Transmission control circuit

A transmission control circuit for controlling a system pressure provided by a pressure pump in a transmission of a working machine, comprising:

• a pressure control valve for setting the provided system pressure to a maximum system pressure,
• an electronic control unit configured to detect load states and operating states of the working machine, the electronic control unit storing transmission input torque limits associated with the load states and state values representing at least one first operating state and at least one second operating state, wherein the first operating state corresponds with the maximum system pressure and the second operating state corresponds with a reduced system pressure compared to the maximum system pressure, and
• a pressure limiting valve being operably activated by the control unit to overrule the pressure control valve in order to variably set the reduced system pressure,
• wherein, while in the second operating state, an activation of the pressure limiting valve is based on a comparison between a detected load state and a transmission input torque limit.