System for diesel particulate reduction and method for maintaining minimum exhaust temperature for diesel oxidation catalyst

• Main Authors: GOODSELL, JAMES, BAUMGARDNER GRANT A, CAREY ADAM B
• Format: Patent
• Language: Chinese; English
• Published: 29.08.2023
• Subjects: BLASTING; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; CONTROLLING COMBUSTION ENGINES; 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; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; STEAM ENGINES; WEAPONS

Systems and methods are provided for using a diesel particulate filter (DPF) heater as a load bank to maintain a minimum exhaust temperature for a diesel oxidation catalyst (DOC) paired with a prime mover. The system includes a prime mover coupled with a generator, a compressor powered by the prime mover, a DOC disposed downstream of the prime mover, and a controller. The prime mover is decoupled from other prime movers used to operate the vehicle. The controller is configured to determine a load of the generator, determine a load of the compressor, determine a load of the prime mover based on the determined load of the generator and the determined load of the compressor, and control the load of the prime mover to maintain a minimum exhaust temperature for the DOC. 提供了用于使用柴油颗粒过滤器(DPF)加热器作为负载组以维持针对与原动机配对的柴油氧化催化器(DOC)的最小排气温度的系统和方法。该系统包括：与发电机耦合的原动机，由原动机供能的压缩机，设置在原动机下游的DOC，以及控制器。原动机与用于操作车辆的其它原动机分离。控制器被配置成，确定发电机的负载，确定压缩机的负载，基于所确定的发电机的负载和所确定的压缩机的负载来确定原动机的负载，以及控制原动机的负载以维持针对DOC的最小排气温度。