Doduco Gmbh

Other

Lisa Draexlmaier Gmbh

Beru Ag

Ami Doduco Gmbh

Gunter Uhl

Norbert Normann

Gunter Lothar Schulze

Ralf Kessler

Michael Wortberg

Michael Haussner

Heinz-Georg Schmitz

Dieter Grohmann

A circuit () for voltage stabilization in an onboard power supply (), particularly for motor vehicles, which is electrically connected between the onboard power supply () to be stabilized and a first energy store (E) is disclosed. The circuit () includes a diode element () which contains a plurality of semiconductor switches () connected in parallel. The circuit () also includes a pilot and control circuit (). The control circuit () determines the level of a current flowing through the diode element () and controls the semiconductor switches () of the diode element () on the basis of the determined current level. The circuit () includes a second energy store (E) which is electrically connected to the diode element () and to the onboard power supply ().

Circuit for voltage stabilization in an onboard power supply

A tire pressure monitoring device includes a pressure measurement sensor provided on each of the wheels to be monitored, a transmitter arranged near each pressure measurement sensor for sending signals representative of the pressure determined by the pressure measurement sensor, respective antennas for receiving the signals, the antennas being arranged on the vehicle chassis near the respective wheel. Each antenna is formed by making use of a separate electric line belonging to another monitoring system that is associated to the same wheel or is formed by making use of a sensor belonging to another monitoring system associated to the same wheels. Alternatively an electric line that leads to another consumer which is associated to the respective wheel, like a lamp, is used as an antenna.

Device for measuring vehicle tire pressure

A glow plug comprises a heating rod with an inner heater coil and optionally at least one control coil, the heating rod being insulated from the glow plug body and is provided with a plug-type or screw terminal for the power supply voltage. Furthermore, the terminal (4) has an electronic component (6), preferably a chip, with a terminal (7) connected to the power supply voltage, a terminal (8) connected to the glow tube (1.3) and a terminal (9) connected to the body (3). The electronic component (6) is designed as a control element for switching the functioning of the glow plug between a heating function and a sensing function for measuring the ion flow in the combustion space area in proximity to the heating rod (1).

Glow plug with electronic component for switching between heating and

Device for controlling the tire pressure of automobiles by means of a

Method of operating a device for monitoring vehicle-tire pressures and

Method of operating tire pressure signalling devices on wheels fitted

Growing community of inventors

Helmstadt-Bargen, Germany

Gunter Uhl