公开(公告)号：US20150183443A1

公开(公告)日：2015-07-02

申请号：US14410789

申请日：2013-06-25

Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

Inventor： Tsutomu Iwamura ,  Yusuke Akami ,  Noriyuki Utsumi ,  Tomoyuki Lee ,  Yusei Kimura ,  Shunsuke Mori

IPC: B61F5/24 ,  F16F15/03

CPC classification number: B61F5/24 ,  F16F15/02 ,  F16F15/03

Abstract: A damper apparatus (12) as the force generation mechanism mounted between a vehicle body (2) and a bogie (5) includes an attenuation damper (13), an electric damper (14), and a gear apparatus (15). The attenuation damper includes a rod protruding from a cylinder, and generates a damping force by converting motion energy of a forward or backward movement of the rod into heat energy. The electric damper includes a stator, and a movable element linearly movable relative to the stator. The gear apparatus is disposed between the attenuation damper and the electric damper, and can mechanically switch the attenuation damper and the electric damper between a series connection and a parallel connection. The gear apparatus switches a connection state between the attenuation damper and the electric damper according to the condition.

Abstract translation: 作为安装在车体（2）和转向架​​（5）之间的力产生机构的阻尼器装置（12）包括衰减阻尼器（13），电动减振器（14）和齿轮装置（15）。 衰减阻尼器包括从气缸突出的杆，并且通过将棒的向前或向后运动的运动能转换成热能来产生阻尼力。 电动阻尼器包括定子和可相对于定子线性移动的可动元件。 齿轮装置设置在衰减阻尼器和电动阻尼器之间，并且可以在串联连接和并联连接之间机械地切换衰减阻尼器和电动阻尼器。 齿轮装置根据条件切换衰减阻尼器和电动阻尼器之间的连接状态。

公开(公告)号：US10682894B2

公开(公告)日：2020-06-16

申请号：US15562161

申请日：2015-05-29

Applicant: Hitachi Automotive Systems, Ltd.

Inventor： Tsutomu Ito ,  Shunsuke Mori ,  Tomoyuki Lee ,  Tsutomu Iwamura ,  Yuki Yoshida

IPC: B60G17/052 ,  B60G17/048 ,  B60G11/27 ,  B60G17/015

Abstract: A replenishment passage connects a compressor to a tank, and a first check valve is provided in the middle of the replenishment passage. A supply/discharge passage connects the tank to air suspensions. A supply/discharge switching valve is provided in the middle of the supply/discharge passage, and suspension control valves are provided at a location between the supply/discharge switching valve and the air suspensions. A discharge passage connects the supply/discharge switching valve to a suction port of the compressor, and a discharge passage open/close valve is provided in the middle of the discharge passage. When a vehicle height is lowered, air within the air suspensions is guided to the suction port of the compressor through the discharge passage, compressed by the compressor, and supplied into the tank.

公开(公告)号：US08560172B2

公开(公告)日：2013-10-15

申请号：US13751749

申请日：2013-01-28

Applicant: Hitachi Automotive Systems, Ltd.

Inventor： Tomoyuki Lee ,  Noriyuki Utsumi ,  Masaaki Uchiyama

IPC: B60G23/00

CPC classification number: B60G17/0157 ,  B60G2202/42 ,  B60G2400/102 ,  B60G2400/104 ,  B60G2400/106 ,  B60G2400/204 ,  B60G2400/41 ,  B60G2500/20

Abstract: The controller inputs a required thrust force value calculated by a required thrust force calculation unit, to a low frequency filter and a high frequency filter. Output values of the low frequency filter and the high frequency filter are amplitude-limited by a low frequency limiter and a high frequency limiter, respectively. Output values of the low frequency limiter and the high frequency limiter are added, and the added value is output into an inverter as a thrust force instruction value. In this case, a limit value of the low frequency limiter is set to be smaller than a limit value of the high frequency limiter.

Abstract translation: 控制器将由所需推力计算单元计算的所需推力值输入到低频滤波器和高频滤波器。 低频滤波器和高频滤波器的输出值分别受到低频限制器和高频限制器的幅度限制。 添加低频限幅器和高频限幅器的输出值，将相加值作为推力指令值输出到逆变器。 在这种情况下，低频限制器的极限值被设定为小于高频限制器的极限值。