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regenerative brakes

  • 2017 Tesla Model S

    One of the benefits of electric cars is that slowing down becomes a useful activity. Regenerative braking recovers energy normally lost as friction heat, as it does when the accelerator pedal is not pushed and the car is coasting. In some cars, regeneration is aggressive enough to allow "one-pedal driving," where the friction brakes are only needed for hard deceleration, or to bring the car to a complete stop. DON'T MISS: BMW i3: How Far Can You Go Without Touching The Brake Pedal? (Aug 2015) But how much energy do these systems really recover at any given time? Would it be possible, say, to...

  • 2015 BMW i3
    BMW i3: How Far Can You Go Without Touching The Brake Pedal?

    The regenerative braking system in the BMW i3 electric car is quite extreme. If you plan ahead and allow enough stopping distance, by lifting off the accelerator, this little electric car will come to a complete stop, without ever requiring a touch of the brake pedal. That behavior recently led...

  • 2016 Chevrolet Volt sneak peek for owners, Los Angeles, Nov 2014
    2016 Chevrolet Volt To Add On-Demand Regenerative Braking

    With little morethan three weeks to go until the 2016 Chevrolet Volt is revealed, its maker is dribbling out more tantalizing details on the all-new car. The latest is a YouTube video published yesterday that shows two members of the development team--familiar faces to Volt fans--demonstrating a...

  • Nissan Leaf at Haleakala volcano screencap.
    Nissan Leaf Vs The Volcano: The Silent Ascent

    A Nissan Leaf puts its regenerative brakes to good use traversing Hawaii's Haleakala volcano.

  • AMC Amitron concept car, 1967
    Electric-Car Trivia: When Was Regenerative Braking First Used?

    Regenerative braking is a standard and expected part of any electrified car now, from Honda's mild hybrids up through battery-electric vehicles like the Tesla Model S. It lets the car recapture energy from momentum, which would otherwise be wasted as brake heat, by running the electric motor in...

  • i-ELOOP screens in Mazda Connect  -  2014 Mazda 3 Grand Touring
    2014 Mazda 3: How Does It Drive With i-ELOOP?

    Mazda’s most recently redesigned models all feature the SkyActiv badge—corresponding to a suite of engines, transmissions, body structures, and other core components engineered around the idea of maintaining a responsive, sporty driving feel while making major improvements in fuel...

  • 2014 Mazda Mazda6

    The automobile market is no longer a stranger to cars achieving highway mileage of 40 mpg, but to see such a figure coming from a midsize car is quite an impressive feat. What's more, the midsize car in question--Mazda's 2014 Mazda6 sedan--has no diesel engine nor hybrid system to help it reach this mileage. Instead, Mazda puts the 6's impressive gas mileage down to its efficient SkyActiv range of engines and the much-vaunted i-ELOOP regeneration technology. Ordinarily, brake energy regeneration is something found in hybrid vehicles, capturing energy lost when slowing down, storing it in a...

  • 2012 Ford Escape Hybrid
    Ford: Regenerative Braking Has Saved 100 Million Gallons Of Gas

    It's pretty easy to take regenerative braking for granted, these days--virtually every electric and hybrid car on sale uses it to some extent. Maybe we should be a little more appreciative of its benefits, as Ford estimates owners of its vehicles have saved 100 million gallons of gasoline over the...

  • 2014 Cadillac ELR
    2014 Cadillac ELR: Variable Electric Regen Via Paddle Shifters

    Paddle shifters on an electric vehicle might seem like a bit of an engineering oversight. After all, what use is manual control over gears if there are no gears to control? Think laterally though, and the appearance of paddle shifters in the 2014 Cadillac ELR makes a lot of sense--variable...

  • Nissan Serena
    Nissan’s New Japanese Minivan Uses Brakes To Power Electronics

    In hybrid and electric cars, regenerative braking systems are used to convert kinetic energy into electrical energy under braking, slowing the car down and improving gas mileage or all-electric range. But Nissan’s latest iteration of the Japanese-market Serena minivan uses regenerative...

