Robert Boschgmbh

Ruediger Block

Klaus Walter

Rasmus Rettig

Christelle Andriot

Helmut Schneider

Werner Hess

Christof Ott

Ianislav Krastev

Steffen Strauss

Nils Steinbach

Uwe Kulow

A device is described for controlling a hydraulic accumulator of a hydraulic system, for example a vehicle transmission, having a valve device which may connect and disconnect an accumulator-side port of the device to and from a system-side port, the valve device including at least one first check valve which is situated hydraulically between the accumulator-side port and the system-side port, and which is blocking in the direction of the system-side port, the valve device also including an electrically actuated control valve which is situated between a control port of the first check valve and the accumulator-side port in such a way that the control valve may hydraulically unblock the first check valve, using the pressure prevailing at the accumulator-side port.

Device for controlling a hydraulic accumulator of a hydraulic system

A method for detecting the motion of an element relative to a sensor apparatus is proposed, in which a detection of the direction of motion is performed. As a function of the direction of motion, a measurement signal is increased or decreased at predetermined measurement intervals, and only if a predetermined threshold value is exceeded is a direction-of-motion signal generated. Preferably, by means of a counting logic circuit (), a counter is increased by a binary amount In one direction () and the counter () is decreased by a binary amount in the respective other direction (). Upon a detection of measurement signals which as a result of being increased or decreased in a measurement interval do not lead to exceeding of the predetermined amount of the threshold value, vibration of the element is assumed.

Method and assembly for detecting the motion of an element

The invention proposes a method for detecting the motion of an element relative to a sensor device, in which signals (to) are evaluated as a function of a pulse generator () that is moved past the sensor (). The signals () of two sensor elements () disposed next to each other in the movement direction are detected, wherein in order to detect vibrations perpendicular to the movement direction, the phase responses of the signals () of the individual sensor elements () and of the differential signals () of the individual sensor elements () are evaluated as to whether all three signals are in phase.

Method and device for the detection of the movement of an element

A method for detecting the motion of an element relative to a sensor arrangement is proposed, wherein switching signals () are evaluated as a function of a pulse transmitter passing in front of the sensor, and a switching hysteresis (H) is adapted in the evaluation as a function of the values of the switching signal (). When the element moves below a predetermined limiting value (f), a relatively great switching hysteresis (Hyst) is set, and when the limiting value (f) is exceeded, a reduced switching hysteresis (H) is set.

Method and assembly for determining rational speed with variable switching hysteresis

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