公开(公告)号：WO2002084837A1

公开(公告)日：2002-10-24

申请号：PCT/US2002/010954

申请日：2002-04-09

Applicant: SIEMENS VDO AUTOMOTIVE CORPORATION

Inventor： VIERLING, Lou ,  MCCOY, John, C. ,  COBAS, Rafael ,  TRACY, Shawn, Lance ,  SULLIVAN, Richard, G.

IPC: H02H9/04

CPC classification number: H02H9/047 ,  F02P19/026 ,  H02H7/067

Abstract: A vehicle power supply management system includes a load absorbing device that absorbs an excess voltage from the vehicle battery. Under circumstances, such as at vehicle shutdown when an excess voltage spike occurs at the battery, the load absorbing device is selectively coupled to the battery to absorb the excess voltage and protect other electronic components on the vehicle. In one example, a comparator compares the voltage on the battery to a preselected threshold value. Whenever the battery voltage exceeds the threshold, the inventive arrangement selectively couples a load absorbing device, such as a plurality of glow plugs, heating elements within a vehicle seat or a window defrost unit, for example, to the vehicle battery to absorb the excess voltage.

Abstract translation: 车辆电源管理系统包括吸收来自车辆电池的过电压的负载吸收装置。 在这种情况下，例如在电池发生过电压尖峰时的车辆关闭时，负载吸收装置选择性地耦合到电池以吸收过量电压并保护车辆上的其它电子部件。 在一个示例中，比较器将电池上的电压与预选的阈值进行比较。 每当电池电压超过阈值时，本发明的装置将负载吸收装置（例如多个电热塞，车辆座椅内的加热元件或窗户除霜单元）选择性地耦合到车辆电池以吸收过电压 。