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电气与信息学院自动化专业毕业设计(论文)外文翻译
Electonic power steering system Research and Design
电子动力转向系统的研究与设计
注:本毕业设计(论文)外文翻译文档前半部分为英文部分,后
半部分为中文部分。 本外文翻译由专业人员翻译, 内容详细数据
全面,得到导师的一致好评。 值得大家借鉴参考。本文档下载后
为 WORD 版本,可按需直接编辑。
1
Electronic power steering system
What it is
Electrically powered
steering uses an electric motor to drive either the power steering hydraulic pump or
the steering linkage directly. The power steering function is therefore independent of
engine speed, resulting in significant energy savings. How it works :
Conventional power steering systems use an engine accessory belt to drive the
pump, providing pressurized fluid that operates a piston in the power steering gear or
actuator to assist the driver.
In electro-hydraulic steering, one electrically powered steering concept uses a
high efficiency pump driven by an electric motor. Pump speed is regulated by an
electric controller to vary pump pressure and flow, providing steering efforts tailored
for different driving situations. The pump can be run at low speed or shut off to
provide energy savings during straight ahead driving (which is most of the time in
most world markets).
Direct electric steering uses an electric motor attached to the steering rack via a
gear mechanism (no pump or fluid). A variety of motor types and gear drives is
possible. A microprocessor controls steering dynamics and driver effort. Inputs
include vehicle speed and steering, wheel torque, angular position and turning rate.
Working In Detail:
A steering sensor is located on the input shaft where it enters the
gearbox housing. The steering sensoris actually two sensors in one: a torque
sensor that converts steering torque input and its direction into voltage signals, and a
rotation sensor that converts the rotation speed and direction into voltage signals.
An interface circuit that shares the same housing converts the signals from the
2
torque sensor and rotation sensor into signals the control electronics can process.
Inputs from the steering s
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