Patents by Inventor Hans-Jorg Feigel
Hans-Jorg Feigel 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: 9868426Abstract: The invention relates to an electrically controllable pressure provision device (5, 5?), particularly for a hydraulic motor-vehicle brake system, comprising a stepped bore (54), which is arranged in a housing (53,21), and a piston (51), which can be actuated by an electromechanical actuator (35, 36). The piston (51), together with the housing (53, 21), delimits a pressure chamber (50). The piston (51) is constructed as a stepped piston, the smaller-diameter piston step (51?) of which enters the smaller-diameter step (54?) of the stepped bore after a specified actuation of the stepped piston, such that the pressure chamber (50) is subdivided into a first pressure chamber (55) and a second pressure chamber (56). The invention further relates to a brake system for motor vehicles having such a pressure provision device.Type: GrantFiled: February 28, 2014Date of Patent: January 16, 2018Assignee: CONTINENTAL TEVES AG & CO. OHGInventors: Hans-Jörg Feigel, Peter Drott, Kristijan Tarandek, Johann Jungbecker
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Patent number: 9834188Abstract: A hydraulic brake system includes a brake actuating element, a simulation device with a detector for detecting brake actuation by a driver. No mechanical and/or hydraulic operative connection between the brake actuating element and the wheel brakes is provided. A pressure medium reservoir, an electrically controllable pressure source for actuating the wheel brakes can be connected to each of the wheel brakes, electrically actuable wheel valves assigned to the wheel brakes for setting wheel brake pressures, and at least one electronic control and regulating unit for actuating the pressure source and wheel valves. The pressure source includes at least one piston which is sealed in a housing by a first sealing element and a second sealing element. In the case of a leak of the first sealing element, a pressure build-up is carried out at the wheel brakes by the pressure source with use of the second sealing element.Type: GrantFiled: November 13, 2014Date of Patent: December 5, 2017Assignee: Continental Teves AG & Co. oHGInventor: Hans-Jörg Feigel
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Patent number: 9827960Abstract: A brake system for motor vehicles, which can be actuated in a “brake-by-wire” operating mode both by the vehicle driver and independently of the vehicle driver. In the “brake-by-wire” operating mode the system can be operated in at least one fallback operating mode, with a brake master cylinder, actuated by a brake pedal, having a housing and two pistons, which delimit two pressure chambers, are assigned to brake circuits with wheel brakes, a pressure medium reservoir, one electrically actuable inlet valve per wheel brake for setting wheel-individual brake pressures, a first electrically controllable pressure provision device for loading the wheel brakes with pressure, and a second electrically controllable pressure provision device with at least one vacuum connector and a pressure connector, the vacuum connector is connected to the pressure medium reservoir. The pressure connector is connected to at least one wheel brake without a valve being connected in between.Type: GrantFiled: November 13, 2014Date of Patent: November 28, 2017Assignee: Continental Teves AG & Co. oHGInventors: Hans-Jörg Feigel, Daniel Widmann
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Publication number: 20170210372Abstract: A safety system brake system comprises a hydraulic pressure-providing device having a pressure chamber connected to at least one brake circuit by a separating valve and into which pressure chamber a piston is moved to build up pressure. The pressure chamber is a two-stage pressure chamber having first and second sub-chambers. During pressure build-up the piston is moved into the first and then the second sub-chamber. The two sub-chamber are hydraulically closed off from each other when the piston is moved a specified distance into the second sub-chamber. A first check valve is connected to the first sub-chamber on a suction side and to a brake fluid reservoir on a blocking side. A second check valve is connected to the second sub-chamber on a suction side, and to the suction side of the first check valve on the blocking side.Type: ApplicationFiled: April 10, 2017Publication date: July 27, 2017Applicant: Continental Teves AG & Co. oHGInventor: Hans-Jörg Feigel
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Patent number: 9604614Abstract: A method and system for operating a brake system for motor vehicles, including a plurality of wheel brakes for which wheel-individual nominal pressure includes an electrically controllable pressure supply device, to provide a brake system pressure for actuating the wheel brakes. The brake system pressure provided by the pressure supply device can be determined. An electrically controllable inlet valve and electrically controllable outlet valve per wheel brake adjust wheel-individual brake pressures.Type: GrantFiled: March 5, 2013Date of Patent: March 28, 2017Assignee: Continental Teves AG & Co. oHGInventor: Hans-Jörg Feigel
