The design of the mixed load simulation test bench

2017 ◽  
Author(s):  
Li Hong-guo ◽  
Su Shi-jie ◽  
Jia Lan-jun ◽  
Wang Bo ◽  
Meng Jie
Keyword(s):  
Test Bench ◽  
Simulation Test ◽  
Load Simulation ◽  
Mixed Load

scholarly journals Research on the Modeling, Control, and Calibration Technology of a Tracked Vehicle Load Simulation Test Bench

2019 ◽  
Vol 9 (12) ◽  
pp. 2557
Author(s):  
Haoliang Lv ◽  
Xiaojun Zhou ◽  
Chenglong Yang ◽  
Zhe Wang ◽  
Yimeng Fu
Keyword(s):  
Test Bench ◽  
Control Method ◽  
Dynamic State ◽  
Test Bed ◽  
Simulation Test ◽  
Tracked Vehicle ◽  
Resistance Torque ◽  
Model Control ◽  
The Stability ◽  
Load Simulation

The load simulation test bench plays an important role in tracked vehicle development. The stability and accuracy of the system have a vital impact on the experimental results. To accurately reproduce the power performance of a tracked vehicle on the test platform, this paper aims to investigate the model, control, and calibration method of the test bench. Firstly, the dynamic model of a tracked vehicle under complex driving conditions is analyzed and established, which takes driving torque as the input and driving wheel speed as the output. Then, considering the uncertainties and disturbances in the system model, a 2-degree-of-freedom (2-DOF) control method combined with a disturbance observer is proposed to solve the stability problem of the system. Furthermore, in order to investigate the accuracy of the simulation on the test bed, a method of calibrating the system by a flywheel set with standard inertia is proposed. In the calibration process, the influence of the system resistance torque and the original mechanical inertia on the results is considered, and the response time of the inertia simulation is analyzed in both a steady and dynamic state. Finally, the load simulation test is carried out with the corrected system. The test results show that the system has a high load simulation accuracy under various load simulation tests.

Design of a frictional–electromagnetic compound disk brake for automotives

2019 ◽  
Vol 234 (4) ◽  
pp. 1113-1122
Author(s):  
Shan Huang ◽  
Jiusheng Bao ◽  
Shirong Ge ◽  
Yan Yin ◽  
Tonggang Liu
Keyword(s):  
High Speed ◽  
Test Bench ◽  
Theory Model ◽  
Comsol Multiphysics ◽  
Simulation Test ◽  
Braking Performance ◽  
Brake Pads ◽  
Disk Brake ◽  
Braking Torque ◽  
The Magnetic Field

According to the disadvantages of serious wear and heat fade of friction pad in frequent and high speed braking of friction brakes, and the insufficient power of electromagnetic brakes in low speed braking, a novel frictional-electromagnetic compound disk brake which combines both of these two brake principles is proposed for automotives in this paper. The excitation coils are designed based on the Zhang Yicheng theory model, and the compound brake prototype is manufactured based on the self-made magnetic brake pads and existing automotive brakes. The magnetic field and dynamic of the brake are simulated by using COMSOL Multiphysics software. The frictional–electromagnetic compound brake tests are implemented on the reconstructive disk brake simulation test bench. The experimental results show that the friction braking torque accounts for more than 90% of the compound braking torque in the process of compound braking, and the trend of the change is the same as that of the compound braking torque. When the initial braking speed exceeds 75 km/h, the electromagnetic braking torque does not increase with the increase in speed, instead, it decreases slightly because of demagnetization. The designed frictional–electromagnetic compound disk brake has good braking performance.

Real-Time FPGA-Based Hardware-in-the-Loop Simulation Test Bench Applied to Multiple-Output Power Converters

2011 ◽  
Vol 47 (2) ◽  
pp. 853-860 ◽  
Author(s):  
Oscar Lucia ◽  
Isidro Urriza ◽  
Luis A. Barragan ◽  
Denis Navarro ◽  
Oscar Jimenez ◽  
...  
Keyword(s):  
Real Time ◽  
Output Power ◽  
Test Bench ◽  
Power Converters ◽  
Hardware In The Loop ◽  
Simulation Test

Development of a Climate and Altitude Simulation Test Bench for Handheld Power Tools

2018 ◽  
Author(s):  
Artur Martel ◽  
Fino Scholl ◽  
Dennis Weierter ◽  
Maurice Kettner
Keyword(s):  
Test Bench ◽  
Simulation Test ◽  
Power Tools

Objective Evaluation of ESP System Based on Hardware-in-Loop Test Bench

2013 ◽  
Vol 694-697 ◽  
pp. 2080-2084
Author(s):  
Sheng Yi Xuan ◽  
Chuan Xue Song ◽  
Guang Wei Meng
Keyword(s):  
Control Algorithm ◽  
Evaluation Method ◽  
Test Bench ◽  
Objective Evaluation ◽  
Control Effect ◽  
Simulation Test ◽  
Pd Control ◽  
Time Test ◽  
Hardware In Loop ◽  
Hardware In Loop Simulation

The evaluation tests play an important role in modern vehicle development. As a mean of judging vehicles performance and quality in the design period, the evaluation tests guide the development and the design. In this paper, objective evaluation of ESP is researched based on the self-correcting threshold PD control algorithm and ESP hardware-in-loop simulation test bench. Real-time test bench is used to simulate the different conditions and the evaluation methods of ESP are tested to verify the effect. By hardware-in-loop simulation, the results demonstrate the objective evaluation method evaluates the ESP system in accordance with the results of self-correcting threshold PD control algorithm and the method could accurately reflect the ESP control effect.

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