Avl List Gmbh

Roche Diabetes Care, Inc.

F. Hoffmann-la Roche Ag

Kraussmaffei Technologies Gmbh

Luigi Del Re

Helmut Kokal

Martin Schmidt

Michael Paulweber

Engelbert Grünbacher

Peter Langthaler

Gerald Steinmaurer

Dirk Denger

Josef Mayrhofer

Kurt Pichler

Thomas E Passenbrunner

Mario Sassano

Hannes Trogmann

Pavlo Tkachenko

Jinwei Zhou

Thomas Ernst Passenbrunner

The invention relates to a method and to a device for analyzing a sensor data stream, which characterizes a vehicle environment, with respect to a presence of traffic scenarios. The invention further relates to a method for guiding a vehicle. A similarity measure, which indicates the degree of correspondence between a section of the sensor data stream and at least one template stored in a database, is determined by mapping the section of the sensor data stream to the at least one template, preferably by means of dynamic time normalization. The template thereby characterizes a known traffic scenario. The known traffic scenario is assigned to the section of the sensor data stream, if the similarity measure satisfies a predetermined similarity criterion.

Method and device for analyzing a sensor data stream and method for guiding a vehicle

An electric motor () of a drive train () of a hybrid vehicle is controlled by determining the shaft torque (T) of a current work cycle (n) of an included internal combustion engine () and feeding the shaft torque (T) to a compensation controller (K) which has stored the shaft torque (T(n&#x2212;1)) of a preceding work cycle (n&#x2212;1) of the internal combustion engine, and calculating a compensated shaft torque (T) from the shaft torque (T(n)) of the current work cycle (n), the shaft torque (T(n&#x2212;1)) of a previous work cycle (n&#x2212;1), and the shaft torque of a previous work cycle (n&#x2212;1) shifted by a system delay, which compensated shaft torque (T) is linked to a target torque (T) predefined by a higher-level control unit () to determine the controlling torque (T) for the electric motor.

Method for compensating rotational irregularities of an internal combustion engine of a drive train of a hybrid vehicle

A hydrodynamic torque generator for test benches includes at least one inlet valve and at least one outlet valve, and a control device for valve positioning, the control device including an open-loop feed-forward controller and a closed-loop feedback controller.

Hydrodynamic torque generator for test benches and control method therefor

When arrangements with a repeating working cycle such as, for example, in the case of engine test benches, are being controlled, resonances which have to be damped by the control system are often excited by the test specimen (for example an internal combustion engine) in the working range of the arrangement. The invention proposes for this purpose a control concept in which a modified actual value ris determined from a current actual value rof the control system and from a predicted imminent system-delay-free actual value on the basis of the actual value of a previous working cycle, and said modified actual value ris fed to the control system.

Method and control arrangement for controlling a controlled system with a repeating working cycle

A test rig for dynamic test assignments on internal combustion engines is equipped with a preferably electrical drive and/or loading device which is coupled to a control device for adapting and controlling setpoint values for a speed and a torque characteristic. For a test rig of this kind, in order to enable the setpoint values determined by a speed and a torque characteristic to be optimally adapted and controlled for the respective test assignment and so that they can be reproduced on the test rig in the best possible manner, the control device can be adapted in terms of adjusting the weighting of speed control to torque control.

Test rig for dynamic test assignments on internal combustion engines, and method for operating a test rig of this kind

The course of torque transmitted though a driving shaft () between torque generating device () to be tested and a driving or loading mechanism () is determined during an identification phase in the completely constructed test bench with the use of a rotating driving or loading mechanism () at pseudo-stochastic rotational speeds. Determined are thereby parameters describing in a real and current manner the dynamic behavior of the driving shaft () whereby the parameters are used as an influence in further testing.

Method to test a dynamic torque-generating device and a device to determine the dynamic behavior of a driving shaft

In a test bench design consisting at least of an internal combustion engine () having its own sensor technology, actuator technology and control devices, a dynamometric brake (), and a test bench computer () controlling the internal combustion engine () and the dynamometric brake (), whereby the computer () calculates the control variables for the internal combustion engine () and the dynamometric brake () based on set point defaults, the object to operate the internal combustion engine () with the assistance of the dynamometric brake () in the same way as the engine would be operated by the user in a selected vehicle and with the driving profile to be set by the user is achieved by conducting a predefined measurement prior to the actual measurement, which cannot be performed precisely by the user himself, and based on the measurement, parameters of a calculation specification () of set point defaults of the control variables are to be determined under consideration of the characteristics of the test bench and then set on the test bench computer () without changing the parameter setting of the test bench computer () or of the control device of the internal combustion engine.

Growing community of inventors

Linz, Austria

Luigi Del Re