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Cylinder operation control apparatus for internal combustion engine

一种操作控制、内燃机的技术，应用在机械设备、发动机控制、发动机元件等方向，能够解决燃油经济性不能大大提高等问题

Inactive Publication Date: 2008-05-28
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, during deceleration operation, the friction due to normal actuation of the cylinder remains unchanged; therefore, fuel economy cannot be greatly improved

Method used

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  • Cylinder operation control apparatus for internal combustion engine
  • Cylinder operation control apparatus for internal combustion engine
  • Cylinder operation control apparatus for internal combustion engine

Examples

Experimental program
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Embodiment Construction

[0024] Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

[0025] The structure of a parallel hybrid vehicle including a hydraulic pressure supply device for a valve group according to a first embodiment of the present invention will be described below with reference to FIG. 1 .

[0026] As shown in FIG. 1, a hybrid vehicle includes an engine E, a motor M, and a transmission T, which are coupled in series with each other. Driving force generated by at least one of the engine E and the motor M is transmitted to front wheels Wf as drive wheels via, for example, a CVT (Continuously Variable Transmission) as a transmission T (which may be a manual transmission). When the drive force is transmitted from the drive wheels Wf to the motor M during deceleration of the hybrid vehicle, the motor M acts as a generator for applying a so-called regenerative braking force to the vehicle, that is, recovering the kinetic energy ...

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Abstract

A cylinder operation control apparatus includes: an internal combustion engine (E) which is adapted to operate in an all-cylinder activation mode and in a cylinder deactivation mode; a lift amount changing device (VT) which is associated with the internal combustion engine (E), and which enables switching between the all-cylinder activation mode and the cylinder deactivation mode by changing the amount of lifts of intake and exhaust valves (IV, EV) associated with the cylinders; a lift operating device ( 33 ) which is associated with the lift amount changing device (VT) to operate the same; a cylinder activation enforcing device ( 33 ') which is operatively disposed between the lift amount changing device (VT) and the lift operating device ( 33 ) so as to enforce the all-cylinder activation mode as necessary.

Description

technical field [0001] The present invention relates to a cylinder operation control device of an internal combustion engine capable of switching operation between an all cylinder actuation mode and a cylinder deactivation mode in which all cylinders of the engine are actuated , and in the cylinder deactivation mode, at least one cylinder of the engine is deactivated. Background technique [0002] Among hybrid vehicles, there is known a type of hybrid vehicle in which a cylinder deactivation operation is performed, for example, by controlling a valve group of an engine using a hydraulic control method in order to further improve fuel economy by reducing friction of the engine sex. In this type of hybrid vehicle, when the vehicle enters a deceleration state, a cylinder deactivation operation is performed simultaneously with a fuel cut operation in order to reduce engine friction, and therefore, the amount of increase in regenerative electric energy is equivalent to the amoun...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01L13/00F01L1/26F02D13/02F02D13/06
CPCF01L1/267F01L2105/00F01L13/0036F01L13/0005F01L2305/00
Inventor 长谷部哲也黑田惠隆杉山哲
Owner HONDA MOTOR CO LTD
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