a brake actuating element, so a brake pressure increase is brought about in a wheel brake cylinder, and decoupling of the wheel brake cylinder from a master brake cylinder of the brake system by closing a separating valve, it being ascertained, before the closing of the separating valve, whether a first quantity relating to an actuation speed of the actuation of the brake actuating element and/or a second quantity relating to a master brake cylinder pressure increase is within at least one specified normal value range, and, if warranted, the separating valve being closed without a delay, whereas otherwise the closing of the separating valve is delayed taking into account the second quantity and/or a third quantity relating to the brake pressure increase.Type: ApplicationFiled: March 28, 2017Publication date: October 5, 2017Inventor: Andreas KRAUTTER
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Patent number: 8630780Abstract: A method for controlling a brake system including receiving a braking signal for setting a braking action by the brake system, ascertaining a minimum rate of pressure increase in the brake system in order to effect the braking action within a predefined response time, and setting a pumping capacity of a pump of the brake system so that the pressure in the brake system increases in accordance with the minimum rate.Type: GrantFiled: December 17, 2008Date of Patent: January 14, 2014Assignee: Robert Bosch GmbHInventors: Michael Bunk, Konstantin Agapov, Andreas Krautter, Matthias Schanzenbach
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Publication number: 20110166762Abstract: A method for controlling a brake system including receiving a braking signal for setting a braking action by the brake system, ascertaining a minimum rate of pressure increase in the brake system in order to effect the braking action within a predefined response time, and setting a pumping capacity of a pump of the brake system so that the pressure in the brake system increases in accordance with the minimum rate.Type: ApplicationFiled: December 17, 2008Publication date: July 7, 2011Inventors: Michael Bunk, Konstantin Agapov, Andreas Krautter, Matthias Schanzenbach
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Patent number: 7647764Abstract: A device and method for determining a temperature variable, in particular a temperature variable that characterizes the condition of an exhaust-gas treatment system of a combustion engine, are described. The temperature is specified on the basis of variables that characterize the mass flow in the exhaust-gas treatment system, and/or of a second temperature variable that characterizes the temperature upstream from the exhaust-gas treatment system.Type: GrantFiled: February 9, 2002Date of Patent: January 19, 2010Assignee: Robert Bosch GmbHInventors: Holger Plote, Andreas Krautter, Michael Walter
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Patent number: 7318341Abstract: A method and a device for monitoring a signal, in particular a pressure signal that characterizes the pressure differential at the input and output of an exhaust after-treatment system, are described. Errors are recognized on the basis of the occurrence of oscillations in the sensor signal.Type: GrantFiled: February 26, 2002Date of Patent: January 15, 2008Assignee: Robert Bosch GmbHInventors: Rainer Strohmaier, Holger Plote, Andreas Krautter, Stefan Zimmermann, Michael Walter, Juergen Sojka
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Patent number: 7082752Abstract: A method and a device for monitoring an exhaust gas aftertreatment system, in particular an oxidation catalytic converter, are described. An error is recognized if an operating parameter does not change as expected, when a particular operating state is present.Type: GrantFiled: February 26, 2002Date of Patent: August 1, 2006Assignee: Robert Bosch GmbHInventors: Holger Plote, Andreas Krautter, Michael Walter, Juergen Sojka
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Patent number: 7055309Abstract: A method and a device for controlling an internal combustion engine, in which a first quantity characterizing the flow resistance of a first component of the exhaust-gas treatment system is determined based on a first measured quantity and a volumetric-flow quantity, and the volumetric-flow quantity is determined based on a second quantity which characterizes the flow resistance of a second component of the exhaust system.Type: GrantFiled: February 13, 2003Date of Patent: June 6, 2006Assignee: Robert Bosch GmbHInventors: Holger Plote, Andreas Krautter, Michael Walter, Juergen Sojka, Matthias Stegmaier, Thomas Zein, Matthias Mansbart