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Product Code:SAE J2453
Title:Manual Transmission and Transaxle Efficiency and Parasitic Loss Measurement (STABILIZED Sep 2011)
Issuing Committee:Sae Ic Powertrain Steering Committee
Scope:Because of the intense focus on CAFE and fuel emission standards, optimization of the automobile drivetrain is imperative. In light of this, component efficiencies have become an important factor in the drivetrain decision-making process. It has therefore become necessary to develop a universal standard to judge transmission efficiency.This SAE Recommended Practice specifies the dynamometer test procedure which maps a manual transmission's efficiency. The document is separated into two parts. The first compares input and output torque throughout a specified input speed range in order to determine 'in-gear' transmission efficiency. The second procedure measures parasitic losses experienced while in neutral at nominal idling speeds and also churning losses while in gear.The application of this document is intended for passenger car and light truck.All references to transmissions throughout this document include transaxles.【英文标准名称】:Eurocode3:designofsteelstructures-Part1-11:designofstructureswithtensioncomponents.
【原文标准名称】:欧洲法规3:钢结构的设计.第1-11部分:带拉紧构件的结构设计
【标准号】:NFP22-381-2007
【标准状态】:现行
【国别】:法国
【发布日期】:2007-04-01
【实施或试行日期】:2007-04-20
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:桥;构件;建筑;控制;防腐蚀;定义;设计;尺寸选定;耐久性;效应;架设(施工作业);欧洲法规;紧固件;疲劳;材料的疲劳;适用性;荷载能力;制造;材料;数学计算;金属材料;弹性模量;规划;绳索;安全要求;规范(验收);钢结构;材料强度;结构钢工程;结构钢;建筑物;受拉构件
【英文主题词】:Bridges;Components;Construction;Controlling;Corrosionprotection;Definitions;Design;Dimensioning;Durability;Effects;Erecting(constructionoperation);Eurocode;Fasteners;Fatigue;Fatigueofmaterials;Fitnessforpurpose;Loadcapacity;Manufacturing;Materials;Mathematicalcalculations;Metallicmaterials;Modulusofelasticity;Planning;Ropes;Safetyrequirements;Specification(approval);Steelconstruction;Strengthofmaterials;Structuralsteelwork;Structuralsteels;Structures;Tensionmembers
【摘要】:
【中国标准分类号】:P26
【国际标准分类号】:91_010_30;91_080_10;93_040
【页数】:42P.;A4
【正文语种】:其他