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公开(公告)号：US20240272977A1
公开(公告)日：2024-08-15
申请号：US18564128
申请日：2022-04-29
IPC分类号： G06F11/07
CPC分类号： G06F11/0772 , G06F11/0757
摘要： Provided is a method for monitoring a time schedule of a first thread running on a control unit of an automated vehicle. The method includes a step of providing, to a second thread, a first timestamp corresponding to a starting time of the first thread, and a step of providing, to the second thread, a second timestamp corresponding to an end time of the first thread. The method further includes a step of computing, by use of the second thread, a difference between the first timestamp and the second timestamp, and a step of comparing, by use of the second thread, the computed difference to a predefined threshold for monitoring the time schedule of the first thread.
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公开(公告)号：US20230353469A1
公开(公告)日：2023-11-02
申请号：US18027762
申请日：2021-08-26
IPC分类号： H04L43/0852 , H04L41/149 , H04L41/147
CPC分类号： H04L43/0852 , H04L41/149 , H04L41/147
摘要： A method for determining a correctness of an actually received timestamp is provided. A communication network includes a master clock, a first ECU having a first slave clock, a validator having a second slave clock, and a first communication bus. The first ECU uses a first communication standard having a deterministic scheme. The method includes synchronizing, at the first ECU, a time of the first slave clock to a global time of the master clock, synchronizing, at the validator, a time of the second slave clock to the global time of the master clock, predicting, at the validator, a timestamp to be received in an actual communication cycle from the first ECU based on the deterministic scheme of the communication standard used by the first ECU, and comparing, at the validator, the predicted timestamp with the actually received timestamp from the first ECU.
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公开(公告)号：US20240243830A1
公开(公告)日：2024-07-18
申请号：US18563434
申请日：2022-04-26
CPC分类号： H04J3/0667 , H04J3/0644 , H04J3/14
摘要： Provided is a method for validating synchronized local times of at least a first control unit and a second control unit of a vehicle, wherein the method includes receiving, at each one of the at least two control units, a synchronization message including a master time; synchronizing, at each one of the at least two control units, a local time of the respective one of the at least two control units to the received master time; communicating the synchronized local time from the first control unit to the second control unit; and comparing, at the second control unit, the communicated local time of the first control unit to the synchronized local time of the second control unit for validating the synchronized local times of the at least two control units.
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公开(公告)号：US20240153283A1
公开(公告)日：2024-05-09
申请号：US18279944
申请日：2022-02-24
CPC分类号： G06V20/597 , B60W50/14 , B60W2420/403 , B60W2540/225
摘要： A driver monitoring system includes a first control unit, a second control unit, and a camera system. The camera system is configured to acquire image data of a driver and to output information corresponding to the image data to the first and second control units. The first control unit is configured to define a predetermined driver state based on the information received from the camera system and to output the defined driver state to the second control unit. The second control unit is configured to subject the information received from the camera system to a first plausibility check, to subject the driver state received from the first control unit to a second plausibility check, and to output a control signal to an actuator system and/or an information output device based on a result of the first and second plausibility checks and the driver state.
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公开(公告)号：US20230093337A1
公开(公告)日：2023-03-23
申请号：US17798955
申请日：2020-02-21
发明人： Mohamed-Saad ABDELHAMEED , Manjeet Singh BILRA , Karl BUDWEISER , Wolfgang LAENGST , Markus SCHURIUS , Nils UNGER
IPC分类号： H04J3/06
摘要： A method performs time-synchronization between a master clock and a plurality of slave clocks. The method performs a forward time-synchronization from the master clock to the plurality of slave clocks. Further, the method performs a reverse time-synchronization from the plurality of slave clocks to a corresponding plurality of validator clocks. In addition, the method validates the time-synchronization between the plurality of slave clocks, notably between the master clock and the plurality of slave clocks, based on the plurality of validator clocks.
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公开(公告)号：US20240195716A1
公开(公告)日：2024-06-13
申请号：US18286805
申请日：2021-04-16
IPC分类号： H04L43/0823 , H04J3/06 , H04L12/403
CPC分类号： H04L43/0823 , H04J3/0667 , H04L12/403
摘要： A method for validating time synchronization in a communication network of an automated vehicle includes sending a time synchronization message from a master clock to two control units of a first communication network, respectively, wherein the time synchronization message includes a master time; synchronizing a local time of the two control units of the first communication network to the received master time, respectively; sending the synchronized local times of the two control units of the first communication network to a central validator of the first communication network, respectively; comparing, at the central validator of the first communication network, the received synchronized local times of the two control units of the first communication network to each other; and, if a difference between the received synchronized local times is larger than a predefined first threshold, outputting an error message from the central validator of the first communication network to the automated vehicle.
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公开(公告)号：US20230410531A1
公开(公告)日：2023-12-21
申请号：US18027656
申请日：2020-09-23
CPC分类号： G06V20/58 , G06V10/80 , G06V20/588
摘要： Provided is a method for determining a correctness of image data, the image data being captured by at least two cameras of a camera system installed at a vehicle. The method includes detecting at least one feature in the image data captured by a first one of the at least two cameras, determining if the at least one feature can be detected in the image data captured by a second one of the at least two cameras, and if the at least one feature can be detected in the image data captured by the second one of the at least two cameras, determining the correctness of the image data.
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公开(公告)号：US20230376446A1
公开(公告)日：2023-11-23
申请号：US18031187
申请日：2020-10-12
CPC分类号： G06F13/4295 , H04J3/0661 , H04J3/14
摘要： A method includes sending, from the master controller to the slave controller, a follow up message in response to a pull of a predefined pin, wherein the follow up message includes a global time of the master controller when the predefined pin was pulled; sending, from the slave controller to the master controller, a validation message in response to the received follow up message, wherein the validation message includes a global time of the slave controller when the pull of the predefined pin is detected by the slave controller; and validating the time synchronization by checking, at the master controller and/or the slave controller, if a difference between the global time of the master controller when the predefined pin was pulled and the global time of the slave controller when the pull of the predefined pin is detected by the slave controller is smaller than a predefined first threshold.
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9.发明公开公开(公告)号：US20230155806A1
公开(公告)日：2023-05-18
申请号：US17917091
申请日：2020-04-06
CPC分类号： H04L7/0012 , H04L12/40 , H04L2012/40215 , H04L2012/40241 , H04L2012/40273
摘要： A method for performing time-synchronization between a master clock of a master unit and a plurality of slave clocks of a corresponding plurality of slave units includes sending a forward time-synchronization message indicative of the master clock from the master unit to the plurality of slave units, in order to enable the plurality of slave units to time-synchronize their respective slave clocks with the master clock. The method also includes receiving a reverse time-synchronization message indicative of the respective slave clock from each of the plurality of slave units at a first validator. The method also includes time-synchronizing a plurality of validator clocks of the first validator to the corresponding plurality of slave clocks using the reverse time-synchronization messages from the plurality of slave units, and validating the time-synchronization between the plurality of slave clocks at the first validator based on the plurality of validator clocks.
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