Unit 10 Automobile Steering System 一、重难点 1,词汇： steering gear,steering colum,gear unit,steering linkage,steering wheel,rack and pinion,recirculating ball,power steering.steering gear lock. transmission lock,transmission shift control lever,turn signal switch,wiper switch,emergency flasher switch 2.句子： 1)The key to the rotary valve is a torsion bar.The torsion bar is a thin rod of metal that twists when torque is applied to it.. 2)As the vanes spin.they pull hydraulic fluid from the return line at low pressure and force it into the outlet at high pressure. 3)The torsion bar also turns the output of the steering gear.connecting to either the pinion gear or the worm gear depending on which type of steering the car has. 4)One of the coolest ideas on the drawing board is the "steer-by-wire"or "drive-by-wire"system 5)It would contain sensors that tell the car what the driver is doing with the wheel, and have some notors in it to provide the driver with feedback on what the car is doing. 二、难点讲解 1,句子 1)The torsion bar is a thin rod of metal that twists when torque is applied to it. 抗杆是一种细金属杆，城加扭矩时就会发生扭由。 2)As the vanes spin.they pull hydraulic fluid from the return line at low pressure and force it into the outlet at high pressure. 随着叶片转动。液压轴核拉国到低压线，并迫使其进入高压出口， 3)The torsion bar also turns the output of the steering gear.comnecting to either the pinion gear or the worm gear depending on which type of steering the car has. 扭杆愿动转向器的输出部件，根据汽车转向器型式不月，该部件与小齿轮或祸轮相连。 4)One of the coolest ideas on the drawing board is the "steer-by-wire"or “drive-by-wire”systen 设计中最酷的把法就是“线控转向或者“线控里动”系统。 5)It would contain sensors that tell the car what the driver is doing with the wheel. and have some potors in it to provide the driver with feedback on what the car is doing. 线控系统具有能够反应驾驶员操拉转向盘意图的传感器，以及能够给驾驶员提供车辆反馈信 息的距动马达。 2.Power steering习yiem
Unit 10 Automobile Steering System 一、重难点 1. 词汇： steering gear, steering column, gear unit, steering linkage, steering wheel, rack and pinion, recirculating ball, power steering, steering gear lock, transmission lock, transmission shift control lever, turn signal switch, wiper switch, emergency flasher switch 2.句子： 1）The key to the rotary valve is a torsion bar. The torsion bar is a thin rod of metal that twists when torque is applied to it.. 2）As the vanes spin, they pull hydraulic fluid from the return line at low pressure and force it into the outlet at high pressure. 3）The torsion bar also turns the output of the steering gear, connecting to either the pinion gear or the worm gear depending on which type of steering the car has. 4 ） One of the coolest ideas on the drawing board is the "steer-by-wire" or "drive-by-wire" system. 5）It would contain sensors that tell the car what the driver is doing with the wheel, and have some motors in it to provide the driver with feedback on what the car is doing. 二、难点讲解 1.句子： 1）The torsion bar is a thin rod of metal that twists when torque is applied to it. 扭杆是一种细金属杆，施加扭矩时就会发生扭曲。 2）As the vanes spin, they pull hydraulic fluid from the return line at low pressure and force it into the outlet at high pressure. 随着叶片转动，液压轴被拉回到低压线，并迫使其进入高压出口。 3）The torsion bar also turns the output of the steering gear, connecting to either the pinion gear or the worm gear depending on which type of steering the car has. 扭杆驱动转向器的输出部件，根据汽车转向器型式不同 ，该部件与小齿轮或涡轮相连。 4 ） One of the coolest ideas on the drawing board is the "steer-by-wire" or "drive-by-wire" system. 设计中最酷的想法就是“线控转向”或者“线控驱动”系统。 5）It would contain sensors that tell the car what the driver is doing with the wheel, and have some motors in it to provide the driver with feedback on what the car is doing. 线控系统具有能够反应驾驶员操控转向盘意图的传感器，以及能够给驾驶员提供车辆反馈信 息的驱动马达。 2.Power steering system
How Car Steering Works Pump Pulley Rotary valve Steering gear 3.Arotary Vane Pump Reservoir Retur Atting Rotor Pressure Hose Fitting Rellef Valve ●200e-w
3.A rotary Vane Pump
Inout Shaft Outer Valve Unit Reserveir Torsion Bar Inner Valve Unit (connected 1o imput shaft) ●2001s-w内