MAN takes the man out of gear changing
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MAN IS to offer the semiautomatic mechanical transmission (SAMT) version of Eaton's recently introduced twin-splitter transmission within two years.
Eaton's SAMT, based on the twin splitter transmission gives 12 forward constant mesh ratios and three reverse. Gearshift is by air-charged cylinders controlled by solenoid valves activated electronically at the touch of a stalk switch mounted below the steering wheel. Sensors transmit operating data to an electronic control box. A dashboard display indicates the gear engaged and which shifts are possible.
Either single or multiple gear jumps may be instigated, but the clutch pedal is used only on start or stop.
SAMT provides the intermediate step to the fully automatic transmission, but may well he more popular as it leaves the driver with the final choice.