My apologies for using the word ‘nonsense’, that is not a nice word I realize.Jelle v/d Meer wrote: ↑Fri Feb 01, 2019 8:54 amWell reality is that so far on all public 22kW chargers and I have tried multiple including the one at work very often that I am getting 3-4% instead of the expected 8-9% charge. At home I tracked it both on App (showing 7-11%) and in Excel over a long period and I am getting to 5.5kW average all the way to 100% so till 85% it was running slighly above 7kW and that is on a 1x 35A home connection.MartijnEV wrote: ↑Thu Jan 31, 2019 8:20 pm
Nonsense: there is no risk in being connected to 3-phases versus 1-phase, and the Jaguar engineers did not make any mistake in the AC charging setup. This is why: there is no way the i-Pace hardware or software could detect whether it is connected to 1 or 3 phases. Physically only phase 1 is connected (see the socket in the car inlet: the bottom two holes - those are for phase 2 and phase 3 on three-phase cars - don't have contact bushings at all, so 'sensing' presence of phase 2 and 3 is impossible). In addition, the charging protocol of Mode 3 charging (see IEC 61851-1) makes no distinction between 1 or 3 phases either. The protocol (=communication between car and charger) only controls the Amps. So there is no way the software could 'detect' whether it is connected to 1 or 3-phase. So there really should be no difference between being connected to a 1-phase 32A or a 3-phase 32A charger: in both cases you should get the same charging power/speed.
If you do see a difference: it is 100% the charger, not the i-Pace, that makes the difference.
What could be the case is that the 3-phase charger that you experienced slower charging at, as compared to the other 1-phase charger, is that the 3-phase charger could be equipped with load balancing/smart charging software, which limits the available amps if multiple cars are charging at the same charger cluster (e.g. charging stations with two sockets, charging plaza's etc.), and/or if the building that the charger is sharing the power grid connection with (e.g. residential home), is consuming a significant amount of power, that the charger Amps are limited by the smart charging software.
So call it nonsense and I hope you are right but so far my experience is that there is certainly some truth to it!!!
I just wanted to make clear that there is really no difference at all for the i-Pace between being connected to a 1 phase or a 3 phase supply. The i-Pace simply can not detect by any means whether a second and third phase are present or not. Not physically and not in the Mode 3 protocol between car and charger.
What you are experiencing is for 100% sure caused by the charger. If you don’t get 32A on a ‘22kW’ public charger, it is simply not supplying 32A but limited to a lower amperage. This is why: In the Netherlands Many ‘22kW’ chargers are listed in apps etc. as ‘22kW’ chargers, which in fact stands for: 3-phase 32A. The problem is that this in many cases refers to the network connection of the charger unit. And as most of the public ‘22kW’ chargers have two charging sockets, this network connection has to be shared between the two sockets. In The Netherlands a usual network connection is 3x35A. And if these chargers are not load balanced, and many still aren’t, this means that in reality those chargers do not supply 32A per socket, but 16A per socket so the total (incl some spare Amps for the contoller, RFID receiver, modem etc) will not exceed the 35A of the network connection. If a charger IS load balanced, and newer models are most of the times, it is possible to supply the full 32A to a single socket (of the two), only if the other socket is not in use. If a second EV is connected to the other socket however, the load balancing controller will reduce the power to socket A, so socket B will get a reasonable amount of power as well. Depending of how many Amps both EV’s are consuming the load balancer will distribute the total available 32A over both sockets as fair as possible. Result: less than 7kW to a single phase charging EV such as the i-Pace.
Your home charger does not have all the issues described above, except load balancing between the house power consumption and the charger power consumption, so the total will not exceed the 25A/35A/40A of your 3x25A or 1x35A/40A house grid connection. Effectively this means that at home you will be able to charge to the full available 32A (7kW) on your 1x35A/40A home power supply during the night when dryer, dish washer etc are finished with their tasks.
Hope this clarifies.