公开(公告)号：US20140020375A1

公开(公告)日：2014-01-23

申请号：US14110808

申请日：2012-05-24

申请人： Kazuo Fujishima ,  Yusuke Kajita ,  Mitsuo Sonoda ,  Masatoshi Hoshino ,  Akira Nakayama ,  Junji Yamamoto ,  He Bao ,  Seiji Ishida ,  Shiro Yamaoka ,  Takashi Okada

发明人： Kazuo Fujishima ,  Yusuke Kajita ,  Mitsuo Sonoda ,  Masatoshi Hoshino ,  Akira Nakayama ,  Junji Yamamoto ,  He Bao ,  Seiji Ishida ,  Shiro Yamaoka ,  Takashi Okada

IPC分类号： E02F9/20

CPC分类号： E02F9/2025 ,  B60K6/46 ,  B60K17/28 ,  B60W10/06 ,  B60W10/08 ,  B60W20/00 ,  B60W20/11 ,  B60W20/15 ,  B60W20/16 ,  B60W30/1888 ,  B60W2300/17 ,  B60W2710/0644 ,  B60Y2200/412 ,  E02F9/20 ,  E02F9/2075 ,  E02F9/2296 ,  F02D31/001 ,  F02D41/1406 ,  F02D2250/18 ,  F02D2250/36 ,  F02D2250/38 ,  F15B21/14 ,  F15B2211/20515 ,  F15B2211/20523 ,  F15B2211/20546 ,  F15B2211/6316 ,  F15B2211/633 ,  F15B2211/88 ,  Y02T10/6217 ,  Y02T10/6286

摘要： A hydraulic working machine has an assist electric motor connected to an engine and a hydraulic pump. The emissions of air pollutants in the exhaust gas from the engine are minimized regardless of fluctuations in the load torque of the hydraulic pump. A specific revolution speed suitable for reducing the emissions of air pollutants is stored, and an engine is controlled using the specific revolution speed as a target revolution speed. The absorption torque of a hydraulic pump is subjected to high-pass filtering whereby a high-frequency component devoid of a trend component is obtained. Target assist torque is computed from the high-frequency component, and the assist electric motor is subjected to power running/generation control accordingly. A specific output torque range suitable for reducing the emissions of air pollutants is stored, and the target assist torque is corrected so that the trend component does not exceed the specific output torque range.

摘要翻译： 液压作业机具有与发动机连接的辅助电动机和液压泵。 不管液压泵的负载扭矩如何变动，来自发动机的废气中的空气污染物的排放都被最小化。 存储适合于减少空气污染物排放的特定转速，以特定转速作为目标转速来控制发动机。 对液压泵的吸收扭矩进行高通滤波，从而获得没有趋势分量的高频分量。 从高频分量算出目标辅助扭矩，辅助电动机相应地进行动力运行/发电控制。 存储适合于减少空气污染物排放的特定的输出转矩范围，对目标辅助转矩进行修正，使趋势成分不超过特定的输出转矩范围。

公开(公告)号：US09399856B2

公开(公告)日：2016-07-26

申请号：US14110808

申请日：2012-05-24

申请人： Kazuo Fujishima ,  Yusuke Kajita ,  Mitsuo Sonoda ,  Masatoshi Hoshino ,  Akira Nakayama ,  Junji Yamamoto ,  He Bao ,  Seiji Ishida ,  Shiro Yamaoka ,  Takashi Okada

发明人： Kazuo Fujishima ,  Yusuke Kajita ,  Mitsuo Sonoda ,  Masatoshi Hoshino ,  Akira Nakayama ,  Junji Yamamoto ,  He Bao ,  Seiji Ishida ,  Shiro Yamaoka ,  Takashi Okada

IPC分类号： F15B21/14 ,  E02F9/20 ,  B60W20/00 ,  E02F9/22 ,  B60K6/46 ,  B60K17/28 ,  F02D41/14 ,  F02D31/00 ,  B60W10/06 ,  B60W10/08 ,  B60W30/188

CPC分类号： E02F9/2025 ,  B60K6/46 ,  B60K17/28 ,  B60W10/06 ,  B60W10/08 ,  B60W20/00 ,  B60W20/11 ,  B60W20/15 ,  B60W20/16 ,  B60W30/1888 ,  B60W2300/17 ,  B60W2710/0644 ,  B60Y2200/412 ,  E02F9/20 ,  E02F9/2075 ,  E02F9/2296 ,  F02D31/001 ,  F02D41/1406 ,  F02D2250/18 ,  F02D2250/36 ,  F02D2250/38 ,  F15B21/14 ,  F15B2211/20515 ,  F15B2211/20523 ,  F15B2211/20546 ,  F15B2211/6316 ,  F15B2211/633 ,  F15B2211/88 ,  Y02T10/6217 ,  Y02T10/6286

摘要： A hydraulic working machine has an assist electric motor connected to an engine and a hydraulic pump. The emissions of air pollutants in the exhaust gas from the engine are minimized regardless of fluctuations in the load torque of the hydraulic pump. A specific revolution speed suitable for reducing the emissions of air pollutants is stored, and an engine is controlled using the specific revolution speed as a target revolution speed. The absorption torque of a hydraulic pump is subjected to high-pass filtering whereby a high-frequency component devoid of a trend component is obtained. Target assist torque is computed from the high-frequency component, and the assist electric motor is subjected to power running/generation control accordingly. A specific output torque range suitable for reducing the emissions of air pollutants is stored, and the target assist torque is corrected so that the trend component does not exceed the specific output torque range.

摘要翻译： 液压作业机具有与发动机连接的辅助电动机和液压泵。 不管液压泵的负载扭矩如何变动，来自发动机的废气中的空气污染物的排放都被最小化。 存储适合于减少空气污染物排放的特定转速，以特定转速作为目标转速来控制发动机。 对液压泵的吸收扭矩进行高通滤波，从而获得没有趋势分量的高频分量。 从高频分量算出目标辅助扭矩，辅助电动机相应地进行动力运行/发电控制。 存储适合于减少空气污染物排放的特定的输出转矩范围，对目标辅助转矩进行修正，使趋势成分不超过特定的输出转矩范围。