Method and apparatus for monitoring battery charging

Abstract

method of detecting a charging anomaly during a charging operation of a traction battery 3. A reference time period TRF is determined for a state of charge SOC of the traction battery 3 to change from a first state of charge to a second state of charge in dependence on a supply of electrical energy to the traction battery 3. A time threshold TTH1 is determined in dependence on the reference time period TRF. A state of charge SOC of the traction battery 3 is monitored and a time period TMS measured for the state of charge SOC of the traction battery 3 to change from the first state of charge SOC to the second state of charge SOC during the 10 charging operation. A charging anomaly is detected in dependence on a determination that the measured time period TMS for the state of charge of the traction battery 3 to change from the first state of charge SOC to the second state of charge SOC is greater than the time threshold TTH1.

Images