Control device for hybrid vehicle

摘要

A control device for a hybrid vehicle which comprises an engine (2) and a motor-generator (3) that is capable of generating electrical power as power sources, and in which the power of at least one of the engine (2) and the motor-generator (3) is transmitted to an output shaft (5) for driving the hybrid vehicle. The control device comprises a battery (8) which is capable of supplying energy to the motor-generator (3), a state of charge measuring section (12) for measuring the state of charge of the battery (8), and a drive control section that preliminarily stores information of a motor drive permissible vehicle speed below which a motor drive mode, in which the engine (2) outputs no power and the motor is operated solely for driving the hybrid vehicle, is employed. The drive control section is adapted to control so to increase the motor drive permissible vehicle speed when the state of charge of the battery (8) measured by the state of charge measuring section (12) is equal to or greater than a predetermined value.