发明名称 |
Fuel injector and its control method |
摘要 |
<p>There is the problem that when voltage changes occur in the battery used as a power supply, the amount of fuel injection also changes and the required amount of fuel injected cannot be obtained. The present invention provides: a fuel injector by which the desired amount of fuel injection can be obtained even when power voltage changes occur; and a control method of controlling the fuel injector. To provide a fuel injector comprising a fuel injection valve, a power supply 103, a power voltage detection means 108, and a control unit 102 for controlling the fuel injection valve; wherein a reference value of a power voltage is set and the above-mentioned fuel injection valve is controlled so as to obtain the required ampere-turns by reducing the resultant inductance of the coil when a power voltage detection value is less than the above-mentioned reference value, and increasing the resultant inductance of the coil when the power voltage detection value is greater than the reference value.</p> |
申请公布号 |
EP1522699(A2) |
申请公布日期 |
2005.04.13 |
申请号 |
EP20040000991 |
申请日期 |
2004.01.19 |
申请人 |
HITACHI, LTD. |
发明人 |
MAEKAWA, NORIYUKI;ABE, MOTOYUKI;YAMAKADO, MAKOTO;ISHIKAWA, TORU;SHIBATA, KOOJI |
分类号 |
F02M51/00;F02D41/20;F02M51/06;(IPC1-7):F02D41/20 |
主分类号 |
F02M51/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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