Integrated InAs/GaSb 3D magnetic field sensors for “the intelligent tire”

Yilmazoglu, Oktay; Brandt, M.; Sigmund, Jochen; Genc, Ezgi; Hartnagel, H. L.

doi:10.1016/s0924-4247(01)00700-2

Cited by 92 publications

(54 citation statements)

References 8 publications

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“…The Darmstadt Tire Sensor was developed by researchers at the University of Darmstadt in Germany [1,2,15,74]. Like the SWT, the Darmstadt sensor uses magnets embedded into the tire, but into the tread rather than the sidewall.…”

Section: Darmstadt Sensormentioning

confidence: 99%

Investigation into use of piezoelectric sensors in a wheeled robot tire for surface characterization

Armstrong

Sandu

Taheri

2015

Journal of Terramechanics

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A differential steered, 13.6 kg robot was developed as an intelligent tire testing system and was used to investigate the potential of using piezoelectric film sensors in small tube-type pneumatic tires to characterize tire-ground interaction.One focus of recent research in the tire industry has been on instrumenting tires with sensors to monitor the tire, vehicle, or external environment. On small robots, tire sensors that measure the forces and deflections in the contact patch could be used to improve energy efficiency and/or mobility during a mission.The robot was assembled from a SuperDroid Robots kit and instrumented with low-cost piezoelectric film sensors from Measurement Specialties between the inner tube and the tire. An unlaminated and a laminated sensor were placed circumferentially along the tread and an unlaminated sensor was placed along the sidewall. A slip ring transferred the signals from the tire to the robot. There, the signal conditioning circuit extended the time constant of the sensors and filtered electromagnetic interference. The robot was tested with a controlled power sequence carried out on polished cement, ice, and sand at three power levels, two payload levels, and with two tire sizes.The results suggest that the sensors were capable of detecting normal pressure, deflection, and/or longitudinal strain. Added payload increased the amplitude of the signals for all sensors. On the smaller tires, sensors generally recorded a smaller, wider signal on sand compared to cement, indicating the potential to detect contact patch pressure and length. The signals recorded by the unlaminated sensor along the tread of the smaller tire were lower on ice compared to cement, indicating possible sensitivity to tractive force. Results were less consistent for the larger tires, possibly due to the large tread pattern.

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Section: Darmstadt Sensormentioning

confidence: 99%

Investigation into use of piezoelectric sensors in a wheeled robot tire for surface characterization

Armstrong

Sandu

Taheri

2015

Journal of Terramechanics

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“…タイヤと路面間の摩擦係数などを測定することを提案している (Yilmazoglu et al, 2001)．Sergio (Sergio et al, 2006) や，Matsuzaki (Matsuzaki et al, 2006 (Matsuzaki et al, 2008)．また，Hiraoka (Hiraoka et al, 2009)，Matsuzaki (Matsuzaki et al, 2010(Matsuzaki et al, , 2012 Experimental apparatus composed of a tire rotating device, a force plate and a parallel mechanism. The parallel mechanism can apply high vertical and horizontal loads to the tire.…”

Section: 緒言近年，自動車の安全性向上を目的として，Abs(antilockmentioning

confidence: 99%

Measurement of friction coefficient between a tire and grounding surface with the deformation of inner of the tread

Tachiya

Ise

Higuchi

et al. 2018

Transactions of the JSME (In Japanese)

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Previously, in order to measure friction coefficients of tire grounding surface in car slipping, a cantilever-type sensor that can detect the vertical load and friction force as well as the direction of the friction force simultaneously has been proposed. The sensing part, which contacts grounding surface, of the proposed sensor is pulled out of the tire tread through a hole. However, penetrating the hole through tire tread part has some problems: leakage of air from the tire, weakening of the rigidity etc. Therefore this study proposes a sensor that can be installed on the inner surface of a tire without penetrating hole through the tire tread by filling the detecting part of the sensor in the inner part of the tire tread. If the detecting part filled in the inner surface has sufficient airtight structure from the integral manufacturing, the durability of the sensor as well as retaining air pressure are expected. This study measured the deformation of the inner part of the tread through the detecting part under high-load at tire slipping state. Furthermore, relation between the measurement values and the force applied to the tire from grounding surface was clarified. As a result, the study confirmed that the proposed method can detect the friction coefficients between the tire and tire grounding surface.

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“…Many studies have been done on integrating various types of sensors in tires [1,2]. The so called ''intelligent tire'' concept has been used specifically to estimate tire-road friction in a few studies [3,4] that shows the application of intelligent tires in terrain/ride characteristics identification [5,6].…”

Section: Introductionmentioning

confidence: 99%

Estimation of the Tire Contact Patch Length and Normal Load Using Intelligent Tires and Its Application in Small Ground Robot to Estimate the Tire-Road Friction

Khaleghian¹,

Ghasemalizadeh

Taheri

2016

Tire Science and Technology

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Tire-road friction estimation is one of the most popular problems for the tire and vehicle industry. Accurate estimation of the tire-road friction leads to better performance of the traction and antilock braking system controllers, which reduces the number of accidents. Several researchers have worked in the field of friction estimation, and many tire models have been developed to predict the tire-road friction. In this article, an intelligent tire, which has an embedded accelerometer placed on the inner liner of the tire, is used to estimate the tire contact patch length parameter and normal load. To accomplish this, first, an existing tire testing trailer equipped with a force hub to measure tire forces and moments, a high-accuracy encoder to measure the angular velocity of the wheel, and VBOX, which is a global positioning systembased device, to estimate the longitudinal speed of the trailer was used. As a practical application for the normal load algorithm, a wheeled ground robot, which is equipped with several sensors, including an accelerometer and a flexible strain sensor inside the tire (used for terrain identification purposes), was designed and built. A set of algorithms was developed and used with the test data that were collected with both the trailer and the robot, and the contact patch length and the normal load were estimated. Also, the friction potential between the tire and the road was evaluated using a small ground robot.

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Integrated InAs/GaSb 3D magnetic field sensors for “the intelligent tire”

Cited by 92 publications

References 8 publications

Investigation into use of piezoelectric sensors in a wheeled robot tire for surface characterization

Investigation into use of piezoelectric sensors in a wheeled robot tire for surface characterization

Measurement of friction coefficient between a tire and grounding surface with the deformation of inner of the tread

Estimation of the Tire Contact Patch Length and Normal Load Using Intelligent Tires and Its Application in Small Ground Robot to Estimate the Tire-Road Friction

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