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Throttle valve control apparatus of an internal combustion engine

A control device and throttle valve technology, applied in engine control, fuel injection control, internal combustion piston engine, etc., can solve the problem of easy fluctuation of engine output power, and achieve the effect of reducing torque vibration

Inactive Publication Date: 2009-04-08
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Typically, when the throttle valve opening amount is changed, there is a response delay of the intake air, during which the engine output tends to fluctuate

Method used

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  • Throttle valve control apparatus of an internal combustion engine
  • Throttle valve control apparatus of an internal combustion engine
  • Throttle valve control apparatus of an internal combustion engine

Examples

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Embodiment Construction

[0018] figure 1 is a schematic diagram of an internal combustion engine to which a throttle valve control device according to an exemplary embodiment of the present invention can be applied. The internal combustion engine is a V-type internal combustion engine having a first bank B1 which can be used as a first cylinder bank and a second bank B2 which can be used as a second cylinder bank. The internal combustion engine also comprises a first intake manifold 11 of the first bank B1 and a second intake manifold 12 of the second bank B2, and a first exhaust manifold 21 of the first bank B1 and of the second bank B2 Second exhaust manifold 22. The position of the first bank B1 (and the second bank B2 ) of internal combustion engines in the engine compartment of the vehicle is not specified, ie can be arranged on the left or right, front or rear.

[0019]The intake systems of the first bank B1 and the second bank B2 are independent of each other. The first intake passages 31 of...

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PUM

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Abstract

The invention provides a throttle valve control apparatus of an internal combustion engine having at least a first cylinder group (Bl) and a second cylinder group (B2). A first throttle valve (Sl) is arranged in an intake passage (31) of the first cylinder group and a second throttle valve (S2) is arranged in an intake passage (32) of the second cylinder group. The throttle valve control apparatus includes a controller that, when there is a demand to switch a combustion air-fuel ratio of the internal combustion engine without changing engine output, first changes an opening amount of the first throttle valve, and then changes an opening amount of the second throttle valve.

Description

technical field [0001] The invention relates to a throttle valve control device for an internal combustion engine. Background technique [0002] For example, Japanese Patent Application Laid-Open No. 5-18303 proposes, when shifting the combustion air-fuel ratio without changing the engine output power, for controlling the throttle valve opening amount to achieve a target with respect to the combustion air-fuel ratio after the shift Intake technology. [0003] Typically, when the throttle valve opening amount is changed, there is a response delay of the intake air, during which the engine output tends to fluctuate. Therefore, when the throttle valve opening amount is changed to shift the combustion air-fuel ratio, the engine output cannot be kept constant, so a driver feels torque shock. Contents of the invention [0004] Therefore, the present invention provides a throttle valve control device for an internal combustion engine that reduces the driver's feeling when the t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/34F02D41/00F02D41/02F02D41/30
CPCF02P5/045F02D11/105F02D41/0275Y02T10/42F02D37/02F02D41/307F02D41/0002F02D2250/21Y02T10/40
Inventor 宫下茂树
Owner TOYOTA JIDOSHA KK
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