ELECTRICITY GENERATOR DEVICE FROM VEHICLE SUSPENSION VIBRATIONS USING A PIEZOELECTRIC DEVICE WITH AN ADJUSTABLE PRESSURE FORCE AMPLIFIER MECHANISM
Patent Information
- Authority / Receiving Office
- ID · ID
- Patent Type
- Patents
- Current Assignee / Owner
- BADAN RISET DAN INOVASI NASIONAL (BRIN)
- Filing Date
- 2022-08-23
- Publication Date
- 2026-07-16
AI Technical Summary
Existing piezoelectric transducer devices for generating electricity from vehicle suspension vibrations are limited by insufficient compressive force amplification and lack of safety mechanisms, particularly for lighter vehicles, leading to inefficient energy conversion and potential damage.
A device with an adjustable compressive force strengthening mechanism using multiple primary and secondary cylinders with varying pistons, combined with a piezoelectric transducer safety mechanism, to enhance energy generation and protect against impacts.
Enhances energy conversion efficiency by amplifying compressive force and includes safety features, enabling effective electricity generation from vehicle suspension vibrations without damage.
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Figure 0_ABST
Abstract
Description
Description POWER GENERATOR FROM VEHICLE SUSPENSION VIBRATIONS USING A PIEZOELECTRIC DEVICE WITH A STABILIZER MECHANISM ADJUSTABLE PRESSURE FORCE Invention Engineering Field This invention relates to a device for generating electricity from a vehicle suspension, utilizing a piezoelectric transducer. This invention is characterized by an adjustable pressure-amplifying mechanism, multiple primary and secondary cylinders containing multiple pistons of varying sizes, and a safety mechanism to prevent the unit from being easily damaged by impact. Background of the Invention Vibration in vehicles is one form of energy loss. Energy efficiency in a vehicle can be improved, one way is by processing energy losses into new energy that can be reused. Efforts to convert vibrations into electrical energy can be done using piezoelectric transducers. The design of a mechanical structure tool from vehicle suspension vibrations to generate electrical energy using this piezoelectric transducer has the advantage that it does not require a conventional generator to convert mechanical energy into electrical energy, making it more effective, concise and easy in efforts to harvest vehicle vibration losses into electrical energy for reuse. Previous inventions related to a device for generating electrical power from vehicle suspension are as disclosed in a patent publication with registration number P00202010055 in 2020 entitled "Electric Energy Harvesting Device Based on Vibration in Vehicle Suspension with Piezoelectric Transducer which describes a device for generating electrical energy from suspension vibrations in the form of a piezoelectric transducer arranged in the form of a rod paired with a pressure amplifier system so that when the vehicle moves the pressure from the suspension will be doubled in pressure to deform the piezoelectric and will produce electricity. The drawback of the patent is that the structure of the device is only effective for use on vehicles with a certain weight, where if it is used on a vehicle with a lighter weight, the compressive force generated from the suspension vibration is also relatively small so that the compressive force required to deform the piezoelectric will be lacking because the compressive force amplifier system is only available in one certain capacity. Another weakness is the absence of a piezoelectric transducer safety mechanism, where the piezoelectric transducer circuit will move on its base when excessive pressure occurs, so that if there is an obstacle on the base of the moving mechanism, it will be dangerous or cause damage to the piezoelectric transducer used. Another invention related to a device for generating electrical power from suspension vibrations is patent no. US7936113B2 entitled “Harvesting Energy from Vehicular Vibration Using Piezoelectric Devices” which describes a device for generating electrical energy from vehicle suspension using piezoelectric transducers placed on suspension shock absorber components. Electrical energy generation is carried out by deforming the piezoelectric transducer through the pressure generated through the movement mechanism of the suspension damper tube when the vehicle travels over an uneven road surface. The drawback of the method and device in the patent is the lack of a mechanism to amplify the compressive force from the vibrations received, severely limiting the ability to deform the piezoelectric transducer. Another drawback is the lack of a safety mechanism. piezoelectric transducer To address the shortcomings of the previous invention, this invention proposes a power generating device from a vehicle suspension, utilizing a piezoelectric transducer device. This invention is characterized by the presence of a controllable pressure amplifying mechanism in the form of multiple primary and secondary cylinders containing several pistons of varying sizes, as well as a safety mechanism to prevent the unit from being easily damaged by impact. Brief Description of the Invention This invention aims to overcome the limitations of the previous invention, and the main objective of this invention is to provide a device that can generate electrical energy from the vehicle suspension, especially by using a piezoelectric transducer. The present invention comprises a suspension shock absorber, a primary multi-cylinder mounted on a suspension spring support, a suspension spring mount located at the bottom of the primary cylinder mount, and a piezoelectric generator unit connected via a flexible pipe connector. In the present invention, the primary multi-cylinder is characterized by the presence of small pistons, the suspension spring mount is characterized by the presence of a pressure bolt and its lock nut, and the piezoelectric generator unit is characterized by the presence of large pistons, and the presence of a piezoelectric transducer safety mechanism from impact. The test simulation was conducted with variations in the ratio of the number of small pistons in the primary cylinder to the large pistons in the secondary cylinder. In one device filled with three piezoelectric transducer rods, a vehicle speed of 30 meters per second, a vehicle weight of 1.5 tons and a road surface roughness of class C based on the ISO / TC108 / SC2N67 standard, it produced 93.5 watts of electrical power at a piston area ratio of one to four.
