- 专利标题: Electro-hydrostatic actuator deceleration rate control system
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申请号: US14441388申请日: 2013-11-07
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公开(公告)号: US09790963B2公开(公告)日: 2017-10-17
- 发明人: Ralf Gomm , Bjorn Eriksson
- 申请人: Parker-Hannifin Corporation
- 申请人地址: US OH Cleveland
- 专利权人: Parker-Hannifin Corporation
- 当前专利权人: Parker-Hannifin Corporation
- 当前专利权人地址: US OH Cleveland
- 代理机构: Renner, Otto, Boisselle & Sklar, LLP
- 国际申请: PCT/US2013/068934 WO 20131107
- 国际公布: WO2014/074708 WO 20140515
- 主分类号: F15B11/00
- IPC分类号: F15B11/00 ; F15B11/04
摘要:
Presented is a system and method to control hydraulic fluid flow, more specifically throttle hydraulic fluid flow, to achieve actuator deceleration rates greater than the maximum deceleration rate of an electrically driven pump. Electric machines and electric machine inverters generally have a maximum torque and current limit beyond which they cannot be operated at. To decelerate a large inertia load for example, high electric machine torque and inverter current are required to provide the braking torque, opposing the fluid flow and pressure generated by the load and hydraulic system.
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