基本信息
| 标准名称： | 在用汽车压缩天然气专用装置检验规范 |
| 发布部门： | 四川省质量技术监督局 |
| 发布日期： | 2009-03-05 |
| 实施日期： | 2009-03-10 |
| 首发日期： | |
| 作废日期： | |
| 出版社： | 中国标准出版社 |
| 出版日期： | 2009-03-10 |
适用范围
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前言
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目录
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引用标准
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所属分类： 综合 经济 文化 商业 贸易 合同 社会学 服务 公司(企业)的组织和管理 行政 运输 服务 消费者服务
Product Code:SAE J2429
Title:Free-Rolling Cornering Test for Truck and Bus Tires
Issuing Committee:Truck And Bus Tire Committee
Scope: This SAE Recommended Practice describes a test method for determination of steady-state heavy truck (Class VI, VII, and VIII) tire force and moment properties under free-rolling conditions. The properties are acquired as functions of incrementally changed slip angle and normal force using a sequence specified in this document. The data are suitable for use in vehicle dynamics modeling, comparative evaluations for research and development purposes, and manufacturing quality control.Truck Tires-For the purposes of this document, truck tires are defined as being the tires mounted on all heavy commercial over-the-road trucks and buses. Examples of vehicles which use heavy truck tires include: tractor/semi-trailer combinations, dump trucks, school buses, etc. Tires mounted on other types of lighter GVWR vehicles are explicitly excluded from consideration in this document.Effects Not Considered-The effects of inclination angle and spindle torque or any combination of inclination and spindle torque with slip angle and normal force are not considered in this document.Test Machines-This document is test machine neutral. It may be applied using any type of test machine capable of fulfilling the requirements stated in this document. By way of example, specific data used in support of various parts of this document came from both an indoor flat-belt type machine and outdoor over-the-road dynamometer. This document does not require a machine to match the ideal machine, but does require that a test machine?s performance be fully defined over its range of application. In this document, an ideal is a goal not a requirement.Ideal MachineAn ideal machine is a machine which is capable of fully matching every item in this document. Such a machine neither exits at the time this document was written nor is it certain that the technology to build such a machine exists at this time.
Rationale: This SAE Recommended Practice describes a test method for determination of steady-state heavy truck (Class VI, VII, and VIII) tire force and moment properties under free-rolling conditions. The properties are acquired as functions of incrementally changed slip angle and normal force using a sequence specified in this document. The data are suitable for use in vehicle dynamics modeling, comparative evaluations for research and development purposes, and manufacturing quality control.Truck Tires-For the purposes of this document, truck tires are defined as being the tires mounted on all heavy commercial over-the-road trucks and buses. Examples of vehicles which use heavy truck tires include: tractor/semi-trailer combinations, dump trucks, school buses, etc. Tires mounted on other types of lighter GVWR vehicles are explicitly excluded from consideration in this document.Effects Not Considered-The effects of inclination angle and spindle torque or any combination of inclination and spindle torque with slip angle and normal force are not considered in this document.Test Machines-This document is test machine neutral. It may be applied using any type of test machine capable of fulfilling the requirements stated in this document. By way of example, specific data used in support of various parts of this document came from both an indoor flat-belt type machine and outdoor over-the-road dynamometer. This document does not require a machine to match the ideal machine, but does require that a test machine?s performance be fully defined over its range of application. In this document, an ideal is a goal not a requirement.Ideal MachineAn ideal machine is a machine which is capable of fully matching every item in this document. Such a machine neither exits at the time this document was written nor is it certain that the technology to build such a machine exists at this time.