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Powerful algorithms written to simplify future DCT control
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01/05/2007
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A new player in the dual clutch transmissions (DCT) field, Vocis Driveline Controls, has developed a control system it claims will bring vehicles to market more efficiently and help vehicle OEMs to match the feel of their transmissions to their vehicle brands.
A new player in the dual clutch transmissions (DCT) field, Vocis Driveline Controls, has developed a control system it claims will bring vehicles to market more efficiently and help vehicle OEMs to match the feel of their transmissions to their vehicle brands.
The new technology, provisionally called Siena, has already been successfully integrated with an engineering development vehicle.
“A dual clutch transmission is mechanically well understood but controlling it is extremely complex,” said managing director Mike Everitt. “It’s affordable and robust, but the quality of the transmission as perceived by the driver is largely dependent on the quality of the control strategies. Getting this right has previously proved exceptionally time-consuming.”
The Siena control platform is independent of any specific hardware technology or vehicle manufacturer. It can also integrate controls for active differentials and torque management and coordinate with the complete range of chassis systems, including antilock braking, electronic stability control and traction control.
At its heart is a suite of robust algorithms. Compared with first generation systems, the Vocis code is said to be more modular, more compact and more efficient, providing faster development and an increased ability to precisely match brand requirements. The software can run on Vocis’ own-design TMS20 transmission controller platform, or on the vehicle manufacturer’s preferred controller hardware.
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Author
Roger Bishop
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