Hybrid vehicle and control method for same
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsKoichiro Muta, Yukio Kobayashi, Takuro Shimazu, Yusuke Saigo
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Abstract
The hybrid vehicle includes an engine, a motor connected to the engine, and an electronic control unit configured to control the motor to execute motoring to rotate a crankshaft of the engine. The electronic control unit is configured to execute speed-drop offset control when a rotation speed of the engine falls below a first rotation speed that is lower than a self-sustaining rotation speed of the engine while the engine is operated in a self-sustaining manner at the self-sustaining rotation speed.
Claims7
A hybrid vehicle comprising:
- an engine;
- a motor connected to the engine;
- and
- an electronic control unit configured to control the motor to execute motoring to rotate a crankshaft of the engine, wherein the electronic control unit is configured to execute speed-drop offset control when a rotation speed of the engine falls below a first rotation speed that is lower than a self-sustaining rotation speed of the engine while the engine is operated in a self-sustaining manner at the self-sustaining rotation speed, the speed-drop offset control being control for executing the motoring such that the rotation speed of the engine does not fall below the first rotation speed, and the speed-drop offset control being control for executing the motoring such that the rotation speed of the engine does not fall below a second rotation speed that is higher than the first rotation speed and lower than the self-sustaining rotation speed.
A control method for a hybrid vehicle, the hybrid vehicle being configured to execute motoring to rotate a crankshaft of an engine by a motor, the control method comprising
- executing speed-drop offset control when a rotation speed of the engine falls below a first rotation speed that is lower than a self-sustaining rotation speed of the engine while the engine is operated in a self-sustaining manner at the self-sustaining rotation speed,
- wherein the speed-drop offset control is control for executing the motoring such that the rotation speed of the engine does not fall below the first rotation speed, and
- wherein the speed-drop offset control is control for executing the motoring such that the rotation speed of the engine does not fall below a second rotation speed that is higher than the first rotation speed and lower than the self-sustaining rotation speed.
Dependencies are inferred from the claim text.