Abstract: An electric pump system includes: a pump configured such that a discharge flow rate is controlled in accordance with an opening degree of a solenoid valve, the operation of the solenoid valve being controlled by energization; an electric motor configured to drive the pump; and a control device configured to control the operations of the solenoid valve of the pump and the electric motor based on the command signal indicating the required discharge flow rate or the required discharge pressure of the pump. The control device is configured to adjust the operations of the solenoid valve and the electric motor when the determination condition, which is for determination of whether a predetermined vibration is generated in the electric pump system or the CVT, is satisfied.

Abstract: An electric pump system includes: a pump configured such that a discharge flow rate is controlled in accordance with an opening degree of a solenoid valve, the operation of the solenoid valve being controlled by energization; an electric motor configured to drive the pump; and a control device configured to control the operations of the solenoid valve of the pump and the electric motor based on the command signal indicating the required discharge flow rate or the required discharge pressure of the pump. The control device is configured to adjust the operations of the solenoid valve and the electric motor when the determination condition, which is for determination of whether a predetermined vibration is generated in the electric pump system or the CVT, is satisfied.

Abstract: A working-fluid supply system includes: a first pump and a second pump driven by an engine; a first switching valve capable of switching a supply target of the second pump to either one of the discharge side and the suction side of the first pump; a first switching control unit configured to perform a switching control of the first switching valve; and a first pressure control unit configured to perform a control such that pressure on the suction side of the first pump becomes a predetermined first pressure when the first switching valve is switched such that the supply target of the second pump becomes the suction side of the first pump.

Abstract: A working fluid supply system is provided with: a first oil pump and a second oil pump driven by an engine; a switching valve configured to cause a discharge passage of the second oil pump to communicate with at least one of a supply passage and a first drain passage; and a controller configured to switch the switching valve. The controller is configured to switch the switching valve by spending a switching time that is set in accordance with a degree of pressure variation predicted to be caused in the supply passage when the switching valve is switched instantaneously.

Abstract: A working fluid supply system is provided with: a first oil pump and a second oil pump driven by an engine; a switching valve configured to cause a discharge passage of the second oil pump to communicate with at least one of a supply passage and a first drain passage; and a controller configured to switch the switching valve. The controller is configured to switch the switching valve by spending a switching time that is set in accordance with a degree of pressure variation predicted to be caused in the supply passage when the switching valve is switched instantaneously.

Abstract: A working-fluid supply system includes: a first pump and a second pump driven by an engine; a first switching valve capable of switching a supply target of the second pump to either one of the discharge side and the suction side of the first pump; a first switching control unit configured to perform a switching control of the first switching valve; and a first pressure control unit configured to perform a control such that pressure on the suction side of the first pump becomes a predetermined first pressure when the first switching valve is switched such that the supply target of the second pump becomes the suction side of the first pump.