Patents by Inventor Erwin Michels

Erwin Michels 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).

  • Patent number: 11820349
    Abstract: A pneumatic brake pedal module for a “brake-by-wire” brake system of a vehicle is disclosed. The brake pedal module has a pivotably mounted brake pedal and having a damping unit, which is mechanically coupled to the brake pedal to generate a resistance when the brake pedal is actuated, such that the damping unit is subjected to tension when the brake pedal is actuated.
    Type: Grant
    Filed: July 19, 2022
    Date of Patent: November 21, 2023
    Assignee: ZF Active Safety GmbH
    Inventors: Erwin Michels, Peter Polke
  • Patent number: 11772626
    Abstract: A method for brake lining wear detection is disclosed. The method comprises detecting a wear state of a brake lining installed in the area of a wheel housing and producing a state signal that indicates the wear state. The method also comprises coupling the state signal into at least one electrical line that leads to an evaluation unit for the state signal. The at least one electrical line also transmits at least one other signal from or to at least one other device installed in the area of the wheel housing.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: October 3, 2023
    Assignee: ZF Active Safety GmbH
    Inventors: Erwin Michels, Benedikt Ohlig, Lutz Muders, Matthias Fuchs
  • Publication number: 20230271597
    Abstract: A method is disclosed for determining wear values on at least a first and a second vehicle brake of a motor vehicle. The first and second vehicle brakes are assigned to a first or second vehicle wheel of a same first wheel axle. The first vehicle brake has an actuator piston which presses a friction lining against a brake disc mounted such that it rotates in an actuating position, and an electromechanical actuator unit.
    Type: Application
    Filed: February 24, 2023
    Publication date: August 31, 2023
    Inventors: Erwin Michels, Benedikt Ohlig, Matthias Fuchs
  • Publication number: 20230031027
    Abstract: A pneumatic brake pedal module for a “brake-by-wire” brake system of a vehicle is disclosed. The brake pedal module has a pivotably mounted brake pedal and having a damping unit, which is mechanically coupled to the brake pedal to generate a resistance when the brake pedal is actuated, such that the damping unit is subjected to tension when the brake pedal is actuated.
    Type: Application
    Filed: July 19, 2022
    Publication date: February 2, 2023
    Inventors: Erwin Michels, Peter Polke
  • Publication number: 20230033814
    Abstract: A pneumatic brake pedal module for a brake-by-wire brake system of a vehicle is disclosed. The brake pedal module includes a pivotably mounted brake pedal and a damping unit. The damping unit is mechanically coupled to the brake pedal to generate a resistance when the brake pedal is actuated. The damping unit comprises a housing and a piston, which is mounted movably in the housing and divides an internal space of the housing into a pressure chamber and a vacuum chamber. The pressure chamber and the vacuum chamber are connected to one another in terms of flow. The piston has on its running surface an encircling annular space in which a ring seal is accommodated in an axially movable manner.
