与卡车和公共汽车发动机附件的循环工作和平均功率要求有关的信息

[中文适用范围]： 本报告的目的是提供可用于获取卡车和客车发动机配件每个工作周期的平均功率的信息。本信息报告涵盖的配件包括：空气制动压缩机、交流发电机、空调压缩机、发动机冷却风扇和驱动器以及动力转向泵。这些值显示了这些发动机驱动附件已知工作循环的平均功率要求的估计值。本报告不涉及发动机运行所需的负载。所需的系统包括发动机性能所需的系统，例如燃油泵和电子控制模块 (ECM)。 [外文原描述]： This report is intended to provide the information to estimate the accessory load of a typical heavy truck or bus. The components covered include: air compressors, alternators, refrigerant compressors, engine cooling fans and power steering pumps. The values show an estimate of the average power requirements and duty cycles for these accessories.This report does not address loads required for engine operation. Required systems include those needed for engine performance such as fuel pumps and electronic control modules (ECM).Cross Reference: J1339_201504,J1341_202305