Method of validating plurality of data during serial communication using a dual path across a single serial link
    11.
    发明授权
    Method of validating plurality of data during serial communication using a dual path across a single serial link 有权
    在串行通信期间使用跨单个串行链路的双路径来验证多个数据的方法

    公开(公告)号:US07464203B2

    公开(公告)日:2008-12-09

    申请号:US11460338

    申请日:2006-07-27

    IPC分类号: G06F15/00

    CPC分类号: H04L1/0041 H04L1/0061

    摘要: A method and apparatus is provided for validating a plurality of variable data transmitted in an automobile, comprising generating a control copy and a redundant copy of the variable data, calculating a pre-transmittal cross-check measure using the redundant copy of the variable data, and generating a transmittal message using the control copy of the data and the pre-transmittal cross-check measure.

    摘要翻译: 提供一种用于验证在汽车中发送的多个可变数据的方法和装置,包括生成可变数据的控制副本和冗余副本,使用可变数据的冗余副本计算预发送交叉检查措施, 以及使用数据的控制副本和预传输交叉检查措施来生成传送消息。

    Method for determination of pre-authorization engine operation time for a vehicle theft deterrent system
    12.
    发明授权
    Method for determination of pre-authorization engine operation time for a vehicle theft deterrent system 有权
    确定车辆防盗系统预授权引擎运行时间的方法

    公开(公告)号:US07222006B2

    公开(公告)日:2007-05-22

    申请号:US10755949

    申请日:2004-01-13

    IPC分类号: G06F7/00

    CPC分类号: B60R25/04

    摘要: Methods and apparatus are provided for determining the duration a motor vehicle engine may operate while operator authorization is verified in response to an ignition request. In one embodiment the method includes the steps of decrementing a pre-authorization timer from a first predetermined time limit and a maximum authorization timer from a second predetermined time limit in response to the ignition request. Also upon receipt of the ignition request an authorization process is initiated. Decrementing of the pre-authorization timer is halted in response to active operation of the starter motor of the motor vehicle, and operation of the motor vehicle is inhibited if either the pre-authorization timer or the maximum authorization timer decrements to zero before completion of the authorization operation.

    摘要翻译: 提供了用于确定机动车辆发动机可操作的持续时间的方法和装置,同时响应点火请求来验证操作者授权。 在一个实施例中,该方法包括以下步骤:响应于点火请求,从第一预定时间限制递减预授权定时器和从第二预定时间限制最大授权定时器。 此外,在接收到点火请求后,启动授权过程。 响应于机动车辆的起动电动机的主动操作停止预授权定时器的减少,并且如果在完成之前预授权定时器或最大授权定时器递减到零,则禁止机动车辆的操作 授权操作。

    Dual processor supervisory control system for a vehicle
    14.
    发明授权
    Dual processor supervisory control system for a vehicle 有权
    车载双处理器监控系统

    公开(公告)号:US07467029B2

    公开(公告)日:2008-12-16

    申请号:US11054571

    申请日:2005-02-09

    IPC分类号: G06F11/08

    摘要: A vehicle control module for controlling an actuator unit in response to an input having a first processor, a first communication link coupled to the first processor, and a second processor coupled to the first processor via the first communication link. The first processor is configured to generate a first value based on the input, transmit the first value to the actuator unit, and receive a second value from the actuator unit based on a data received by the actuator unit from the first processor. The first communication link is configured to transfer the input and the second value to the second processor. The second processor is configured to determine a third value based on the input, and verify the first value based on a comparison of the second value with the third value.

    摘要翻译: 一种车辆控制模块,用于响应于具有第一处理器的输入来控制致动器单元,耦合到第一处理器的第一通信链路和经由第一通信链路耦合到第一处理器的第二处理器。 第一处理器被配置为基于输入产生第一值,将第一值发送到致动器单元,并且基于由致动器单元从第一处理器接收的数据从致动器单元接收第二值。 第一通信链路被配置为将输入和第二值传送到第二处理器。 第二处理器被配置为基于输入来确定第三值,并且基于第二值与第三值的比较来验证第一值。

    Serial data communication—CAN memory error detection methods
    16.
    发明授权
    Serial data communication—CAN memory error detection methods 有权
    串行数据通信 - CAN存储器错误检测方法

    公开(公告)号:US07882424B2

    公开(公告)日:2011-02-01

    申请号:US11460318

    申请日:2006-07-27

    IPC分类号: G06F11/00

    CPC分类号: H04L1/0061 H04L2001/0094

    摘要: A method is provided for formatting a message, with a first plurality of bits forming a data component, and a second plurality of bits forming a reserved component, for transmission in a vehicle. The method comprises the steps of calculating an initial checksum from the data component, calculating a revised checksum at least from the initial checksum, and storing the revised checksum in the reserved component. The number of bits in the reserved component is less than the number of bits in the data component.

    摘要翻译: 提供一种用于格式化消息的方法,其中形成数据分量的第一多个比特和形成预留分量的第二多个比特,用于在车辆中传输。 该方法包括以下步骤:从数据组件计算初始校验和,至少从初始校验和计算修正的校验和,并将修改的校验和存储在保留组件中。 保留组件中的位数小于数据组件中的位数。

    Apparatus and method for sensing positions of an ignition switch
    17.
    发明授权
    Apparatus and method for sensing positions of an ignition switch 有权
    用于感测点火开关位置的装置和方法

    公开(公告)号:US06479908B1

    公开(公告)日:2002-11-12

    申请号:US09552774

    申请日:2000-04-20

    IPC分类号: B60R2504

    CPC分类号: B60R25/2063 B60R25/04

    摘要: An ignition switch sensor having a plurality of contacts arranged on a sensor to make intermittent contact with a movable contact and generate a first plurality of outputs corresponding to the position of the movable contact relative to the plurality of contacts. A power mode module receives the first plurality of outputs and compares the outputs to data stored within the memory of the module and provides a second plurality outputs according to the value of the first plurality of outputs. A theft resistor may be integrated into the ignition switch sensor circuitry to facilitate protection from tampering and unauthorized starting of the vehicle's engine.

