发明名称 |
Vehicle electronic control using one A/D converter for time-synchronous and time-asynchronous A/D conversion |
摘要 |
Various sensor signals of an engine (1) are A/D-converted by an A/D converter (21) of a sub-microcomputer (20) by an A/D conversion request from a main microcomputer (10). The A/D conversion is executed a plurality of times within one packet for important parameters in the various sensor signals in the A/D conversion request timing per constant time with a longer time interval than a time required for the A/D conversion by an A/D conversion request timing asynchronous to the A/D conversion request. Thereby, normal ones among a plurality of A/D-converted values A/D-converted by the A/D conversion request of the main microcomputer (10) even if the preceding A/D conversion request is issued asynchronously to the A/D conversion request of the main microcomputer (10). <IMAGE> |
申请公布号 |
EP0894975(A3) |
申请公布日期 |
2000.04.05 |
申请号 |
EP19980111160 |
申请日期 |
1998.06.17 |
申请人 |
DENSO CORPORATION |
发明人 |
OGURO, HIROKAZU;TAMAKOSHI, TAKAYOSHI |
分类号 |
F02D45/00;F02P5/15 |
主分类号 |
F02D45/00 |
代理机构 |
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地址 |
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