Diagnosis of switch stuck open condition for a button that actuates three or more switches

    公开(公告)号:US10571521B2

    公开(公告)日:2020-02-25

    申请号:US15992782

    申请日:2018-05-30

    Abstract: A method for detecting a failure mode in an electronic selector having a button coupled to a first switch, a second switch, and a third switch, the method includes incrementing a button activation counter once for each button activation event and incrementing a first switch-closed counter, a second switch-closed counter, and a third switch-closed counter once for each button activation event if the respective switch is closed at any time during the button activation event. The method further includes incrementing a first switch-opened counter, a second switch-opened counter, and a third switch-opened counter once for each button activation event. The method further includes evaluating a fault status of the first switch, the second switch, or the third switch when the button activation counter reaches or exceeds a predetermined threshold; and reporting the fault status of the first switch, the second switch or the third switch.

    METHOD OF PROVIDING VIRTUAL NULL POSITION FOR ELECTRONIC SHIFT LEVER

    公开(公告)号:US20170248227A1

    公开(公告)日:2017-08-31

    申请号:US15354352

    申请日:2016-11-17

    Inventor: Ming Zhao

    Abstract: A method of providing improved control and response to an electronic transmission range selection system comprehends providing a virtual null position for the electronic transmission range selection device including the steps of determining the current position of the shift lever, confirming the position of the shift lever, virtual Null and physical Reverse to Neutral confirmation timer thresholds are selected, the timers are incremented, a determination is made that the timers have started, a determination is made that the virtual Null timer has expired, whereupon a virtual Null request is generated. Subsequent steps determine if the physical Neutral timer has expired and command the transmission to Neutral. In related method steps, a current range of the transmission is determined, the state of a shift interlock button is determined, and certain shift changes are accepted or rejected.

    Method of performing microprocessor ALU integrity test over a distributed asynchronous serial communication network for ASIL-D level safety critical applications
    3.
    发明授权
    Method of performing microprocessor ALU integrity test over a distributed asynchronous serial communication network for ASIL-D level safety critical applications 有权
    通过分布式异步串行通信网络对ASIL-D级安全关键应用程序执行微处理器ALU完整性测试的方法

    公开(公告)号:US09268953B2

    公开(公告)日:2016-02-23

    申请号:US14268180

    申请日:2014-05-02

    CPC classification number: G06F21/602 G06F13/4221 G06F21/44

    Abstract: A system includes first and second modules of a vehicle. The first module stores at least one seed value, calculates a key based on the at least one seed value, forms a seed key pair based on the calculated key and the at least one seed value, generates a data bus message including the seed key pair and data corresponding to operation of the first module, and transmits, over a distributed vehicle network, the data bus message. The second module receives the data bus message over the distributed vehicle network, retrieves the seed key pair from the data bus message, determines whether the calculated key matches an expected key, and selectively verifies integrity of the first module based on the determination of whether the calculated key matches the expected key.

    Abstract translation: 系统包括车辆的第一和第二模块。 第一模块存储至少一个种子值,基于至少一个种子值计算密钥,基于计算的密钥和至少一个种子值形成种子密钥对,生成包括种子密钥对的数据总线消息 以及对应于第一模块的操作的数据,并且通过分布式车辆网络发送数据总线消息。 第二模块通过分布式车辆网络接收数据总线消息,从数据总线消息中检索种子密钥对,确定所计算的密钥是否与期望密钥匹配,并且基于确定是否确定第一模块的完整性, 计算的键与预期键匹配。

    Method of providing virtual null position for electronic shift lever

    公开(公告)号:US10107393B2

    公开(公告)日:2018-10-23

    申请号:US15354352

    申请日:2016-11-17

    Inventor: Ming Zhao

    Abstract: A method of providing improved control and response to an electronic transmission range selection system comprehends providing a virtual null position for the electronic transmission range selection device including the steps of determining the current position of the shift lever, confirming the position of the shift lever, virtual Null and physical Reverse to Neutral confirmation timer thresholds are selected, the timers are incremented, a determination is made that the timers have started, a determination is made that the virtual Null timer has expired, whereupon a virtual Null request is generated. Subsequent steps determine if the physical Neutral timer has expired and command the transmission to Neutral. In related method steps, a current range of the transmission is determined, the state of a shift interlock button is determined, and certain shift changes are accepted or rejected.

