Intelligent hybrid technology could offer great efficiency and simplicity than a full hybrid powertrain
Audi is working on a new form of ‘coasting hybrid’ that uses a high-power starter motor to enable the car’s engine to be turned on and off frequently during a journey.
Stop-start is now a familiar fitment in modern cars but with the iHEV, Audi is proposing to take this further by switching off the engine during a car’s journey, exploiting momentum and gravity to keep a car moving forward without using fuel.
The Intelligent Hybrid Vehicle concept is based on an Audi A7 and uses an unusual 48V electrical system, powered by a 48V lithium-ion battery stored in the boot, to drive a electric belt-drive starter motor. This spins an idled engine quickly and seamlessly back into life.
The iHEV is intended to work in combination with Audi’s Predictive Efficiency Assistant. A ‘pre-development’ project, PEA will use information from the navigation system - including road gradient data and local speed limits - and information from road signs so that it can predict what is around the next corner and make driving suggestions to the driver that will reduce fuel consumption.