Abstract: Methods and systems are provided to control a regenerative braking system comprising a battery, e.g., of a vehicle. The regenerative braking system harvests energy from a braking event. The energy can be stored in the battery, used to power a plurality of devices in the vehicle, or the battery can be preconditioned to provide more capacity to account for a braking event. The vehicle system may comprise one or more electrical loads configured to use power from the battery. The method comprises detecting a regenerative braking event of the vehicle and activating a first electrical load to consume the energy from the regenerative braking event.

Abstract: A flow management device comprises an outer chamber with an inlet arranged to receive a flow in a first flow direction and an outlet arranged to provide the flow in a second flow direction different from the first direction, and a duct arranged within the chamber, the duct having a first end configured to receive the flow from the inlet and a second end configured to release the flow towards the outlet, wherein a cross-sectional area of the duct increases towards each of the first and second ends of the duct.

Abstract: An engine assembly and a method of control thereof is provided. The engine assembly comprises: an exhaust gas aftertreatment device having an inlet for receiving exhaust gases leaving an engine; a heater for selectively heating gases at or upstream of the exhaust gas aftertreatment device; an air moving device for driving a flow of gases into the inlet of the exhaust gas aftertreatment device when the engine is in a non-running condition; and a controller configured to, prior to the engine being started: operate the heater to heat gases at or upstream of the inlet; and operate the air moving device to drive a flow of gases into the inlet to thereby heat the exhaust gas treatment device.

Abstract: Methods and systems are provided for an engine housing assembly. In one example, an engine housing assembly comprises an engine housing component, the housing component at least partially defining a first bore for receiving a first shaft and at least partially defining a second bore for receiving a second shaft; and a reinforcement member cast into the housing, the reinforcement member having a lower coefficient of thermal expansion than the housing component, wherein the reinforcement member at least partially surrounds the first and second bores. A method of manufacturing the engine housing assembly is also provided.

Abstract: Methods and systems for an engine intake system are provided. In one example, a system includes a first charge air cooler arranged upstream of a second charge air cooler. The first charge air cooler is configured to provide thermal transfer between a compressed charge air and a fresh intake air.

Abstract: An engine assembly and a method of control thereof is provided. The engine assembly comprises: an exhaust gas aftertreatment device having an inlet for receiving exhaust gases leaving an engine; a heater for selectively heating gases at or upstream of the exhaust gas aftertreatment device; an air moving device for driving a flow of gases into the inlet of the exhaust gas aftertreatment device when the engine is in a non-running condition; and a controller configured to, prior to the engine being started: operate the heater to heat gases at or upstream of the inlet; and operate the air moving device to drive a flow of gases into the inlet to thereby heat the exhaust gas treatment device.

Abstract: Methods and systems are provided for a cam drive system of an engine. In one example, a front end of an engine includes an idler gear assembly including an idler gear and idler pulley, the idler gear in meshing engagement with a first end of a crankshaft and the idler pulley coupled to and sharing a rotational axis with the idler gear. The front end of the engine may further include first and second camshaft pulleys positioned vertically above the idler gear assembly and a cam drive belt contacting each of the first and second camshaft pulleys and the idler pulley.

Abstract: At least one coated valve seat region has at least one first layer and a second layer, the second layer is arranged on the first layer, and the first layer and the second layer are different. The first layer and the second layer are each formed by a local thermal deposition welding method. In the case of a cylinder head of an internal combustion engine, a valve seat region is formed by depositing a first layer on a substrate material of the valve seat by a laser deposition welding method in one method step and, in a subsequent method step, depositing a second layer on the first layer by a laser deposition welding method. The second layer contains a material which exerts a material hardening effect.

Abstract: Methods and systems for an engine intake system. In one example, a system comprises a first charge air cooler arranged upstream of a second charge air cooler. The first charge air cooler is configured to provide thermal transfer between a compressed charge air and a fresh intake air.

Abstract: Methods and systems are provided for an engine housing assembly. In one example, an engine housing assembly comprises an engine housing component, the housing component at least partially defining a first bore for receiving a first shaft and at least partially defining a second bore for receiving a second shaft; and a reinforcement member cast into the housing, the reinforcement member having a lower coefficient of thermal expansion than the housing component, wherein the reinforcement member at least partially surrounds the first and second bores. A method of manufacturing the engine housing assembly is also provided.

Abstract: At least one coated valve seat region has at least one first layer and a second layer, the second layer is arranged on the first layer, and the first layer and the second layer are different. The first layer and the second layer are each formed by a local thermal deposition welding method. In the case of a cylinder head of an internal combustion engine, a valve seat region is formed by depositing a first layer on a substrate material of the valve seat by a laser deposition welding method in one method step and, in a subsequent method step, depositing a second layer on the first layer by a laser deposition welding method. The second layer contains a material which exerts a material hardening effect.

