Regenerative Braking: beginners explanation, please

[Zebster]

That makes sense up to a point, the slight kick/surge that is felt when changing to Snow setting is strange, you would think that Snow setting would give you the most relaxed throttle response for any given throttle position, the level 1 regen default would be to stop locking the wheels on a slippery surface when releasing the throttle.
All the other modes are default level 3 and not much difference ( if any ) in a perceived difference in response when scrolling through from one to the other on a steady throttle . The only obvious slight differences is either side of Snow mode.
You would also imagine that any regen setting points on any of the curves would only be applicable when the power goes into minus figures, on plus power settings they should be non applicable?
Its not an argument , I'm just trying to understand why it does what it does.

How are you selecting 'snow' mode?

 

[Anon70]

Supplementary question-1,2,or 3 for ‘de-rusting’ brakes ?

Go fast in reverse and use the brakes, as regen does not apply going backwards. Reverse parking helps with this.

 

[OriginalBigAl]

How are you selecting 'snow' mode?

Trade in the Cyberster and get a MG4. thought this was in the General category.

 

[GranTurismoEra]

MG4 lighter too . But its not as good looking as its sibling.

Snow mode addition would be a lower powered 4 wheel drive? Dont think theres any plan for that. It drives fine in Norway according to one driver

 

[Vader]

Back to the original question. For people new to EVs, regen, as stated in previous posts, is like engine braking. Think of the levels as what gear you are in.... well sort of. Level 1 is like taking your foot off in say 5th gear - you slow down slowly. Level 2 is like say 3rd gear, you slow down quicker. Level 3 is like 1st or 2nd gear, you slow down quickly. 'A' tries to choose the best level to be in automatically. 1 on the freeway, 3 in town etc. One pedal is my favourite because you control the level. Let off the accelerator a bit, and it is like level 1. Take you foot off the pedal and it is like level 3. You can coast by adjusting your foot so that you have no regen or acceleration. You control the amount.

As said above, when you apply the brake, the first thing that happens is that the regen is ramped up till it reaches maximum, upon when the mechanical brake starts helping. My daughter prefers this mode and swears black and blue that she gets better range. For the daily grind in traffic, one pedal is the only way to go. Makes traffic bearable. Of course you can enable the Pilot mode and do (nearly) nothing.

If you want to hypermile, you need to keep a constant speed, avoiding accelerating or braking. Acceleration wastes energy - not all the energy used goes to increasing the speed - and regen doesn't recoup all the energy of you slowing down. Technically coasting once at speed is the best, but in town this is nearly impossible, so one pedal is the go. This is where the adaptive could shine, automatically giving you near one pedal in town and coasting (level 1) on the highway.

For me, I leave it in one pedal and play the accelerator game. Makes driving in traffic more fun.

 

[decrep]

Vader, we are in total agreement!

I just love how smoooth you can get the drive in OPD, especially pulling up at the lights.
There's no way I can get it as smooth using the brake pedal.

 

[Zebster]

Back to the original question. For people new to EVs, regen, as stated in previous posts, is like engine braking. Think of the levels as what gear you are in.... well sort of. Level 1 is like taking your foot off in say 5th gear - you slow down slowly. Level 2 is like say 3rd gear, you slow down quicker. Level 3 is like 1st or 2nd gear, you slow down quickly. 'A' tries to choose the best level to be in automatically. 1 on the freeway, 3 in town etc. One pedal is my favourite because you control the level. Let off the accelerator a bit, and it is like level 1. Take you foot off the pedal and it is like level 3. You can coast by adjusting your foot so that you have no regen or acceleration. You control the amount.

As said above, when you apply the brake, the first thing that happens is that the regen is ramped up till it reaches maximum, upon when the mechanical brake starts helping. My daughter prefers this mode and swears black and blue that she gets better range. For the daily grind in traffic, one pedal is the only way to go. Makes traffic bearable. Of course you can enable the Pilot mode and do (nearly) nothing.

If you want to hypermile, you need to keep a constant speed, avoiding accelerating or braking. Acceleration wastes energy - not all the energy used goes to increasing the speed - and regen doesn't recoup all the energy of you slowing down. Technically coasting once at speed is the best, but in town this is nearly impossible, so one pedal is the go. This is where the adaptive could shine, automatically giving you near one pedal in town and coasting (level 1) on the highway.

For me, I leave it in one pedal and play the accelerator game. Makes driving in traffic more fun.

Which of those regen modes are you describing as 'one pedal'? I use the unmentioned 'S' mode and - to me, at least - that seems to be the closest thing to one pedal driving, certainly the closest to the iPedal mode in my EV6 that I've got used to over three years.

Does anyone know if regen is suspended whilst under cruise control?

Has anyone checked out the brake light operation when braking under regen?

 

[CyberNewbie]

Which of those regen modes are you describing as 'one pedal'? I use the unmentioned 'S' mode and - to me, at least - that seems to be the closest thing to one pedal driving, certainly the closest to the iPedal mode in my EV6 that I've got used to over three years.

Does anyone know if regen is suspended whilst under cruise control?

Has anyone checked out the brake light operation when braking under regen?

I wondered about the brake light, I am assuming it goes on as you are slowing the car down and need to warn drivers behind.

 

[decrep]

I can only speak for our MG4

OPD is OPD, it's separately selected in the infotainment screen under "driving"
If the car doesn't come to a complete stop when you take your foot off, it's not OPD.

And yes brake lights come on once deceleration hits a preset level, similar I guess to when an ICE car first puts it's brakes on.

 

[MG Clive]

Has anyone checked out the brake light operation when braking under regen?

I wondered about the brake light, I am assuming it goes on as you are slowing the car down and need to warn drivers behind.

I would think it's similar to the MG4, and this is what happens with the MG4.

 

[Jackolino]

On the Cyberster, the brake lights do not illuminate in recuperation stages 1 and 2; they only illuminate in stage 3. I am not sure about the foot brake, but I suspect that the brake lights only come on when a certain deceleration has been reached.

 

[Vader]

I use the unmentioned 'S' mode and - to me, at least - that seems to be the closest thing to one pedal driving, certainly the closest to the iPedal mode in my EV6 that I've got used to over three years

'S'is Single Pedal Mode, just another way of saying one pedal If you try to change the Regen with the paddle when you are in S, it says you cannot change in single pedal mode.

There is a law/regulation, at least in the EU, that says decelerating more than a certain amount should activate the brake light. A quick Google says that above 1.3m/s^2 the brake must come on. Between 0.7 and 1.3 it "may" come on. 1.3m/s^2 is actually not that much, however the light Regen of levels 1 and 2 seem to be below this. Level 3, at least in full Regen is over so the brake lights come on.