发明名称 |
Heater control apparatus for a gas concentration sensor |
摘要 |
An air-fuel ratio sensor is equipped with a sensing element including a solid electrolytic substrate. When the sending element is warmed up and activated by a heater, a microcomputer controls electric power supplied to the heater based on a control base value being set according to a duty ratio=100%. A power profile P1 is determined beforehand to set a target heater power. Through the warm-up heater power control, an actual heater power supplied to the heater is equalized to the target heater power determined according to the power profile P1.
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申请公布号 |
US2002078938(A1) |
申请公布日期 |
2002.06.27 |
申请号 |
US20010026801 |
申请日期 |
2001.12.27 |
申请人 |
HADA SATOSHI;KUROKAWA EIICHI;SUZUKI TOSHIYUKI |
发明人 |
HADA SATOSHI;KUROKAWA EIICHI;SUZUKI TOSHIYUKI |
分类号 |
G01N27/41;F02D41/14;G01N27/416;(IPC1-7):F02D41/00 |
主分类号 |
G01N27/41 |
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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