
基本信息:
- 专利标题: WORKING MACHINE
- 专利标题(中):工作机
- 申请号:US14134626 申请日:2013-12-19
- 公开(公告)号:US20140107881A1 公开(公告)日:2014-04-17
- 发明人: Yuta SUGIYAMA , Hideaki YUASA , Kiminori SANO
- 申请人: Sumitomo (S.H.I.) Construction Machinery Co., Ltd. , Sumitomo Heavy Industries, Ltd.
- 申请人地址: JP Tokyo
- 专利权人: Sumitomo Heavy Industries, Ltd.
- 当前专利权人: Sumitomo Heavy Industries, Ltd.
- 当前专利权人地址: JP Tokyo
- 优先权: JP2008-294664 20081118; JP2008-294669 20081118; JP2008-295836 20081119; JP2009-005940 20090114; JP2009-052297 20090305; JP2009-068010 20090319; JP2009-068016 20090319; JP2009-070091 20090323
- 主分类号: B60L15/00
- IPC分类号: B60L15/00 ; B60K11/02
摘要:
Provided is a working machine capable of decreasing a voltage of a DC busbar (DC bus) with a configuration suppressing a degradation in reliability. A hybrid type construction machine as a working machine includes: a DC bus which is connected to a rotation motor via an inverter circuit, a battery which is connected to the DC bus via a step-up/step-down converter and a switch, a controller which drives the inverter circuit and the step-up/step-down converter, a cooling liquid circulating system which includes a pump motor, and an inverter circuit which is connected to the DC bus and driving the pump motor. The controller includes a mode used for decreasing the voltage of the DC bus, and in that mode, the switch enters a disconnection state and the inverter circuit is operated to consume electricity in the pump motor.
摘要(中):
提供一种能够以抑制可靠性劣化的结构来降低DC母线(DC总线)的电压的工作机。 作为工作机械的混合动力式施工机械包括:经由逆变器电路与旋转马达连接的直流母线,经由升压/降压转换器和开关与直流母线连接的电池, 驱动逆变器电路和升压/降压转换器的控制器,包括泵电动机的冷却液循环系统和连接到DC总线并驱动泵电动机的逆变器电路。 控制器包括用于降低DC总线电压的模式,在该模式下,开关进入断开状态,并且逆变器电路被操作以消耗泵电机中的电力。
公开/授权文献:
- US09108516B2 Working machine 公开/授权日:2015-08-18
IPC结构图谱:
B | 作业;运输 |
--B60 | 一般车辆 |
----B60L | 电动车辆的电力装备或动力装置;用于车辆的磁力悬置或悬浮;一般车用电力制动系统 |
------B60L15/00 | 控制电动车辆牵引电动机速度的方法、电路或机构 |