| 主权项 |
1. A control apparatus which is applied to a hybrid vehicle,
the hybrid vehicle including: an internal combustion engine; an electric motor being connected electrically with a battery via an inverter; an output portion transmitting torque to a drive wheel; a power split mechanism having a first rotational element, a second rotational element, and a third rotational element which are capable of differentially rotating with respect to each other, the first rotational element being connected to an output shaft of the internal combustion engine, the second rotational element being connected to an output shaft of the electric motor, and the third rotational element being connected to a transmission member of the output portion; and an engagement mechanism which is capable of switching between an engagement state where the output shaft of the electric motor is locked so as not to rotate and a release state where a rotation of the output shaft of the electric motor is permitted, a control apparatus including an electronic control unit (ECU) including a computer having a microprocessor, a RAM, and a ROM, wherein signals are input to the ECU from a plurality of sensors located on the hybrid vehicle, the ECU configured to: limit, in a case that a monitoring target temperature to be monitored when the electric motor is controlled becomes equal to or higher than a predetermined upper limit temperature when torque is output from the electric motor, an output of the torque from the electric motor, the monitoring target temperature being a temperature of the electric motor or the inverter, wherein the ECU controls the electric motor and the engagement mechanism, and the ECU is programmed to: first execute a rotating speed control which makes the electric motor output a torque according to an output torque of the internal combustion engine so that a rotating speed of the electric motor becomes zero, in a case that a predetermined engagement condition for a permission to switch a state of the engagement mechanism from the release state to the engagement state is satisfied while the internal combustion engine is operated; and programmed to subsequently execute an engagement control which switches a state of the engagement mechanism to the engagement state when a predetermined engagement switching condition is satisfied during an execution of the rotating speed control, and the ECU is programmed to prohibit an execution of the engagement control, when the monitoring target temperature becomes equal to or higher than a predetermined engagement prohibition temperature which is lower than the predetermined upper limit temperature during the execution of the rotating speed control. |
