Automobile and controlling method for automobile
First Claim
1. An automobile including an internal combustion engine capable of outputting a power to a drive shaft comprising:
- a target power setting device that sets a target power to be output by the internal combustion engine or a target operating point based on a power requirement to be output to the drive shaft and a characteristic of an efficiency with respect to an output of the internal combustion engine;
an operation control device that controls operation of the internal combustion engine such that the internal combustion engine is operated with the target power or at the target operating point that has been set; and
a power input/output/consumption device that inputs, outputs, or consumes a power which is equivalent to a difference between the power requirement and either one of the target power and a power corresponding to the target operating point.
1 Assignment
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Accused Products
Abstract
A hybrid automobile runs by transmitting a power from an engine and a power from a motor-generator MG2, and can store a part of the power from the engine and an electric power generated by a motor-generator MG1. In this hybrid automobile, a power requirement Pr* of a drive shaft is set based on an accelerator opening, and a battery charge electric power Pbi is set based on SOC, and the sum of the power requirement Pr* and the battery charge electric power Pbi are set as an engine target power Pe*. When the engine target power Pe* is less than a predetermined minimum value Plow, the engine target power Pe* is changed to the minimum value Plow. Further, in accordance with this change, the battery charge electric power Pbi is also changed, and the engine and the motor-generators MG1, MG2 are operated. Since the minimum value Plow is set to be a value such that the efficiency with respect to the output of the engine becomes optimal, it is possible to prevent the engine from being operated in a low output region where the efficiency is low.
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Citations
19 Claims
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1. An automobile including an internal combustion engine capable of outputting a power to a drive shaft comprising:
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a target power setting device that sets a target power to be output by the internal combustion engine or a target operating point based on a power requirement to be output to the drive shaft and a characteristic of an efficiency with respect to an output of the internal combustion engine;
an operation control device that controls operation of the internal combustion engine such that the internal combustion engine is operated with the target power or at the target operating point that has been set; and
a power input/output/consumption device that inputs, outputs, or consumes a power which is equivalent to a difference between the power requirement and either one of the target power and a power corresponding to the target operating point. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An automobile including an internal combustion engine capable of outputting a power to a drive shaft, comprising:
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target power setting means for setting a target power to be output by the internal combustion engine or a target operating point based on a power requirement to be output to the drive shaft and a characteristic of an efficiency with respect to an output of the internal combustion engine;
operation control means for controlling operation of the internal combustion engine such that the internal combustion engine is operated with the target power or at the target operating point that has been set; and
power input/output/consumption means for inputting, outputting, or consuming a power which is equivalent to a difference between the power requirement and either one of the target power and a power corresponding to the target operating point.
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19. A controlling method for an automobile including an internal combustion engine capable of outputting a power to a drive shaft, comprising the steps of:
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setting a target power to be output by the internal combustion engine or a target operating point based on a power requirement to be output to the drive shaft and a characteristic of an efficiency with respect to an output of the internal combustion engine;
controlling operation of the internal combustion engine such that the internal combustion engine is operated with the target power or at the target operating point that has been set; and
inputting, outputting, or consuming a power which is equivalent to a difference between the power requirement and either one of the target power and a power corresponding to the target operating point.
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Specification