首页> 外国专利> SYSTEM AND METHOD FOR MANAGING SYSTEM MEMORY INTEGRITY IN SUSPENDED ELECTRONIC CONTROL UNITS

SYSTEM AND METHOD FOR MANAGING SYSTEM MEMORY INTEGRITY IN SUSPENDED ELECTRONIC CONTROL UNITS

机译:悬挂式电子控制单元中管理系统内存完整性的系统和方法

摘要

A system for controlling a subsystem of a vehicle includes a memory, a first processor, and a second processor. The first processor allocates a portion of the memory upon booting to perform operations to control the subsystem and generates an indication when an amount of memory used from the allocated portion of the memory is greater than or equal to a threshold. The first processor monitors times when the vehicle is turned on and off and determines a time period during which the vehicle remains turned off. After the vehicle is turned off, the first processor enters a power save mode. The memory and the second processor continue to receive power. During the time period, on receiving the indication, the second processor wakes up the first processor, which performs a reboot operation, reallocates the memory, and reenters the power save mode. The memory continues to receive power.
机译:用于控制车辆的子系统的系统包括存储器,第一处理器和第二处理器。第一处理器在引导时分配存储器的一部分以执行控制子系统的操作,并在从存储器的分配部分使用的存储器量大于或等于阈值时生成指示。第一处理器监视车辆开启和关闭的时间,并确定车辆保持关闭的时间段。车辆关闭后,第一个处理器进入省电模式。内存和第二个处理器继续供电。在该时间段内,第二处理器在接收到该指示后唤醒第一处理器,该第一处理器执行重新引导操作,重新分配存储器并重新进入省电模式。内存继续通电。

著录项

  • 公开/公告号US2019188039A1

    专利类型

  • 公开/公告日2019-06-20

    原文格式PDF

  • 申请/专利权人 GM GLOBAL TECHNOLOGY OPERATIONS LLC;

    申请/专利号US201715845254

  • 发明设计人 SCOTT A. RUSH;VADIM DRALUK;

    申请日2017-12-18

  • 分类号G06F9/50;G06F12/06;G06F15/167;G06F1/32;

  • 国家 US

  • 入库时间 2022-08-21 12:09:53

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