Control method of automobile fuel gauge

Abstract

The invention relates to a control method of an automobile fuel gauge. The control method comprises the steps of comparing a motor micro-step number N corresponding to a fuel resistance input signal;comparing a motor micro-step number L corresponding to the position of a pointer of the fuel gauge at the last flameout with a motor micro-step number F corresponding to the full fuel level to obtaina difference value, and determining the relation among the difference value of the motor micro-step numbers L and F, X, Y and Z to determine the final position of the pointer of the fuel gauge for displaying the fuel capacity, wherein X represents a judgment micro-step number under a fueling pattern, Y represents a judgment micro-step number under a special fueling pattern, and Z represents a partition micro-step number. The method can effectively overcome the defects which may be brought to the display of current fuel gauges when refueling is carried out under a special condition or automobiles are restarted, and therefore the fuel gauges can display the fuel capacity accurately and transmit relevant automobile fuel information to customers in time, so that the driving and riding experience is improved. The problem is solved that the parameters displayed by a fuel gauge are inconsistent during restarting of an automobile due to the fact that the automobile is parked on a bumpy road orruns on the bumpy road before parking.

Description

technical field [0001] The invention belongs to the technical field of automobile electronic control, and in particular relates to a method for controlling an automobile fuel gauge. technical background [0002] The car fuel gauge can record and display the current amount of fuel in the car's fuel tank, which can be divided into fuel consumption and / or fuel remaining. Because the fuel gauge is very cumbersome to deal with, many cars have inaccurate fuel gauge readings, which leads to The car suddenly stalled because it ran out of fuel. The patent for invention with the publication number CN 104482992 A proposes a control method for an automobile fuel gauge, which solves the technical problem that the existing automobile fuel gauge is inaccurate in calculating the fuel amount during driving, but the automobile starts and stops due to refueling or The measured resistance will also change when the vehicle is parked on a slope. As we all know, the measured resistance correspond...

AI Technical Summary

Problems solved by technology

[0002] The car fuel gauge can record and display the current amount of fuel in the car's fuel tank, which can be divided into fuel consumption and / or fuel remaining. Because the fuel gauge is very cumbersome to deal with, many cars have inaccurate fuel gauge readings, which leads to Car shuts down suddenly due to running out of fuel

The patent for invention with the publication number CN 104482992 A proposes a control method for an automobile fuel gauge, which solves the technical problem that the existing automobile fuel gauge is inaccurate in calculating the fuel amount during driving, but the automobile starts and stops due to refueling or The measured resistance will also change when parked on a slope, etc. As we all know, the measured resistance corresponds to the display of the fuel gauge, so the display of the fuel gauge will change, thus affecting the accuracy of the display