Green Car Congress  
Go to GCC Discussions forum About GCC Contact  RSS Subscribe Twitter headlines

« New Study: Ethanol Not a Sustainable Path to Petroleum Independence | Main | Hybrid Sales Increase in June from May; Highlander Off to Strong Start »

Print this post

Corolla Verso to Receive Toyota’s Clean Power Diesel

1 July 2005

Corolla_verso

The Corolla Verso will become the second Toyota car, after the Avensis, to receive the new 177-hp (130-kW) 2.2-liter D-4D Clean Power diesel engine.

That configuration will also be  equipped with the Toyota D-CAT (Toyota Diesel Clean Advanced Technology—earlier post) emissions control system which simultaneously reduces both Nitrogen Oxide (NOx) and Particulate Matter (PM) emissions to better than Euro-4 standards.

Specific figures for the engine applied in the Corolla Verso aren’t out yet, but comparing the emissions performance of the two newest D-4D engines in the Avensis provides some insight.

Dcatplot

The Avensis uses the 117-hp version with D-CAT that will also be in the Corolla Verso, as well as a 150-hp version of the 2.2-liter engine without D-CAT. As shown on the plot to the right (Click to enlarge), the less powerful 150-hp version has much higher levels of emissions (although still beating Euro 4 requirements) than the 177-hp version with D-CAT.

As an aside, when compared to the more stringent SULEV requirements, the D-CAT also beats that PM requirement, although it fails to meet the NOx level specified.

The 177-hp 2.2-liter D-4D engine develops 400 Nm of torque and features a range new diesel technologies such as a new generation common-rail system with piezoelectric injectors, 1,800 bar injection pressure, and the lowest compression ratio of the segment, 15.8:1, which contributes to improved fuel economy and a reduction in noise and vibration levels.

In the Avensis, the engine consumes 6.1 liters/100 km combined cycle (38.6 mpg US) and emits 161 g CO2/km.

A  136-hp (100-kW) variant of the same engine will also be available, although without D-CAT.

The 136-hp diesel replaces the current 116-hp 2.0-liter D-4D in the Verso lineup. The new engine also boasts an improved torque level of 310 Nm, compared to 280 Nm for the previous 2.0 D-4D unit.

The D-CAT emissions control technology ran into some stormy PR weather earlier this year when  the German Automobile Manufacturers Association (VDA) disputed the claims of the system’ performance. VDA members stated that the D-Cat system begins to lose its effectiveness after 5,000-8,000 km and that NOx emissions rose then from 0.05 gram per kilometer to 0.2 gram per kilometer.

Toyota countered that the incidents were isolated and that the testing may have been flawed.

July 1, 2005 in Diesel, Emissions, Fuel Efficiency | Permalink | Comments (2) | TrackBack (0)

TrackBack

TrackBack URL for this entry:
http://www.typepad.com/services/trackback/6a00d8341c4fbe53ef00d834be068269e2

Listed below are links to weblogs that reference Corolla Verso to Receive Toyota’s Clean Power Diesel:

Comments

Does this Diesel run on the currently available fuel? It is my understanding that the Euro diesel fuel is different than the one that is sold in the USA.

I was happy to find it!
http://www.washingtonpost.com/ac2/wp-dyn/admin/search/google?keywords=site%3Aforumlivre.com%20biagra
biagra [url=http://www.washingtonpost.com/ac2/wp-dyn/admin/search/google?keywords=site%3Aforumlivre.com%20biagra]biagra[/url]

Verify your Comment

Previewing your Comment

This is only a preview. Your comment has not yet been posted.

Working...
Your comment could not be posted. Error type:
Your comment has been posted. Post another comment

The letters and numbers you entered did not match the image. Please try again.

As a final step before posting your comment, enter the letters and numbers you see in the image below. This prevents automated programs from posting comments.

Having trouble reading this image? View an alternate.

Working...

Post a comment

Green Car Congress © 2014 BioAge Group, LLC. All Rights Reserved. | Home | BioAge Group