Regenerative braking refers to a system in which the kinetic energy of the vehicle is stored temporarily, as an accumulative energy, during deceleration, and is reused as kinetic energy during acceleration or running. This awardwinning regenerative suspension system could recover 100 to 400watts of vibration kinetic energy from a passenger car traveling at 100kmh. Thus by using regenerative suspension system charging of battery as well as fuel consumption is. Unlike traditional suspension systems which suppress the vibrations by dissipating the vibration energy into waste heat, the regenerative suspension with energy harvesting shock absorbers can convert the traditionally wasted energy into electricity. Audi regenerative shock absorber recaptures energy stephen edelstein august 15, 2016 comment now. The energy dissipated by the suspension system is harvested by supercapacitors. This rotating motion of pinion is then coupled to a reduction gearbox which will increase the.
From regenerative suspension to electromagnetic suspension. Block diagram of mechanical regenerative system mechanical regenerative system consists of a rack and pinion assembly which will convert the linear motion of wheel to rotary motion. First fully regenerative active suspension system by zf. Therefore load on the vehicle engine is reduced and the requirement of fuel is reduced at certain level. In the current research on the energy regenerative suspension, the.
Section 2 describes the general setup and working principle for the hydropneumatic suspension system and the effect of the hydraulic rectifier. Aug 15, 2016 audi regenerative shock absorber recaptures energy stephen edelstein august 15, 2016 comment now. An energyregenerative suspension system asme international. Energy harvesting, regenerative vehicle suspension, design. The regenerative energy suspension system ijser journal. Electromagnetic suspension system linkedin slideshare. One of the important losses is the energy dissipation from the vibration of suspension system. First fully regenerative active suspension system by zf first fully regenerative active suspension system by zf. Study of a semi active electromagnetic regenerative. Nissan 8 developed a fully active suspension system with hydraulic actuators, which suppresses the suspension vibration by accumulating or. Based on the traditional energy regenerative efficiency calculation, a novel selfsupply energy efficiency concept is.
Pdf fabrication and testing of electromagnetic energy. Jul 31, 20 bose suspension system the disadvantages are as follows. The introduction of the energy regenerative system in the traditional suspension can improve the energy utilization rate of vehicles on the one hand and be bene. Genshocktechnology is a fully active system for cars which will combine dynamics, safety, and comfort characteristics with minimum energy consumption. Fluid viscosity increases within the damper as electromagnet intensity. Fabrication and testing of electromagnetic energy regenerative suspension system. Pdf almost all the automobiles use shock absorbers to damp out the. Peter els with regenerative braking technology reaching maturity manufacturers are studying other forms of energy regeneration, amongst these, regenerative suspension.
The three dimensions of ev suspension systems automotive iq. The specialized design of linear electromagnetic generator, which generates power from the relative linear motion. Electromagnetic regenerative suspension system for ground. Modeling and simulation of energyregenerative active. This project regenerative suspension system is designed with the hope that it is very much economical and help full to all vehicles to produce the compressed air. In accordance with the present invention, a mechanical regenerative suspension system, the means to significantly extend the range of the electric vehicle whether hybrid or allelectric. The voltage produces by energy regenerative suspension system is about 8 v for a single system. Increasing energy harvesting in regenerative suspension systems.
Us20060016629a1 us11183,472 us18347205a us2006016629a1 us 20060016629 a1 us20060016629 a1 us 20060016629a1 us 18347205 a us18347205 a us 18347205a us 2006016629 a1 us2006016629 a1 us 2006016629a1 authority us united states prior art keywords vehicle excess electrical capacity electrical suspension system prior art date 20040723 legal status the legal status is an assumption and is not a. From regenerative suspension to electromagnetic suspension systems author. Index termsvehicle suspension, energy regeneration, electromagnetic. This paper presents an energy regenerative suspension device that is able to harvest some of the wasted energy that is generated in a suspension system. Only 1020% fuel energy is used for vehicle mobility. The electromagnetic suspension system is easier to apply because hybrid or electric car have their own energy storage system that can control the peak power and regenerative power of the system 10. An energy regenerative vehicle suspension system development, optimization, and improvement by bo huang m.
