Terrain mode switching method, vehicle-mounted system and automobile

The invention discloses a terrain mode switching method, a vehicle-mounted system and an automobile. The terrain mode switching method comprises the following steps: acquiring driving environment data of the automobile; outputting the current actual road surface type of the vehicle according to the driving environment data; the driving terrain mode of the vehicle is switched according to the actual road surface type, the method can automatically switch the driving terrain mode according to the road surface type on which the vehicle runs, and the safety and trafficability of the vehicle are improved. 一种切换地形模式的方法、车载系统及汽车，切换地形模式的方法包括：获取车辆所处的行驶环境数据；根据所述行驶环境数据输出所述车辆当前行驶的实际路面类型；根据所述实际路面类型切换所述车辆的行驶地形模式，上述方法能够根据车辆所行驶的路面类型，自动切换行驶地形模式，提高车辆的安全性和通过性。