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Patent number: 9566960Abstract: A method and system for operating a motor vehicle brake system, including several wheel brakes, an electrically controllable pressure supply device, dispenses a pressure medium volume for actuating the brakes, and an analogized or analog-controlled inlet valve, arranged in each wheel brake between the pressure supply device and wheel brake, for adjusting wheel-individual brake pressures. A check valve is connected in parallel to each inlet valve. At the start of a wheel-individual brake pressure control, all inlet valves are closed, and a pressure build-up is carried out in a predetermined group of one or more wheel brakes by displacing a pressure medium volume into the predetermined group of wheel brakes by the pressure supply device. Each inlet valve of the predetermined group is controlled such that the inlet valve is overflowed, wherein each inlet valve of the remaining wheel brakes is controlled such that the inlet valve remains closed.Type: GrantFiled: March 5, 2013Date of Patent: February 14, 2017Assignee: Continental Teves AG & Co. oHGInventor: Hans-Jörg Feigel
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Patent number: 9555786Abstract: A motor vehicle braking system and method operable in a brake-by-wire mode and independently of the driver, with a master brake cylinder (2) operated by a brake pedal (1) having a piston (15, 16) and a pressure chamber (17, 18), connected with a brake circuit (I, II) and wheel brakes (8,9, 10, 11). An electrically controllable pressure supplying device (5) operates the wheel brakes; and a simulation device (3) with at least one elastic element (33), provides an acceptable brake pedal feel in the brake-by-wire mode. The simulation device (3) has a simulator chamber (29) connected, or is hydraulically connected, through a first hydraulic connection (54) to the pressure chamber (17) and which has an electrically actuated isolation valve (28) with a pressure means reservoir (4) under atmospheric pressure. A media separator device (47) is arranged in the connection (46) between the simulator chamber (29) and the isolation valve (28).Type: GrantFiled: July 11, 2013Date of Patent: January 31, 2017Assignee: CONTINENTAL TEVES AG & CO. OHGInventor: Hans-Jörg Feigel
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Patent number: 9487204Abstract: The invention relates to a method for determining a driving characteristic of an analogized or analog-controlled hydraulic valve of a brake system for motor vehicles, comprising hydraulically operatable wheel brakes, in which a brake pressure (pDBE), which is generated with the aid of an electrically controllable, electric-motor-driven (110, 35) driven pressure supply device (101, 5), is conducted to a wheel brake (105a, 105b; 8-11) via an inlet valve (102a, 102b; 6a-d) and can be conducted in particular via an outlet valve (103a, 103b, 7a-d) from the wheel brake into a pressure medium container (104, 4).Type: GrantFiled: March 5, 2013Date of Patent: November 8, 2016Assignee: Continental Teves AG & Co. oHGInventors: Hans-Jörg Feigel, Harald Biller, Jan Hoffmann, Christian Courth
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Publication number: 20160272178Abstract: A brake system for motor vehicles, which can be actuated in a “brake-by-wire” operating mode both by the vehicle driver and independently of the vehicle driver. In the “brake-by-wire” operating mode the system can be operated in at least one fallback operating mode, with a brake master cylinder, actuated by a brake pedal, having a housing and two pistons, which delimit two pressure chambers, are assigned to brake circuits with wheel brakes, a pressure medium reservoir, one electrically actuable inlet valve per wheel brake for setting wheel-individual brake pressures, a first electrically controllable pressure provision device for loading the wheel brakes with pressure, and a second electrically controllable pressure provision device with at least one vacuum connector and a pressure connector, the vacuum connector is connected to the pressure medium reservoir. The pressure connector is connected to at least one wheel brake without a valve being connected in between.Type: ApplicationFiled: November 13, 2014Publication date: September 22, 2016Inventor: Hans-Jörg Feigel
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Patent number: 9446753Abstract: A brake actuating unit (1, 1?) for a brake-by-wire motor vehicle brake system having a housing (10), a first hydraulic cylinder/piston arrangement (3) to which a plurality of wheel brakes connectable. The piston being operable by a push rod (2) transmitting an actuating force, an electrically controllable pressure supplying device (6) in the form of a second hydraulic cylinder/piston arrangement (12), actuated by an electric motor (7). A number of valves (41, 42, 43) for setting wheel-individual brake pressures and for disconnecting or connecting the wheel brakes with the first or the second cylinder/piston arrangement (3, 12). The valves and the second cylinder/piston arrangement are arranged at least partially inside the housing (10), the axis of the electric motor (7) being arranged substantially perpendicular to the longitudinal axis (30) of the first cylinder/piston arrangement (3).Type: GrantFiled: August 7, 2012Date of Patent: September 20, 2016Assignee: CONTINENTAL TEVES AG & CO. OHGInventors: Hans-Jörg Feigel, Kristjan Tarandek
