Adjustable energy-absorbing footrest and energy-absorbing method

The invention discloses an adjustable energy-absorbing footrest and an energy-absorbing method. The adjustable energy-absorbing footrest comprises an upper footrest body, a buffer mechanism, a lower footrest body, a damping mechanism, a driving control unit, a corner sensor and a driving unit, a buffer mechanism is arranged between the footrest upper body and the footrest lower body to form a footrest main body; a damping mechanism is arranged below the footrest main body, the damping mechanism is connected with a driving unit, the driving unit is connected with a driving control unit, and the driving control unit is used for controlling the driving unit to act on the damping mechanism; the corner sensor is arranged on the lower surface of the foot rest main body and is connected with the driving control unit. The position of the body on the footrest can be adjusted through the spring unit according to the force applying direction and the placing position of the foot sole and the heel of a driver on the footr