Posted on 26. Jan, 2011 by in Ford Canada

Focus SE Sport Package, SEL and Titanium models offer a six-speed PowerShift involuntary delivery with SelectShift functionality, around a shifter-mounted +/- toggle switch.
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  • 2012 Ford Focus, featuring a 2.0-liter direct-injection gasoline engine and PowerShift dry-clutch six-speed involuntary transmission, incorporates Fords law Torque Hole Filling (THF) record for smoother, some-more seamless change quality
  • THF uses a mixed of mathematical displaying and computer-aided engineering tools, along with other enabling delivery technologies to broach smoother upshifts
  • Originally penned in 1986, a Ford-developed THF invention avowal came to delight as computing energy and delivery technologies held adult with a pioneering idea
  • In inner evaluations, THF softened change peculiarity ratings by adult to 2 points (out of 10) in comparison to baseline shifts with compulsory controls

DEARBORN, Mich., Jan. 26, 2011 The 2012 Ford Focus will offer adult well-developed change peculiarity to drivers, powered in partial by an resourceful Ford delivery record that has been watchful scarcely 25 years for computing energy to locate adult to make it a reality.

Focus facilities a Ford PowerShift dry-clutch six-speed involuntary transmission, one of a initial transmissions to advantage from Torque Hole Filling (THF), a Ford-developed and law judgment and methodology recognised a entertain century ago. THF uses a mixed of mathematical algorithms, computer-aided engineering (CAE) collection and delivery control technologies to fill what is ordinarily famous as a torque hole a slight perplexity drivers might feel during an upshift when there is a duration dump in delivery torque outlay followed by a arise in torque.

The torque hole has been fundamental to involuntary transmissions given a 1940s, pronounced Ford Research Technical Expert Chris Teslak. Even nonetheless many work in controls and calibration has been finished over a years, it has remained a vital challenge, he said.

To residence this challenge, Dr. Davor Hrovat, a Ford Technical Fellow in Controls Research, authored an invention avowal in a mid-1980s on how to coordinate engine and delivery controls to assistance discharge a torque hole. Further methodical work and make-believe suggested this pioneering judgment was promising, though a record indispensable to exercise it wasnt entirely mature yet.

Although a group has famous what was indispensable to emanate smoother shifts, a tangible doing had to wait for drive-by-wire technologies, electronic stifle control and estimate energy to locate adult to renovate this resourceful thought into a reality, pronounced Teslak, who credits THF plan technical leaders Yuji Fujii and Eric Tseng, along with other core technical experts/engineers Jahan Asgari, Tom Brown, Chad Griffin, Don Levens and Brad Riedle for assisting to pierce THF to delight underneath Hrovats guidance.

Enabling technologies such as electronic stifle control and softened actuators and sensors, joined with a THF methodology, gave a group of Ford engineers a collection indispensable to precisely sync delivery and engine to send and well-spoken out a torque during a apportionment of an upshift durability a fragment of a second. Adding that small additional torque during a change helps fill a hole, formulating a smoother expostulate believe for a customer.

In inner engineering evaluations regulating a PowerShift prototype, THF softened change peculiarity ratings by adult to 2 points on a scale of 1 to 10 in comparison to baseline shifts with compulsory controls.

THF uses energetic displaying and exclusive algorithms to authority a additional engine torque thats essential for progressing driver-desired (communicated around a gas pedal) circle torque in a precise, concurrent approach with a purchase control, pronounced Riedle, Ford technical consultant in delivery electronics.

To pre-stage this fraction-of-a-second review between engine and transmission, a certain grade of finesse, coordination and upfront believe of what business understand as a peculiarity change was needed. The record also compulsory a Ford engineering teams from several disciplines to chuck divided preconceived notions about compulsory engine and change controls.

In total, a group logged approximately 3 years or 6,000 man-hours of computer-aided mathematical modeling, make-believe and investigate of engine speeds, torque and purchase ability in usually 24 months genuine time to infer a THF judgment was production-ready.

This methodology is a outcome of persistence, teamwork, artistic meditative and a enterprise to pierce over existent change dynamics, pronounced Teslak. THF enables a consistently well-spoken change feel with smallest calibration bid and no incremental hardware cost.

More importantly, a a unstable record that can be practical opposite mixed powertrain/transmission powerpacks, giving us a ability to fast broach best-in-class change peculiarity opposite platforms.

Ford has dual U.S. patents covering extended THF applications and several other associated patents are pending. Further investigate on how to many effectively incorporate THF into some-more compulsory heavenly gear-based transmissions is ongoing.


About Ford Motor Company
Ford Motor Company, a tellurian automotive attention personality formed in Dearborn, Mich., manufactures or distributes automobiles opposite 6 continents. With about 163,000 employees and about 70 plants worldwide, a company’s automotive brands embody Ford and Lincoln. The association provides financial services by Ford Motor Credit Company. For some-more information per Ford’s products, greatfully revisit

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