汽车动力性、经济性案例 2010_LMSImagine_BalancingVehicleEnergyPerformance.pdfVIP

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2017-03-15 发布于浙江
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汽车动力性、经济性案例 2010_LMSImagine_BalancingVehicleEnergyPerformance.pdf

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? EVS-25 Shenzhen, China, Nov. 5-9, 2010 The 25th World Battery, Hybrid and Fuel Cell Electric Vehicle Symposium Exhibition Balancing vehicle energy performance with drivability and thermal comfort: benefits of a multi-domain system simulation approach in the case of an electric- hybrid vehicle Lionel Broglia, Matthieu Ponchant, Renaud Meillier LMS Imagine, 84 quai Charles de Gaulle, 6906 Lyon, France E-mail: lionel.broglia@ Abstract— The potential improvement in fuel economy expected from Hybrid Electric Vehicles is between 20% and 40%, depending on the level of hybridization implemented. But in the same time, consumers want cars that are fun to drive as well as safe, comfy and ever cheaper. Translated to vehicle engineering targets, this means that seemingly conflicting engineering challenges need to be reconciled to manufacture the cars that will determine the world’s future mobility. Numerical simulators at system level, allowing not only to simulate the impact of new powertrain and vehicle technologies on fuel consumption but also on other attributes like drivability and thermal comfort are now mandatory to keep the development time and cost of vehicles into acceptable limits. EVS25 Copyright. Keywords— Model Based System Engineering, Energy Management, Thermal comfort, Driveability 1. Introduction When designing Hybrid vehicles, engineers are facing important challenges due to increased interactions between the main vehicle subsystems and the diversification of both powertrain technologies and architectures. As an example, the range of hybrid transmissions includes serial hybrids, parallel and power split hybrids with variable hybridization rates from micro hybrids (start go systems) to full hybrids. Because of the increasing number of interactions (mechanical, thermal, electrical, hydraulic, controls) between the vehicle subsystems, design analyses at component level proved to be insufficient to reach best performances and driving pleasure while at the same