Patents by Inventor Thomas Weitze
Thomas Weitze 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: 11548490Abstract: A vehicle braking system (20) has a primary braking unit (22) with a first pressure generating unit (34) and a first reservoir (26). The vehicle braking system (20) further has a secondary braking unit (24) with a second pressure generating unit (52) and second reservoir (70). A method of operating the vehicle braking system (20) includes actuating the pressure generating unit (34) of the primary braking unit (22) thereby pressurizing a fluid at a wheel cylinder (30) to slow or stop the vehicle. The wheel cylinder (30) is depressurized in response to an electrical signal provided to an electronic control unit (100,102). The fluid is transferred from the wheel cylinder (30) to the second reservoir (70). The fluid path (PI) between the wheel cylinder (30) and the second reservoir (70) is shorter and has less fluid resistance than the fluid path (P2) between the wheel cylinder (30) and the first reservoir (26). The present invention further comprises two braking systems.Type: GrantFiled: May 16, 2018Date of Patent: January 10, 2023Assignee: Robert Bosch GmbHInventor: Thomas Weitze
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Patent number: 11396283Abstract: A vehicle braking system includes a master cylinder, and a wheel cylinder. A primary braking unit includes a first pressure generating unit distinct from the master cylinder and is operable to actuate a braking action at the wheel cylinder in a primary mode of operation. The primary braking unit further includes an outlet port connecting the primary braking unit to the wheel cylinder. A secondary braking unit includes a second pressure generating unit distinct from the master cylinder and operable to actuate a braking action at the wheel cylinder in a secondary mode of operation. The secondary braking unit an inlet port connected to the outlet port of the primary braking unit. The primary braking unit includes one or more ABS valves operable to control traction control and anti-lock braking in the primary mode of operation and located between the first pressure generating unit and the outlet port of the primary braking unit.Type: GrantFiled: April 5, 2018Date of Patent: July 26, 2022Assignee: Robert Bosch GmbHInventors: Thomas Weitze, Bernhard Jahnke, Christoph Eisele, Michael Kloss
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Patent number: 10969032Abstract: A solenoid valve for controlling the braking pressure of a wheel brake of a slip-controllable hydraulic brake system of a motor vehicle includes an armature, a valve insert, a valve seat, a valve element, and a spring device. The valve element is arranged in the valve insert in a longitudinally displaceable manner and acts together with the valve seat. The spring applies a force acting in the direction of opening with respect to the valve seat to the valve element in the installed position. The valve element can be actuated by an electromagnetic actuator in the closing direction with respect to the valve seat. The valve element is arranged between an anchor and the valve seat and is operatively connected to the anchor. A front face of the valve element facing the anchor has at least one projection and the projection defines a point of contact with the anchor.Type: GrantFiled: September 20, 2017Date of Patent: April 6, 2021Assignee: Robert Bosch GmbHInventors: Marcus Ertle, Klaus Landesfeind, Jens Norberg, Stephan Steingass, Thomas Weitze, Carsten Bodmann, Edwin Staib
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Publication number: 20210070267Abstract: An electrohydraulic vehicle power braking system for a passenger car driving autonomously on public roads. Two power brake pressure generators are provided which are independent of one another, one of which preferably includes an electromechanically drivable power piston-cylinder unit, and the other preferably includes two hydraulic pumps. Each power brake pressure generator includes a brake fluid reservoir, which is divided into chambers and which together are connected to a further brake fluid reservoir, which is not divided into chambers. The further brake fluid reservoir includes a brake fluid sensor, with the aid of which a brake fluid loss due to a leak at any arbitrary point of the vehicle power braking system is establishable. Due to short lines, the brake fluid reservoirs cause low flow resistances, and thus a rapid brake pressure build-up, even when the brake fluid is cold and, as a result, viscous.Type: ApplicationFiled: December 6, 2018Publication date: March 11, 2021Inventors: Andreas Weh, Juergen Tandler, Matthias Mayr, Thomas Weitze
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Patent number: 10865897Abstract: A non-return valve for a solenoid valve includes a non-return valve seat and a movable closure element. The valve seat is arranged at an edge of a fluid channel. The movable closure element is configured to carry out a direction-orientated throughflow and sealing function. The closure element includes a sealing cone, an abutment base, and a resilient sealing ring. The sealing ring is arranged between the abutment base and the sealing cone. The abutment base forms, in the event of sealing, a support face for the resilient sealing ring. At an edge of the non-return valve seat there is a first support face which in the event of sealing forms with a second support face which is formed at the outer edge of the abutment base in the direction of the non-return valve seat a mechanical axial stop for the movable closure element.Type: GrantFiled: June 27, 2017Date of Patent: December 15, 2020Assignee: Robert Bosch GmbHInventors: Enrico Belmonte, Ingo Buchenau, Martin Winkler, Michael Hilden, Rene Schepp, Thomas Weitze, Thorsten Schelldorf
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Publication number: 20200198607Abstract: A vehicle braking system (20) has a primary braking unit (22) with a first pressure generating unit (34) and a first reservoir (26). The vehicle braking system (20) further has a secondary braking unit (24) with a second pressure generating unit (52) and second reservoir (70). A method of operating the vehicle braking system (20) includes actuating the pressure generating unit (34) of the primary braking unit (22) thereby pressurizing a fluid at a wheel cylinder (30) to slow or stop the vehicle. The wheel cylinder (30) is depressurized in response to an electrical signal provided to an electronic control unit (100,102). The fluid is transferred from the wheel cylinder (30) to the second reservoir (70). The fluid path (PI) between the wheel cylinder (30) and the second reservoir (70) is shorter and has less fluid resistance than the fluid path (P2) between the wheel cylinder (30) and the first reservoir (26). The present invention further comprises two braking systems.Type: ApplicationFiled: May 16, 2018Publication date: June 25, 2020Inventor: Thomas Weitze
