Title:
HYDRAULIC SUPPLY DEVICE AND VEHICLE WITH THE SAME
Document Type and Number:
Japanese Patent JP2021011929
Kind Code:
A
Abstract:
To provide a hydraulic supply device which can predict opening failure of a check valve more accurately to deal with the opening failure more quickly.SOLUTION: A hydraulic supply device includes: a mechanical oil pump 1 which is driven by a driving source of a vehicle; an electric oil pump 2 which is driven by a motor; a hydraulic circuit 100 which is supplied with oil discharged from these pumps; a first valve (a check valve) 3B which prevents the oil supplied from the mechanical oil pump from flowing into a discharge port of the electric oil pump; a reverse rotation detection part 63 which detects reverse rotation of the electric oil pump; and a failure determination part 65 which outputs an operation command for normal rotation to the electric oil pump to determine whether or not the first valve is in an opening failure state from reaction of the electric oil pump to the operation command if the reverse rotation of the electric oil pump is detected when the electric oil pump is not operated and the mechanical oil pump is operated.SELECTED DRAWING: Figure 1
More Like This:
Inventors:
MATSUI JUNKI
KABE TOMOAKI
TASAKA SO
KABE TOMOAKI
TASAKA SO
Application Number:
JP2019127190A
Publication Date:
February 04, 2021
Filing Date:
July 08, 2019
Export Citation:
Assignee:
JATCO LTD
NISSAN MOTOR
NISSAN MOTOR
International Classes:
F16H61/12; F15B20/00
Attorney, Agent or Firm:
Yu Sanada