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    System and method for time synchronizing nodes in an automotive network using input capture
    1.
    发明申请
    System and method for time synchronizing nodes in an automotive network using input capture 有权

    公开(公告)号：US20060083264A1

    公开(公告)日：2006-04-20

    申请号：US11014936

    申请日：2004-12-17

    申请人： Patrick Jordan ,  Hai Dong ,  Hugh Johnson ,  Prakash Kartha

    发明人： Patrick Jordan ,  Hai Dong ,  Hugh Johnson ,  Prakash Kartha

    IPC分类号： H04J3/06

    CPC分类号： H04J3/0682 ,  H04J3/0664 ,  H04L12/403

    摘要： A system and method for time synchronizing nodes in a switch fabric network of a vehicle. The network has a plurality of nodes that are joined by communication links for the transmission of data there between. Each node of the switch fabric may include a processor, a memory, a clock, a transceiver, and an input capture. The memory is adapted to store and retain timer offsets associated with communication links with neighboring nodes. The transceiver is adapted to transmit and receive synchronization messages between the node and neighboring nodes. The input capture is adapted to capture a timestamp associated with the transmission of synchronization messages. The processor is configured to compute the timer offsets associated with the communication links with neighboring nodes based on the captured timestamps by the input capture function. The computed offsets may then be broadcast and stored by the nodes for subsequent use in time synchronizing data packets through the switch fabric network.

    System and method for evaluating the performance of an automotive switch fabric network
    2.
    发明申请
    System and method for evaluating the performance of an automotive switch fabric network 审中-公开
    用于评估汽车交换机网络性能的系统和方法

    公开(公告)号：US20060083172A1

    公开(公告)日：2006-04-20

    申请号：US11015529

    申请日：2004-12-17

    申请人： Patrick Jordan ,  Alexey Bakhtin ,  Hai Dong ,  Hugh Johnson ,  Prakash Kartha ,  Samuel Levenson ,  Olga Tykuchinskaya

    发明人： Patrick Jordan ,  Alexey Bakhtin ,  Hai Dong ,  Hugh Johnson ,  Prakash Kartha ,  Samuel Levenson ,  Olga Tykuchinskaya

    IPC分类号： H04L1/00

    CPC分类号： H04L43/50 ,  H04L43/106 ,  H04L67/12 ,  H04W24/00 ,  H04W24/06 ,  H04W84/005

    摘要： A system and method for evaluating the performance of an automotive switch fabric network using a diagnostic interface. A diagnostic device and interface is connected to an automotive switch fabric network, comprising of a plurality of communication nodes, through one of the nodes in the switch fabric network. The diagnostic device and interface configures the switch fabric network to operate in a test mode. The diagnostic device and interface will issue a first command to one node to start traffic across a test node at a predetermined traffic rate and a second command to another node to generate a test message that passes through the test node. The test node contains message processing logic that will process the messages as they pass through the test node. A plurality of timestamps is generated in the message processing logic of the test node to monitor the progression of the messages through the processing logic. The test node includes a diagnostic interface agent that collects the timestamp data and reports the data back to the diagnostic interface and device.

    摘要翻译： 一种用于使用诊断接口评估汽车交换机网络的性能的系统和方法。 诊断设备和接口通过交换结构网络中的一个节点连接到包括多个通信节点的汽车交换结构网络。 诊断设备和接口将交换结构网络配置为在测试模式下运行。 诊断设备和接口将向一个节点发出第一个命令，以预定的流量速率在测试节点上启动流量，并向另一个节点发出第二个命令，以生成通过测试节点的测试消息。 测试节点包含消息处理逻辑，它们在通过测试节点时处理消息。 在测试节点的消息处理逻辑中产生多个时间戳以通过处理逻辑监视消息的进程。 测试节点包括诊断接口代理，其收集时间戳数据并将数据报告回诊断接口和设备。

    Method and system for distributing power across an automotive network
    3.
    发明申请
    Method and system for distributing power across an automotive network 审中-公开
    在汽车网络上分配电力的方法和系统

    公开(公告)号：US20070102998A1

    公开(公告)日：2007-05-10

    申请号：US11268872

    申请日：2005-11-08

    申请人： Patrick Jordan ,  Hai Dong ,  Walton Fehr ,  Hugh Johnson ,  Prakash Kartha ,  Donald Remboski

    发明人： Patrick Jordan ,  Hai Dong ,  Walton Fehr ,  Hugh Johnson ,  Prakash Kartha ,  Donald Remboski

