Chrysler Readies Nine-Speed Auto Transmissions to Cut Fuel Consumption
August 1, 2012 9:21 AM
comment(s) - last by
The Chrysler 300 will be a recipient of the new 9-speed automatic transmission.
A 16% improvement in fuel efficiency is expected from nine-speed transmission
Automakers are pulling out all the stops and looking to squeeze every single mile per gallon out of their automobiles by any means necessary. Automakers are looking at more
fuel-efficient engines with smaller displacements
, but they're also looking at
reducing the weight of vehicles
increasing the number of forward gears
used in car/truck transmissions.
Adding forward gears
to a transmission makes a lot of sense because the slower the engine spins, the less fuel it consumes. In years past automatic transmissions used in vehicles commonly had four or five forward gears. More recent vehicles are moving up to six-speed and in some cases even eight-speed automatic transmissions in luxury vehicles. Chrysler is eyeing even more gears inside with nine-speed gearboxes for more mainstream vehicles.
According to Mircea Gradu, vice president transmission powertrain driveline engineering, Chrysler will roll out its first nine-speed transmission by the first half of 2013. “I’m convinced that, sooner or later, others will come up with similar solutions,” Gradu said in an interview from his office in Auburn Hills, Michigan, where Chrysler is based. “Hopefully, the time will be as long as possible until they catch up with the technology.”
Chrysler CEO Sergio Marchionne believes that the automaker and its various brands will be able to meet looming fuel-efficiency standards by using technology that improves traditional gasoline engines combined with better transmissions rather than moving to plug-in hybrids and pure electric vehicles.
will reach 54.5 mpg by 2025.
Michael Omotoso, a powertrain analyst at LMC Automotive, said, "They’re [Chrysler] doing basically the bare minimum to satisfy government regulations. Their strategy is to meet the standards with minimum investment.”
reports that the nine-speed transmission Chrysler is developing could boost fuel economy of certain models by as much as 16%. Chrysler has already scored a 15% boost in the highway fuel economy of the Chrysler 300 and Dodge Charger by adding an eight-speed automatic transmission.
This article is over a month old, voting and posting comments is disabled
RE: This is the solution to a reliable high torque capacity CVT
8/2/2012 1:53:39 AM
All the transmissions that failed on you were probably made for Chrysler by Mitsubishi.
But it isn't entirely Mitsubishi's fault. For example, for almost two decades, Chrysler used the F4A22-2 transmission supplied by Mitsubishi in their minivans with 3.0l and 3.3l V6's. These transmissions were rated for light vehicle use (they were common in the Galant and the Hyundai Sonata, which used the same Mitsubishi V6 as the Galant.)
Chrysler thought they'd out-wit the laws of physics putting a transmission rated for a 3000lb vehicle in a 4000lb vehicle with half the aerodynamics. Obviously most of these transmissions needed multiple rebuilds because the overdrive bands burned up or the 1st gear solenoids failed.
RE: This is the solution to a reliable high torque capacity CVT
8/2/2012 7:46:41 AM
the f4a33/w4a33 is one of the most bulletproof transmissions ever put into a car. legions of DSM guys are running 9's with them.
i would say it's chrysler that doesn't know how to build a transmission worth a crap.
for what it's worth though, most consumers don't need more than 4 non-overdrive forward speeds. 5 if you count the 5th as 1:1. overdrive has been a shortcoming on production automobiles for quite some time (especially on fleet vehicles that get a lot of mileage). .50:1 isn't a great ratio for accelerating, but it's terrific for crusing at 75mph on the highway.
there is a reason semi-trucks may have anywhere from 9 to 18 different forward gears. i'm glad to see that automakers in the past 10 years have finally began to offer the consumer choices that should have been offered back in 1974.
"Google fired a shot heard 'round the world, and now a second American company has answered the call to defend the rights of the Chinese people." -- Rep. Christopher H. Smith (R-N.J.)
Report: Ford's Best-Selling F-150 to Lose 700 lbs to Meet EPA Fuel Standards
July 27, 2012, 8:34 AM
BMW Patent Shows Seven-Speed Manual Transmission in the Works
June 7, 2012, 10:02 AM
UPDATED: Fed's Proposed 54.5 MPG CAFE Requirements for 2017-2025 Released
November 16, 2011, 4:30 PM
2012 Porsche 911 Gets Official With 7-Speed Manual, Start/Stop System
August 23, 2011, 5:31 AM
Ford Confirms 1.0-liter, 3-Cylinder EcoBoost Engine for Subcompact Fiesta
June 2, 2011, 3:21 PM
New Fisker Owners Aim to Relaunch Karma Hybrid in 2015
April 23, 2014, 9:22 AM
Ford Says C-Max Hybrid Sales Dropped After It Was Forced to Reduce MPG Ratings
April 22, 2014, 11:25 AM
Mercedes U.S. Head Steve Cannon Criticizes Tesla, Says Long-term Outlook is Poor
April 22, 2014, 9:42 AM
Ford 2015 Mustang GT Receives "Line-Lock" Tech for Track Duty
April 21, 2014, 9:43 AM
Volvo Exec: Each Volvo Sold in U.S. Could Be Sold With Plug-In Hybrid Powertrain
April 18, 2014, 1:33 PM
Nissan Introduces EZ-Charge Cards for New LEAF Owners, Offers Free Charging
April 17, 2014, 2:23 PM
Most Popular Articles
A Bug's Life: Female Cave Bugs Have Penises, Penetrate Males for Three Days
April 17, 2014, 7:20 PM
HTC Hires Former Samsung Marketing Chief Who Developed "Galaxy" Brand
April 18, 2014, 6:00 PM
NASA Finds "Habitable Zone" Planet Sized Similar to Earth
April 18, 2014, 3:13 PM
Mounties Arrest 19-Year-Old Who Delayed Canada's Tax Filing w/ Heartbleed
April 17, 2014, 3:24 PM
Thanks to Government Crackdown, Chinese "Porn Cop" Has Watched 600K Adult Videos
April 21, 2014, 12:00 PM
Latest Blog Posts
Facebook Aims to Provide Internet to "Every Person in the World" with Drones, Satellites
Apr 1, 2014, 10:20 AM
Retail Mobile Sites Experience Outages in Light of Simplexity's Bankruptcy
Mar 14, 2014, 8:48 AM
Tesla vs. BMW: Who Has the Safer EV?
Feb 1, 2014, 2:56 PM
Justice Leaks Details of Next HTC One Two Flagship Phone
Dec 5, 2013, 4:04 PM
Global Cyber Espionage Concerns Reveal Growing Cyber Armies
Nov 29, 2013, 11:04 AM
More Blog Posts
Copyright 2014 DailyTech LLC. -
Terms, Conditions & Privacy Information