Acceleration estimation device and acceleration estimation method

摘要

PROBLEM TO BE SOLVED: To eliminate the need to install an acceleration sensor for each vehicle. One aspect of the present invention is a vehicle acceleration calculation unit that differentiates the speed of a vehicle to calculate the acceleration in the front-rear direction of the vehicle, and three axes of acceleration measured by a mobile terminal moving in the vehicle. An acceleration component calculation unit that obtains a component of the acceleration of the mobile terminal in the front-rear direction of the vehicle based on the components, a component of the acceleration of the mobile terminal obtained by the acceleration component calculation unit in the front-rear direction of the vehicle, and the vehicle acceleration. Acceleration measured by the mobile terminal using the transmission characteristic calculation unit that calculates the transmission characteristic between the vehicle's front-rear acceleration calculated by the calculation unit and the transmission characteristic calculated by the transmission characteristic calculation unit. It is an acceleration estimation device including a vehicle acceleration estimation unit that estimates at least one of the left-right acceleration of the vehicle and the vertical acceleration of the vehicle based on the three-axis components of the above. [Selection diagram] Fig. 2