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Recharge Wrap-up: Ferrock a carbon-negative cement substitute, Audi makes e-diesel

A cement alternative uses recycled materials and traps CO2 rather than producing it. Invented by David Stone at the University of Arizona, Ferrock uses recycled steel dust and glass to produce a substance stronger than conventional concrete. Cement has a high carbon footprint from the high heat needed to process the limestone. Ferrock needs no such heat, and it actually uses CO2 to harden, making it, as Stone calls it, a carbon-negative material. Learn more in the video above, see the transcript at PBS NewsHour and read more at Green Car Reports. Teslarati offers a detailed rundown of Tesla's new Valet Mode feature for the Model S. Part of the Firmware 6.2 update, Valet Mode allows the owner to disable certain performance features and block personal information when letting someone else drive the car. It limits the car's to speed to 70 miles per hour, and caps output at 80 kW. It can also disable mobile app access, Homelink, Bluetooth and wifi and the "Places" function, which stores addresses for you. The folks at Teslarati did find some shortcomings in the new feature, though. Read more at Teslarati. Audi has produced its first batch of e-diesel made from water and CO2. The fuel is made by reacting hydrogen from the water with CO2 to make long-chain hydrocarbon compounds called "blue crude." That can then be refined similarly to crude oil to make e-diesel, which is a fuel free from sulfur and aromatic hydrocarbons. That e-diesel can be used on its own, or mixed with fossil fuel diesel to power a vehicle. "In developing Audi e-diesel we are promoting another fuel based on CO2 that will allow long-distance mobility with virtually no impact on the climate," says Audi Head of Sustainable Product Development Reiner Mangold. Read more in the press release below. Fuel of the future: Research facility in Dresden produces first batch of Audi e-diesel - The verdict: Pilot plant produces high-quality diesel fuel - No need for mineral oil: e-diesel made from water, CO2 and green power - Minister Wanka: "Synthetic diesel using CO2 is a huge success" Audi has taken another big step in the development of new, CO2 neutral fuels: A pilot plant in Dresden has started production of the synthetic fuel Audi e diesel. After a commissioning phase of just four months, the research facility in Dresden started producing its first batches of high-quality diesel fuel a few days ago. To demonstrate its suitability for everyday use, Federal Minister of Education and Research Prof.

More automakers working to turn your smartphone into a shareable digital car key

The smartphone killed the phone book, audio player, the pocket digital camera, handheld GPS devices and voice recorders. Now that addictive, transistor-filled candy bar is coming for your car keys. The Car Connectivity Consortium (CCC) announced that it's unveiled Digital Key Release 1.0 Specification for its member companies, which is the first step in standardizing protocols. As of now, the potential is there for drivers to download a digital key that can lock and unlock the car, start it, and transfer the key to another operator in order to share the car. The CCC's aim is to save development costs, stave off a glut of similar-yet-competing technologies, and create keys that reflect the expanded use cases for cars, i.e., car-sharing services and to-your-car delivery. Next year's Release 2.0 Specification will standardize an authentication protocol between the phone and the vehicle — how a digital key is generated on a secure server and transmitted to the car and the device — and "promise more interoperability between cars and mobile devices." The CCC says that "NFC distance bounding and a direct link to the secure element of the device" will assure security. We take that to mean the phone will need to be in direct contact with the vehicle, at least to open the door. Carmakers and suppliers have been working on digital keys for years now, and the ecosystem for individual owners to open individual cars is growing. Audi showed off its Mobile Key at the 2015 Consumer Electronics Show, and now calls it Audi Connect Key, but we haven't seen much of it in the field. That same year, Volvo said it expected to sell cars with digital keys only by 2017, which clearly didn't happen. Last year, the head of sales at BMW asked, "Honestly, how many people really need [keys]? They never take it out of their pocket, so why do I need to carry it around?" Even though a digital key offers an owner more convenience and long-distance control over their vehicle, car sharing is the target — and that can even include traditional rental cars. In 2013, Continental began testing a digital key in France, aimed at integrating and simplifying the electric-car-sharing business; everything from finding a free vehicle to driving it and charging it could be done on a phone. A key could be programmed with the driver's information, so that any car the driver gets in will be automatically updated with that driver's preferences, say for audio or seating position.

VW stripped of Green Car Of The Year awards for Jetta, A3 diesels

In the wake of the ongoing VW diesel scandal, Green Car Journal has announced it will rescind the two Green Car Of The Year awards that the Volkswagen Group won with diesel vehicles that have been since been proven to not meet the stated emissions levels. The two vehicles are the 2009 VW Jetta TDI, which won in 2008, and the 2010 Audi A3 TDI, which won in 2010. Green Car Journal (GCJ) did not say if it would retroactively name any replacement winners. This is the first time in the history of the Green Car Of The Year Awards that the honor has been taken away from the winner. In a statement announcing the change, GCJ publisher Ron Cogan wrote that, "this award rescission should not cast a negative light on advanced diesel technology in general. Many diesel models from a variety of auto manufacturers meet EPA and CARB emissions standards, bringing with them higher fuel efficiency, decreased petroleum use, and lower carbon emissions – all important environmental goals." VW AND AUDI RETURNING GREEN CAR OF THE YEAR® AWARDS, VEHICLES DEEMED INELIGIBLE SAN LUIS OBISPO, Calif., Sept. 30, 2015 – Green Car Journal is rescinding the Green Car of the Year® awards previously honoring the 2009 VW Jetta TDI and 2010 Audi A3 TDI, the first time this has occurred in the award program's decade-long history. Audi of America President Scott Keogh has informed Green Car Journal that Audi will return its 2010 Green Car of the Year® award in the wake of Volkswagen Group's admission that it deliberately deceived government authorities about emissions from the Audi A3 TDI. Volkswagen of America has also informed Green Car Journal it will return its 2009 Green Car of the Year® award for the VW Jetta TDI. "Rescinding the Green Car of the Year® awards for the VW Jetta TDI and Audi A3 TDI is unfortunate but appropriate," said Ron Cogan, editor and publisher of the Green Car Journal and CarsOfChange.com. "These models were selected as Green Car of the Year® above others for compelling reasons, including high fuel efficiency, reduced carbon emissions, a fun-to-drive nature, and the ability to meet 50 state emissions requirements with advanced diesel technology." However, VW Group has now admitted that its software programming intentionally caused in-lab emissions testing to read significantly lower nitrogen oxide emissions than these vehicles actually produced on the road.