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For the Inventor, By the Inventor

Gardena, CA, United States of America

Chia-Chou Yeh

USPTO Granted Patents = 12

Average Co-Inventor Count = 2.3

ph-index = 6

Forward Citations = 228(Granted Patents)


Location History:

  • Garena, CA (US) (2012)
  • Lomita, CA (US) (2011 - 2013)
  • Gardena, CA (US) (2013 - 2017)

Company Filing History:

goldMedal12 out of 30,943 
 
Gm Global Technolgoy Operations, Inc.
 patents

Years Active: 2011-2017

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12 patents (USPTO):Explore Patents
1. 9800183 - Method and apparatus for controlling an electric machine (2017-10-24),
2. 9356551 - Method and apparatus for controlling an electric motor employed to power a fluidic pump (2016-05-31),
3. 8762116 - Vehicle motor temperature determination (2014-06-24),
4. 8565954 - Vehicle motor temperature determination (2013-10-22),
5. 8497698 - Methods and systems for diagnosing faults for rotors of electric motors (2013-07-30),
6. 8487575 - Electric motor stator winding temperature estimation (2013-07-16),
7. 8482237 - Motor temperature estimation based on thermal model (2013-07-09),
8. 8421391 - Electric motor stator winding temperature estimation systems and methods (2013-04-16),
9. 8354817 - Methods and systems for diagnosing stator windings in an electric motor (2013-01-15),
10. 8253365 - Methods and systems for performing fault diagnostics for rotors of electric motors (2012-08-28),
11. 8185342 - Estimating rotor angular position and velocity and verifying accuracy of position sensor outputs (2012-05-22),
12. 8054084 - Methods and systems for diagnosing stator windings in an electric motor (2011-11-08),

Title: Chia-Chou Yeh: Innovator in Electric Machine Control

Introduction

Chia-Chou Yeh is a prominent inventor based in Gardena, CA (US). He has made significant contributions to the field of electric machine control, holding a total of 12 patents. His innovative work focuses on enhancing the efficiency and performance of electric machines and motors.

Latest Patents

Among his latest patents is a method and apparatus for controlling an electric machine. This invention describes an inverter that is electrically operatively connected to an electric machine and communicates with a controller. The inverter is connected to a high-voltage DC power bus. The method for controlling the multi-phase inverter circuit includes monitoring the rotational speed of the electric machine during operation in an over-modulation mode. The inverter is commanded to operate in a linear modulation mode when the rotational speed falls within a range associated with objectionable audible noise generated by the electric machine. Another notable patent involves a method and apparatus for controlling an electric motor employed to power a fluidic pump. This electric motor is fluidly connected to a hydraulic circuit, and its operation includes determining a heat transfer coefficient based on the temperature of the hydraulic fluid. The temperature of the electric motor is then controlled based on this coefficient.

Career Highlights

Chia-Chou Yeh is currently employed at Gm Global Technology Operations LLC, where he continues to innovate and develop advanced technologies in electric machine control. His work has significantly impacted the efficiency and functionality of electric motors and related systems.

Collaborations

Chia-Chou has collaborated with notable coworkers, including Steven E Schulz and Daniel J Berry, contributing to various projects and advancements in their field.

Conclusion

Chia-Chou Yeh is a distinguished inventor whose work in electric machine control has led to numerous patents and innovations. His contributions continue to shape the future of electric motor technology.

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