Abstract: The invention concerns the source of electrical energy management module (16) of a hybrid or an electric vehicle (10) comprising several containers (11a-11b), each container (11a-11b) including at least one source of electrical energy (14a-14b) connected to the traction system (12) of said vehicle (10), wherein said source of electrical energy management module (16) includes: means of analysis that are configured to obtain the state of charge of each source of electrical energy (14a-14b) of a vehicle (10); means of selecting at least one source of electrical energy (14a-14b) intended for the traction of a vehicle (10), wherein said selection is made so that the electric power is drawn off as a priority from the source of electrical energy (14a-14b) of the container (11a-11b) to be delivered next by said vehicle (10) if the state of charge of this source of electrical energy (14a-14b) is sufficient.
Abstract: A method is provided for controlling electrical components in a vehicle including multiple traction voltage systems, wherein each traction voltage system includes at least one electrical component, and which electrical component has the same function in each traction voltage system, the method involving the steps of monitoring and registering the state of health of each electrical component over time; predicting a predetermined parameter for each electrical component, which parameter is related to a future operating state inhibiting the use of the components; determining a control strategy for each electrical component based on the state of health of the electrical components to balance the parameters towards a common value; and controlling the electrical components based on the determined control strategy.
Abstract: A method includes operating an air boosting apparatus of a two-stroke, opposed piston engine as a function of one or more factors including a first engine speed, a first torque, demand, a first altitude, a first transient rate, and one or more first ambient conditions to provide a first pressure S ratio (PR} of pre-turbine pressure (PTP) versus turbocharger compressor discharge pressure (CDP} and a first air-to-fuel ratio (AFR).
Abstract: A valve arrangement for supplying air to an internal combustion engine includes a first valve and a second valve arranged within the first valve. A valve guide for use in a valve arrangement is also provided.
Abstract: A piston crown is provided for a piston in an internal combustion engine arrangement that includes a cylinder, the piston crown having a piston bowl surface adapted for facing a combustion chamber in the cylinder, wherein the piston bowl surface including a circumferential rim portion, a floor portion connected to and surrounded by the circumferential rim portion, a plurality of circumferentially spaced protrusions in the circumferential rim portion, at least one spray impingement portion, located between two adjacent protrusions. The spray impingement portion includes a reflection surface, being defined by that each possible normal to the reflection surface is directed towards a central axis of the piston, and forming an angle being within a range of a constant angle ±10° with the central axis, wherein the constant angle is at least 50°.
Abstract: A tool for draining and refilling a vehicle tank for cryogenic fuel, wherein the tool when in position for use has a vertical direction and includes a heat exchanger and a cooling tank, the cooling tank having an upper portion and a lower portion as viewed in the vertical direction of the tool and including a fuel outlet having at least one outlet valve, the fuel outlet being connected to a first fuel conduit and second fuel conduit via the at least one outlet valve, wherein the first fuel conduit includes an arrangement for connecting the first fuel conduit to an inlet on the heat exchanger, and wherein the second fuel conduit includes an arrangement for connecting the second fuel conduit to an inlet on a vehicle tank, the cooling tank further including an inlet, the inlet being connected to a fuel inlet conduit via a check valve and the fuel inlet conduit including an arrangement for connecting the inlet to an outlet from the heat exchanger, or to an outlet from a vehicle tank, and the outlet of the heat ex
Abstract: A wind deflector arrangement includes a wind deflector configured to reduce air resistance, the wind deflector being arranged on a cab roof of a vehicle, the wind deflector being pivotable around a substantially transversal axis of the vehicle, wherein the wind deflector arrangement further includes at least one air pressure sensor for measuring an air pressure during traveling of the vehicle, wherein the at least one air pressure sensor is arranged within a space formed by the wind deflector and the cab roof of the vehicle. A method for controlling a wind deflector arrangement and a vehicle including such a wind deflector arrangement are also provided.
Abstract: The present invention relates to a method for controlling a clutch arrangement (102) of a vehicle transmission (100) arranged within a gearbox housing (104) of a vehicle, the clutch arrangement being connected to a pneumatically controlled actuator arrangement (106) for controllably arrange the clutch arrangement between a closed position and an open position, wherein the vehicle transmission further comprises at least one rotatable transmission component (108, 108?, 108?) configured to assume an engaged state, a disengaged state and an at least partially engaged state. By means of the method, the rotatable transmission component is arranged to be positioned in the at least partially engaged state for increasing the heat within the gearbox housing.
Abstract: A vehicle cab body for a vehicle includes a cab body structure including a roof structure, side wall structures, and a rear wall structure, wherein the vehicle cab body further includes a vehicle battery, wherein a portion of at least one of the roof structure, side wall structures, and rear wall structure forms at least a part of a housing for the vehicle battery. A vehicle and a vehicle battery arrangement are also provided.
