{
"$type": "site.standard.document",
"description": "A safety circuit () for a power system () of a vehicle (), the safety circuit comprising: a hazardous voltage interlock loop (HVIL) circuit () configured to disconnect a high-voltage energy source () from a high-voltage system (), the HVIL-circuit comprising a contactor () and a HVIL control unit…",
"path": "/patents/1313543",
"publishedAt": "2022-03-24T00:00:00.000Z",
"site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
"tags": [
"B60L3/0046",
"VOLVO TRUCK CORPORATION"
],
"textContent": "A safety circuit () for a power system () of a vehicle (), the safety circuit comprising: a hazardous voltage interlock loop (HVIL) circuit () configured to disconnect a high-voltage energy source () from a high-voltage system (), the HVIL-circuit comprising a contactor () and a HVIL control unit (); a current meter () arranged to measure a current; a fuse (); a switching circuit () controlling the contactor of the HVIL-circuit; and a safety circuit control unit () connected to the current meter and to the switching circuit for controlling the contactor, wherein the safety circuit control unit is configured to: if the HVIL control unit provides a control signal to the switching circuit to open the contactor, and if the current measurement exceeds a first threshold current value, control the switching circuit to delay the opening of the contactor by a controllable time period.",
"title": "SAFETY CIRCUIT FOR A POWER SYSTEM OF A VEHICLE AND METHOD FOR CONTROLLING THE SAFETY CIRCUIT"
}