Hybrid vehicle and method of controlling hybrid vehicle
First Claim
Patent Images
1. A hybrid vehicle comprising:
- an engine;
drive wheels;
a starter motor configured to start up the engine;
an auxiliary battery configured to supply electric power to auxiliary machines including the starter motor;
a motor generator configured to be coupled to the drive wheels;
a clutch configured to couple the engine and the drive wheels to each other;
a notification apparatus configured to notify a user of information regarding the hybrid vehicle; and
an electronic control unit configured to execute one of first engine start-up control and second engine start-up control to start up the engine, the first engine start-up control being control for starting up the engine using the starter motor, and the second engine start-up control being control for starting up the engine by coupling the engine and the drive wheels to each other using the clutch while the hybrid vehicle is traveling, andthe electronic control unit being configured to notify the user of information for prompting the user to stop the hybrid vehicle in a predetermined notification mode using the notification apparatus, when following conditions i) and ii) are both satisfied while the hybrid vehicle is performing electric traveling using the motor generator with the engine stopped,i) the electronic control unit determines that the motor generator is in a malfunctioning state, and the engine needs to be started up, andii) the electronic control unit determines that a vehicle speed of the hybrid vehicle is lower than a threshold.
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Abstract
In a hybrid vehicle, in order to start up an engine, an ECU executes one of first engine start-up control for starting up the engine using a starter motor and second engine start-up control for starting up the engine by coupling the engine to drive wheels using a clutch while the hybrid vehicle is traveling. The ECU notifies the user of information for prompting the user to stop the hybrid vehicle in a predetermined notification mode using a notification apparatus, when the ECU determines that the following conditions i) and ii) are both satisfied while the hybrid vehicle is performing electric traveling,
- i) a motor generator is in a malfunctioning state, and the engine needs to be started up, and
- ii) a vehicle speed is lower than a threshold.
5 Citations
9 Claims
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1. A hybrid vehicle comprising:
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an engine; drive wheels; a starter motor configured to start up the engine; an auxiliary battery configured to supply electric power to auxiliary machines including the starter motor; a motor generator configured to be coupled to the drive wheels; a clutch configured to couple the engine and the drive wheels to each other; a notification apparatus configured to notify a user of information regarding the hybrid vehicle; and an electronic control unit configured to execute one of first engine start-up control and second engine start-up control to start up the engine, the first engine start-up control being control for starting up the engine using the starter motor, and the second engine start-up control being control for starting up the engine by coupling the engine and the drive wheels to each other using the clutch while the hybrid vehicle is traveling, and the electronic control unit being configured to notify the user of information for prompting the user to stop the hybrid vehicle in a predetermined notification mode using the notification apparatus, when following conditions i) and ii) are both satisfied while the hybrid vehicle is performing electric traveling using the motor generator with the engine stopped, i) the electronic control unit determines that the motor generator is in a malfunctioning state, and the engine needs to be started up, and ii) the electronic control unit determines that a vehicle speed of the hybrid vehicle is lower than a threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of controlling a hybrid vehicle, the hybrid vehicle including an engine, drive wheels, a starter motor, an auxiliary battery, a motor generator, a clutch, a notification apparatus, and an electronic control unit,
the starter motor being configured to start up the engine, the auxiliary battery being configured to supply electric power to auxiliary machines including the starter motor, the motor generator being configured to be coupled to the drive wheels, the clutch being configured to couple the engine and the drive wheels to each other, and the notification apparatus being configured to notify a user of information regarding the hybrid vehicle, the method comprising: -
executing, by the electronic control unit, one of first engine start-up control and second engine start-up control to start up the engine, the first engine start-up control being control for starting up the engine using the starter motor, and the second engine start-up control being control for starting up the engine by coupling the engine and the drive wheels to each other using the clutch while the hybrid vehicle is traveling; and notifying, by the notification apparatus, the user of information for prompting the user to stop the hybrid vehicle in a predetermined notification mode, when following conditions i) and ii) are both satisfied while the hybrid vehicle is performing electric traveling using the motor generator with the engine stopped, i) the electronic control unit determines that the motor generator is in a malfunctioning state, and the engine needs to be started up, and ii) the electronic control unit determines that a vehicle speed of the hybrid vehicle is lower than a threshold.
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Specification