发明名称 |
Circuit for energizing a fuel injector valve coil |
摘要 |
A circuit for energizing a fuel injector valve coil in response to a fuel injection pulse including a storage capacitor which is charged from a relatively high voltage source and which is discharged through the fuel injector valve coil through a controlled rectifier gated conductive upon the initiation of a fuel injection pulse signal. The charging circuit for the capacitor is disabled upon initiation of capacitor discharge for a time period at least greater than the time for the capacitor discharge current to decrease to a value to effect commutation of the controlled rectifier after which capacitor charging is reinitiated. A holding circuit is provided for holding the fuel injector valve coil energized for the duration of the fuel injection pulse signal.
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申请公布号 |
US4112477(A) |
申请公布日期 |
1978.09.05 |
申请号 |
US19770803744 |
申请日期 |
1977.06.06 |
申请人 |
GENERAL MOTORS CORPORATION |
发明人 |
SHERWIN, WALTER M. |
分类号 |
F02D41/20;F02D41/32;H01F7/18;H01H47/32;H03K3/57;(IPC1-7):H01H47/32 |
主分类号 |
F02D41/20 |
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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