Abstract: An air-conditioning panel semiconductor device and an air-conditioning system including the same are provided. The device includes a controller that integrally operates analog modules and digital modules in the air-conditioning panel semiconductor device, operates a motor in an air-conditioning duct, and operates an LCD (Liquid Crystal Display) to display operation state information of an air conditioner for the vehicle on the screen of an air-conditioning panel. An SPI transmits and receives signals relating to air-conditioning by connecting the controller with an external peripheral device. A LIN communication module electrically connected with a main controller to operate the air conditioner. The controller supplies power for the modules in the air-conditioning panel semiconductor device at a substantially uniform voltage by operating a voltage regulator.

Abstract: A fail-safe system for a brake of a hybrid electric vehicle and a method of its use. The system includes: a connection tube for providing fluid communication between an intake system and a brake booster, a vacuum pressure supply element for supplying a negative pressure to the brake booster through the connection tube, a first valve for interrupting the fluid communication between the intake system and the brake booster, and a control unit for determining a brake fail condition. If the brake fail condition is determined, the control unit controls the first valve to interrupt the fluid communication, and controls the vacuum pressure supply element to supply the negative pressure to the brake booster.

Abstract: In multi-path regions of high wave strength, noise in produced sounds of a vehicle audio system is reduced due to controlling of amplification of radio waves received by an on-glass antenna on the basis of wave strength at a running position of a vehicle and its change rate.

Abstract: In multi-path regions of high wave strength, noise in produced sounds of a vehicle audio system is reduced due to controlling of amplification of radio waves received by an on-glass antenna on the basis of wave strength at a running position of a vehicle and its change rate.

Abstract: A vehicular glass antenna wherein the antenna is formed of transparent material and is mounted at a front windshield glass where receptive performance of broadcasting signals is best without obstructing a driver's view.

Abstract: A vehicular glass antenna wherein the antenna is formed of transparent material and is mounted at a front windshield glass where receptive performance of broadcasting signals is best without obstructing a driver's view.