Abstract: A race simulation system is provided for remotely simulating a race between a plurality of participants. The simulation system includes a tracker for tracking the position of the participants as they move during the race and for generating corresponding positional data. This positional data is then transmitted through a communications channel to one or more remote users. Each remote user has a terminal which is operable to recreate a simulation of the race using the received positional data and stored layout data which defines the layout of the course over which the participants move.

Abstract: An electric motor is described in which a position sensor is provided which generates a plurality of output signals each dependent upon the relative position of the rotor and the stator. These signals are processed to generate a set of commutation control signals for controlling the commutation of the drive current to the stator coils. In one embodiment, a phase shift can be electronically applied to each of the position sensor coils to adjust the timing of the switching in accordance with the motor's current speed and load demands. In another embodiment, these signals are also used in a servo-control loop, in order to control, for example, the speed and/or output torque of the motor.