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Publication number: 20160264113Abstract: A hydraulic brake system includes a brake actuating element, a simulation device with a detector for detecting brake actuation by a driver. No mechanical and/or hydraulic operative connection between the brake actuating element and the wheel brakes is provided. A pressure medium reservoir, an electrically controllable pressure source for actuating the wheel brakes can be connected to each of the wheel brakes, electrically actuable wheel valves assigned to the wheel brakes for setting wheel brake pressures, and at least one electronic control and regulating unit for actuating the pressure source and wheel valves. The pressure source includes at least one piston which is sealed in a housing by a first sealing element and a second sealing element. In the case of a leak of the first sealing element, a pressure build-up is carried out at the wheel brakes by the pressure source with use of the second sealing element.Type: ApplicationFiled: November 13, 2014Publication date: September 15, 2016Inventor: Hans-Jörg FEIGEL
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Publication number: 20160200307Abstract: A brake system for motor vehicles controlled in a brake-by-wire operating mode by the vehicle driver and independently. A normally open simulator valve is used, and no isolating valves are required for decoupling the master brake cylinder pressure chambers from the wheel brakes. The simulation device is not connected to one of the pressure chambers of the master brake cylinder and is isolated hydraulically from the pressure chambers of the master brake cylinder, but is coupled directly to the movement of the first master brake cylinder piston. The first master brake cylinder piston is formed as a stepped piston with a circular face and an annular face, the circular face delimits the first pressure chamber and the annular face delimits the hydraulic chamber, wherein a pressure effect in the chamber corresponds to a force which acts on the first master brake cylinder piston against the actuation direction.Type: ApplicationFiled: August 8, 2014Publication date: July 14, 2016Inventor: Hans-Jörg Feigel
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Publication number: 20160031426Abstract: The invention relates to an electrically controllable pressure provision device (5, 5?), particularly for a hydraulic motor-vehicle brake system, comprising a stepped bore (54), which is arranged in a housing (53,21), and a piston (51), which can be actuated by an electromechanical actuator (35, 36). The piston (51), together with the housing (53, 21), delimits a pressure chamber (50). The piston (51) is constructed as a stepped piston, the smaller-diameter piston step (51?) of which enters the smaller-diameter step (54?) of the stepped bore after a specified actuation of the stepped piston, such that the pressure chamber (50) is subdivided into a first pressure chamber (55) and a second pressure chamber (56). The invention further relates to a brake system for motor vehicles having such a pressure provision device.Type: ApplicationFiled: February 28, 2014Publication date: February 4, 2016Inventors: Hans-Jörg Feigel, Peter Drott, Kristijan Tarandek, Johann Jungbecker
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Publication number: 20160023644Abstract: A brake system for motor vehicles, having a brake master cylinder actuated by a brake pedal with at least one first pressure chamber. The brake master cylinder communicating with wheel brakes; and a hydraulic fluid storage container. A pressure balancing connection connects to the fluid storage container. A first electrically controllable pressure supply device communicating with the wheel brakes. A pressure regulating valve arrangement for regulated wheel brake pressure. A first electronic control and regulating unit actuated the first pressure supply device and the pressure regulating valve arrangement. A second electrically controllable pressure supply device connected to the brake master cylinder and having a pressure outlet connection paired with a second electronic control and regulating unit. The first and the second pressure supply device generate braking pressures independently of each other, and the pressure outlet connection is connected to the pressure balancing connection.Type: ApplicationFiled: February 17, 2014Publication date: January 28, 2016Inventors: Hans-Jörg Feigel, Harald Biller
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Publication number: 20160009263Abstract: A brake actuation unit (I) having a master brake cylinder (2) and a pressure-medium reservoir (4); a pressure provision device (5), having a piston (51) actuated by an electric motor (35), wherein the piston delimits a pressure chamber (50); first and second groups of electrically actuatable valves (6a-6d, 7a-7d); and an electronic control unit (12, 12?). The electric motor has at least two independently operable drive units, each having at least one winding, for driving the electric motor. The electronic control unit has a first microcontroller (201) and a second microcontroller (301). The first microcontroller controls (205) one of the drive units and the second microcontroller controls (305) the other of the drive units. The first and second microcontrollers control (207, 307) the second group of valves.Type: ApplicationFiled: February 28, 2014Publication date: January 14, 2016Inventors: Hans-Jörg Feigel, Josko Kurbasa
