BMW to offer automatic transmission
BMW Motorrad are set to introduce an automatic transmission system for selected models, aimed at making riding “simpler and more comfortable”. The system, called Automated Shift Assistant (ASA), can allow riders to change gears in the traditional way, or let shifts be made completely automatically.

An evolution of BMW’s Shift Assistant Pro, ASA employs two electromechanical actuators that automate clutch and gearshift operation. This eliminates the need for a clutch lever, but the shifter pedal is retained.
In 'M' shift mode, gear changes are still made by foot, allowing the rider control of when to shift up or down. In 'D' shift mode, ASA automatically selects the shift points via an engine control unit, with no rider input required.

Along with a gearshift sensor, which is actuated by the conventional foot pedal when in M mode, additional sensors determine the revs of the transmission input shaft and clutch position. These values are transmitted to a transmission control unit, closely linked with the engine control unit, for modelling and control of the clutch and shift actuators. The clutch actuator regulates the required slip, engages the clutch when changing gear and disengages it when stopping.
Failsafes are built in, meaning that if the rider misses a downshift when in M mode, ASA automatically shifts down to prevent the bike from stalling.

In each ASA mode, gear changes are said to be perfectly executed, with a smooth interruption of traction, resulting in more efficient acceleration and increased stability. BMW says that ASA largely eliminates the jolt from a manual transmission when shifting up, with downshifts also designed to be as smooth as possible, minimising chassis disturbances.
Model-specific characteristics for the automated shift function are assigned to the riding modes and control systems, ensuring optimal shift behaviour.

According to BMW, ASA provides fast, rev- and load-adapted shift sequences, eliminates stalling and ensures the rider’s “resources” and “concentration” are not taken up with clutch and gear operation. The result is easier, smoother riding, especially in difficult or demanding situations, like hill starts and stop-start traffic.
ASA will be optionally available on selected new BMW models, with more details to be announced later this year.