Abstract: An apparatus for controlling shifting of a vehicle and a method therefor are provided, where the apparatus includes a storage storing a power map in which a demand power corresponding to a vehicle speed and an accelerator position sensor (APS) value is recorded and storing an energy consumption map of a power source for each gear stage. The apparatus includes a controller that detects a current demand power based on the power map, generates a power graph representing the detected demand power as the number of revolution and a torque of the power source for each gear stage, and matches the generated power graph with the energy consumption map of the power source to control a shift to a gear stage which consumes minimum energy.

Abstract: An apparatus and method are provided for controlling a powertrain of an autonomous vehicle. The apparatus includes an autonomous driving controller that controls autonomous driving of the vehicle and a transmission controller that determines whether the vehicle satisfies a pulse and glide (P&G) driving condition during the autonomous driving. The transmission controller alternately performs pulse driving and coasting in conjunction with the autonomous driving controller when the vehicle satisfies the P&G driving condition. The transmission controller causes a transmission to remain in a neutral state during the coasting.

Abstract: A shift control method of a transmission including an electric oil pump (EOP) directly connected to a friction clutch for a vehicle may include: when a shift is initiated, setting, by a controller, a predetermined first target RPM for controlling the EOP; determining, by the controller, a target current based on the first target RPM; maintaining, by the controller, the first target RPM until an EOP driving current reaches the target current; when the EOP driving current is greater than or equal to the target current, linearly reducing, by the controller, an RPM of the EOP from a predetermined second target RPM to a third target RPM; and increasing, by the controller, an EOP driving power to increase a friction force of the friction clutch such that a slip of the friction clutch is smaller than a predetermined reference slip.

Abstract: A shift control method of a transmission including an electric oil pump (EOP) directly connected to a friction clutch for a vehicle may include: when a shift is initiated, setting, by a controller, a predetermined first target RPM for controlling the EOP; determining, by the controller, a target current based on the first target RPM; maintaining, by the controller, the first target RPM until an EOP driving current reaches the target current; when the EOP driving current is greater than or equal to the target current, linearly reducing, by the controller, an RPM of the EOP from a predetermined second target RPM to a third target RPM; and increasing, by the controller, an EOP driving power to increase a friction force of the friction clutch such that a slip of the friction clutch is smaller than a predetermined reference slip.

Abstract: The present invention relates to a device configured for predicting a speed of a vehicle, and a method thereof. To predict the speed of the vehicle with high accuracy in a form of time-series data, the present invention may include an input device entering time-series data for a driving profile before a prediction time point into an encoder, a learning device learning a vehicle speed model by use of a low-dimensional representation which is an output of the encoder, a vehicle speed at the prediction time point, and a driving profile at the prediction time point, and a controller predicting a speed of the vehicle based on the vehicle speed model.

Abstract: A hydraulic pressure control method for a transmission includes determining whether a current shift range is among a plurality of shift ranges, setting a dither frequency of a pressure control solenoid valve of a hydraulic circuit for the transmission to a predetermined first frequency when the current shift range is a predetermined first range, and setting the dither frequency of the pressure control solenoid valve to a predetermined second frequency when the current shift range is a shift range other than the first range.

Abstract: A hydraulic control system of an automatic transmission for a vehicle provided with an idle stop and go (ISG) system includes a mechanical hydraulic pump driven by a torque of an engine, the mechanical hydraulic pump pumping a fluid stored in an oil pan, a regulator valve, a manual valve, a linear solenoid valve for controlling the hydraulic pressure supplied from the manual valve through the second hydraulic line and for supplying the controlled hydraulic pressure to a third hydraulic line, a switch valve, and an electric hydraulic pump driven by electric energy for pumping the fluid stored in the oil pan through a fifth hydraulic line and for feeding the pumped fluid to a sixth hydraulic line connected to the fourth hydraulic line.

Abstract: The present disclosure relates to a method for controlling a lock-up clutch of an automatic transmission. The method includes: a detecting step of detecting, by a controller, a current signal applied to a solenoid valve of an engaging element when a gear change operation begins; and a first increasing control step of controlling, by the controller, an amount of current that is applied to a solenoid valve of a lock-up clutch during an initial fill time period when it is determined that the current signal is applied to the solenoid valve of the engaging element. In particular, the solenoid valve of the engaging element is used to form a gear stage, and the controller increases the amount of current to a predetermined level for a predetermined period of time.

Abstract: A hydraulic control system of an automatic transmission for a vehicle provided with an idle stop and go (ISG) system includes a mechanical hydraulic pump driven by a torque of an engine, the mechanical hydraulic pump pumping a fluid stored in an oil pan, a regulator valve, a manual valve, a linear solenoid valve for controlling the hydraulic pressure supplied from the manual valve through the second hydraulic line and for supplying the controlled hydraulic pressure to a third hydraulic line, a switch valve, and an electric hydraulic pump driven by electric energy for pumping the fluid stored in the oil pan through a fifth hydraulic line and for feeding the pumped fluid to a sixth hydraulic line connected to the fourth hydraulic line.

Abstract: The present disclosure relates to a method for controlling a lock-up clutch of an automatic transmission. The method includes: a detecting step of detecting, by a controller, a current signal applied to a solenoid valve of an engaging element when a gear change operation begins; and a first increasing control step of controlling, by the controller, an amount of current that is applied to a solenoid valve of a lock-up clutch during an initial fill time period when it is determined that the current signal is applied to the solenoid valve of the engaging element. In particular, the solenoid valve of the engaging element is used to form a gear stage, and the controller increases the amount of current to a predetermined level for a predetermined period of time.