Hyundai Motor Company

Kia Motors Corporation

Kia Corporation

Jeong Sik Seo

Tae Hun Jung

Jaeyeon Moon

Young Jun Kim

Hyuck Yong Kwon

A system for controlling a compressor may include an engine controller controlling a fuel injection amount corresponding to an engine load and an opening amount of a throttle by reflecting a required torque required for an air conditioner, an operation information detector for detecting operation information according to driving state of the vehicle, a compressor generating pressure through a piston operation of a cylinder utilizing the power of the engine during operation of the air conditioner, and a controller determining an engine negative pressure of an intake manifold stored in the brake booster at a value, and when the negative pressure of intake manifold is below a first threshold value when the brake is operated, the engine enters a negative pressure recovery mode for predicting an insignificant negative pressure drop condition that falls below a second threshold value which is the A/C cut control condition and reduces the A/C duty.

System and method for controlling compressor of vehicle

An apparatus for controlling a compressor includes: an operation information detector which detects operation information from various sensors according to an operation of a vehicle; a compressor which compresses a refrigerant for operating an air conditioner; and a controller which performs starting acceleration control of momentarily decreasing an operation rate of the compressor, which uses engine power in an acceleration situation of the vehicle, in which the controller stores a first map, in which a starting acceleration entry condition according to a driving pattern and a heat load of the vehicle is defined in a plurality of levels, sets a starting acceleration entry condition having a final level corresponding to the driving pattern according to a starting acceleration entry frequency of a driver for a predetermined unit time within a limited level range of the first map, and adjusts a starting acceleration control frequency of the compressor.

Apparatus and method of controlling compressor of air conditioning device of vehicle

A system for controlling a compressor may include an engine controller that controls a fuel injection amount corresponding to an engine load and an opening amount of a throttle by reflecting a required torque required for an air conditioner (A/C), an operation information detector for detecting operation information according to driving state of the vehicle, a compressor that generates pressure during operation of the A/C, an air conditioner relay which is turned on when the air conditioner operates and is turned off when the A/C is stopped, and a controller which determines an engine negative pressure of an intake manifold, and when the cooling water temperature is lower than the predetermined temperature and the intake manifold pressure is lower than the first threshold value, a cold-start intake manifold negative pressure insufficient event is generated to reduce the A/C duty in accordance with the entry into a negative pressure recovery mode.

System and method for controlling compressor of cold-start vehicle

A method and an apparatus for controlling a compressor are provided. The method includes measuring a vehicle speed, an engine speed, a position value of an accelerator pedal, and an external air temperature and comparing the vehicle speed with a predetermined speed. A basic operation rate of the compressor is then determined based on the engine speed and the position value of the accelerator pedal when the vehicle speed is equal to or less than the predetermined speed. A final operation rate of the compressor is determined based on the external air temperature and the determined basic operation rate and the compressor is operated based on the determined final operation rate.

Method and apparatus for controlling compressor

A compressor control apparatus may include a data detector detecting status data including at least one of vehicle speed, engine speed, accelerator pedal location value, and slope way measurement value; and controller that determines whether engine speed and accelerator pedal location value of the status data satisfy oscillation acceleration entering condition, if the vehicle speed exists in predetermined range and that sets basic operation rate of compressor according to the engine speed and the accelerator pedal location value, if engine speed and accelerator pedal location value of the status data satisfy oscillation acceleration entering condition and that generates final operation rate of the compressor using the basic operation rate, slope way constant according to the slope way measurement value, and air temperature compensation constant according to air temperature and that controls operation of the compressor based on the final operation rate.

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Hwaseong-si, South Korea

Jeong Sik Seo