In the realm of Charging Point Management Systems (CPMS), transparency and efficiency are essential for both Charging Point Operators (CPOs) and Mobility Service Providers (MSPs). To facilitate this transparency, the CPMS system automatically generates Charging Data Records (CDRs) at the conclusion of each charging session, sharing them with MSPs via the OCPI protocol in real-time. These CDRs provide crucial data for MSPs to estimate their monthly expenses and invoice their clients accurately.

However, in some instances, CDRs may contain unusual or suspicious values. For example, a charging session may record zero energy consumption because the electric vehicle (EV) driver decided not to charge, or it could show an unusually high value due to charger malfunctions. These peculiar CDRs can raise questions on the MSP side and result in additional administrative work for both CPOs and MSPs.

Introducing Session Thresholding:

To address this issue and prevent the automatic transmission of questionable CDRs to MSPs, we have implemented an optional feature called "Session Thresholding".

Configuring Thresholds:

To activate Session Thresholding, follow these steps:

  • Navigate to Tenant Configuration.
  • Select "Thresholding" and enable the feature.

By default, a standard configuration is in place, aligning with the standards set forth by E-violin, suitable for most use cases. However, you also have the flexibility to configure your own thresholds according to your specific requirements.

Configurable Parameters:

  • Max Charging Speed, based on the configured max charging speed on connector level. (On EVSE's in the Location tab).
  • Session Timing (Check if the session takes place in the future)
  • Maximum Session Age (Useful to configure, as most MSPs won't pay for sessions older than 90 days)
  • Minimum Time and parameters for kWh for AC and DC chargers separately

Suspicious Sessions:

When a charging session fails to meet the established thresholds, its status changes to "Suspicious." This indicates that the session is flagged for further inspection and awaits a final verdict. You will receive a notification in your Dashboard, and you can easily locate suspicious sessions in the session overview by clicking on 'Advanced Search' and selecting 'Suspicious Only.'

As long as a session retains the "Suspicious" status, no CDR will be generated or sent to the MSP.

Action on Suspicious Sessions:

When a session is deemed suspicious, you have two options:

  • Approve: Approving a suspicious session will retroactively send a CDR to the MSP, and it will be included in the CDR export for the month it was approved in.
  • Reject: Rejecting the Session means it will be permanently rejected, and you will not be able to create a CDR for this session.