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Internal combustion engine control device and motor vehicle containing the same

A technology for internal combustion engine control and motor vehicles, applied in mechanical equipment, engine control, fuel injection control, etc.

Inactive Publication Date: 2008-01-16
YAMAHA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, with the techniques disclosed in Japanese Patent Laid-Open No. 9-209809 and No. 2002-276440 using the change speed of the sensor detection value as a reference parameter (generally considered sufficient), it is difficult to distinguish abnormal signals from normal signals

Method used

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  • Internal combustion engine control device and motor vehicle containing the same
  • Internal combustion engine control device and motor vehicle containing the same
  • Internal combustion engine control device and motor vehicle containing the same

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Embodiment Construction

[0038] Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be noted that the present invention is not limited to the following preferred examples.

[0039] As an apparatus for controlling an internal combustion engine of a motor vehicle, the internal combustion engine control apparatus according to the present preferred embodiment preferably includes at least one sensor and signal abnormality detection means. Fig. 1 schematically shows a signal anomaly detection device 10 according to this preferred embodiment. As shown in FIG. 1 , signal abnormality detection device 10 preferably includes calculation section 11 and abnormality determination section 12 , and detects abnormality of a signal output from sensor 1 .

[0040] The sensor 1 detects a physical parameter (ie, a state quantity) representing the state of a detection object, and outputs a signal representing the state quantity (hereinafter referred...

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PUM

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Abstract

An internal combustion engine controlling apparatus controls an internal combustion engine of an automotive vehicle, and includes a sensor arranged to detect a state quantity concerning an automotive vehicle, and a signal abnormality detection device arranged to detect an abnormality in a state quantity signal which is output from the sensor. The signal abnormality detection device includes a calculation section arranged to receive a state quantity signal which is output from the sensor, and to calculate a second derivative of a state quantity represented by the state quantity signal, and an abnormality determination section arranged to determine whether the state quantity signal is abnormal or not based on the second derivative calculated by the calculation section.

Description

technical field [0001] The present invention relates to an internal combustion engine control device, and more particularly, to an internal combustion engine control device having a signal abnormality detection device that detects an abnormality in a signal output from a sensor. Furthermore, the invention relates to a motor vehicle comprising such an internal combustion engine control device. Background technique [0002] In recent years, electronically controlled throttle systems have come into use in motor vehicles. In an electronically controlled throttle system, as shown in FIG. 11 , a throttle sensor detects the actual opening of the throttle ("throttle opening"). Regarding the throttle opening, a target opening of the throttle is determined from the accelerator opening (detected by the accelerator sensor) and the state of the vehicle. Then, control is performed by an actuator such as a motor to ensure that the throttle valve opening coincides with the target opening....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/22F02D9/02F02D45/00
CPCF02D9/02F02D2200/0404F02D41/222Y02T10/40F02D11/107F02D11/106
Inventor 山根隼人佐本治彦
Owner YAMAHA MOTOR CO LTD