Patents by Inventor Herbert Vollert

Herbert Vollert 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).

  • Publication number: 20240140375
    Abstract: A method for controlling a hydraulic volume in a system comprising a power brake and a driving dynamics control. The system is configured to hydraulically couple the power brake to the driving dynamics control. The method includes: providing a signal to build up a first dynamic pressure for the driving dynamics control; generating a first control signal by means of the driving dynamics control, and providing the first control signal to the power brake in order to provide the hydraulic volume at the hydraulic coupling; generating a second hydraulic pressure by means of the power brake in order to provide the hydraulic volume at the hydraulic coupling; providing the hydraulic volume at the second hydraulic pressure at the hydraulic coupling by means of the power brake; and building up the first hydraulic pressure in the driving dynamics control by means of the provided hydraulic volume.
    Type: Application
    Filed: March 17, 2022
    Publication date: May 2, 2024
    Inventors: Ralf Kinder, Herbert Vollert, Markus Weigel
  • Patent number: 11713030
    Abstract: A control apparatus/method for operating an electromechanical brake booster of a vehicle braking system, including: applying control to an electromechanical brake booster motor in consideration at least of a braking definition signal regarding a braking input of a driver and/or automatic speed control system of the vehicle (ACC); specifying, in consideration at least of the braking definition signal, a target motor force of the electromechanical brake booster motor or a target brake application force of the electromechanical brake booster into a brake master cylinder, downstream from the electromechanical brake booster, of the braking system; and applying control to the electromechanical brake booster motor in consideration of a force difference between the specified target motor force and an estimated/measured actual motor force of the motor, or between the specified target brake application force and an estimated/measured actual brake application force of the electromechanical brake booster into the downstr
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: August 1, 2023
    Assignee: ROBERT BOSCH GMBH
    Inventors: Herbert Vollert, Christian Binder, Manfred Gerdes, Oliver Fuchs, Patrick Christian Schaefer
  • Patent number: 11572048
    Abstract: The disclosure relates to a control device and a corresponding method for operating an electromechanical brake booster of a brake system of a vehicle, comprising an electronics unit that defines a target variable with respect to a target rotational speed of a motor of the electromechanical brake booster, taking into account a brake input signal with respect to a braking request, and that sends at least one control signal to the motor. The electronics unit defines a maximum target variable with respect to a maximum target rotational speed of the motor, taking into account a current intensity of a motor current of the motor and a current angle of rotation of a rotor of the motor, and defines the target variable with respect to the target rotational speed of the motor of the electromechanical brake booster to be at the most equal to the defined maximum target variable.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: February 7, 2023
    Assignee: Robert Bosch GmbH
    Inventors: Herbert Vollert, Dirk Mahnkopf, Christian Binder, Manfred Gerdes, Oliver Fuchs
  • Patent number: 11572051
    Abstract: In an electronic evaluation system for a vehicle braking system equipped with an electromechanical brake booster, a method for estimating a brake master cylinder pressure includes: estimating a first initial value of the pressure based on a first current intensity of a current of a motor of the booster at the first time and on a first rotation angle of a rotor of the motor at the first time; specifying a correction value as a difference between the first initial value and a measured value of the pressure; estimating a second initial value of the pressure based on a second current intensity of the current at the second time and on a second rotation angle of the rotor at the second time; and specifying, based on the second initial value and the correction value, an estimated value of the pressure at the second time.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: February 7, 2023
    Assignee: Robert Bosch GmbH
    Inventors: Christian Binder, Manfred Gerdes, Herbert Vollert
  • Publication number: 20220314945
    Abstract: A control unit for a brake system of a vehicle. Using a sensor signal, provided by a sensor and is in regard to a distance moved by a driver braking-force transmission component or by a booster force transmission component, the control unit discerns if a movable piston of a master brake cylinder of the brake system is moved by a brake actuating distance equal to a specified, limiting brake actuating distance, and, possibly, to output at least one control signal to a pump control unit of at least one hydraulic pump of the brake system. The pump control unit can be activated by the at least one control signal so that brake fluid may be conveyed from a brake fluid reservoir of the brake system into at least one wheel brake cylinder of the brake system using at least one hydraulic pump controlled by the pump control unit.
