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Related Concept Videos

Impulse01:13

Impulse

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According to Newton’s second law of motion, the rate of change of the momentum of an object is the net external force acting on it. The total change in momentum between two timepoints thus depends on both the external force acting on it and the time over which it acts. Describing this mathematically, the total change of an object’s motion is proportional to the force vector and the time over which it is applied. This product is called impulse.
Additionally, it can be shown that the...
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Impulse Response01:17

Impulse Response

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The impulse response is the system's reaction to an input impulse. In an RC circuit, the voltage source is the input, and the capacitor's voltage is the output. The system's state and output response before and after input excitation are distinctly defined.
Kirchhoff's law forms an input signal equation, with the capacitor's current and voltage providing the output. Substituting the current and dividing by RC yields a differential equation. The output for an impulse input is the impulse...
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Contact Angle01:13

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When a solid is dipped inside a liquid, the liquid surface becomes curved near the contact. For some solid–liquid interfaces, the liquid is pulled up along the solid, while for others, the liquid surface is convex or depressed near the solid surface. This phenomenon can be explained using the concept of cohesive and adhesive forces.
The adhesive force is the molecular force between molecules of different materials, that is, between the molecules of the solid and the liquid. The cohesive...
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Principle of Impulse and Moment01:15

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When one considers a rigid body undergoing a plane motion, which is essentially a blend of translational and rotational movement, the application of Newton's second law gives the formula for the translational movement of such a body. If this equation is multiplied by a time interval, dt, and then integrated over the limits of integration, it results in an equation that embodies the principle of linear impulse.
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Impulse-Momentum Theorem00:49

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The total change in the motion of an object is proportional to the total force vector acting on it and the time over which it acts. This product is called impulse, a vector quantity with the same direction as the total force acting on the object.
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Open Angle Glaucoma: Treatment01:27

Open Angle Glaucoma: Treatment

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In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
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Structural Design and Manufacturing of a Cruiser Class Solar Vehicle
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Angle Sensor Module for Vehicle Steering Device Based on Multi-Track Impulse Ring.

Seong Tak Woo1, Young Bin Park2, Ju Hee Lee3

  • 1Gyeongbuk Institute of IT Convergence Industry Technology, Gyeongsan-si 38463, Korea. stwoo@gitc.or.kr.

Sensors (Basel, Switzerland)
|January 30, 2019
PubMed
Summary

A new multi-track encoder-based torque angle sensor (TAS) module minimizes components and angle detection errors in vehicle steering systems. This advanced automotive technology achieves an average deviation of 0.4°, ensuring reliable performance for Industry 4.0 applications.

Keywords:
EPSS (Electric Power Steering System)TAS modulemulti-track encoderself-driving Carsteering angle sensor

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Area of Science:

  • Automotive Engineering
  • Sensor Technology
  • Mechatronics

Background:

  • Industry 4.0 drives advancements in automotive automatic operation technology.
  • The torque angle sensor (TAS) module is crucial for precise steering wheel system sensing.
  • Conventional TAS modules suffer from complex gears and backlash-induced angle detection errors.

Purpose of the Study:

  • To propose a novel multi-track encoder-based TAS module for vehicle steering.
  • To minimize component count and angle detection error compared to existing modules.
  • To develop and validate an angle detection signal processing board for automotive applications.

Main Methods:

  • Designed a multi-track encoder-based TAS module structure.
  • Fabricated an angle detection signal processing board.
  • Conducted test stand evaluations, including electromagnetic interference (EMI) reliability testing.

Main Results:

  • The proposed TAS module demonstrated excellent performance with an average deviation of 0.4°.
  • Verified applicability to actual vehicles through rigorous testing.
  • Confirmed electromagnetic interference (EMI) environmental reliability.

Conclusions:

  • The developed multi-track encoder-based TAS module offers a significant improvement over conventional systems.
  • The module meets technical requirements for precise steering angle detection with minimal computation.
  • This technology is suitable for integration into modern vehicle steering systems.