EcoG-io / iso15118

Implementation of the ISO 15118 Communication Protocol (-2, -20, -8)
Apache License 2.0
165 stars 90 forks source link

How to pause the charging process EVSE side? #303

Open lovalova1991 opened 1 year ago

lovalova1991 commented 1 year ago

As far as i understand from the ISO15118-2 normative there's no written way to suspend the charging process from the EVSE side. Setting power to zero is not going to work because the car during the charging loop is expecting to receive energy.

Does somebody know how it's possible to implement this behaviour in the project?

Thanks.

tropxy commented 1 year ago

Hi Daniele,

You are right, in -2 there is no way to formally force a pause of the communication. I think there are only two options..

  1. is to do a renegotiation of the schedule and advertise a Schedule in the ChargeParameterDiscoveryRes that contains a long period with 0 W or close to it…that may trigger the Pause in the EV
  2. second is the one you mentioned and force the min the EVSE can do (possibly 0 W) in the charge loop.

Neither of the above methods is a guarantee that the EV will request a Pause, but at least you can influence the amount of power the EV will consume and by knowing more or less the standby power of the EV, you can keep the OBC on and yet avoid charging the EV. Unfortantelly, I dont think there is another way to do something that resembles pausing…

Best regards,

— [image: signature_1470162048]

André Duarte

CTO at Switch https://switch-ev.com/

LinkedIn https://www.linkedin.com/in/andrefilipef1/

The Ministry, 79-81 Borough Road, London SE1 1DN

On Tue, 26 Sept 2023 at 20:29, Daniele Lovato @.***> wrote:

As far as i understand from the ISO15118-2 normative there's no written way to suspend the charging process from the EVSE side. Setting power to zero is not going to work because the car during the charging loop is expecting to receive energy.

Does somebody know how it's possible to implement this behaviour in the project?

Thanks.

— Reply to this email directly, view it on GitHub https://github.com/SwitchEV/iso15118/issues/303, or unsubscribe https://github.com/notifications/unsubscribe-auth/AC7PVFU2H4DQFLWEGAIEDW3X4MUJZANCNFSM6AAAAAA5IHG64U . You are receiving this because you are subscribed to this thread.Message ID: @.***>