Patent ID: 11927505
Assignee: BRIDGESTONE CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B  G | IPC B  G

Claim 6:
7. A non-transitory storage medium storing a program executable by a computer to perform processing to estimate aerodynamic drag information indicating an aerodynamic characteristic acting on a bicycle while being ridden by a cyclist, the processing comprising:
acquiring at least one of a velocity of the bicycle or an acceleration of the bicycle when being pedaled by a cyclist;
acquiring a pedaling power when being pedaled by the cyclist; and
estimating aerodynamic drag information indicating an aerodynamic characteristic acting on the bicycle being ridden by the cyclist, based on a computation result of mechanical analysis according to an equation of motion established for a direction of progress of the bicycle and using the at least one of the velocity of the bicycle or the acceleration of the bicycle and the pedaling power, as obtained from results of the acquiring;
wherein estimating the aerodynamic drag information is based on the equation:

CdA=2/ρV2{(P/V)−Ma−FRR}

wherein M is a total mass of the bicycle when being ridden by the cyclist, a is an acceleration of the bicycle, ρ is a density of air, V is a direction of progress velocity of the bicycle, P is the pedaling power, FRR is a rolling resistance, and CdA is aerodynamic drag information.