公开(公告)号：US20160153549A1

公开(公告)日：2016-06-02

申请号：US14952853

申请日：2015-11-25

Applicant: DENSO CORPORATION

Inventor： Fuminori SUZUKI

IPC: F16H61/02 ,  F16H61/32 ,  F16H61/00

CPC classification number: F16H61/0267 ,  F16H61/0021 ,  F16H61/32 ,  F16H2061/326

Abstract: A pressure regulating passage includes a pressure regulating valve and a check valve. The pressure regulating valve regulates a hydraulic pressure supplied to a friction engagement element to be a predetermined pressure lower than an engagement pressure. The check valve prevents reverse flow of hydraulic oil supplied to the friction engagement element. An operative position of a manual valve is switched so as to switched between a passage that supplies hydraulic pressure to the hydraulic pressure supply passage while bypassing the pressure regulating passage and a passage that supplies hydraulic pressure to the hydraulic pressure supply passage through the pressure regulating passage. Accordingly, when an automatic transmission is in a D range and a vehicle is stopped, regardless of a line pressure, an N control process is performed to disengage the friction engagement element.

Abstract translation: 压力调节通道包括压力调节阀和止回阀。 压力调节阀将供给到摩擦接合元件的液压调节到低于接合压力的预定压力。 止回阀防止供应到摩擦接合元件的液压油的反向流动。 切换手动阀的操作位置，以便在绕过压力调节通道的同时在通向液压供给通道供应液压的通道和通过压力调节通道向液压供给通道供给液压的通道之间切换 。 因此，当自动变速器处于D档位且车辆停止时，与行压无关，执行N控制处理以使摩擦接合元件脱离。

公开(公告)号：US20160061347A1

公开(公告)日：2016-03-03

申请号：US14818533

申请日：2015-08-05

Applicant: DENSO CORPORATION

Inventor： Fuminori SUZUKI

IPC: F16K37/00 ,  G05D7/06 ,  F16K31/06

CPC classification number: F16K37/0041 ,  F16H61/0251 ,  F16H2061/0258 ,  F16K31/0613 ,  G05D16/2024

Abstract: A TCU controlling a linear solenoid valve includes an inspecting portion which supplies an inspecting electricity to the solenoid; an initial-response time computing portion which computes an initial response time that has elapsed from the inspecting portion commands to generate the inspecting electricity until the spool valve starts moving; a slowdown-determining portion which determines that a motion of the spool valve has become slow when the initial response time is longer than or equal to a determination time; and a PM-removing portion performs a PM-removing operation for removing foreign matters between the valve body and the spool valve only when it is determined that the movement of the spool valve has become slow. By determining whether the movement of the spool valve has become slow based on the initial response time, it can be estimated whether foreign matters exist. When it is estimated that foreign matters exist, the PM-removing operation is performed.

Abstract translation: 控制线性电磁阀的TCU包括向螺线管提供检查电力的检查部分; 初始响应时间计算部分，其计算从检查部分命令经过的初始响应时间，以产生检查电，直到滑阀开始移动; 当所述初始响应时间长于或等于确定时间时，确定所述滑阀的运动已经变慢的减速确定部分; 只有当确定滑阀的运动变得缓慢时，PM去除部分执行用于除去阀体和滑阀之间的异物的PM去除操作。 通过基于初始响应时间确定滑阀的运动是否变得缓慢，可以估计是否有异物存在。 当估计有异物存在时，执行PM去除操作。