    Type: Application
    Filed: May 27, 2020
    Publication date: October 6, 2022
    Inventors: Herbert Vollert, Hagen Kuckert, Johannes Willkomm
  • Patent number: 11404862
    Abstract: A method is described for operating an electrical system, in particular, of a motor vehicle, which includes at least one electrical consumer, at least one energy source for electrical energy, and at least one control unit, the consumer being test activated by the control unit for the purpose of initializing a start of the system and a voltage level of an electrical voltage in the system being monitored and compared to a predefinable minimum value, and the activation being interrupted if the voltage level falls below the minimum value, and the consumer being subsequently test reactivated. It is provided that the number of the interruptions is counted and the consumer is deactivated at least for a predefinable period of time upon reaching a predefinable maximum number.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: August 2, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Christian Meister, Christian Michael Praetorius, Helmut Suelzle, Otmar Bussmann, Herbert Vollert, Zied Terchella
  • Publication number: 20220161773
    Abstract: A connection of a piston-cylinder unit of an power brake pressure generator of an electrohydraulic power vehicle braking system to an unpressurized brake fluid reservoir with the aid of a pressure limiting valve and a controllable valve. The pressure limiting valve prevents pressure spikes in the vehicle braking system if inlet valves of hydraulic wheel brakes of the vehicle braking system are closed during a pressure buildup with the aid of the power brake pressure generator. Brake fluid may be drawn in or discharged from the brake fluid reservoir via the controllable valve during a slip control.
    Type: Application
    Filed: November 30, 2019
    Publication date: May 26, 2022
    Inventors: Andreas Weh, Herbert Vollert, Joerg Riethmueller, Martin Hagspiel, Michael Wilcox, Andreas Bresser
  • Publication number: 20220097666
    Abstract: Wheel brakes of one vehicle axle of a dual-circuit hydraulic-power vehicle brake system for an electric or hybrid vehicle are connected to one brake circuit. Brake pressure is applied by a power brake-pressure generator to the two brake circuits with a time offset. It is thereby possible to compensate for a deceleration effect of an electric motor of the vehicle, which is operated as a generator during a braking.
    Type: Application
    Filed: August 27, 2021
    Publication date: March 31, 2022
    Inventors: Christian Woerz, Dirk Foerch, Herbert Vollert, Jens Wagner, Matthias Kistner
  • Patent number: 11273815
    Abstract: A braking system for a vehicle, which includes a control system configured to: actuate a pressure generation device in accordance with a braking request signal to generate the brake pressure; ascertain an operational state of the pressure generation device; ascertain a position of a displacement piston of a brake master cylinder based on the braking request signal; and couple a pressure modulation device to a brake master cylinder volume and actuate the device so that the pressure modulation device conveys brake fluid out of the brake master cylinder volume into the wheel brake circuit, if the operational status of the pressure generation device is ascertained to be nonoperational and the displacement piston is in the idle position.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: March 15, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Herbert Vollert, Jonathan Schnur, Markus Weigel
  • Publication number: 20210129821
    Abstract: In an electronic evaluation system for a vehicle braking system equipped with an electromechanical brake booster, a method for estimating a brake master cylinder pressure includes: estimating a first initial value of the pressure based on a first current intensity of a current of a motor of the booster at the first time and on a first rotation angle of a rotor of the motor at the first time; specifying a correction value as a difference between the first initial value and a measured value of the pressure; estimating a second initial value of the pressure based on a second current intensity of the current at the second time and on a second rotation angle of the rotor at the second time; and specifying, based on the second initial value and the correction value, an estimated value of the pressure at the second time.
