Patent ID: 6131680
Filing Date: 2000-10-17
Classification: B60K,B60L,B60W,Y02T,Y10S,Y10T

Abstract:
A method of controlling a power output apparatus, said method comprising the steps of:(a) providing (1) an engine having an output shaft; (2) a first motor having a rotating shaft, said first motor inputting and outputting power to and from said rotating shaft; (3) a second motor for inputting and outputting power to and from a drive shaft; and (4) a three shaft-type power input/output means having three shafts respectively linked with said drive shaft, including said output shaft and said rotating shaft as two shafts of said three shafts, when powers are input to and output from any two shafts among said three shafts, said power input/output means inputting and outputting power, which is determined according to the input and output powers, to and from a residual one shaft of said three shafts; and (5) storage battery means being discharged to supply electric power required for driving said second motor;(b) specifying a target power to be output to said drive shaft, based on an instruction of a user;(c) when the target power specified in said step (b) exceeds a predetermined power controlling operation of said engine, based on the predetermined power;(d) driving and controlling said first motor, in order to enable the power output from said engine controlled in said step (c) to be subjected to torque conversion by said three shaft-type power input/output means, said first motor, and said second motor and to be output to said drive shaft as the predetermined power; and(e) driving and controlling said second motor, in order to make the power output from said engine equal to a difference between the target power and power output via said three shaft-type power input/output means to said drive shaft.