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Method and device for displaying fuel economy state of car engine

A technology of fuel economy and automobile engine, which is applied in the direction of transportation and packaging, vehicle parts, circuits or fluid pipelines, etc. It can solve the problem of increasing instantaneous fuel consumption rate, which cannot be accurately known, and cannot be determined whether the automobile engine is working at economical fuel consumption Areas and other issues to achieve the effect of reducing environmental pollution and reducing fuel consumption

Active Publication Date: 2012-07-25
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, during the process of upshifting and accelerating, the fuel economy has changed but the instantaneous fuel consumption rate has been increasing. Therefore, the method for displaying the fuel consumption of the vehicle provided in the prior art has certain limitations for the actual guidance of the driver. sex
In practical applications, even if the driver knows the instantaneous fuel consumption rate of the car engine in the current state, he cannot determine whether the car engine is working in the economical fuel consumption zone in the current state, let alone accurately know the fuel economy of the car engine in the current state. what is the state of sex

Method used

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  • Method and device for displaying fuel economy state of car engine
  • Method and device for displaying fuel economy state of car engine
  • Method and device for displaying fuel economy state of car engine

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Embodiment Construction

[0028] The present invention realizes based on the ECU of electric control engine, and ECU (Electronic Control Unit, electronic control unit) is also called "driving computer", "vehicle computer" etc. Computing, processing, judging, and then outputting instructions to provide an electrical pulse signal of a certain width to the injector to control the fuel injection volume. At present, cars equipped with electronically controlled engines are equipped with CAN meters, which can display the instantaneous fuel consumption rate and total fuel consumption of the engine in the current state, but the driver cannot know the state of the engine's fuel economy in the current state.

[0029] The core of the present invention is to provide a method for displaying the fuel economy state of an automobile engine. In order to control the movement of the whole vehicle reasonably, make the vehicle engine work in the economical fuel consumption zone, give full play to the efficiency of the engin...

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Abstract

The invention discloses a method for displaying a fuel economy state of a car engine, comprising the steps of calibrating a fuel economy state MAP by an engine universal characteristic test, putting the map to an ECU (electronic control unit) in advance; obtaining present rotation speed and torque of an engine by the ECU, and finding the fuel economy state obtained by the MAP in a present state; generating a fuel economy state message and transmitting the message through a CAN (controller area network) bus; capturing the fuel economy state message from the CAN bus by a motormeter; analyzing and displaying the fuel economy state in the present state. The method can output the fuel economy state of the car engine in the present state in real time, enable a driver to know the state immediately to do purposeful operation, enable the car engine to work in an economical fuel consumption area, fully play the engine efficiency, reduce oil consumption and reduce environment pollution. On the basis, the invention also provides a device for displaying a fuel economy state of a car engine.

Description

technical field [0001] The invention relates to the technical field of electronically controlled engines, in particular to a method and device for displaying the fuel economy state of an automobile engine, which is used to display the fuel economy state of the engine under the current state in real time on the instrument panel of the automobile. Background technique [0002] As a modern means of transportation, automobiles (cars, passenger cars, and trucks, etc.) play an important role in our daily life and industrial production. With the gradual spread and deepening of the energy crisis all over the world, the price of fuel oil continues to rise, which has recently caused the running costs of automobiles to continue to increase. For this reason, how to give full play to the efficiency of automobile engines, reduce fuel consumption and reduce environmental pollution has become the focus of people's attention. [0003] As we all know, a car engine has its economical fuel con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K35/00B60R16/02
Inventor 张小田李军吕文芝陈月春王卓
Owner WEICHAI POWER CO LTD
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