Invention Grant
US08499550B2 Apparatus, system, and method for controlling particulate accumulation on an engine filter during engine idling 有权
用于在发动机怠速期间控制发动机过滤器上的颗粒物积聚的装置,系统和方法

Apparatus, system, and method for controlling particulate accumulation on an engine filter during engine idling
Abstract:
According to one representative embodiment, an apparatus disclosed herein includes a regeneration event timing module, an engine speed module, an exhaust gas temperature module, and a thermal management module. The regeneration event timing module is configured to determine a regeneration event timing strategy for implementation during extended idling of the engine. The regeneration event timing strategy includes a first time period and a second time period following the first time period. The engine speed module is configured to determine a desired engine speed for the second time period and operate the engine at the desired engine speed during the second time period. The desired engine speed is greater than an idling engine speed associated with the first time period. The exhaust gas temperature module is configured to determine a desired particulate matter filter inlet exhaust gas temperature. The desired particulate matter filter inlet exhaust gas temperature corresponds to a particulate matter filter temperature for achieving a noxidation regeneration of particulate matter on the particulate matter filter. The thermal management module is configured to modulate at least one engine system component to achieve the desired particulate matter filter inlet exhaust gas temperature during the second time period.
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