Abstract: Systems and methods of testing a vehicle system. The systems and methods generate a simulation of a driving scenario to provide simulation video data, display the simulation on a monitor using the simulation video data, capture the displayed simulation using a camera system of the vehicle system to provide video data, process the video data using a perception algorithm to detect and track objects in the video data to provide perception data, control a vehicle actuator of the vehicle system in response to the perception data to provide command data, and adapt the simulation based on the command data. The camera system has a field of view and the monitor has a viewable area. The simulation of the driving scenario is scaled in proportion to a ratio of the field of view of the camera projected onto the monitor and dimensions of the viewable area.

Abstract: A method for controlling regeneration within an after-treatment component of a compression-ignition engine comprises calculating an initial estimate of accumulated particulate matter based on a pressure-based soot accumulation model and a pressure drop index indicative of a decrease in pressure across the component. An adjusted estimate of accumulated particulate matter in the component is calculated based on the initial estimate and a soot prediction error inherent in the soot model. The adjusted estimate is compared to a predetermined threshold associated with the after-treatment component, and a remedial action is initiated when the adjusted estimate of accumulated particulate matter in the after-treatment component exceeds the predetermined threshold. The pressure-based soot accumulation model may be configured to predict soot accumulation in the absence of passive regeneration, and an adjusted kinetic burn model may be used to estimate a quantity of soot disposed through passive regeneration.