Yahoo Autos Volvo adds 48V hybrid system to a bunch of 2022 models
In 2019, Volvo announced an updated powertrain fitted with a 48-volt mild hybrid system. The integrated starter-generator and regenerative brake-by-wire refilling a small battery could increase fuel economy by up to 15% in real-world driving. There are three layouts, dubbed B4, B5, and B6 that the Swedish automaker's already been rolling out globally. Next year two of them, the B5 and B6, come to the U.S. for the first time under the 2022 Volvo S60, S90, V90 XC, and XC60. The EPA's fuel economy site shows all of those models making small fuel economy gains, too.
The B4 and B5 powertrains contain both gas and diesel mild-hybrids, the B6 is gas-only. All of the gas options (Volvo doesn't offer diesels here) will start with a 2.0-liter four-cylinder, the B5 adding a turbocharger, the B6 adding a turbocharger and a supercharger.
Per the EPA, the front-wheel drive 2021 Volvo S60 returns 23 miles per gallon in the city, 34 on the highway, and 27 combined. The new 2022 Volvo S60 B5 betters that with 26 city, 35 highway, and 30 combined. The 2022 S60 B5 AWD bests the 2021 model with the both versions of the non-hybrid 2.0-liter engine by one to three miles per gallon in nearly every category. The only model that does better, for obvious reasons, is the 2021 S60 AWD PHEV, which has been renamed S60 T8 AWD Recharge.
