Robert Boschgmbh

Eth Zurich

Carrosserie Hess Ag

Bayerische Motoren Werke Aktiengesellschaft

Fpt Motorenforschung Ag

Umicore Ag & Co Kg

Université D'orleans

Christopher Harald Onder

Lino Guzzella

Martin Rauscher

Peter Spring

Alex Naef

Hans-Joerg Gisler

Philipp Valentin Elbert

Christian Dönitz

Martin Widmer

Wolfgang Fischer

Andreas Roth

Martin Votsmeier

Andreas Heinrich Ritter

Christoph Voser

Yann Chamaillard

David Gaenzle

Juergen Gieshoff

Johannes Ritzmann

Tobias Ott

Mauro Salazar

Norbert Zsiga

Oscar Chinellato

Georg Lins

Raffael Hedinger

Alain Charlet

Pascal Higelin

Julian Vasile

Christian Doenitz

Roman Moeller

Hans-Jörg Gisler

Christian Donitz

Christian DÖNITZ

Andreas Christon

In a method for predicting future driving conditions for a vehicle (), sensor data () are gathered while the vehicle () is traveling on a route. A position of the vehicle () is also determined. The gathered data are associated with the determined vehicle position. A map () is created depending on the associated data. When the route is traveled again, the map is updated in real time depending on associated data from the repeated traveling. Finally, a prediction of future driving conditions is obtained based on the determined vehicle position and the map ().

Method for predicting future driving conditions for a vehicle

A method for controlling a vehicle on a mission, the vehicle comprising a first and a second power source for driving the vehicle itself, wherein the first power source comprises an engine configured to generate power from fuel and an after treatment system coupled to the combustion engine, the method comprising the steps of solving a convex first optimal control problem based on a mathematical model of the vehicle, the first optimal control problem involving state variables for the after treatment system, a set of constraints, and a cost function having control variables that include a discrete variable and a continuous variable; the solving including an initial determination of the discrete variable and an iterative execution of minimizing the cost function after replacement of the discrete variable with respect to the continuous variable, updating the discrete variable, and verifying the satisfaction of a convergence criterion.

Method and a system for controlling a vehicle on a mission

Feedback control of combustion in a gas diesel dual-fuel engine (), based on the measured cylinder pressure, has been invented. The center of combustion and pressure rise rate is controlled by manipulating the start of diesel injection and duration of diesel injection. Measurements of transient engine operation show, that the proposed controller is able to control the center of combustion and the maximum pressure rise rate. The influence of changing intake manifold pressure, changing exhaust gas recirculation rate and changing air-fuel ratio can be compensated by the controller (). Steady state measurements show that the gas diesel dual fuel engine reaches efficiencies around 40% with stoichiometric air-fuel ratio and diesel ratios below 5%. The results have been obtained on a slightly modified production type common-rail diesel engine with four cylinders and a displacement volume of 2 liters.

Dual fuel combustion engine with feedback control of combustion and corresponding method

A method for determining a signal offset between a crankshaft angle signal and a combustion chamber pressure signal includes: measuring the combustion chamber pressure signal; shifting an alignment of the measured combustion chamber pressure signal with respect to the crankshaft angle signal by a plurality of respective offset angles to generate a plurality of offset combustion chamber pressure signals; reconstructing the offset combustion chamber pressure signals using a plurality of predetermined inherent pressure curves to generate reconstructed combustion chamber pressure signals; determining reconstruction errors of the reconstructed combustion chamber pressure signals as a function of differences between the offset combustion chamber pressure signals and the reconstructed combustion chamber pressure signals; and determining the signal offset between the crankshaft angle signal and the combustion chamber pressure signal as a one of the plurality of offset angles producing the reconstruction error having the lowest value.

Method and device for determining a signal offset between a crankshaft angle signal and a combustion chamber pressure signal in an internal combustion engine

A method for operating an internal-combustion engine includes increasing a torque demand, controlling a throttle valve, opening an air injection valve and continuously measuring first and second gas pressures with an electronic control unit. The method also includes closing the throttle valve, measuring a first gas mass flow, retarding an ignition angle, and closing the air injection valve. In the method the throttle valve is opened with the control unit when the first gas pressure pequals the second gas pressure p. The method also includes continuously controlling the fuel system with the electronic control unit to have a stoichiometric fuel/air ratio of the internal combustion engine being constantly combusting in the internal combustion engine.

Method for operating a spark ignition internal combustion engine with an exhaust gas turbocharger

The present invention relates to a turbocharged reciprocating piston engine, and to a method for operating said engine. The combustion chamber includes at least one inlet valve (), one outlet valve () and at least one additional charging valve (), for the additional feed of compressed air to bridge the turbo lag, that are each operatively connected to the crankshaft via a camshaft and the operative connection of the charging valves to the crankshaft can be deactivated, with the result that the at least one charging valve () remains closed. An approximately stoichiometric combustion mixture is achieved by a turbocharger () and a throttle valve (). By displacement of the opening instant of the charging valves (), air can be pumped from the cylindrical combustion chambers into the compressed air tank (). An additional compressor () can likewise deliver air into the compressed air tank ().

Turbocharged reciprocating piston engine having a connected pressure tank for bridging turbo lag, and method for operating said engine

The present disclosure relates to an pneumatic hybrid internal combustion engine with at least one combustion chamber composed of a cylinder in which a piston is arranged mechanically interconnected to a crank shaft via a piston rod. An inlet valve and an exhaust valve are both mechanically interconnected via a valve gear to the crank shaft. The engine further includes at least one charge valve which is actuated by a charge valve actuator in a fully variable manner such that the engine can be operated in a four stroke hybrid mode.

Pneumatic hybrid internal combustion engine on the basis of fixed camshafts

In an internal combustion engine, fresh air is compressed by a pressure-wave supercharger. At least one operating parameter of the pressure-wave supercharger is controlled or regulated as a function of at least one actual operating variable of the internal combustion engine.

Method for operating an engine with a pressure-wave supercharger

Method of operating an engine with a pressure-wave supercharger

Growing community of inventors

Weisslingen, Switzerland

Christopher Harald Onder