MediaWiki API result
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"*": "<tr><td colspan=\"2\" class=\"diff-lineno\" id=\"mw-diff-left-l1\" >Line 1:</td>\n<td colspan=\"2\" class=\"diff-lineno\">Line 1:</td></tr>\n<tr><td class='diff-marker'>\u2212</td><td class='diff-deletedline'><div><strong><del class=\"diffchange diffchange-inline\">MediaWiki has been installed.</del></strong></div></td><td class='diff-marker'>+</td><td class='diff-addedline'><div><strong><ins class=\"diffchange diffchange-inline\">The SimosWiki</ins></strong></div></td></tr>\n<tr><td class='diff-marker'>\u00a0</td><td class='diff-context'></td><td class='diff-marker'>\u00a0</td><td class='diff-context'></td></tr>\n<tr><td class='diff-marker'>\u2212</td><td class='diff-deletedline'><div><del class=\"diffchange diffchange-inline\">Consult </del>the <del class=\"diffchange diffchange-inline\">[https://www.mediawiki.org/wiki</del>/<del class=\"diffchange diffchange-inline\">Special:MyLanguage/Help:Contents User's Guide] for information on using the wiki software</del>.</div></td><td class='diff-marker'>+</td><td class='diff-addedline'><div><ins class=\"diffchange diffchange-inline\">This site is dedicated to tuning </ins>the <ins class=\"diffchange diffchange-inline\">Simos(18) family of ECUs commonly found in the MQB platform of VW</ins>/<ins class=\"diffchange diffchange-inline\">Audi cars</ins>.</div></td></tr>\n<tr><td class='diff-marker'>\u00a0</td><td class='diff-context'></td><td class='diff-marker'>\u00a0</td><td class='diff-context'></td></tr>\n<tr><td class='diff-marker'>\u2212</td><td class='diff-deletedline'><div>== <del class=\"diffchange diffchange-inline\">Getting started </del>==</div></td><td class='diff-marker'>+</td><td class='diff-addedline'><div><ins class=\"diffchange diffchange-inline\">As with anything, you make modifications at your own risk. Nobody else is responsible for anything that happens while you're tuning your car. </ins></div></td></tr>\n<tr><td class='diff-marker'>\u2212</td><td class='diff-deletedline'><div><del class=\"diffchange diffchange-inline\">* [https</del>:<del class=\"diffchange diffchange-inline\">//www</del>.<del class=\"diffchange diffchange-inline\">mediawiki</del>.<del class=\"diffchange diffchange-inline\">org/wiki/Special:MyLanguage/Manual:Configuration_settings Configuration settings list]</del></div></td><td class='diff-marker'>+</td><td class='diff-addedline'><div>\u00a0</div></td></tr>\n<tr><td class='diff-marker'>\u2212</td><td class='diff-deletedline'><div><del class=\"diffchange diffchange-inline\">* [https://www</del>.<del class=\"diffchange diffchange-inline\">mediawiki</del>.<del class=\"diffchange diffchange-inline\">org/wiki/Special:MyLanguage/Manual:FAQ MediaWiki FAQ]</del></div></td><td class='diff-marker'>+</td><td class='diff-addedline'><div><ins class=\"diffchange diffchange-inline\">If the information here has been helpful, consider donating. Domain names and web hosting aren't free. </ins></div></td></tr>\n<tr><td class='diff-marker'>\u2212</td><td class='diff-deletedline'><div><del class=\"diffchange diffchange-inline\">* [https://lists</del>.<del class=\"diffchange diffchange-inline\">wikimedia</del>.<del class=\"diffchange diffchange-inline\">org/mailman/listinfo/mediawiki-announce MediaWiki release mailing list]</del></div></td><td class='diff-marker'>+</td><td class='diff-addedline'><div>\u00a0</div></td></tr>\n<tr><td class='diff-marker'>\u2212</td><td class='diff-deletedline'><div><del class=\"diffchange diffchange-inline\">* [https</del>:<del class=\"diffchange diffchange-inline\">//www</del>.<del class=\"diffchange diffchange-inline\">mediawiki</del>.