Patents by Inventor Harald Retsch

Harald Retsch 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).

  • Control device and control method for the drive unit of a windshield wiper system
    Patent number: 9527480
    Abstract: The invention relates to a control device (160) for a drive unit (120) of a vehicle windshield wiper system (100) comprising at least one wiper arm (140). The control device (160) is designed to determine a load quantity (L) of the drive unit (120) and to set the wiping frequency (WH) of the wiper arm (140) on the basis of the ratio of the load quantity (L) to at least one load threshold value (LS). Furthermore, the control device (160) is designed to set the wiping frequency (WH) depending on the current speed (v) of the vehicle.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: December 27, 2016
    Assignee: Robert Bosch GmbH
    Inventors: Peter Braun, Norbert Wegner, Harald Retsch
  • Device and method for actuating a drive unit of a wiper system
    Patent number: 9469275
    Abstract: The invention relates to a device and a method for actuating a wiper system. The device comprises a drive unit (2) for driving at least one wiper arm (4), and a control unit (6), wherein the control unit (6) is designed to set a wiping frequency of the wiper arm (4) as a function of a load variable which is dependent on the torque which is to be applied by the drive unit (2) during a wiping operation.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: October 18, 2016
    Assignee: Robert Bosch GmbH
    Inventors: Peter Braun, Norbert Wegner, Harald Retsch
  • CONTROL DEVICE AND CONTROL METHOD FOR THE DRIVE UNIT OF A WINDSHIELD WIPER SYSTEM
    Publication number: 20150127219
    Abstract: The invention relates to a control device (160) for a drive unit (120) of a vehicle windshield wiper system (100) comprising at least one wiper arm (140). The control device (160) is designed to determine a load quantity (L) of the drive unit (120) and to set the wiping frequency (WH) of the wiper arm (140) on the basis of the ratio of the load quantity (L) to at least one load threshold value (LS). Furthermore, the control device (160) is designed to set the wiping frequency (WH) depending on the current speed (v) of the vehicle.
    Type: Application
    Filed: January 15, 2015
    Publication date: May 7, 2015
    Inventors: Peter Braun, Norbert Wegner, Harald Retsch
  • Control device and control method for the drive unit of a windshield wiper system
    Patent number: 8963464
    Abstract: The invention relates to a control device (160) for a drive unit (120) of a vehicle windshield wiper system (100) comprising at least one wiper arm (140). The control device (160) is designed to determine a load quantity (L) of the drive unit (120) and to set the wiping frequency (WH) of the wiper arm (140) on the basis of the ratio of the load quantity (L) to at least one load threshold value (LS). Furthermore, the control device (160) is designed to set the wiping frequency (WH) depending on the current speed (v) of the vehicle.
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: February 24, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Peter Braun, Norbert Wegner, Harald Retsch
  • CONTROL DEVICE AND CONTROL METHOD FOR THE DRIVE UNIT OF A WINDSHIELD WIPER SYSTEM
    Publication number: 20120266404
    Abstract: The invention relates to a control device (160) for a drive unit (120) of a vehicle windshield wiper system (100) comprising at least one wiper arm (140). The control device (160) is designed to determine a load quantity (L) of the drive unit (120) and to set the wiping frequency (WH) of the wiper arm (140) on the basis of the ratio of the load quantity (L) to at least one load threshold value (LS). Furthermore, the control device (160) is designed to set the wiping frequency (WH) depending on the current speed (v) of the vehicle.
    Type: Application
    Filed: October 6, 2010
    Publication date: October 25, 2012
    Applicant: ROBERT BOSCH GMBH
    Inventors: Peter Braun, Norbert Wegner, Harald Retsch
  • DEVICE AND METHOD FOR ACTUATING A DRIVE UNIT OF A WIPER SYSTEM
    Publication number: 20090282636
    Abstract: The invention relates to a device and a method for actuating a wiper system. The device comprises a drive unit (2) for driving at least one wiper arm (4), and a control unit (6), wherein the control unit (6) is designed to set a wiping frequency of the wiper arm (4) as a function of a load variable which is dependent on the torque which is to be applied by the drive unit (2) during a wiping operation.
    Type: Application
    Filed: October 31, 2007
    Publication date: November 19, 2009
    Applicant: ROBERT BOSCH GMBH
    Inventors: Peter Braun, Norbert Wegner, Harald Retsch