Hyundai Motor Company

Kia Motors Corporation

Hak Sung Lee

Jong Hyun Kim

Gyeong Cheol Kim

Sang Hyun Jeong

Seong Hwan Kim

Seung Jae Kang

Sang Lok Song

Tae Ho Kim

Yeon Ho Kim

Jae Shin Yi

Seung Ki Kong

Dae Won Yang

Byoung Hoon Choi

Yoh Han Kim

Sung Hyun Ahn

Jong Ho Lee

Young Dug Kim

Young Chul Kim

Baek Yu Kim

Kyoung Joo Kim

June Ho Lee

Dong Soo Shim

Sang Ha Song

Jin Sook Lee

An electric oil pump system integrated with a heat exchanger capable of reducing installation space and cost may include: an the electric oil pump including a motor and a pumping part operated by power of the motor to suck and send oil under pressurizing to an oil-used part; and a heat exchanger to exchange heat between the pressurized oil sent by the electric oil pump and coolant cooled at a radiator while the coolant and the pressurized oil pass through the heat exchanger. In particular, the heat exchanger is directly coupled to the electric oil pump and the oil-used part, respectively, and integrated with each other.

Electric oil pump system integrated with heat exchanger

An electric oil pump system allows the cooling of an electric oil pump (EOP) and an oil pump controller (OPU) to be performed efficiently in the vehicle equipped with the electric oil pump. An electric oil pump of the system includes a pumping part that is operated by power of a motor to suction and direct pressurized oil. An oil pump controller operates the electric oil pump. A water-cooled cooling apparatus cools the oil pump controller using coolant and an oil-cooled cooling apparatus cools the electric oil pump using oil. The coolant of the water-cooled cooling apparatus and the oil of the oil-cooled cooling apparatus pass through a heat exchanger and as the coolant and oil pass therethrough, heat exchange is achieved.

Electric oil pump system

A limp-home control method for a hybrid vehicle may include: a fault determination step for determining, by a controller, whether a solenoid valve battery short circuit fault occurs in a transmission; a first limp-home step for controlling, by the controller, solenoid valves to implement a limp-home gear stage while maintaining a state where power is suppliable to the solenoid valves involved in shifting gears when it is determined that the solenoid valve battery short circuit fault exists; an engine necessity verification step for verifying, by the controller, whether engagement of an engine clutch is needed; and a second limp-home step for driving, by the controller, a solenoid valve controlling the engine clutch to engage the engine clutch, implementing limp-home driving by engine power when the engagement of the engine clutch is needed.

Limp-home control method for hybrid vehicle

A method for controlling a hydraulic pressure refilling operation for an engine clutch of a vehicle includes determining whether the vehicle travels using power of a driving motor with an engine clutch maintained in a disengaged state, and upon determining that the vehicle travels using power of the driving motor with the engine clutch maintained in the disengaged state, determining whether loss of hydraulic pressure has occurred, and upon determining that loss of hydraulic pressure has occurred, controlling a hydraulic pressure refilling operation such that working fluid in a reservoir is supplied to the actuator with the engine clutch in an engaged state, and controlling the driving motor so that the driving motor outputs a compensated torque by compensating for an effect of a load torque, generated by a non-operating engine, on a torque of the driving motor.

Method for controlling hydraulic pressure refilling operation for engine clutch of hybrid electric vehicle

An apparatus for cooling a motor of a hybrid vehicle includes a support ring that is disposed between a motor casing and a motor and has a shape that encloses the motor. A water jacket is formed in the support ring and circulates cooling water and an oil jacket is formed in a support ring and circulates oil. Further, oil is discharged from the oil jacket is sprayed onto the motor to enable the oil to be used to cool the motor and to enable cooling water to be used to cool the motor. Accordingly, the performance of cooling the motor is enhanced.

Apparatus for cooling motor of hybrid vehicle

An apparatus for controlling an electric oil pump (EOP) includes a controller calculating first revolutions per minute (RPM), second RPM and third RPM, the first RPM being EOP RPM required for control of a brake in a transmission, the second RPM being EOP RPM required for cooling of a plurality of motors, and the third RPM being EOP RPM required for lubrication of the plurality of motors, the controller comparing the second RPM with the third RPM and driving the EOP at an RPM obtained by adding the first RPM to the greater of the second RPM and the third RPM.

