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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 demos autonomous self-parking car concept

A number of companies are developing autonomous vehicle technology - Google and Audi come to mind - but Volvo is applying its work in the area to a particular usage case: parking. The Swedish automaker has the technology up and running in a concept vehicle, which it says can be dropped off at the curb by its owner and left to its own devices to enter and navigate a car park, then find and park in an available parking spot. Volvo says the process can even be reversed when the owner is ready to go, with the car leaving the car park on its own to meet its key-holder again at the curb.
The vehicle first interacts with Vehicle 2 Infrastructure technology, which places transmitters in the road itself to inform the car (and driver) if the self-parking service is available. The driver then hops out, activates the Self Parking function on his or her smartphone and then leaves the car to do its work. The car uses sensors, all seemingly hidden from view (an advancement of its own in this field), to autonomously navigate the car park, which includes interacting and adjusting to other cars, people and objects.
The technology used here builds off of Volvo's other work in autonomous vehicle research, namely the Safe Road Trains for the Environment (SARTRE) project in which the company managed to create a train of four cars autonomously following a lead truck at speeds up 56 miles per hour. Volvo says the first application of its autonomous research in a production vehicle will happen at the end of 2014 with some level of autonomous steering available in the next-generation XC90. See the system in action by watching the video below.

Volvo V40 Cross Country gets the all-wheel drive it deserves

Want a rugged Volvo wagon? Gothenburg has two kinds to offer: there's the XC crossovers on the one hand and ruggedized wagons on the other. As we reported last month from the unveiling of the new XC90 in Sweden, Volvo plans on offering more Cross Country wagons in the future. But in the meantime, it has upgraded the existing V40 Cross Country with some key enhancements - not the least of which is the long-awaited addition of all-wheel drive.
Powertrain upgrades for Volvo's smallest soft-roader include the new T5 engine (a 1.7-liter turbo four producing 245 horsepower), an eight-speed automatic transmission and all-wheel drive. The new powertrain is not only more capable, but also more environmentally friendly than the old T5 it replaces.
The enhanced V40 Cross Country launches in Europe mid-fall before being rolled out in other markets in the following months, but unfortunately the United States is not among them as the V40 is not offered Stateside in any configuration, which is a shame.