Toyota Rav4 EV Forum

It is currently Wed Jun 03, 2020 4:51 am

All times are UTC [ DST ]




Post new topic Reply to topic  [ 471 posts ]  Go to page Previous  1 ... 43, 44, 45, 46, 47, 48  Next
Author Message
 Post subject: Re: ALL POSTS about Charge Timer Failure
PostPosted: Sun Mar 15, 2015 6:00 pm 
Offline

Joined: Mon May 27, 2013 10:02 pm
Posts: 139
Location: San Francisco, CA
Are you sure it was pulling power the entire time? Pulling power around the set departure time is normal behavior. Even if pre-climate is not selected, the RAV turns itself back on just before the set departure time and draws a small amount of power to do a final top-off and run thermal management on the battery to prepare for departure (see "Pre-driving warm up", page 43 in the manual). Ours tends to fully disengage from the EVSE around 10 minutes after the departure time.

_________________
2012 RAV4 EV, Classic Metallic Silver | Leviton EVB40 | 3.5kW PV


Top
 Profile  
 
 Post subject: Re: ALL POSTS about Charge Timer Failure
PostPosted: Sun Mar 15, 2015 6:33 pm 
Offline

Joined: Thu Dec 27, 2012 10:55 pm
Posts: 606
eschatfische wrote:
Are you sure it was pulling power the entire time?


You are right, it wasn't
It started at 6:30 and ended at 6:50.
I checked with my power usage graphic

Quote:
Pulling power around the set departure time is normal behavior. Even if pre-climate is not selected, the RAV turns itself back on just before the set departure time and draws a small amount of power to do a final top-off and run thermal management on the battery to prepare for departure (see "Pre-driving warm up", page 43 in the manual). Ours tends to fully disengage from the EVSE around 10 minutes after the departure time.


So pure coincedence that I spotted it.
Thanks for clearing that up for me.

_________________
OpenEvse wifi controlled L1/L2 charging
2 x GEM EV, 2019 Chevy Bolt
past ev's: 3 yr leaf 30k, 3yr rav4ev 34k, 3yr rav4ev 25k


Top
 Profile  
 
 Post subject: Re: ALL POSTS about Charge Timer Failure- continued charging
PostPosted: Mon Mar 16, 2015 8:19 am 
Offline

Joined: Sat Mar 30, 2013 9:20 am
Posts: 694
Location: Seal Beach, CA
fromport wrote:
This is how it charged in real life:

3/12 start 9:47pm 40 miles range left.
3/13 stop 2:12am

3/14 start 2:13am > 50% in battery
3/14 stop 4:52am

3/15 start 2:56am > 50% in battery
3/15 stop 5:09am
As you're probably already aware, the simplest way around the car's timer nonsense is to use RavCharge. ;) You can choose to start the charge whenever you want, and also use the new early charge protection (ECP) feature to make sure the car doesn't start your charge before you want it to.
Quote:
When I walked into the garage this morning at 7am,
I saw on my display it was still pulling 3amps from the wall
This low-power event always happens from 20 minutes before your chosen departure time to 7 minutes after. I generally try to avoid it by setting the car's departure time to much later than I actually leave (letting RavCharge start my charge) and unplugging before it has a chance to kick in.

_________________
ImageRavCharge.com | 2012 Classic Silver | 2011 Leaf | Clipper Creek CS-60 | 40 amp openEVSE | 3.84kw PV


Top
 Profile  
 
 Post subject: Re: ALL POSTS about Charge Timer Failure
PostPosted: Mon Mar 16, 2015 6:36 pm 
Offline

Joined: Mon May 27, 2013 10:02 pm
Posts: 139
Location: San Francisco, CA
Quote:
You can choose to start the charge whenever you want, and also use the new early charge protection (ECP) feature to make sure the car doesn't start your charge before you want it to.
Is RAVCharge now able to actually stop a charge remotely? That'd be a very useful thing, and I didn't think that could be done.
Quote:
I generally try to avoid it
I don't know, of all of the half-baked features of Entune and the charge timer, having the car warm up (or cool) the battery back immediately before departure actually seems to be one of the better ones, for both pack longevity and range.

_________________
2012 RAV4 EV, Classic Metallic Silver | Leviton EVB40 | 3.5kW PV


Top
 Profile  
 
 Post subject: Re: ALL POSTS about Charge Timer Failure
PostPosted: Mon Mar 16, 2015 6:51 pm 
Offline

Joined: Sat Mar 30, 2013 9:20 am
Posts: 694
Location: Seal Beach, CA
Quote:
Is RAVCharge now able to actually stop a charge remotely? That'd be a very useful thing, and I didn't think that could be done.
No, that sort of thing can't be done unless you have a "smart" EVSE. ECP makes sure charges don't happen early by sending commands to Entune to push back your departure timer depending on your SOC and EVSE current setting.
Quote:
having the car warm up (or cool) the battery back immediately before departure actually seems to be one of the better ones, for both pack longevity and range.
Depending on the climate it might make sense, but here in SoCal it's generally just a waste of non-super-off-peak power. And since it's virtually impossible to set the timer to when you actually want to leave and have the charge happen when you want it to, the purpose is defeated anyway.

