Scheduled charging unreliable

[scal_air]

How does scheduled charging work? When you plug it in, you get a message from the app saying charging scheduled. Is there a message sent to the servers to send out a "wake up" message at the scheduled charging time, much like the app goes through the servers to wake your car up? If that is the case, I can understand how difficulty waking the car from the app can translate to scheduled charging not working ...

 

[borski]

How does scheduled charging work? When you plug it in, you get a message from the app saying charging scheduled. Is there a message sent to the servers to send out a "wake up" message at the scheduled charging time, much like the app goes through the servers to wake your car up? If that is the case, I can understand how difficulty waking the car from the app can translate to scheduled charging not working ...

Yes, that is precisely how it works today.

 

[levsha]

Yes, that is precisely how it works today.

Em you are saying that scheduled charging relies on a server side functionality? I'd call this significant design failure. Even very cheap SoCs can wake up on the integrated RTC timer these days.

 

[borski]

Em you are saying that scheduled charging relies on a server side functionality? I'd call this significant design failure. Even very cheap SoCs can wake up on the integrated RTC timer these days.

Sorry, I misread the post slightly. It doesn’t send a server-side wake-up to my knowledge, but I am not 100% certain.

I believe it works just fine with zero cell service, but that should be an easy test in a garage somewhere.

 

[scal_air]

Regardless, however the wakeup functions, if it's not functioning correctly, that could affect scheduled charging.

 

[levsha]

Regardless, however the wakeup functions, if it's not functioning correctly, that could affect scheduled charging.

If I understood properly scheduled charging usually works properly if at the time the car was connected to the EVSE it was ready to charge, and never works if that that time the EVSE was not allowing charge, but switches to allow to change at scheduled change time. If that is true then It doesn't look like the wakeup function doesn't work. It looks more the software issue: when the wakeup is only programmed when connected to the EVSE ready go charge.
If the car would program the wakeup at scheduled charge regardless of the EVSE connection or anything else (pure software change), and wake up on EVSE signals over the control wire that it is ready to charge (may require hardware changes if it is not possible with current wiring), then it should address all issues (including charging from solar panels)

 

[Sandvinsd]

I wouldn't say across the board, Tesla, Ford, GM, Hyundai all seem to have figured it out.

And Nissan. Never have a problem charging the Leaf.

 

[EVCar]

I'll add Nissan, Kia, Volvo, Polestar to that list. AFAIK pretty much every other EV except Lucid (and Porsche?) implements this basic EV function well.

Adding to this list: MB.

 

[davisron]

I am also having a problem with scheduled charging in that during the last three times I have charged it has only completed the charge one time. Twice it quit charging before reaching the charge limit. Set the limit at 80 and it stops at 77 or 78. Used to have problems not starting the scheduled charge, now it starts but stops for some reason early. I on the app the notification that charge is scheduled, the again that the charge is started, and once a notification that it completed. The two times it stopped early there was no notification of a problem. I have been using this charger for over a year with no problems so I don't suspect it is the issue. If anyone else has had this issue, did you find out what the problem was.
The car is a 2023 Touring, on update 2.4.10 and the charger is a Juicebox 40A. I am using the car to initiate the scheduled charge.

 

[pyle112]

I am also having a problem with scheduled charging in that during the last three times I have charged it has only completed the charge one time. Twice it quit charging before reaching the charge limit. Set the limit at 80 and it stops at 77 or 78. Used to have problems not starting the scheduled charge, now it starts but stops for some reason early. I on the app the notification that charge is scheduled, the again that the charge is started, and once a notification that it completed. The two times it stopped early there was no notification of a problem. I have been using this charger for over a year with no problems so I don't suspect it is the issue. If anyone else has had this issue, did you find out what the problem was.
The car is a 2023 Touring, on update 2.4.10 and the charger is a Juicebox 40A. I am using the car to initiate the scheduled charge.

Tough one. I switched out my juice box for a chargepoint when I heard that enelx, the company behind juice box was pulling out of the US market and not supporting their devices anymore. Not surprisingly, the weekend they made that announcement I had scheduled charging issues with my lucid and Volvo. In fact my Volvo charging was incredibly erratic, starting at random times and for a second or a few minutes before shutting down. Once I swapped out for the chargepoint I don't have those scheduling issues anymore. I still have to play with settings in order to get charger side scheduling working but that's expected since the lucid team is still trying to figure out scheduled charging (or they don't think it's necessary since time of use isn't in their major markets ¯\_(ツ)_/¯ )

 

[SCOOTERSD]

Just to add to the list of people having issues. I have been using the scheduled charging with no issues since it first became available. I am using the lucid cable directly plugging into a 30 amp service. I started having problems within the last week or two with the car telling me that scheduled charging was set and then failing to charge. After reading this thread I followed HYDBOBs recommendation exactly and tried it last night. No Joy - car did not charge last night so I guess I’m back to manually starting the charge during lower rate hours before my planned trip this week. Disappointing to say the least.

