Speak EV - Electric Car Forums banner

Heating / 240v Inverter - how long does "Ready" mode last?

3048 Views 16 Replies 7 Participants Last post by  Shiny
I bought an ex-demo Peugeot e-Traveller Allure in October and intend to put in a modular kitchen / storage / fold out bed utilising the original rear two seats. I'd hoped to use the HVAC system to maintain the temperature whilst camping, and the integrated 120W inverter was an added bonus though I hope to run an small induction hob so a separate inverter and / or battery storage would be required.

Due to various medical emergencies / work / Christmas I haven't been able to spend as much time looking at this as I'd like to, but it appears that the car disconnects the HV battery when in park for a (relatively) short period of time - around 10 minutes. On two occasions it lasted longer, first time was 1 hr 30 minutes when I started at 91% SOC, in ECO mode, in park, with no A/C but charging a laptop on 240v. Second time was 45 minutes when started at 83% SOC, in normal mode, in park with heating set to 18 degrees C, and a load on 240v inverter - in both these occasions, I only stopped the timer as I had to leave the car and do other things. When I tried again below 60% SOC, it only lasted 9 minutes or so, and I've been unable to replicate the previous results so I'm unable to say with certainty under what circumstances the HVAC system will run longer.

I'm slightly disappointed that ECO mode completely stops all heating, whereas on previous EVs I've owned it would only limit the performance. The dashboard gauge for the HVAC only seems to show either full (but not in the red zone) or off (ECO zone) - altering the fan speed, temperatures, or A/C doesn't make a difference other than indicating on or off. Lastly, the range guessometer also seems to be very sensitive, particularly in the tests above using HVAC whilst not travelling - with the range dropping dramatically, even if I then went to drive very economically.

Anyone bought a PSA group van or MPV with camping in mind? I assume there will be similar issues for the Spacetourer, Zafira Life since they are so closely related - don't know if there may be any firmware updates to resolve this (and if they'd be distributed to all models across the group) or a workaround... I already considered remote pre-conditioning but its a limited length of time, and doesn't enable 240v inverter (so I don't know if the DC-DC converter would top up the 12v battery if I used a separate inverter).

Any thoughts or experiences would be appreciated.
See less See more
1 - 5 of 17 Posts
A brick on the brake pedal might not be great for "camping mode" :) I was looking at putting a switch in to turn off the front running lights, but would have to do something similar for brake lights in this scenario. Ideally there would be some way of mimicking the brake pedal (which I assume is just a trigger touching the pedal), and switching off those lights - all from one button that you importantly cannot forget to switch off again!

Will test the brick idea tonight though (y)
Out of curiosity (as I am looking at PSA vans for a camper) Did the brick work?
My personal body-brick i.e. foot on the brake pedal definitely stops the HV battery switching off. I'd read about just leaving the driver seatbelt attached and in park (I also tried neutral with handbrake on) but this didn't work.

So... what we need is something to make the brake sensor appear to be activated, but also to switch off the brake lights AND the DLR. I imagine this might be possible, but not easy...
  • Like
Reactions: 1
Yeah, this is definately doable but not easy. You will need 6 relays. Peugeot uses 4 wire brake pedal sensor, when 2 contacts close, other two open. So 2 relays to brake pedal and two for DLR as they are independet of each other and two for rear lights.
Great to hear it's achievable, but looks like I'd have a lot of learning to do as I wouldn't have the first idea of where to start. I can see this being useful for lots of people driving the PSA vans / MPV, especially if it's similar for the smaller van too.
Testing out how much energy might be used for heating van overnight, if kept in ready mode (HV battery engaged).

9°C outside, dual zone climate control set to 16°C and "auto soft" (thinking about sleeping). It used 1% in 30 minutes, so 16% across 8 hours or over 20 miles range. Don't know if this would be less in summer, or if it would run less when it hits optimal temperature. At 1000W per hour, even a 10A charger should allow for heating and very slow charge.

Trying it with the rear heating on as well with temperature set fully hot and fan around one third -but not sure where any heat comes out in the back.

*had both front heated seats on but don't know that makes much difference. After 45 minutes (half way through second test), the range hasn't dropped and still showing 130 miles at 97%.
See less See more
1 - 5 of 17 Posts