Method for controlling electronic compressor and electronic catalyst to reduce emissions from internal combustion engine

• Main Authors: YADLA, SUNIL, KUEHLER JON, MAGNARD, MICHEL
• Format: Patent
• Language: Chinese; English
• Published: 24.11.2023
• Subjects: BLASTING; ENGINE PLANTS IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; STEAM ENGINES; WEAPONS

In an internal combustion engine system having an emission control system including an electrically heated catalyst (E-cat) and an electronic compressor (a separate or part of an electronic turbocharger), a method for operating the emission control system includes predicting an imminent cold start of the engine, activating the E-cat and the electronic compressor in response to the prediction, and monitoring the characteristic parameter Pe of the E-cat during the change. While E-cat is activated, the electronic compressor speed Nc is adjusted to vary in proportion to the varying Pe. If no engine start occurs, the E-cat is deactivated and the speed Nc is adjusted to track the changing Pe. 在具有包括电加热催化器(E-cat)和电子压缩机(独立的或电子涡轮增压器的一部分)的排放控制系统的内燃机系统中，一种用于操作排放控制系统的方法包括预测发动机的冷启动即将发生，响应于预测激活E-cat和电子压缩机，以及在变化时监视E-cat的特征参数Pe。在E-cat被激活的同时，调节电子压缩机速度Nc以与变化的Pe成比例地变化。如果没有发动机启动发生，则E-cat被解激活，并且速度Nc被调节以跟踪变化的Pe。