广西大学学报（自然科学版）
廣西大學學報（自然科學版）
엄서대학학보（자연과학판）
Journal of Guangxi University (Natural Science Edition)
2015年
5期
1146-1154
,共9页
小型汽油机%硬件电路%控制单元%性能
小型汽油機%硬件電路%控製單元%性能
소형기유궤%경건전로%공제단원%성능
small spark ignition engine%hardware ciruit%electronic control unit%performance
为实现通用小型汽油机电控化,进一步提高其动力性、经济性和排放性,开发了一套完整的控制单元。控制单元采用美国Freescale公司16位单片机MC9S12XEP100为主控芯片,结合MC33812控制芯片,完成微控制单元( MCU)模块、电源模块、输入调理模块、输出驱动模块、控制器局域网总线( CAN)通讯模块等硬件电路设计。并编写底层驱动程序,对喷油与点火信号进行测试并分析,以168F型汽油机为样机完成发动机性能试验。试验结果表明：通用小型汽油机采用电子控制单元后,标定功率较原机提高了7.6%,最低有效燃油消耗率较原机降低了7.9%,最大扭矩可高达11.15 N·m,较原机提高了2.3%。按美国环境保护署( EPA)小型非道路火花点火发动机排放法规进行排放性能试验,CO排放下降至259.18 g/(kW·h),HC+NOx下降至8.05 g/( kW·h)。电控样机排放满足EPA第Ⅲ阶段排放限值,控制单元满足设计要求。
為實現通用小型汽油機電控化,進一步提高其動力性、經濟性和排放性,開髮瞭一套完整的控製單元。控製單元採用美國Freescale公司16位單片機MC9S12XEP100為主控芯片,結閤MC33812控製芯片,完成微控製單元( MCU)模塊、電源模塊、輸入調理模塊、輸齣驅動模塊、控製器跼域網總線( CAN)通訊模塊等硬件電路設計。併編寫底層驅動程序,對噴油與點火信號進行測試併分析,以168F型汽油機為樣機完成髮動機性能試驗。試驗結果錶明：通用小型汽油機採用電子控製單元後,標定功率較原機提高瞭7.6%,最低有效燃油消耗率較原機降低瞭7.9%,最大扭矩可高達11.15 N·m,較原機提高瞭2.3%。按美國環境保護署( EPA)小型非道路火花點火髮動機排放法規進行排放性能試驗,CO排放下降至259.18 g/(kW·h),HC+NOx下降至8.05 g/( kW·h)。電控樣機排放滿足EPA第Ⅲ階段排放限值,控製單元滿足設計要求。
위실현통용소형기유궤전공화,진일보제고기동력성、경제성화배방성,개발료일투완정적공제단원。공제단원채용미국Freescale공사16위단편궤MC9S12XEP100위주공심편,결합MC33812공제심편,완성미공제단원( MCU)모괴、전원모괴、수입조리모괴、수출구동모괴、공제기국역망총선( CAN)통신모괴등경건전로설계。병편사저층구동정서,대분유여점화신호진행측시병분석,이168F형기유궤위양궤완성발동궤성능시험。시험결과표명：통용소형기유궤채용전자공제단원후,표정공솔교원궤제고료7.6%,최저유효연유소모솔교원궤강저료7.9%,최대뉴구가고체11.15 N·m,교원궤제고료2.3%。안미국배경보호서( EPA)소형비도로화화점화발동궤배방법규진행배방성능시험,CO배방하강지259.18 g/(kW·h),HC+NOx하강지8.05 g/( kW·h)。전공양궤배방만족EPA제Ⅲ계단배방한치,공제단원만족설계요구。
To control a small spark ignition( SI) engine electronically, an electronic control system was designed to reduce the emissions, improve its power and economy. By Using Freescales’ micro-controller MC9S12XEP100 and MC33812 controller chip, the electronic control unit(ECU)hardware circuit of microcontroller unit( MCU) control module, the power management module, the input ad-justment module, the output driver module and the controller area network ( CAN) communication module were designed. The board support package was written by C language. The fuel injection and ignition signals were tested and analyzed to complete the bench test by using an engine 168F. The test results showed that the rated power was increased by 7. 6%, the minimum effective fuel con-sumption was decreased by 7. 9% and the maximum torque of engine could reach to 11. 15 N·m, which was increased by 2. 3%. According to the United States Environmental Protection Agency ( EPA) regulation of the small non-road SI engine, the emission of CO was 259. 18 g/( kW·h) and the emission of HC+NOx was 8. 05 g/( kW·h) , both of which were decreased. The electronic con-trolled engine can meet the limitation of EPA phaseⅢstandards and the electronic controlled system was qualified.