Abstract: Methods and systems are provided for a cam drive system of an engine. In one example, a front end of an engine includes an idler gear assembly including an idler gear and idler pulley, the idler gear in meshing engagement with a first end of a crankshaft and the idler pulley coupled to and sharing a rotational axis with the idler gear. The front end of the engine may further include first and second camshaft pulleys positioned vertically above the idler gear assembly and a cam drive belt contacting each of the first and second camshaft pulleys and the idler pulley.

Abstract: Methods and systems are provided for a gear driven diesel fuel injection pump of an engine. In one example, a front end of an engine includes an idler gear in meshing engagement with a first end of a crankshaft and a fuel pump drive gear in meshing engagement with the idler gear. The front end of the engine may further include a fuel pump, where an input shaft of the fuel pump is directly coupled to the fuel pump drive gear.

Abstract: Methods and systems are provided for a boosted engine system having an engine arranged to receive boosted air from a variable geometry turbocharger and an electrically powered compressor arranged in parallel with the turbocharger. During temporary high torque demands above a predefined level, the electrically powered compressor may be used to supplement the flow of boosted air from the turbocharger. Additionally, a recirculation circuit around the electrically powered compressor may be provided to build up pressure in the electrically powered compressor before it is connected to the engine so as to minimize fluctuations in engine boost pressure upon start-up of the electrically powered compressor.

Abstract: Methods and systems are provided for a cam drive system of an engine. In one example, a front end of an engine includes an idler gear assembly including an idler gear and idler pulley, the idler gear in meshing engagement with a first end of a crankshaft and the idler pulley coupled to and sharing a rotational axis with the idler gear. The front end of the engine may further include first and second camshaft pulleys positioned vertically above the idler gear assembly and a cam drive belt contacting each of the first and second camshaft pulleys and the idler pulley.

Abstract: A cooling system for an internal combustion engine is provided. The cooling system comprises: a cooling passage provided within an engine housing of the engine, the cooling passage configured to carry a bulk flow of coolant to cool the engine housing, wherein the bulk flow of coolant within the cooling passage is driven by convection or a pump; and one or more additional cooling passages provided within the engine housing, each configured to introduce a flow of coolant into the cooling passage; one or more additional cooling passage pumps configured to pump coolant within the additional cooling passages; wherein the engine housing comprises one or more high temperature regions, which are at a higher temperature than one or more low temperature regions of the engine housing; and wherein the additional cooling passages are configured to direct the introduced coolant towards the one or more high temperature regions.

Abstract: Methods and systems are provided for an internal combustion engine having at least two cylinders configured in such a way that they form two groups, at least one cylinder of a first group being a cylinder which is operational in the event of a partial deactivation of the engine, and at least one cylinder of a second group being formed as a load-dependently switchable cylinder. An inlet-side throttle element is provided with at least one intake line of the switchable cylinder, by means of which the size of the flow cross section of the intake line can be varied, whereby the charge-air flow rate supplied to the deactivated cylinder in the event of a partial deactivation of the engine can be adjusted. Each outlet opening of a load-dependently switchable cylinder is equipped with a partially variable valve drive, with an outlet valve which opens or shuts off the outlet opening.

Abstract: Methods and systems are provided for a boosted engine system having an engine arranged to receive boosted air from a variable geometry turbocharger and an electrically powered compressor arranged in parallel with the turbocharger. During temporary high torque demands above a predefined level, the electrically powered compressor may be used to supplement the flow of boosted air from the turbocharger. Additionally, a recirculation circuit around the electrically powered compressor may be provided to build up pressure in the electrically powered compressor before it is connected to the engine so as to minimize fluctuations in engine boost pressure upon start-up of the electrically powered compressor.

Abstract: Methods and systems are provided for a gear driven diesel fuel injection pump of an engine. In one example, a front end of an engine includes an idler gear in meshing engagement with a first end of a crankshaft and a fuel pump drive gear in meshing engagement with the idler gear. The front end of the engine may further include a fuel pump, where an input shaft of the fuel pump is directly coupled to the fuel pump drive gear.

Abstract: Methods and systems are provided for a cam drive system of an engine. In one example, a front end of an engine includes an idler gear assembly including an idler gear and idler pulley, the idler gear in meshing engagement with a first end of a crankshaft and the idler pulley coupled to and sharing a rotational axis with the idler gear. The front end of the engine may further include first and second camshaft pulleys positioned vertically above the idler gear assembly and a cam drive belt contacting each of the first and second camshaft pulleys and the idler pulley.