{"id":366128,"date":"2010-02-26T11:30:43","date_gmt":"2010-02-26T16:30:43","guid":{"rendered":"http:\/\/www.ridelust.com\/?p=38691"},"modified":"2010-02-26T11:30:43","modified_gmt":"2010-02-26T16:30:43","slug":"everything-you-ever-wanted-to-know-about-throttle-by-wire","status":"publish","type":"post","link":"https:\/\/mereja.media\/index\/366128","title":{"rendered":"Everything You Ever Wanted To Know About Throttle By Wire"},"content":{"rendered":"

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I\u2019m not aware of a vehicle sold in the US today that doesn’t use throttle by wire technology. What is it? The videos below will explain that in as much detail as you could possibly want. To briefly describe it, throttle by wire uses sensors and motors to open and close the fuel injection\u2019s throttle body. Previously, on both carbureted and fuel injected motors, this was done via a cable linkage between the accelerator and the carburetor or throttle body. Why go to throttle by wire? Theoretically at least, it\u2019s more reliable, more precise and allows greater monitoring capabilities of emission control systems and engine performance. <\/p>\n

<\/span>Where did throttle by wire originate? In aircraft, where it was originally called \u201cfly by wire\u201d. As any DC3 pilot will tell you, muscling a big plane with cable activated ailerons, elevators and rudder takes some strength and endurance. As planes got bigger, heavier and faster, it became necessary to develop flight controls that used servo motors to do the hard work.<\/p>\n

So if they\u2019re used in aircraft, where safety is paramount, they should be bulletproof in other applications, right? The car manufacturers, Toyota especially, would like you to believe that. I have a friend who\u2019s a flight control engineer on military aircraft, and he\u2019s less than convinced. In his words:<\/p>\n

\u201c To be honest, I\u2019ve always thought it to be the height of arrogance by the car companies when they claim that (failure) COULDN\u2019T be electronic. I work with aircraft flight controls. We use quad redundant electronic systems (when you take into account internal modeling, it is more like 8x redundancy) and monitor hundreds of parameters in clock cycles measuring in ms. We STILL get cases where we have failures that cause strangeneess in the air and our fleet is measured at around 1500 aircraft.<\/p>\n

Take a car, with far less rigorous maintenance, working on a dual redundant system and tens, if not hundreds, of thousands of copies and I\u2019d be shocked if there weren\u2019t annunciated electrical failures.\u201d<\/em><\/p>\n

In any case, here are the videos, courtesy of Toyota. While produced by Toyota, they\u2019re still relevant to other manufacturers, who use the same technology, albeit with slightly different hardware and software. Hat tip to Brad for the heads up on the videos.<\/p>\n

Electronic Throttle Control Overview<\/h3>\n

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Electronic Throttle Control System Animation<\/h3>\n

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Electronic Throttle Control System Animation: Diagnosis<\/h3>\n

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Electronic Throttle Control System Animation: What If?<\/h3>\n

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Still have questions? Still want answers from Toyota? The following webinar, source of the above videos, was held on February 22. It goes into a bit more detail about Toyota\u2019s testing process to counter RF and EM interference, and includes a Q&A session with the press. It\u2019s about an hour in length, so make sure your coffee cup is full before you hit play.<\/p>\n

Toyota Throttle Control System Webinar<\/h3>\n

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Source: Toyota<\/a><\/p>\n

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I\u2019m not aware of a vehicle sold in the US today that doesn’t use throttle by wire technology. What is it? The videos below will explain that in as much detail as you could possibly want. To briefly describe it, throttle by wire uses sensors and motors to open and close the fuel injection\u2019s throttle […]<\/p>\n","protected":false},"author":2161,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-366128","post","type-post","status-publish","format-standard","hentry","category-news"],"_links":{"self":[{"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/posts\/366128","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/users\/2161"}],"replies":[{"embeddable":true,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/comments?post=366128"}],"version-history":[{"count":0,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/posts\/366128\/revisions"}],"wp:attachment":[{"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/media?parent=366128"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/categories?post=366128"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/tags?post=366128"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}