Other

Daimler Ag

Daimler-benz Ag

Andreas Stihl

Jurgen Trost

Thomas Maier

Eberhard Schieber

Wolfram Thomas

Gert Volk

Markus Raab

Martin Rothmund

Matthias Gut

Thomas Kind

Detlef Beckmann

G&uuml;nter Ahlert

Eberhard Scheiber

Diane Trost

In a method for monitoring the condition of a vehicle driver, the markings () of the lane in which the vehicle is moving are detected and a direction of travel which the vehicle has to follow in order to stay in the lane is determined. In this case, the vehicle driver is assisted in staying in the lane by the steering wheel being automatically centered. If the vehicle exactly follows the determined direction of travel over a certain period of time, this is a sign that the vehicle driver is not actively steering the vehicle, and a warning signal is generated.

Active lane assistant

A hydraulic power steering system for non-tracked vehicles, particularly motor vehicles, has a steering adjustment of the steered vehicle wheels which takes place of a hydraulic actuating assembly which can be connected by a change-over valve with one respectively of two or several hydraulic circuits. In normal operation, the circuits operate in parallel and functionally in the same direction so that, in the event of a disturbance, a change-over can take place to another hydraulic circuit without any interruption. For controlling the actuating assembly, each hydraulic circuit comprises a servo valve which is operated as a function of a desired-actual value comparison of the steering angle by a control and automatic control device, which is connected with an actual steering angle value generator operated by the steered vehicle wheels and a desired steering angle value generator controlled by way of the steering handle operated on the driver side.

Hydraulic power steering system for motor vehicles

In a method of determining the traction of motor vehicle wheels on wet pavements, a surge force generated by a water film on the pavement in front of at least one of the vehicle wheels is measured and from the measured surge force value and the instantaneous vehicle speed a critical speed at which the vehicle wheel will aqua-plane is determined and this critical speed is displayed to the driver or it is used to control a vehicle drive unit to keep the vehicle speed below the critical speed.

Method of determining the traction of motor vehicle wheels

A method of controlling ignition of an internal combustion engine as a function of engine RPM includes the steps of revolving a magnet wheel and inducing with the revolving magnet wheel in an induction coil an initial voltage. At least one delay element is provided and the delay element is switched on and off upon engine RPM. A transformed voltage is deduced from the initial voltage via the at least one delay element and the ignition is tripped when the transformed voltage surpasses a preset threshold. The device for performing the method has a magnet wheel rotating with the crankshaft of the engine and an induction coil coordinated therewith wherein an initial voltage is induced in the induction coil by the magnet wheel. A plurality of switchable RC members connected to the induction coil are provided. The switchable RC members have a first capacitor and the RC members are switched on and off depending on engine RPM. A transformed voltage is deduced from the initial voltage via the RC members and detectable at the first capacitor. A switching device, connected to the first capacitor such that the transformed voltage at the first capacitor is supplied to the switching device is provided for comparing the transformed voltage with the preset threshold and for tripping the ignition when the preset threshold is surpassed.

Method and device for controlling ignition of an internal combustion

A magnetic ignition system for an internal combustion engine has a magnet wheel revolving with the crankshaft of the engine. At least one permanent magnet rotates with the magnet wheel. A stationary armature with a coil is provided. The permanent magnet induces a voltage in the coil, and the voltage is supplied to an energy storage. The magnet wheel has a magnet support made of a magnetically conducting material. A section of the magnet support that is in magnetic shunt is magnetically saturated.

Magnetic ignition system

Growing community of inventors

Grafenberg, Germany

Jurgen Trost