Self-propelled construction machine for working the ground

A self-propelled construction machine for working the ground, comprising:

• a machine frame supported by wheels or crawler tracks resting on the ground;
• a roller housing arranged on the machine frame, within which a rotatable milling/mixing roller for working the ground is provided, wherein a milling/mixing chamber of the roller housing is at least partially closable by a front roller flap facing in a main direction of travel and a rear roller flap facing in an opposite direction to the main direction of travel;
• a roller flap adjusting device configured to adjust a position of the front roller flap and the rear roller flap;
• a drive device configured to drive the wheels or crawler tracks;
• a milling/mixing roller adjusting device configured to adjust a height of the milling/mixing roller relative to the ground and further relative to the machine frame;
• a controller configured in a first driving mode to generate control signals to the drive device wherein the wheels or crawler tracks are driven such that the construction machine travels in a first direction of travel at a predetermined first speed;
• the controller configured in a second driving mode to generate control signals to the drive device wherein the wheels or crawler tracks are driven such that the construction machine travels at a predetermined second speed in a second direction of travel which is opposite to the first direction of travel, the first direction of travel being a main direction of travel;
• the controller is configured in a transport mode to control the milling/mixing roller adjusting device such that the milling/mixing roller is raised into an upper position in which the milling/mixing roller does not engage with the ground;
• the controller is configured in a working mode to control the milling/mixing roller adjusting device such that the milling/mixing roller is lowered into a bottom position in which the milling/mixing roller engages with the ground;
• wherein the controller is configured for automatic reversal of the direction of travel in such a way that, after receiving a travel direction reversal control signal while in the working mode, respective control signals are generated such that
• the drive device reduces the predetermined first speed at which the construction machine travels in the first direction of travel until the construction machine is stationary, and, after the construction machine is stationary, drives the wheels or crawler tracks in the opposite direction, the drive device increasing the speed in the second direction of travel up to the predetermined second speed, and
• the roller flap adjusting device adjusts the front and rear roller flap before the direction is reversed such that the front roller flap is in a raised position and the rear roller flap rests in a floating position on the ground, and after the direction has been reversed, the rear roller flap is in a raised position, and the front roller flap rests in a floating position on the ground.