公开(公告)号：US20150346260A1

公开(公告)日：2015-12-03

申请号：US14720414

申请日：2015-05-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： SHENGBING JIANG ,  XINYU DU ,  ATUL NAGOSE

IPC: G01R31/02 ,  G06F11/34 ,  G01R31/00 ,  G06F11/30

CPC classification number: G01R31/025 ,  G01R31/006 ,  G06F11/0739 ,  G06F11/0793 ,  G06F11/3013 ,  G06F11/349

Abstract: A controller area network (CAN) includes a CAN bus having a CAN-H wire, a CAN-L wire, and a pair of CAN bus terminators located at opposite ends of the CAN bus. The CAN further includes a plurality of nodes including controllers wherein at least one of the controllers is a monitoring controller. The monitoring controller includes a detection control routine for isolating faults on the CAN bus including measuring a CAN-H wire voltage, measuring a CAN-L wire voltage, and isolating a short fault based upon the CAN-H wire voltage and the CAN-L wire voltage.

Abstract translation: 控制器局域网（CAN）包括具有CAN-H线，CAN-L线和位于CAN总线两端的一对CAN总线终端的CAN总线。 CAN还包括多个节点，包括控制器，其中至少一个控制器是监控控制器。 监控控制器包括用于隔离CAN总线故障的检测控制程序，包括测量CAN-H线电压，测量CAN-L线电压，并根据CAN-H线电压和CAN-L隔离短路故障 线电压。

公开(公告)号：US20150361941A1

公开(公告)日：2015-12-17

申请号：US14304889

申请日：2014-06-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： XINYU DU ,  ATUL NAGOSE ,  YILU ZHANG

IPC: F02N11/10 ,  G01K13/00 ,  G01R31/36 ,  G01M15/04

CPC classification number: F02N11/108 ,  F02N2200/045 ,  G01K13/00 ,  G01K2205/00 ,  G01M15/042 ,  G01M15/048 ,  G01R31/3606 ,  G01R31/3693

Abstract: An internal combustion engine employs a starting system. A method for evaluating the starting system includes determining a cranking resistance ratio between a starter and a battery of the starting system during engine cranking. The cranking resistance ratio is normalized based upon an operating temperature of the starting system, and the starting system is evaluated based upon the normalized cranking resistance ratio.

Abstract translation: 内燃机采用启动系统。 用于评估起动系统的方法包括在发动机起动期间确定起动器和起动系统的电池之间的起动阻力比。 基于起动系统的工作温度对起动阻力比进行归一化，基于归一化起动阻力比来评价起动系统。

公开(公告)号：US20170153282A1

公开(公告)日：2017-06-01

申请号：US15340043

申请日：2016-11-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： XINYU DU ,  SHENGBING JIANG ,  ATUL NAGOSE ,  AARON B. BLOOM

IPC: G01R31/00 ,  G01R31/02

CPC classification number: G01R31/007 ,  G01R31/025 ,  G06F11/0739 ,  G06F11/349 ,  H04L2012/40215

Abstract: A method of detecting a ground fault in a faulty electronic control unit. A ground fault detection technique executed by a processor is enabled. The processor determines a message count for each respective electronic control unit transmitted during a ground offset condition over a predetermined time period. The message count includes messages communicated within a communication bus having a measured voltage at least a predetermined voltage value above an expected voltage value. The message counts for each respective electronic control unit are normalized. The faulty electronic control unit is identified as a function of the normalized message counts. A fault signal is output to identify the fault electronic control unit.

公开(公告)号：US20150347258A1

公开(公告)日：2015-12-03

申请号：US14720332

申请日：2015-05-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： XINYU DU ,  SHENGBING JIANG ,  ATUL NAGOSE ,  YILU ZHANG ,  NATALIE ANN WIENCKOWSKI

IPC: G06F11/30 ,  G06F11/20

CPC classification number: G06F11/3013 ,  G06F11/0739 ,  G06F11/0751 ,  G06F11/2007 ,  G06F11/3027 ,  G06F11/3062

Abstract: A controller area network (CAN) includes a CAN bus having a CAN-H wire, a CAN-L wire, and a pair of CAN bus terminators located at opposite ends of the CAN bus. The CAN further includes a plurality of nodes including controllers wherein at least one of the controllers is a monitoring controller. The monitoring controller includes a CAN monitoring routine for detecting a wire short fault in the CAN bus and its location.

Abstract translation: 控制器局域网（CAN）包括具有CAN-H线，CAN-L线和位于CAN总线相对端的一对CAN总线终端的CAN总线。 CAN还包括多个节点，包括控制器，其中至少一个控制器是监控控制器。 监控控制器包括CAN监控程序，用于检测CAN总线中的短路故障及其位置。