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Regenerative braking?

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It's called marketing, relying on public ignorance. Remember, Audi is VW, the emission cheats, crime against consumers is nothing new for them. The EU has heavily fined them three times for price fixing, first €4 millions, then when repeated three years later, €31 millions, and in the latest case involving their Scania truck company, a massive €880 millions.

 

If you get a chance sometime, beg a Leaf test drive. You'll discover the normal gentle braking of regen on lifting off, and by flicking back the drive puck to B mode, you'll find how strongly that brakes. It's too strong for holding the car at 30 mph on a 10% downhill, slowing it down, just balancing it at 30 on a 15% downhill.

 

Here's further proof that regen does the normal braking. On my new Leaf there's the choice of using e-pedal instead of normal two pedal driving. In that mode lifting off a little does the usual regen braking, lifting off further applies the brakes as well.

 

If that was similar to what it did usually as Audi claim, why would it now be provided as a choice?

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it names Nisan and Jaguar.. which suggest that the information given is true.

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it names Nisan and Jaguar.. which suggest that the information given is true.

 

I saw the Jaguar mention but didn't see any mention of Nissan.

 

Still rubbish though, I've gone through all the claims and they are often false. They say pressing the brake pedal on all other cars operates the brakes, that only theirs uses regen for braking at first.

 

Not true. Mine when the brake pedal is gently applied just uses the motor regen braking force and displays the amount of regeneration on the Plus-Minus current consumption dial. As the pressure is increased the regenerated amount rises until the brakes are engaged too. Then it's clear the braking is on all four wheels, not just the front wheels by the motor.

 

It may be theirs is more efficient, I wouldn't know. But I do know how mine works.

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Edited by flecc

I saw the Jaguar mention but didn't see any mention of Nissan.

 

Still rubbish though, I've gone through all the claims and they are often false. They say pressing the brake pedal on all other cars operates the brakes, that only theirs uses regen for braking at first.

 

Not true. Mine when the brake pedal is gently applies just uses the motor regen braking force and displays the amount of regeneration on the Plus-Minus current consumption dial. As the pressure is increased the regenerated amount rises until the brakes are engaged too. Then it's clear the braking is on all four wheels, not just the front wheels by the motor.

 

It may be theirs is more efficient, I wouldn't know. But I do know how mine works.

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I wonder what it will be like on ice?

Or is there a lever for that as well?

I wonder what it will be like on ice?

Or is there a lever for that as well?

 

Not quite a lever.

 

Mine has the following gizmos:

 

ABS - Anti-lock Braking System.

 

ESP - Electronic Stability Program.

 

ICC - Intelligent Chassis Control.

 

Whether any of it is any use on ice is yet to be discovered.

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The proof is that owners report the brake pads almost never need renewal, since with normal driving they are only used for emergency braking.

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Doesn't this mean a greater chance of needing new discs since the pads are not clearing the surface rust which seems to happen on discs? I've been told by my dealer that my rear discs need replacing because I haven't been braking hard enough!

Not quite a lever.

 

Mine has the following gizmos:

 

ABS - Anti-lock Braking System.

 

ESP - Electronic Stability Program.

 

ICC - Intelligent Chassis Control.

 

Whether any of it is any use on ice is yet to be discovered.

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I am baiting my breath.

Please keep us posted,

Mike

Doesn't this mean a greater chance of needing new discs since the pads are not clearing the surface rust which seems to happen on discs? I've been told by my dealer that my rear discs need replacing because I haven't been braking hard enough!

 

Unlikely in my experience. So long as the pads do some rubbing the discs stay clean. On the Leaf, even when driving mainly on motor braking, that's not precise so the brakes are still used to stop the car at the desired point so still get that regular light use.

 

I have seen enough disc rusting to ruin pads and create more disc wear on cars that have long outdoor parked up periods out of use. I never suffered it myself on garaged rarely used cars though. That includes a Fiat Tipo at a time when I almost only cycled and only got the car out of the garage four or five times in each of the last seven years of it's ten plus years with me. It was doing about 400 miles each year!

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  • 4 weeks later...
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Not sure where we got with this but I just saw an eBike "hack" (I was too tired to see what the darn thing was called) but it was supposed to drive your back wheel VIA the rear tyre! It has regeneration too.

 

Nice idea but can you imagine the cost in tyres!?

Not sure where we got with this but I just saw an eBike "hack" (I was too tired to see what the darn thing was called) but it was supposed to drive your back wheel VIA the rear tyre! It has regeneration too.

 

Nice idea but can you imagine the cost in tyres!?

 

There have been many friction drive bike motors with ridged or abrasive rollers rubbing on the tyre treads.

 

One of the earliest was the American Zap motor kit, but there were many others and there's at least one being crowd funded at present.

 

Sinclair got involved too with three tries, two of them under the Zeta model name, one for front wheel, and one for rear wheel.

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  • Author

I saw the dratted thing on YouTube again last night (I was in bed and not supposed to be on the computer) so I've forgotten what it's called.

 

Is it just me or do these things seem attractive in theory but in practise the cost in tyre wear (and the maintenance of changing them) defeat the object? It's not like having a little bottle dynamo (I kinda miss those) for your lights.

 

This latest iteration seems rather like the Zeta you've linked here Flecc (and thank you for that).

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