    摘要翻译: 一种点火开关传感器,其具有布置在传感器上的多个触点,以与可动触点间歇地接触,并且产生对应于可动触点相对于多个触点的位置的第一多个输出。 功率模块模块接收第一多个输出,并将输出与存储在模块的存储器中的数据进行比较,并根据第一多个输出的值提供第二多个输出。 防盗电阻器可以集成到点火开关传感器电路中,以便于防止车辆发动机的窜改和未经授权的启动。

    Motor vehicle engine immobilizer security system and method
    18.
    发明授权
    Motor vehicle engine immobilizer security system and method 有权
    汽车发动机防盗器安全系统及方法

    公开(公告)号:US07034654B2

    公开(公告)日:2006-04-25

    申请号:US10756729

    申请日:2004-01-13

    摘要: Methods and apparatus are provided for insuring that a motor vehicle is being operated by an authorized operator. The apparatus includes an electronic control unit (ECU), an engine immobilizer unit, and a shared encryption key. The ECU generates a challenge by combining the output of a pseudo-random number generator and the output of a somewhat random number generator and cycling the combined number through a linear feedback shift register. The ECU sends the challenge to the immobilizer unit where it is encrypted with the shared key and sent back to the ECU as a response. The ECU uses the same key to encrypt the challenge and compares the encrypted challenge to the response. If the response matches the encrypted challenge, engine operation is enabled.

    摘要翻译: 提供了确保机动车辆由授权操作员操作的方法和装置。 该装置包括电子控制单元(ECU),发动机防盗单元和共享加密密钥。 ECU通过组合伪随机数发生器的输出和稍稍随机数发生器的输出并通过线性反馈移位寄存器循环组合数来产生挑战。 ECU将挑战发送到使用共享密钥加密的防盗装置,作为响应发送回ECU。 ECU使用相同的密钥来加密挑战,并将加密的挑战与响应进行比较。 如果响应与加密的挑战相匹配,则启动引擎操作。

    Vehicle message filter
    19.
    发明授权
    Vehicle message filter 有权
    车辆信息过滤器

    公开(公告)号:US08788731B2

    公开(公告)日:2014-07-22

    申请号:US13561515

    申请日:2012-07-30

    IPC分类号: G06F13/42 G06F15/16 H04M1/725

    摘要: A message filtering system for a communications system in a vehicle enabling communication between various systems and subsystems via a vehicle bus. Electronic devices may be coupled to the bus. Electronic control units (ECUs) may be located therebetween. The ECU may regulate or control the flow of messages between the bus and the electronic devices. Message filters may apply a filter policy to incoming and outgoing messages. In addition, the message filtering system may have an alert policy for violations of the filter policy. In one embodiment, the source identity of outgoing messages may be overwritten by a message filter dedicated to outgoing messages; this message filter may be an application specific integrated circuit.

    摘要翻译: 一种用于车辆中的通信系统的消息过滤系统,其实现经由车辆总线的各种系统和子系统之间的通信。 电子设备可以耦合到总线。 电子控制单元(ECU)可以位于它们之间。 ECU可以调节或控制总线和电子设备之间的消息流。 消息过滤器可以对传入和传出消息应用过滤器策略。 此外,消息过滤系统可能具有违反过滤器策略的警报策略。 在一个实施例中,输出消息的源标识可以被专用于传出消息的消息过滤器覆盖; 该消息过滤器可以是专用集成电路。

    VEHICLE MESSAGE FILTER
    20.
    发明申请
    VEHICLE MESSAGE FILTER 有权
    车辆信息滤波器

    公开(公告)号:US20140032800A1

    公开(公告)日:2014-01-30

    申请号:US13561515

    申请日:2012-07-30

    IPC分类号: G06F13/42

    摘要: A message filtering system for a communications system in a vehicle enabling communication between various systems and subsystems via a vehicle bus. Electronic devices may be coupled to the bus. Electronic control units (ECUs) may be located therebetween. The ECU may regulate or control the flow of messages between the bus and the electronic devices. Message filters may apply a filter policy to incoming and outgoing messages. In addition, the message filtering system may have an alert policy for violations of the filter policy. In one embodiment, the source identity of outgoing messages may be overwritten by a message filter dedicated to outgoing messages; this message filter may be an application specific integrated circuit.

    摘要翻译: 一种用于车辆中的通信系统的消息过滤系统,其实现经由车辆总线的各种系统和子系统之间的通信。 电子设备可以耦合到总线。 电子控制单元(ECU)可以位于它们之间。 ECU可以调节或控制总线和电子设备之间的消息流。 消息过滤器可以对传入和传出消息应用过滤器策略。 此外,消息过滤系统可能具有违反过滤器策略的警报策略。 在一个实施例中,输出消息的源标识可以被专用于传出消息的消息过滤器覆盖; 该消息过滤器可以是专用集成电路。