FEV GmbH | Date: 2016-09-07
The centrifugal mass arrangement (10) for the balancing of rotational accelerations of an engine housing, in particular of the engine housing of a reciprocating-piston engine, which is preferably an internal combustion engine, is equipped with a hollow cylindrical housing (16) which is provided for fastening to the engine housing (12) and which has a circumferential wall (48) with an inner side (46), and with a centrifugal mass carrier (18) which is arranged rotatably in the housing (16) and which can be coupled to the drive shaft (20) for co-rotation therewith. The centrifugal mass carrier (18) has at least two diametrically oppositely situated ends (26, 28). A roller disk (38, 40) with a circumferential surface (42, 44) is arranged on each end (26, 28) of the centrifugal mass carrier (18). Each roller disk (38, 40) is mounted rotatably on the respective end (26, 28) of the centrifugal mass carrier (18) and is supported by way of the circumferential surface (42, 44) thereof against the inner side (46) of the circumferential wall (48) of the housing (16) and, during rotation of the centrifugal mass carrier (18), rolls on the inner side (46) of the circumferential wall (48) of the housing (16).
FEV GmbH | Date: 2015-06-16
The invention relates to an exhaust gas recirculation system for an internal combustion engine, and to a method for operating an exhaust gas recirculation system of this type. Here, the exhaust gas recirculation system has an air feed line, an exhaust gas line, an exhaust gas recirculation line which leads from an EGR branch-off point in the exhaust gas line to an EGR feed-in point in the air feed line, and a throttle valve within the air feed line downstream of the EGR feed-in point.
Agency: European Commission | Branch: H2020 | Program: RIA | Phase: GV-02-2016 | Award Amount: 5.99M | Year: 2016
The decrease of CO2 & particulates emissions is a main challenge of the automotive sector. European OEMs and automotive manufacturers need new long term technologies, still to be implemented by 2030. Currently, hybrid powertrains are considered as the main trend to achieve clean and efficient vehicles. EAGLE project is to improve energy efficiency of road transport vehicles by developing an ultra-lean Spark Ignition gasoline engine, adapted to future electrified powertrains. This new concept using a conventional engine architecture will demonstrate more than 50% peak brake thermal efficiency while reducing particulate and NOx emissions. It will also reach real driving Euro 6 values with no conformity factor. This innovative approach will consequently support the achievement of long term fleet targets of 50 g/km CO2 by providing affordable hybrid solution. EAGLE will tackle several challenges focusing on: Reducing engine thermal losses through a smart coating approach to lower volumetric specific heat capacity under 1.5 MJ/m3K Reaching ultra-lean combustion (lambda > 2) with very low particulate (down to 10 nm) emission by innovative hydrogen boosting Developing breakthrough ignition system for ultra-lean combustion Investigating a close loop combustion control for extreme lean limit stabilization Addressing and investigating NOx emissions reduction technologies based on a tailor made NOx storage catalyst and using H2 as a reducing agent for SCR. A strong engine modeling approach will allow to predict thermal and combustion performances to support development and assess engine performances prior to single and multi-cylinder test bench application. An interdisciplinary consortium made of nine partners from four different countries (France, Germany, Italy, Spain) will share its cutting-edge know-how in new combustion process, sensing, control, engine manufacturing, ignition system, simulation & modeling, advanced coating, as well as after-treatment systems.
