SYSTEMS AND METHODS FOR CONTROLLING DYNAMIC AVALANCHE IN SWITCHING DEVICES

    公开(公告)号:US20200162073A1

    公开(公告)日:2020-05-21

    申请号:US16193926

    申请日:2018-11-16

    Abstract: Systems and methods for mitigating occurrences of dynamic avalanche events are presented. An electrical system may include a gate-drive unit electrically coupled to a semiconductor switching device and used to drive the switching device by applying a voltage to a gate terminal of the switching device. The electrical system may also include a controller that indicates the switching device to turn off and determines system parameters in response to the switching device turning-off. The controller may determine an intermediate gate voltage based at least in part on the system parameters and may modify the gate-drive unit configuration to apply the appropriate intermediate gate voltage to the gate terminal. The controller may additionally modify the gate-drive unit configuration to apply a turn-off voltage at the gate terminal subsequent to the application of the intermediate gate voltage.

    Vehicle control systems and methods

    公开(公告)号:US10556598B2

    公开(公告)日:2020-02-11

    申请号:US15359909

    申请日:2016-11-23

    Abstract: Aspects of the subject technology relate to systems and methods for monitoring component wear to prevent premature component failure. A control system for a system having one or more mechanical or electronic components may include a life manager that monitors accumulated wear of the one or more components. The life manager may provide an alert and/or limit system operations when the accumulated wear exceeds a limit. The limit may be dynamically determined based on an operating age of the component. The limit may also be defined as a matrix of limits, each defined for a range of a particular operating condition of the component. Operating conditions may include an applied torque range for a vehicle wheel or a thermal cycle temperature range for an electronic switching component.

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