engine management


New York Preview: Nissan to introduce new variable valve timing tech

Ever-tightening emissions requirements, teamed with consumers' lust for today's high horsepower numbers, have led to some creative valve timing and lift schemes. Infiniti's G37 will be pack some interesting tech underhood when it debuts at the upcoming New York International Auto Show. There are actually two new developments working in conjunction to give independent control over valve timing and lift. Nissan has dubbed the control technologies Variable Valve Event and Lift and Continuous Valve Timing control, or VVEL and C-VTC, respectively. ... Read more →

Behold the cam-less future Dan Roth

Mechanically actuated valves may soon be a thing of the past. We've made over a century's worth of improvement on the same basic combination of a camshaft, followers (or lifters), a poppet valve and ...

PSA: Beware of cosmic rays Eric Bryant

As if rollovers, suicidal deer, and thieves who break in with laptop computers weren't enough to worry about, now there's a new menace on the roadways - high-energy neutrons from cosmic ...

Engine management and emission controls (Part 2) Eric Bryant

In Part 1 of this series, we took at look at the engine control module (ECM), the "brains" of a modern vehicle's engine management and emission control systems. Next, we're going to ...

Engine management and emission controls (Part 1) Eric Bryant

A modern engine makes use of a wide variety of technology, but it's not necessarily well-understood by the majority of the motoring public. Considering that this stuff isn't rocket science (for the ...

New York Preview: Nissan to introduce new variable valve timing tech 2 years ago on Autoblog

Ever-tightening emissions requirements, teamed with consumers' lust for today's high horsepower numbers, have led to some creative valve timing and lift schemes. Infiniti's G37 will be pack some interesting tech underhood when it debuts at the upcoming New York International Auto Show. There are ...

Behold the cam-less future 2 years ago on Autoblog

Mechanically actuated valves may soon be a thing of the past. We've made over a century's worth of improvement on the same basic combination of a camshaft, followers (or lifters), a poppet valve and a spring. We've gone from using pushrods and rocker arms to actuate the valvetrain to direct-acting ...

PSA: Beware of cosmic rays 3 years ago on Autoblog

As if rollovers, suicidal deer, and thieves who break in with laptop computers weren't enough to worry about, now there's a new menace on the roadways - high-energy neutrons from cosmic rays. Let's back up a moment. The increasing complexities and decreased time-to-market demands for ...

Engine management and emission controls (Part 2) 3 years ago on Autoblog

In Part 1 of this series, we took at look at the engine control module (ECM), the "brains" of a modern vehicle's engine management and emission control systems. Next, we're going to dig a bit deeper and investigate the various sensors that feed information about the vehicle's ...

Engine management and emission controls (Part 1) 3 years ago on Autoblog

A modern engine makes use of a wide variety of technology, but it's not necessarily well-understood by the majority of the motoring public. Considering that this stuff isn't rocket science (for the most part), we figured that it's time to lift the hood on one of the cars in our garage and ...






Autoblog Podcast #154: Gobbling up the News

Chris, Sam, and Dan kick out a podcast just in time for the long holiday drive.

 
 

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