ELECTRIC CAR TRANSMISSION Russian patent published in 1998 - IPC

FIELD: mechanical engineering; stepless transmission of electric car. SUBSTANCE: flywheel, electric machines and drive shaft of driving wheels are coupled through planetary friction variable-speed drive which has two degrees of freedom. Carrier of variable-speed drive is made for mechanical coupling with car driving wheels and for braking. Some central disks of variable-speed drive are made for mechanical coupling with flywheel, and others, for braking. One electric machine is made for mechanical coupling of its shaft with one of central disks of variable-speed drive, minimum, and second electric machine is made for connection both with carrier and with central disks. Electric machines are connected to each other and to power supply source through converters. EFFECT: increased transmission ratio control range, reduced power of electric machines and specific power of supply source. 3 cl, 1 dwg