  • 2014 Volkswagen Golf blue-e-motion prototype – Copyright High Gear Media
    Volkswagen Golf Blue-e-motion: Prototype Drive Report (Video)

    Driving pre-production prototypes of new electric cars is part of life here at GreenCarReports, as it enables us to give you the best possible evaluation of an up-coming new car before it hits the dealer lots. Recently however, we got a chance to sit behind the wheel again of the Volkswagen Golf...

  • Nissan Leaf Wheel
    Drive An Electric Car? Remember To Exercise Your Car’s Brakes!

    If you drive a plug-in car or a hybrid, the chance are you’ll be familiar with the concept of regenerative braking. But although regenerative braking might be the preferred way to slow down a plug-in or hybrid car, it could mean that your car’s traditional friction brakes don’t...

  • Mazda i-ELOOP regenerative braking system with capacitor storage

    Mazda has supplemented i-Stop with a capacitor-based regenerative-braking system, called i-ELOOP, that should provide some of the benefits of a mild-hybrid system without added bulk.

  • 2011 Chevrolet Volt on test in Little Rock, Arkansas, July 2011
    2011 Chevrolet Volt's Extra 'Free' Electric Miles In Gas Mode

    The 2011 Chevrolet Volt adds hidden fuel-free miles to the Volt’s total range

  • 2011 Chevrolet Volt test drive, Michigan, October 2010
    How To Make Your 2011 Chevy Volt Drive Like a Tesla Roadster

    Pretty much anyone who's driven one loves the performance of the Tesla Roadster, the first modern electric car with a lithium-ion battery pack. The 2011 Chevrolet Volt is a much less radical electric car than the Roadster in certain ways, and one of them is its accelerator response. Volt: Just like...

  • 2010 Ford Fusion Hybrid
    New Hybrid Braking Issue: First Prius, Now Ford Fusion Hybrid

    Another day, another hybrid braking problem. Only this time, it's not Toyota. It's Ford. Late yesterday, Ford announced a "customer satisfaction program" that will ask that owners of 2010 Ford Fusion Hybrid and 2010 Mercury Milan Hybrid models built before October 17 to bring the cars to their...

  • 2010 Toyota Prius 5dr HB II (Natl) Angular Front Exterior View
    UPDATE: Braking Issue In 2010 Toyota Prius Hybrid, Recall TBD

    UPDATE: The U.S. National Highway Traffic Safety Administration has opened a formal inquiry into the brakes of the 2010 Toyota Prius hybrid. It has now received 124 complaints of faulty brakes, out of roughly 37,000 of the cars sold to date in the U.S. Toyota said it would cooperate fully with the...

  • 2010 Toyota Prius 5dr HB II (Natl) Grille
    UPDATE: Toyota Admits Braking Problems, On 2010 Prius Only

    Things are moving fast in the land of Toyota safety issues and recalls. Yesterday, we told you that the 2010 Toyota Prius was being investigated for braking problems in Japan. Today, Toyota has admitted that most 2010 Prius models (those built between the start of production last spring and late...

  • 2010 Toyota Prius

    Citing allegations of braking loss or slippage, Japan's Ministry of Transportation ordered Toyota to launch an investigation into possible brake problems in the new 2010 Toyota Prius hybrid. That car, currently in short supply globally and also the best-selling car in Japan, is the subject of 14 complaints from drivers in Japan and more than 100 in the U.S. 2010 Prius only, not earlier models Toyota's investigation will be restricted to the third-generation 2010 Prius, introduced in the U.S. early last year. It will not cover  either the first-generation (2000-2003) or second-generation...

  • 2011 Chevrolet Volt - testing on Pike's Peak, October 2009
    Electric Cars Are Real Cars: 2011 Chevy Volt Climbs Pike's Peak

    We've written before about some of the misconceptions around high-mileage and electric cars, among them that they're essentially glorified golf carts. Now the test engineers for the 2011 Chevrolet Volt have taken their  extended-range electric vehicle up the twisty 19-mile road to the top of...

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