초록 ▼

A control apparatus is used to control a hybrid vehicle having an internal combustion engine, a stepwise variable transmission capable of automatic speed shifting, a clutch disposed between the internal combustion engine and the stepwise variable transmission for discontinuing and establishing power

A control apparatus is used to control a hybrid vehicle having an internal combustion engine, a stepwise variable transmission capable of automatic speed shifting, a clutch disposed between the internal combustion engine and the stepwise variable transmission for discontinuing and establishing power transfer to and from the stepwise variable transmission, an electric motor, etc. The control apparatus calculates a timing of the stepwise variable transmission starting an automatic shifting operation, and gradually decreases the torque assist based on the motor torque Tm of the electric motor prior to the start of the shifting operation, so as to reduce the stepped change in the drive torque that occurs when the engine torque Te is eliminated upon disengagement of the clutch during the shifting operation. This operation of the control apparatus also gentles or reduces the gradient of torque change. The shock at the time of shifting is thus reduced.

대표청구항 ▼

1. A control apparatus for a hybrid vehicle including: an internal combustion engine; a stepwise variable transmission capable of automatic shifting; a clutch that is disposed between the internal combustion engine and the stepwise variable transmission and that discontinues and establishes a power

1. A control apparatus for a hybrid vehicle including: an internal combustion engine; a stepwise variable transmission capable of automatic shifting; a clutch that is disposed between the internal combustion engine and the stepwise variable transmission and that discontinues and establishes a power transfer between the internal combustion engine and the stepwise variable transmission; and an electric motor that is disposed between the stepwise variable transmission and a drive wheel and that drives the drive wheel and performs regenerative power generation using the drive wheel, the control apparatus comprising:a shift controller that predicts a shifting operation of the stepwise variable transmission, performs the shifting operation of the stepwise variable transmission at a start of elimination of a drive torque of the internal combustion engine caused by a disengagement of the clutch, and recovers the drive torque of the internal combustion engine by re-engaging the clutch, when the hybrid vehicle is running coordinately by the drive torque generated by the internal combustion engine and a drive torque generated by the electric motor; and a motor controller that increases and decreases the drive torque of the electric motor based on a predicted automatic shifting operation of the stepwise variable transmission.