US 12,269,362 B2
Electric vehicle supply equipment, EVSE, for charging an electric vehicle
Gertjan Koolen, Eindhoven (NL)
Assigned to ABB E-mobility B.V., Delft (NL)
Filed by ABB E-mobility B.V., Delft (NL)
Filed on Jan. 20, 2022, as Appl. No. 17/580,056.
Application 17/580,056 is a continuation of application No. PCT/EP2020/070656, filed on Jul. 22, 2020.
Prior Publication US 2022/0305936 A1, Sep. 29, 2022
Int. Cl. B60L 53/62 (2019.01); B60L 53/64 (2019.01)
CPC B60L 53/62 (2019.02) [B60L 53/64 (2019.02)] 18 Claims
OG exemplary drawing
 
1. An electric vehicle supply equipment, EVSE, for charging an electric vehicle with up to a rated charge current, comprising:
a calibrated energy meter; and
a calibrated time meter,
wherein the calibrated energy meter is characterized by a minimum charge current (Imin) that is accurately measurable due to a calibration,
wherein the EVSE is configured, when charging the electric vehicle with a charge current during a charging session, for initially metering the charge current with the calibrated energy meter as long as the charge current is in a range between the rated charge current (Ir) and the minimum charge current (Imin); and
wherein when the metered charge current falls below the minimum charge current (Imin), for metering a charge time with the calibrated time meter until the charging session ends.