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Volvo XC90 Coasting Transmission Deep Dive | How, when and why of coasting

In our recent 2021 Volvo XC90 Recharge review, its turbocharged-supercharged-hybridized powertrain delivered impressive horsepower and fuel economy. But Volvo has one additional trick up its sleeve, propelling a car with power that's simpler, cheaper and all-natural: It's the power of momentum and gravity. I've always been halfway to a hypermiler. I'm not obsessive about it, but in city driving, I enjoy timing stoplight approaches to keep the wheels rolling and avoid the inertia of restarting from a stop. There's little point to needlessly racing and braking between red lights, wasting kinetic energy (and therefore fuel). So I tend to drive strategically instead, often catching up with the drivers who jackrabbit but get hung up at the lights. And, back when I owned a long line of vehicles with manual transmissions, I coasted. Coasting used to be slightly controversial. Some claimed it doesn't actually save gas, though my mileage calculations showed otherwise. Another school of thought insisted that removing engine braking from the equation, even momentarily, constitutes a dangerous loss of control. Of course, an experienced driver can slip a manual transmission back into gear in a flash when engine braking's actually needed. And one should always use some common sense and judgment about when and where to coast. I'm not talking about careening down a 15% grade into a school zone.  Anyway, those arguments became moot when automatic transmissions pretty much took over. (And no, never coast with a typical automatic transmission. Even if it weren't damaging to your type of automatic — but assume that it is — the risk of screwing up a nudge of the shifter from drive into neutral is too great.) XC90 Recharge 8 View 18 Photos But happily, some automakers in recent years have added a coasting feature to their automatics, with the aim of eking out more fuel efficiency. Volvo calls the feature on its Aisin eight-speed "Eco Coast." Some Mercedes, BMWs and others call it "sailing" or "gliding." The Hyundai Ioniq, Ford Mustang Mach-E and Polestar 2 are among EVs that allow you to cancel out all regeneration and freewheel downhill. And future cars such as the BMW iX are also being designed to do it. By building coasting into the clockworks, automakers have taken any traffic safety concerns out of the question, because the car will instantly switch you back into gear when needed.

Volvo will issue world's first EV battery passport ahead of EU rules for 2027

LONDON — Volvo Cars is launching the world's first EV battery passport recording the origins of raw materials, components, recycled content and carbon footprint for its flagship EX90 SUV, which is about to start production, the Swedish automaker told Reuters. The passport was developed by Volvo, which is owned by China's Geely, in partnership with UK startup Circulor, which uses blockchain technology to map supply chains for companies, and took over five years to develop. Battery passports will be mandatory for electric vehicles (EVs) sold in the European Union from February 2027 showing the composition of batteries, including the origin of key materials, their carbon footprint and recycled content. Volvo's head of global sustainability Vanessa Butani told Reuters that introducing the passport nearly three years before regulations kick in was aimed at being transparent with car buyers as the automaker targets producing only fully-electric cars by 2030. "It's really important for us to be a pioneer and a leader," Butani said. The EX90 SUV with a battery passport is due to start production soon at Volvo's plant in Charleston, South Carolina, and will be delivered to customers in Europe and North America from the second half of the year. Volvo owners can access a simplified version of the passport using a QR code on the inside of the driver's door. Butani said the passport would be gradually rolled out to all of Volvo's EVs. A more complete version of the passport will be passed to regulators. It will also include up-to-date information on the EV battery's state of health - vital for assessing used EV values - for 15 years and will Volvo cost around $10 per car, Circulor CEO Douglas Johnson-Poensgen told Reuters. Circulor's system traces battery materials from the mine to individual cars, piggybacking on suppliers' production systems to track materials throughout the supply chain and checking suppliers' monthly energy bills - and how much of their energy comes from renewable sources in order to calculate a total carbon footprint. If Volvo brings on board a supplier, Circulor will need to audit it to keep information current, Johnson-Poensgen said. The passport has also required changes in how Volvo traces parts through its manufacturing process to understand the origins of every part in every vehicle. "Car manufacturing has never been about which rock went into which component and which got connected to which car," Johnson-Poensgen said.

Volvo promises new direct-injected diesels, 8-speed auto

As a part of eliminating its dependence on Ford platforms and powertrains, Volvo has previously announced information about its Volvo Engine Architecture (VEA) and Scalable Platform Architecture (SPA), but now we're finally getting some details about what will power some of the Swedish automaker's next-generation products.
The biggest key to VEA on the diesel engines is a new technology Volvo calls i-ART. This system uses unique injectors at each cylinder capable of monitoring fuel pressure and adjusting accordingly to maximize fuel economy and performance and reduce emissions. Looking ahead, Volvo says its four-cylinder engines will be able to offer the power of a six-cylinder and eventually, mixed with some sort of electrification, will be able to rival the performance of a V8 and "turn V8s into dinosaurs."
More details about the new diesel injection technology is posted in the press release below.