KR970066197A - Automatic Transmission Solenoid Fault Diagnosis Device and Method Thereof - Google Patents

Abstract

In the present invention, when the opening amount of the throttle and the vehicle speed reach the condition of the shift time and the engine speed is increased without increasing the vehicle speed, the engine speed is compared with the value set by the microcomputer, The present invention relates to an automatic transmission solenoid failure diagnosis apparatus and method thereof, and more particularly, to an automatic transmission solenoid failure diagnosis apparatus and method for an automatic transmission solenoid failure diagnosis apparatus which includes an engine speed sensor 100 for sensing an engine speed, a gear range sensor 110 for sensing a gear shift point of an automatic transmission, A throttle opening degree sensor 130 for sensing the amount of opening of the throttle valve when the accelerator is operated, and a throttle opening degree sensor 130 for sensing the current vehicle speed, When the set shift point reference value is reached, a solenoid opening degree combination signal is outputted to shift the transmission, and when the shift is not made at the shift time point A microcomputer 140 for calculating a difference between an input data value and a set reference value, and outputting a warning signal when the deviation is outside a predetermined range, determining a failure of the solenoid, And a display unit 160 for visually informing the solenoid failure by the power control of the display unit driving unit 15. The display unit driving unit 150 controls the display unit 160,

Description

Automatic Transmission Solenoid Fault Diagnosis Device and Method Thereof

Since this is a trivial issue, I did not include the contents of the text.

FIG. 1 is a block diagram showing a configuration of a conventional automatic transmission, FIG. 2 is a block diagram showing a solenoid failure diagnosis system according to the present invention, and FIG. 3 is a flow chart for explaining a solenoid failure determination method according to the present invention.

Claims (2)

A throttle opening degree sensor for sensing an amount of opening of the throttle valve when the accelerator is operated; and a throttle opening degree sensor for detecting the throttle opening degree of the throttle valve, When the input signal reaches a predetermined speed reference point value by a signal inputted from the sensor, the solenoid opening degree combination signal is outputted to shift the transmission, and when the shift speed is not changed at the time of shifting, A microcomputer for determining an abnormality of the solenoid when the difference is outside a predetermined range and outputting an alarm control signal, a display unit driver for controlling a power source applied to the display unit according to a control signal of the microcomputer, And a display means for visually informing whether or not the solenoid has failed due to the control. Automatic transmission solenoid fault diagnosis apparatus as. A shift point reference value setting step of setting a reference value for the engine outer appearance, the gear shift point, the vehicle speed, and the throttle opening amount; a step of comparing the input signal for the reference value, the vehicle speed and the throttle opening amount, The engine speed / vehicle speed is compared with a reference value to determine whether or not a failure has occurred, and if the engine speed / vehicle speed exceeds a reference value, Wherein the step of determining the failure of the solenoid is performed. ※ Note: It is disclosed by the contents of the first application.