Quantum Fuel Systems Technologies Worldwide Inc. says W. Brian Olson has been appointed as the company's permanent CEO, and Bradley J. Timon has been named the permanent chief financial officer. Both were appointed to these roles on an interim basis in mid-May.

Quantum focuses on developing and producing advanced vehicle propulsion systems, fuel storage technologies and alternative fuel vehicles. The company's portfolio includes electronic and software controls, hybrid electric drive systems, natural gas and hydrogen storage and metering systems, and other alternative fuel technologies.