Patents by Inventor Alexander Hoegerle

Alexander Hoegerle 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).

  • Method for controlling an axial piston pump and drive unit with such an axial piston pump and hydrostatic traction drive with such a drive unit
    Patent number: 10955052
    Abstract: In a drive unit which has an axial piston pump and an electronic control unit, the axial piston pump is pivoted with a method in which pressure-reducing valves which act in opposition to one another are suddenly energized. Since in this respect no orifices are provided in the adjustment device, a so-called initiation jump of the excited current gives rise to a sudden reduction in the assigned actuating pressure or the actuating pressure difference formed therefrom. Then, a zero crossover jump of the excited current or of the excited currents is carried out in order to overcome the centering spring and therefore ensure a continuous zero crossover of the axial piston pump. Furthermore, a hydrostatic traction drive includes such a drive unit.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: March 23, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Alexander Hoegerle, Franz Werner, Matthias Mueller, Norman Brix, Ronny Herrmann, Sophia Karg, Steffen Mutschler, Tobias Mueller
  • Method for Controlling an Axial Piston Pump and Drive Unit with such an Axial Piston Pump and Hydrostatic Traction Drive with such a Drive Unit
    Publication number: 20200103023
    Abstract: In a drive unit which has an axial piston pump and an electronic control unit, the axial piston pump is pivoted with a method in which pressure-reducing valves which act in opposition to one another are suddenly energized. Since in this respect no orifices are provided in the adjustment device, a so-called initiation jump of the excited current gives rise to a sudden reduction in the assigned actuating pressure or the actuating pressure difference formed therefrom. Then, a zero crossover jump of the excited current or of the excited currents is carried out in order to overcome the centering spring and therefore ensure a continuous zero crossover of the axial piston pump. Furthermore, a hydrostatic traction drive includes such a drive unit.
    Type: Application
    Filed: September 26, 2019
    Publication date: April 2, 2020
    Inventors: Alexander Hoegerle, Franz Werner, Matthias Mueller, Norman Brix, Ronny Herrmann, Sophia Karg, Steffen Mutschler, Tobias Mueller