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一汽大众高尔夫/宝来电脑板维修

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发表于 2008-1-16 22:12:59 | 显示全部楼层 |阅读模式
<table class="t_table" cellspacing="0" width="98%" align="center"><tbody><tr><td><p align="center"></p><p align="center"><font style="font-size:10pt"><font face="Times New Roman ">1</font></font><font face="宋体 "><font style="font-size:10pt">.点火及喷油电路的工作原理</font></font><font face="宋体 "><font style="font-size:10pt"></font></font></p><p></p><p align="center"></p><p align="center"><font face="宋体 "><font style="font-size:10pt">详解:由</font></font><font style="font-size:10pt"><font face="Times New Roman ">IN82</font></font><font face="宋体 "><font style="font-size:10pt">、</font></font><font style="font-size:10pt"><font face="Times New Roman ">IN90</font></font><font face="宋体 "><font style="font-size:10pt">进来的转速信号(正弦波)送到</font></font><font style="font-size:10pt"><font face="Times New Roman ">30343</font></font><font face="宋体 "><font style="font-size:10pt">进行处理,而后由</font></font><font style="font-size:10pt"><font face="Times New Roman ">30343</font></font><font face="宋体 "><font style="font-size:10pt">的</font></font><font style="font-size:10pt"><font face="Times New Roman ">34#</font></font><font face="宋体 "><font style="font-size:10pt">输出到</font></font><font style="font-size:10pt"><font face="Times New Roman ">CPU</font></font><font face="宋体 "><font style="font-size:10pt">的</font></font><font style="font-size:10pt"><font face="Times New Roman ">64#</font></font><font face="宋体 "><font style="font-size:10pt">、</font></font><font style="font-size:10pt"><font face="Times New Roman ">65#</font></font><font face="宋体 "><font style="font-size:10pt">;由</font></font><font style="font-size:10pt"><font face="Times New Roman ">IN86</font></font><font face="宋体 "><font style="font-size:10pt">进来的霍尔传感器信号(方波),送至</font></font><font style="font-size:10pt"><font face="Times New Roman ">CPU</font></font><font face="宋体 "><font style="font-size:10pt">的</font></font><font style="font-size:10pt"><font face="Times New Roman ">57#</font></font><font face="宋体 "><font style="font-size:10pt">;</font></font><font style="font-size:10pt"><font face="Times New Roman ">CPU</font></font><font face="宋体 "><font style="font-size:10pt">对由</font></font><font style="font-size:10pt"><font face="Times New Roman ">30343</font></font><font face="宋体 "><font style="font-size:10pt">输出到的</font></font><font style="font-size:10pt"><font face="Times New Roman ">64#</font></font><font face="宋体 "><font style="font-size:10pt">、</font></font><font style="font-size:10pt"><font face="Times New Roman ">65#</font></font><font face="宋体 "><font style="font-size:10pt">及由霍尔传感器进来的</font></font><font style="font-size:10pt"><font face="Times New Roman ">57#</font></font><font face="宋体 "><font style="font-size:10pt">的信号进行分析(比较判断)</font></font><font face="Times New Roman "><font face="宋体 "><font style="font-size:10pt">.</font></font><font face="宋体 "><font style="font-size:10pt"></font></font></font></p><p></p><p align="center"></p><p align="center"><font style="font-size:10pt"><font face="Times New Roman ">A.</font></font><font face="宋体 "><font style="font-size:10pt">喷油部分:由</font></font><font style="font-size:10pt"><font face="Times New Roman ">CPU</font></font><font face="宋体 "><font style="font-size:10pt">根据</font></font><font style="font-size:10pt"><font face="Times New Roman ">64#</font></font><font face="宋体 "><font style="font-size:10pt">、</font></font><font style="font-size:10pt"><font face="Times New Roman ">65#</font></font><font face="宋体 "><font style="font-size:10pt">、</font></font><font style="font-size:10pt"><font face="Times New Roman ">57#</font></font><font face="宋体 "><font style="font-size:10pt">输入的信号以及各传感器输入的信号进行分析计算后,在</font></font><font style="font-size:10pt"><font face="Times New Roman ">CPU</font></font><font face="宋体 "><font style="font-size:10pt">的</font></font><font style="font-size:10pt"><font face="Times New Roman ">16#</font></font><font face="宋体 "><font style="font-size:10pt">、</font></font><font style="font-size:10pt"><font face="Times New Roman ">23#</font></font><font face="宋体 "><font style="font-size:10pt">、</font></font><font style="font-size:10pt"><font face="Times New Roman ">24#</font></font><font face="宋体 "><font style="font-size:10pt">、</font></font><font style="font-size:10pt"><font face="Times New Roman ">25#</font></font><font face="宋体 "><font style="font-size:10pt">输出四路喷油信号送到</font></font><font style="font-size:10pt"><font face="Times New Roman ">30344</font></font><font face="宋体 "><font style="font-size:10pt">(此芯片应为低侧开关)进行放大处理,处理后由</font></font><font style="font-size:10pt"><font face="Times New Roman ">30344</font></font><font face="宋体 "><font style="font-size:10pt">的</font></font><font style="font-size:10pt"><font face="Times New Roman ">6#</font></font><font face="宋体 "><font style="font-size:10pt">和</font></font><font style="font-size:10pt"><font face="Times New Roman ">7#</font></font><font face="宋体 "><font style="font-size:10pt">;</font></font><font style="font-size:10pt"><font face="Times New Roman ">33#</font></font><font face="宋体 "><font style="font-size:10pt">和</font></font><font style="font-size:10pt"><font face="Times New Roman ">34#</font></font><font face="宋体 "><font style="font-size:10pt">;</font></font><font style="font-size:10pt"><font face="Times New Roman ">46#</font></font><font face="宋体 "><font style="font-size:10pt">和</font></font><font style="font-size:10pt"><font face="Times New Roman ">47#</font></font><font face="宋体 "><font style="font-size:10pt">;</font></font><font style="font-size:10pt"><font face="Times New Roman ">50#</font></font><font face="宋体 "><font style="font-size:10pt">、</font></font><font style="font-size:10pt"><font face="Times New Roman ">51#</font></font><font face="宋体 "><font style="font-size:10pt">和</font></font><font style="font-size:10pt"><font face="Times New Roman ">52#</font></font><font face="宋体 "><font style="font-size:10pt">输出四路喷油信号通过电脑接脚</font></font><font style="font-size:10pt"><font face="Times New Roman ">IN88</font></font><font face="宋体 "><font style="font-size:10pt">、</font></font><font style="font-size:10pt"><font face="Times New Roman ">IN89</font></font><font face="宋体 "><font style="font-size:10pt">、</font></font><font style="font-size:10pt"><font face="Times New Roman ">IN96</font></font><font face="宋体 "><font style="font-size:10pt">、</font></font><font style="font-size:10pt"><font face="Times New Roman ">IN97</font></font><font face="宋体 "><font style="font-size:10pt">送到喷油嘴控制喷油。</font></font><font face="宋体 "><font style="font-size:10pt"></font></font></p><p></p><p align="center"></p><p align="center"><font style="font-size:10pt"><font face="Times New Roman ">B.</font></font><font face="宋体 "><font style="font-size:10pt">点火部分:由</font></font><font style="font-size:10pt"><font face="Times New Roman ">CPU</font></font><font face="宋体 "><font style="font-size:10pt">根据</font></font><font style="font-size:10pt"><font face="Times New Roman ">64#</font></font><font face="宋体 "><font style="font-size:10pt">、</font></font><font style="font-size:10pt"><font face="Times New Roman ">65#</font></font><font face="宋体 "><font style="font-size:10pt">、</font></font><font style="font-size:10pt"><font face="Times New Roman ">57#</font></font><font face="宋体 "><font style="font-size:10pt">的输入的信号以及个传感器输入的信号进行分析计算后,在</font></font><font style="font-size:10pt"><font face="Times New Roman ">CPU</font></font><font face="宋体 "><font style="font-size:10pt">的</font></font><font style="font-size:10pt"><font face="Times New Roman ">47#</font></font><font face="宋体 "><font style="font-size:10pt">、</font></font><font style="font-size:10pt"><font face="Times New Roman ">48#</font></font><font face="宋体 "><font style="font-size:10pt">、</font></font><font style="font-size:10pt"><font face="Times New Roman ">49#</font></font><font face="宋体 "><font style="font-size:10pt">、</font></font><font style="font-size:10pt"><font face="Times New Roman ">50#</font></font><font face="宋体 "><font style="font-size:10pt">输出点火信号送到</font></font><font style="font-size:10pt"><font face="Times New Roman ">30397</font></font><font face="宋体 "><font style="font-size:10pt">的</font></font><font style="font-size:10pt"><font face="Times New Roman ">18#</font></font><font face="宋体 "><font style="font-size:10pt">、</font></font><font style="font-size:10pt"><font face="Times New Roman ">17#</font></font><font face="宋体 "><font style="font-size:10pt">、</font></font><font style="font-size:10pt"><font face="Times New Roman ">16#</font></font><font face="宋体 "><font style="font-size:10pt">、</font></font><font style="font-size:10pt"><font face="Times New Roman ">15#</font></font><font face="宋体 "><font style="font-size:10pt">进行处理,处理后由</font></font><font style="font-size:10pt"><font face="Times New Roman ">30397</font></font><font face="宋体 "><font style="font-size:10pt">的</font></font><font style="font-size:10pt"><font face="Times New Roman ">3#</font></font><font face="宋体 "><font style="font-size:10pt">、</font></font><font style="font-size:10pt"><font face="Times New Roman ">4#</font></font><font face="宋体 "><font style="font-size:10pt">、</font></font><font style="font-size:10pt"><font face="Times New Roman ">5#</font></font><font face="宋体 "><font style="font-size:10pt">、</font></font><font style="font-size:10pt"><font face="Times New Roman ">6#</font></font><font face="宋体 "><font style="font-size:10pt">输出点火脉冲信号通过电脑接脚</font></font><font style="font-size:10pt"><font face="Times New Roman ">IN94</font></font><font face="宋体 "><font style="font-size:10pt">、</font></font><font style="font-size:10pt"><font face="Times New Roman ">IN95</font></font><font face="宋体 "><font style="font-size:10pt">、</font></font><font style="font-size:10pt"><font face="Times New Roman ">IN102</font></font><font face="宋体 "><font style="font-size:10pt">、</font></font><font style="font-size:10pt"><font face="Times New Roman ">PIN103</font></font><font face="宋体 "><font style="font-size:10pt">到点火器控制点火。注:如果是双缸点火的点火信号只从</font></font><font style="font-size:10pt"><font face="Times New Roman ">PIN102</font></font><font face="宋体 "><font style="font-size:10pt">、</font></font><font style="font-size:10pt"><font face="Times New Roman ">PIN103</font></font><font face="宋体 "><font style="font-size:10pt">输出,而</font></font><font style="font-size:10pt"><font face="Times New Roman ">PIN94</font></font><font face="宋体 "><font style="font-size:10pt">、</font></font><font style="font-size:10pt"><font face="Times New Roman ">PIN95</font></font><font face="宋体 "><font style="font-size:10pt">为空脚。</font></font><font face="宋体 "><font style="font-size:10pt"></font></font></p><p></p></td></tr></tbody></table><br />
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