Confused by Preconditioning

All Jaguar I-Pace related discussions
Goshdarnit
Posts: 1150
Joined: Tue Oct 23, 2018 3:55 pm
Location: UK

Confused by Preconditioning

Post by Goshdarnit » Tue Jun 11, 2019 3:16 pm

I just can't figure out if this battery preconditioning is actuallyt happening, so a few days ago I decided to set a departure time for the next day, and then regularly check via the API if the EV_BATTERY-PRECONDTIONING_STATUS key state ever switched to "ON". It didn't. So the question has to be, is the API simply not making use of the key, or is the car not actually preconditioning the battery?

Has anyone else had a look at this?
I-Pace First Edition, Corris Grey, Oyster interior, 22” diamond cut alloys with carbon inserts.
IMC: S19A_19.07.2-312706 Telematics: 14.2

Control your iPace with Siri voice commands
Check out my YouTube I-Pace Channel


marumhok
Posts: 23
Joined: Thu Apr 12, 2018 1:13 pm
Location: Nederland

Re: Confused by Preconditioning

Post by marumhok » Tue Jun 11, 2019 3:26 pm

I think the best way to set preconditioning is to set it via the car itself (it's a pain in the ass). For me this works every time, setting it via the app is not always working for me.
wake me up, when November ends! (I-pace expected beginning of December)


Goshdarnit
Posts: 1150
Joined: Tue Oct 23, 2018 3:55 pm
Location: UK

Re: Confused by Preconditioning

Post by Goshdarnit » Tue Jun 11, 2019 3:29 pm

marumhok wrote:
Tue Jun 11, 2019 3:26 pm
I think the best way to set preconditioning is to set it via the car itself (it's a pain in the ass). For me this works every time, setting it via the app is not always working for me.
I never set it using the app. The question isn’t about how the setting is made, but whether the car is actually doing anything with it. As I said, the API showed “OFF” for battery preconditioning right up to and beyond the set departure time.
I-Pace First Edition, Corris Grey, Oyster interior, 22” diamond cut alloys with carbon inserts.
IMC: S19A_19.07.2-312706 Telematics: 14.2

Control your iPace with Siri voice commands
Check out my YouTube I-Pace Channel


sciencegeek
Posts: 194
Joined: Fri Nov 02, 2018 8:14 pm
Location: California

Re: Confused by Preconditioning

Post by sciencegeek » Tue Jun 11, 2019 3:35 pm

Is the car plugged in when you do this?


Pacesetter
Posts: 184
Joined: Sat Nov 03, 2018 10:55 pm
Location: United Kingdom

Re: Confused by Preconditioning

Post by Pacesetter » Tue Jun 11, 2019 4:35 pm

The question has been posted before, and I have been convinced for some time that the battery preconditioning is at best minimal, judging by the kwh/100 miles figure I see when setting off in the morning after "preconditioning" compared to when I don't precondition.
First Edition, Corris Grey


User avatar
McRat
Posts: 294
Joined: Wed Dec 12, 2018 12:31 am
Location: United States

Re: Confused by Preconditioning

Post by McRat » Tue Jun 11, 2019 4:42 pm

Pre-conditioning greatly increases your 100% SOC regen.
Sometimes it turns itself off, and I don't understand why yet.
It will pre-condtion whether or not it's plugged in.
You will hear it running.

It certainly needs some polish.
2019 I-Pace FE
2019 & 2017 Chevrolet Volts
24.2 kW self-installed 480v 3-ph solar array


Goshdarnit
Posts: 1150
Joined: Tue Oct 23, 2018 3:55 pm
Location: UK

Re: Confused by Preconditioning

Post by Goshdarnit » Tue Jun 11, 2019 4:51 pm

sciencegeek wrote:
Tue Jun 11, 2019 3:35 pm
Is the car plugged in when you do this?
Yes, plugged in with departure time set and charger running constantly (timed charging was switched off).

Everything was set up as it should be. Car had reached 100% SOC. But I have to say the consumption wasn't noticeably different and regular polling of the API to get the battery preconditioning flag's state returned a value of "OFF" every time.
I-Pace First Edition, Corris Grey, Oyster interior, 22” diamond cut alloys with carbon inserts.
IMC: S19A_19.07.2-312706 Telematics: 14.2

Control your iPace with Siri voice commands
Check out my YouTube I-Pace Channel


sciencegeek
Posts: 194
Joined: Fri Nov 02, 2018 8:14 pm
Location: California

Re: Confused by Preconditioning

Post by sciencegeek » Tue Jun 11, 2019 5:02 pm

Is there a temperature range where battery preconditioning is not active?


Pacesetter
Posts: 184
Joined: Sat Nov 03, 2018 10:55 pm
Location: United Kingdom

Re: Confused by Preconditioning

Post by Pacesetter » Tue Jun 11, 2019 5:18 pm

McRat wrote:
Tue Jun 11, 2019 4:42 pm
Pre-conditioning greatly increases your 100% SOC regen.
Sometimes it turns itself off, and I don't understand why yet.
It will pre-condtion whether or not it's plugged in.
You will hear it running.

It certainly needs some polish.
You can certainly hear the fan running as it preconditions the cabin, but i have yet to be convinced it either heats or cools the battery.
First Edition, Corris Grey


User avatar
McRat
Posts: 294
Joined: Wed Dec 12, 2018 12:31 am
Location: United States

Re: Confused by Preconditioning

Post by McRat » Tue Jun 11, 2019 5:21 pm

Pacesetter wrote:
Tue Jun 11, 2019 5:18 pm
McRat wrote:
Tue Jun 11, 2019 4:42 pm
Pre-conditioning greatly increases your 100% SOC regen.
Sometimes it turns itself off, and I don't understand why yet.
It will pre-condtion whether or not it's plugged in.
You will hear it running.

It certainly needs some polish.
You can certainly hear the fan running as it preconditions the cabin, but i have yet to be convinced it either heats or cools the battery.
When it was cold out, the difference in regen was huge. The needle was well past the word CHARGE after precondition, but barely under Top Dead Center if I did not in 32°F (0°C) weather.
2019 I-Pace FE
2019 & 2017 Chevrolet Volts
24.2 kW self-installed 480v 3-ph solar array


Post Reply

Return to “Main Jaguar I-Pace chat”