SERVO SYSTEM
    4.
    发明公开
    SERVO SYSTEM 审中-公开

    公开(公告)号:US20230297035A1

    公开(公告)日:2023-09-21

    申请号:US18173352

    申请日:2023-02-23

    申请人: OMRON Corporation

    发明人: Yasushi ONO

    IPC分类号: G05B9/03

    CPC分类号: G05B9/03

    摘要: A servo system includes multiple servo drivers that are operable in cooperation with each other and are each drivable independently with highest possible control accuracy. The servo system includes a first servo driver that drives a first motor, a second servo driver connected to the first servo driver with a first signal line to drive a second motor, and a host device connected to the first and second servo drivers with a second signal line. The second servo driver switches, in response to a switch command from the host device, between a first mode in which the second servo driver drives the second motor in accordance with a first control command from the first servo driver and a second mode in which the second servo driver drives the second motor in accordance with a second control command from the host device.

    Testing a crash sensor device during vehicle operation

    公开(公告)号:US11698631B2

    公开(公告)日:2023-07-11

    申请号:US16869633

    申请日:2020-05-08

    摘要: A crash sensor device may include multiple sensor components positioned along one or more data paths to a communication interface of the crash sensor device. The crash sensor device may include a test control unit. The test control unit may receive a test command from an electronic control unit during operation of a vehicle. The test control unit may perform a test of one or more sensor components, of the multiple sensor components, during operation of the vehicle based on the test command. The test control unit may output a test result to the electronic control unit based on performing the test.

    Redundantly configured automation system and method using three subsystems

    公开(公告)号:US11687044B2

    公开(公告)日:2023-06-27

    申请号:US17184812

    申请日:2021-02-25

    IPC分类号: G05B9/03

    CPC分类号: G05B9/03

    摘要: Method for operating a redundantly configured automation system which includes has a first subsystem, a second subsystem and a third subsystem, wherein a sequence program is implemented in each of the subsystems of the automation system and is executable in a runtime environment to fulfill automation tasks, and wherein a data memory is implemented in the subsystems in each of the automation systems, where the sequence program includes at least a first subprogram and a second subprogram, the data memory in each of the subsystems includes at least a first submemory and a second submemory, the first subprogram and the first submemory are synchronized with a first synchronization clock between the first and second subsystems, and the second subprogram and the second submemory are synchronized with a second synchronization clock between the first and third subsystems, and where the first and synchronization clocks differ from one another.

    Control system
    7.
    发明授权

    公开(公告)号:US11609999B2

    公开(公告)日:2023-03-21

    申请号:US16768729

    申请日:2018-12-04

    申请人: Hitachi, Ltd.

    发明人: Nobuyasu Kanekawa

    摘要: The present invention is capable of realizing normal control of a control device and safe operation of a control target. In the present invention, an automatic control unit 10 generates a control output that is output to a control target in response to an input 1. A safety verification control unit 20 is configured to verify safety of the control output at a plurality of verification levels, and controls the control output on the basis of the verification result. A verification level selection unit manages the state related to the normality of the automatic control unit 10, and selects the verification level of the safety of the control output in the safety verification control unit 20 in accordance with the state.

    Control switching device for abnormality prevention in multiple terminals

    公开(公告)号:US11604440B2

    公开(公告)日:2023-03-14

    申请号:US16495040

    申请日:2017-03-29

    申请人: HITACHI, LTD.

    发明人: Shinji Nakagawa

    IPC分类号: G05B9/03 G05B13/02

    摘要: There is provided a control device that prevents the occurrence of an abnormality in control using artificial intelligence in the case where an abnormality occurs in another terminal that performs the control using the artificial intelligence. A control means (a first control unit) performs the control using artificial intelligence. The control means (second control unit) performs control different from the artificial intelligence. A control switching unit (a switching determination means, a switch) is configured to, when another terminal having the control means (the first control unit) is normal, cause the own control means (the first control unit) to perform the control using artificial intelligence, and when an abnormality occurs in another terminal having the control means (the first control unit), cause the control means (the second control unit) to perform the control different from artificial intelligence.

    Safety Rated Input Module for an Industrial Controller

    公开(公告)号:US20230039029A1

    公开(公告)日:2023-02-09

    申请号:US17970929

    申请日:2022-10-21

    摘要: A system and method for detecting a failure in a redundant signal path during operation of the redundant path is disclosed. A test signal is sequentially injected into each signal path while an input signal is conducted by the other signal path not receiving the test signal. The test signal is selected at a frequency to verify operation of a filter connected in series along each path. A processor generates the test signal, injects the test signal at the input of the filter, and receives the output of the filter. The processor then generates a frequency response of the filter in each signal path as a function of the output from the filter and of the original test signal. The frequency response obtained along each of the redundant signal paths is compared to each other to detect a failure of one of the filters present along the respective signal paths.

    Vehicle redundant processing resource usage

    公开(公告)号:US11550320B2

    公开(公告)日:2023-01-10

    申请号:US16356695

    申请日:2019-03-18

    申请人: Pony AI Inc.

    发明人: Robert Dingli

    IPC分类号: G05D1/00 G05D1/02 G05B9/03

    摘要: Systems, methods, and non-transitory computer readable media may be configured to facilitate usage of vehicle redundant processing resource. A primary processing resource may be dedicated to navigation control of a vehicle. A redundant processing resource may be provided for performing one or more tasks of the navigation control of the vehicle based on a failure of the primary processing resource. One or more available portions of the redundant processing resource may be used for performing one or more tasks of non-navigation control of the vehicle.