Apparatus and method for controlling electric oil pump

A method for controlling a motor includes detecting output signals output from three phases of a hall sensor, determining a failure of the hall sensor depending on the output signals, diagnosing which of the three phases of the hall sensor is out of order based on the output signals if it is determined that the hall sensor detections deviate from a predicted order, and outputting a virtual signal for the phase which is determined as a failure among the three phases of the hall sensor to a motor controller.

Method for controlling a motor

A method for diagnosing abrasion of an electric oil pump rotor includes sensing a driving duty of an oil pump control unit, and determining whether the sensed driving duty of the oil pump control unit is below a set reference value, wherein as a result of the determining, when the driving duty of the oil pump control unit is below the set reference value, it is determined that the electric oil pump rotor is in a worn out state.

Method for diagnosing abrasion of electric oil pump rotor

A system for controlling a hybrid electric vehicle includes a control unit for determining whether or not an Oil Pump Unit (OPU) and an Electric Oil Pressure (EOP) temperature sensor are normally operated; a phase current density comparison unit for comparing the mean density of phase currents acquired after shifting the gears of the vehicle with the density of coil phase currents which flow through a coil at a maximum permissible temperature at which the coil is not burning; and a torque control unit for controlling the value of torque to be applied to a transmission according to a result acquired by the phase current density comparison unit.

Method and system for controlling hybrid electric vehicle

A system and method of controlling an automotive electric oil pump are provided. The method of controlling an oil pump can minimize power consumption of a vehicle and improve the fuel efficiency accordingly by learning the performance of the electric oil pump and operating the electric oil pump based on performance.

Control method for oil pump

A fail-safe device and a fail-safe method for an engine clutch actuator for a hybrid vehicle may facilitate conversion into a hybrid electric vehicle (HEV) mode even upon failure of an engine clutch actuator by diagnosing a failure state of an electric vehicle (EV) mode due to failure of the engine clutch actuator using a pressure sensor mounted on an actuator master cylinder of the engine clutch actuator when a driving mode is converted from the EV mode to the HEV mode, transmitting a diagnostic signal to a hybrid control unit, and allowing hydraulic oil in the actuator master cylinder to be easily supplied into a concentric slave cylinder using a separate emergency actuator when the driving mode is converted from the EV mode to the HEV mode.

Fail-safe device and fail-safe method for engine clutch actuator for hybrid vehicle

A method and system for controlling a fail safe of a transmission for a vehicle are provided. The method includes detecting an oil temperature of the transmission for the vehicle and determining whether an oil pump has been driven for a set time or more based on the detected oil temperature. An output of an engine is then limited when the set time elapses.

System and method for controlling fail safe of transmission for vehicle

A failsafe device for a vehicle is provided that includes a transmission of a vehicle and a controller configured to operate an oil supply unit and an emergency oil supply unit. The oil supply unit supplies oil to the transmission via a first oil channel and produces hydraulic pressure and the emergency oil supply unit supplies oil to the transmission via a second oil channel and produces the hydraulic pressure when an oil supply system fails.

Failsafe device and control method for vehicle

An electric oil pump system and a control method thereof include an electrical oil pump that is derated or the derating of the electrical oil pump is released according to a coil temperature of the electrical oil pump, and a torque of a transmission is control according to whether or not the electrical oil pump is derated.

Electric oil pump system and control method thereof

The present invention provides an apparatus and method for controlling the operation of an electric oil pump for creating a working fluid pressure in a transmission and a clutch for a hybrid vehicle, which can accurately reflect the viscosity characteristics of oil to accurately control the operation of the pump, instead of measuring the temperature of the oil to reflect the state of the oil. In preferred embodiments, the present invention provides an apparatus for controlling the operation of an electric oil pump, the apparatus including: a current detector for detecting a current applied to a motor of an electric oil pump; a rotational speed detector for detecting a rotational speed of the motor; and a controller for calculating a load torque of the motor based on the detection values of the current detector and the rotational speed detector, calculating a target rotational speed based on the detection values, and controlling the operation of the motor based on the target rotational speed.

Growing community of inventors

Gyeonggi-do, South Korea

Hak Sung Lee