移动液压测功机MoHyD的应用

Mobile Hydraulic Dynamometer (MoHyD)CRC, San DiegoMarch 13, 2024Axel Freund, John O’Cain& Elena FloreaAgenda•MoHyD•Background•What is MoHyD?•General Specifications•Testing with MoHyD•Equipment Tested•Test Data •Current & Future Plans•Alternative Test Method •Next Steps2MoHyD3BackgroundIn-field testing -PEMSEngine dyno testing –lab analyzersAvailable testing options for in-use emission measurement4What is MoHyD?•MoHyDis a standalone instrument that connects to the hydraulic system of the off-road equipment•Capable of loading and operating the engines without removing the engines from the equipment •Can mimic the operation of an engine dynamometer over various cycles: Non-Road Transit Cycles (NRTC) and Ramped Modal Cycles (RMC)In-field testingMoHyDalternative to engine dyno Engine dyno testing5Typical MoHyD Set UpMoHyDElectrical ConnectionsHose ConnectionsTest EquipmentHydraulic Oil Cooler6General Specifications•Closed/open looped valve system•Electric control system•Additional hydraulic