    Type: Application
    Filed: July 19, 2022
    Publication date: February 2, 2023
    Inventors: Erwin Michels, Peter Polke
  • Patent number: 11448275
    Abstract: The present disclosure relates to a method for operating a vehicle brake. The vehicle brake includes a hydraulic service brake having an actuating piston, which for generating a first braking force component is movable, under the action of a hydraulic pressure, into an actuating position in which the actuating piston presses a friction lining against a rotatingly supported brake disc, and an electric parking brake, with an actuating element, that is designed to build up a second braking force component that acts on the brake disc. The method includes ascertaining the hydraulic pressure, determining a first braking force component, establishing a second braking force component to be set by means of the parking brake, based on the first braking force component and a desired total braking force, and establishing a position of the actuating element of the parking brake to be set.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: September 20, 2022
    Assignee: ZF Active Safety GmbH
    Inventors: Erwin Michels, Benedikt Ohlig, Michael Bast, Matthias Fuchs
  • Patent number: 11312346
    Abstract: A hydraulic motor vehicle braking system comprises an electronic stability control (ESC) system of dual-circuit design, a first brake circuit which acts on one or more first wheel brakes, and a second brake circuit which acts on one or more second wheel brakes. The first brake circuit comprises a first hydraulic pressure generator which is electrically controllable for control interventions, and the second brake circuit comprises a second hydraulic pressure generator which is electrically controllable, independently of the first hydraulic pressure generator, for control interventions.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: April 26, 2022
    Assignee: ZF Active Safety GmbH
    Inventors: Erwin Michels, Benedikt Ohlig, Matthias Fuchs
  • Patent number: 11305743
    Abstract: A hydraulic motor vehicle brake system comprises a vehicle dynamic control system which comprises a first brake circuit which acts on at least one first wheel brake, and a second brake circuit which acts on at least one second wheel brake, the first brake circuit comprising a first hydraulic pressure generator and the second brake circuit comprising a second hydraulic pressure generator, which can be actuated electrically for control interventions. Furthermore, the hydraulic motor vehicle brake system comprises an electrically actuable third hydraulic pressure generator, and a controller which is configured to detect failure of at least one of the two brake circuits and a requirement of a control intervention on the at least one brake circuit, to actuate at least the third hydraulic pressure generator for assisting the control intervention.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: April 19, 2022
    Assignee: ZF Active Safety GmbH
    Inventors: Erwin Michels, Benedikt Ohlig, Matthias Fuchs
  • Patent number: 11124169
    Abstract: A motor vehicle system comprising a first electric parking brake actuation unit assigned to a first vehicle wheel, and a second electric parking brake actuation unit assigned to a second vehicle wheel. The system further comprises a first control unit which includes at least one first microprocessor and which is designed to control at least the first electric parking brake actuation unit and an anti-lock and/or vehicle stability control system. A second control unit of the system comprises at least one second microprocessor and is designed to control at least the second electric parking brake actuation unit and an electric braking power generator and/or an automatic transmission. In some variants, a separate parking brake control unit can be dispensed with as the braking brake control function is shared between control units that can be used for other purposes.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: September 21, 2021
    Assignee: ZF Active Safety GmbH
    Inventors: Erwin Michels, Benedikt Ohlig, Matthias Fuchs
  • Patent number: 11077838
    Abstract: The present disclosure relates to a method for operating a vehicle brake system which includes the following steps: (1) determining a first wear value, which indicates wear of the friction lining of the vehicle brake, by taking into account at least one of the relevant parameters related to the operational history of the vehicle; (2) In dependence upon whether the first wear value meets a predetermined criterion, measuring the wear of the friction lining by moving the parking brake unit and by recording the curve of operating parameters of the parking brake unit while moving; (3) determining, based on the measurement, a second wear value, which indicates wear of the friction lining of the vehicle brake. The present disclosure also relates to a vehicle braking system, as well as a computer program and a control unit for implementing the method.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: August 3, 2021
    Assignee: ZF Active Safety GmbH
    Inventors: Erwin Michels, Benedikt Ohlig, Michael Bast, Matthias Fuchs
  • Patent number: 11054023
