Just before the Geneva Motor Show, Lotus unveiled a new hybrid technology demonstration vehicle called EVE (efficient, viable and environmental), based on a Proton Gen2. The battery pack for EVE was supplied by nickel metal hydride battery specialist Cobasys. The pack used in the EVE car is a NiMHax 144V, 30kW unit that has integrated cooling and battery management system including software.
The Cobasys pack was designed to be plug and play for easy integration into the vehicle and includes a liquid cooling system. The integrated software is designed to optimize the charging of the individual cells to ensure maximum performance, lifespan and safety of the system. Cobasys is the supplier of battery packs for the current General Motors mild hybrid systems in the Saturn Aura and Vue and the upcoming Chevrolet Malibu. The Cobasys press release is after the jump.
Lotus Engineering "EVE Hybrid" Program
Orion, MI, March 19, 2007 -- Cobasys, a leading supplier of advanced integrated energy storage solutions, today confirmed that it has been selected to supply its NiMHax® Nickel Metal Hydride (NiMH) battery systems for integration in the Lotus Engineering EVE (efficient, viable and environmental) vehicle. The "EVE Hybrid" technology, displayed in a Proton Gen2 vehicle, was unveiled at the Geneva International Motor Show and featured a Cobasys NiMHax 144 Volt 30 kW energy storage system with integrated cooling. Lotus Engineering selected the Cobasys system because of their leadership role in hybrid battery system development and integration.
The NiMHax battery system utilizes the Cobasys Series-1000 NiMH battery modules and incorporates all necessary features that enable "plug-and-play" capability for easy installation into the EVE Hybrid. The NiMHax system features include: fully integrated battery management system hardware and software, redundant safety controls, packaging, wiring and thermal management based on a newly developed liquid cooling system that optimizes high power HEV performance. Fully integrated control algorithms were also implemented to help optimize the energy management functions and product durability.
"We have built a reputation for offering reliability, high performance, safety and long-life in a package ideally suited for a multitude of transportation applications," stated Scott Lindholm, Vice President - Sales and Systems Engineering. "At Cobasys, we are using our unique systems integration 'know how' to help hybrid vehicle manufacturers around the world offer consumers efficient, cost competitive and dependable hybrid vehicles." The Lotus Engineering project demonstrates the Cobasys commitment to helping automakers accelerate the commercialization of their hybrid strategies. Cobasys' totally integrated "plug-and-play" system technology minimized development time and provided the optimal business case proposition.