Northern Sweden just isn’t a spot to go to calmly, no matter season. Hit it within the temperate summer season months, and also you’ll be confronted with clouds of mosquitoes so thick they darken the skies. The bugs are gone within the winter months, however then it’s the dearth of solar that retains issues dim. Dim and legendarily chilly.
That chilly has turned the Lapland area of Sweden into the last word playground for prototype car testing. The frigid temps put the best-engineered automobiles to the check, whereas the snow-covered roads problem the traction of the most effective drivetrains.
When that’s not slippery sufficient, engineers head to one of many hundreds of frozen lakes, which is strictly the place I acquired my first go behind the wheel of a pre-production Mercedes-Benz CLA. When this new electrical CLA enters manufacturing later this yr, it’ll mark the start of a brand new era of EVs for the corporate.
Mercedes-Benz already gives a wealth of electrical choices, from the standard EQB SUV to the positively opulent Mercedes-Maybach EQS SUV. The upcoming CLA sedan received’t make these machines out of date. Nonetheless, it does present that the most effective is but to come back, delivering vital enhancements that ship longer vary, sooner charging, and higher efficiency in future Benz EVs. The tech seen right here will unfold to a brand new era of sedans, SUVs, plus one thing considerably larger.
New Battery Beginnings
It begins with an improved battery pack. Mercedes isn’t utterly rebooting the design that presently powers the EQE and EQS. Nonetheless, revised elements like graphite anodes with silicon oxides plus tweaked chemistry enhance vitality density by 20 % whereas additionally lowering reliance on problematic (and dear) supplies like cobalt. The result’s a battery that’s, pound-for-pound, extra highly effective, and eco-friendly.
That battery is charged by a brand new electrical structure constructed round a silicon carbide (SiC) inverter. This know-how allows sooner, extra environment friendly charging. It’s an 800-volt structure with a most charging charge of 320 kW. That’s plenty of juice, sufficient so as to add 186 miles of vary to the CLA in simply 10 minutes.
The CLA is estimated to do some 466 miles on a single cost of its 85 kWh battery pack. Mercedes’ present electrical sedan, the EQE, goes 308 miles on a cost of its 96-kWh battery pack. Far more vary from a a lot smaller battery is nice information for anybody affected by vary nervousness.
Different Tech Tweaks
It’s not simply the battery enabling that type of vary. Mercedes engineers have additionally tweaked their electrical motor design, placing a two-speed transmission on the rear axle of the CLA in order that it delivers higher acceleration at increased speeds and higher effectivity total.
There’s additionally a brand new braking system that extra easily and effectively depends on the electrical motors to gradual the automotive down, solely calling on the bodily brakes when wanted. So, when it’s time to cease accelerating and begin slowing down, the automotive can higher flip its momentum into vitality.
And at last, Mercedes has a radically improved warmth pump. This new module can pull thermal vitality from the warmth of the electrical motors, battery pack, and ambient air. Mercedes engineers advised me that this new system just isn’t solely twice as environment friendly as the warmth pumps within the firm’s present EVs, but it surely’s capable of heat their vehicles’ cabins twice as rapidly.
On Ice
This brings us again to Sweden and me sliding a pre-production CLA sideways round a frozen lake. I used to be toasty and heat, sure, with each seat and steering wheel heaters firing, however I used to be additionally grinning ear-to-ear. The 2-motor setup on the CLA meant I had all 4 wheels biting for grip on the lake’s floor, throwing up a giant cloud of snow and ice behind me.
The all-wheel-drive CLA makes 107 horsepower from its entrance motor and 268 from the rear, which means round 375 horsepower complete. That was a lot sufficient for it to speed up strongly even on the slick floor, and due to that two-speed transmission, it was nonetheless pulling arduous to 100 mph once I began operating out of room to speed up.
I additionally acquired to drive an earlier pre-production model of the corporate’s electrical GLC SUV. Although bigger in each dimension, the GLC shares most of the identical enhancements, together with the braking system.
Typically when driving EVs or hybrids, it may be troublesome to cease the automotive exactly. The preliminary press of the brake pedal is imprecise and unresponsive because the automotive depends on the recuperative energy of the electrical motors. Then, whenever you push your foot just a little farther, the automotive lurches to a cease when the bodily brakes come into motion.
This new system handles all that within the background, calculating and recalculating the best way to finest ship the deceleration you’re requesting. The larger GLC braked easily to a cease on extremely tough and uneven surfaces.
The GLC made fast work of accelerating, too, even up slick inclines on a mountain move that Mercedes had reserved for our use. When the snow acquired deep, a fast faucet on the touchscreen lifted the GLC’s air suspension by an inch, giving loads of clearance to deal with some completely rutted-out sections.
A Luxurious Van?
The CLA and GLC prototypes had been spectacular, but it surely was a fast run round a closed course in one thing else that basically blew my thoughts. It’s a next-generation van platform that guarantees to be in contrast to something we’ve seen earlier than.
I’ve pushed the Sprinter and different Mercedes vans prior to now, and whereas they’re good when in comparison with different massive industrial vans, they provide little of the refinement present in Mercedes’ luxurious vehicles. With this new electrical van platform, known as VAN.EA, that every one modifications.
The van I drove was extremely easy, even when charging over tough surfaces. It was quiet, too, regardless of having nearly no inside trim.
Why is that this vital? As a result of Mercedes has one thing particular in retailer. Dr. Andreas Zygan, head of growth at Mercedes-Benz Vans, advised me how car upfitters in China are making a killing by taking Mercedes’ present industrial vans and turning them into limousines.
“Any person else buys it from us, turns it into an expensive model, possibly with completely different seats, a unique inside, or a giant display, or one thing like that. After which they promote it at a a lot increased worth to our clients,” he mentioned.
Pay sufficient, and you’ll even get a Chinese language-made luxurious van festooned with Maybach logos, the image usually reserved for Mercedes’ most luxurious vehicles. That’s regardless of Mercedes having completely nothing to do with them. This, Dr. Zygan mentioned, is proof that there’s curiosity in a higher-end, luxurious van, which may very well be constructed on this new electrical platform.
I requested if which may imply Mercedes would construct an official Maybach van sometime.
“No remark,” he mentioned.
Watch this house for extra, however whether or not it’s a van, SUV, or the corporate’s extra conventional luxurious sedans, Mercedes-Benz’s revised EV know-how appears to be like set to lift the bar in vary and refinement. Will or not it’s sufficient to woo EV-skeptical shoppers? Mercedes is actually nonetheless bullish on electrical vehicles, but it surely’s hedging its bets to some extent. Each the CLA and the next-generation vans will probably be obtainable as hybrids, too.
This text was written by Tim Stevens and was first seen on Value.com
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