INVECS (Intelligent & Innovative Vehicle Electronic Control System)
, Mitsubishi Motors website is the brand name used by Mitsubishi Motors for its electronic

automatic transmission An automatic transmission (sometimes abbreviated to auto or AT) is a multi-speed transmission (mechanics), transmission used in internal combustion engine-based motor vehicles that does not require any input from the driver to change forward gea ...

technology.

INVECS

The first generation of ''INVECS'' debuted in the seventh generation of the Mitsubishi Galant, 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 complet ...

", adapted the shift patterns in the automatic gearbox "on the fly" according to the driver's style. The four-wheel drive, four-wheel steering, traction control system 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's Tiptronic 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 '' clutchless 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 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."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