Regenerative braking concern - Jaguar I-Pace EV400 Forum
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post #1 of 11 (permalink) Old 06-10-2019, 01:03 AM Thread Starter
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Regenerative braking concern

We have had our ipace for two weeks and like and appreciate 1 pedal driving with aggressive regeneration. However we noticed one potentially dangerous issue. If the battery is fully topped up, the regen braking seems to be disabled which means 1 pedal driving would be ineffective. This requires immediate recalibration of stopping distances. You will have to 1) use your brakes and 2) lift your foot off the accelerator to give enough space to stop whereas with an infilled battery, the regen braking would kick in

This could be a very serious safety issue if one is used to 1 pedal driving. Anyone else have issues with this?
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post #2 of 11 (permalink) Old 06-10-2019, 01:14 AM
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I personally have adapted to the behavior; I make a mental note when I start off at 100% SoC. But I don't usually charge to 100%. Today e.g. I charged to 78% from 30%.
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post #3 of 11 (permalink) Old 06-10-2019, 02:05 AM
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Nope. You get used to it. There is a green line that appears, in the instrument panel that shows how much regen energy can be stored when the state of charge is a above a certain percentage. You can use that to gauge the amount of slow down when lifting your foot from the accelerator and use the brake pedal instead.
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post #4 of 11 (permalink) Old 06-10-2019, 08:55 AM
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My wife was so concerned by the difference in regeneration when the battery is fully charged that she asked me to set the system to Low. Caught me by surprise too the first time I experienced the phenomenon until I caught on what was happening. I quickly got used to it and enjoy it because I know my battery is full.

I try to keep the battery at 80% or below anyway and the side effect is a consistent regen feel.

Last edited by 2761; 06-10-2019 at 08:58 AM.
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post #5 of 11 (permalink) Old 06-10-2019, 09:31 AM
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If you set the Pre-Condition feature the regen is a lot more powerful in the morning than if you don't.
Like BruinToo said, there is a thin green radial line at between 10-12 o'clock on the Power Meter, on the regen side that shows you the max regen. The closer that line is to the top, the less regen works.

It would be nice to be able to charge the car to 90% so it always has max regen, but for some odd reason that function was removed from the Retail version. It only appeared on the prototypes.
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post #6 of 11 (permalink) Old 06-10-2019, 12:37 PM
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At home I use a Chargepoint level 2 system and I set a timed charge based on an 8% per hour rate. For example, if the battery is at 50% I set the system for 4 hours which puts the battery at 82%.
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post #7 of 11 (permalink) Old 01-18-2020, 09:01 PM
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Is there a way to set the car to only charge to a certain percentage? I saw a picture of the app with that ability on an old post, but the version of the app I have doesn't give me that option. Obviously, I could do it by computing the amount of time to set, but that's a bit kludgy if I drive different amounts each day and have to figure out what timing to set.
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post #8 of 11 (permalink) Old 01-18-2020, 09:15 PM
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I think you can set the max charge percentage in the WattCat app.
I see the feature but have never used it, being in my car for only 3 weeks, out of the 4, I have owned it- everything is still new and way above my tech skills.
My concern with max regen is the idiots that drive to close/tailgate-
I think the brake lights should come on when the car is set to max regen.
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post #9 of 11 (permalink) Old 01-18-2020, 09:48 PM
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Quote:
Originally Posted by ALinSATx View Post
I think the brake lights should come on when the car is set to max regen.
They do
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post #10 of 11 (permalink) Old 01-18-2020, 11:46 PM
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Quote:
Originally Posted by Dantrium View Post
They do
Thank you for that- I have been waiting to get rear ended
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