Isermann
Jan Isermann, Bremen DE
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20150027574 | VALVE FOR FIELD-SENSITIVE LIQUIDS, AND HYDRAULIC SYSTEM HAVING A VALVE OF THIS TYPE - Disclosed is a valve for field-sensitive liquids having a valve channel and at least one coupling element for coupling a control field into the valve channel. The valve has a control body which can be moved counter to the force of a restoring element in order to change a flow cross section and can be moved by way of the action of the field-sensitive liquid. A hydraulic system comprising the valve is also disclosed. | 01-29-2015 |
Patrick Isermann, Berlin DE
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20080258446 | Method for the production of a gas bag packet for an airbag module - A process for producing an airbag packet for an airbag module is provided. The airbag is folded up in a folding apparatus to form an airbag packet. Then, the airbag packet is enclosed in a gastight manner by a flexible envelope, wherein the airbag packet is at least partially enclosed by the envelope while it is still in the folding apparatus. | 10-23-2008 |
20110079993 | AIRBAG MODULE FOR A MOTOR VEHICLE - The invention relates to an airbag module for a motor vehicle, comprising a gas sack, that can be inflated in order to protect a person by feeding gas into the gas sack, an openable reservoir for storing a coolant, wherein the reservoir comprises a first and a second portion, the second portion connected to the first portion, at least one outflow opening of the reservoir formed in the second portion, through which the coolant, for cooling the gas fed into the gas sack, can leave the reservoir, and a closure element for closing the outflow opening. According to the invention it is provided that the closure element divides the reservoir into the two portions, and that the coolant is arranged in the first portion, wherein the closure element seals the first portion of the reservoir with respect to the second portion of the reservoir. Further, the invention relates to a method for producing an airbag module. | 04-07-2011 |
Rolf Isermann, Seeheim-Jugenheim DE
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20090070050 | Method for fault detection and diagnosis of a rotary machine - Modem rotary machine production requires built-in fault detection and diagnoses. The occurrence of faults, e.g. increased friction or loose bonds has to be detected as early as possible. Theses faults generate a nonlinear behavior. Therefore, a method for fault detection and diagnosis of a rotary machine is presented. Based on a rotor system model for the faulty and un-faulty case, subspace-based identification methods are used to compute singular values that are used as features for fault detection. The method is tested on an industrial rotor balancing machine. | 03-12-2009 |
20110067493 | Method for the automatic detection and identification of errors in a balancing machine - A method is disclosed for the automatic detection and identification of errors in a balancing machine during operation, in which a rotor provided with an unbalance is rotatably mounted in a vibratory bearing in the balancing machine and is set in rotation by a drive, the rotational frequency of the rotating rotor and the vibrations stimulated by the rotor are measured and measurement signals which comprise the measured values of the rotational frequency and the vibrations are generated and delivered to an evaluation computer. The evaluation calculation is based on mathematical models of the dynamic properties of the balancing machine which describe stimulations of the machine structure due to the unbalance, in particular in the balancing planes, and/or due to the rotor geometry and/or due to the bearing and/or possible damage to the bearing. Features such as vibration characteristics and/or process parameters are calculated by a signal-model-based method from the measurement signals, and discrepancies are established by comparing the calculated features with predetermined normal features of an error-free process. | 03-24-2011 |
20110313665 | Method for Automatically Detecting a Driving Maneuver of a Motor Vehicle and a Driver Assistance System Comprising Said Method - The invention relates to a method for automatically detecting a driving maneuver of a motor vehicle (A), in particular an overtaking maneuver or an evasive maneuver, in which | 12-22-2011 |
Rolf Isermann, Seeheim DE
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20080208408 | METHOD AND DEVICE FOR PERFORMING A COLLISION AVOIDANCE MANEUVER - Disclosed is a method of executing a collision avoidance maneuver ahead of an object in the surroundings, with which the vehicle is on a collision course. To allow determining the avoiding path in a simplest possible fashion and, in particular, a simplest possible parameterization of the path, the avoiding path is given by a sigmoid (ƒ | 08-28-2008 |
20090076702 | Method and Apparatus for Predicting a Movement Trajectory - In order to be able to undertake a reliable prediction of a movement trajectory of an object moving in road traffic even for relatively long prediction periods, a method is proposed in which there is firstly determined ( | 03-19-2009 |
20090222166 | Method and Device for Steering a Motor Vehicle - A method for steering a motor vehicle in a collision avoidance maneuver ahead of an object in the front or lateral surroundings of the motor vehicle. It is arranged that a linear control method is employed, in which case one controller output signal (δ | 09-03-2009 |
Rolf Isermann, Darmstadt DE
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20120191427 | SYSTEM FOR DIAGNOSING ERROR CONDITIONS OF A GAS FLOW CONTROL SYSTEM FOR TURBOCHARGED ENGINES - An evaluation unit is provided that includes, but is not limited to a microprocessor for receiving measurement signals from a gas flow control system of a combustion engine and for outputting a state signal indicating a state of the gas flow control system. A first set of measurement signals includes, but is not limited to a signal of a pressure upstream of a turbocharger and a signal of a pressure downstream of a turbocharger. A second set of measurement signal includes, but is not limited to a motor revolution speed. The microprocessor calculates first predicted values using a turbocharger model based on the first set of measurement signals and calculate a second predicted values using a nominal model based on the second set of measurement signals. The microprocessor further generates the state signal with a comparison of the first predicted values with the second predicted values. | 07-26-2012 |
20120197550 | SYSTEM FOR DIAGNOSING ERROR CONDITIONS OF A GAS FLOW CONTROL SYSTEM FOR DIESEL ENGINES - A combustion engine evaluation unit is provided that includes, but is not limited to a microcontroller receiving measurement signals from a gas flow control system and outputting a state signal of the gas flow control system. The microcontroller includes, but is not limited to input ports for receiving as first set of measurement signals. Furthermore, the microcontroller includes, but not limited to input ports for receiving as a second set of measurement signals. The microcontroller is configured to calculate a first set of predicted values with a gas flow model based on the first set of measurement signals and calculate a second set of predicted values with a nominal model based on the second set of measurement signals. The microcontroller is also configured to generate the state signal based on a comparison of the first set of predicted values with the second set of predicted values. | 08-02-2012 |
20130042609 | UNIT FOR ESTIMATING THE ROTATIONAL SPEED OF A TURBOCHARGER AND SYSTEM AND METHOD FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE WITH A TURBOCHARGER - A unit for estimating a rotational speed of a turbocharger is provided. The unit includes a microprocessor comprising input ports configured for receiving measurement signals from an exhaust gas flow control system of an internal combustion engine and an output port for outputting a signal indicative of the rotational speed of the turbocharger. The input ports are adapted to receive a first set of measurement signals and a second set of measurement signals. A microprocessor is configured to calculate an estimated rotational speed of the turbocharger using a turbocharger model, based on the first set of measurement signals and the second set of measurement signals. The second set of measurement signals include signals indicative of a pressure difference across a turbine of the turbocharger. | 02-21-2013 |