公开(公告)号：US20120245820A1

公开(公告)日：2012-09-27

申请号：US13425866

申请日：2012-03-21

Applicant: Shogo MIYAMOTO

Inventor： Shogo MIYAMOTO

IPC: F02D28/00

CPC classification number: F04B49/20 ,  F04B2201/1201 ,  F04B2203/0209 ,  F16H59/72 ,  F16H61/0031 ,  F16H61/66272 ,  F16H2312/14

Abstract: An electric oil pump for supplying oil to at least a part (a clutch) of a transmission is provided in parallel with a mechanical oil pump which is driven by an engine and supplies oil to each part of the transmission. In advance of an operation request to the electric oil pump, the electric oil pump is rotated at a first operation-preparation rotational speed which is a very low speed so as to replace oils in oil pipes controlled by the electric oil pump. Thereafter, the electric oil pump is rotated at a second operation-preparation rotational speed which is a relatively-high speed, and when an actual rotational speed reaches the second operation-preparation rotational speed, it is determined that operation preparation is completed.

Abstract translation: 与发动机驱动的机械油泵并联设置用于向变速器的至少一部分（离合器）供给油的电动油泵，并向变速器的各部分供给油。 在对电动油泵的操作要求之前，电动油泵以非常低的速度的第一操作准备转速旋转，以代替由电动油泵控制的油管中的油。 此后，电动油泵以相对高速度的第二运转准备转速转动，当实际转速达到第二运转准备转速时，判定为运转准备完成。