KR950017345A

KR950017345A - Fault judgment device of automatic transmission and its control method

Info

Publication number: KR950017345A
Application number: KR1019930028051A
Authority: KR
Inventors: 김성욱
Original assignee: 전성원; 현대자동차 주식회사
Priority date: 1993-12-16
Filing date: 1993-12-16
Publication date: 1995-07-20

Abstract

자동 변속기의 입력축의 회전수를 감지한 뒤에 이를 전기적인 신호로 변환하여 출력하는 입력축 회전속도 센서(21)와, 자동 변속기의 출력축의 회전수를 감지한 뒤에 이를 전기적 신호로 변환하여 출력하는 출력축 회전속도 센서(22)와, 상기 입력축 회전속도 센서 및 출력축 회전속도 센서로부터 입력되는 신호를 이용하여, 자동차의 차속이 기준속도 이상인지를 판단하여 기준속도 이상인 경우에 변속이 완료된 상태인지를 판단하고, 변속이 완료된 상태인 경우에 출력축의 회전속도가 정상치보다 큰지를 판단하고, 출력축의 회전속도가 정상치보다 큰 경우에 고장을 표시하기 위한 표시신호 및 경고신호를 출력하는 마이크로 컨트롤러(23)와, 상기 마이크로 컨트롤러로부터 입력되는 표시신호 및 경고신호에 따라 동작됨으로써 운전자가 자동 변속기에 이상이 발생되었음을 인지하도록 하는 표시 및 경고부(24)로 구성되어, 자동 변속기의 입력축 회전속도 센서와 출력축 회전속도 센서를 사용하여 자동 변속기의 고장 유무를 판단함으로써 휠회전수 센서를 필요로 하지 않고도 자동 변속기의 고장 유무를 알아낼 수 있는 자동변속기의 고장 판단장치 및 그 제어방법에 관한 것.Input shaft rotational speed sensor 21 that detects the rotational speed of the input shaft of the automatic transmission and converts it into an electrical signal, and output shaft rotation that detects the rotational speed of the output shaft of the automatic transmission and converts it into an electrical signal and outputs it. Using the speed sensor 22 and the signals input from the input shaft rotation speed sensor and the output shaft rotation speed sensor, it is determined whether the vehicle speed of the vehicle is greater than or equal to the reference speed, and it is determined whether the shift is completed when the speed is greater than or equal to the reference speed. A microcontroller 23 for judging whether the rotational speed of the output shaft is greater than the normal value when the shift is completed, and outputting a display signal and a warning signal for indicating a failure when the rotational speed of the output shaft is greater than the normal value; The driver operates the automatic transmission according to the display and warning signals input from the microcontroller. It is composed of a display and a warning unit 24 for recognizing that an abnormality has occurred, by using the input shaft rotation speed sensor and the output shaft rotation speed sensor of the automatic transmission to determine the failure of the automatic transmission without the need for the wheel speed sensor The present invention relates to a failure judging device for an automatic transmission and a method of controlling the same.

Description

Fault judgment device of automatic transmission and its control method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 종래의 자동 변속기의 고장 판단장치의 구성회로도이고,1 is a configuration circuit diagram of a failure determination apparatus of a conventional automatic transmission,

제2도는 이 발명의 실시예에 따른 자동 변속기의 고장 판단장치의 구성 회로도이고,2 is a configuration circuit diagram of a failure determination apparatus for an automatic transmission according to an embodiment of the present invention.

제3도는 이 발명의 실시예에 따른 자동 변속기의 고장 판단장치의 입력축 회전속도 센서의 동작 원리도이고,3 is an operation principle diagram of the input shaft rotational speed sensor of the failure determination apparatus of the automatic transmission according to the embodiment of the present invention,

제4도는 이 발명의 실시예에 따른 자동 변속기의 고장 판단장치의 제어방법의 동작 흐름도이다.4 is an operation flowchart of a control method of a failure determination apparatus for an automatic transmission according to an embodiment of the present invention.

Claims

Input shaft rotational speed sensor 21 that detects the rotational speed of the input shaft of the automatic transmission and converts it into an electrical signal, and output shaft rotation that detects the rotational speed of the output shaft of the automatic transmission and converts it into an electrical signal and outputs it. By using the signals input from the speed sensor 22 and the input shaft rotation speed sensor 21 and the output shaft rotation speed sensor 22, it is determined whether the vehicle speed of the vehicle is greater than or equal to the reference speed, and the shift is completed when the speed is greater than or equal to the reference speed. Microcontroller for judging whether it is in the state, if the rotational speed of the output shaft is greater than the normal value when the shift is completed, and outputting a display signal and a warning signal to indicate a fault when the rotational speed of the output shaft is greater than the normal value. And the driver is operated automatically according to the display signal and the warning signal input from the microcontroller 23. Device for determining the failure of the automatic transmission, characterized in that consisting of a display and a warning unit 24 to recognize that the abnormality in the transmission.

When power is applied, the operation is started to initialize all the variables of the internal memory, detecting the rotation speed of the output shaft and the rotation speed of the input shaft, determining whether the vehicle speed is above a certain reference speed from the detected signal, and Determining whether the shift is complete from the information signal stored in the internal memory when the vehicle speed is equal to or greater than a predetermined reference speed; and determining whether the output shaft rotation speed is greater than the normal value when the shift is completed, and output shaft rotation. When the speed is larger than the normal value, the failure determination device of the automatic transmission, characterized in that it comprises the step of outputting an indication and a warning signal for notifying that a failure has occurred and terminating all operations.

※ Note: The disclosure is based on the initial application.