HYBRID VEHICLE DRIVE CONTROL DEVICE

摘要

A drive control device for a hybrid vehicle is provided with a differential device including four rotary elements; and an engine, first and second electric motors and an output rotary member respectively connected to the four rotary elements. One of the four rotary elements is constituted by a rotary component of a first differential mechanism and a rotary component of a second differential mechanism selectively connected through a clutch, and one of the rotary components is selectively fixed to a stationary member through a brake. The drive control device is configured to implement a crank position adjustment control for adjusting an angular position of a crankshaft of the engine with the first and second electric motors, with the clutch engaged and the brake released, when a required torque to implement the crank position adjustment is equal to or larger than a threshold value, and to implement the crank position adjustment with the first electric motor, with the clutch released, when the required torque is smaller than the threshold value.

主权项

1. A drive control device for a hybrid vehicle provided with: a differential device which includes a first differential mechanism and a second differential mechanism and which has four rotary elements; and an engine, a first electric motor, a second electric motor and an output rotary member which are respectively connected to said four rotary elements, and wherein one of said four rotary elements is constituted by a rotary component of said first differential mechanism and a rotary component of said second differential mechanism which are selectively connected to each other through a clutch, and one of the rotary components of said first and second differential mechanisms which are selectively connected to each other through said clutch is selectively fixed to a stationary member through a brake, said drive control device comprising:
a crank position adjustment control portion configured to implement a crank position adjustment control for adjusting an angular position of a crankshaft of said engine with said first and second electric motors, in an engaged state of said clutch and in a released state of said brake, when a torque required to implement the crank position adjustment of said engine is equal to or larger than a predetermined threshold value, and to implement the crank position adjustment of said engine with said first electric motor, in a released state of said clutch, when the torque required to implement the crank position adjustment of said engine is smaller than said threshold value.