Abstract: The present invention relates to a process for purifying low molecular weight hydridosilane solutions, in which a solution to be purified comprising a) at least one low molecular weight hydridosilane, b) at least one solvent and c) at least one impurity selected from the group of the compounds having at least 20 silicon atoms and/or the group of the homogeneous catalyst systems is subjected to a crossflow membrane process with at least one membrane separation step using a permeation membrane.

Abstract: The invention relates to a plant for carrying out chemical reactions, having a reactor (1), the reaction space of which contains hydrogen peroxide (H2O2) and titanium silicalite (TS-1). The object of the invention is to improve such a plant such that continuous separation and recycling of the active catalyst to the reaction space is possible with a long filter service life. This is achieved in that the reaction space contains a solid silicon source, in that the plant comprises a water takeoff line (3) which is set up for drawing off water in addition to components which are dissolved and/or dispersed therein from the reaction space, in that the water takeoff line (3) leads to a filter (4) which separates off the components which are dissolved and/or dispersed in the water, and in that the plant has a return line (5) which is set up for recirculating to the reaction space components which are separated off by means of the filter (4).

Abstract: A method of fractionating a dispersion of oxidic nanoparticles wherein at least one step of the method is a membrane crossflow filtration step, the flow of the dispersion over the membrane being brought about by means of driven rotating parts; and dispersions of oxidic nanoparticles that are obtainable by the method.

Abstract: The invention relates to a plant for carrying out chemical reactions, having a reactor (1), the reaction space of which contains hydrogen peroxide (H2O2) and titanium silicalite (TS-1). The object of the invention is to improve such a plant such that continuous separation and recycling of the active catalyst to the reaction space is possible with a long filter service life. This is achieved in that the reaction space contains a solid silicon source, in that the plant comprises a water takeoff line (3) which is set up for drawing off water in addition to components which are dissolved and/or dispersed therein from the reaction space, in that the water takeoff line (3) leads to a filter (4) which separates off the components which are dissolved and/or dispersed in the water, and in that the plant has a return line (5) which is set up for recirculating to the reaction space components which are separated off by means of the filter (4).

Abstract: A method of fractionating a dispersion of oxidic nanoparticles wherein at least one step of the method is a membrane crossflow filtration step, the flow of the dispersion over the membrane being brought about by means of driven rotating parts; and dispersions of oxidic nanoparticles that are obtainable by the method.

Abstract: Process for separating a metal complex catalyst from a reaction mixture obtained from a telomerization reaction, wherein the metal complex catalyst is separated off at least one membrane which is more permeable to the telomerization product than to the metal complex catalyst.

Abstract: A steering booster process is provided for a motor vehicle with a steering arrangement for the input of a set steering variable by a driver, several travel sensors for detecting travel dynamic variables, a steering control system by way of which a steering control variable, which is determined dependent on the output variables of the several travel sensors, is overlapped on the set steering variable, as well as at least one other control system that influences the performance of the motor vehicle, which evaluates data from the steering control system. The additional control system is especially a braking control system for stabilizing the vehicle stability by braking individual vehicle wheels. The additional control system evaluates the set steering variable overlapped by the steering control variable from the steering control system.

Abstract: An overlay steering system for a vehicle includes a mechanical steering apparatus for the transfer of a steering torsional moment at a predetermined transfer ratio to at least one steered wheel, a wheel angle sensor connected to at least one steered wheel for generating a wheel angle signal corresponding to an angle of the at least one steered wheel, a comparison device for comparing the steering angle signal and the wheel angle signal as well as for generating a comparison signal based on the steering angle and the wheel angle, and an electromechanical converter for generating the overlay torsional moment, if the comparison signal indicates the presence of a deviation from the predetermined relation between the steering angle and the wheel angle of the at least one steered wheel, resulting in a reduction of the deviation.

Abstract: A motor vehicle steering system includes a yaw rate controller that continuously detects a yaw rate representing the vehicle yawing motion, forms a control signal as a function thereof, and causes a steering movement that counteracts the undesired yawing motion. The control signal is formed differently in the unbraked driving condition than when the vehicle is braked. In addition, the control signal in the case of a control intervention of a brake control system may be formed differently than when the vehicle is braked without such a control intervention. Preferably, the control signal which is determined from the deviation between a desired yaw rate value and the actual yaw rate value, in the case of a controlled braking operation, is formed by means of at least one other amplification factor (kp) that differs from that which is used in the unbraked driving condition.

Abstract: A steering booster process is provided for a motor vehicle with a steering arrangement for the input of a set steering variable by a driver, several travel sensors for detecting travel dynamic variables, a steering control system by way of which a steering control variable, which is determined dependent on the output variables of the several travel sensors, is overlapped on the set steering variable, as well as at least one other control system that influences the performance of the motor vehicle, which evaluates data from the steering control system. The additional control system is especially a braking control system for stabilizing the vehicle stability by braking individual vehicle wheels. The additional control system evaluates the set steering variable overlapped by the steering control variable from the steering control system.

Abstract: A system for electronic control of an actuator of an automatic control system in a motor vehicle, has a control unit with at least one control function unit for controlling the actuator as a function of at least one operating parameter at a defined adjusting speed. The control unit has an adjusting rate limiting device assigned to at least one control function unit, for limiting the desired adjusting speed for controlling the actuator defined by the control function unit, to a defined limit value.

Abstract: An overlay steering system for a vehicle includes a mechanical steering apparatus for the transfer of a steering torsionali moment at a predetermined transfer ratio to at least one steered wheel, a wheel angle sensor connected to at least one steered wheel for generating a wheel angle signal corresponding to an angle of the at least one steered wheel, a comparison device for comparing the steering angle signal and the wheel angle signal as well as for generating a comparison signal based on the steering angle and the wheel angle, and an electromechanical converter for generating the overlay torsional moment, if the comparison signal indicates the presence of a deviation from the predetermined relation between the steering angle and the wheel angle of the at least one steered wheel, resulting in a reduction of the deviation.

Abstract: A system for electronic control of an actuator of an automatic control system in a motor vehicle, has a control unit with at least one control function unit for controlling the actuator as a function of at least one operating parameter at a defined adjusting speed. The control unit has an adjusting rate limiting device assigned to at least one control function unit, for limiting the desired adjusting speed for controlling the actuator defined by the control function unit, to a defined limit value.

Abstract: A method and system generate multi-dimensional coupling paths for guiding vehicles to a destination path with a path dynamic unit (13), with a feedback control (11) for a closed loop control of at least one closed loop for sending feedback data (16, 17; 105, 106, 107) to the feedback control (11). A conversion module (15) is provided at the output of the path dynamic unit (13) for calculating destination path values (5) which are fed into the feedback control (11) as input values.