Hydraulic control device and vehicle control device
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsShuji Moriyama, Takuro Morino, Yoshio Ito
Life of this patent
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Abstract
A hydraulic control device includes an electric pump configured to supply oil to a belt-type continuously variable transmission mechanism of a power transmission device through a hydraulic path based on driving of a motor, and an accumulator configured to accumulate oil inside by using the oil supplied by the electric pump and supplies the oil to a control system by discharging the accumulated oil through the hydraulic path. According to such a configuration, an increase in the sizes of the electric pump and the accumulator used for hydraulic control at the time of executing an idling stop function can be suppressed.
Claims13
A hydraulic control device that controls a hydraulic pressure of oil supplied for operating a power transmission device including a belt-type continuously variable transmission mechanism and a clutch, the hydraulic control device comprising:
- an electric pump configured to supply oil to the belt-type continuously variable transmission mechanism from among the belt-type continuously variable transmission mechanism and the clutch of the power transmission device through a hydraulic path based on motor driving;
- and
- an accumulator configured to accumulate oil inside by using the oil supplied by the electric pump, and supply the oil to the clutch from among the belt-type continuously variable transmission mechanism and the clutch of the power transmission device by discharging the accumulated oil through the hydraulic path.
Dependencies are inferred from the claim text.