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      • Hy-HIL : new test platform for the development of hybrid vehicle

        Florent PEREZ Ing,Stephane PELLETIER 한국자동차공학회 2009 한국자동차공학회 학술대회 및 전시회 Vol.2009 No.11

        D2T, RENAULT, IFP, LMS and G2ELAB launched together the HyHIL project, a new test platform for the development of hybrid vehicles. HyHIL uses a suite of generic tools, such as D2T’s MORPHEE 2 automation system, to reproduce and assess the complex architecture of hybrid vehicles in a unique and flexible way. Combining an IC engine with an electric motor is complex: it increases the number of parameters to be calibrated during the development. This means increased time and cost, while the market demand is asking for their reduction. HyHIL helps to solve this problem by defining the best architecture of a hybrid powertrain at the early stages of development. The platform evaluates hybrid powertrain concepts and the benefits of different levels of hybridization in an engine test bed, thanks to real-time simulations developed with LMS’ AMESim simulation platform and executed by D2T’s MORPHEE 2 automation system. MORPHEE 2 executes real time models required to simulate both hybrid vehicle and driver. The MORPHEE 2 flexibility allows switching easily between the three hybrid architectures retained for this project: - "Pure thermal" mode, with simulation of an alternator-starter. - "Stop & Start" mode, with simulation of the engine’s frequent stop/start phases. - "Hybrid" mode, with simulation of electric propulsion, energy recovery during deceleration phases and battery recharging. These architectures have been tested over several standard driving cycles (NEDC, FTP, Artemis, etc.) using an energy supervisor developed by IFP which is sufficiently generic not to require specific calibration. The results obtained on the engine test bed were compared to results obtained on a real vehicle; the simulation proved to be a very realistic representation. Simulation, with the use of an environment such as AMESim and MORPHEE 2, offers a real way to assess complex powertrains without the need to manufacture the powertrain or even the complete car.

      • EtherCAT with MORPHEE 2, D2T’s Automation System A fast and reliable communication with the test bed

        Ing Jeremie EFFLAME,Ing Stephane PELLETIER 한국자동차공학회 2009 한국자동차공학회 학술대회 및 전시회 Vol.2009 No.11

        During many years, 100 ㎐ was the typical control frequency required by test bed automation systems. The increasing complexity of modern IC engine mapping has leaded the standard towards 1 ㎑, and often more. D2T’s MORPHEE 2 advanced (ⅰ) automation system offers today a solution which can reach up to 10 ㎑ (ⅱ), using the unmatchable performances of the Ethercat field bus. Todate, Ethercat is considered as the future standard for communication between test bed equipments. Many peripherals with an Ethercat link are already available on the market, such as controllers, I/O systems, CAN modules… As an Ethercat master, MORPHEE 2 is fully compatible with all Ethercat slave devices, and many acquisition systems are already interfaced with D2T’s solution: GANTNER, HBM, BECKOFF… Moreover, the Ethercat D2T solution also provides the fast ECU access function, required for rapid measurement purposes or transient engine calibration tasks. In addition to the fast speed communication, the D2T solution has many other advantages, compared with other field buses. An Ethercat network is easy to implement and the commissioning cost is being reduced. I/O conditioners can be kept as close as possible to the unit under test. Ethercat works with Ethernet, a standard for PC hardware and wiring. Thanks to Ethercat redundancy system, the reliability of the control and acquisition system is getting improved: even though a connection breaking of the network occurs, the system remains secured and goes on running. MORPHEE 2 Ethercat is now a fully proven solution which has been running on many test benches of a major OEM. (ⅰ) MORPHEE 2 is a unique real time system for automation, simulation and calibration. (ⅱ) Depending on the PC and acquisition system performance

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