| 摘要 |
<p>A control system (10) for an electric motor (19) having an integral flywheel rotor (16). The motor (19) includes a stator (12) mounted co-axially with the engine crankshaft and a rotor (16) surrounding the stator (12). A sensor (30, 32, 34, 36) is positioned near the rotor (16) for sensing its rotational speed. The sensor (30, 32, 34, 36) is coupled to a controller (20). The controller (20) is operable to deliver an output signal to the stator (12) to start the internal combustion engine. While the engine is starting, the processor steps the starter motor (19) from a low speed to a high speed. Once the engine has started and is rotating at a speed greater than a trigger speed, the processor delivers another output signal such that the motor (19) is commutated at a speed that is less than the speed of the rotor (16) to generate a speed slip. By commutating the motor (19) in this manner, it acts as a generator. The speed slip is regulated when the motor (19) is generating electric power so that the motor (19) produces a constant output voltage. <IMAGE></p> |
