| 缸内直喷汽油机高压喷油器驱动电路的设计 |
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| 引用本文： | 胡颖智,滕勤,刘井生. 缸内直喷汽油机高压喷油器驱动电路的设计[J]. 电子设计工程, 2011, 19(11): 139-141,144 |
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| 作者姓名： | 胡颖智 滕勤 刘井生 |
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| 作者单位： | 合肥工业大学机械与汽车工程学院,安教合肥,230009 |
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| 摘 要： | 为了实现缸内直喷汽油机(GDI)喷油量、喷油正时和喷油速率的精确控制,对喷油嚣驱动电路提出更高的要求.设计了一种GDI发动机喷油器驱动电路,该电路由BOOST升压、高端自举驱动和电流分段控制电路等模块组成,采用双电源供电,以硬件控制方式实现三段驱动反馈电流控制,节省了软件资源.实验表明,该电路可以有效减小喷油器的开启时...
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| 关 键 词： | 喷油器驱动电路 BOOST升压 高端自举驱动 电流分段控制 |
Development of a driver circuit for GDI high pressure injector |
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| HU Ying-zhi,TENG Qin,LIU Jing-sheng. Development of a driver circuit for GDI high pressure injector[J]. Electronic Design Engineering, 2011, 19(11): 139-141,144 |
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| Authors: | HU Ying-zhi TENG Qin LIU Jing-sheng |
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| Affiliation: | (School of Mechanical and Automotive Engineering,Hefei University of Technology,Hefei 230009,China) |
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| Abstract: | In order to precisely control the injection quantity,injection timing and injection rate of the GDI(Gasoline Direct Injection) engine,a higher requirement of the injector drive circuit should be achieved.A drive circuit for GDI injector was designed.The drive circuit was made up of a module of boost converter,a high side bootstrap driver and a current feedback circuit.Through double power supply,drive current sectionalized control in three stages was achieved by hardware control mode.The experiment results show that the circuit can efficiently reduce the opening or closing time of the injector,and meet the requirements for the injector drive performance. |
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| Keywords: | injector driver circuit BOOST converter high side bootstrap driver current sectionalized control |
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