Energy harvesting and control of a regenerative suspension system using switched mode converters by chenyu hsieh m. At the same time, increasing use of lightweight materials in suspension system and demand for regenerative suspension system for electric and hybrid vehicles is creating lucrative market opportunities. Energy harvesting from suspension system using regenerative. The main drawback of the regenerative braking principle is that it is not a continuous energy recovery system. A piston is disposed for reciprocating motion within a cylinder as a vehicles suspension system deflects. This project helped us to know the periodic steps in completing a project work. An energyregenerative suspension system request pdf. Article pdf available december 2015 with 742 reads. Theoretical results show a maximum of 10 % fuel efficiency can be recovered from vehicle suspension system by implementing regenerative shock absorbers 1.
Request pdf an energy regenerative suspension system this paper presents an energy regenerative suspension device that is able to harvest some of the wasted energy that is generated in a. It can also be used as a controllable damper that can improve the vehicles ride and handling performance. This paper considers an electromagnetic regenerative suspension system erss that recovers the kinetic energy originated from vehicle vibration, which is previously dissipated in traditional shock absorbers. The regenerative suspension systems have attracted much attention in recent years for the improvement of vibrating attenuating performance and reduction of energy dissipation. Figure 1 shows the structural scheme of a semiactive. With regenerative braking technology reaching maturity, manufacturers are studying other forms of energy regeneration, amongst these. The system is controlled by active electronics which optimize damping, which the inventors claim also results in a smoother ride compared to a conventional suspension. The hydraulic motor shaft is connected to an electric generator to generate electricity. The core component of the energy regenerative suspension system is energy regenerative shock absorber. From regenerative suspension to electromagnetical suspension. Important factors that affect the shockabsorbing and regenerative characteristics of the suspension system are studied.
For a traditional road vehicle suspension system, shock absorbers are mainly dissipating energy to reduce vibration. The hybrid system combines this energy regenerative system and active control in order to achieve good performance of vibrations reduction with little energy consumption. Above all, the amount of energy dissipation and the potential of energy. Genshock harvests waste energy on vehicles, machines, and aircraft, turning linear motion into usable electric power. Active automotive suspension systems have been under development for a number of years with recent introductions of various versions. Regenerative braking is a small, yet very important, step. And methods the suspension system of the wheeled vehicle equipped with thehighvoltage power storage unit includes following components figure 1.
Sep 03, 20 first fully regenerative active suspension system by zf first fully regenerative active suspension system by zf. Conclusion active suspension offers many benefits over conventional and semiactive suspension systems electromagnetic suspension is a high bandwidth and efficient solution for improving. In practice, if the damper of a suspension system is replaced with a regenerative force actuator rfa then the regenerative system can. Theoretical results show a maximum of 10 % fuel efficiency can be recovered from vehicle suspension system by implementing regenerative shock absorbers. An electromechanical regenerative vehicle suspension system is considered where the viscous. It utilizes four 4 independent variable displacement pumpmotor combinations on a common shaft to actuate each individual suspension unit. Proceedings of the world congress on engineering 20 vol iii, wce 20, july 3 5, 20. Conclusion as electromagnetic shock absorbers can be able to deliver almost continuous energy it can be used as a source of energy regenerative system it can be installed in the vehicles with less modification in the conventional suspension systems the amount of energy regenerated depends on the velocity of vehicle, roughness of the surfaces etc.
Although there have been several regenerative shock absorber developments over the past decade, including lineartubular electric motors and hydraulic actuator based systems, cost and. W hile lei zuos system regenerated energy by pairing an electricity generator to a conventional suspension system with steel springs and hydraulic shock absorbers other methods have since. The proposed electromagnetic regenerative shock absorbers ersas. Energy harvesting and control of a regenerative suspension. Mar 10, 20 now design the circuit of regenerative braking and suspension system in such a manner so that it can charge system battery. The main categories of energy regenerative suspension are illustrated from different energy recovery methods, and the research status of hydraulic energy regenerative suspension is comprehensively analyzed.
The conventional vehicle suspension dissipates the mechanical vibration energy in the form of heat which waste considerable energy. I will do this a bit differently considering what is this forum like, and begin with a very quick summary of what this is about in simple words that anyone can understand, so, tl. Design and experiment study of a semiactive energy. Renewable energy technologies, particularly in electric vehicles evs. Aug, 20 conclusion as electromagnetic shock absorbers can be able to deliver almost continuous energy it can be used as a source of energy regenerative system it can be installed in the vehicles with less modification in the conventional suspension systems the amount of energy regenerated depends on the velocity of vehicle, roughness of the surfaces etc. Oct 08, 2014 electromagnetic regenerative suspension system for ground vehicles abstract.
