Showing papers by "Srdjan Lukic published in 2002"
10 Dec 2002
TL;DR: In this paper, the effects of the new introduced electrical systems including hotel and auxiliary loads on the electrical power systems of conventional and more electric cars are presented, and system level issues such as fuel economy and vehicle performances are addressed.
Abstract: Demands for higher fuel economy, performance, and reliability as well as reduced emissions push the automotive industry to seek electrification of ancillaries and engine augmentations. In the future cars, throttle actuation, power steering, anti-lock braking, rear-wheel steering, air-conditioning, ride-height adjustment, active suspension, and electrically heated catalyst will all benefit from the electrical power system. Therefore, a higher system voltage, such as the proposed 42 V, is necessary to handle these new-introduced loads. On the other hand, due to the environmental concerns, there is a definite development towards new electrically-assisted propulsion systems that improve fuel economy. In this paper, the effects of the new introduced electrical systems including hotel and auxiliary loads on the electrical power systems of conventional and more electric cars are presented. Dynamic characteristics of electrical loads are defined for typical drive cycles. Finally, system level issues such as fuel economy and vehicle performances are addressed.
26 citations
10 Dec 2002
TL;DR: In this article, a modeling tool has been developed to study automotive systems using PSIM software, and different heat engines, transmissions, differentials, mechanical systems, control strategies, batteries, solar cells, and fuel cells have been modeled to enable simulation of vehicular systems.
Abstract: The More Electric Vehicles (MEV) concept emphasizes the utilization of electrical systems instead of mechanical, hydraulic, and pneumatic systems to optimize vehicle fuel economy, emissions, performance, and reliability. In addition, the need for improvement in comfort, convenience, entertainment, safety, security, and communications necessitates more electric automotive systems. As a result, an electric power distribution system with larger capacity and more complex configuration is required to facilitate increasing electrical loads. Due to the environmental concerns, there is also a definite development towards new propulsion systems for the future cars in the form of electric and hybrid electric vehicles (EV and HEV). Most of these new electrical systems in advanced cars utilize power electronic converters and motor drives. In this paper, a modeling tool, which has been developed to study automotive systems using PSIM software, is presented. Different heat engines, transmissions, differentials, mechanical systems, control strategies, batteries, solar cells, and fuel cells have been modeled to enable simulation of vehicular systems. Suitability of the software package in design of different automotive systems is explored as well.
8 citations