Hyundai Motor Company

Kia Motors Corporation

Kia Corporation

Dong-a University Research Foundation for Industry-academy Cooperation

Tae Hee Jung

Soung Han Noh

Byunghoon Yang

Hyun Min Park

Sang Joon Kim

Jeong Soo Eo

Mu Shin Kwak

Do Hoon Kim

Young Sik Kim

Jae Sung Bang

Jung Hwi Kim

Tae Young Chung

Myoung Seok Lee

Chae Duck Chon

Jung Hwan Na

Jeong Hye Choi

Jae Kyu Hyun

Youngkwan Ko

Jae Hyeong Seo

Deuk Hoon Koh

Moo Yeon Lee

A charging system for an electric vehicle that receives electric power from external charging equipment to charge a battery includes an inlet including a plurality of ports. The inlet is connectable to the external charging equipment. A charging management part includes a control pilot (CP) terminal for receiving a charging signal indicating information related to a charging power source of the external charging equipment through the inlet. The CP terminal includes a CP plus terminal connected to a CP port among the plurality of ports of the inlet. The CP plus terminal is configured to receive the charging signal. A CP minus terminal is directly connected to a ground port among the plurality of ports of the inlet. The CP minus terminal is configured to receive a ground potential of the external charging equipment.

Charging system for electric vehicle with reduced noise during charging

A charging control device of an electric vehicle and a method thereof may include requesting a charging required current from a charger in a state in which power line communication (PLC) with the charger is established, detecting a round trip time required to receive a response to the request, and adjusting a switching period of a multi-inverter based on the round trip time such that the PLC with the charger is prevented from being interrupted in a process of charging a battery of the electric vehicle.

Charging control device for electric vehicle and method thereof

A multi-input charging system and a multi-input charging method using a motor driving system can promptly compulsorily discharge a high charging voltage formed in a neutral point capacitor forming a neutral point voltage in a charging process and formed in a DC capacitor between an inverter and a battery.

Multi-input charging system and method using motor driving system

An apparatus for reducing vibrations of a two-cylinder engine for a hybrid electric vehicle includes a reference signal generator for generating a first reference signal and a first reference phase, a speed calculator for calculating a speed of the motor based on the position of the motor, a vibration extractor for extracting a first vibration signal based on the speed of the motor, a variable filter, a filter coefficient updater, a phase calculator, a phase shift compensator, a synchronization signal generator for generating a first synchronization signal synchronized with the first vibration signal based on a first reference phase transferred from the reference signal generator, the second phase difference transferred from the phase calculator and the first compensation value transferred from the phase shift compensator, an inverse phase signal generator, and a torque generator for generating a final command torque based on the first inverse phase signal.

Apparatus and method of reducing vibrations of hybrid electric vehicle

The present disclosure relates to an apparatus for extracting vibration of a hybrid vehicle, and more particularly, to an apparatus and a method of extracting vibration of a hybrid vehicle by varying a target vibration frequency. An apparatus for extracting vibration of a hybrid electric vehicle includes: an engine and a driving motor, which are power sources; a starter motor/generator connected to the engine; and a control unit configured to measure a motor speed of the starter motor/generator, to generate a speed variation quantity based on the motor speed of the starter motor/generator, to calculate a vibration frequency of the engine when the speed variation quantity exceeds a reference value, to set a filter band based on the vibration frequency of the engine, and to extract, with the filter band, a vibration of the engine.

Apparatus and method of extracting vibration of hybrid electric vehicle

A limp-home control method and a system for hybrid vehicles which can minimize vehicle vibration (jerk) and improve operability by driving an engine with counter electromotive force and locking up an engine clutch with a difference between an engine speed and a motor speed minimized when a high voltage to an inverter is interrupted due to a failure of a high voltage system of the hybrid vehicle.

Limp-home control method and system for hybrid vehicle

A DCT shifting control method of a vehicle includes: a temporary engaging step that engages an N-3 stage gear having a gear ratio larger than an N stage gear that is a currently engaged gear; a first torque switching step that starts to slip a first clutch engaged with the N-3 stage gear and disengages a second clutch engaged with the N stage gear that is the currently engaged gear; a synchronization speed adjusting step that synchronizes a speed of a power source of a vehicle with a desired input shaft speed by controlling the power source of the vehicle, disengages the N stage gear, and engages the N-2 stage gear that is the desired gear, with the slip of the first clutch maintained; and a second torque switching step that finishes shifting by disengaging the first clutch and engaging the second clutch.

DCT shifting control method for vehicle

A method for enforced discharge of a hybrid vehicle is aimed at discharging a voltage formed in a high-voltage system of a hybrid vehicle to safely remove risk factors due to high voltage when enforced discharge is requested. The method includes determining whether enforced discharge is requested, speed-controlling a motor connected to an engine so as to transmit power to the engine to reduce speed of the motor to zero revolutions per minute, stopping the engine connected to the speed-controlled motor when the enforced discharge is requested, and performing enforced discharge control for enforced-discharging a voltage of a high-voltage system when the engine is stopped.

Method for enforced discharge of a hybrid vehicle

A system for cooling a vehicle including a power conversion component, a motor, a radiator, an electronic water pump, and a cooling unit cooling the power conversion component includes: an air conditioning unit configured to interlock with the cooling unit to perform air conditioning of the vehicle; a temperature sensor configured to sense a temperature of air in the air conditioning unit; a cooling water temperature sensor configured to sense a temperature of cooling water flowing in the cooling unit; and a cooling control controller configured to calculate a targeted air flow rate and a targeted cooling water flow rate to control the cooling of the cooling unit.

Growing community of inventors

Seongnam-si, South Korea

Tae Hee Jung