INVECS (Intelligent & Innovative Vehicle Electronic Control System)
, Mitsubishi Motors website is the

brand name A brand is a name, term, design, symbol or any other feature that distinguishes one seller's good or service from those of other sellers. Brands are used in business, marketing, and advertising for recognition and, importantly, to create an ...

used by

Mitsubishi Motors is a Japanese multinational automobile manufacturer headquartered in Minato, Tokyo, Japan.automatic transmission An automatic transmission (sometimes abbreviated to auto or AT) is a multi-speed transmission used in internal combustion engine-based motor vehicles that does not require any input from the driver to change forward gears under normal driving ...

technology.

INVECS

The first generation of ''INVECS'' debuted in the seventh generation of the

Mitsubishi Galant The Mitsubishi Galant is an automobile which was produced by Japanese manufacturer Mitsubishi from 1969 until 2012. The model name was derived from the French word ''galant'', meaning "chivalrous". There have been nine distinct generations with ...

, which was introduced in 1992.Fact & Figures 2000
, p.45, Mitsubishi Motors website"Control Technology"
, Mitsubishi Motors South Africa website An array of sensors continuously monitored six parameters and, using "

fuzzy logic Fuzzy logic is a form of many-valued logic in which the truth value of variables may be any real number between 0 and 1. It is employed to handle the concept of partial truth, where the truth value may range between completely true and completel ...

", adapted the shift patterns in the automatic gearbox "on the fly" according to the driver's style. The

four-wheel drive Four-wheel drive, also called 4×4 ("four by four") or 4WD, refers to a two-axled vehicle drivetrain capable of providing torque to all of its wheels simultaneously. It may be full-time or on-demand, and is typically linked via a transfer ca ...

four-wheel steering Steering is a system of components, linkages, and other parts that allows a driver to control the direction of the vehicle. Introduction The most conventional steering arrangement allows a driver to turn the front wheels of a vehicle using ...

traction control system A traction control system (TCS), also known as ASR (from german: Antriebsschlupfregelung, lit=drive slippage regulation), is typically (but not necessarily) a secondary function of the electronic stability control (ESC) on production motor vehicle ...

and suspension were all similarly adapted based on the same sensor data. INVECS would, for example, downshift to increase engine braking while travelling downhill, or similarly automate transmission processes which were previously only controlled manually by the driver."Fuzzy-Mitsubishi"
Peter G. Neumann, April 9, 1992

INVECS-II

Despite sharing its name with the previous system, the second version of ''INVECS'' was a radical development, based on

Porsche Dr. Ing. h.c. F. Porsche AG, usually shortened to Porsche (; see below), is a German automobile manufacturer specializing in high-performance sports cars, SUVs and sedans, headquartered in Stuttgart, Baden-Württemberg, Germany. The company ...

Tiptronic The modern usage of the automotive term manumatic denotes an automatic transmission that allows the driver to select a specific gear, typically using paddle-shifters, steering wheel-mounted push-buttons, or "+" and "-" controls on the gear select ...

technology."Automatic with manual override"
, Mark Wan, AutoZine Technical School As with Porsche's version it allowed for either a ''fully-automatic'' mode, or a ''

clutch A clutch is a mechanical device that engages and disengages power transmission, especially from a drive shaft to a driven shaft. In the simplest application, clutches connect and disconnect two rotating shafts (drive shafts or line shafts). ...

less manual mode'' if the driver wished to control the up- and down-shift points. It also offered the same Adaptive Shift Control software which monitored and "learned" the driver's habits over time and adjusted the smoothness or aggression of the gearshifts to suit his or her driving style."Technical Features: INVECS-II"
Mitsubishi Motors UK website It was first implemented in the new

Mitsubishi FTO The Mitsubishi FTO is a front engined, front-wheel drive coupe produced by Mitsubishi Motors between 1994 and 2000. It was originally planned to be exclusively for the Japanese domestic market, although its popularity as a grey market import to th ...

in 1994.

INVECS-III

The third version of ''INVECS'' was further advanced, and now offered a

continuously variable transmission A continuously variable transmission (CVT) is an automatic transmission that can change seamlessly through a continuous range of gear ratios. This contrasts with other transmissions that provide a limited number of gear ratios in fixed steps. ...

when in ''fully-automatic'' mode, or a simulated six-speed ''clutchless manual'' if the driver wished to control the up- and down-shift points. A further innovation for Mitsubishi was the introduction of paddle-shifters allowing the driver to make manual gear changes while their hands remain on the steering wheel."Mitsubishi Motors Exhibits at 39th Tokyo Motor Show"
, Mitsubishi Motors press release, September 28, 2005 ''INVECS-III'' was introduced in 2000, in the eighth generation of the

Mitsubishi Lancer The Mitsubishi Lancer is an automobile produced by the Japanese manufacturer Mitsubishi Motors since 1973. The Lancer has been marketed as the Colt Lancer, Dodge Colt, Plymouth Colt, Chrysler Valiant Lancer, Chrysler Lancer, Eagle Summit, Hin ...

."Line-off ceremony marks start of CVT mass production"
Mitsubishi Motors press release, April 19, 2000
Mitsubishi Motors press release, May 9, 2000 The paddle-shift option was first seen on the second generation Mitsubishi Outlander which debuted in 2005."Mitsubishi Motors launches all-new Outlander"
Mitsubishi Motors press release, October 17, 2005

References

External links

*Mitsubishi Motors technology library page

{{Mitsubishi Motors technologies Automatic transmission tradenames Mitsubishi Motors technologies Continuously variable transmissions