Ford Global Technolgoies, LLC

Leonhard Bartsch

Joerg Kemmerling

Christian Winge Vigild

Daniel Roettger

Frank Wunderlich

Werner Willems

Guohui Chen

Helmut Ruhland

Yasser Mohamed Sayed Yacoub

Frederik De Smet

Jan Harmsen

David Van Bebber

Matthew Allen Schneider

Monika Angst

Frank Linzen

Ingo Lenz

Rob Stalman

Claus Maerschank

Juergen Stief

Ralf Hecke

Dietmar Hermann

Alain Chevalier

Heinz-Gerhard Wunderlich

Hans Günter Quix

Simon Petrovic

Systems and methods are provided for an engine wherein one group of cylinders is active and a second group of cylinders is switchable, such that under low loads the second group of cylinders is deactivated, and under high loads the second group of cylinders is activated. Following deactivation of the second group of cylinders a throttling element in an intake line for the second group of cylinders is gradually closed. The closing of the throttling element may reduce pumping losses and thus increase engine efficiency.

Internal combustion engine featuring partial shutdown and method for operating an internal combustion engine of this kind

Methods and systems are provided for a surface structure for a piston. In one example, the surface structure is located on at least a portion of the piston.

Direct-injection internal combustion engine with piston, and method for producing a piston of an internal combustion engine of said type

A method includes deactivating one or more cylinders of the second cylinder group responsive to engine operation in a first engine speed-load region, and adjusting exhaust valve timing of one or more cylinders of the first cylinder group responsive to the deactivating. The method further includes adjusting exhaust valve timing of the one or more cylinders of the first cylinder group responsive to engine operation in a second engine speed-load region, and deactivating the one or more cylinders of the second cylinder group responsive to the adjusting.

Exhaust-gas-turbocharged internal combustion engine with partial deactivation and method for operating an internal combustion engine

Methods and systems are provided for detecting ammonia slip from a catalytic converter. In one example, a method may include recirculating exhaust gas containing ammonia and measuring only a NOconcentration of the recirculated exhaust gas following its combustion.

Ammonia slip detection

Methods and systems are provided for an injector arrangement for an internal combustion engine. In one example, an injector arrangement may include an actuator positioned between a fuel injector and a cylinder head, with the actuator configured to adjust a position of the fuel injector relative to the cylinder head in order to adjust a protrusion amount of a fuel nozzle tip within a combustion chamber.

Injector arrangement for an internal combustion engine

Embodiments for an internal combustion engine are provided. In one example, and internal combustion engine comprises at least two cylinders each including an injection nozzle and a fuel supply system for supplying the cylinders with fuel. The fuel supply system includes a supply line connecting each injection nozzle to a first fuel reservoir storing fuel at a first pressure, the first fuel reservoir filled by a pump provided upstream, a second fuel reservoir storing fuel at a second pressure less than the first pressure and connected to the first fuel reservoir via a connecting line for filling with fuel, and a bypass line connecting the second fuel reservoir to each injection nozzle. The bypass line opens into the fuel supply system downstream of the first fuel reservoir, thereby forming a connection point, and a shutoff element is arranged in the bypass line, opening or shutting off the bypass line.

Internal combustion engine having a fuel supply system for stop-and-go operation

A method of operating a vehicle powertrain, includes: sensing a vehicle velocity; selecting at least two of a plurality of control strategies; activating the at least two control strategies, said two control strategies including: (i) operating the vehicle in a stationary start-stop mode when the vehicle speed is below a first threshold; and (ii) operating the vehicle in a rolling stationary start-stop mode when the vehicle speed is above a second threshold.

Method for operating a vehicle powertrain

A regeneration method () for regenerating an adsorber (), connected downstream of an internal combustion engine (), of a motor vehicle () with a hybrid drive train is described. The internal combustion engine () is operated in a phase of rich combustion for regeneration of the adsorber (). According to the description, an engine load () and/or an engine rotational speed () of the internal combustion engine () for the rich combustion is influenced by means of an electric machine () which can be coupled mechanically to the internal combustion engine ().

Regeneration method and motor vehicle

The present application relates to a fuel injection system of an internal combustion engine having an automatic stop-start system, the fuel injection system comprising a high pressure fuel pump, which via a fuel pump line delivers fuel towards a common fuel rail, to which a fuel return line is connected. It is proposed that the fuel return line comprise a control element system, which firstly discharges a fuel pressure to a fuel tank, when a first predefined pressure limit is reached in the fuel return line, and which secondly prevents a further flow of fuel from the return line into the fuel tank, but allows a flow of fuel from the fuel tank into the fuel return line, so that the return line is designed as a fuel pressure accumulator.

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Aachen, Germany

Leonhard Bartsch