Claims
Claim 1. A device for generating electricity from vibrations in a vehicle suspension using a piezoelectric device with an adjustable force amplifying mechanism, comprising: • a suspension shock absorber (110), in the form of a shock absorber consisting of a suspension spring (111), a rubber shock absorber protector (112), a suspension support (113), a suspension nut (114), a bearing ring (115), a return spring (116), a beveled screw (117), a primary cylinder mount (118), a hexagonal slotted round-headed bolt (131) connecting the main axle to the vehicle body; • a multiple primary cylinder (130), located at the top of the suspension shock absorber (110) mounted on the primary cylinder mount (118) and attached below the suspension support (113) consisting of several small pistons (132) and small piston return springs (133), functioning as a receiver for the compression force of the suspension vibration; • a suspension spring mount (120), located at the bottom of the primary cylinder mount (118),consisting of a pressure bolt (121) and lock nut (122), functioning as a support for the upper part of the suspension spring (111) and connecting the suspension vibration pressure force to the primary multi-cylinder (130); • a flexible pipe line connector (140), having a naple bolt (142a, 142b) and a seal ring (141a, 141b) at each end, connects the primary multi-cylinder (130) with the piezoelectric generator unit (150); • piezoelectric generator unit (150), mounted on the vehicle body connected to the primary multiple cylinder (130) via a flexible pipe connector (140) comprising additional secondary cylinders (151a,151b), large pistons (152a,152b,152c,152d), a primary secondary cylinder (153), a piezoelectric generator mounting plate (154), a secondary cylinder support frame (155a,155b), a fluid pipe (156a,156b), a pipe nipple (157a,157b), a closed fluid line terminal (158), a piezoelectric circuit cover (159a,159b), a safety spring bolt lock nut (160a,160b),safety spring support (161a,161b), safety spring bolt (162a,162b), safety spring ring (163a,163b), safety spring (164a,164b), pressure safety piston (165a,165b), secondary cylinder support frame hook screw (166a,166b), additional secondary cylinder hook screw (167a,167b), piezoelectric transducer (168a,168b), and piezoelectric container (169a,169b) function as a vibration suspension pressure amplifier, piezoelectric transducer safety, and mechanical energy converter into electrical energy; where on the • suspension spring mount (120), it is characterized by the presence of a pressure bolt (121) which is useful for pressing small pistons (132) and a lock nut (122) which is useful for locking the position of the pressure bolt (121) both of which are useful for regulating the number of active and inactive pistons on the primary multi-cylinder (130); • primary multi-cylinder (130),characterized by the presence of small pistons (132) which are useful for receiving the pressure of suspension vibrations and pressing the fluid in the primary cylinders; • the piezoelectric generator unit (150) is characterized by the presence of large pistons (152a, 152b, 152c, 152d) which are useful for receiving pressure from the primary cylinder fluid so as to produce greater pressure and press the piezoelectric transducer (168a, 168b)., 2. A power generating device from vibrations in a vehicle suspension as in claim 1, wherein the primary multiple cylinder (130) has at least two small pistons (132) and the number of active and inactive cylinders can be adjusted by tightening or loosening the pressure bolt (121) and then tightening the lock nut (122) after the adjustment is completed.
3. A means of generating electricity from vibrations in a vehicle suspension as in claim 1, wherein the piezoelectric transducer (168a,168b) in the piezoelectric generator unit (150) can be adjusted to 5 pressure strengths by adding or reducing additional secondary cylinders (151a,151b).
4. A means of generating electricity from vibrations in a vehicle suspension as in claim 1, wherein the piezoelectric transducer 10 (168a, 168b) in the piezoelectric generator unit (150) is protected from damage by the presence of a safety spring (164a, 164b), by tightening or loosening the safety spring bolt (162a, 162b).