kevin1956murray wrote:My understanding is that the pilot signal (frequency) informs the car what the maximum charging rate can be. The pilot signal comes from the station. On single cord Chargepoint stations my car goes right back to 3kW after the pause, each and every time. There is something about dual cord Chargepoint stations that results in 1.1kW charging after the pause. It is disappointing to me that a Chargepoint presenter would blame the low rate on the car, since I have provided Chargepoint with many traces showing the recovery to 3kW on their older single cord stations.
Not to worry, I'll continue working the problem with my acquaintance directly, and just sent him an email with some questions about the logic implementation in those dual-port ChargePoint EVSEs
which are fed by a single (limited) circuit.
Another confusing factor: in the situation we have, the car only gets 1.1kW vs. its previous 3.0kW. Say, 3kW is about 230vac at the car's usual 13A draw, so the 1.1kW is about 4.8A at that voltage. That's a strange number, especially if the EVSE
is being fed by a single 40A circuit. Kevin, any chance you can access the circuit breaker panel for that EVSE
to see what the amperage is on that breaker?
If anyone in the SF Bay Area has experienced this, please let us know as my acquaintance has offered to take their diagnostic instrument and check the station (and car's) performance directly.
Has anyone else other than jray3 seen this specific problem at a ChargePoint
Last night while attending a concert far from home I charged at a ChargePoint
dual-port station with no one at the other plug, but, darn it, my car didn't do its 'timeout' so i couldn't duplicate the problem.
Regarding the Clipper Creek Update
kevin1956murray wrote:To answer the questions just above: My MiEV is 2012, and as far as I can tell there are no open recalls on it. (Or it could be that the website I used just looks for open "safety" recalls by VIN.
Not to worry, and it most probably has nothing to do with the problem you're seeing. The next time you're by a Mitsubishi dealer ask them to check your recall status. I just found the Mitsubishi "Customer Satisfaction Campaign SC-13-001 dated February 2013 regarding Clipper Creek EVSE
: " This incompatibility is caused by a software mis-communication between the i-MiEV EV-ECU and the charger..."
The fix is to update the EV-ECU with the latest programming. Free.