Inventor

WELCHKO BRIAN A

US98 patents

⚠️ This page may combine multiple inventors who share the name “WELCHKO BRIAN A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

WELCHKO BRIAN A

GM GLOBAL TECH OPERATIONS INC

Power grid load management for plug-in vehicles

Discontinuous pulse width modulation for double-ended inverter system

Double ended inverter system with a cross-linked ultracapacitor network

Double-ended inverter system with isolated neutral topology

Series-coupled two-motor drive using double-ended inverter system

System for using a multi-phase motor with a double-ended inverter system

Efficient operating point for double-ended inverter system

Protection for permanent magnet motor control circuits

Double ended inverter system with an impedance source inverter subsystem

DC bus discharge in an electric motor system

Electric motor drive systems, motor vehicles, and methods of phase current regulation

Phase current sampling and regulating apparatus and methods, and electric motor drive systems

Method and system for operating an electric motor coupled to multiple power supplies

Torque estimator for IPM motors

Method and system for converting DC power to AC power

Voltage link control of a DC-AC boost converter system

Method and system for pulse position scheduling in electric drives

Method and system for controlling pulse width modulation in a power inverter in electric drives

Method and system for resolver alignment in electric motor system

Method and system for controlling a power inverter in electric drives

Method and system for torque control in permanent magnet machines

Hybrid motor boost system and methods

Method and apparatus to reduce PWM voltage distortion in electric drives

Dead-time compensation method for electric drives

Method and system for operating a motor to reduce noise in an electric vehicle

Inverter module with thermally separated semiconductor devices

Redundant DC bus discharge for an electric motor system

WELCHKO BRIAN A

Electrical system using phase-shifted carrier signals and related operating methods

Methods, systems and apparatus for controlling a multi-phase inverter

Systems and methods for monitoring current in an electric motor

Systems and methods for monitoring current in an electric motor

Electrical system for pulse-width modulated control of a power inverter using phase-shifted carrier signals and related operating methods

Method and system for monitoring vehicle electrical systems

Method and system for controlling power inverters in electric drives of vehicles with two-mode transmissions

GM GLOBAL TECH OPERATIONS LLC

Method and apparatus for controlling a DC/DC power converter

Electric power system for controlling an electric machine

Control of switching frequency in electric machine assembly

Electric drive assembly with dynamic control of pulse width modulation switching

Detection of stuck in range sensor and method

Method and apparatus to control an inverter

WOODY GEORGE R

Power grid load management for plug-in vehicles

PUDAR NIKOLA J

Remote power usage management for plug-in vehicles

GALLEGOS-LOPEZ GABRIEL

Temperature compensation for improved field weakening accuracy

YEH CHIA-CHOU

Estimating rotor angular position and velocity and verifying accuracy of position sensor outputs

SCHULZ STEVEN E

Method and system for controlling a power inverter in electric drives of vehicles with two-mode transmissions

SON YO CHAN

Method and system for initiating operation of an electric motor

SMITH GREGORY S

Double ended inverter system for a vehicle having two energy sources that exhibit different operating characteristics

JOHN GEORGE

Charging energy sources with a rectifier using double-ended inverter system

NAGASHIMA JAMES M

Double-ended inverter drive system for a fuel cell vehicle and related operating method

ANWAR MOHAMMAD N

Prediction strategy for thermal management and protection of power electronic hardware