    Type: Application
    Filed: November 30, 2017
    Publication date: May 6, 2021
    Applicants: Robert Bosch GmbH, Robert Bosch GmbH
    Inventors: Christian Binder, Manfred Gerdes, Herbert Vollert
  • Publication number: 20210129819
    Abstract: A control apparatus/method for operating an electromechanical brake booster of a vehicle braking system, including: applying control to an electromechanical brake booster motor in consideration at least of a braking definition signal regarding a braking input of a driver and/or automatic speed control system of the vehicle (ACC); specifying, in consideration at least of the braking definition signal, a target motor force of the electromechanical brake booster motor or a target brake application force of the electromechanical brake booster into a brake master cylinder, downstream from the electromechanical brake booster, of the braking system; and applying control to the electromechanical brake booster motor in consideration of a force difference between the specified target motor force and an estimated/measured actual motor force of the motor, or between the specified target brake application force and an estimated/measured actual brake application force of the electromechanical brake booster into the downstr
    Type: Application
    Filed: November 30, 2017
    Publication date: May 6, 2021
    Inventors: Herbert Vollert, Christian Binder, Manfred Gerdes, Oliver Fuchs, Patrick Christian Schaefer
  • Patent number: 10875512
    Abstract: A method for boosting a braking force in an electronically slip-controllable vehicle brake system, as well as an electronically slip-controllable vehicle brake system. Vehicle brake systems of this kind are at least equipped with a power brake unit and electronic slip-controllable vehicle brake system. In the case of a malfunction of the power brake unit, the traction-slip control device (92) takes over the boosting. A method for determining a composite signal which is adjusted by controlling a drive of a pressure generator of the slip-controllable vehicle brake system accordingly. To this end, an electronic control unit records two mutually independent input quantities, converts these input quantities into evaluation signals and sums the evaluation signals mathematically to yield a composite signal. The latter represents a setpoint brake pressure that the slip-controllable vehicle brake system supplies by controlling a pressure generator accordingly.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: December 29, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Florian Haag, Herbert Vollert, Jens Kolarsky
  • Publication number: 20200353909
    Abstract: A braking system for a vehicle, which includes a control system configured to: actuate a pressure generation device in accordance with a braking request signal to generate the brake pressure; ascertain an operational state of the pressure generation device; ascertain a position of a displacement piston of a brake master cylinder based on the braking request signal; and couple a pressure modulation device to a brake master cylinder volume and actuate the device so that the pressure modulation device conveys brake fluid out of the brake master cylinder volume into the wheel brake circuit, if the operational status of the pressure generation device is ascertained to be nonoperational and the displacement piston is in the idle position.
    Type: Application
    Filed: April 23, 2020
    Publication date: November 12, 2020
    Inventors: Herbert Vollert, Jonathan Schnur, Markus Weigel
  • Publication number: 20200086844
    Abstract: The disclosure relates to a control device and a corresponding method for operating an electromechanical brake booster of a brake system of a vehicle, comprising an electronics unit that defines a target variable with respect to a target rotational speed of a motor of the electromechanical brake booster, taking into account a brake input signal with respect to a braking request, and that sends at least one control signal to the motor. The electronics unit defines a maximum target variable with respect to a maximum target rotational speed of the motor, taking into account a current intensity of a motor current of the motor and a current angle of rotation of a rotor of the motor, and defines the target variable with respect to the target rotational speed of the motor of the electromechanical brake booster to be at the most equal to the defined maximum target variable.
    Type: Application
    Filed: November 30, 2017
    Publication date: March 19, 2020
    Inventors: Herbert Vollert, Dirk Mahnkopf, Christian Binder, Manfred Gerdes, Oliver Fuchs
  • Publication number: 20200059087
    Abstract: A method is described for operating an electrical system, in particular, of a motor vehicle, which includes at least one electrical consumer, at least one energy source for electrical energy, and at least one control unit, the consumer being test activated by the control unit for the purpose of initializing a start of the system and a voltage level of an electrical voltage in the system being monitored and compared to a predefinable minimum value, and the activation being interrupted if the voltage level falls below the minimum value, and the consumer being subsequently test reactivated. It is provided that the number of the interruptions is counted and the consumer is deactivated at least for a predefinable period of time upon reaching a predefinable maximum number.
    Type: Application
    Filed: August 7, 2019
    Publication date: February 20, 2020
    Inventors: Christian Meister, Christian Michael Praetorius, Helmut Suelzle, Otmar Bussmann, Herbert Vollert, Zied Terchella
  • Publication number: 20190315326
    Abstract: A method for boosting a braking force in an electronically slip-controllable vehicle brake system, as well as an electronically slip-controllable vehicle brake system. Vehicle brake systems of this kind are at least equipped with a power brake unit and electronic slip-controllable vehicle brake system. In the case of a malfunction of the power brake unit, the traction-slip control device (92) takes over the boosting. A method for determining a composite signal which is adjusted by controlling a drive of a pressure generator of the slip-controllable vehicle brake system accordingly. To this end, an electronic control unit records two mutually independent input quantities, converts these input quantities into evaluation signals and sums the evaluation signals mathematically to yield a composite signal. The latter represents a setpoint brake pressure that the slip-controllable vehicle brake system supplies by controlling a pressure generator accordingly.
    Type: Application
    Filed: October 19, 2017
    Publication date: October 17, 2019
    Inventors: Florian Haag, Herbert Vollert, Jens Kolarsky
  • Patent number: 10308231
    Abstract: A method for controlling a brake booster in a hydraulic brake system, in which the smallest partial pressure target value of at least three partial pressure target values is ascertained, and is then defined as the target pressure value and is then set using a brake booster.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: June 4, 2019
    Assignee: ROBERT BOSCH GMBH
    Inventors: Michael Butz, Manfred Gerdes, Patrick Christian Schaefer, Herbert Vollert
  • Patent number: 10040434
    Abstract: An electromechanical brake booster is provided for a braking system of a vehicle, having a valve body and an input rod, the valve body, to which at a displacement motion in a brake application direction has been imparted, being displaceable up to a differential travel equal to a limit differential travel with reference to the input rod, and then a co-displacement motion in the brake application direction being impartable to the input rod if the co-displacement motion is acted against at most by a retention force below a predefined threshold value, and at least one buffer element being disposed on the input rod and/or on the valve body in such a way that if a retention force above the predefined threshold value acts against the co-displacement motion, the differential travel is increasable above the limit differential travel by way of a deformation of the at least one buffer element.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: August 7, 2018
    Assignee: ROBERT BOSCH GMBH
    Inventors: Manfred Gerdes, Herbert Vollert
  • Patent number: 9932023
    Abstract: The present invention relates to a braking device and to a braking system, each having a master brake cylinder (10) having at least one first pressure chamber (12) that is subdivided or is able to be subdivided at least into a first partial volume (12a) and a second partial volume (12b), which are hydraulically connectable or connected to a brake fluid reservoir (24), a first brake circuit (28) being hydraulically connectable or connected to the first partial volume (12a), and having a valve device (38) that is mechanically designed in such a way that a pressure buildup up to a mechanically specified limit pressure may be brought about in the second partial volume (12b), brake fluid being transferable at least into the first brake circuit (28) via at least one subcomponent (38a) of the valve device (38), and an exceeding of the limit pressure in the second partial volume (12b) being prevented.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: April 3, 2018
    Assignee: ROBERT BOSCH GMBH
    Inventors: Herbert Vollert, Oliver Leibfried, Stefan Strengert, Sr., Urs Bauer, Volkmar Schlotter, Michael Kunz, Matthias Kistner, Karl-Heinz Willmann, Matthias Schanzenbach, Suekrue Senol, Dagobert Masur
  • Patent number: 9827965
    Abstract: A method for operating a regenerative braking system of a vehicle includes: applying control to at least one valve of a brake circuit, before and/or during operation of a generator of the braking system, so that brake fluid is displaced out of a brake master cylinder and/or out of the at least one brake circuit into at least one reservoir volume; defining a target force difference variable regarding a booster force exerted by a brake booster in consideration of at least one of a generator braking torque information item, a brake master cylinder pressure variable, and an evaluation variable derived from at least the generator braking torque information item or the brake master cylinder pressure variable; and controlling the brake booster in consideration of the defined target force difference variable.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: November 28, 2017
    Assignee: ROBERT BOSCH GMBH
    Inventors: Jens Kolarsky, Michael Kunz, Stefan Strengert, Herbert Vollert