天然气发动机喷气电磁阀驱动模块的研究与实现

来源 :第19届亚太汽车工程年会暨2017中国汽车工程学会年会 | 被引量 : 0次 | 上传用户：vbcasp

【摘要】

：

针对天然气发动机喷气电磁阀在低温环境下开启困难问题,设计了低成本,高可靠性的喷气电磁阀驱动模块.在对各个因素综合分析的基础上,采用单电源单边驱动方式,各个驱动通道相互独立,保持电流通过硬件脉宽调制(PWM)反馈控制,根据驱动电流上升速率实现喷气电磁阀驱动回路的故障诊断.在车辆冷起动工况时,喷气电磁阀驱动电流波形从正常驱动电流波形切换到冷起动驱动电流波形,通过提升驱动电流波形的峰值电流,提高喷气电磁

【作者】

：

隋建鹏孙鹏王莹刘鹏飞祝浩

【机构】

：

中国第一汽车集团公司技术中心

【出处】

：

第19届亚太汽车工程年会暨2017中国汽车工程学会年会

【发表日期】

：

2017年7期

【关键词】

：

汽车天然气发动机喷气电磁阀驱动模块冷起动故障诊断

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天然气发动机喷气电磁阀驱动模块的研究与实现

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