Lflouie
Senior Member
I own a 2021 Audi A4 mild-hybrid that is quite interesting. If you're not aware of the term, it describes a battery "assist" system going thru a conventional ICE drive line. It can assist motive power, but can not provide its own propulsion to independently power the car.Overseas you see a lot of cars going mild hybrid, gas engine with tiny electric alternator amd starter and a small battery. It adds like 30 lbs to the car, and slightly reduces emissions and gas consumption, and let’s automakers look like they’re being progressive.
The battery is about the size of a shoebox, located in the rear of the car. It can provide assist 2 ways, it can power the accessory drive functions like the electric steering, air-conditioning, etc.....or it can add assisted power through the starter/generator (which is always engaged to the flywheel) and uses that motor as an all wheel electric drive assist through the transmission and drive system. It is not a plug in and recharges battery while driving.
It is virtually seamless and adds torque or removes parasitic load from the accessories on the engine when cruising.
The benefits are 42 mpg on the hwy from a 2 liter turbo 4 cyl with 0-60 times of 4.8 sec ( note: my wife's supercharged v6 S4 0-60 time is 4.7 sec). It also yields real world around town 27 mpg....in a 3900 lb car.
I think this is a cool transitional technology where legacy car makers can have both fuel economy and performance while leveraging their investments in traditional ICE engine auto designs.
Longer term it appears that all of the major US, japanese and European auto mfgrs are hedging their sole EV strategy with hydrogen cell technology. They have all announced huge investments in this parallel technology. Whether it is viable or practical is yet to be determined, but the false promises of a global EV powered transportation in the next 25 yrs just isn't likely nor environmentally sound.
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