Automotive power-assisted steering system, Electrical Engineering

Assignment Help:

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


Related Discussions:- Automotive power-assisted steering system

Why we need digital systems, Q. Why we need digital systems? EASIER TO ...

Q. Why we need digital systems? EASIER TO PROCESS: For the reason that digitized information breaks all information into discrete units the information is easier to process and

Ultrasonic Sensor Help for Seventh Grader, What are ultrasonic sensors made...

What are ultrasonic sensors made of? What is a good online source to find information on a basic level about ultrasonic sensors?

Calculus, area bounded by the curve y=3x(x-2)^2 and the x-axis

area bounded by the curve y=3x(x-2)^2 and the x-axis

Metallic bonding, Metallic Bonding In metals, the outer shell is fi...

Metallic Bonding In metals, the outer shell is filled through no more than three electrons (loosely bound and given up easily) => great chemical activity and very high elec

Linear and digital ics, write down the application of shift register and ex...

write down the application of shift register and explain it.

Canonical sum-of-products form, Q. The truth table for F(A,B,C) = mi (2, 3,...

Q. The truth table for F(A,B,C) = mi (2, 3, 4 5) is as follows: (a) Express F in a canonical sum-of-products form. (b) Minimize F in an SOP form, and obtain a possible realiz

Equivalent circuit of a dc machine, Equivalent Circuit of a DC Machine ...

Equivalent Circuit of a DC Machine A review of the material presented with regard to elementary direct-current machines can be helpful at this stage to recall the principles of

Applications of hall effect, Applications of Hall Effect: (i)  To dete...

Applications of Hall Effect: (i)  To determine whether semiconductor is of n type or p type. (ii) To determine carrier concentration. (iii) Measurement of carrier mobili

Explain virtual memory, Explain virtual memory. The term virtual memor...

Explain virtual memory. The term virtual memory considers as to something that appears to be present but in fact it is not. The virtual memory technique permits users to use m

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd