宋秦中;王勇;
1:苏州市职业大学电子信息工程系
2:大连理工大学内燃机研究所
摘要：喷油正时和喷油量控制精度除了和喷油器电磁阀本身的特性参数有关外,还与其驱动电路的设计有关。对电磁阀的功率驱动是决定其响应时间的关键因素,设计的驱动模块采用高电压、大电流来对电磁阀的开启加以控制,随后采用低电压、小电流的PWM波维持导通,满足了高压共轨喷油器电磁阀驱动的要求。
关键词： 共轨;;电磁阀;;驱动;;PWM
Abstract: To control injection timing and
injection quantity precisely,it not only depends on the related characteristic
parameter of common rail diesel solenoid valve,but also concerns with its
design of driving circuit.To the solenoid valve response time,the key aspect is
to design power driving model,which is designed with high voltage,strong
current to control opening of solenoid and the then is conducted with low
voltage,low current PWM.The experiment showed that the model is satisfied with
the requirements of driving of solenoid valve for common rail oil injector.
Keywords:Common Rail;Solenoid Valve;Drive;PWM
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