基本信息:
- 专利标题： SPARKPLUG HEALTH DETERMINATION IN ENGINE IGNITION SYSTEM
- 申请号：US15141206 申请日：2016-04-28
- 公开(公告)号：US20170314524A1 公开(公告)日：2017-11-02
- 发明人： William Hoban , Morteza Rezaei , Ioan Paduret , James Siegle
- 申请人： Caterpillar Inc.
- 申请人地址： US IL Peoria
- 专利权人： Caterpillar Inc.
- 当前专利权人： Caterpillar Inc.
- 当前专利权人地址： US IL Peoria
- 主分类号： F02P17/12
- IPC分类号： F02P17/12 ; F02P17/02
摘要：
An engine ignition system for a spark-ignited engine includes a sparkplug and a control system having primary ignition circuitry, secondary ignition circuitry coupled with electrodes of the sparkplug, and sensing circuitry. A control device determines a timing of spark production based on a pattern of varying of an electrical property in the primary ignition circuitry. An inflection point in a sensed current signal may be detected to determine the timing.
公开/授权文献:
- US10544773B2 Sparkplug health determination in engine ignition system 公开/授权日：2020-01-28
IPC结构图谱:
| F | 机械工程；照明；加热；武器；爆破 |
| --F02 | 燃烧发动机；热气或燃烧生成物的发动机装置 |
| ----F02P | 除压缩点火之外的内燃机点火；压缩点火发动机点火正时的测试 |
| ------F02P17/00 | 点火装置的测试，例如与调整联合进行的测试；压缩点火发动机点火正时的测试 |
| --------F02P17/12 | .测量火花特性、点火电压或电流其他点火 |