公开(公告)号：WO2014086381A1

公开(公告)日：2014-06-12

申请号：PCT/EP2012/004999

申请日：2012-12-04

Applicant: VOLVO TRUCK CORPORATION

Inventor： GRUNDBERG, Jan ,  PERSSON, Robert ,  HJELLE, Tommy

IPC: G01R27/18 ,  B60L3/00 ,  G01R31/02

CPC classification number: B60L3/0069 ,  G01R27/18 ,  G01R31/025

Abstract: A method for monitoring electrical isolation in an electrical system (1) of a vehicle comprising a high-voltage battery (2) having a positive battery pole (4) and a negative battery pole (5) where the two battery poles are separated from the vehicle chassis (8), where the vehicle comprises a control unit (10) adapted to obtain values that represent the electrical isolation between at least one battery pole and the chassis, comprising the steps of repeatedly obtaining a value that represents the isolation resistance, and saving the value that represents the isolation resistance in a classification table having a plurality of different classification groups. The advantage of the invention is that intermittent faults in a high-voltage system can be detected by using a regular, low speed measurement system.

Abstract translation: 一种用于监测车辆的电气系统（1）中的电气隔离的方法，包括具有正电池极（4）和负电池极（5）的高压电池（2），其中两个电池极与 车辆底盘（8），其中所述车辆包括适于获得表示至少一个电池极和所述底盘之间的电隔离的值的控制单元（10），包括重复获得表示所述隔离电阻的值的步骤，以及 在具有多个不同分类组的分类表中保存表示隔离电阻的值。 本发明的优点是可以通过使用常规的低速测量系统来检测高压系统中的间歇性故障。