Abstract: An air conditioning device for a vehicle includes: a housing having an inside divided into an inflow space, a heat exchange space, and an outflow space, which are straightly arranged, and having a plurality of discharge ports, which communicates with an interior, at the inflow space; a blowing unit disposed at the inflow space of the housing and configured to blow air; a heat exchange unit disposed at the heat exchange space of the housing and configured to adjust a temperature of conditioned air by exchanging heat with air; and an opening-closing door disposed at the outflow space of the housing and configured to open and close the plurality of discharge ports such that conditioned air at an adjusted temperature selectively flows to the plurality of discharge ports. The air conditioning device adjusts the temperature of conditioned air for respective modes and reduces a flow resistance of air.

Abstract: An electric brake booster for an autonomous vehicle is provided. The electric brake booster includes a body part that receives a power cylinder generating braking pressure in an autonomous driving/braking mode and a master cylinder generating braking pressure in a manual driver braking mode. A driving shaft is movable in an axial direction in the power cylinder and coupled to a piston. A first motor is connected to a first side of the driving shaft and provides driving power thereto. A second motor is connected to a second side of the driving shaft and provides driving power thereto in a direction equal to that of the driving power provided from the first motor. A controller determines whether the first or second motor normally operates and simultaneously or separately operates the first and second motors based on a magnitude of the pressure in the power cylinder or whether emergency braking occurs.

Abstract: A method of controlling an electric booster including a reaction disk, a boosting body and a pedal push rod connected to a pedal and configured to come into contact with the reaction disk, the electric booster being subjected to braking control according to a braking map, includes: a first braking control step of controlling and generating a reaction force at normal times in accordance with a pedal effort by compressing and expanding a fluid while moving the pedal push rod; and a second braking control step of controlling and generating the reaction force in accordance with the pedal effort only in a condition in which the reaction disk and the pedal push rod are in contact with each other by detecting a size of an air gap between the reaction disk and the pedal push rod.

Abstract: A method of cooperatively controlling regenerative braking step by step for a vehicle, such as a rear-wheel-drive environmentally-friendly vehicle, performs a braking mode in accordance with a traveling risk degree determined in advance before initiating braking and changes the selectively performed braking mode by re-determining the traveling risk degree during a braking operation. The method includes: a first step of determining in advance the traveling risk degree before initiating braking; a second step of selectively performing any one of braking modes defined based on the traveling risk degree during braking; a third step of re-determining the traveling risk degree after the second step; and a fourth step of changing the selectively performed braking mode based on the traveling risk degree determined in the third step.

Abstract: A system and a method for preventing instability of a vehicle due to regenerative braking of a rear, may include a first controller configured of distributing braking torque of front and rear wheels for a deceleration level according to a basic regenerative braking distribution ratio on a regenerative brake map on the basis of a driver demand braking amount, and configured of previously reducing a rear-wheel regenerative braking torque of the rear wheel to a first reference value or less than the first reference value in an adjustment section between first and second deceleration; and a second controller connected to the first controller and configured of further reducing the rear-wheel regenerative braking torque to transmit it to the first controller, if a wheel slip value is greater than a reference slip value according to vehicle driving information during braking of the vehicle.

Abstract: An electric brake booster is equipped with a pressure balance detecting device, which generates braking force. The electric brake booster includes: a first pressure device, which generates pressure as the driver manipulates the brake pedal; a second pressure device, which generates the same pressure as the first pressure device and generates driving power; a master chamber, which receives resultant force of brake pedal effort and driving power of a motor from a master piston that moves in the second pressure device; and a pressure balance detecting device, which detects whether a predetermined ratio is maintained between the pressure of the first pressure device applied to one side of the pressure balance detecting device and the pressure of the master chamber applied to the other side of the pressure balance detecting device.

Abstract: A system and method for preventing instability of a vehicle due to regenerative braking of a rear wheel are provided, which previously reduce a regenerative braking amount, thus securing vehicle stability and updating a regenerative brake map according to a braking situation, may include a first controller configured of distributing braking torque of front and rear wheels for a deceleration level according to a basic regenerative braking distribution ratio on a regenerative brake map on the basis of a driver demand braking amount, and configured of previously reducing a rear-wheel regenerative braking torque of the rear wheel to a first reference value or less than the first reference value in an adjustment section between first and second deceleration; and a second controller connected to the first controller and configured of further reducing the rear-wheel regenerative braking torque to transmit it to the first controller, if a wheel slip value is greater than a reference slip value according to vehicle dr

Abstract: An electric brake booster for an autonomous vehicle is provided. The electric brake booster includes a body part that receives a power cylinder generating braking pressure in an autonomous driving/braking mode and a master cylinder generating braking pressure in a manual driver braking mode. A driving shaft is movable in an axial direction in the power cylinder and coupled to a piston. A first motor is connected to a first side of the driving shaft and provides driving power thereto. A second motor is connected to a second side of the driving shaft and provides driving power thereto in a direction equal to that of the driving power provided from the first motor. A controller determines whether the first or second motor normally operates and simultaneously or separately operates the first and second motors based on a magnitude of the pressure in the power cylinder or whether emergency braking occurs.

Abstract: A method of coast regenerative brake cooperation control for rear wheels of an environment-friendly vehicle is provided. The method actively adjusts the generation amount of a braking force when distributing the braking force to front and rear wheels in response to reception of coast regeneration generation amount information that changes in real time.

Abstract: A method of cooperatively controlling regenerative braking step by step for a vehicle, such as a rear-wheel-drive environmentally-friendly vehicle, performs a braking mode in accordance with a traveling risk degree determined in advance before initiating braking and changes the selectively performed braking mode by re-determining the traveling risk degree during a braking operation. The method includes: a first step of determining in advance the traveling risk degree before initiating braking; a second step of selectively performing any one of braking modes defined based on the traveling risk degree during braking; a third step of re-determining the traveling risk degree after the second step; and a fourth step of changing the selectively performed braking mode based on the traveling risk degree determined in the third step.

Abstract: An electric brake booster is equipped with a pressure balance detecting device, which generates braking force. The electric brake booster includes: a first pressure device, which generates pressure as the driver manipulates the brake pedal; a second pressure device, which generates the same pressure as the first pressure device and generates driving power; a master chamber, which receives resultant force of brake pedal effort and driving power of a motor from a master piston that moves in the second pressure device; and a pressure balance detecting device, which detects whether a predetermined ratio is maintained between the pressure of the first pressure device applied to one side of the pressure balance detecting device and the pressure of the master chamber applied to the other side of the pressure balance detecting device.