    Abstract: The present disclosure relates to a parking brake system for a motorized vehicle, which uses a differential. Furthermore, the present disclosure relates to a differential for an automotive drive, which can be used by such a parking brake. The differential comprises a transmission housing, a transmission input, two transmission output shafts, and a rotary transmission for distributing performance effective on the transmission output shafts at the transmission input, the rotary transmission comprising at least four transmission elements, of which two transmission elements are configured as a central gear, at least one transmission element as a rotary gear, and a transmission element as a rotary gear carrier, wherein the rotary gear carrier is coupled with the transmission input and one of the central gears each is coupled with one of the transmission output shafts.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: July 6, 2021
    Assignee: ZF Active Safety GmbH
    Inventors: Benedikt Ohlig, Matthias Fuchs, Erwin Michels
  • Patent number: 11046289
    Abstract: A motor vehicle system comprising a first electric parking brake actuation unit assigned to a first vehicle wheel, and a second electric parking brake actuation unit assigned to a second vehicle wheel. The system further comprises a first control unit which includes at least one first microprocessor and which is designed to control the first electric parking brake actuation unit and does not allow the second electric parking brake actuation unit to be controlled. Furthermore, a second control unit is provided which comprises at least one second microprocessor and which is designed to control the second electric parking brake actuation unit and does not allow the first electric parking brake actuation unit to be controlled. The redundancy of the two control units increases the system safety. At the same time, the system complexity remains low since no individual control unit has to be designed to control all of the electric parking brake actuation units.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: June 29, 2021
    Assignee: ZF Active Safety GmbH
    Inventors: Erwin Michels, Benedikt Ohlig, Matthias Fuchs
  • Publication number: 20210129817
    Abstract: A hydraulic motor vehicle braking system comprises an electronic stability control (ESC) system of dual-circuit design, a first brake circuit which acts on one or more first wheel brakes, and a second brake circuit which acts on one or more second wheel brakes. The first brake circuit comprises a first hydraulic pressure generator which is electrically controllable for control interventions, and the second brake circuit comprises a second hydraulic pressure generator which is electrically controllable, independently of the first hydraulic pressure generator, for control interventions.
    Type: Application
    Filed: March 19, 2018
    Publication date: May 6, 2021
    Applicant: ZF Active Safety GmbH
    Inventors: Erwin Michels, Benedikt Ohlig, Matthias Fuchs
  • Patent number: 10933848
    Abstract: A method for operating a vehicle brake, wherein the vehicle brake comprises a service brake having an actuating piston, which can be moved into an actuation position in order to produce a braking force by the action of a hydraulic pressure, and wherein the vehicle brake also comprises a parking brake unit, which is designed to move over a first motion range without producing a braking force and is also designed to move over a second motion range, in which the parking brake unit is supported against the actuating piston and a braking force is thus changed, wherein the first and second motion ranges transition into each other at a support point, wherein the method is performed in the pressureless state or at a hydraulic pressure below a predefined threshold value and comprises the following steps: a) moving the parking brake unit from the first into the second motion range or vice versa; b) recording the curve of an operating parameter of the parking brake unit during step a); and c) determining the position of
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: March 2, 2021
    Assignee: ZF Active Safety GmbH
    Inventors: Michael Bast, Benedikt Ohlig, Matthias Fuchs, Erwin Michels
  • Publication number: 20200307541
    Abstract: A method for brake lining wear detection is disclosed. The method comprises detecting a wear state of a brake lining installed in the area of a wheel housing and producing a state signal that indicates the wear state. The method also comprises coupling the state signal into at least one electrical line that leads to an evaluation unit for the state signal. The at least one electrical line also transmits at least one other signal from or to at least one other device installed in the area of the wheel housing.
    Type: Application
    Filed: April 20, 2018
    Publication date: October 1, 2020
    Applicant: ZF Active Safety GmbH
    Inventors: Erwin Michels, Benedikt Ohlig, Lutz Muders, Matthias Fuchs
  • Publication number: 20200173508
    Abstract: The present disclosure relates to a method for operating a vehicle brake. The vehicle brake includes a hydraulic service brake having an actuating piston, which for generating a first braking force component is movable, under the action of a hydraulic pressure, into an actuating position in which the actuating piston presses a friction lining against a rotatingly supported brake disc, and an electric parking brake, with an actuating element, that is designed to build up a second braking force component that acts on the brake disc. The method includes ascertaining the hydraulic pressure, determining a first braking force component, establishing a second braking force component to be set by means of the parking brake, based on the first braking force component and a desired total braking force, and establishing a position of the actuating element of the parking brake to be set.
