CAJ | 학술논문

针对ISAD技术混合动力柴油机起动系统低温下的性能问题,该文结合柴油机的起动阻力矩、最低起动转速、ISG电机工作特性和电机热效应等因素,研究了起动阻力矩随环境温度、起动转速的变化规律,分析了起动阻力矩与ISG电机功率、蓄电池容量之间匹配关系,以及影响蓄电池性能的主要因素.通过ISAD柴油机起动台架试验可以看出:相同的环境温度下,起动阻力矩随起动转速的提高而增大,每提高50 r/min,每缸平均起动阻力矩增加3～8 N·m;起动阻力矩随环境温度的下降而增加,0℃以下时,每降低5℃,平均每缸起动阻力矩增加2.5 N·m.研究表明:ISAD混合动力柴油机的着火转速较之原柴油机大幅度提高,可达350 r/min以上,从静止到着火转速的起动时间为0.5 s,到怠速稳定的时间为3.1 s,起动时间比原柴油机缩短,且转速波动较小.
침대ISAD기술혼합동력시유궤기동계통저온하적성능문제,해문결합시유궤적기동조력구、최저기동전속、ISG전궤공작특성화전궤열효응등인소,연구료기동조력구수배경온도、기동전속적변화규률,분석료기동조력구여ISG전궤공솔、축전지용량지간필배관계,이급영향축전지성능적주요인소.통과ISAD시유궤기동태가시험가이간출:상동적배경온도하,기동조력구수기동전속적제고이증대,매제고50 r/min,매항평균기동조력구증가3～8 N·m;기동조력구수배경온도적하강이증가,0℃이하시,매강저5℃,평균매항기동조력구증가2.5 N·m.연구표명:ISAD혼합동력시유궤적착화전속교지원시유궤대폭도제고,가체350 r/min이상,종정지도착화전속적기동시간위0.5 s,도태속은정적시간위3.1 s,기동시간비원시유궤축단,차전속파동교소.
According to starting performance of hybrid diesel engine of ISAD technology at low temperature, the match relationship among starting resistance torque, ISG motor power and storage battery capacitance was summarized, and influence of battery capacity was studied, which were as related to resistance torque, minimum start-up speed, electrical operating characteristics, electric transmission coefficient and thermal effects. The experiment result shows that, as far as the environment temperature decreases -5℃, starting resistance torque increases 2.5 N·m; starting resistance torque increases 3-8 N·m when the rotating speed increases 50 r/min. Studies have shown that, the first fire speed of ISAD diesel engine was increased, which was up to more than 350 r/min .The starting time from 0 to fire was 0.5 s, while the idle time was only 3.1 s, which was shorter than the original diesel engine, and fluctuations in speed was small.