TheLostPetrol
Posts: 75
Joined: Thu Jul 13, 2017 8:19 am
Delivery Date: 21 Feb 2018
Leaf Number: 307105
Location: Greater Chicagoland

Re: Charging at top of hill?

Thu Aug 08, 2019 3:23 pm

webeleafowners wrote:
Mon Aug 05, 2019 9:16 pm
SageBrush wrote:
Mon Aug 05, 2019 9:09 pm
webeleafowners wrote:
Mon Aug 05, 2019 9:00 pm


How does the car know the EVSE capability/output.
.
They chat. That is a large part of what an EVSE is all about.
So does one have to be plugged in to set the timer?
Last I heard, if an end timer is set when the car gets plugged in (and the car's not prohibited from beginning to charge by a start time), the car determines the EVSE's voltage and power by beginning to charge. Knowing the power available, if the car determines that it doesn't have to start charging yet, it immediately stops charging and waits until a time calculated from that power. It presumes that when it later does start charging, the same power will be available, which is a reasonable assumption given that it will have been continuously plugged in while waiting.
2018-02-21 Used 2015 LEAF SV Mfd 2014-07 In-serv 2015-02-27
Date mi AHr SOH Hx QC L1/L2
2018-02-21 26,938 60.22 97.0 90.7 1 988
2018-07-01 31,601 58.05 93.5 87.0 11 1223
2018-10-01 35,428 55.63 89.6 82.1 16 1440
2019-08-01 45,923 56.20 90.5 83.3 23 1968

SageBrush
Posts: 4588
Joined: Sun Mar 06, 2011 2:28 am
Delivery Date: 13 Feb 2017
Location: NM

Re: Charging at top of hill?

Thu Aug 08, 2019 3:29 pm

TheLostPetrol wrote:
Thu Aug 08, 2019 3:23 pm
webeleafowners wrote:
Mon Aug 05, 2019 9:16 pm
SageBrush wrote:
Mon Aug 05, 2019 9:09 pm
.
They chat. That is a large part of what an EVSE is all about.
So does one have to be plugged in to set the timer?
Last I heard, if an end timer is set when the car gets plugged in (and the car's not prohibited from beginning to charge by a start time), the car determines the EVSE's voltage and power by beginning to charge. Knowing the power available, if the car determines that it doesn't have to start charging yet, it immediately stops charging and waits until a time calculated from that power. It presumes that when it later does start charging, the same power will be available, which is a reasonable assumption given that it will have been continuously plugged in while waiting.
It is an elegant solution for people who start their car use days at about the same time
2013 LEAF 'S' Model with QC & rear-view camera
Bought off-lease Jan 2017 from N. California
Two years in Colorado, now in NM
03/2018: 58 Ahr, 28k miles
11/2018: 56.16 Ahr, 30k miles
-----
2018 Tesla Model 3 LR, Delivered 6/2018

webeleafowners
Posts: 800
Joined: Mon Oct 05, 2015 5:37 pm
Delivery Date: 06 Oct 2015
Location: Okanagan Valley British Columbia

Re: Charging at top of hill?

Thu Aug 08, 2019 6:09 pm

TheLostPetrol wrote:
Thu Aug 08, 2019 3:23 pm
webeleafowners wrote:
Mon Aug 05, 2019 9:16 pm
SageBrush wrote:
Mon Aug 05, 2019 9:09 pm
.
They chat. That is a large part of what an EVSE is all about.
So does one have to be plugged in to set the timer?
Last I heard, if an end timer is set when the car gets plugged in (and the car's not prohibited from beginning to charge by a start time), the car determines the EVSE's voltage and power by beginning to charge. Knowing the power available, if the car determines that it doesn't have to start charging yet, it immediately stops charging and waits until a time calculated from that power. It presumes that when it later does start charging, the same power will be available, which is a reasonable assumption given that it will have been continuously plugged in while waiting.
Great explanation. Thanks.
2015 Smart Electric Drive convertible.
2016 Nissan Leaf SV 30KWh
EV only Family...well except for the big diesel motorhome. :shock:

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