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Engine controlling apparatus

A control device and engine technology, applied in the direction of engine control, engine ignition, engine components, etc., can solve problems such as increased energy loss and poor fuel consumption rate

Active Publication Date: 2015-05-27
MITSUBISHI MOTORS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, making the output engine torque large enough to cover all load fluctuations that may occur increases energy loss and degrades fuel consumption

Method used

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  • Engine controlling apparatus
  • Engine controlling apparatus
  • Engine controlling apparatus

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Embodiment Construction

[0024] The engine control device will be described with reference to the drawings. In addition, the embodiments shown below are merely examples, and various modifications and technical applications not explicitly described in the following embodiments are not excluded.

[0025] 1. Device configuration

[0026] The control device of this embodiment is suitable for figure 1 The on-board engine 10 is shown. Here, one cylinder among the plurality of cylinders provided in the multi-cylinder four-stroke engine 10 is illustrated. The top of the cylinder is provided with a spark plug 13 whose tip protrudes toward the combustion chamber side. In addition, an intake passage 11 and an exhaust passage 12 are connected to the top surface of the combustion chamber on the cylinder head side.

[0027] An injector 14 , an ETV 15 (Electric Throttle Valve, electric throttle valve) and an air flow sensor 7 (AFS, Air Flow Sensor) are provided on the intake passage 11 side. The injector 14 inj...

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Abstract

An engine controlling apparatus includes a setting unit (2) for setting a demand torque to an engine mounted on a vehicle, a detection unit (22 to 25) for detecting a fluctuation of an external load, and a correction unit (28 to 32) for correcting the demand torque. The engine controlling apparatus further includes a target torque calculation unit (3) for calculating a target torque for the engine based on the demand torque corrected by the correction unit (28 to 32), a control unit (4h) for control an amount of air to be introduced into the engine so that an output torque of the engine may come close to the target torque, and an ignition timing detection unit (4a) for detecting an ignition timing of the engine. The correction unit (28 to 32) adds a torque increment for coping with a fluctuation of the external load to the demand torque to determine an increment correction demand torque and increases or decreases the increment correction demand torque in response to a displacement amount of the ignition timing from a predetermined reference value.

Description

technical field [0001] The present invention relates to a control device for controlling an engine mounted on a vehicle. Background technique [0002] One of the control methods for an engine mounted on a vehicle is torque demand control in which the amount of intake air, fuel injection amount, ignition timing, etc. are controlled based on the amount of torque required by the engine. In torque reference control, a target value of engine torque is calculated from, for example, an accelerator opening, an engine speed, and the like, and the engine is controlled so as to obtain the torque of the target value. In addition, in vehicles equipped with external control systems such as automatic transmissions, cruise control devices, and vehicle stabilizing devices, the output requests to the engine from each external control system are converted into torque and transmitted in the engine ECU (Engine Electronic Control Unit) Internally unified, fully control the torque action of the e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D43/00
CPCF02D37/02F02D41/123F02D41/1498F02P5/1508F02P5/1514Y02T10/40
Inventor 柴田晃史上田克则宫田敏行户田仁司
Owner MITSUBISHI MOTORS CORP