초록 ▼

In an engine-motor hybrid vehicle, vehicle drive regions are divided into a plurality of groups specified by a plurality of operation state variables. A learning variable set for each drive region is updated according to an amount of a power state of an engine, when the vehicle is in a steady state

In an engine-motor hybrid vehicle, vehicle drive regions are divided into a plurality of groups specified by a plurality of operation state variables. A learning variable set for each drive region is updated according to an amount of a power state of an engine, when the vehicle is in a steady state running. The learning variable indicates a change in the power state amount with age. When an engine power demand value is determined, it is corrected by using the learning variable of a selected drive region to calculate a corrected engine power demand value compensating a change in the engine with age. In this manner, the engine power is controlled.

대표청구항 ▼

[ What is claimed is:] [6.]6. A control apparatus for an engine-motor hybrid vehicle having an engine, a power transmission device including a first rotary electric machine connected with an output shaft of the engine and determining a number of rotations of the engine and a second rotary electric m

[ What is claimed is:] [6.]6. A control apparatus for an engine-motor hybrid vehicle having an engine, a power transmission device including a first rotary electric machine connected with an output shaft of the engine and determining a number of rotations of the engine and a second rotary electric machine connected with an output shaft of the vehicle and determining a driving force of the vehicle, and an electricity storage device for supplying an electric power to the first and second rotary electric machines and receiving the electric power therefrom, the control apparatus comprising:means for calculating a vehicle driving torque demand value based on information of operation of an accelerator pedal, a braking pedal, and a shift lever;means for calculating a vehicle driving power demand value based on the vehicle driving torque demand value and a vehicle speed;means for calculating a charge/discharge power demand value based on a storage state of the electricity storage device;means for calculating an engine power demand value based on the vehicle driving power demand value and the charge/discharge power demand value;means for calculating an engine speed demand value based on the engine power demand value and a stored characteristic of the engine;means for calculating a first torque demand value to be generated by the first rotary electric machine based on the engine speed demand value;means for calculating a second torque demand value to be generated by the second rotary electric machine based on the first torque demand value and the vehicle driving torque demand value;means for controlling the first and second rotary electric machines, based on the first and second torque demand values, respectively;means for setting a learning variable learnable for each of the operation regions, the operation regions being specified by an operation state variable including the vehicle driving torque and at least one of the vehicle speed and the number of rotations of the output shaft of the engine;means for determining a power state amount indicating a predetermined power state of the engine including a charge/discharge power when a predetermined vehicle operation condition regarded as a steady operation state establishes, and updating the learning variable of the operation region selected according to a value of the operation state variable, based on the power state amount;means for correcting the engine power demand value or the vehicle driving power demand value based on the learning variable; andmeans for controlling the engine power based on the corrected engine power demand value.