    DIAGNOSIS OF SWITCH STUCK OPEN CONDITION FOR A BUTTON THAT ACTUATES THREE OR MORE SWITCHES

    公开(公告)号:US20190369164A1

    公开(公告)日:2019-12-05

    申请号:US15992782

    申请日:2018-05-30

    Abstract: A method for detecting a failure mode in an electronic selector having a button coupled to a first switch, a second switch, and a third switch, the method includes incrementing a button activation counter once for each button activation event and incrementing a first switch-closed counter, a second switch-closed counter, and a third switch-closed counter once for each button activation event if the respective switch is closed at any time during the button activation event. The method further includes incrementing a first switch-opened counter, a second switch-opened counter, and a third switch-opened counter once for each button activation event. The method further includes evaluating a fault status of the first switch, the second switch, or the third switch when the button activation counter reaches or exceeds a predetermined threshold; and reporting the fault status of the first switch, the second switch or the third switch.

    METHOD OF PERFORMING MICROPROCESSOR ALU INTEGRITY TEST OVER A DISTRIBUTED ASYNCHRONOUS SERIAL COMMUNICATION NETWORK FOR ASIL-D LEVEL SAFETY CRITICAL APPLICATIONS
    7.
    发明申请
    METHOD OF PERFORMING MICROPROCESSOR ALU INTEGRITY TEST OVER A DISTRIBUTED ASYNCHRONOUS SERIAL COMMUNICATION NETWORK FOR ASIL-D LEVEL SAFETY CRITICAL APPLICATIONS 有权
    用于ASIL-D级安全关键应用的分布式异步串行通信网络执行微处理器ALU完整性测试的方法

    公开(公告)号:US20150213277A1

    公开(公告)日:2015-07-30

    申请号:US14268180

    申请日:2014-05-02

    CPC classification number: G06F21/602 G06F13/4221 G06F21/44

    Abstract: A system includes first and second modules of a vehicle. The first module stores at least one seed value, calculates a key based on the at least one seed value, forms a seed key pair based on the calculated key and the at least one seed value, generates a data bus message including the seed key pair and data corresponding to operation of the first module, and transmits, over a distributed vehicle network, the data bus message. The second module receives the data bus message over the distributed vehicle network, retrieves the seed key pair from the data bus message, determines whether the calculated key matches an expected key, and selectively verifies integrity of the first module based on the determination of whether the calculated key matches the expected key.

    Abstract translation: 系统包括车辆的第一和第二模块。 第一模块存储至少一个种子值,基于至少一个种子值计算密钥,基于计算的密钥和至少一个种子值形成种子密钥对,生成包括种子密钥对的数据总线消息 以及对应于第一模块的操作的数据,并且通过分布式车辆网络发送数据总线消息。 第二模块通过分布式车辆网络接收数据总线消息,从数据总线消息中检索种子密钥对,确定所计算的密钥是否与期望密钥匹配,并且基于确定是否确定第一模块的完整性, 计算的键与预期键匹配。

    Vehicle launch from standstill under adaptive cruise conrol

    公开(公告)号:US11590972B2

    公开(公告)日:2023-02-28

    申请号:US16912221

    申请日:2020-06-25

    Abstract: In accordance with an exemplary embodiment, a vehicle is provided that includes a body, a drive system, and a control system for controlling the adaptive cruise control functionality for the vehicle. The drive system is disposed within the body, and has adaptive cruise control functionality. The control system includes: one or more sensors disposed onboard the vehicle and configured to obtain sensor data for monitoring a driver of the vehicle while the vehicle is stopped during adaptive cruise control operation while a target vehicle in front of the vehicle has stopped; and a processor coupled to the one or more sensors and configured to provide instructions for automatically resuming movement of the vehicle, when the target vehicle resumes movement, based on the monitoring of the driver of the vehicle.

    VEHICLE LAUNCH FROM STANDSTILL UNDER ADAPTIVE CRUISE CONROL

    公开(公告)号:US20210402993A1

    公开(公告)日:2021-12-30

    申请号:US16912221

    申请日:2020-06-25

    Abstract: In accordance with an exemplary embodiment, a vehicle is provided that includes a body, a drive system, and a control system for controlling the adaptive cruise control functionality for the vehicle. The drive system is disposed within the body, and has adaptive cruise control functionality. The control system includes: one or more sensors disposed onboard the vehicle and configured to obtain sensor data for monitoring a driver of the vehicle while the vehicle is stopped during adaptive cruise control operation while a target vehicle in front of the vehicle has stopped; and a processor coupled to the one or more sensors and configured to provide instructions for automatically resuming movement of the vehicle, when the target vehicle resumes movement, based on the monitoring of the driver of the vehicle.

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