Fluid pressure control device

A fluid pressure control device comprising a plurality of control valves and a control unit configured to control the control valves,

• wherein any one of the plurality of control valves has at least two functions among the following (1) to (3) functions:
• (1) a function of switching a state of a two-way clutch, the two-way clutch being switchable between a reverse rotation prevention state in which forward rotation of a rotor is allowed and reverse rotation is prevented and a fixed state in which the rotor is fixed;
• (2) a function of switching a state of a parking lock mechanism;
• and
• (3) a function of switching a supply of hydraulic pressure to a predetermined clutch that is put into an engaged state when a gear stage selected when driving of a vehicle starts is set;
• the fluid pressure control device controlling hydraulic pressure of a transmission and comprising
• a two-way clutch piston that is configured to switch a state of the two-way clutch,
• wherein the transmission includes a rotor and a detection unit configured to detect a state of the two-way clutch, and
• when an instruction to put the two-way clutch into the fixed state is issued and the detection unit confirms that the two-way clutch is not in the fixed state, the control unit causes the control valve to supply fluid pressure at which the two-way clutch is put into the fixed state
• wherein the control valve switches supply of fluid pressure to the predetermined clutch,
• when an instruction to put the two-way clutch into the fixed state has not been issued or when the detection unit confirms that the two-way clutch is in the fixed state, the control unit checks whether blocking of the supply of fluid pressure to the predetermined clutch has been requested, and
• when blocking of the supply of fluid pressure to the predetermined clutch has been requested, the control unit causes the control valve to block supply of fluid pressure to the predetermined clutch.