    IPC分类号： B60L1/00

    CPC分类号： B60R16/0315 ,  Y02T10/92

    摘要： Nodes which include additional sensing and communication capability as compared to prior nodes. The sensing capability allows determination of actual current flows through the particular nodes, including each port of the node, to allow a determination of power flow to better control operations. Because of this understanding of power flow, smaller modules or nodes can be utilized if desired. For protection of a lower power node, an upstream node can open the link to the node should it go overcurrent or otherwise fault. Further, with the additional sensing capability, actual load balancing and multiple controllable flows, such as for standby, can be developed. The additional communication in combination with the sensing also allows better fault isolation. By being able to determine the actual location of the fault, other operations in the vehicle can continue with just the faulty area being disconnected.

    摘要翻译： 与以前的节点相比，包括附加的感测和通信能力的节点。 感测能力允许确定包括节点的每个端口的特定节点的实际电流，以允许确定功率流以更好地控制操作。 由于对功率流的理解，如果需要，可以使用较小的模块或节点。 为了保护较低功率节点，如果上游节点过流或其他故障，则上游节点可以打开到节点的链路。 此外，利用额外的感测能力，可以开发实际的负载平衡和多个可控流量，例如待机。 与传感相结合的附加通信还可以实现更好的故障隔离。 通过能够确定故障的实际位置，车辆中的其他操作可以继续，只是故障区域被断开。

    System and method for time synchronizing nodes in an automotive network using input capture
    4.
    发明申请
    System and method for time synchronizing nodes in an automotive network using input capture 有权

    公开(公告)号：US20060083265A1

    公开(公告)日：2006-04-20

    申请号：US11016139

    申请日：2004-12-17

    申请人： Patrick Jordan ,  Hai Dong ,  Hugh Johnson ,  Prakash Kartha

    发明人： Patrick Jordan ,  Hai Dong ,  Hugh Johnson ,  Prakash Kartha

    IPC分类号： H04L12/28 ,  H04L12/56

    CPC分类号： H04J3/0682 ,  H04J3/0652 ,  H04J3/0658 ,  H04L49/15 ,  H04L2012/40215 ,  H04L2012/40273

    摘要： A system and method for time synchronizing nodes in a switch fabric network of a vehicle. A synchronization request message is transmitted from a requesting node to a neighboring node. At the time the synchronization request message is sent, the requesting node will store a unique message identification associated with the request message as well as a first timestamp that is associated with the time that the synchronization request message was transmitted by the requesting node. The neighboring node will receive the synchronization request message and store a second timestamp associated with the time that the synchronization request message was received by the neighboring node. Thereafter, the neighboring node will transmit to the requesting node a synchronization response message that includes the message identification and the second timestamp. The requesting node will then calculate a timer offset value that is based on the first timestamp and the second timestamp. The timer offset values may then be shared with other nodes in the network so that a summed offset may be used to transmit network messages across a plurality of nodes.

    System and method for streaming sequential data through an automotive switch fabric
    5.
    发明申请
    System and method for streaming sequential data through an automotive switch fabric 有权

    公开(公告)号：US20060083229A1

    公开(公告)日：2006-04-20

    申请号：US11015153

    申请日：2004-12-17

    申请人： Patrick Jordan ,  Hai Dong ,  Hugh Johnson ,  Prakash Kartha ,  Samuel Levenson

    发明人： Patrick Jordan ,  Hai Dong ,  Hugh Johnson ,  Prakash Kartha ,  Samuel Levenson

    IPC分类号： H04L12/56 ,  H04L12/28

    CPC分类号： H04L12/2854

    摘要： A system and method for streaming sequential data through a vehicle switch fabric network. This is particular useful in areas such as reprogramming nodes in the automotive switch fabric network where relatively large records or messages need to be transmitted through the switch fabric, although the invention may be used in other areas. In sum, the system and method described herein takes large data records and breaks them down into smaller units (data packets) that fit within the constraints of the physical layer on which communication links in the switch fabric network is built. The smaller data packets are assigned with a message identification and a sequence number. Data packets associated with the same data record or message are assigned with the same message identification but may differ in their sequence number. Each data packet is transmitted over the vehicle switch fabric network to a destination node. At the destination node, the data packets may be reassembled to its original data format based on the message identification and sequence numbers. The reassembled message may then be presented to an application in the node for processing.