Hybrid vehicle and method of controlling the same

摘要

A controller executes an engine intermittent operation to stop operation of an engine when a given engine operation stop condition is satisfied and to start the engine when a given engine start condition is satisfied, makes an in-cylinder injection valve abnormality determination while causing a total amount of fuel to be injected from the in-cylinder injection valve, and makes a port injection valve abnormality determination while causing the total amount of fuel to be injected from the port injection valve. The controller inhibits execution of the engine intermittent operation until the in-cylinder injection valve abnormality determination has been made and the port injection valve abnormality determination has been made.

主权项

1. A hybrid vehicle, comprising:
an internal combustion engine including an in-cylinder injection valve that directly injects fuel into a combustion chamber, and a port injection valve that injects the fuel into an intake port that communicates with the combustion chamber; an electric motor; a power transmission mechanism that couples a drive shaft of the vehicle with the engine so that torque can be transmitted therebetween, and couples the drive shaft with the electric motor so that torque can be transmitted therebetween; and an electronic control unit programed to:
control output torque of the engine and output torque of the electric motor so as to apply torque equal to user-requested torque to the drive shaft, the user-requested torque being torque required to be applied to the drive shaft and being determined according to an amount of accelerator operation by a user;execute an engine intermittent operation to stop operation of the engine when a given engine operation stop condition is satisfied and to start the engine when a given engine start condition is satisfied;make an in-cylinder injection valve abnormality determination as to whether an abnormality occurs to the in-cylinder injection valve while causing a total amount of fuel included in an air-fuel mixture supplied to the engine to be injected from the in-cylinder injection valve;make a port injection valve abnormality determination as to whether an abnormality occurs to the port injection valve while causing the total amount of fuel included in the air-fuel mixture supplied to the engine to be injected from the port injection valve when the in-cylinder injection valve abnormality determination is not made; andinhibit execution of the engine intermittent operation until the in-cylinder injection valve abnormality determination has been made and the port injection valve abnormality determination has been made.