    Type: Application
    Filed: November 27, 2019
    Publication date: June 4, 2020
    Applicant: ZF Active Safety GmbH
    Inventors: Erwin Michels, Benedikt Ohlig, Michael Bast, Matthias Fuchs
  • Publication number: 20200171940
    Abstract: The invention relates to a parking brake system for a motorized vehicle, which uses a drive train. Furthermore, the invention relates to a drive train for a motorized vehicle, comprising a transmission drivingly couplable with a drive machine and a differential operatively connected to a output shaft of the transmission, wherein the differential has a transmission housing, a transmission input, two transmission output shafts, and a rotary gear transmission. The transmission input is operatively connected to the output shaft of the transmission and the transmission output shafts are each input-connectable to a vehicle wheel. With the drive train, at least two brake elements are provided for a parking brake, of which a first brake element is used for locking one of the transmission output shafts of the differential and a second brake element for locking the transmission input of the differential.
    Type: Application
    Filed: May 18, 2018
    Publication date: June 4, 2020
    Applicant: ZF Active Safety GmbH
    Inventors: Benedikt Ohlig, Erwin Michels
  • Publication number: 20200124168
    Abstract: The present disclosure relates to a parking brake system for a motorized vehicle, which uses a differential. Furthermore, the present disclosure relates to a differential for an automotive drive, which can be used by such a parking brake. The differential comprises a transmission housing, a transmission input, two transmission output shafts, and a rotary transmission for distributing performance effective on the transmission output shafts at the transmission input, the rotary transmission comprising at least four transmission elements, of which two transmission elements are configured as a central gear, at least one transmission element as a rotary gear, and a transmission element as a rotary gear carrier, wherein the rotary gear carrier is coupled with the transmission input and one of the central gears each is coupled with one of the transmission output shafts.
    Type: Application
    Filed: May 18, 2018
    Publication date: April 23, 2020
    Applicant: ZF Active Safety GmbH
    Inventors: Benedikt Ohlig, Matthias Fuchs, Erwin Michels
  • Publication number: 20200114888
    Abstract: A hydraulic motor vehicle brake system comprises a vehicle dynamic control system which comprises a first brake circuit which acts on at least one first wheel brake, and a second brake circuit which acts on at least one second wheel brake, the first brake circuit comprising a first hydraulic pressure generator and the second brake circuit comprising a second hydraulic pressure generator, which can be actuated electrically for control interventions. Furthermore, the hydraulic motor vehicle brake system comprises an electrically actuable third hydraulic pressure generator, and a controller which is configured to detect failure of at least one of the two brake circuits and a requirement of a control intervention on the at least one brake circuit, to actuate at least the third hydraulic pressure generator for assisting the control intervention.
    Type: Application
    Filed: March 19, 2018
    Publication date: April 16, 2020
    Applicant: ZF Active Safety GmbH
    Inventors: Erwin Michels, Benedikt Ohlig, Matthias Fuchs
  • Publication number: 20200070788
    Abstract: A motor vehicle system comprising a first electric parking brake actuation unit assigned to a first vehicle wheel, and a second electric parking brake actuation unit assigned to a second vehicle wheel. The system further comprises a first control unit which includes at least one first microprocessor and which is designed to control the first electric parking brake actuation unit and does not allow the second electric parking brake actuation unit to be controlled. Furthermore, a second control unit is provided which comprises at least one second microprocessor and which is designed to control the second electric parking brake actuation unit and does not allow the first electric parking brake actuation unit to be controlled. The redundancy of the two control units increases the system safety. At the same time, the system complexity remains low since no individual control unit has to be designed to control all of the electric parking brake actuation units.
    Type: Application
    Filed: October 10, 2017
    Publication date: March 5, 2020
    Applicant: Lucas Automotive GmbH
    Inventors: Erwin Michels, Benedikt Ohlig, Matthias Fuchs