AUTOMATIC DECELERATION SYSTEM FOR INDUSTRIAL VEHICLE AND CONSTRUCTION EQUIPMENT

• Main Authors: KANG, Min Jun, LEE, Ho Jun, SON, Hyeong Gon, KIM, Kwang In
• Format: Patent
• Language: English; French; Korean
• Published: 16.01.2020
• Subjects: ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING ORSUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES INGENERAL; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; PERFORMING OPERATIONS; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES; PRINTED CIRCUITS; TRANSPORTING; VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES; VEHICLES IN GENERAL

An automatic deceleration system for an industrial vehicle and construction equipment, according to the present invention, is configured such that when an OFF signal is input from an accelerator pedal switch during forward driving or reverse driving, a transmission control unit detects a current vehicle speed from a speed sensor, and, when the current vehicle speed is a braking start speed, while gradually closing an open solenoid valve of a forward side solenoid valve and a reverse side solenoid valve, controls a clutch unit interlocking with the solenoid valve to be controlled such that the clutch unit is connected to an axle part of the vehicle, such that the vehicle speed is decelerated to a prescribed creeping speed; and when an ON signal is input from the accelerator pedal switch during driving at the creeping speed, the transmission control unit opens either the forward side solenoid valve or the reverse side solenoid valve according to a forward or reverse stage signal input from a shift control unit and closes the other to thus control the vehicle such that the vehicle drives in the driving direction according to the forward or reverse stage signal. La présente invention concerne un système de décélération automatique pour un véhicule industriel et un engin de chantier, qui est conçu de telle sorte que, lorsqu'un signal d'arrêt est entré à partir d'un commutateur de pédale d'accélérateur pendant une marche avant ou une marche arrière, une unité de commande de transmission détecte une vitesse actuelle du véhicule à partir d'un capteur de vitesse, et, lorsque la vitesse actuelle du véhicule est une vitesse de démarrage de freinage, tout en fermant progressivement une électrovanne ouverte d'une électrovanne côté avant et d'une électrovanne côté arrière, commande une unité d'embrayage s'engrenant avec l'électrovanne à commander de telle sorte que l'unité d'embrayage est reliée à une partie d'essieu du véhicule, de telle sorte que la vitesse du véhicule est ralentie à une vitesse de fluage prescrite ; et lorsqu'un signal de marche est entré à partir du commutateur de pédale d'accélérateur pendant la conduite à la vitesse de fluage, l'unité de commande de transmission ouvre soit l'électrovanne côté avant, soit l'électrovanne côté arrière en fonction d'une entrée de signal d'étage avant ou arrière à partir d'une unité de commande de changement de vitesse et ferme l'autre pour commander ainsi le véhicule de telle sorte que le véhicule se déplace dans la direction d'entraînement selon le signal d'étage avant ou arrière. 본 발명의 산업차량 및 건설장비용 자동 감속 시스템은, 전진 주행 또는 후진 주행 중 상기 가속페달스위치로부터 오프(OFF) 신호가 입력되는 경우, 트랜스미션제어부는 스피드감지센서로부터 현재 차량속도를 감지하여 현재 차량속도가 제동시작속도이면 전진측 솔레노이드밸브 및 후진측 솔레노이드밸브 중 개방된 상태의 솔레노이드밸브를 점차 닫으면서 닫힘 조절되는 솔레노이드밸브에 연동하는 클러치부를 차량의 액슬부와 연결되도록 제어하여 차량의 속도가 규정 클리핑 속도까지 감속되도록 하고, 클리핑 속도로 주행 중 가속페달스위치로부터 온 신호가 입력되는 경우, 트랜스미션제어부는 변속조작부로부터 입력된 전진단 신호 또는 후진단 신호에 따라 전진측 솔레노이드밸브 및 후진측 솔레노이드밸브 중 어느 하나는 개방하고 나머지 하나는 닫아서 전진단 신호 또는 후진단 신호에 따른 주행방향으로 차량이 주행되도록 제어하는 것을 특징으로 한다.