An electronic hydraulic power steering system for automatic operating of tractor is introduced in this paper.

介绍了一种用于拖拉机自动驾驶的电控液压动力转向系统。

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Heavy multi-shift is due to hydraulic power steering system caused by non-functional, it has nothing to do with turning the mechanical parts.

转向沉重多是由于转向液压助力系统不起作用引起的，它与转向机械部分无关。

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Based on the principle of power bond graphs, the modeling method for the hydraulic steering control unit type BZZ5 with the load sensing hydraulic steering system is introduced.

依据功率键合图原理，研究BZZ5型液压转向器和负荷传感全液压转向系统的建模方法。

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Electronic steering is replacing hydraulic power-steering in many cars.

ECONOMIST: Rational consumer

Controlling steering using electric motors also helps to reduce fuel consumption and hence carbon-dioxide emissions. (Electric motors require power only when the steering wheel is turned, whereas a hydraulic pump drains power from the engine all the time.) Ford reckons 90% of its cars will have electronic steering within three years.

ECONOMIST: Rational consumer

E-Steer which eliminates the need for the traditional power-steering system's hydraulic pump, hoses, fluid and belts.

ECONOMIST: MONITOR