Hyundai Motor Company

Kia Motors Corporation

Jaeshin Yi

Yeonho Kim

Jong Hyun Kim

Haksung Lee

Jang Mi Lee

Youngchul Kim

Sanghyun Jeong

Seung Ki Kong

Sanglok Song

YoungChul Kim

Sang Lok Song

Gwang Seob Shin

Seunghyun Yang

Jong Ho Lee

Baekyu Kim

Ki Nam Kim

Kyungha Kim

June Ho Lee

Seung Hyun Yang

Wansoo Kim

Gyeongcheol Kim

Jangmi Lee

Jonghyun Kim

Talchol Kim

Heera Lee

Seungjae Kang

SanLok Song

Gwangseob Shin

Seungki Kong

A system for estimating a charging time of a vehicle battery includes: a measuring device configured to measure a temperature and a voltage of the battery; an electrical behavior predictor configured to predict, when a charging current according to the measured temperature and voltage of the battery is applied to the battery, at least one of a terminal voltage of the battery after an amount of unit time has changed, a state of charge (SOC), or an amount of heat generated; a thermal behavior predictor configured to predict, when the charging current is applied to the battery, the temperature of the battery after the amount of unit time has changed over time of the battery and coolant using the amount of heat generated predicted by the electrical behavior predictor; and a controller configured to determine an estimated charging time of the vehicle based on at least one of the predicted terminal voltage, the SOC, the amount of heat generated, or the temperature of the battery after the amount of unit time has changed over time of the battery and the coolant.

Vehicle and method of controlling the same

A control apparatus of a hybrid vehicle having an electric oil pump includes an engine clutch selectively engaging an engine and a drive motor; an automatic transmission changing a power generated from the engine by engagement and releasing of a friction element into a required torque depending on a speed; a hydraulic pressure sensor sensing an oil pressure supplied to the engine clutch; a temperature sensor sensing an oil temperature discharged from the electric oil pump; a hybrid control unit (HCU) controlling the electric oil pump to selectively engage the engine clutch depending on a driving state; and a transmission control unit (TCU) controlling the electric oil pump to supply transmission control pressure to the friction element. The electric oil pump includes an oil motor and a pump to supply the operating hydraulic pressure to the engine clutch and the friction element.

Apparatus for controlling hybrid vehicle having engine oil pump and method thereof

An oil pump system of a hybrid vehicle may include an electric oil pump which supplies operating hydraulic pressure to the transmission based on a speed command; a data detector which detects data for controlling the electric oil pump; and a controller which sets a driving mode of the electric oil pump based on the data detected by the data detector, determines a basic flow rate of the set driving mode, determines a final flow rate by compensating for the basic flow rate, and applies the speed command to the electric oil pump, in which the operating hydraulic pressure is supplied to the transmission only by the electric oil pump, and the speed command is determined based on target hydraulic pressure, an oil temperature, and the final flow rate.

Oil pump system of hybrid vehicle and method for controlling the same

An oil pump control apparatus of a hybrid vehicle is provided that controls an oil pump according to a demand of an output torque and oil temperature. In particular, hydraulic line pressure is controlled by operating an oil pump at maximum power if a starting demand for a hybrid vehicle is detected. Viscosity is calculated as well to correspond to an oil temperature in an engine stop mode and a rotation speed of the oil pump is controlled at a low power. Additionally, viscosity is also calculated according to a variation of a line pressure in a driving mode and the rotation speed of the electric oil pump is controlled in either a low power, a middle power, and a high power state as well.

Oil pump controlling system of hybrid vehicle and method thereof

A system and method for diagnosing and controlling an unusual hydraulic state of an electric variable transmission of a hybrid vehicle achieving multi modes including a first mode and a second mode, the method may include determining whether the first mode is converted into the second mode, determining whether a hydraulic pressure is generated in a clutch which is engaged and the generated hydraulic pressure is higher than a predetermined hydraulic pressure when the first mode is converted into the second mode, and determining that the hybrid vehicle is in an unusual condition if the hydraulic pressure is not generated in the clutch or the generated hydraulic pressure is higher than the predetermined hydraulic pressure.

Method for diagnosing and controlling an unusual hydraulic state of hybrid vehicle transmission

A hydraulic control system of an automatic transmission for a hybrid vehicle provides for simplifying structure of a valve body and improving responsiveness as a consequence of directly controlling hydraulic pressure supplied to friction elements. The hydraulic control system may operate first and second clutches and first and second brakes selectively according to each driving mode, and may include: a first proportional control solenoid valve for selectively supplying forward pressure and reverse pressure supplied from a manual valve to the first clutch; a second proportional control solenoid valve for selectively supplying line pressure supplied from a primary regulator valve to the second clutch; a third proportional control solenoid valve for selectively supplying the line pressure supplied from the primary regulator valve to the first brake; and a fourth proportional control solenoid valve for selectively supplying the forward pressure supplied from the manual valve to the second brake.

Hydraulic control system of automatic transmission for hybrid vehicle

The present invention relates to a cooling system for cooling a driving motor of a hybrid vehicle and a method for controlling the same which supplies suitable cooling flow according to temperature and temperature change rate of the driving motor. An exemplary embodiment may include: an electric oil pump to generate hydraulic pressure for cooling the driving motor; a switching valve to selectively transmit the hydraulic pressure to the driving motor; a solenoid valve to selectively supply control pressure to the switching valve so as to switch hydraulic lines in the switching valve; and a control portion controlling operations of the electric oil pump and the switching valve, wherein the control portion operates the electric oil pump by various operation amounts or stops the electric oil pump according to temperature of the driving motor and temperature change rate of the driving motor, and turns on or off the solenoid valve.

Cooling system for cooling driving motor of hybrid vehicle and method for controlling the same

The present invention provides a hydraulic control system of a power train for a hybrid vehicle that allows the power train of a hybrid vehicle to implement all of two or more EV modes, two or more power split modes, and at least three or more fixed-stage modes, with a relatively simple configuration, and achieves satisfactory power performance of the power train and fuel efficiency and reduce the cost of the valve body, remove possibility of malfunction, and implements a limp home function when a controller is broken.

Hydraulic control system of power train for hybrid vehicle

A method for determining an operating state of elements of a transmission may include acquiring rotational speeds of both members constituting the elements, determining whether the rotational speeds of the members may be the same, and determining that the elements may be directly connected when the rotational speeds of the members may be the same, and that the elements may be disconnected or slip when the rotational speeds of the members may be different.

Method for determining operating state of element of transmission

The transmissions for a hybrid vehicle according to the present invention provide multiple electric vehicle modes, multiple power split modes, and multiple fixed-gear ratio modes, thereby increasing driving performance and fuel efficiency.

Transmission for hybrid vehicle

Growing community of inventors

Suwon-si, South Korea

Jaeshin Yi