Abstract: The invention concerns a fuse box, comprising a busbar (6) and at least one fuse (8) connected to the busbar, each fuse including two opposite end portions (8A, 8B) and a central portion (82), at least the central portion of each fuse and a section of the busbar being encapsulated in a plastic coating layer. The central portion (82) includes a part (84) of reduced cross-section. The two end portions (8A, 8B) include two respective electrical connectors (81A, 81B), and at least the two electrical connectors (81A, 81B) of each fuse (8) are not encapsulated in the plastic coating layer, so that a new fuse (12) can be connected between the two electrical connectors (81A, 81B) in replacement of a blown fuse (8).
Abstract: 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.
Abstract: 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.
September 23, 2016
July 23, 2020
VOLVO TRUCK CORPORATION
Lennart ANDERSSON, Arne ANDERSSON, Bengt JOHANSSON, Staffan LUNDGREN, Nhut LAM
Abstract: A turbocharger having a swing vane nozzle assembly—VGT—is provided. The turbocharger includes a turbine housing and a bearing housing. The swing vane nozzle assembly includes a front nozzle ring, a rear nozzle ring, and a plurality of pivotable gas flow control vanes arranged between the front nozzle ring and the rear nozzle ring. The rear nozzle ring is radially guided by the turbine housing, a radially outer portion of the front nozzle ring is clamped between the bearing housing and the turbine housing thus forming an axial guidance of the front nozzle ring, and an inner periphery of the front nozzle ring is arranged at a distance from the bearing housing.
Abstract: A control unit decides whether or not a first condition that a service brake is released, a parking brake is actuated, and a transmission is shifted into neutral is established at a vehicle stopping time. In addition, the control unit decides whether or not a second condition that the service brake is actuated, and the transmission is shifted to an ahead stage is established at the vehicle stopping time. Then, the control unit stops the engine when the first condition or the second condition is established.
Abstract: Disclosed is an assembly to be mounted at an end portion of an axle of a vehicle, the axle including a differential carrier housing containing a differential and drive shafts, each having one end connected to the differential and a second end to connect to a wheel of the vehicle. The assembly includes a cover to be mounted at the end portion of the axle and fastened to a wheel hub, and a stop elastically compressible in the axial direction and fastened to the cover so as to face and contact one end face of a drive shaft. The stop includes a first part having a first cross-section S1 and configured to absorb in compression axial movements of the drive shaft, and a second part having a second cross-section S2 smaller than the first cross-section S1 and configured to provide a substantially point contact with the drive shaft end face.
December 20, 2016
Date of Patent:
July 14, 2020
VOLVO TRUCK CORPORATION
Yann Depoorter, Thomas Barillot, Serge Vananty, Chris Clezardin, Michael Joliet
Abstract: 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.
Abstract: An internal combustion engine system includes a cylinder block with a plurality of cylinders, a gas intake manifold for providing at least air to the cylinder block and an exhaust gas manifold for exiting the exhaust gas from the cylinder block, wherein the exhaust gas manifold includes at least a main exhaust gas outlet and a waste gate exhaust gas outlet, wherein the main exhaust gas outlet is connected to a main exhaust gas pipe for guiding the exhaust gas to a main exhaust gas after treatment system and the waste gate exhaust gas outlet is connected to a waste gate exhaust gas pipe, and wherein the waste gate exhaust gas pipe is reconnected to the main exhaust gas pipe upstream of the main exhaust gas after treatment system and includes at least one waste gate exhaust gas after treatment unit, such as an oxidation catalyst such as a diesel oxidation catalyst, for catalytically treating the exhaust gas streaming through the waste gate exhaust gas pipe, and to a method for increasing the temperature in an i
Abstract: 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.
December 14, 2015
Date of Patent:
July 7, 2020
VOLVO TRUCK CORPORATION
Lennart Andersson, Arne Andersson, Bengt Johansson, Nhut Lam, Staffan Lundgren
Abstract: A method is provided for measuring exhaust gas recirculation (EGR) flow in. an engine system wherein turbo speed of a turbocharger, inlet pressure upstream of a compressor, boost pressure upstream of an engine, and engine intake temperature upstream of the engine are measured. Air mass flow into the engine system is calculated as a function of the turbo speed, inlet pressure, and boost pressure, exhaust mass flow is calculated as a function of the boost pressure, the engine intake temperature, volumetric efficiency of the engine, and engine size, and EGR flow is determined, by subtracting air mass flow from exhaust mass flow. A method for controlling emissions from an engine system, and an. engine system are also provided.
September 23, 2017
July 2, 2020
VOLVO TRUCK CORPORATION
Adam MYERS, Russell KING, Jan WIMAN, Georgios ANGELIDIS
Abstract: A method of controlling an internal combustion engine in a vehicle that includes a cylinder, a fuel system for supplying fuel to the cylinder, an air guide arranged to guide an air flow to the cylinder, and an exhaust guide arranged to guide a gas flow from the cylinder, the method including controlling the engine to provide a braking torque, the control including terminating the supply of fuel to the cylinder, restricting the flow through the exhaust guide, and restricting the flow through the air guide. The control of the engine to provide a braking torque also includes determining a value of a rotational speed of a turbocharger of the engine, and adjusting, in dependence on the determined turbocharger rotational speed value, the restriction of the flow through the air guide, and/or the restriction of the flow through the exhaust guide.