Engine system with cylinder number variable engine and method for controlling the engine system
First Claim
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1. An engine system comprising:
- an engine which has an engine shaft and plural cylinders and in which a number of activated cylinders among the plural cylinders is variable;
a continuously variable transmission configured to transmit a rotation of the engine shaft to wheels of a vehicle at a transmission ratio which is continuously variable; and
a controller configured to control the engine to change the number of activated cylinders keeping an engine power generated by the engine to be substantially constant.
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Abstract
An engine system includes an engine, continuously variable transmission and a controller. The engine has an engine shaft and plural cylinders. A number of activated cylinders among the plural cylinders is variable. The continuously variable transmission is configured to transmit a rotation of the engine shaft to wheels of a vehicle at a transmission ratio which is continuously variable. The controller is configured to control the engine to change the number of activated cylinders keeping an engine power generated by the engine to be substantially constant.
37 Citations
21 Claims
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1. An engine system comprising:
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an engine which has an engine shaft and plural cylinders and in which a number of activated cylinders among the plural cylinders is variable; a continuously variable transmission configured to transmit a rotation of the engine shaft to wheels of a vehicle at a transmission ratio which is continuously variable; and a controller configured to control the engine to change the number of activated cylinders keeping an engine power generated by the engine to be substantially constant. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An engine system comprising:
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an engine which has an engine shaft and plural cylinders and in which a number of activated cylinders among the plural cylinders is variable; transmission means for transmitting a rotation of the engine shaft to wheels of a vehicle at a transmission ratio which is continuously variable; and controlling means for controlling the engine to change the number of activated cylinders keeping an engine power generated by the engine to be substantially constant.
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20. A method for controlling an engine system, comprising:
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transmitting a rotation of an engine shaft of an engine to wheels of a vehicle at a transmission ratio which is continuously variable; and controlling the engine to change a number of activated cylinders keeping an engine power generated by the engine to be substantially constant.
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21. A vehicle comprising:
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an engine which has an engine shaft and plural cylinders and in which a number of activated cylinders among the plural cylinders is variable; a continuously variable transmission configured to transmit a rotation of the engine shaft to wheels of a vehicle at a transmission ratio which is continuously variable; and a controller configured to control the engine to change the number of activated cylinders keeping an engine power generated by the engine to be substantially constant.
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Specification