An apparatus and a method for controlling a transmission of a vehicle may include a determining device configured to determine whether to perform a front-vehicle-based deceleration following control based on information on the vehicle and information on the front vehicle when coasting of the vehicle is started, a calculating device configured to determine a target speed of the vehicle and a target distance based on a position, a speed, and a moving distance of the front vehicle, when the front-vehicle-based deceleration following control is determined to be performed, a gearshifting stage deciding device configured to decide a final gearshifting stage of the transmission based on the determined target speed and the target distance by configuring a deceleration profile for each gearshifting stage of the transmission, and a controller to control the transmission based on the final gearshifting stage.

An apparatus and a method for controlling a transmission of a vehicle may include a determining device configured to determine whether to perform a front-vehicle-based deceleration following control based on information on the vehicle and information on the front vehicle when coasting of the vehicle is started, a calculating device configured to determine a target speed of the vehicle and a target distance based on a position, a speed, and a moving distance of the front vehicle, when the front-vehicle-based deceleration following control is determined to be performed, a gearshifting stage deciding device configured to decide a final gearshifting stage of the transmission based on the determined target speed and the target distance by configuring a deceleration profile for each gearshifting stage of the transmission, and a controller to control the transmission based on the final gearshifting stage.

An information processing method includes receiving shift requests to control a shift range of a vehicle from a plurality of application software products configured to implement driver assistance functions of the vehicle, arbitrating the shift requests by using, as a condition, whether each of the received shift requests is a request in a traveling range or a request in a parking range, when the traveling range is the shift range in which a driving wheel of the vehicle is rotatable and the parking range is the shift range in which the driving wheel is not rotatable, and generating an instruction value for an action request to drive an actuator based on a result of arbitration.

An information processing method includes receiving shift requests to control a shift range of a vehicle from a plurality of application software products configured to implement driver assistance functions of the vehicle, arbitrating the shift requests by using, as a condition, whether each of the received shift requests is a request in a traveling range or a request in a parking range, when the traveling range is the shift range in which a driving wheel of the vehicle is rotatable and the parking range is the shift range in which the driving wheel is not rotatable, and generating an instruction value for an action request to drive an actuator based on a result of arbitration.