Lawn mower and control system determining whether ground is lawn

A control system for a lawn mower comprising a body and a motor configured to drive a driving wheel provided to the body, the control system comprising:

• a slip ratio calculating section configured to calculate a slip ratio indicating a magnitude of slip of the driving wheel while the lawn mower travels;
• a friction coefficient calculating section configured to calculate a friction coefficient of a ground on which the lawn mower is traveling;
• a determination section configured to determine whether the ground on which the lawn mower is traveling is a lawn based on lawn determination data indicating a relationship between the slip ratio calculated by the slip ratio calculating section and the friction coefficient calculated by the friction coefficient calculating section;
• and
• a control section configured to control the motor based on a determination result of the determination section, the determination result being by the lawn determination data as to whether the ground on which the lawn mower is traveling is a lawn.