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Primary steering enabler during engine failure
专利权人:
发明人:
Brian D. Kuras,Michael J. Barngrover
申请号:
US14146492
公开号:
US09216738B2
申请日:
2014.01.02
申请国别(地区):
US
年份:
2015
代理人:
摘要:
A system and method are provided for maintaining hydraulic steering for a machine during engine out or engine lugging conditions. The machine includes a torque-controlled transmission driven by an engine, the engine further being linked to a hydraulic steering pump that provides hydraulic power to a steering actuator. The machine may be, for example, a wheel loader or an off highway truck. The system and method include detecting an undesirable reduction of engine speed while the machine is travelling, and responsively reducing the transmission power to maintain the engine speed at a desired level to power the hydraulic steering pump. When the reduced requested transmission power reaches zero, a power reversal through the transmission is commanded to maintain the engine speed at the desired level to power the hydraulic steering pump.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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