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Controller for internal combustion engine

一种控制装置、内燃机的技术，应用在发动机控制、电气控制、机械设备等方向，能够解决不能考虑致动器等问题，达到缩短开发期间、降低开发成本、控制简单化的效果

Inactive Publication Date: 2010-03-24
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, actuators other than the ignition cannot be considered

Method used

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  • Controller for internal combustion engine
  • Controller for internal combustion engine
  • Controller for internal combustion engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0035] (Description of system configuration)

[0036] figure 1 It is a figure for demonstrating the structure of the internal combustion engine system concerning Embodiment 1 of this invention. figure 1 The illustrated configuration includes an internal combustion engine 10 . The number of cylinders and cylinder arrangement of the internal combustion engine 10 are not particularly limited. A piston 12 is provided in each cylinder of the internal combustion engine 10 . An intake passage 16 and an exhaust passage 18 communicate with each cylinder.

[0037] A throttle valve 20 is provided on the intake passage 16 . Near the throttle valve 20, a throttle position sensor 22 for detecting the throttle opening TA is provided. In addition, a catalyst 26 for purifying exhaust gas is arranged in the exhaust passage 18 .

[0038] Each cylinder of the internal combustion engine 10 is provided with a fuel injector 28 for injecting fuel into an intake port, and an ignition plug 30 for...

Embodiment approach 2

[0058] Next, refer to image 3 and Figure 4 , the second embodiment of the present invention will be described, but the description will focus on the differences from the above-mentioned first embodiment, and the description will be simplified or omitted for the same items.

[0059] In this embodiment, similar to the above-mentioned Embodiment 1, it is possible to use figure 1 and figure 2 Expressed system composition to achieve.

[0060] (Feature of Embodiment 2)

[0061] image 3 It is a diagram showing requests related to torque efficiency output from the emission control unit 52 , the fuel consumption control unit 54 , and the idle stability control unit 56 in the present embodiment. image 3 Herein, the "efficiency reduction amount" indicates the reduction amount of the torque efficiency when compared with 1 which is the maximum value of the torque efficiency.

[0062] fuel consumption control unit 54, such as image 3 As indicated by the dotted line in , output ...

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Abstract

The invention relates to a controller for an internal combustion engine which can simplify a control operation while achieving highly functional control through proper arbitration of a plurality of requests. The controller includes an emission control section (52) to output each request based on individual purposes to an internal combustion engine; a fuel consumption control section (54); an idlestability control section (56), an efficiency arbitration section (58) to arbitrate requests from those sections; and an actuator instruction value calculation section (60) to determine the instruction values given to a plurality of actuators provided on the internal combustion engine in accordance with a result of arbitration performed by the efficiency arbitration section (58). The requests arethose for the torque efficiency indicative of a ratio of a requested torque to a reference torque obtained when operating points of a plurality of actuators are optimized.

Description

technical field [0001] The invention relates to a control device for an internal combustion engine. Background technique [0002] In the control of the internal combustion engine, various performances such as emission performance, fuel consumption capability (fuel consumption capability), idling stability, etc. are satisfied. Therefore, conventionally, each actuator of the internal combustion engine, such as a throttle valve (valve), an ignition device, and a fuel injection device, is separately required by each control logic for satisfying these performances. Therefore, when determining the command value for each actuator, it is necessary to mediate the request from each control logic for each actuator (mediate, reconciliation), which complicates the control. [0003] In addition, when changing the control logic, it is necessary to verify the dependencies of all actuators. Conversely, when an actuator is changed, it is necessary to revise all the control logics that reque...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D45/00F02D43/00
CPCF02D2250/18F02D41/263F02D37/02F02D41/1406
Inventor 田中宏幸
Owner TOYOTA JIDOSHA KK
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