JB/T 13503-2018
发动机冷试方法
Engines——Cold test methods
2018-12-01 实施
2018-04-30 发布
目次
前言…………………………………………………………………………………………………………………………………………1
1范围 …………………………………………………………………………………………………………………………………………………1
2 术语和定义………………………………………………………………………………………………………………………………………………1
3 试验条件………………………………………………………………………………………………………………………………………………………1
4 试验项目………………………………………………………………………………………………………………………………………………………2
5 试验方法……………………………………………………………………………………………………………………………………………………3
5.1测试设备调整…………………………………………………………………………………………………………………………………………3
5.2 限定值设定试验………………………………………………………………………………………………………………………………………………….3
5.3 起动转矩试验……………………………………………………………………………………………………………………………………4
5.4 曲轴、凸轮正时试验……………………………………………………………………………………………………………4
5.5 机油压力试验………………………………………………………………………………………………………………………………4
5.6 VVT试验…………………………………………………………………………………………………………………………………………….5
5.7 NVH试验…………………………………………………………………………………………………………………………………………5
5.8 点火系统试验………………………………………………………………………………………………………………………………………5
5.9 进气真空度试验……………………………………………………………………………………………………………………………….5
5.10 运行转矩试验……………………………………………………………………………………………………………………………………5
5.11排气压力试验……………………………………………………………………………………………………………………….5
6 试验报告……………………………………………………………………………………………………………………………………………………………6
表1 冷试时发动机转速.…………………………………………………………………………………………………………………………….1
表2 测试设备精度要求……………………………………………………………………………………………………………………………….2
表3 发动机冷试项目………………………………………………………………………………………………………………………………………2
表4 控制上限和控制下限…………………………………………………………………………………………………………………………………………3