Hanon Systems

Se Won Min

Sang Jun Yoo

Hong Rae Jung

Chang Hyun Baek

Tae Eun Kim

Young Min Kim

Chul Soon Kim

Jae Min Lee

Seung Ho Lee

Young Chul Kim

In Hyeok Kim

Seo Jun Yoon

Dae Yeop Jeong

Chui Soon Kim

An air conditioner for a vehicle includes an air conditioning case having a first air passageway and a second air passageway partitioned by a separator therein; a PTC heater disposed in each of the first air passageway and the second air passageway to generate heat by electric energy; and a control unit for controlling operation of the PTC heater. The control unit individually controls discharge temperature of the first air passageway and discharge temperature of the second air passageway of the PTC heater, and if target discharge temperature of the first air passageway and target discharge temperature of the second air passageway are different from each other, the control unit calculates and outputs a compensation value for the PTC heater output of at least one of the first air passageway and the second air passageway. The PTC heater therefore has a reduced output when controlling for dual temperatures.

Air conditioner for vehicle and method for controlling the same

The present invention relates to an air conditioner for a vehicle and a control method thereof, which can calculate the range of discharge temperature to the interior of the vehicle, set the upper limit of the discharge temperature, and control the degree of opening of a temp door such that the discharge temperature to the interior of the vehicle gets lower than the upper limit, thereby preventing air of discharge temperature above the upper limit from being discharged to the interior of the vehicle and preventing displeasure or personal injury that may be caused when air of high temperature is discharged.

Air conditioner for vehicle and control method thereof

An air conditioning system for motor vehicles includes a compressor, a condenser, a plurality of air conditioning units connected in parallel with each other with respect to the compressor and the condenser, and a flow rate control unit configured to, when a specific one of the air conditioning units is additionally turned on or is turned off, prevent occurrence of a sudden change in refrigerant amount in the remaining air conditioning units.

Air conditioning system for motor vehicles

An air conditioning system for motor vehicles includes a temperature door configured to adjust an opening degree of a hot air path, a PTC heater configured to heat an air introduced into the hot air path, and a control unit configured to control an opening position of the temperature door with respect to the hot air path and to secure a minimum opening degree of the hot air path, so that a minimum amount of air is blown toward the PTC heater regardless of the opening position of the temperature door. The control unit is configured to actively adjust the minimum opening degree of the hot air path depending on an on/off condition of the PTC heater.

Air conditioning system for motor vehicles and control method thereof

An air conditioning system for motor vehicles includes a blower configured to blow an air into a vehicle room, a PTC heater configured to heat the air blown into the vehicle room, the PTC heater having a heat generation amount adjusted by PWM duty ratio control, a blower air volume change amount measurement unit configured to, when an air volume of the blower is changed, measure a blower air volume change amount per unit time during a predetermined time period from a time point at which the air volume of the blower is changed, and a control unit configured to, when the air volume of the blower is changed, correct a PWM duty ratio of the PTC heater in view of the blower air volume change amount per unit time measured by the blower air volume change amount measurement unit.

An air conditioning system for hybrid vehicles includes: a heater core receiving engine cooling water from an engine and heat an air blown into a vehicle room; an electric water pump pumping the engine cooling water through the heater core when a motor vehicle is switched from an engine drive mode to a motor drive mode; a discharged air temperature sensing unit sensing a discharged air temperature as a temperature of an air discharged into the vehicle room; and a control unit when the motor vehicle is switched from the engine drive mode to the motor drive mode differentially controls a rotational speed of the electric water pump depending on a temperature difference between the discharged air temperature inputted from the discharged air temperature sensing unit and a target discharge temperature calculated in advance based on internal/external temperature conditions and a user set temperature.

Growing community of inventors

Daejeon, South Korea

Se Won Min