Hyundai Motor Company

Kia Motors Corporation

Kia Corporation

Joon Young Jeon

Ho Joong Lee

Young Jin Jang

Hye Seung Kim

Han Shin Youn

Dong Jun Lee

Won Yong Sung

A power conversion system for autonomous driving and a method for controlling the same, includes a first battery and a second battery; an LDC configured to convert the magnitude of a voltage, output the voltage, and charge the first battery with an output of the LDC; an autonomous driving load electrically connected to the LDC and the first battery and configured to be provided with a power voltage from the LDC or the first battery; and an autonomous driving controller electrically connected to the LDC, the first battery, and the second battery and configured to be provided with a power voltage from one of the LDC, the first battery, or the second battery, wherein the LDC is configured to determine the output of the LDC based on control parameters including the load amount of the autonomous driving load and the state of charging of the first battery and the state of charging of the second battery.

Power conversion system for autonomous driving and method for controlling same

A vehicle charger includes a power factor correction converter configured to correct the power factor of alternating current (AC) power is integrated with an input terminal of a DC-DC converter configured to generate a direct-current (DC) voltage having a magnitude required for an energy storage device in the vehicle, thereby reducing the size of the vehicle charger, reducing the number of required elements, and allowing the vehicle charger to have high efficiency; and a method for controlling the same.

Vehicle charger and method for controlling the same

A method for controlling charge or discharge of a battery in a battery system including a DC converter down-converting an input voltage thereof and outputting an output, a battery connected to an output terminal of the DC converter, and an electric load connected to the output terminal of the DC converter and supplied with electric power from at least one of the DC converter and the battery, may include measuring a temperature of the battery, first controlling, by a controller, an output of the DC converter so that a charging current supplied to the battery from the DC converter becomes a preset maximum value, when the temperature of the battery is lower than a first predetermined temperature, and second controlling, by the controller, the output of the DC converter such that a current of the battery is substantially equal to zero, when the temperature of the battery is higher than a second predetermined temperature which is higher than the first predetermined temperature.

System and method for controlling charge and discharge of battery

A system for controlling a low voltage DC-DC converter for a vehicle is provided. The system includes a low voltage DC-DC converter that converts a voltage of a main battery into a low voltage and outputs the same. An electric device is connected to an output terminal of the low voltage DC-DC converter and a first relay is connected to the output terminal of the low voltage DC-DC converter at a first terminal thereof. An auxiliary battery is connected to a second terminal of the first relay and a controller turns off the first relay and operates the low voltage DC-DC converter to output a minimum voltage capable of operating the electric device when the auxiliary battery is charged to a preset reference value or more while the main battery is being charged.

System and method for controlling low voltage DC-DC converter for vehicle

A four wheel drive vehicle includes: main driving wheels and auxiliary driving wheels; a first driving motor that provides power to the main driving wheels; a second driving motor that provides power to the auxiliary driving wheels; a battery that stores electrical energy; an inverter that converts and provides the electrical energy stored in the battery to the first driving motor; and a bidirectional power converter that generates charging electric power for charging the battery by converting power supplied from the outside of the vehicle and converts and provides the electrical energy stored in the battery to the second driving motor.

Growing community of inventors

Seoul, South Korea

Joon Young Jeon