Volvo Truck Corporation

Ab Volvo

Volvo Car Corporation

Volvo Technology Corporation

Volvo Personvagnar Ab

Powercell Sweden Ab

Volvo Teknisk Utveckling Ab

Ford Global Technolgoies, LLC

Powercell Sveden Ab

Staffan Lundgren

Arne Andersson

Edward Jobson

Bengt Johansson

Lennart Andersson

Nhut Lam

Bincheng Jiang

Lars Sandberg

David Carlson

Per Salomonsson

Ove Hjortsberg

Staffan Johansson

Anders Unosson

Lars Gertmar

Mikael Larsson

Claes Kuylenstierna

Erland Max

Ingemar Denbratt

Lars Pettersson

Ove Backlund

Heije Westberg

Bård Lindström

Ulf Arlig

Cecilia Dahlin

Håkan Sandström

Joop Somhurst

Anders Höglund

Göran Wirmark

Maria Hansson

Bjorn Dexell

Jakob Heydorn Lagerlöf

Jacob Claesson

Anders Vestin

Ulf &Auml;rlig

Gudmund Smedler

Arne Anderson

There is provided a truck, comprising a cab and a plurality of storage tanks secured behind the rear of the cab, wherein the storage tanks are configured to contain hydrogen gas. An energy conversion system is configured to receive hydrogen gas from the storage tanks and to convert the chemical energy of the hydrogen into mechanical or electric energy. A cooling arrangement is configured to cool the energy conversion system. A wall is provided behind the cab and laterally of the storage tanks, the wall having its main extension in a vertical plane, wherein said wall houses at least a part of said cooling arrangement.

Truck with rear walls for hydrogen storage

A combined cooling and water braking system for a vehicle comprises a first water recirculation loop having a first heat exchanger configured to cool water flowing in the first water recirculation loop, the first water recirculation loop comprising a water conduit for transporting heat away from a propulsion device configured to generate a propulsion power for the vehicle. A second water recirculation loop having a second heat exchanger is configured to cool water flowing in the second water recirculation loop. A retarder is configured to be coupled to a pair of wheels of the vehicle. The second water recirculation loop may be selectively used for cooling the propulsion device and for providing water to the retarder for water braking. There is also provided a method for cooling a propulsion device of a vehicle and water braking a pair of wheels of a vehicle.

Combined cooling and water braking system for a vehicle, and a method for cooling a propulsion device of a vehicle and water braking a pair of wheels of a vehicle

The invention relates to a method of controlling operation of an ICE arrangement (), comprising acquiring () a first signal indicative of a required torque; acquiring () a second signal indicative of a temperature (T) of an EATS (); and when the second signal indicates that the temperature (T) of the EATS () is lower than a predefined first threshold temperature (T): determining () an amount of second fuel () needed to deliver the required torque; supplying the amount of second fuel (); controlling () an inlet valve () to allow flow of a second fuel-air mix into the cylinder (); injecting first fuel () into the cylinder () when the second fuel-air mix is compressed by the piston (), resulting in flame propagation ignition of the second fuel-air mix; and controlling () and outlet valve () to allow flow of exhaust from the cylinder () during an exhaust stroke (ES) of the piston ().

Internal combustion engine arrangement and method of controlling operation thereof

The invention provides a method for controlling an internal combustion engine () for controlling an internal combustion engine () comprising at least one first cylinder () and at least one second cylinder () with respective reciprocating pistons, an intake guide () arranged to guide air from a fresh air intake arrangement () to the first and second cylinders (), a fuel system () arranged to inject fuel into the first and second cylinders (), a first exhaust guide () and a second exhaust guide () arranged to guide gases from the first and second cylinders (), respectively, towards an exhaust after treatment system (), the method comprising&#x2014;receiving (S) in the first cylinder (), from the intake guide (), air from the fresh air intake arrangement () or gases including air from the fresh air intake arrangement (), &#x2014;expelling from the first cylinder (), to the first exhaust guide (), gases in the form of the air received in the first cylinder, or in the form of exhaust gases from combustions in the first cylinder, including a portion of the air received in the first cylinder (), &#x2014;controlling (S) a first exhaust valve () located in the first exhaust guide () so as to reduce or inhibit the transport of the gases from the first cylinder () to the exhaust after treatment system () and simultaneously recirculating the gases from the first exhaust guide () to the intake guide () by means of an exhaust gas recirculating (EGR) passage (), &#x2014;receiving in the second cylinder (), from the intake guide (), at least a portion of the gases recirculated from the first exhaust guide () to the intake guide (), &#x2014;injecting (S) fuel into the second cylinder () so as to provide repetitive combustions with air in the received gases, &#x2014;expelling from the second cylinder (), to the second exhaust guide (), the exhaust gases produced by the combustions in the second cylinder (), and&#x2014;controlling a second exhaust valve () located in the second exhaust guide () so as to guide the exhaust gases expelled from the second cylinder through the second exhaust guide () towards the exhaust after treatment system ().

Method for controlling an internal combustion engine

The invention provides an internal combustion engine system () comprising&#x2014;at least one combustor (), and&#x2014;a first expander () arranged to receive exhaust gases from at least one of the at least one combustor (), and to expand and extract energy from the exhaust gases &#x2014;characterized in that the system comprises a second expander () arranged to receive exhaust gases from the first expander (), and to expand and extract energy from the exhaust gases.