A highefficiency regenerative shock absorber considering twin ball. Regenerative suspension prototype demo xavier martinez. Now design the circuit of regenerative braking and suspension system in such a manner so that it can charge system battery. A regenerative pump concept can minimize the power requirement for the low frequency active system. This paper considers an electromagnetic regenerative suspension system erss that recovers the kinetic energy originated from vehicle vibration. A suspension system can be considered active when an outside power source is used to alter its characteristics, and these systems can be placed into one of three 3 different categories. Hydraulic fluid passes through an hydraulic motor to turn its shaft. With the wide application of piezoelectric crystals and intelligent materials, energy regenerative shock absorbers are mainly divided into hydraulic and electromagnetic. Performance evaluation and damping characteristics of. When the vehicle travels on rough road, it will operate the regenerative system and harvest the kinetic energy from the suspension vibration and convert to electricity 5. Two short videos that show regenerative suspension system on the intertronic gresser patent page, there are two short videos, and more information about their regenerative suspension system. In reality, many world war ii tanks, and mainly postwar tanks, implemented one or another variety of regenerative steering which made them lose significantly less speed when turning. The proposed effort includes modeling, simulation, and evaluation of a power regenerative suspension system based on empirical and modeled results from genshock, our breakthrough regenerative suspension technology. Regenerative braking is commonly used in hybrids and electric cars to recover energy normally lost.
Also, regenerative braking has caught the eye of major researchers in the last few decades and its most important application is the braking system on electric trains and vehicles. In this paper, an accurate design for the regenerative suspension system is proposed, namely hydropneumatic regenerative suspension system hprss, it is organized as follows. Design and testing of regenerative suspension system. This allows the damping characteristics of the shock absorber to be continuously controlled by varying the power of the electromagnet. A regenerative suspension system is introduced in the vibration exciter assembly to attenuate or eliminate the energy generated by the excitation. The opportunity to vastly reduce the consumption of fossil fuels to eliminate to great extent the creation of hazardous emissions. By using regenerative suspension system 100400 watts average power is generated with the help of middle size vehicles. The introduction of the energyregenerative system in the traditional suspension can improve the energy utilization rate of vehicles on the one hand and be bene. In this paper, an electromagnetic energy regenerative suspension system is proposed to achieve active control and vibration energy harvesting.
Regenerative shock absorber in the vehicle suspension system. Another system has been developed by a team at new york state university. The regenerative suspensions have attracted much attention in recent years for the improvement of vibration attenuating performance as well as the reduction of energy dissipation. Increased volume of the suspension, since the force density of the active part of hydraulics is higher than for electromagnetic actuation, i. For this system, a pid controller based on bp neural network algorithm is designed and vehicle dynamic performances are studied. Review on energy regenerative suspension systems for vehicles. Pdf design, fabrication and testing of regenerative shock. Electronic regenerative damping in vehicle suspension systems. A selfpowered regenerative skyhook control strategy was proposed to overcome the tradeoff between passive control insufficient control and active control external energy demand for the suspension system. The regenerative suspension system functions by reciprocating part of the system. Automotive suspension system market size, share, industry. A regenerative shock absorber is a type of shock absorber that converts. This technology has the ability to continuously recover a vehicles vibrationless energy dissipation that occurs due to road irregularities, vehicle acceleration, and braking, and use the energy to reduce fuel consumption. Electrical and computer engineering, concordia university, 2011 b.
Vibration energy harvesting in automotive suspension. Thus the above evidences of research works reveal that the energy from the suspension system is substantial and cannot be overlooked. The semiactive energy regenerative suspension system proposed in this paper is composed of a spring, an energy regenerative damper, an energy regenerative circuit and an energy storage element. A magnetorheological damper or magnetorheological shock absorber is a damper filled with magnetorheological fluid, which is controlled by a magnetic field, usually using an electromagnet. Electrical and computer engineering, university of ottawa, 2008 thesis submitted in partial fulfillment of the requirements for the degree of. Apr 16, 2017 regenerative suspension prototype demo xavier martinez. Although there have been several regenerative shock absorber developments over the past decade, including lineartubular electric motors and hydraulic actuator based systems, cost and complexity have delayed large scale deployment in series production.
Regenerative suspension system hprss, it is organized as follows. Assemble the tools according to design,do all the connection see that all the parts are working. The energy storage element is just used for storing energy instead of powering the linear motor. A new development is the introduction of regenerative braking technologies.
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