Patent ID: 9236731
Filing Date: 2016-01-12
CPC Classification: B60L,G01K,H02H,H02J,Y02T

Claim Text:
1. A method for limiting a switch-on current of a circuit configured to receive current from a battery, the method comprising: connecting an electrical load to the battery during a switch-on operation; pre-charging the electrical load via a pre-charging resistor during the switch-on operation; regularly recording operating data including at least one variable that influences a temperature of the pre-charging resistor with a monitoring unit; estimating the temperature of the pre-charging resistor based on the recorded operating data; generating a warning signal in response to the estimated temperature of the pre-charging resistor exceeding a first temperature threshold value; and preventing pre-charging of the electrical load via the pre-charging resistor in response to the estimated temperature of the pre-charging resistor exceeding a second temperature threshold value that is greater than the first temperature threshold value.