Editing Start-stop system (section)

===Mazda===

The i-Stop system, [[Mazda]]'s first start stop system, detects which piston is in the best position to restart quickest, which is the one in the combustion stroke phase, where air and fuel are in the cylinder, ready to be ignited. The mixture in this cylinder is ignited by the spark plug, forcing that piston down, and with assistance from the starter motor, results in a near instantaneous engine restart time of 0.35 seconds.<ref>{{cite web |url=http://www.topgear.com/uk/mazda/3/road-test/i-stop |title=Mazda 3 i-Stop |work=Top Gear |access-date=2011-12-11 |archive-date=2012-05-01 |archive-url=https://web.archive.org/web/20120501213723/http://www.topgear.com/uk/mazda/3/road-test/i-stop |url-status=dead }}</ref>

In 2011, Mazda announced i-ELOOP, a system which uses a variable-voltage [[alternator]] to convert kinetic energy to electric power during deceleration. The energy stored in a [[Electric double-layer capacitor|double-layer capacitor]], is used to supply power needed by vehicle electrical systems. When used in conjunction with Mazda's start-stop system, i-Stop, the company claims fuel savings of up to 10%.<ref>Kurt Ernst (29 November 2011). [http://www.motorauthority.com/news/1069983_mazdas-regenerative-braking-system-switches-batteries-for-capacitors "Mazda's regenerative braking system switches batteries for capacitors"]. ''Motor Authority''.</ref>