_________________
ImageRavCharge.com | 2012 Classic Silver | 2011 Leaf | Clipper Creek CS-60 | 40 amp openEVSE | 3.84kw PV


Top
 Profile  
 
 Post subject: Re: ALL POSTS about Charge Timer Failure- continued charging
PostPosted: Mon Mar 16, 2015 6:54 pm 
Offline

Joined: Thu Dec 27, 2012 10:55 pm
Posts: 606
fooljoe wrote:
As you're probably already aware, the simplest way around the car's timer nonsense is to use ravcharge ;)


I find the monthly costs of $3.25 too high.

Quote:
This low-power event always happens from 20 minutes before your chosen departure time to 7 minutes after. I generally try to avoid it by setting the car's departure time to much later than I actually leave (letting RavCharge start my charge) and unplugging before it has a chance to kick in.


Thanks for the info. much appreciated

_________________
OpenEvse wifi controlled L1/L2 charging
2 x GEM EV, 2019 Chevy Bolt
past ev's: 3 yr leaf 30k, 3yr rav4ev 34k, 3yr rav4ev 25k


Top
 Profile  
 
 Post subject: Re: ALL POSTS about Charge Timer Failure- continued charging
PostPosted: Mon Mar 16, 2015 8:43 pm 
Offline

Joined: Mon Feb 24, 2014 8:51 pm
Posts: 631
fromport wrote:
basic setup:
openevse set to 240V/24 amps.

This is how it charged in real life:

3/12 start 9:47pm 40 miles range left.
3/13 stop 2:12am

3/14 start 2:13am > 50% in battery
3/14 stop 4:52am

3/15 start 2:56am > 50% in battery
3/15 stop 5:09am
The car would have told you it was starting too early if you Turn off, Plug in, Immediately check the info screen.

3/12 adjust the departure out 3 hour (very easy) Would have started 12:47 ended 5:12
The rest worked fine. Yes a PITN at times but soon you will learn when to check and adjust and when to plug and go.


Top
 Profile  
 
 Post subject: Re: ALL POSTS about Charge Timer Failure
PostPosted: Mon Mar 16, 2015 9:04 pm 
Offline

Joined: Mon May 27, 2013 10:02 pm
Posts: 139
Location: San Francisco, CA
Quote:
Depending on the climate it might make sense, but here in SoCal it's generally just a waste of non-super-off-peak power. And since it's virtually impossible to set the timer to when you actually want to leave and have the charge happen when you want it to, the purpose is defeated anyway.
Gotcha. In our case, since we're in PG&E territory where off-peak is 11pm-7am, the car's out of the garage before 7am, the built-in timer never charges before 11pm with our 40A EVSE (even with the departure time set early), and where it gets chilly in the morning, this feature makes a whole lot of sense.

_________________
2012 RAV4 EV, Classic Metallic Silver | Leviton EVB40 | 3.5kW PV


Top
 Profile  
 
 Post subject: Re: ALL POSTS about Charge Timer Failure
PostPosted: Mon Mar 16, 2015 9:45 pm 
Offline

Joined: Sat Mar 30, 2013 9:20 am
Posts: 694
Location: Seal Beach, CA
eschatfische wrote:
Gotcha. In our case, since we're in PG&E territory where off-peak is 11pm-7am, the car's out of the garage before 7am, the built-in timer never charges before 11pm with our 40A EVSE (even with the departure time set early), and where it gets chilly in the morning, this feature makes a whole lot of sense.
Yeah, with that long window you're mostly good, although the car will still start early with less than 2% SOC for a normal charge or 21% SOC for an extended charge, so if you ever get that low try the trick smkettner mentioned. In fromport's case with a 24A EVSE it'll be much harder to keep charges in a predictable window, as the car's predicted time to charge is inversely proportional to the EVSE's amperage. Smkettner's trick is effectively what RavCharge's ECP does automatically.

_________________
ImageRavCharge.com | 2012 Classic Silver | 2011 Leaf | Clipper Creek CS-60 | 40 amp openEVSE | 3.84kw PV


Top
 Profile  
 
 Post subject: Re: ALL POSTS about Charge Timer Failure
PostPosted: Mon Mar 16, 2015 10:46 pm 
Offline

Joined: Wed Nov 14, 2012 9:50 pm
Posts: 4115
Location: San Diego
We will have a simple outlet on our future JAMP JR charge cable that will allow a timer to not only modulate the charge, but also wake up the car.

We do this by switching the proximity pin.

The timer we use has:

1) Override feature

2) User adjustable Daylight Savings Time (particularly useful with utilities that don't follow modern DST dates)

3) Battery back up (it will keep time for MONTHS without power)

_________________
Tony Williams
QC Charge
1780-104 La Costa Meadows Drive
San Marcos, California 92078 USA
tony@QCcharge.com
www.QCcharge.com
Twitter: QCPower
1-844-EV-PARTS
1-844-387-2787
1-760-798-0342 Office
Hours M-F, 9-5 Pacific Time


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 471 posts ]  Go to page Previous  1 ... 43, 44, 45, 46, 47, 48  Next

All times are UTC [ DST ]


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
© Toyota Rav4 EV Forum - part of the MyElectricCarForums.com Group