A concrete example of fuzzy logic

I remember reading a book about fuzzy logic and 开发者_运维问答how it was being used in devices like washing machines. I haven't yet encountered a concrete example of this in code though. Do you know of any?

I recommend "The Fuzzy Systems Handbook", by Earl Cox. Though I have not used the included source code, the book explains both the application of fuzzy logic and the programming mechanics behind it. Several examples are presented which are from real world solutions.