Hydraulic control device

A hydraulic control device including, between a first pump and a hydraulic operation unit of a transmission, a check valve and a second pump driven by a motor connected in parallel and configured to supply first oil from the first pump to the hydraulic operation unit through the check valve, or pressurize the first oil that is supplied from the first pump with the second pump and supply the first oil that has been pressurized to the hydraulic operation unit as second oil, the hydraulic control device comprising:

• a hydraulic sensor provided on at least one of an intake side of the second pump where the first oil is taken in and a discharging side of the second pump where the second oil is discharged, and configured to detect a pressure of the oil at a position where the hydraulic sensor is provided;
• a controller configured to control driving of the second pump by controlling the motor on a basis of the pressure of the oil detected by the hydraulic sensor;
• and
• an operation point decision unit configured to set an operation point of the second pump on a basis of a request flow rate corresponding to a request value of a flow rate of the second oil and a request discharging pressure corresponding to a request value of a discharging pressure of the second pump in accordance with a vehicle state of the vehicle including the transmission, wherein:
• the operation point decision unit is configured to perform a feedback control for the request discharging pressure by using the pressure of the oil detected by the hydraulic sensor and set the operation point by using the request discharging pressure after the feedback control and the request flow rate;
• and
• the controller is configured to control the motor on a basis of the operation point.