 

[borski]

Just to add to the list of people having issues. I have been using the scheduled charging with no issues since it first became available. I am using the lucid cable directly plugging into a 30 amp service. I started having problems within the last week or two with the car telling me that scheduled charging was set and then failing to charge. After reading this thread I followed HYDBOBs recommendation exactly and tried it last night. No Joy - car did not charge last night so I guess I’m back to manually starting the charge during lower rate hours before my planned trip this week. Disappointing to say the least.

That’s really really odd. I wish I knew what was going on, or why it works for me and others.

I can only surmise it’s a software bug that’ll get fixed soon.

 

[Adnillien]

Although I only use scheduled charging a few times a month, it has never failed for me.

 

[pyle112]

Tough one. I switched out my juice box for a chargepoint when I heard that enelx, the company behind juice box was pulling out of the US market and not supporting their devices anymore. Not surprisingly, the weekend they made that announcement I had scheduled charging issues with my lucid and Volvo. In fact my Volvo charging was incredibly erratic, starting at random times and for a second or a few minutes before shutting down. Once I swapped out for the chargepoint I don't have those scheduling issues anymore. I still have to play with settings in order to get charger side scheduling working but that's expected since the lucid team is still trying to figure out scheduled charging (or they don't think it's necessary since time of use isn't in their major markets ¯\_(ツ)_/¯ )

Update on chargepoint scheduled charging: What seems to work for me now is to have scheduled charging working on the lucid side, set for 5 minutes after when I want charging to start (for me it's 12:05am), have the chargepoint set to midnight. Then when I plug in the car in tell the chargepoint app to start charging. The lucid then registers an active charger and implements it's controls. Chargepoint then cuts off power at the scheduled time (for me it's 8am). This seems to work well and while it sometimes starts later than expected (probably has to do with the car waking itself up) its better than the rain dance I had to do with the juice box.

 

[Amster]

I'm one of the people who hasn't had a single problem with this, as long as I let the Lucid set the scheduled start time. Setting start/stop times with the charger was not working at all., so even though the charger has wifi capability, that is now turned off. Now that I'm familiar with how long the car will take to charge, I set the stop time by setting the percentage to charge to. Instead of the normal 80% I use at EA, I'll pull it down to 65%. So it starts at midnight and then stops on it's own around 7am. Kind of a backwards way to get a stop time, but it works. I'm hoping they'll add a stop time in a future update.

 

[inthewoods]

When car was plugged in and with Scheduled Charging enabled, car would immediately start charging and I'd stop it. Then, later in the day, I'd return to garage and charging starts again. This happened every time car was connected.

Car came back from being serviced a couple of days ago and charging now works flawlessly. I haven't yet received receipt so can't describe the remedy. I'm not sure, but think service agent told me that they reset the TCU. But don't quote me on that.

 

[pyle112]

Update on chargepoint scheduled charging: What seems to work for me now is to have scheduled charging working on the lucid side, set for 5 minutes after when I want charging to start (for me it's 12:05am), have the chargepoint set to midnight. Then when I plug in the car in tell the chargepoint app to start charging. The lucid then registers an active charger and implements it's controls. Chargepoint then cuts off power at the scheduled time (for me it's 8am). This seems to work well and while it sometimes starts later than expected (probably has to do with the car waking itself up) its better than the rain dance I had to do with the juice box.

Guess I spoke too soon. Last night car didn't start charging until I opened the app this morning. Sigh.
Maybe I should get an iPhone.

 

[scal_air]

When car was plugged in and with Scheduled Charging enabled, car would immediately start charging and I'd stop it. Then, later in the day, I'd return to garage and charging starts again. This happened every time car was connected.

Car came back from being serviced a couple of days ago and charging now works flawlessly. I haven't yet received receipt so can't describe the remedy. I'm not sure, but think service agent told me that they reset the TCU. But don't quote me on that.

If the TCU is an issue, your app will take a long time or even fail to wake up your car. It will also cause your scheduled charging not to work consistently. It does not affect your mobile key or key fob, so unless you use your app, you might not be aware of the problem. I had the TCU worked on a week ago, and the difference is quite noticeable.

 

[Sandvinsd]

Friday night. Plugged the Lucid into the charger. Lucid app says charging scheduled for 12:05 am. Wake up Saturday morning, not charged. Open up the app and manually start charge. This is not acceptable. I can’t predict when the car will decide to charge and when it won’t. I wish I could have something reliable like my Leaf is. Texted customer care to have them figure out why. No response from them except the auto reply as of 24 hours later.

 

[SCOOTERSD]

Update: I retried the HYDBOB reset and set a scheduled charge…..and it worked! I think the issue was the first time I did it was in the morning - outside the 12 hour window for scheduling charging and the car started charging immediately. Yesterday I did the reset in the afternoon and it worked as advertised last night.