{
  "$type": "site.standard.document",
  "description": "An insulation resistance detection system (1) for an electric vehicle (300) is used to detect a positive insulation resistance (RP) between a positive electrode (200+) of a battery (200) of the electric vehicle (300) and an equipment grounding point (GND), and detect a negative insulation…",
  "path": "/patents/1406354",
  "publishedAt": "2024-04-10T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60L3/0069",
    "DELTA ELECTRONICS INC [TW]"
  ],
  "textContent": "An insulation resistance detection system (1) for an electric vehicle (300) is used to detect a positive insulation resistance (RP) between a positive electrode (200+) of a battery (200) of the electric vehicle (300) and an equipment grounding point (GND), and detect a negative insulation resistance (RN) between a negative electrode (200-) of the battery (200) and the equipment grounding point (GND). The insulation resistance detection system (1) includes a negative detection circuit (10), a positive detection circuit (20), and a control unit (30). The control unit (30) controls the negative detection circuit (10) to be charged to generate a first capacitor voltage (VC1), and controls the positive detection circuit (20) to be charged to generate a second capacitor voltage (VC2). The control unit (30) determines whether the negative insulation resistance (RN) is abnormal according to the first capacitor voltage (VC1) and a battery voltage (VPN) of the battery (200), and determines whether the positive insulation resistance (RP) is abnormal according to the second capacitor voltage (VC2) and the battery voltage (VPN).",
  "title": "INSULATION RESISTANCE DETECTION SYSTEM FOR ELECTRIC VEHICLE AND INSULATION RESISTANCE DETECTION METHOD THEREOF"
}