FRICTION CLUTCH CONTROL ALGORITHM FOR AUTOMATIC PLANETARY GEARBOXES

2021 ◽  
pp. 59-68
Author(s):  
Vladimir Petrovich Tarasik ◽  
Olga Vladimirovna Puzanova
Keyword(s):  
Control Algorithm ◽  
Friction Clutch ◽  
Clutch Control

scholarly journals Feedback in Automated Clutch Control Circuit for Truck Start-Up Process

2018 ◽  
Vol 17 (5) ◽  
pp. 421-431 ◽  
Author(s):  
Le Van Nghia
Keyword(s):  
Control System ◽  
Power Unit ◽  
Intelligent Systems ◽  
Mechanical Transmission ◽  
Feedback Parameter ◽  
Start Up ◽  
Control Threshold ◽  
Friction Clutch ◽  
Multidisciplinary Model ◽  
Clutch Control

The paper presents description of a mechatronic control system for mechanical transmission of a 20-ton truck, as well as its adaptive start-up algorithm, transient process behavior which significantly affects durability of automated power unit elements, vehicle movement smoothness and driver’s comfort when driving. A multidisciplinary model of the mechatronic control system has been developed in the software package Imagine Lab AMESim because its power unit including a diesel engine, a dry frictional two-disc clutch, a main mechanical stepped gearbox and an additional gearbox has electrical components besides mechanical and pneumatic ones. The given model allows to test complex control algorithms and analyze the behavior of intelligent systems in the early designing stages. The research has been carried out on the basis of the test complex at Department “Automobiles”, Automotive and Tractor Faculty, Belarusian National Technical University. Research results confirm an adequacy of the AMESim developed multidisciplinary model. Feedback on the increment of an angular velocity difference between driving and driven parts of the friction clutch has been introduced for precise friction clutch control. Threshold values of a feedback parameter have been determined on the basis of the developed computer model and these values will be used for programming a microprocessor unit when implementing an adaptive algorithm for a truck start-up process

FRICTION CLUTCH CONTROL IN THE GEARBOX WITH A DEMULTIPLICATOR

2018 ◽  
pp. 15-27
Author(s):  
Vladimir Petrovich Tarasik ◽  
Yury Sergeyevich Romanovich ◽  
Roman Vladimirovich Pliakin
Keyword(s):  
Friction Clutch ◽  
Clutch Control

Calculation and design of adaptive friction second-generation couplings (first version)

2020 ◽  
Author(s):  
M.P. Shishkarev ◽  
Keyword(s):  
Second Generation ◽  
Load Capacity ◽  
Control Device ◽  
Load Characteristic ◽  
Friction Clutch ◽  
Nominal Load ◽  
Clutch Control

The method of calculating an adaptive friction clutch with a separate power closure (the first option) is given.The features of calculating the values of the clutch control device parameters to ensure the highest accuracy of operation at a given nominal load capacity are shown. Explanations are given when calculating the values of the control device parameters depending on the shape of the load characteristic of the coupling.

scholarly journals A Dry Clutch Control Algorithm for AMT Systems in a Parallel Hybrid Electric Bus

2012 ◽  
Vol 5 (2) ◽  
pp. 469-474
Author(s):  
Changwoo Shin ◽  
Moseong Kim ◽  
Chunhua Zheng ◽  
Wonsik Lim ◽  
Sukwon Cha
Keyword(s):  
Control Algorithm ◽  
Hybrid Electric Bus ◽  
Electric Bus ◽  
Parallel Hybrid ◽  
Hybrid Electric ◽  
Dry Clutch ◽  
Clutch Control

Design of a highly efficient friction clutch apparatus for vehicle applications using a self-energizing mechanism

2017 ◽  
Vol 231 (7) ◽  
pp. 872-882 ◽  
Author(s):  
Sooyoung Kim ◽  
Seibum B Choi ◽  
Saebom Kim
Keyword(s):  
High Energy ◽  
The Self ◽  
Actuation System ◽  
Clutch System ◽  
Clutch Engagement ◽  
Spring Force ◽  
Friction Clutch ◽  
Engagement Process ◽  
Return Spring ◽  
Clutch Control

This study proposes a new design for a friction clutch actuator using the self-energizing principle for vehicle applications such that the power consumption for clutch control is significantly reduced. The self-energizing effect can be created by simply adding wedge structures to a conventional clutch system, and it assists in significantly reducing the actuation energy of the clutch with little additional cost. In this paper, a mathematical model of the clutch actuation system is derived on the basis of static force analyses with particular emphasis on the torque amplification factor due to the self-energizing effect. The slope angles of the wedges in the proposed clutch actuator are determined in order that the clutch system ensures appropriate torque amplification while considering various factors such as the variations in the friction coefficient and the return spring force. In addition, model-based analyses of the new clutch actuator system are performed in order to predict the dynamic effects of the self-energizing mechanism on the system, particularly for the clutch engagement process. The feasibility of the proposed clutch design and its high energy efficiency are verified experimentally using three prototypes with different slope angles.

scholarly journals FEATURES OF CONTROLLING ELECTROPNEUMATIC VALVES OF ACTUATOR TO CONTROL ITS CLUTCH WITH ACCELERATION VALVE

2018 ◽  
Vol 17 (1) ◽  
pp. 64-71 ◽  
Author(s):  
O. A. Yaryta ◽  
M. G. Mychalevych ◽  
D. N. Leontiev ◽  
V. I. Klymenko ◽  
V. A. Bogomolov ◽  
...  
Keyword(s):  
Control System ◽  
Power Supply ◽  
Control Algorithm ◽  
Pulse Width Modulation ◽  
Solenoid Valve ◽  
Excess Pressure ◽  
Pneumatic Cylinder ◽  
Quantitative Characteristics ◽  
Clutch Control ◽  
Single Power

The article deals with one of the ways to control an actuator of the automated clutch control system. The aim is to design control of the electropneumatic actuator, to control its coupling with the acceleration valve on the basis of experimental research as well as to provide rational parameters of the automated clutch control system for the robotic transmission. The feature of the system is an acceleration valve in the design of the electropneumatic actuator to control the clutch. New links demand to adjust the way to control the actuator. The connection of Pulse-Width Modulation (PWM) with single power supply pulses to control electropneumatic valves is substantiated. The quantitative characteristics of single control pulses and PWM ones are determined. The error of operation accuracy for various ways of the control of the electropneumatic actuator to control the clutch of the robotic transmission is determined. Obtained separate PWM area is designed to suppress the initial hysteresis when the rod of the clutch actuator is moved. An algorithm for the operation of a clutch control system is proposed, taking into account the use of two modes of operation of solenoid valves. A graphical interpretation of the clutch control algorithm is presented, which gives an idea of the location of the constant signal feeding zones to the solenoid valve, as well as the operation areas of the solenoid valve in PWM mode. The control algorithm of the clutch booster provides a mode of guaranteed absence of excess pressure in the pneumatic cylinder after releasing the clutch pedal, provided that two normally closed solenoid valves are used. This configuration of the electro-pneumatic clutch control system allows the use of an emergency clutch release system in case of voltage absence. The reference algorithm for filtering the array of data coming from the feedback sensor, as well as the numerical values of the delay caused by the presence of a filter, are given.

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