Agency: European Commission | Branch: H2020 | Program: RIA | Phase: GV-02-2016 | Award Amount: 12.06M | Year: 2016
PaREGEn addresses the short term scope of the GV-02 call via research into and the innovation of gasoline engines for light duty vehicles. Specifically, engines used in mid to premium passenger cars will be addressed. With the electrification smaller vehicles, focusing on larger cars is especially important: the need for clean, efficient & economic engines for inter-urban transport is more urgent and effective to resolve the challenges of air quality, decarbonisation & cost-effective mobility. Through using state of the art techniques, like optical engines, modelling & simulation tools (for new control strategies or understanding particle formation) and applying new engine componentry, the optimal trade-off between efficiency & emissions will be found. Of attention will be the control of particle numbers between 10 to 23nm. This learning will be used in two, manufacturer lead vehicle demonstrations. These demonstrators will use downsized engines not yet on the market. The two approaches will use different combustion, dilution, fuel injection, boosting and aftertreatment systems. Completion of the project will show the way forward to a 15% CO2 reduction along with real driving emissions limits. If adopted across all light vehicles these short term engine innovations will reduce the EU vehicle parc emissions by ~2MtCO2 in 2025, <10MtCO2 & ~10% PN>10nm in 2030. As well as improving EU competitiveness, a valuable contribution from PaREGEn will be new tools: to benefit engine design, development & control in general, long after project completion. PaREGEn has partners from EUCAR, CLEPA & EARPA; it is organized so learning from other projects in GV02 can be integrated. Experience from the PMP project and those proposed on particle measurement systems will be included via the partners & suppliers of PN-PEMS. PaREGEns partners give a global link to other nationally funded activities and, specifically, specialists in advisory roles will bring expertise from USA & Japan.
Agency: European Commission | Branch: H2020 | Program: IA | Phase: GV-6-2015 | Award Amount: 9.95M | Year: 2016
Fuel economy is a key aspect to reduce operating costs and improve efficiency of freight traffic, thus increasing truck competitiveness. The main objective of the IMPERIUM project (IMplementation of Powertrain Control for Economic and Clean Real driving EmIssion and ConsUMption) is to achieve fuel consumption reduction by 20% (diesel and urea) whilst keeping the vehicle within the legal limits for pollutant emissions. The approach relies on three stages targeting the improvement of the control strategy: * Direct optimisation of the control of the main components (engine, exhaust after-treatment, transmission, waste heat recovery, e-drive) to maximize their performances. * Global powertrain energy manager to coordinate the different energy sources and optimize their use depending on the current driving situation. * Providing a more comprehensive understanding of the mission (eHorizon, mission-based learning) such that the different energy sources can be planned and optimized on a long term. The IMPERIUM consortium consist of major European actors and is able to provide a 100% European value chain for the development of future powertrain control strategies for trucks.
Agency: European Commission | Branch: H2020 | Program: IA | Phase: GV-3-2014 | Award Amount: 23.39M | Year: 2015
In order to realize sustainable mobility in Europe, both urban and long distance vehicles for road transport will have to be significantly more efficient by 2020\ and a considerable contribution will have to come from the energy efficiency improvement of the powertrain. Moreover, together with the progressive efficiency increase coming from the engine technology evolution, the use of Low-Carbon Alternative Fuels, such as Natural Gas, will play a fundamental role to accelerate the process of decarbonization of the transportation sector that in Europe is targeted for the 2050 time horizon. In this context, being well-known the benefits of the Natural Gas Vehicles adoption in Europe, this proposal aims to exploit the main benefits of gas-powered engines developing CNG-only, mono-fuel-engines able to comply with: post Euro 6 noxious emissions 2020\ CO2 emissions targets new homologation cycle and Real Driving conditions and simultaneously improving engine efficiency and vehicle performance also with regard to its CNG range capability. These engines, based on new combustion processes, require also dedicated technological solutions for: Innovative injection, ignition and boosting system concepts Advanced exhaust gas aftertreatment system Detecting the gas-quality and its composition The results obtained from the experimental activities on the demonstration vehicles and engines will be harmonized and analysed throughout a final overall assessment of the different approaches. The demonstrator vehicles will be assessed in terms of performance and emissions with regard to NEDC, WLTP and under real driving conditions. Moreover, the final assessment of the vehicles will be certified, as independent testing, by JRC (Joint Research Centre) which will carry out additional measurements in their own testing facilities both on chassis dyno and by means of PEMS (Portable Emissions Measurement System).
