Energy Storing Mechanism for a New Hydraulic-Motor Actuated Robot

2013 ◽  
Author(s):  
Xianbao Chen ◽  
Feng Gao ◽  
Chenkun Qi ◽  
Xinghua Tian ◽  
Jiaqi Zhang
Keyword(s):  
Remote Control ◽  
Energy Saving ◽  
Lithium Battery ◽  
Quadruped Robot ◽  
Hydraulic Motor ◽  
Uneven Terrain ◽  
New Type ◽  
Spring System

A quadruped robot named “Baby Elephant” with parallel legs has been developed. It is about 1 m tall, 1.2 m long and 0.5m wide. It weighs about 130 kg. Driven by a new type of hydraulic actuating system, the Baby Elephant is designed to work as a mechanical carrier. It can carry a payload no less than 50 kg. Operating outdoors using wireless remote control, the robot will be able to traverse uneven terrain applying walking and trotting gaits and can walk up and down 10 degree inclines. The Baby Elephant carries a lithium battery fixed at the belly to supply all the power. This paper describes the structure of the legs and the application of the energy saving mechanisms on the leg. Simulations and experiments are carried out to testify the efficiency of the spring system in terms of energy saving.

Research on a New Type of Lithium Battery String Equalization and Management System

2011 ◽  
Vol 383-390 ◽  
pp. 1470-1476
Author(s):  
Hao Wang ◽  
Ding Guo Shao ◽  
Lu Xu
Keyword(s):  
Lithium Batteries ◽  
Management System ◽  
Lithium Battery ◽  
Large Scale ◽  
Control Method ◽  
Balance Control ◽  
Industrial Applications ◽  
Control Technique ◽  
New Type ◽  
Management Functions

Lithium battery has been employed widely in many industrial applications. Parameter mismatches between lithium batteries along a series string is the critical limits of the large-scale applications in high power situation. Maintaining equalization between batteries is the key technique in lithium batteries application. This paper summarizes normal equalization techniques and proposed a new type of lithium Battery Equalization and Management System (BEMS) employing the isolated DC-DC converter structure. The system is integrated both equalization functions and management functions by using distributed 3-level controlled structure and digital control technique. With this control method the flexibility of the balance control strategy and the compatibility for different battery strings are both improved dramatically. The experimental results show optimizing equalization, efficiency and the battery string life span has been extended.

scholarly journals The Use of LEDBased Digital Optical Ministicks as MultiFunctional Controls for Unified HumanMachine Interfaces

2018 ◽  
pp. 188-193
Author(s):  
Sergey A. Golubin ◽  
Vladimir S. Nikitin ◽  
Roman B. Belov
Keyword(s):  
Remote Control ◽  
Degrees Of Freedom ◽  
Light Emitting Diodes ◽  
System Control ◽  
Visual Contact ◽  
Light Emitting ◽  
Comparison Results ◽  
New Type ◽  
Scientific Task ◽  
Control Devices

The active development of robotics requires increasingly complex remote control devices. The remote control devices are increasingly large, complex, and expensive. They decrease economic efficiency of robotics and increase their price. The scientific task is the research into possibility of applying optical ministicks on the basis of light emitting diodes as the new type basic multifunctional controls of unified human­machine interfaces allowing us to control commonly known robotic equipment types using identical devices. During the research original ergonomic methods of purposeful combination of two ministicks on two actuating levers were used so that to provide convenience of tactile control of various robots without visual contact with controls. As a result of the research, new controls were created and patented. They became known as “polyjoysticks” (patent of Russian Federation No. 2497177) and allow controlling engineering facilities having up to 20 degrees of freedom which exceeds the similar parameters of known controls by factor of 3 to 5. Due to combined use of optical ministicks, two polyjoysticks and a video mask, a new generalpurpose generation humanmachine interface was created. It allows controlling various robots and vehicles, from tractor to aircraft. The discussion of the obtained results was carried out by comparing them with parameters of control panels of different robotics systems. The analysis of the comparison results has shown that the controls based on polyjoysticks and digital optical ministicks on the basis of light emitting diodes have the best indices in terms of implemented among known control devices, in terms of ratio of functionality to weight and volume of the devices. New interfaces have already been applied for developing multiagent robotic system control system for fire forest extinguishing.

scholarly journals ENERGY-EFFICIENT TECHNICAL SOLUTIONS FOR THE OPERATIONAL CHARACTERISTICS OF THE HYDRAULIC DRIVE OF THE TRACTOR

