摘要
为提高大功率柴油发动机动力输出,改善现有废气涡轮增压器存在的增压迟滞现象,在不改变原有增压器机构的前提下开发了一种新型补偿装置,该装置只需在原增压器进气管增加一高速电磁阀、一独立高压储气罐和控制系统。将该装置安装到车辆上进行了实车验证,动力性试验结果表明,该补偿器可以将发动机达到最大转矩点的时间由原来的8 s缩短到3 s,可以明显提升车辆起步时的动力性能;燃油经济性试验表明,在某企业油耗测试工况条件下,使用增压补偿器时百公里油耗可降低3.4%,明显改善车辆的燃油经济性。
In order to improve the performance of heavy duty diesel engine and the turbo lag of exhaust-driven turbocharger, a turbo lag compensator （TLS） system is designed. The system is composed of a high speed electromagnetic valve, a high pressure air tank and a controller. The system is also validated using real road experiment test based on the assembly and installation of the TLS. It is found from the vehicle acceleration test that the time of reaching the maximum torque is decreased to 3 s compared with the original 8 s, which means the vehicle acceleration performance can be improved with the TLS system. And the fuel economy tests show that the fuel consumption per 100 km can be reduced 3.4% with the TLS system measured at a specific vehicle simulation operating mode, which indicates that the vehicle fuel economy can be improved with the proposed TLS system.
出处
《机械科学与技术》
CSCD
北大核心
2017年第6期950-954,共5页
Mechanical Science and Technology for Aerospace Engineering
基金
河南省高等学校青年骨干教师项目(2014GGJS-120)
河南省教育技术装备和实践教育研究项目(201518)
河南工程学院动力机械与车辆工程研究所项目(003)资助
