Patent ID: 11971443
Assignee: VOLVO CAR CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B  G  H  Y | IPC B  G  H

Claim 0:
1. An electric vehicle, comprising:
a non-isolated direct current to direct current (DC-DC) booster that boosts a first voltage of a charging station to a second voltage of a battery of the electric vehicle;
a first insulation monitoring device (IMD) comprising an active symmetrization circuit, a resistor, a switch that closes or opens to enable or disable the resistor, and a first contactor on a positive connection and a second contactor on a negative connection (126),
wherein the first IMD is communicatively coupled to a second IMD of the charging station through the first contactor and the second contactor, and receives data indicative of a fourth voltage on a negative side of insulation resistance of the charging station from the second IMD,
wherein the first IMD adjusts a third voltage on a negative side of insulation resistance of the electric vehicle to the fourth voltage by opening or closing the switch, and
wherein the first contactor and the second contactor close after the third voltage matches the fourth voltage.