Even the most efficient internal combustion engine can only convert about one-third of the energy derived from fossil fuels into the mechanical kinetic energy needed to power a car. The rest of the energy is mostly wasted, either through exhaust heat, through the engine’s cooling system, or...
Most of BMW's EfficientDynamics technologies are pretty sleepy numbers: nearly-invisible aerodynamic tweaks, thermal efficiency improvements, electric power-assist systems... April 6, 2011 by Nelson Ireson
For years, engineers have avoided heat in cars to protect components from overheating. Now, this goal is being turned on its head as automakers attempt to harness previously... October 19, 2009 by Viknesh Vijayenthiran