Automotive power-assisted steering system, Electrical Engineering

In terms of negative feedback, there exists an analogy between the operational amplifier and the power-steering mechanism of an automobile. The hydraulic pump is analogous to the power supply in an op-amp circuit. The position of the booster-cylinder piston that is linked to the steering is analogous to the op-amp output signal; the mechanical linkage between the control valve and the booster-cylinder piston is analogous to the feedback circuit; the control-valve response to the difference between the input from the steering wheel and the position of the steering linkage is analogous to the op-amp response to its differential input signal. Thus the automotive power- assisted steering system is but an example of negative feedback in a mechanical sense.

Figure 5.6.1 illustrates in a simplified manner how a hydraulic pump driven by the engine continuously supplies pressure to a control valve which in turn supplies the fluid to the two sides of the booster cylinder. A negative feedback path is established from the booster cylinder through the mechanical linkage back to the control valve.

For straight steering, the pressure applied is equal on both sides of the cylinder and, as such, no turning force results.When the steering wheel is moved by the driver to turn the wheels in the desired direction, more pressure is applied to one side of the cylinder or the other. A mechanical feedback arm from the steering linkage causes the valve to return to its neutral position as the wheels turn, thereby allowing the driver to make a gradual turn. As and when the steering wheel is turned, the wheels move a proportional amount rather than moving all the way to the extreme position.

117_Automotive Power-Assisted Steering System.png

Posted Date: 6/21/2013 6:58:31 AM | Location : United States

Related Discussions:- Automotive power-assisted steering system, Assignment Help, Ask Question on Automotive power-assisted steering system, Get Answer, Expert's Help, Automotive power-assisted steering system Discussions

Write discussion on Automotive power-assisted steering system
Your posts are moderated
Related Questions
Given that a BJT has β = 60, an operating point defined by I CQ = 2.5 mA, and an Early voltage V A = 50 V. Find the small-signal equivalent circuit parameters g m , r o , and rπ.

Let ω = 2π × 60 rad/s corresponding to a frequency of 60 Hz. (a) Consider v(t) = 100 √2 cos(ωt + 30°) V and i(t) = 10 √2 sin(ωt + 30°) A. Find the corresponding phasors ¯V and ¯

Bivector Meter As it is clear from the name provided 'Bivector', it records kWh and kVAh consumption along with maximum demand on both or on any one as needed. The working pri

Addressing Model As we have learned  already  that each instruction has two  parts  one is  op code and another  is operand. Op code  specified  the type  of operations to be

Revision  of Basics Although  it is  assumed in this book  that the  reader has  enough  knowledge of  various number systems ( binary, octal and hexadecimal and their relation

A conical tank is shown in Figure. The tank is filled with water.  Using MATLAB, determine: a.   the volume of water in the tank b.   the weight of the water in the tank.

Atoms with four valence electrons are good conductors. This statement is true or false. Ans:  Atoms are good conductors with four valence electrons. This statement is false.

CRM Triangle The following diagram which is called as CRM Triangle. Strategy refers to the whole stand taken through the company. It could selected a defensive posture in t

Q. Which Steps are used for the procurement? a. Initially, an introductory letter may be sent addressed to The Head, NRSA Data Centre, National Remote Sensing Agency, Balanagar