Steinieini wrote:
Shii að lesa um tæknina sem BMW eru farnir að nota í þessum bílum er frekar farið að minna á kerfi í stórum flugvélum en bíla
Varstu búinn að lesa um hvaða tækni þeir nota til að cancelera Bank skynjurum?.
Quote:
After three years spent on research and development, BMW makes its first introduction of a combustion charge ion analysis system first to be implemented on the S85. Similar to Saab's system of the 90's and based on theories developed in the 30's, this ion analysis takes the place of a conventional knock sensor by monitoring the combustion event and combustions pressures for each cylinder. Using the spark plug as a positive pole and the cylinder as a ground, the ion current system measures the conductance of the air fuel charge throughout the combustion process. As combustion takes place and the charge chemistry changes, so does the electrical conductance of the contents of the cylinder. Based on the conductance as a function of crank angle, each individual combustion event is evaluated to better refine and control the sequential fuel and spark maps on a per cylinder basis. This is basically like a very smart version of an automotive oscilloscope. Unlike previous attempts of combustion ion charge analysis, the BMW system also discerns misfires either from inadequate fuel or spark, something neither Saab's system or a knock sensor can do.
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http://www.europeancarweb.com/features/0501ec_e60_m5_engine/index.html
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