May 19, 2012

Obama wants 54.5 miles per gallon by 2025

President Barack Obama wants US cars to be averaging 54.5 miles per gallon by 2025. He’s told all the major manufacturers about it and it seems they’re reasonably happy!

If this sounds like a dream; it isn’t. This is what the US President told the industry, and the industry is generally happy with it.Why is that? Because in the past, the very powerful motor industry lobby in the US has strongly resisted any tampering with what it does, and the great American population is fiercely defensive of their rights to drive gas-guzzling pick-ups and US politicians looking to get elected are all too aware that taking a strong stance on behalf of these motorists is a sure-fire vote winner.

So, like most things in modern day democracies, the actuality is slightly different from the PR.In reality, there will be extra credits for motor manufacturers producing hybrid cars or electric cars as part of the Obama Administration’s overall attempts to encourage new thinking around fuel economy.

Also, the politicians aren’t completely stupid, so there’ll be a partial exemption for pick-ups. Their size and weight make fuel efficiency a difficult nut to crack, and they’ll have to be able to produce better fuel efficiency figures eventually, but they’ll at least be exempt from the new scheme between 2017 and 2019. Manufacturers will also receive extra credit for incorporating hybrid vehicles into the pick-up design in the meantime.So there we are, Detroit is welcoming new green technology. Perhaps it has to? The manufacturers are all too aware of what happened previously when they were stuck with SUV-heavy suites of vehicles they couldn’t shift profitably when petrol prices rose quickly.With a concentration on fuel-efficient vehicles and with extra credits for new technologies, they clearly think they’re on to a winner… and they’re going green.

The future of hybrid car batteries

As things stand, the batteries used in hybrid vehicles are essentially the same as those used in conventionally powered cars. The main single difference is that the hybrid battery has more capacity and it saves power for longer travel.The batteries of hybrid cars work in conjunction with the petrol engine and the electric motor. Hybrid cars use regenerative brake technology to recharge the battery when the driver applies brake.

At the moment, hybrid car batteries last anywhere between around eight and ten years. But that looks likely to change. As hybrid battery technology advances, different kinds of hybrid battery look likely to emerge. These may include hydrogen fuel cells, but before that happens it looks like lithium batteries will become more prevalent.

Lithium batteries are mainly used at the moment as disposable batteries in everyday powered portable objects, but the desire is for hybrid cars to travel further in electric-only mode, and that calls for lithium-ion battery technology to improve.

The likelihood is that hybrids will become more of a cross between electric-only cars and the current form of hybrid, where there is also a home plug-in rechargeable option.Lithium batteries are also more environmentally friendly as they don’t use nickel or cadmium. Although plug-in hybrids necessitate larger batteries, their basic design varies little from other cars.

So tomorrow’s best family car will almost certainly be a hybrid. What will change is the mix in the use of fuel and electrical power, with the latter becoming increasingly significant as battery technology and, therefore, power and storage thereof improves.