James E Walters

This inventor holds 20 USPTO granted patents, plus 1 CIPO patent and 5 EPO patents, primarily in Electric Machine Control. Top assignees: Delphi Technologies, Inc., Allison Transmission, Inc.. Active years: 2001-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: James E Walters. Retrieved from https://idiyas.com/inventor/james-e-walters

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 20

% Patents Active = 80.0

CIPO Patents = 1

EPO Patents = 5 (Patent Applications = 5)

Average Co-Inventor Count = 1.8

ph-index = 10

Forward Citations = 238(Granted Patents)

Company Filing History:

18 out of 5,161

Delphi Technologies, Inc.

patents

2 out of 489

Allison Transmission, Inc.

patents

Years Active: 2001-2018

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Areas of Expertise:

Rotor Position Sensor

Electric Motor Fault Detection

Error Correction

Hybrid Vehicle Control

Misfire Detection

Cylinder Pressure Sensor

Clamp Current Regulation

Field Weakening Operation

Induction Machines

Permanent Magnet Machines

Synchronous Machine Control

High-Resolution Sensors

20 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 9897466 - Rotor position sensor signal correction (2018-02-20),

2. 9618582 - System and method of electric motor fault detection (2017-04-11),

3. 9463713 - System and method for error correction in angular position sensors (2016-10-11),

4. 9260036 - System and method for error correction in angular position sensors (2016-02-16),

5. 8120200 - Fast response failure mode control methodology for a hybrid vehicle having an electric machine (2012-02-21),

6. 7530261 - Fourier-based misfire detection strategy (2009-05-12),

7. 7320308 - Method of cylinder pressure sensor data/angle capture for low and high resolution (2008-01-22),

8. 7242163 - System and method for clamp current regulation in field-weakening operation of permanent magnet (PM) machines (2007-07-10),

9. 7026776 - Current limiting strategy (2006-04-11),

10. 6876169 - Method and controller for field weakening operation of AC machines (2005-04-05),

11. 6850033 - System and method for clamp current regulation of induction machines (2005-02-01),

12. 6774592 - Method and system for controlling a permanent magnet machine (2004-08-10),

13. 6741060 - Method and system for controlling a permanent magnet machine during fault conditions (2004-05-25),

14. 6639371 - Method and system for controlling start of a permanent magnet machine (2003-10-28),

15. 6590361 - Method and system for controlling an induction machine (2003-07-08),

Title: Innovator Spotlight: James E. Walters

Introduction

James E. Walters, based in Carmel, IN, is a prominent inventor with an impressive portfolio that includes 20 patents. His work primarily focuses on advancements in motor control systems, showcasing his expertise in electrical engineering and innovation in the automotive sector.

Latest Patents

Among his latest innovations is the “Rotor Position Sensor Signal Correction.” This motor control system leverages a rotor position sensor to detect shaft rotation, providing a solution that optimizes motor functionality by accurately converting rotor position signals into corrected motor control angles. This involves a complex process of signal transformation and filtering to ensure precise motor operation.

Another significant contribution by Walters is the “System and Method of Electric Motor Fault Detection.” This system is designed to detect motor faults by analyzing the motor's response to applied drive signals. By comparing the response signals to expected values, it provides an effective method to anticipate and diagnose potential failures in motor systems, enhancing reliability and performance.

Career Highlights

James has held pivotal roles in prestigious companies, including Delphi Technologies, Inc. and Allison Transmission, Inc. His tenure at these institutions has been marked by his dedication to developing innovative solutions that enhance automotive technology and systems.

Collaborations

Throughout his career, Walters has collaborated with talented individuals such as Fani S. Gunawan and Ronald John Krefta. These partnerships have fostered an environment of creativity and technical advancement, enabling significant contributions to the field of motor technology.

Conclusion

With a solid foundation of patents and a commitment to innovation, James E. Walters continues to shape the future of motor control technologies. His inventions not only improve current systems but also pave the way for future advancements in the industry. As he progresses in his career, Walters remains a vital figure in the landscape of electrical engineering and automotive innovation.

Profile summary based on public USPTO records.