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Control system and method for internal combustion engine

A control system and control method technology, applied in engine control, internal combustion piston engine, electrical control, etc., can solve difficult problems

Inactive Publication Date: 2008-03-05
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, when there is a need to increase the boost pressure of the engine (internal combustion engine), some control delay inevitably occurs, which makes it difficult to obtain a condition in which boost assist is started before the vehicle acceleration operation of the internal combustion engine starts, whereby the pressure from the internal combustion engine Sufficient level of boost pressure is supplied to the internal combustion engine at the beginning of vehicle acceleration maneuvers

Method used

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  • Control system and method for internal combustion engine
  • Control system and method for internal combustion engine
  • Control system and method for internal combustion engine

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Embodiment Construction

[0023] Hereinafter, a control system of an internal combustion engine according to a first exemplary embodiment of the present invention will be described with reference to the drawings. Note that descriptions of similar components and parts are omitted when appropriate. FIG. 1 is a view schematically showing the configuration of a control system according to the first exemplary embodiment. The control system is integrated into an internal combustion engine with an automatic transmission (AT).

[0024] Referring to FIG. 1, the control system of the first exemplary embodiment has a turbocharger 2 which is a supercharger for supplying supercharged air to the engine 1. The turbocharger 2 is connected to the engine 1 through an exhaust pipe 6 and an intake pipe 7. The turbocharger 2 sucks exhaust gas discharged from the engine 1 through the exhaust pipe 6 and supplies supercharged air to the engine 1 through the intake pipe 7.

[0025] The turbocharger 2 has a turbine 3, a compressor ...

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Abstract

The present invention discloses a control system for internal combustion engine and a method. In the control system and the method, a first step-in parameter detected by an accelerator position sensor (11) is responded, and the start of an ECU (10) is assisted by the pre-supercharging of a motor (5), then a second step-in parameter which is detected by the accelerator position sensor (11) and larger than the first step-in parameter is responded, and the ECU (10) will start the vehicle accelerate operation of the internal combustion engine.

Description

Technical field [0001] The present invention relates to a control system and control method of an internal combustion engine, and more particularly to a control system and control method of an internal combustion engine provided with a supercharger such as a turbocharger and a supercharging assist mechanism that assists in supercharging by the supercharger. Background technique [0002] The known engine is provided with a supercharger such as a turbocharger to improve the acceleration characteristics of the vehicle. In addition, the control system of the internal combustion engine is well-known, and when the boost pressure of the turbocharger has not increased to a sufficient level, for example, when the vehicle is started, the control system performs boost assist using an auxiliary mechanism such as an electric motor. For example, a control system that performs this boost assist is described in JP3055143. The control system described in this patent determines the idle position o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B37/10
CPCF02B39/10F02D41/10F02D41/0007F02D41/045F02D2200/602Y02T10/144F02B37/16Y02T10/12
Inventor 秋田浩市
Owner TOYOTA JIDOSHA KK