Hyundai Motor Company

Kia Motors Corporation

Myunghwa Ind. Co., Ltd.

Amotech Co., Ltd.

Hyeong Geun Song

Yeon Ho Kim

Byung Soo Kim

Yun Seok Kim

Jae Shin Yi

Byoung Hoon Choi

Jae Woong Lee

Dong Soo Shim

Geun Oh Dong

A method and system of controlling driving of a brushless DC electric motor (BLDC) of an electric water pump are provided. The method includes estimating an initial position of a rotor using a magnitude of a current detected in a three-phase coil wound on a stator and converting a current magnitude that reflects a rotational angle of the rotor with respect to the initial position into two direct currents based on the three-phase current. The converted direct currents are output and a rotational angle, a speed, a flux and a torque of the rotor are acquired based on values of the three-phase current, a voltage generated according to flow of the three-phase current, a predetermined coil resistance, and an inductance input. A speed of the motor is then adjusted based on the acquired rotational angle, speed, flux, and torque of the rotor.

Brushless direct current electric motor driving control method and system of electrical water pump

An electric water pump, which can not only ensure more reliable waterproof and cooling performance, provides enhanced durability and operational reliability, and is able to reduce the number of parts and has a more compact structure, compared to the conventional technique.

Electric water pump

Growing community of inventors

Gyeonggi-do, South Korea

Hyeong Geun Song