| 摘要:基于车用涡轮增压器瞬态响应的影响因素，提出独立于内燃机的车用涡轮增压器瞬态响应评估指标。通过数值模拟和试验的方法研究在不同终了转速下随不同初始压比的变化以及转子转动惯量、涡轮效率和压气机效率对影响。研究结果表明：试验结果与仿真结果吻合较好，证明该测试方法可用于涡轮增压器的瞬态性能测试以及增压器瞬态性能的影响因素研究。使用误差传播理论对试验测得的瞬态响应评估参数值进行系统误差估计，试验测得的系统不确定度为1.35%。 |
| 关键词: 涡轮增压器 瞬态响应 测试方法 评价指标 误差分析 |
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| Evaluation and Testing of Transient Response for Automotive Turbochargers |
| WANG Zhihui,WANG Hongbo,BI Jinguang |
| School of Mechanical Engineering,Tianjin University,Tianjin 300072,China;Ningbo Weifu Tianli Turbocharging Technology Co., Ltd., Ningbo 315000, China |
| Abstract:The influencing factors of transient response of automotive turbocharger were expounded，and the evaluation index of transient response of the turbocharger independent of engine was proposed.The change of different initial pressure ratio at different ending speeds and the influence of rotor inertia，turbine efficiency and compressor efficiency on were studied by numerical simulation and experiment.The results show that the test results are in good agreement with the simulation results.It is proved that this test method can be used for transient performance test of turbochargers and research on influencing factors of turbocharger transient performance.The error propagation theory was used to estimate the system error of the measured transient response evaluation parameters .The system uncertainty obtained by test is 1.35%. |
| Key words: turbocharger transient response measuring method evaluation index error analysis |
