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48V electric supercharger (MHEV) Turbocharger: Single twin-scroll turbocharger, or two twin-scroll turbochargers, or single twin-scroll turbocharger with additional 48 V electric supercharger (inline-6); ceramic ball bearings: Fuel system: Petrol: 200 bar solenoid direct injection, centrally-mounted; Diesel: 1,800 bar common rail injection ...
A 48 V system can provide more power, improve energy recuperation, [7] and allow up to an 85% decrease in cable mass. [10]12-volt systems can provide only 3.5 kilowatts, while a 48 V power could achieve 15 to 20 kW or even 50 kW. 48 volts is below the level that is considered safe in dry conditions without special protective measures. [11]
In 2010, Volvo started to experiment with electrically assisted turbochargers. The result was unveiled in 2014, a 450hp 2.0L High Performance Drive-E Powertrain Concept engine, which used a 48-volt electrical system for the electric booster. The engine has three turbos, with the electric "turbo" driving the exhaust turbines of the twin-turbo. [7]
The M256 uses a 48V electrical system to operate a BorgWarner electric supercharger, [6] which can spin up to 70,000 rpm to reduce turbo lag. [7] In the S 500's G variant engine, an integrated starter alternator also provides up to 16 kW (22 PS) and 250 N⋅m (184 lb⋅ft) of boost, and replaces the drive belts by managing the water pump and ...
They use dual overhead camshafts with 4 valves per cylinder, feature twin-scroll turbochargers, [2] and have particulate filters installed. M264 engines also have intake variable valve timing and a 48V system that powers the electric auxiliary compressor and integrated starter alternator.
The Tiggo 8 Plus is available with a 1.6-litre turbo engine developing 145 kW (194 hp; 197 PS) and 290 N⋅m (214 lb⋅ft) mated to a 7-speed DCT gearbox and a mild hybrid 1.5-litre turbo engine with 48V of electric power developing a combined 156 hp (116 kW; 158 PS) and 230 N⋅m (170 lb⋅ft) mated to a CVT gearbox. [10]
The C 300 model is powered by a 2.0-litre M254 petrol engine rated 190 kW (255 hp; 258 PS). The M254 is equipped with a twin-scroll "segmented" turbocharger featuring an overboost function that allows it to produce an additional 26 kW for up to 30 seconds, as well as a 48V electric supercharger that provides assist at low engine speeds. [5]
The GLE 450 has a 48V electric system with an integrated starter motor. The system powers the air-conditioner, in-car electronics and the electronically driven turbocharger. [54] The GLE 450 features a refined Active Body Control system, that does away with mechanical roll bars, notably enhancing performance. [54] Other engine options are also ...
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