Abstract: An ECU uses a map or the like prepared in advance to calculate discharge allowable power indicating electric power that can be discharged from a power storage device. When the running mode is at the CD mode and an engine is stopped, the ECU increases the discharge allowable power to a predetermined value. Furthermore, even when the running mode is at the CS mode or even when the engine is operating, the ECU increases the discharge allowable power when a catalyst device provided at an exhaust pipe of the engine is currently warmed up.

Abstract: Motor traveling using only an output of a rotating electrical machine utilizing power of a vehicle-mounted power storage device is applicable to an electrically-powered vehicle, within a region inside a maximum output line in motor traveling. The maximum output line is composed of straight line portions defining an upper limit torque and an upper limit vehicle speed and a curved line portion defining upper limit output power, in motor traveling. When an output power upper limit value from the power storage device is limited due to an increase in a current load or a reduction in the SOC of the power storage device, a driving region to which motor traveling is applicable is narrowed. Operation in a high rotation region, where efficiency is reduced, is avoided by changing the upper limit vehicle speed in motor traveling in response to the SOC and/or the current load of the power storage device.

Abstract: In a hybrid vehicle, motor traveling using only an output of a rotating electric machine utilizing electric power of a vehicle-mounted power storage device is applicable in a region inside a maximum output line in motor traveling for an EV mode, and in a region inside a maximum output line in motor traveling for an EV mode. Each of the maximum output lines is composed of straight line portions defining an upper limit torque and an upper limit vehicle speed and a curved line portion defining upper limit output power, in motor traveling. Therefore, if a vehicle speed exceeds the upper limit vehicle speed in motor traveling in each of the EV mode and the HV mode, an engine is started. A motor traveling upper limit vehicle speed in the EV mode is set to be lower than a motor traveling upper limit vehicle speed in the HV mode.

Abstract: Motor traveling using only an output of a rotating electrical machine utilizing power of a vehicle-mounted power storage device is applicable to an electrically-powered vehicle, within a region inside a maximum output line in motor traveling. The maximum output line is composed of straight line portions defining an upper limit torque and an upper limit vehicle speed and a curved line portion defining upper limit output power, in motor traveling. When an output power upper limit value from the power storage device is limited due to an increase in a current load or a reduction in the SOC of the power storage device, a driving region to which motor traveling is applicable is narrowed. Operation in a high rotation region, where efficiency is reduced, is avoided by changing the upper limit vehicle speed in motor traveling in response to the SOC and/or the current load of the power storage device.

Abstract: An ECU uses a map or the like prepared in advance to calculate discharge allowable power indicating electric power that can be discharged from a power storage device. When the running mode is at the CD mode and an engine is stopped, the ECU increases the discharge allowable power to a predetermined value. Furthermore, even when the running mode is at the CS mode or even when the engine is operating, the ECU increases the discharge allowable power when a catalyst device provided at an exhaust pipe of the engine is currently warmed up.

Abstract: In a hybrid vehicle, motor traveling using only an output of a rotating electric machine utilizing electric power of a vehicle-mounted power storage device is applicable in a region inside a maximum output line in motor traveling for an EV mode, and in a region inside a maximum output line in motor traveling for an EV mode. Each of the maximum output lines is composed of straight line portions defining an upper limit torque and an upper limit vehicle speed and a curved line portion defining upper limit output power, in motor traveling. Therefore, if a vehicle speed exceeds the upper limit vehicle speed in motor traveling in each of the EV mode and the HV mode, an engine is started. A motor traveling upper limit vehicle speed in the EV mode is set to be lower than a motor traveling upper limit vehicle speed in the HV mode.