Internal combustion engine system and a method for an internal combustion engine system

A method is provided for operating an internal combustion piston engine, including

Method for operating an internal combustion piston engine

A method for controlling an internal combustion engine system, the engine system including a combustor arranged to receive air and fuel, and combust the received air and fuel, an expander arranged to expand exhaust gases from the combustion in the combustor and to extract energy from the expanded exhaust gases, and a communication valve arranged to control a communication between the combustor and the expander, including determining during operation of the engine system whether there is a pressure difference across said communication valve.

Method for controlling an internal combustion engine system

The invention relates to a system () for operating a valve of an internal combustion engine (), said system comprising a primary fluid circuit () configured to define a fluid passageway for circulating a compressible fluid medium there through being operatively connectable to an actuator () of an actuated flow control valve () of said internal combustion engine, thereby capable of delivering a valve opening force. The system further comprises: a secondary fluid circuit () configured to define a secondary fluid passageway for transporting a compressed fluid medium, and having an inlet passage () connectable to a cylinder for receiving the compressed fluid medium; and an auxiliary pressurized system () comprising a chamber () and at least one reciprocating member () operable in said chamber (), said auxiliary pressurized system () being arranged in fluid communication with said secondary fluid circuit () and in fluid communication with said primary fluid circuit such that said at least one reciprocating member () pressurizes said primary fluid circuit when said compressed fluid medium of the secondary fluid circuit acts on said at least one reciprocating member ().

Pneumatic system for an internal combustion engine

The invention relates to an internal combustion engine comprising a combustion cylinder housing a combustion piston, a compressor cylinder housing a compressor piston, an expander cylinder housing an expander piston, and a crankshaft connected to the combustion piston and the expander piston by a respective connecting rod. The internal combustion engine further comprises a connecting element rigidly connecting the compressor piston and the expander piston such that the compressor piston and the expander piston move in unison.

Internal combustion engine

The present invention relates to an internal combustion engine arrangement for a vehicle, said internal combustion engine arrangement comprising a combustion cylinder housing a reciprocating combustion piston, and an expansion cylinder housing a reciprocating expansion piston, said expansion cylinder being arranged in downstream fluid communication with the combustion cylinder for receiving combustion gases exhausted from the combustion cylinder, wherein the internal combustion engine arrangement further comprises a pressure tank arranged in fluid communication with the expansion cylinder, wherein the internal combustion engine arrangement is further arranged to be operated in a first operating mode in which compressed gas generated in the expansion cylinder is delivered to the pressure tank, and a second operating mode in which compressed gas contained in the pressure tank is delivered from the pressure tank to the expansion cylinder.

Internal combustion engine arrangement

The invention relates to a method () for estimating a cylinder pressure (CP) in an internal combustion engine arrangement (), the method comprising the steps of: initiating () an opening of a valve by an actuator during an expansion stroke; monitoring () the valve to determine a point in time (Tp) when the valve opens; determining () a differential pressure (DP) between the combustion cylinder and a position in a fluid medium exhaust passage () downstream said valve at the point in time (Tp); receiving () data being indicative of a pressure (EP) in the fluid medium passage at the point in time (Tp); and determining () the cylinder pressure (CP) at the point in time (Tp) based on the determined differential pressure (DP) and the data indicative of the pressure in said fluid medium passage.

Method for estimating cylinder pressure

An internal combustion engine system includes at least one combustor, and a first expander arranged to receive exhaust gases from at least one of the at least one combustor, and to expand and extract energy from the exhaust gases, wherein the system includes a second expander arranged to receive exhaust gases from the first expander, and to expand and extract energy from the exhaust gases.

Internal combustion engine system and a method for an internal combustion system

An internal combustion engine system includes a compressor arranged to compress air, at least one combustor, at least one of the at least one combustor being arranged to receive the compressed air, and an exhaust treatment device arranged to process exhaust gases produced by at least one of the at least one combustor, a heat exchanger arranged to receive the compressed air from the compressor before it reaches the at least one of the at least one combustor, and wherein the heat exchanger is arranged to transfer heat from the compressed air to the exhaust treatment device.

Internal combustion engine system and an exhaust treatment unit for such a system

A fuel system for an internal combustion engine is provided including a first fuel container for a first fuel, a second fuel container for a second fuel, a pump, and a first fuel injector, the fuel system being arranged to provide a communication between the first fuel container and the pump and between the pump and the first fuel injector, and a reservoir with a separation device adapted to divide the reservoir into a first volume and a second volume, whereby the separation device may be moved or flexed by a pressure difference in the first and second volumes so as to change the sizes of the first and second volumes, wherein the fuel system is arranged to provide a communication between the pump and the first volume, and to provide a communication between the second fuel container and the second volume and between the second volume and a second fuel injector.

Fuel system for an internal combustion engine

An internal combustion engine system includes at least one combustor, a compressor arranged to compress air, an air guide arranged to guide compressed air from the compressor to at least one of the at least one combustor, an expander arranged to expand exhaust gases from at least one of the at least one combustor and to extract energy from the expanded exhaust gases, and an exhaust guide arranged to guide exhaust gases from at least one of the at least one combustor to the expander, wherein the exhaust guide is at least partly integrated with the air guide.

Internal combustion engine system

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Hindås, Sweden

Staffan Lundgren