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Device for determining oil changing period

A technology for judging devices and judging parts, which can be applied to lubrication indicating devices, lubricating parts, etc., and can solve problems such as inability to accurately judge oil replacement time

Active Publication Date: 2019-07-16
ISUZU MOTORS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, there is no simple proportional relationship between the operating hours and the deterioration state of the oil, and if the oil replacement timing is determined based only on the operating hours, there is a problem that the oil replacement timing cannot be accurately judged in some cases.

Method used

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  • Device for determining oil changing period
  • Device for determining oil changing period
  • Device for determining oil changing period

Examples

Experimental program
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Embodiment Construction

[0024] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

[0025] figure 1 It is a block diagram showing an example of the oil change timing judging device of the present invention.

[0026] Such as figure 1 As shown, the main controller 1, the engine control device 2, and the oil replacement time display unit 3 are connected to each other through a common bus 4 to form an in-vehicle serial communication network. The reset device 5 is directly connected with the main controller 1 .

[0027] Master controller 1 executes image 3 The handler shown.

[0028] The engine control device 2 inputs operating information such as vehicle speed, accelerator opening degree, engine speed, travel distance, and oil temperature from various sensors, and outputs fuel injection amount as necessary.

[0029] The engine control device 2 generates pulse signals in proportion to, for example, the rotational speed of the axles in the ...

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PUM

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Abstract

A device for determining an oil changing period, with which it is possible to accurately determine an oil changing period, has a calculation unit that calculates a degree of degradation of oil on thebasis of engine torque, and a determination unit that determines an oil changing period on the basis of the degree of degradation calculated by the calculation unit. For example, the calculation unitcalculates the degree of degradation also on the basis of at least one degradation factor among vehicle speed, travel distance, and oil temperature. Additionally, for example, the calculation unit sets weightings to the degradation factors.

Description

technical field [0001] The present invention relates to an oil replacement timing judging device. Background technique [0002] Conventionally, in a vehicle or the like equipped with an engine, the final drive, the transmission, the engine, and the like are supplied with lubricating oil for smooth operation. If the oil has deteriorated, it will adversely affect the performance of the engine, fuel consumption, and the like. Therefore, notification of the replacement timing of the oil is performed. [0003] When the conditions of use of the vehicle, etc. are good (for example, running at a constant speed on an expressway), the deterioration of the oil does not increase relatively. In addition, when the conditions of use of the vehicle are unfavorable (for example, repeated acceleration and deceleration on general roads), the deterioration of the oil is relatively accelerated. That is, there are differences in the progression of oil deterioration depending on how the vehicle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01M11/10
CPCF01M11/10
Inventor 福田祐久
Owner ISUZU MOTORS LTD