Hybrid electric vehicle and control method of the same
AssigneeToyota Jidosha Kabushiki Kaisha
InventorYuki Yamada
Life of this patent
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Abstract
Execution of control for first spot region of performing traveling by controlling an engine and a motor such that the electricity storage ratio of an electricity storage apparatus becomes smaller before a first spot region presumed or set as a spot or a region preferred to be reached in a state in which the electricity storage ratio of the electricity storage apparatus is small is prohibited when execution of control for second spot region of traveling by only a motive power from the motor by stopping the engine is presumed or planned within a predetermined distance range in a second spot region presumed or set as a spot or a region in which electrically-powered traveling of traveling by only the motive power from the motor by stopping the engine is set.
Claims4
A hybrid electric vehicle comprising:
- a global positioning system (GPS) configured to detect a current position of the hybrid electric vehicle based on signals transmitted from GPS satellites;
- a navigation system including a map information database, the navigation system being configured to plan a traveling route from the current position to a destination based on the map information database;
- an engine configured to output motive power for traveling;
- a motor configured to output motive power for traveling;
- an electricity storage apparatus configured to exchange electricity with the motor;
- and
- a controller configured to execute at least one of a first control associated with a first region, a second control associated with a second region, or a third control, wherein
- the first control causes the hybrid electric vehicle to travel by controlling the engine and the motor such that a state of charge of the electricity storage apparatus decreases before entering the first region, the first region being a region that is preferred to be reached while the state of charge is low,
- the second control causes the hybrid electric vehicle to travel using only the motive power from the motor by stopping the engine in the second region set as an electrically-powered traveling region,
- the third control causes the hybrid electric vehicle to travel by controlling the engine and the motor to increase the state of charge before entering the second region, and
- the controller is configured to
- prohibit the first control in a case where execution of the second control is scheduled within a predetermined distance range from the current position, and
- refrain from performing the second control unless the execution of the second control is scheduled within the predetermined distance range.
A control method of a hybrid electric vehicle, the hybrid electric vehicle including
- a global positioning system (GPS) configured to detect a current position of the hybrid electric vehicle based on signals transmitted from GPS satellites,
- a navigation system including a map information database, the navigation system being configured to plan a traveling route from the current position to a destination based on the map information database,
- an engine configured to output motive power for traveling,
- a motor configured to output motive power for traveling,
- an electricity storage apparatus configured to exchange electricity with the motor, and
- a controller configured to execute at least one of a first control associated with a first region, a second control associated with a second region, or a third control, the control method comprising:
- performing the first control by controlling the engine and the motor such that a state of charge of the electricity storage apparatus decreases before entering the first region, the first region being a region that is preferred to be reached while the state of charge is low;
- performing the second control by traveling using only the motive power from the motor by stopping the engine in the second region set as an electrically-powered traveling region;
- performing the third control by controlling the engine and the motor to increase the state of charge before entering the second region;
- prohibiting the first control in a case where execution of the second control is scheduled within a predetermined distance range from the current position;
- and
- refraining from performing the second control unless the execution of the second control is scheduled within the predetermined distance range.
Dependencies are inferred from the claim text.