发明申请
- 专利标题: Efficient Wave Form To Control Fuel System
- 专利标题(中): 有效波形控制燃油系统
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申请号: US12884798申请日: 2010-09-17
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公开(公告)号: US20120067329A1公开(公告)日: 2012-03-22
- 发明人: Nadeem Bunni , Daniel R. Puckett , Jay Venkataraghavan , Stephen R. Lewis , Angela L. Moore
- 申请人: Nadeem Bunni , Daniel R. Puckett , Jay Venkataraghavan , Stephen R. Lewis , Angela L. Moore
- 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: F02M51/00
- IPC分类号: F02M51/00
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.
公开/授权文献
- US08214132B2 Efficient wave form to control fuel system 公开/授权日:2012-07-03
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