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Publication number: 20200055504Abstract: A vehicle braking system includes a master cylinder, and a wheel cylinder. A primary braking unit includes a first pressure generating unit distinct from the master cylinder and is operable to actuate a braking action at the wheel cylinder in a primary mode of operation. The primary braking unit further includes an outlet port connecting the primary braking unit to the wheel cylinder. A secondary braking unit includes a second pressure generating unit distinct from the master cylinder and operable to actuate a braking action at the wheel cylinder in a secondary mode of operation. The secondary braking unit an inlet port connected to the outlet port of the primary braking unit. The primary braking unit includes one or more ABS valves operable to control traction control and anti-lock braking in the primary mode of operation and located between the first pressure generating unit and the outlet port of the primary braking unit.Type: ApplicationFiled: April 5, 2018Publication date: February 20, 2020Inventors: Thomas Weitze, Bernhard Jahnke, Christoph Eisele
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Patent number: 10549736Abstract: A valve assembly for a pressure change damper for a braking-force-regulated hydraulic vehicle brake system includes a valve housing, two valves, and a valve seat body. The valve housing includes an open side. The two valves are arranged in the valve housing. The valve seat body includes two valve seats for the two valves and is configured to close the open side of the valve housing.Type: GrantFiled: October 19, 2015Date of Patent: February 4, 2020Assignee: Robert Bosch GmbHInventor: Thomas Weitze
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Publication number: 20190322263Abstract: A solenoid valve for controlling the braking pressure of a wheel brake of a slip-controllable hydraulic brake system of a motor vehicle includes an armature, a valve insert, a valve seat, a valve element, and a spring device. The valve element is arranged in the valve insert in a longitudinally displaceable manner and acts together with the valve seat. The spring applies a force acting in the direction of opening with respect to the valve seat to the valve element in the installed position. The valve element can be actuated by an electromagnetic actuator in the closing direction with respect to the valve seat. The valve element is arranged between an anchor and the valve seat and is operatively connected to the anchor. A front face of the valve element facing the anchor has at least one projection and the projection defines a point of contact with the anchor.Type: ApplicationFiled: September 20, 2017Publication date: October 24, 2019Inventors: Marcus Ertle, Klaus Landesfeind, Jens Norberg, Stephan Steingass, Thomas Weitze, Carsten Bodmann, Edwin Staib
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Publication number: 20180010702Abstract: A check valve for a solenoid valve inclues a check valve seat that is arranged on an edge of a fluid passage and a movable closing element configured to execute a direction-oriented throughflow and sealing function. The closing element includes a sealing cone, a contact foot with a plurality of outflow grooves formed on the edge, and an elastic sealing ring that is arranged between the contact foot and the sealing cone. The outflow grooves form in each case a seating edge for the elastic sealing ring during sealing. The outflow grooves are configured in each case with an arcuate seating edge, which has a predetermined arc length, so that a circle segment of the elastic sealing ring, with an opening angle in the region of 40° to 120°, butts against the respective seating edge during sealing. A solenoid valve includes the check valve.Type: ApplicationFiled: May 31, 2017Publication date: January 11, 2018Inventor: Thomas Weitze
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Publication number: 20180010703Abstract: A non-return valve for a solenoid valve includes a non-return valve seat and a movable closure element. The valve seat is arranged at an edge of a fluid channel. The movable closure element is configured to carry out a direction-orientated throughflow and sealing function. The closure element includes a sealing cone, an abutment base, and a resilient sealing ring. The sealing ring is arranged between the abutment base and the sealing cone. The abutment base forms, in the event of sealing, a support face for the resilient sealing ring. At an edge of the non-return valve seat there is a first support face which in the event of sealing forms with a second support face which is formed at the outer edge of the abutment base in the direction of the non-return valve seat a mechanical axial stop for the movable closure element.Type: ApplicationFiled: June 27, 2017Publication date: January 11, 2018Inventors: Enrico Belmonte, Ingo Buchenau, Martin Winkler, Michael Hilden, Rene Schepp, Thomas Weitze, Thorsten Schelldorf
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Publication number: 20170253222Abstract: A valve assembly for a pressure change damper for a braking-force-regulated hydraulic vehicle brake system includes a valve housing, two valves, and a valve seat body. The valve housing includes an open side. The two valves are arranged in the valve housing. The valve seat body includes two valve seats for the two valves and is configured to close the open side of the valve housing.Type: ApplicationFiled: October 19, 2015Publication date: September 7, 2017Inventor: Thomas Weitze
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Patent number: 9403520Abstract: The disclosure relates to a valve for controlling fluids, including a valve body defining a passage opening, a tapering valve seat formed on the valve body, a closing element configured to open up and to close off the passage opening at the tapering valve seat, and a protruding region adjoining the tapering valve seat. The protruding region extends over only part of a circumference of the tapering valve seat.Type: GrantFiled: July 27, 2011Date of Patent: August 2, 2016Assignee: Robert Bosch GmbHInventors: Reinhard Fink, Dirk Foerch, Thomas Weitze
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Publication number: 20140014869Abstract: The disclosure relates to a valve for controlling fluids, including a valve body defining a passage opening, a tapering valve seat formed on the valve body, a closing element configured to open up and to close off the passage opening at the tapering valve seat, and a protruding region adjoining the tapering valve seat. The protruding region extends over only part of a circumference of the tapering valve seat.Type: ApplicationFiled: July 27, 2011Publication date: January 16, 2014Applicant: Robert Bosch GmbHInventors: Reinhard Fink, Dirk Foerch, Thomas Weitze