Gear stage choosing apparatus, gear stage choosing method, and simulation apparatus

A simulation apparatus that generates a gradient pattern, the simulation apparatus comprising:

• one or more processors programmed to function as:
• a gradient pattern generation unit configured to generate a gradient, in each of sections into which a target of the gradient pattern is divided by a first distance, where a gradient obtained by increasing or reducing a gradient of the section by a first gradient at an equal probability, sequentially deriving a gradient for each section;
• and
• a vehicle speed pattern generation unit configured to generate a vehicle speed pattern by, in a model including a lead vehicle that runs in accordance with a first vehicle speed pattern, a rearmost vehicle that runs in accordance with a first preceding vehicle following algorithm, and one or more intermediate vehicles that increase or reduce by one for each first period at an equal probability between the lead vehicle and the rearmost vehicle and that runs in accordance with the first preceding vehicle following algorithm, deriving a vehicle speed of the rearmost vehicle.

A simulation apparatus that generates a gradient pattern of a running road for a vehicle and a vehicle speed pattern for simulation, the simulation apparatus comprising:

• one or more processors programmed to function as:
• a gradient pattern generation unit configured to generate a gradient pattern of a running road by, in each of sections into which the running road is divided by a first distance, where a gradient obtained by increasing or reducing a gradient of the section by a first gradient at an equal probability, sequentially deriving a gradient for each section;
• and
• a vehicle speed pattern generation unit configured to generate a vehicle speed pattern by, in a model including a first vehicle that runs in accordance with a first vehicle speed pattern, a second vehicle that runs in accordance with a first preceding vehicle following algorithm, and one or more third vehicles that increase or reduce by one for each first period at an equal probability between the first vehicle and the second vehicle and that runs in accordance with the first preceding vehicle following algorithm, deriving a vehicle speed of the second vehicle.