Skip to main content

Mazda first of its kind regenerative braking system developed

Mazda Motor Corporation has developed a regenerative braking system for passenger cars capable of improving fuel economy by approximately 10 per cent. The new i-ELoop (intelligent energy loop) system, claimed to be the first of its kind in the world to use a capacitor, will begin to appear in Mazda vehicles from 2012.
March 26, 2012 Read time: 2 mins
RSS1844 Mazda Motor Corporation has developed a regenerative braking system for passenger cars capable of improving fuel economy by approximately 10 per cent. The new i-ELoop (intelligent energy loop) system, claimed to be the first of its kind in the world to use a capacitor, will begin to appear in Mazda vehicles from 2012.

i-ELoop efficiently converts the vehicle’s kinetic energy into electricity as it decelerates, using the electricity to power the climate control, audio system and numerous other electrical components. The innovative capacitor technology can store large volumes of electricity and, unlike batteries, can be charged and discharged rapidly and is resistant to deterioration through prolonged use.

Mazda claims that, unlike the regenerative braking systems found in hybrid vehicles, its highly efficient solution avoids the need for a dedicated electric motor and battery. i-ELoop features a new variable voltage(12-25V) alternator, a low-resistance electric double layer capacitor (EDLC) and a DC/DC converter. The system starts to recover kinetic energy the moment the driver lifts off the accelerator pedal and the vehicle begins to decelerate. The variable voltage alternator generates electricity at up to 25V for maximum efficiency before sending it to the EDLC for storage. The capacitor, which has been specially developed for use in a vehicle, can be fully charged in seconds. The DC/DC converter steps down the electricity from 25V to 12V before it is distributed directly to the vehicle’s electrical components.

For more information on companies in this article

Related Content

  • America explores road user charging options
    November 27, 2017
    Jack Opiola casts an eye over the numerous road user charging pilots underway in the US. In the USA, congestion mitigation and improving mobility have often focused on network improvements, increased road capacity, improved public transport, high-occupancy toll (HOT) lanes or ‘express lanes’ and ITS measures – all of which require political capital and major funding. Nowadays, political capital is as hard to obtain as funding because more political leaders are recognising the decline of fuel excise tax in
  • Battery bottleneck: EV roll-out at risk
    June 17, 2019
    In order for the take-up of electric vehicles – a key part of the future mobility mix - to grow, we need batteries. And that might prove tricky, reports Graham Anderson Industry and commodities experts fear that the growth in electric vehicles (EVs) could be much slower than predicted due to bottlenecks in global battery market supply chains. “People seem to think that the switch from the internal combustion engine to electric vehicles just means you plug your car in rather than fill it with petrol,” a
  • Florida's free flow tolling eases congestion, improves safety
    July 24, 2012
    A decade since Florida's Turnpike Enterprise first deployed electronic toll collection, the organisation's Director of Toll Operations Rick Nelson and Tom S. Knuckey of PBS&J look at progress. A decade on from the deployment of Florida's Turnpike Enterprise's state-wide SunPass pre-paid Electronic Toll Collection (ETC) programme, transponder sales have ballooned from 5,000 to more than 4,000,000. Over 70 per cent of the state's turnpike drivers participate in the system and transponder sales continue to gro
  • FLIPPER - improving the provision of flexible transport services
    February 2, 2012
    John Nelson and Brian Masson, Centre for Transport Research, University of Aberdeen, UK, describe the FLIPPER initiative which is intended to improve the provision of flexible transport services