The CVT gearbox a love hate relationship Our Cars Honest John

13 Июн 2014 | Author: | Комментарии к записи The CVT gearbox a love hate relationship Our Cars Honest John отключены
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Hybrids have come with a CVT gearbox the old ‘rubber band’ transmissions most people associate the DAF 55. They may sound old fashioned but make a lot of sense. Continuously transmissions are good for fuel as they allow the engine to run at the efficient revs, an ideal choice for a hybrid then.

and Lexus hybrids have used CVT gearboxes and the GS450h is no Obviously it’s a bit more than the old DAF 55 version but the theory is the same. I have to admit despite the advantages a CVT offers never been a big fan of them, in hybrids or conventional diesel and engines.

It’s not the performance, if anything CVT delivery surprisingly good compared to a conventional automatic, as there are no separate gears and so no of power as the gearbox shifts the gears. Indeed in the GS450h the CVT constant acceleration and a 0-62mph of 5.9 seconds. Even more is the acceleration from around which is all important when fast flowing traffic a short slip road.

It’s a strange sensation While you may be accelerating quickly, it feel like it from the wheel. The lack of gearchanges is counterintuitive when you’ve used to standard gearboxes and you to feel detached from going on.

It’s not a car that you back in your seat.

Energy Monitor screen you where the power is flowing

And there’s the noise. The whine accompanies acceleration is not pleasant and the car sound like it’s too hard. Even in the powerful it’s not that pleasant a while in smaller hybrids the Prius, it’s a bit like a machine getting to full

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There’s none of the grunt you get a diesel as the engine power high up the rev range at 6000rpm.

What the CVT does do is encourage you not to too hard. It’s a lot more a driving experience if you’re with your right Plant it to the floor and all you do is create awful whine while drops too.

Treat it a bit more finesse and it’s a far relaxing car to drive — and a economical one too.

So over the few months I’ve come to the CVT gearbox a lot more. I wouldn’t say a convert and choosing a hybrid have to mean having a CVT the likes of the Infiniti M35h (or Q70 as now known) and the BMW ActiveHybrid5 both use automatic gearboes. But the Lexus incredibly refined and relaxed and much of that is down to the

And talking of rival hybrids, soon be testing the GS450h the Infiniti Q70. Until the Lexus will be taking me to for the new year giving me a chance to put some miles on and see how it copes covering several thousand in a few days.

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