<del class=\"diffchange diffchange-inline\">org/wiki/Special:MyLanguage/Localisation#Translation_resources Localise MediaWiki </del>for <del class=\"diffchange diffchange-inline\">your language]</del></div></td><td class='diff-marker'>+</td><td class='diff-addedline'><div>== <ins class=\"diffchange diffchange-inline\">High level ecu functionality </ins>==</div></td></tr>\n<tr><td class='diff-marker'>\u2212</td><td class='diff-deletedline'><div><del class=\"diffchange diffchange-inline\">* [https://www</del>.<del class=\"diffchange diffchange-inline\">mediawiki</del>.<del class=\"diffchange diffchange-inline\">org/wiki/Special:MyLanguage/Manual:Combating_spam Learn </del>how <del class=\"diffchange diffchange-inline\">to combat spam on your wiki]</del></div></td><td class='diff-marker'>+</td><td class='diff-addedline'><div><ins class=\"diffchange diffchange-inline\">The ecu in any car is designed to control how the engine operates. Car manufacturers want their engines to produce power, while still being fuel efficient, reliable, quiet, etc.\u00a0 The way they accomplish this is by defining "maps" which contain modifiable parameters that the ecu will use to make decisions on how the engine should be working. In the case of the Simos18, there are both measured values and modeled values in these maps. </ins></div></td></tr>\n<tr><td colspan=\"2\">\u00a0</td><td class='diff-marker'>+</td><td class='diff-addedline'><div>\u00a0</div></td></tr>\n<tr><td colspan=\"2\">\u00a0</td><td class='diff-marker'>+</td><td class='diff-addedline'><div><ins class=\"diffchange diffchange-inline\">=== In short</ins>: <ins class=\"diffchange diffchange-inline\">===</ins></div></td></tr>\n<tr><td colspan=\"2\">\u00a0</td><td class='diff-marker'>+</td><td class='diff-addedline'><div><ins class=\"diffchange diffchange-inline\">The accelerator pedal tells the ecu how much torque the driver wants the engine to produce</ins>.</div></td></tr>\n<tr><td colspan=\"2\">\u00a0</td><td class='diff-marker'>+</td><td class='diff-addedline'><div><ins class=\"diffchange diffchange-inline\">That driver input is referenced against a table that defines the maximum torque available at any given RPM</ins>.</div></td></tr>\n<tr><td colspan=\"2\">\u00a0</td><td class='diff-marker'>+</td><td class='diff-addedline'><div><ins class=\"diffchange diffchange-inline\">That target torque value is referenced against other maps which define how much airflow, followed fuel and timing, the ecu should target to achieve the driver request torque value. </ins></div></td></tr>\n<tr><td colspan=\"2\">\u00a0</td><td class='diff-marker'>+</td><td class='diff-addedline'><div>\u00a0</div></td></tr>\n<tr><td colspan=\"2\">\u00a0</td><td class='diff-marker'>+</td><td class='diff-addedline'><div>\u00a0</div></td></tr>\n<tr><td colspan=\"2\">\u00a0</td><td class='diff-marker'>+</td><td class='diff-addedline'><div><ins class=\"diffchange diffchange-inline\">== Boost management ==</ins></div></td></tr>\n<tr><td colspan=\"2\">\u00a0</td><td class='diff-marker'>+</td><td class='diff-addedline'><div><ins class=\"diffchange diffchange-inline\">The replacement for displacement is boost. We can achieve impressive power levels in small displacement motors by putting turbos on them. We'll assume a working knowledge of forced induction..</ins>. <ins class=\"diffchange diffchange-inline\">If you don't already have that, there's plenty of places to look</ins>.