KR970046576A

KR970046576A - 3-speed control method for low voltage of vehicle

Info

Publication number: KR970046576A
Application number: KR1019950068331A
Authority: KR
Inventors: 정후용
Original assignee: 전성원; 현대자동차 주식회사
Priority date: 1995-12-30
Filing date: 1995-12-30
Publication date: 1997-07-26

Abstract

본 발명은 오토메틱 차량의 연비를 향상시키고 운전의 원활성 및 안전성에 도움을 주도록 한 차량의 저전압시 3단 변속 제어방법에 관한 것으로, 변속의 실시유무를 판단하여(단계1), 변속을 실시해야 한다고 판단할 경우, 구동전압 검출수단(20)을 통해 검출된 구동전압이 미도시된 메모리에 기설정된 최소 엑시테이션 전압과 비교하고(단계2), 비교하여 작을 경우, 목표변속단이 3속인가를 판단하여(단계3), 3속일 경우, 변속을 허용하고(단계4), 3속이외의 변속일 경우, 변속을 허용하지 않도록(단계5)하는 과정을 거치도록 하므로서, 차량 주행중 변속을 발행하여야 하는 상황에서 구동전압이 최소 엑시테이션 전압보다 현재 작더라도 목표변속단이 3속이면 변석을 허용하도록 하여 최적의 변속상태를 유지할 수 있고, 차량의 연비 및 차량변 속의 원활성을 유지시킬 수 있는 특징이 있다.The present invention relates to a three-speed control method for low voltage of the vehicle to improve the fuel economy of the automatic vehicle and to help the smoothness and safety of the vehicle, and to determine whether the shift is carried out (step 1), If it is determined that the driving voltage detected by the driving voltage detecting means 20 is compared with the minimum excitation voltage preset in the memory (not shown) (step 2), and if the comparison is small, is the target speed change stage 3 speed? (3), if the speed is 3, the shift is allowed (step 4), and if the shift is other than the 3 speed, the shift is not allowed (step 5). Even if the driving voltage is smaller than the minimum excitation voltage at the present time, if the target shift stage is three speeds, it is possible to maintain the optimum shift state by allowing the stones to be shifted. There are features that can be maintained.

Description

3-speed control method for low voltage of vehicle

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

제1도는 본 발명의 자동변속 구동전압 검출수단과 마이콤이 연결된 구성도,1 is a configuration diagram in which a microcomputer is connected to an automatic shift driving voltage detecting means of the present invention;

제2도는 본 발명에 의한 저전압시 3단 변속 제어방법을 도시한 플로우챠트,2 is a flow chart showing a three-speed control method at low voltage according to the present invention,

제3도는 각 변속단에 따른 제어용 솔레노이드(SOL1,SOL2)의 상태를 도시한 도표3 is a diagram showing the states of the control solenoids SOL1 and SOL2 according to each shift stage.

Claims

Judging whether the shift is carried out (step 1); If it is determined that the shift is to be performed, the driving voltage detected through the driving voltage detecting means 20 is compared with the minimum excitation voltage preset in the memory (not shown) (step 2); If the comparison is small, it is determined whether the target speed change stage is three speeds (step 3); In the third speed, allow shifting (step 4); In the case of shifts other than three speeds, the three-speed control method at low voltage of the vehicle, characterized in that the process of the step (step 5) to not allow the shift.