Patents by Inventor Christian Ruland

Christian Ruland 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).

  • Device and method for checking safety-relevant switch-off paths in control units during ongoing engine operation
    Patent number: 11371457
    Abstract: A device and a method for checking switch-off paths in control units of internal combustion engines during ongoing engine operation.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: June 28, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Andre Vogel, Christian Ruland, Sven Faehnle, Wolfgang Haag
  • DEVICE AND METHOD FOR CHECKING SAFETY-RELEVANT SWITCH-OFF PATHS IN CONTROL UNITS DURING ONGOING ENGINE OPERATION
    Publication number: 20210372339
    Abstract: A device and a method for checking switch-off paths in control units of internal combustion engines during ongoing engine operation.
    Type: Application
    Filed: June 6, 2019
    Publication date: December 2, 2021
    Inventors: Andre Vogel, Christian Ruland, Sven Faehnle, Wolfgang Haag
  • Method for operating a motor control unit for a drive system
    Patent number: 8912745
    Abstract: A method for operating a drive motor of a drive system, including the following: providing a control variable, which is ascertained as a function of one or multiple state variable(s) of the drive system and as a function of a default variable, to an output stage for operating the drive motor; reading the control variable previously provided to the output stage back from the output stage to obtain a read-back control variable; ascertaining a back-calculated torque from the read-back control variable; comparing the back-calculated torque and a predefined monitoring torque; and providing the control variable or an alternative control variable ascertained from the monitoring torque to the output stage as a function of a result of the comparison for the purpose of operating the drive motor.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: December 16, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Christian Ruland, Oliver Heim
  • Method and device for operating a drive unit
    Patent number: 8838306
    Abstract: In a method and a device for operating a drive unit, a first output variable of the drive unit is restricted; a setpoint value of a second output variable of the drive unit is specified; and an actual value of the second output variable of the drive unit is determined. The setpoint value is compared with the actual value, and if it is determined that the actual value does not exceed the setpoint value, then the first output variable is restricted to a first value. If it is determined that the actual value exceeds the setpoint value, then the first output variable is restricted to a second value smaller than the first value.
    Type: Grant
    Filed: July 21, 2008
    Date of Patent: September 16, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Guenter Kettenacker, Christian Ruland, Klaus Schwarze
  • Method and device for specifying an output variable of a drive unit
    Patent number: 8423248
    Abstract: In a method for checking the operation of specifying an output variable of a drive unit, when a setpoint value of the output variable is specified, a check is performed as to whether this specification of the setpoint is caused by an operation of the control element. If it is determined that this is not the case, then an error is detected.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: April 16, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Guenter Kettenacker, Christian Ruland, Maria-Dolores Sanchez Moreno
  • METHOD AND DEVICE FOR OPERATING A DRIVE UNIT
    Publication number: 20100198437
    Abstract: In a method and a device for operating a drive unit, a first output variable of the drive unit is restricted; a setpoint value of a second output variable of the drive unit is specified; and an actual value of the second output variable of the drive unit is determined. The setpoint value is compared with the actual value, and if it is determined that the actual value does not exceed the setpoint value, then the first output variable is restricted to a first value. If it is determined that the actual value exceeds the setpoint value, then the first output variable is restricted to a second value smaller than the first value.
    Type: Application
    Filed: July 21, 2008
    Publication date: August 5, 2010
    Inventors: Guenter Kettenacker, Christian Ruland, Klaus Schwarze
  • Method and device for specifying an output variable of a drive unit
    Publication number: 20090043464
    Abstract: In a method for checking the operation of specifying an output variable of a drive unit, when a setpoint value of the output variable is specified, a check is performed as to whether this specification of the setpoint is caused by an operation of the control element. If it is determined that this is not the case, then an error is detected.
    Type: Application
    Filed: July 29, 2008
    Publication date: February 12, 2009
    Inventors: Guenter Kettenacker, Christian Ruland, Maria-Dolores Sanchez Moreno