Control system, work machine, and control method

A control system configured to control a work machine including a working unit having a plurality of working unit components, and a plurality of actuators configured to drive the respective working unit components, the control system, components and actuators comprising:

• a first hydraulic pump and a second hydraulic pump;
• a passage connecting the first hydraulic pump and the second hydraulic pump with each other;
• an opening/closing device provided in the passage and configured to open and close the passage;
• a control device configured to control the opening/closing device to switch between a split-flow state in which the passage is closed and a connected state in which the passage is open;
• a first actuator, one of the plurality of actuators, to which hydraulic fluid discharged from the first hydraulic pump is supplied in the split-flow state;
• and
• a second actuator, one of the plurality of actuators, to which hydraulic fluid discharged from the second hydraulic pump is supplied in the split-flow state,
• wherein the control device determines if a condition for the split-flow state is satisfied;
• and when in the connected state, the control device controls the opening/closing device to maintain the connected state as long as one of the first actuator and the second actuator is in a driven state.