Hybrid vehicle control apparatus and control method

A hybrid vehicle control apparatus, comprising:

• a first electric motor;
• a second electric motor;
• an output shaft connected to a drive wheel;
• a differential gear device having at least four gear elements that are connected to an engine, the first and second electric motors, and the output shaft, respectively;
• generated control torque calculation processing means for calculating a control torque generated in association with an electrical control of the second electric motor;
• inertia torque calculation processing means for calculating a first inertia torque that occurs in rotational elements from a rotor of the first electric motor to a gear element of the differential gear device in association with a change in a motor rotation speed of the first electric motor, and a second inertia torque that occurs in rotational elements from a rotor of the second electric motor to a gear element of the differential gear device in association with a change in a motor rotation speed of the second electric motor;
• target control torque calculation processing means for calculating a control torque as a target for performing an electrical control of the first electric motor, based on the control torque and the first and second inertia torques;
• and
• torque control processing means for performing a torque control of the first electric motor in accordance with the control torque as the target.

A hybrid vehicle control apparatus, comprising:

• a first electric motor;
• a second electric motor;
• an output shaft connected to a drive wheel;
• a differential gear device having at least four gear elements that are connected to an engine, the first and second electric motors, and the output shaft, respectively;
• target output torque calculation processing means for calculating a target output torque of an output torque outputted to the output shaft;
• generated control torque calculation processing means for calculating a control torque generated in association with an electrical control of the second electric motor;
• inertia torque calculation processing means for calculating first and second inertia torques occurring in association with changes in motor rotation speeds of the first and second electric motors;
• target control torque calculation processing means for calculating, based on the control torque and the first and second inertia torques, a control torque as a target for performing an electrical control of the first electric motor so as to enable the target output torque to be outputted to the output shaft;
• and
• torque control processing means for performing a torque control of the first electric motor in accordance with the control torque as the target.

A hybrid vehicle control apparatus, comprising:

• a first electric motor;
• a second electric motor;
• an output shaft connected to a drive wheel;
• a differential gear device having at least four gear elements that are connected to an engine, the first and second electric motors, and the output shaft, respectively;
• target output torque calculation processing means for calculating a target output torque of an output torque outputted to the output shaft;
• generated control torque calculation processing means for calculating a control torque generated in association with an electrical control of the second electric motor;
• inertia torque calculation processing means for calculating a first inertia torque that occurs on rotational elements from a rotor of the first electric motor to a gear element of the differential gear device in association with a change in a motor rotation speed of the first electric motor, and a second inertia torque that occurs on rotational elements from a rotor of the second electric motor to a gear element of the differential gear device in association with a change in a motor rotation speed of the second electric motor;
• target control torque calculation processing means for calculating, based on the control torque and the first and second inertia torques, a control torque as a target for performing an electrical control of the first electric motor so as to enable the target output torque to be outputted to the output shaft;
• and
• torque control processing means for performing a torque control of the first electric motor in accordance with the control torque as the target.

A control method for a hybrid vehicle having a first electric motor and a second electric motor;

• an output shaft connected to a drive wheel;
• and a differential gear device having at least four gear elements that are connected to an engine, the first and second electric motors, and the output shaft, respectively, the control method for the hybrid type vehicle comprising:
• calculating a control torque generated in association with an electrical control of the second electric motor;
• calculating first and second inertia torques occurring in association with changes in motor rotation speeds of the first and second electric motors;
• calculating a control torque as a target for performing an electrical control of the first electric motor, based on the control torque and the first and second inertia torques;
• and
• performing a torque control of the first electric motor in accordance with the control torque as the target.