公开(公告)号：US12043098B2

公开(公告)日：2024-07-23

申请号：US17297500

申请日：2020-03-04

Applicant: Webasto SE

Inventor： Tobias Fritz ,  Benedikt Kainz ,  Heinz Seiler ,  Oliver Heisel ,  Michael Huelsen

IPC: E05F15/659 ,  B60J7/057 ,  G10K9/12

CPC classification number: B60J7/0573 ,  G10K9/12

Abstract: A method for actuating an electric motor with a motor control signal with an application-specific frequency, which signal is provided by an electronic motor control unit, wherein the electric motor is used in a vehicle roof for activating a component of this roof while being connected to a region of the roof. Embodiments provide that the electric motor can be actuated by the motor control unit with an additional signal whose frequency and amplitude are suitable for causing the region of the vehicle roof to which said electric motor is connected to oscillate in order to generate sound.

公开(公告)号：US11665782B2

公开(公告)日：2023-05-30

申请号：US16095829

申请日：2017-04-28

Applicant: Webasto SE

Inventor： Alexander Henne ,  Norbert Botzenmayer ,  Hans Rechberger ,  Heinz Seiler

IPC: H05B1/02

CPC classification number: H05B1/0202 ,  H05B1/0236 ,  H05B2203/035

Abstract: An assembly, comprising a heat-dissipating first resistor, control device for controlling the first resistor, as well as a grounded component, which lies on a potential without direct relation to a control voltage.



The first resistor is arranged in spatial vicinity of the grounded component and comprising a first and a second connection.
The control device comprises a first switching device and a second switching device.
The first switching device, first resistor and second switching device form a series connection.
A compensation device is configured such that in the On-state of the first resistor a voltage is applied between the first and second connection, wherein the resistor in the off-state is held on an in-between potential that lies between the first and the second potential and/or
the control device is configured to trigger the first resistor in a pulse width modulated fashion, such that the first as well as the second switching device are switched synchronously.