Title:
圧力制限下で中立ドリフト補償と温度補償を含む油圧駆動システム
Document Type and Number:
Japanese Patent JP2010528913
Kind Code:
A
Abstract:
A hydraulic drive system for storing and releasing hydraulic fluid includes a high pressure storage device, a low pressure storage device, and a pump-motor operating at a range of pump-motor speeds for converting between hydraulic energy and mechanical energy. The pump-motor is disposed between the high pressure device and the low pressure device. In normal operation, the hydraulic drive system enters a motoring mode where hydraulic energy is released from the high pressure storage device and converted to mechanical energy using the pump-motor. It also enters a pumping mode where mechanical energy is converted into hydraulic energy. A neutral state exists where hydraulic energy is neither stored nor released from the high pressure storage device. An approach for compensating for temperature changes using varying pressure limits helps to maintain the hydraulic drive system in normal operation, thereby promoting efficiency within the hydraulic drive system. When the pump-motor includes a swash-plate or similar structure, compensating for drift during normal operation helps to promote efficient operation of the hydraulic drive system.
Inventors:
Anderson, Randy
Gilbert, Doug
Gilbert, Doug
Application Number:
JP2010507010A
Publication Date:
August 26, 2010
Filing Date:
May 10, 2007
Export Citation:
Assignee:
EATON CORPORATION
International Classes:
B60K6/12; F16H61/4096; F16H61/42; F16H61/439
Domestic Patent References:
| JP2005538888A | 2005-12-22 | |||
| JPH04100073U | 1992-08-28 | |||
| JPH1163218A | 1999-03-05 | |||
| JP2005538888A | 2005-12-22 |
Foreign References:
| WO2006017901A1 | 2006-02-23 | |||
| EP0718138A1 | 1996-06-26 | |||
| WO2006017901A1 | 2006-02-23 |
Attorney, Agent or Firm:
Calyx
Miyazaki Yoshio
Kaoru Onozuka
Akio Tagami
High Masahiro
Miyazaki Yoshio
Kaoru Onozuka
Akio Tagami
High Masahiro