ANALYSIS AND PERFORMANCE OF A CHOPPER FED DC SEPARATELY EXCITED MOTOR UNDER REGENERATIVE BRAKING OPERATION

1987 ◽  
Vol 12 (2) ◽  
pp. 123-142
Author(s):  
K. B. NAIK ◽  
M. S. PANESAR
Keyword(s):  
Regenerative Braking ◽  
And Performance

Modelling and Performance Assessment of an Antenna-Control System

1982 ◽  
Vol 104 (1) ◽  
pp. 41-48
Author(s):  
C. R. Burrows
Keyword(s):  
Computer Simulation ◽  
Energy Transfer ◽  
Control System ◽  
Qualitative Data ◽  
Regenerative Braking ◽  
General Interest ◽  
Continuous Control ◽  
And Performance ◽  
And Control ◽  
Search Capability

An assessment is made of a surveillance-radar control system designed to provide a sector-search capability and continuous control of antenna speed without unwanted torque-reaction on the supporting mast. These objectives are attained by utilizing regenerative braking, and control is exercised through Perbury CVTs. A detailed analysis of the system is given. The models derived for the Perbury CVTs supplement the qualitative data contained in earlier papers. Some results from a computer simulation are presented. Although the paper is concerned with a particular problem, the analysis of the CVTs, and the concept of using energy transfer to control large inertial loads, are of more general interest.

Optimization of control strategy for regenerative braking of an electrified bus equipped with an anti-lock braking system

2011 ◽  
Vol 226 (4) ◽  
pp. 494-506 ◽  
Author(s):  
J Zhang ◽  
D Kong ◽  
L Chen ◽  
X Chen
Keyword(s):  
Control Theory ◽  
Control Strategy ◽  
Regenerative Braking ◽  
Hardware In The Loop ◽  
Optimum Control ◽  
Braking System ◽  
Simulation Results ◽  
Braking Control ◽  
And Performance

This paper mainly focuses on the regenerative braking control of an electrified bus equipped with an anti-lock braking system (ABS). The regenerative braking works simultaneously with a pneumatic ABS, thus liberating the remaining energy of the vehicle while its wheels tend to lock under an extreme brake circumstance. Based on one representative pneumatic ABS strategy and optimum control theory, the optimization for regenerative braking control is proposed, in which the frictional and regenerative brake forces are controlled integrally to obtain maximal available adhesion. The simulation results indicate that brake stability and performance on different roads profit from the optimization. Hardware-in-the-loop (HIL) tests are accomplished on the pneumatic braking system of an electrified bus. HIL tests validate the results of simulation and guarantee the advantage and reliability of the optimization. The adaptability of optimization to hardware and software of the brake controller is also ensured. The field in which further research could be carried out is proposed.

scholarly journals The Integrated Kinetic Energy Recoup Drive (i-KERD): An Optimized Powertrain for EVs, HEVs and FCEVs

2021 ◽  
Vol 13 (1) ◽  
pp. 8
Author(s):  
Min Yang ◽  
Tao Wang ◽  
Chunji Guo ◽  
Chris Ellis ◽  
Yuefeng Liao
Keyword(s):  
Kinetic Energy ◽  
Energy Savings ◽  
Performance Enhancement ◽  
Regenerative Braking ◽  
Railway Transportation ◽  
Hybrid Powertrain ◽  
Peak Shaving ◽  
Underground Railway ◽  
And Performance ◽  
Heavy Construction

In this paper, a particular form of flywheel hybrid powertrain, namely, the Integrated Kinetic Energy Recoup Drive (i-KERD) is fully explored and its applications for EVs, HEVs and FCEVs in recent years to show the energy-savings and performance enhancement potential of this innovative powertrain technology. It is shown that the i-KERD is a small highspeed flywheel integrated into an e-CVT, or power-split hybrid drive. Under NEDC or WLTC, typically it can achieve some 40% energy savings and >50% gain in 0–100 kph acceleration due to effective regenerative braking mechanism of the integrated flywheel power system. In addition to its “peak-shaving” capability, the highly-efficient, long-life flywheel power on-board, is able to keep the kinetic energy of the vehicle fully recycled, rather than dissipated during braking. The i-KERD technology has also been applied to urban railway transportation (i.e., underground railway) and off-road heavy construction equipment, where regenerative braking plays a great role on energy efficiency.

