Patent ID: 6383106
Filing Date: 2002-05-07
Classification: B60K,B60W,F16H,Y02T,Y10S,Y10T

Abstract:
A power transmitting system for a hybrid motor vehicle having, an internal combustion engine (1) mounted on said vehicle for outputting a driving force to wheels (9,9) via an output shaft (1a), a continuously variable transmission (5) coaxially and rotatably connected to said output shaft (1a) for changing a rotating speed thereof, a battery (14) mounted on said hybrid vehicle for storing and providing an electric energy therefrom to various electric equipment, and a pair of inverters (15,16) electrically connected to said battery (14) for changing a type of electric currents, comprising:a first motor (2) coaxially and mechanically connected to said output shaft (1a) and electrically connected to said inverter (15) for assisting power to said wheel and for being usable as a generator in order to re-charge said battery (14) if said first motor (2) has an abundant energy; a second motor (4) interposed between said first motor (2) and said transmission (5) and electrically connected to said inverter (16) for assisting said engine (1) and for being usable as said generator in order to re-charge said battery (14) if said second motor (4) has said abundant energy; a planetary gear (3) interposed between said first motor (2) and said second motor (4) for alternatively and effectively using said motors (2,4) so as to be interchangeably usable not only for assisting said engine (1) but also for charging said battery (14) as required; an intentional condition judging system (11) for detecting operational conditions of a driver and for outputting an intentional decision signal, a driving control judging system (12) for detecting control conditions of said vehicle and for outputting a control signal, a running condition judging system for detecting running condition of said vehicle and for outputting a driving condition signal; and a monitor and control system (10) responsive to said intentional decision signal, said control signal and said driving condition signal for concentrically and synthetically controlling said engine (1) so as to assist said engine (1) by effectively and economically using both said motors (2, 4) and to be usable as an engine brake by supplying said electric energy from said first motor (2) to said second motor (4).