MONITORING AND DIAGNOSING VEHICLE SYSTEM PROBLEMS USING MACHINE LEARNING CLASSIFIERS

    公开(公告)号:US20200312056A1

    公开(公告)日:2020-10-01

    申请号:US16367827

    申请日:2019-03-28

    Abstract: A system for monitoring operation of a vehicle includes a processing device including an interface configured to receive measurement data from sensing devices configured to measure parameters of a vehicle system. The processing device is configured to receive measurement data from each of the plurality of sensing devices, and in response to detection of a malfunction in the vehicle, input at least a subset of the measurement data to a machine learning classifier associated with a vehicle subsystem, the classifier configured to define a class associated with normal operation of the vehicle subsystem. The processing device is also configured to determine whether the subset of the measurement data belongs to the class, and based on at least a selected amount of the subset of the measurement data being outside of the class, output a fault indication, the fault indication identifying the vehicle subsystem as having a contribution to the malfunction.

    MODEL-PREDICTIVE CONTROL OF A POWERTRAIN SYSTEM USING PREVIEW INFORMATION

    公开(公告)号:US20200223423A1

    公开(公告)日:2020-07-16

    申请号:US16249171

    申请日:2019-01-16

    Abstract: A method for controlling continuous and discrete actuators (e.g., modes) in a powertrain system includes receiving preview information from a sensor(s) describing an upcoming dynamic state at a future time point, and providing control inputs for the actuators to a controller that includes the preview information. The input set collectively describes a future torque or speed output state at the future time point. The controller processes the input set via a dynamical predictive model, in real time, to determine control solutions to take at the present time point for implementing the dynamic state at the future time point. A lowest opportunity cost control solution is determined and optimized. The controller executes the optimized solution at the present time step.

    Multivariable engine torque and emission closed-loop control for internal combustion engine

    公开(公告)号:US10208696B2

    公开(公告)日:2019-02-19

    申请号:US15299635

    申请日:2016-10-21

    Abstract: Disclosed are engine torque and emission control (ETEC) systems, methods for using such systems, and motor vehicles with engines employing ETEC schemes. An ETEC system is disclosed for operating an internal combustion engine (ICE) assembly. The system includes an engine sensor for monitoring engine torque, an exhaust sensor for monitoring nitrogen oxide (NOx) output of the ICE assembly, and an engine control unit (ECU) communicatively connected to the engine sensor, exhaust sensor, and ICE assembly. The ECU is programmed to: receive desired engine torque and desired NOx output data; determine, from current engine torque and current NOx output data, desired engine torque, and desired NOx output, desired engine operation and exhaust operation references; determine, from the desired engine operation and exhaust operation references, an engine operation control command and an exhaust operation control command; and regulate operation of the ICE assembly via the engine operation and exhaust operation control commands.

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