公开(公告)号：US20140149801A1

公开(公告)日：2014-05-29

申请号：US13686361

申请日：2012-11-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： SHENGBING JIANG ,  YILU ZHANG ,  MUTASIM A. SALMAN

IPC: G06F11/20

CPC classification number: G06F11/2005 ,  G06F11/0739 ,  G06F11/076 ,  G06F11/079 ,  H04L12/40 ,  H04L2012/40215 ,  H04L2012/40273

Abstract: A controller area network (CAN) has a plurality of CAN elements including a communication bus and controllers. A method for monitoring the CAN includes identifying each of the controllers as one of an active controller and an inactive controller. A fault-active controller isolation process is executed to detect and isolate presence of a fault-active controller. A fault isolation process can be executed to detect and isolate presence of one of a wire open fault, a wire short fault and a controller fault when one of the controllers is identified as an inactive controller. Presence of a fault associated with a persistent bus disturbance in the CAN is detected when a bus error count is greater than a predetermined threshold continuously for a predetermined period of time.

Abstract translation: 控制器局域网（CAN）具有包括通信总线和控制器的多个CAN元件。 用于监视CAN的方法包括将每个控制器识别为主动控制器和非活动控制器之一。 执行故障主动控制器隔离过程以检测和隔离故障主动控制器的存在。 当一个控制器被识别为非活动控制器时，可以执行故障隔离过程来检测和隔离有线打开故障，电线短路故障和控制器故障之一的存在。 当总线错误计数大于预定阈值持续预定时间段时，检测出存在与CAN中的持久总线干扰有关的故障。

公开(公告)号：US20150161825A1

公开(公告)日：2015-06-11

申请号：US14097543

申请日：2013-12-05

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： YOUSSEF A. GHONEIM ,  MUTASIM A. SALMAN ,  MARK N. HOWELL ,  YILU ZHANG ,  SCOTT W. OTTERSON

IPC: G07C5/00

CPC classification number: G07C5/008

Abstract: Methods and systems are provided for vehicular communications. The systems include a server and a controller in a vehicle. The controller is configured to receive data from vehicular components and transmit the data to the remote server. In a normal mode, the data is transmitted in accordance with a normal frequency of events, while in an abnormal mode, the data is transmitted in accordance with an abnormal frequency of events. The abnormal frequency is different from the normal frequency. The abnormal mode is set in response to an event trigger denoting a fault of at least one component.

Abstract translation: 为车辆通讯提供了方法和系统。 这些系统包括车辆中的服务器和控制器。 控制器被配置为从车辆部件接收数据并将数据发送到远程服务器。 在正常模式下，根据事件的正常频率发送数据，而在异常模式下，根据事件的异常频率来发送数据。 异常频率与正常频率不同。 响应于表示至少一个组件的故障的事件触发来设置异常模式。