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A couple of months back, we reported that Honda had filed a patent for its next generation variable valve timing and lift control system: appropriately named "Advanced VTEC." At the time, the only information available was the results of this new technology, specifically that it would boost fuel economy, increase performance and spew less emissions into the atmosphere - simply an evolution of their current system.

Paul Tan was able to procure the patent itself and has published the filing on his website, paultan.org (or you can view it here through the U.S. Patent Office).

The short and sweet version involves the employment of a small cylinder encompassing the camshaft that is connected to the rocker shaft. As the drum rotates the rocker adjusts the valve lift and timing. There are several images and a statement of claims posted, which are well worth a look-see if you've got your engineering hat on.

[Source: U.S. Patent Office via PaulTan.org]

Honda's patent for Advanced VTEC originally appeared on Autoblog on Tue, 17 Apr 2007 08:24:00 EST. Please see our terms for use of feeds.

Read | Permalink | Email this | Comments]]>acuraadvanced v-tecadvanced vtecAdvancedV-tecAdvancedVtechondaTue, 17 Apr 2007 08:24:00 EST<![CDATA[More details about Honda's A-VTEC system]]>http://www.autoblog.com/2007/02/17/more-details-about-hondas-a-vtec-system/http://www.autoblog.com/2007/02/17/more-details-about-hondas-a-vtec-system/http://www.autoblog.com/2007/02/17/more-details-about-hondas-a-vtec-system/#commentsFiled under: , , , ,



When Honda released information about the development of its Advanced VTEC (A-VTEC) system in September, we were looking forward to seeing how the new system would be employed in the next generation of Acuras and Hondas. The system will increase torque, power and fuel economy, all while oozing fewer emissions into the atmosphere. Good stuff, all of it.

Not much has been released since, but the variable valve timing obsessed folks over that the Temple of VTEC (TOV) came across a new patent filed by Honda entitled the "Variable valve actuation device." The setup is similar to BMW's Valvetronic system, by varying the lift and duration of the valves throughout the powerband, likely eliminating that abrupt, albeit entertaining, switch over to the hot lobes. It can be employed in both SOHC and DOHC applications and will likely find a home in the 2008 model Accord.

More power, more torque, less emissions, plus the option of a lightweight SOHC engine? Bring it.

[Source: TOV via Motor Authority]

More details about Honda's A-VTEC system originally appeared on Autoblog on Sat, 17 Feb 2007 16:29:00 EST. Please see our terms for use of feeds.

Read | Permalink | Email this | Comments]]>2008 honda accord2008HondaAccorda-vtecacuraadvanced vtecAdvancedVtecavtechondatsxSat, 17 Feb 2007 16:29:00 EST<![CDATA[Honda reveals the Advanced VTEC engine]]>http://www.autoblog.com/2006/09/25/honda-reveals-the-advanced-vtec-engine/http://www.autoblog.com/2006/09/25/honda-reveals-the-advanced-vtec-engine/http://www.autoblog.com/2006/09/25/honda-reveals-the-advanced-vtec-engine/#commentsFiled under: , ,



Honda's engineers have been busily figuring out how to make their VTEC engine better, and today the auto giant released the first details about the next-generation powerplant, which they're calling Advanced VTEC. Honda says it plans to have the new engine in a production car within the next three years.

Torquier at all speeds, the engine also sets the valves for low lift and early closure at lower load levels, which boosts fuel economy to the tune of 13% over the current 2.4L i-VTEC when the engine is equipped with the proper intake bits. In addition to being punchier and more economical, the engine is cleaner-burning as well, garnering a LEV2-ULEV emissions rating.

This is good news. While research and implementation of the various alternative fuel and propulsion solutions is most welcome, there's a lot to be said for the regular, economical four-cylinder gasoline engine. If Honda is on the verge of producing a four with power, more torque (hooray!), better fuel economy and cleaner emissions, the Advanced VTEC is going to be a highly attractive alternative to the alternatives.

(Additional photos, press release after the jump)

[Source: Honda]

Continue reading Honda reveals the Advanced VTEC engine

Honda reveals the Advanced VTEC engine originally appeared on Autoblog on Mon, 25 Sep 2006 17:05:00 EST. Please see our terms for use of feeds.

Permalink | Email this | Comments]]>advanced vtecAdvancedVtecnew vtecNewVtecnext-gen vtecnext-generation vtecNext-generationVtecNext-genVtecvtecMon, 25 Sep 2006 17:05:00 EST