{"id":18466,"date":"2022-06-29T07:00:13","date_gmt":"2022-06-29T12:00:13","guid":{"rendered":"https:\/\/www.caddyinfo.com\/wordpress\/?p=18466"},"modified":"2022-06-29T07:00:13","modified_gmt":"2022-06-29T12:00:13","slug":"torque-management-advance-to-pressure-delta","status":"publish","type":"post","link":"http:\/\/www.caddyinfo.com\/wordpress\/torque-management-advance-to-pressure-delta\/","title":{"rendered":"Torque Management Advance to Pressure Delta"},"content":{"rendered":"\n<p>I have made progress in reducing the torque management advance (TMA) by RPM Limit Accel Thresh vs. Accel.  However, there is still some TMA remaining.  I suspect there were multiple sources for the TMA &#8212; we solved one.  My next hypothesis is that there is some torque management advance coming from boost rate of increase exceeding the allowed pressure delta.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"913\" height=\"659\" src=\"https:\/\/www.caddyinfo.com\/wordpress\/wp-content\/uploads\/2022\/06\/TMA-to-pressure-delta-Capture.png\" alt=\"\" class=\"wp-image-18468\" srcset=\"http:\/\/www.caddyinfo.com\/wordpress\/wp-content\/uploads\/2022\/06\/TMA-to-pressure-delta-Capture.png 913w, http:\/\/www.caddyinfo.com\/wordpress\/wp-content\/uploads\/2022\/06\/TMA-to-pressure-delta-Capture-500x361.png 500w, http:\/\/www.caddyinfo.com\/wordpress\/wp-content\/uploads\/2022\/06\/TMA-to-pressure-delta-Capture-768x554.png 768w, http:\/\/www.caddyinfo.com\/wordpress\/wp-content\/uploads\/2022\/06\/TMA-to-pressure-delta-Capture-416x300.png 416w\" sizes=\"auto, (max-width: 913px) 100vw, 913px\" \/><\/figure>\n\n\n\n<p>I see in the prior graphs that when there is torque management advance there is also rapid boost increase.  I assumed that this was due to the TMA, but it got me wondering if the rapid boost increase was actually a causal factor for the TMA.  <\/p>\n\n\n\n<p>I am not clear how Cadillac calculates rate of boost increase.  To try to model the rate, in the graph above I first graphed the limit in blue.  Then I considered a rate of increase per 0.1 seconds from my log 1E.   In other words, what was the % of increase in boost over 0.1 seconds?   I graphed that in red.  Finally, where do we see TMA on the same run?  I graphed that in gray.  I can see that the TMA correlates with the boost increase rate.  Correlation does not equate to causation, but it is a clue.  <\/p>\n\n\n\n<p>My next test will be to increase the Pressure Delta Factor to determine if that has an impact on torque management advance.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I have made progress in reducing the torque management advance (TMA) by RPM Limit Accel Thresh vs. Accel. However, there is still some TMA remaining. I suspect there were multiple sources for the TMA &#8212; we solved one. My next &hellip; <a href=\"http:\/\/www.caddyinfo.com\/wordpress\/torque-management-advance-to-pressure-delta\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-18466","post","type-post","status-publish","format-standard","hentry","category-site-info-news"],"_links":{"self":[{"href":"http:\/\/www.caddyinfo.com\/wordpress\/wp-json\/wp\/v2\/posts\/18466","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.caddyinfo.com\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.caddyinfo.com\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.caddyinfo.com\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.caddyinfo.com\/wordpress\/wp-json\/wp\/v2\/comments?post=18466"}],"version-history":[{"count":1,"href":"http:\/\/www.caddyinfo.com\/wordpress\/wp-json\/wp\/v2\/posts\/18466\/revisions"}],"predecessor-version":[{"id":18469,"href":"http:\/\/www.caddyinfo.com\/wordpress\/wp-json\/wp\/v2\/posts\/18466\/revisions\/18469"}],"wp:attachment":[{"href":"http:\/\/www.caddyinfo.com\/wordpress\/wp-json\/wp\/v2\/media?parent=18466"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.caddyinfo.com\/wordpress\/wp-json\/wp\/v2\/categories?post=18466"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.caddyinfo.com\/wordpress\/wp-json\/wp\/v2\/tags?post=18466"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}