초록 ▼

In a state a vehicle is stopped at an intersection, an infinitely variable transmission is in a neutral position, a motor/generator rotates with a low speed, an oil pump and an auxiliary equipment are in rotating state. At that time, an input clutch is disengaged, and the internal engine is stopped.

In a state a vehicle is stopped at an intersection, an infinitely variable transmission is in a neutral position, a motor/generator rotates with a low speed, an oil pump and an auxiliary equipment are in rotating state. At that time, an input clutch is disengaged, and the internal engine is stopped. When the vehicle is started, a continuously variable transmission performs continuous shift control from the neutral position using hydraulic pressure from an oil pump, and the rotation of the motor/generator is transmitted to drive wheels via a ring gear of a planetary gear. After the vehicle has started driving, the input clutch is engaged and the internal engine is started. The vehicle is driven while the motor/generator assists driving or the motor/generator charges batteries based on operation of the internal engine.

대표청구항 ▼

[ What is claimed is:] [1.]1. A hybrid drive system, comprising:an internal engine;a motor/generator which is rotated and generates electric energy; andan infinitely variable transmission, which comprises a continuously variable transmission arranged between a primary shaft and a secondary shaft and

[ What is claimed is:] [1.]1. A hybrid drive system, comprising:an internal engine;a motor/generator which is rotated and generates electric energy; andan infinitely variable transmission, which comprises a continuously variable transmission arranged between a primary shaft and a secondary shaft and shifts a torque ratio between these shafts continuously, a planetary gear unit comprising a first rotational element interlocking with a primary side of the continuously variable transmission mounted on the primary shaft, a second rotational element interlocking with a secondary side of the continuously variable transmission mounted on the secondary shaft, and a third rotational element combining rotations of the first rotational element and the second rotational element in a state where torque circulation occurs and the combined rotation is output to driving wheels, the infinitely variable transmission performing a neutral control self-converging in order that the third rotational element is in a neutral position and a shift control shifting continuously from the neutral position to the continuously variable transmission, wherein outputs from at least one of the motor/generator and the internal engine is transmitted to the drive wheels via the infinitely variable transmission.