</div></td></tr>\n<tr><td colspan=\"2\">\u00a0</td><td class='diff-marker'>+</td><td class='diff-addedline'><div>\u00a0</div></td></tr>\n<tr><td colspan=\"2\">\u00a0</td><td class='diff-marker'>+</td><td class='diff-addedline'><div><ins class=\"diffchange diffchange-inline\">Once the ecu has calculated the amount of torque the driver wants, it'll use that to dictate how much boost it should try and create. The engine will convert the driver request torque value into an airflow volume. I.e</ins>. <ins class=\"diffchange diffchange-inline\">to make T torque at R rpm we need V volume of air</ins>. \u00a0</div></td></tr>\n<tr><td colspan=\"2\">\u00a0</td><td class='diff-marker'>+</td><td class='diff-addedline'><div>\u00a0</div></td></tr>\n<tr><td colspan=\"2\">\u00a0</td><td class='diff-marker'>+</td><td class='diff-addedline'><div><ins class=\"diffchange diffchange-inline\">Modeled tables</ins>:</div></td></tr>\n<tr><td colspan=\"2\">\u00a0</td><td class='diff-marker'>+</td><td class='diff-addedline'><div><ins class=\"diffchange diffchange-inline\">The ecu has no way to calcute actual airflow</ins>. <ins class=\"diffchange diffchange-inline\">There's no MAF</ins>. <ins class=\"diffchange diffchange-inline\">what it does have is PUT and MAP sensors ("PUT" stands </ins>for <ins class=\"diffchange diffchange-inline\">pressure upstream throttle, vs "MAP" which you should already be familiar with.), Baro sensor, temperature sensors, etc. If you know the airflow characteristics of the turbo, you can calcute the volume of air that it flows given its output pressure.\u00a0 So to target V volume of air, the ecu assumes that it should target B boost pressure (PUT set point or PUT_SP)</ins></div></td></tr>\n<tr><td colspan=\"2\">\u00a0</td><td class='diff-marker'>+</td><td class='diff-addedline'><div>\u00a0</div></td></tr>\n<tr><td colspan=\"2\">\u00a0</td><td class='diff-marker'>+</td><td class='diff-addedline'><div><ins class=\"diffchange diffchange-inline\">But there's more involved in choosing a PUT_SP than just modeled airflow tables</ins>. <ins class=\"diffchange diffchange-inline\">We also have tables that define the maximum turbo pressure ratio</ins>. <ins class=\"diffchange diffchange-inline\"> At certain target airflow volumes and RPMs, we can tell the ecu to limit the PUT. </ins></div></td></tr>\n<tr><td colspan=\"2\">\u00a0</td><td class='diff-marker'>+</td><td class='diff-addedline'><div>\u00a0</div></td></tr>\n<tr><td colspan=\"2\">\u00a0</td><td class='diff-marker'>+</td><td class='diff-addedline'><div><ins class=\"diffchange diffchange-inline\">And once we've got our PUT_SP, </ins>how <ins class=\"diffchange diffchange-inline\">do we limit the boost?\u00a0 Wastegate duty cycle (or wastegate_sp).\u00a0 </ins></div></td></tr>\n<tr><td colspan=\"2\">\u00a0</td><td class='diff-marker'>+</td><td class='diff-addedline'><div>\u00a0</div></td></tr>\n<tr><td colspan=\"2\">\u00a0</td><td class='diff-marker'>+</td><td class='diff-addedline'><div><ins class=\"diffchange diffchange-inline\">The Simos family of ECUs use electronic wastegate control rather than a traditional boost actuated wastegate. Typically there's a spring that will operate at a fixed boost pressure, and a boost controller will bleed off a certain amount of pressure so the spring operates at a higher boost.\u00a0 An electronic wastegate works by having a target position at a certain boost level.</ins></div></td></tr>\n<tr><td colspan=\"2\">\u00a0</td><td class='diff-marker'>+</td><td class='diff-addedline'><div>\u00a0</div></td></tr>\n<tr><td colspan=\"2\">\u00a0</td><td class='diff-marker'>+</td><td class='diff-addedline'><div><ins class=\"diffchange diffchange-inline\">== Fueling ==</ins></div></td></tr>\n<tr><td colspan=\"2\">\u00a0</td><td class='diff-marker'>+</td><td class='diff-addedline'><div>\u00a0</div></td></tr>\n<tr><td colspan=\"2\">\u00a0</td><td class='diff-marker'>+</td><td class='diff-addedline'><div><ins class=\"diffchange diffchange-inline\">== Timing ==</ins></div></td></tr>\n\n<!-- diff cache key simoswiki:diff::1.12:old-1:rev-2 -->\n"
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