Agency: European Commission | Branch: H2020 | Program: IA | Phase: GV-4-2014 | Award Amount: 28.42M | Year: 2015
The ECOCHAMPS project addresses topic GV-4-2014, Hybrid Light and Heavy Duty Vehicles. The work will, in a single coordinated project, address all aspects of this topic and will be conducted by 26 partners representing the European automotive industry (OEMs (EUCAR), suppliers (CLEPA), ESPs and universities (EARPA)) including members of ERTRAC and EGVIA. The objective is to achieve efficient, compact, low weight, robust and cost effective hybrid powertrains for both passenger cars and commercial vehicles (buses, medium and heavy duty trucks) with increased functionality, improved performance, comfort, safety and emissions below Euro 6 or VI, all proven under real driving conditions. The five demonstrator vehicles, for this purpose developed to TRL 7, that use the hybrid powertrains will among other give a direct cost versus performance comparison at two system voltage levels in the light duty vehicles, and include the modular and standardized framework components in the heavy duty vehicles. Achieving these innovations affordably will strengthen technical leadership in powertrains, enable a leading position in hybrid technology and increases the competitiveness of European OEMs. The vehicles will be ready for market introduction between 2020 and 2022 and (price) competitive to the best in-class (full hybrid) vehicles on the market in 2013. More importantly, the technology devised will impact on the reduction of CO2 emissions and the improvement of air quality. The project proposes to reach a 20% powertrain efficiency improvement and a 20% powertrain weight and volume reduction, with a 10% cost premium on the base model for the demonstrator. To meet air quality targets the project will prove, via independently supervised testing, real driving emissions at least below Euro 6 or VI limits and by simulation show the potential of the passenger car technologies to reach Super Low Emission Vehicle standards.
FEV GmbH | Date: 2016-03-04
Method for adjusting the air-fuel ratio in the exhaust gas of a direct injection internal combustion engine, wherein the combusting fuel injection is divided into a plurality of individual injections, and wherein the air-fuel ratio in the exhaust gas of the internal combustion engine for a given load (PMI) is predictively adjusted by at least one model, by adjusting the position of the centroid of heat release conversion rates and the injection amount of the total combusting fuel injection, to a value that is necessary for the regeneration of an NOx storage catalytic converter in the exhaust system of the internal combustion engine.
FEV GmbH | Date: 2016-03-24
The invention relates to a method for adjusting at least one control parameter (KP) of an internal combustion engine (200) by means of at least two setting parameters (SP), having the following steps: determining an optimum steady-state combination (110) of the at least two setting parameters (SP) in order to obtain the setpoint value (104) under steady-state boundary conditions, producing a functional dynamic relationship (120) between the control error (100), a setting expenditure (130) for the at least two setting parameters (SP) and the determined steady-state combination (110), optimizing the dynamic relationship (120) in order to determine an optimum dynamic combination (140) of the at least two setting parameters (SP), and using the optimum dynamic combination (140) for the following adjustment step during the adjustment of the at least one control parameter (KP).
FEV GmbH | Date: 2016-02-24
The invention relates to an internal combustion engine (1) having a settable variable compression ratio and having a connecting rod (3), which connecting rod has an adjustment mechanism (4) for the adjustment of the settable variable compression ratio, a first hydraulic line (5), a second hydraulic line (6), a hydraulic outflow duct (47) and a switching module (21) for the switching of the adjustment mechanism (4), wherein the switching module (21) is arranged on the connecting rod (3) and a first position of the switching module (21) corresponds to a first compression ratio and a second position of the switching module (21) corresponds to a second compression ratio that differs from the first compression ratio, wherein the switching module (21) has a switching element (22) and a sleeve (23) surrounding the switching element (22), wherein the switching element (22) and the sleeve (23) are movable relative to one another, and the switching element (22) has a recess (36) and an edge region (37) bordering the recess (36), wherein, in the first position of the switching module (21), the recess (36) and the sleeve (23) connect the first hydraulic line (5) in fluid-conducting fashion to the hydraulic outflow duct (47), and the edge region (37) and the sleeve (23) shut off a fluidic connection between the second hydraulic line (6) and the hydraulic outflow duct (47), and in the second position of the switching module (21), the recess (36) and the sleeve (23) connect the second hydraulic line (6) in fluid-conducting fashion to the hydraulic outflow duct (47), and the edge region (37) and the sleeve (23) shut off a fluidic connection between the first hydraulic line (5) and the hydraulic outflow duct (47).