2021 ◽  
Author(s):  
R.V. Yudin ◽  
◽  
R.N. Puzakov ◽  
Keyword(s):  
Energy Saving ◽  
Energy Efficient ◽  
Hydraulic System ◽  
Hydraulic Drive ◽  
Working Fluid ◽  
Uneven Terrain ◽  
Operational Characteristics ◽  
High Dynamic ◽  
Hydraulic Accumulator ◽  
Technical Solutions

During the movement of the tractor on the uneven terrain, there are fluctuations that cause jumps of the working fluid in the hydraulic system and high dynamic loads. The solution to this problem is the use of an energy-saving hydraulic drive with a hydraulic accumulator and a system of aggregates this leads to increased efficiency and increased productivity of skidding grippers. A mathematical model of working processes with an energy-saving hydraulic drive is compiled.

scholarly journals Research on Energy Saving and Reconstruction of Lithium Battery in RTG Container Crane

2018 ◽  
Vol 189 ◽  
pp. 052031
Author(s):  
Xia Zhenjie ◽  
Yang Hui ◽  
Xue Ji’ai ◽  
Dai Wenjian ◽  
Ouyang Weiping ◽  
...  
Keyword(s):  
Energy Saving ◽  
Lithium Battery ◽  
Container Crane

A New Type of Energy-Saving Magnetic Amplifier Controlling Inductive Load

2011 ◽  
Vol 347-353 ◽  
pp. 3995-3998
Author(s):  
Shuai Yang ◽  
Lan Xue ◽  
Jian Sheng Cheng
Keyword(s):  
Energy Saving ◽  
Iron Core ◽  
Inductive Load ◽  
Sodium Lamp ◽  
Core Column ◽  
Good Energy ◽  
New Type ◽  
Magnetic Amplifier ◽  
Saving Effect ◽  
High Pressure Sodium Lamp

A new type of energy-saving magnetic amplifier controlling current and voltage of inductive load has been designed. The energy-saving magnetic amplifier with two windings wrapped across one iron core column can change impedance of the main winding by means of PWM controlling AC excitation current. The energy-saving magnetic amplifier has not used a special adjustable DC voltage circuit, has overcome disadvantages of complicated manufacturing process for the traditional excitation amplifier.The application shows the energy-saving excitation amplifier can achieve stepless dimming for high pressure sodium lamp to good energy-saving effect. The use cost of excitation amplifier is lower as simple production process, so its promotional value is great.

Design and Implementation of the Integrated Test Platform for the Hydraulic Components

2012 ◽  
Vol 605-607 ◽  
pp. 1340-1344
Author(s):  
Zhi Hai Liu ◽  
Qing Liang Zeng ◽  
Cheng Long Wang ◽  
Hong Xi Kang
Keyword(s):  
Performance Testing ◽  
Flow Diagram ◽  
Test Bed ◽  
Hydraulic Motor ◽  
Hydraulic Pump ◽  
Hydraulic Test ◽  
Access Technology ◽  
New Type ◽  
Composition Structure ◽  
Hydraulic Valves

In this paper, a new type of hydraulic test bed is developed which can be used for performance testing of hydraulic valves, hydraulic motor and hydraulic pump. The composition structure diagram of hydraulic system, power supply system, and the signal flow diagram of data acquisition system were designed. The characteristics of the LabWindows/CVI development tools and the usage of Prodave MPI/IE 6 network communication tools were introduced, also the database storage and access technology in LabWindows/CVI environment. It was proved through the practical application that the test bed is reliable and has the merit of higher precision and automation level, and simple operation.

Kinematics Analysis of the New Type of Offset Radial Piston Motor

2014 ◽  
Vol 889-890 ◽  
pp. 463-466
Author(s):  
Sheng Mei Luo ◽  
Wei Liu ◽  
Fu Fang Luo ◽  
Wei Wei Yu ◽  
Zhi Hong Ma
Keyword(s):  
Hydraulic System ◽  
Pure Water ◽  
Low Noise ◽  
Hydraulic Motor ◽  
General Motor ◽  
Low Speed ◽  
Structural Principle ◽  
New Type ◽  
Type Motor ◽  
Startup Performance

This paper introduces the structural principle of a new offset radial type motor. Through analyzing the kinematic characteristics of the motor piston theory, the result shows that the motor has characteristics of good startup performance at low speed, good sliding performance with sliding boots, smooth operation, low noise and so on, so the performance is superior to the general motor of low speed and high torque. Besides, comparing with other types of hydraulic motor, its lifetime increases and it is also easier to produce and repair. Moreover, beside the use of common hydraulic system, it can also be used in pure water hydraulic system under certain conditions.

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