Drive control apparatus of series hybrid vehicle.

摘要

A hybrid series vehicle includes an engine (10), a generator (12), a battery (26) and a motor (14). The generator (12) is activated by electricity from the engine (10) so as to drive the motor (14). The battery (26) is charged by the electricity from the generator, being discharged so as to provide a voltage to the motor (14). In other words, the motor (14) is also activated by discharging electricity from the battery (26). There are three modes for activating the motor (14), i.e. a mode for activating the motor (14) only by the battery (26), a mode for activating it only by the generator (12), and a mode for activating it both by the battery (26) and the generator (12). The motor activating modes will be selected depending upon a required motor output. An output voltage of the generator (12) is determined so as to derive the required output according to the selected mode. The generator (12) is of a type which can output a voltage according to a field current. The field current of the generator (12) is controlled so as to obtain the required output voltage.