Adaptive Robust Control for Driving and Regenerative Braking of Electric Vehicle

2013 ◽  
Vol 441 ◽  
pp. 887-891
Author(s):  
Long Xu ◽  
Jun Ping Wang ◽  
Yuan Bai ◽  
Gai Ling Hu
Keyword(s):  
Robust Control ◽  
Electric Vehicle ◽  
Adaptive Robust Control ◽  
Disturbance Attenuation ◽  
Regenerative Braking ◽  
Stability Robustness ◽  
Recovery System ◽  
And Performance ◽  
The Stability ◽  
Braking Energy Recovery

The driving and braking energy recovery system of electric vehicle faces a lot of uncertainties, including the system parameters and the running environment uncertainties. An adaptive robust control (ARC) is presented in this paper to treat the problems including disturbance and parameter variation in the design of driving and regenerative braking controller. It can enhance the stability robustness and performance robustness. A model of the driving and regenerative braking system is constructed and then the ARC controller is designed. The experiment results show that the controller based on ARC theory has better performance of stability, robustness, and disturbance attenuation than traditional PID controller.

Parameter Matching and Performance Simulation for a Distributed Power Extended-Range Electric Vehicle

2014 ◽  
Vol 496-500 ◽  
pp. 1360-1364 ◽  
Author(s):  
Da Wang ◽  
Chuan Xue Song ◽  
Shi Xin Song
Keyword(s):  
Electric Vehicle ◽  
Regenerative Braking ◽  
Manufacturing Cost ◽  
Mass Ratio ◽  
Performance Simulation ◽  
Distributed Power ◽  
Extended Range ◽  
Parameter Matching ◽  
Curb Weight ◽  
And Performance

In order to solve the problem of low power-mass-ratio and high curb-weight in existing extended-range electric vehicle, this paper proposed a distributed power design, and calculated the powertrain parameters of this design, which was based on a commercially available extended-range electric vehicle. Through parameter calculation and simulation, this design was proved to significantly lower the curb weight and manufacturing cost of an extended range electric vehicle, and improve the efficiency of regenerative braking at the same time, finally lead to longer mileage.

Optimal Control and Performance Based Design of the Blended Hydraulic Hybrid

2015 ◽  
Author(s):  
Tyler Bleazard ◽  
Hiral Haria ◽  
Michael Sprengel ◽  
Monika Ivantysynova
Keyword(s):  
Optimal Control ◽  
Dynamic Programming ◽  
High Pressures ◽  
High Efficiency ◽  
Hybrid Vehicles ◽  
Operating Conditions ◽  
Regenerative Braking ◽  
Hydraulic Unit ◽  
Hydraulic Hybrid ◽  
And Performance

Due to a growing awareness of fuel prices and government regulations on emissions there has been an expanding interest in hybrid vehicle research. Though much of these efforts have been in electric hybrid vehicles, hydraulic hybrid vehicles show great potential due to their higher power density, higher efficiency in regenerative braking, and lower cost of materials. Many different hydraulic hybrid architectures have been proposed, one of the most common being the series hybrid. The series hybrid has many deficiencies due to the hydraulic units being connected directly to the high pressure accumulator. In many operating conditions the units operate inefficiently at low displacements and high pressures. Additionally the driver’s torque demand can exceed that available from the accumulator’s current pressure. As a result additional fluid must be pumped into the accumulator to raise the system pressure. This can result in a delay on the order of seconds in meeting the driver’s demand thereby yielding an undesirably sluggish response. To address these issues the authors’ research group previously introduced the blended hydraulic hybrid [1]. Using dynamic programming, an optimal control simulation tool, the blended hybrid showed improved efficiency and response when compared to the series hybrid [2]. This transmission achieves high efficiency and fast response partially through the inclusion of a hydrostatic transmission. In addition regenerative braking and blending of engine and accumulator power are realized through the use of actively and passively controlled valves. With these promising results, the Maha Fluid Power Research Center has begun designing and constructing a blended hydraulic hybrid SUV. In preparation for this the authors have developed a new sizing methodology to determine transmission sizing that meets both the efficiency and performance requirements of the designer. To explore the trends in blended hydraulic hybrid sizing a full factorial combination of hydraulic unit sizes, accumulator sizes and accumulator minimum pressures were optimally controlled for the Urban Dynamometer Driving Schedule (UDDS) using dynamic programming and maximum acceleration was simulated to obtain trends in performance.

Concentrated Driving Electric Passenger Vehicle Braking Control Strategy Optimization

2013 ◽  
Vol 339 ◽  
pp. 183-189
Author(s):  
Jun Zhi Zhang ◽  
Hui Zhou ◽  
Cheng Lin ◽  
Peng Liu
Keyword(s):  
Control Strategy ◽  
Brake System ◽  
Regenerative Braking ◽  
Passenger Vehicle ◽  
Braking Performance ◽  
Electric Bus ◽  
Braking Control ◽  
And Performance

Regarding the centralized driving electric bus as the research object, the influence of Regenerative braking for vehicle braking performance is analyzed, and the original brake system was optimized, a braking control strategy, which does not reduce the vehicle braking safety and performance on the conditions of recovering braking energy as much as possible.

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