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Patent number: 9205820Abstract: A pulsation damping capsule for connection to the pressure side of a piston pump having a metal membrane housing that is assembled from two membrane shells joined together in a hermetically sealed manner. The metal membrane housing separates an internal space from a surrounding pressure medium. The membrane shells are connected along a circumferential seam such that the pulsation damping capsule can compress and expand in a resilient-elastic manner as an energy convertor when subjected to external pressure as a result of pressure medium pulses. A reshapeable mass is arranged in the internal space and when the membrane shells are in the resilient-elastically compressed state, the mass completely fills an intermediate space that remains between the two membrane shells, so that the mass is precisely matched to the internal contour of the reshaped membrane shells while avoiding the formation of hollow spaces.Type: GrantFiled: March 16, 2011Date of Patent: December 8, 2015Assignee: CONTINENTAL TEVES AG & CO. OHGInventors: Rudiger Briesewitz, Dieter Dinkel, Christoph Wagner, Hans-Jorg Feigel
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Patent number: 9205824Abstract: A motor vehicle brake system and method operable in a brake by wire and in a fallback operating mode. In addition to a first pressure supply unit a second electrically controllable pressure supply unit having at least one intake port and one pressure port, the intake port of which is connected or connectable to one of the pressure chambers and the pressure port of which is connectable or connected to the brake circuit associated with the pressure chamber. The second pressure supply unit is arranged in the hydraulic connection between one of the pressure chambers of the brake master cylinder and the brake circuit associated with the pressure chamber.Type: GrantFiled: April 16, 2012Date of Patent: December 8, 2015Assignee: CONTINENTAL TEVES AG & CO. OHGInventors: Hans-Jörg Feigel, Harald Biller
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Patent number: 9205821Abstract: A motor vehicle brake system operable in a brake-by-wire and fallback modes. The system includes a brake pedal (1), a master cylinder (2), a reservoir (4), a travel simulator (3), an electrically controllable pressure source (5), isolation valves (23a, 23b) pumps (32a, 32b) and a low-pressure accumulator (14a, 14b), an inlet valve (6a-6d) and an outlet valve (7a-7d) for each wheel brake (8, 9, 10, 11), valves (34a, 34b; 134a, 134b) connected to the pumps (32a, 32b), and a control and regulation unit (110, 210). A valve arrangement (23a, 23b) establishes for each brake circuit (I, II) a connection from the pressure chamber (17, 18) of the master cylinder (2) to the modulator admission pressure line (13a, 13b; 113a, 113b) and disconnects the connection when unenergized, the valve arrangement (23a, 23b) preventing the pressure source (5) from being subjected to pressure from the pressure chambers (17, 18).Type: GrantFiled: April 16, 2012Date of Patent: December 8, 2015Assignee: CONTINENTAL TEVES AG & CO. OHGInventors: Harald Biller, Peter Stauder, Marco Beisier, Hans-Jörg Feigel
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Patent number: 9174617Abstract: A braking system for motor vehicles. The system comprises a brake pedal, a travel simulator which is coupled via actuating-forces transmitting first mechanical connecting means to the brake pedal. A brake master cylinder having at least one pressure chamber and one piston. The pressure chamber is connected or connectable via a pressure line to at least one hydraulically actuable wheel brake, and an electrically controllable electromechanical drive device with which the piston of the brake master cylinder is actuable via a second mechanical connecting means. The electromechanical drive device is arranged between the brake pedal on one side and the brake master cylinder and the travel simulator on the other side. The first mechanical connecting means extends from the brake pedal through the drive device to the travel simulator.Type: GrantFiled: April 19, 2011Date of Patent: November 3, 2015Assignee: CONTINENTAL TEVES AG & CO. OHGInventor: Hans-Jorg Feigel
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Patent number: 9145119Abstract: A brake system includes a hydraulic actuating unit, which can be actuated by way of a brake pedal, a travel simulator interacting with the hydraulic actuating unit, a pressure medium reservoir under atmospheric pressure assigned to the hydraulic actuating unit, a first electrically controllable pressure supply device, a second electrically controllable pressure supply device, an electronic control unit and an electronically controllable pressure modulation device for setting wheel-specific brake pressures. The brake system preferably operates in a “brake-by-wire” mode but can also operate in a fallback mode. The second electrically controllable pressure supply device can provide boost volume during braking in a fallback mode.Type: GrantFiled: April 16, 2012Date of Patent: September 29, 2015Assignee: CONTINENTAL TEVES AG & CO. OHGInventors: Harald Biller, Hans-Jörg Feigel, Stefan A. Drumm, Steffen Linkenbach, Marco Besier