发明名称 |
Efficient wave form to control fuel system |
摘要 |
An efficient control wave form is utilized to actuate the solenoids of a fuel system to reduce boost power/energy consumption. The solenoid is initially energized by applying a boost voltage from an electronic controller across a solenoid coil circuit. The electronic controller monitors the current level in the solenoid coil circuit, and changes to a reduced battery voltage when the current level in the solenoid coil circuit reaches a predetermined trigger current. The controller then maintains a pull-in current based upon battery voltage for a pull-in duration that initiates movement of the solenoid armature from an initial air gap position toward a final air gap position. After the pull-in duration, the current level is dropped to a hold in level for the remaining duration of the actuation event. The solenoid may be used for fuel injector control and/or pump control, such as to control fuel injection and pumping events respectively. |
申请公布号 |
US8214132(B2) |
申请公布日期 |
2012.07.03 |
申请号 |
US20100884798 |
申请日期 |
2010.09.17 |
申请人 |
BUNNI NADEEM;PUCKETT DANIEL R.;VENKATARAGHAVAN JAY;LEWIS STEPHEN R.;MOORE ANGELA L.;CATERPILLAR INC. |
发明人 |
BUNNI NADEEM;PUCKETT DANIEL R.;VENKATARAGHAVAN JAY;LEWIS STEPHEN R.;MOORE ANGELA L. |
分类号 |
F02D41/26 |
主分类号 |
F02D41/26 |
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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