Abstract: Disclosed are a hybrid electric vehicle which may minimize fuel efficiency loss by shift intervention, and a method of controlling shift thereof. The method of controlling shift of the hybrid electric vehicle includes predicting torque of an input terminal of a transmission at a shift time, predicting an RPM of a motor at the shift time, predicting a quantity of intervention using the predicted torque of the input terminal of the transmission and the predicted RPM of the motor, determining whether or not intervention using the motor alone at the shift time is feasible based on the predicted quantity of intervention, and executing shift corresponding to a result of the determination.

Abstract: A method of guiding driving with low fuel efficiency using traffic light information includes: acquiring traffic light information on a forward traffic light, determining whether the vehicle is capable of passing through the forward traffic light without stopping based on the traffic light information, a current vehicle speed, and available acceleration and deceleration speeds, and when the vehicle is capable of passing through it without stopping, outputting a guidance speed for enabling the vehicle to pass through the forward traffic light without stopping. In particular, the forward traffic light information includes information on a current signal of the traffic light and information on a remaining time until the current signal is changed to another signal.

Abstract: Disclosed are a hybrid electric vehicle which may minimize fuel efficiency loss by shift intervention, and a method of controlling shift thereof. The method of controlling shift of the hybrid electric vehicle includes predicting torque of an input terminal of a transmission at a shift time, predicting an RPM of a motor at the shift time, predicting a quantity of intervention using the predicted torque of the input terminal of the transmission and the predicted RPM of the motor, determining whether or not intervention using the motor alone at the shift time is feasible based on the predicted quantity of intervention, and executing shift corresponding to a result of the determination.

Abstract: A method of maintain an automotive smart cruise control system is provided. The system is capable of maintaining a vehicle in a stopped state without requiring an electronic braking system. The vehicle is stopped by a controller when conditions for stopping the vehicle are satisfied based on the driving situation of the vehicle, and the vehicle is maintained in the stopped state by setting the speed of the driving motor to zero.

Abstract: A method of maintain an automotive smart cruise control system is provided. The system is capable of maintaining a vehicle in a stopped state without requiring an electronic braking system. The vehicle is stopped by a controller when conditions for stopping the vehicle are satisfied based on the driving situation of the vehicle, and the vehicle is maintained in the stopped state by setting the speed of the driving motor to zero.

Abstract: Disclosed herein are a method capable of controlling an engine clutch by estimating the speed of an electric motor in a situation where the speed of the motor is not measured, and a hybrid vehicle for performing the same. The method of controlling an engine clutch of a parallel-type hybrid vehicle includes determining whether a state of a transmission clutch and a predetermined state condition of an engine clutch are satisfied in a first controller, when an error occurs in motor RPM information sent from a second controller, replacing the motor RPM information with an input RPM of a transmission or an RPM of an engine, based on a result of the determination in the first controller, so as to send the same to a third controller, and controlling the engine clutch using the replaced motor RPM information in the third controller.

Abstract: A method for learning a touch point of an engine clutch for a hybrid electric vehicle includes controlling a speed of an engine to have an idle speed. A fluid pipe of a clutch actuator is refilled with a working fluid by driving a driving motor in an idle control state of the engine, a speed of the driving motor is synchronized with the speed of the engine, and then the engine clutch is engaged. The engine clutch is released after the refill is performed, and the speed of the driving motor is decreased. A working fluid is applied so that the engine clutch is operated in an engagement direction by operating the clutch actuator, and a state change of the driving motor is detected. The touch point of the engine clutch is determined based on the state change of the driving motor.

Abstract: A method for learning a touch point of an engine clutch for a hybrid electric vehicle includes controlling a speed of an engine to have an idle speed. A fluid pipe of a clutch actuator is refilled with a working fluid by driving a driving motor in an idle control state of the engine, a speed of the driving motor is synchronized with the speed of the engine, and then the engine clutch is engaged. The engine clutch is released after the refill is performed, and the speed of the driving motor is decreased. A working fluid is applied so that the engine clutch is operated in an engagement direction by operating the clutch actuator, and a state change of the driving motor is detected. The touch point of the engine clutch is determined based on the state change of the driving motor.

Abstract: A method of cutting a non-metallic material along a curved line, is disclosed. The method includes forming an initial crack on a surface of a non-metallic material such that the initial crack is disposed on a curved line along which the non-metallic material is cut, and irradiating a laser beam along the curved line to apply thermal shock to propagate along the curved line to cut the non-metallic material along the curved line. Therefore, edge portions of the non-metallic material may not be damaged and the non-metallic material may be clearly and quickly cut.

Abstract: A system and method of controlling a fail-safe for a vehicle is provided. The method includes determining, by a controller, that remaining hydraulic pressure exists in the clutch when the clutch is not opened and a target value of oil pressure for opening the clutch is maintained for a predetermined time period. In addition, whether a vehicle is stopped is confirmed in response to determining that remaining hydraulic pressure exists in the engine clutch. The controller is further configured to transmit a signal to shift to the vehicle to a neutral (N) stage to a transmission controller and shift to the vehicle to the N-stage in response to determining that the vehicle is stopped. Then, the engine is driven by the controller in response to determining that the vehicle is shifted to the N-stage.

Abstract: A system and method of controlling a fail-safe for a vehicle is provided. The method includes determining, by a controller, that remaining hydraulic pressure exists in the clutch when the clutch is not opened and a target value of oil pressure for opening the clutch is maintained for a predetermined time period. In addition, whether a vehicle is stopped is confirmed in response to determining that remaining hydraulic pressure exists in the engine clutch. The controller is further configured to transmit a signal to shift to the vehicle to a neutral (N) stage to a transmission controller and shift to the vehicle to the N-stage in response to determining that the vehicle is stopped. Then, the engine is driven by the controller in response to determining that the vehicle is shifted to the N-stage.

Abstract: A method of cutting a tempered glass substrate, which is capable of cut a tempered glass substrate without mechanical breaking process and cooling process , is disclosed. The method of cutting a tempered glass substrate, includes, forming an initial crack at a cut-starting point of the tempered glass substrate; forming a heated line at the tempered glass substrate by irradiating laser beam from a point different from the cut-starting point with the initial crack to the cut-starting point with the initial crack through optical heater; and automatically propagating the intimal crack along the heated line to cut the tempered glass substrate.