An Innovative Energy Harvesting Shock Absorber System Using Cable Transmission

Abstract

This paper presents an innovative design of an energy harvesting shock absorber using cable transmission called Cable-Dynamics Energy Harvesting Shock Absorber (CD-EHSA). It includes the design, modelling, bench experiments, and road tests results. Experimental tests are carried out with the CD-EHSA system in a MTS 835 machine, in order to analyze its behavior and validate the computational model of the CD-EHSA with the tests carried out on the actual component. Likewise, the paper presents the results of recovered electric power by the system during road tests at a speed between 20-30 Km/h. With four CD-EHSA installed in a Renault Twizy, an average power of 105W and power peaks of 400-500W when passing through speed bumps are obtained. The designed system mechanical can reach an efficiency around 60%.

Methodology for Comprehensive Comparison of Energy Harvesting Shock Absorber Systems

“…According to our methodology, it is necessary to have the same testing conditions for our EHSA systems to be compared. We selected a motor whose parameters were used in the work reported by Lincoln [14], obtained from a commercial motor (Maxon Motor 218010) [39]. Based on this design objective, the three EHSA models are studied and geometrically adapted to achieve the damping objective.…”

“…As an example, in this work, three of the most used EHSA systems in the literature were selected: ball screw, rack and pinion, and cable transmission [14].…”

Global Optimization of the Hydraulic-Electromagnetic Energy-Harvesting Shock Absorber for Road Vehicles With Human-Knowledge-Integrated Particle Swarm Optimization Scheme

“…However, LEMSA is inappropriate for vehicle applications because LEMSA with sufficient recovery power to meet the damping requirements is too large in size to be packaged in a road vehicle [19], [20]. REMSA generates electricity using low-cost rotary motors, and both mechanical [21], [22] and hydraulic rectifiers [23], [24] have been studied to convert reciprocating vibration into unidirectional rotation of the generator for REMSA. This reduces irregular oscillation and enhances the durability of the electricity generation systems.…”

Can a Semi-Active Energy Harvesting Shock Absorber Mimic a Given Vehicle Passive Suspension?

“…In this paper, the focus is on the latter, the so-called Energy Harvesting Shock Absorbers (EHSA) [ 1 ]. Energy-recovering suspensions can function as semi-active suspensions, so that it is possible to regulate the stiffness and damping coefficients of the suspension by taking advantage of the recovered energy [ 2 ].…”

“…Within the latter, many systems have been presented to convert linear motion into rotational motion to take advantage of the rotation of a motor generator to recover energy. It is possible to find EHSA based on ball-screws [ 15 , 16 ], rack and pinion [ 17 , 18 ], hydraulic turbine [ 19 ], cable transmission [ 2 ], or based on special mechanisms [ 10 , 20 ].…”