How Does Electric Power Steering Work?
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- Опубликовано: 9 авг 2021
- What is a Steering?
“Turning” is a fundamental function of a vehicle that is produced by a steering system that changes the vehicle direction by turning the steering wheel which further turns the tires. A power steering system is a mechanical device that helps the driver to turn the vehicle by increasing the steering force required to turn the wheels, which makes it easier to steer or move the vehicle.
The power steering pump compresses and ensures the hydraulic fluid enters the vehicle’s power steering system, which supports the driver to steer the vehicle’s steering wheels.
An electric or hydraulic actuator provides controlled power to the steering device so that the driver can put less energy to steer the steering wheel when driving at normal speeds or when the vehicle is stationary.
The power steering systems are designed in such a way that they provide artificial feedback about the forces acting on the wheels. This system had a slotted rotor that turns to allow fluid to enter the pump. As the fluid goes in the rotor, it continues to revolve, moving the fluid to the drain port. At this stage, the fluid introduces a reservoir in the steering system, where the reservoir helps the steering mechanism to utilize the appropriate pressure to keep the wheels turning smoothly.
A vehicle’s steering system is an essential component of vehicle dynamics, which combines several mechanical parts at specific wrench angles to steer the vehicle’s front wheels in response to passenger inputs through steering wheels. Nowadays, 80% of all vehicles on the road have power steering systems that have become an essential requirement of every vehicle.
How does a Steering System work?
A steering system transforms the rotary motion of the steering wheel into a swiveling motion of the road wheel so that the rims of the steering wheel can steer a long distance to move the road wheel a short distance.
The power steering system works differently depending on the force multiplier used. Therefore, to understand how power steering works, these methods need to be explained individually.
) Hydraulic Power Steering System
The hydraulic power steering (HPS) system uses a hydraulic system to increase the steering input force and smoothly steer the front wheels. This force produces through a chain of different parts such as highly compressed hydraulic oil, hydraulic lines, hydraulic rotor pump, hydraulic cylinder, and a linking mechanism that connects the hydraulic system to the steering system. The hydraulic steering system works in the following way:
-As the driver sends input by turning the steering wheel, the engine-driven hydraulic pump initiates pumping the highly pressurized hydraulic oil through the line.
- The hydraulic force produced by the pump enters into the cylinder, which smears this pressure to the hydraulic cylinder piston.
-The high-pressure piston starts running from one end to the other, pushing more fluid through the line. As the piston moves, the driver’s input force multiplies numerous times.
-Next, the high-pressure fluid delivered by the cylinder employs pressure to the pinions connected with the clutch device, thereby applying a large force to the rack gear to steer the front wheels.
Electric Power Steering System (EPS)
In the types of steering systems, an electric power system is the latest system. This is because, in this system, an electric motor uses to multiply the steering input force instead of the hydraulic fluid. The working of the electric steering system is given below:
-As the driver sends input via the steering wheel, an electronic sensor mounted on the steering column detects the inputs and sends them to the automobile’s ECU (electrical control unit).
-The automobile’s ECU analyzes the steering wheel input and delivers a voltage signal to the electric motor at the end of the steering column. The gears of the electric motor always mesh with the pinion gears.
-The electrical control unit sends the voltage signal so that the electric motor powered by the automobile’s battery can start and can deliver a specific torque based on the received voltage signal’s value.
-As soon as the motor starts, the gears which maintain constant mesh with the pinion gears begin to transmit the multiplied torque to the pinion, which transfers this torque to the fixed rack.
-When this pinion exerts a torque on the rack, the rack moves to steer the front wheels as needed (via linked tie rods).
Types of Power Steering System
The power steering system has the following three types:
-Hydraulic steering system
- Electric steering system
- Electro-hydraulic steering system
I love it. Effortless and quiet, and no fluid to mess with
i mean, mine says it's electronically assisted but it still has a power steering fluid resivuor so i would double check your car
I was doing all my fluids. Told the mechanic to do the Power steering, this turned into a few minutes on the phone trying to figure out what to put in there on All Data. Come to find out it's electric. Score. No need to spend money! Haha
@@Arronturknell just depends on the vehicle model and year i suppose. some like to argue that the power steering system alone in its top tier shape is more reactive than an electric one, just like the pov that claims throttle cable acceleration is more reactive than electronic throttle body and pedal. i agree with the throttle cable being much more responsive as long as everything else works the way it's supposed to, same goes for the hydraulic power steering
No fluid = expensive repair
Best diagram and explanation of of the electric power steering.
Make sure fuses are clean and plugged in tight . The do vibrate loose sometimes.
thanks
Chevy malibu 2012, electric power steering. Mines going out . It keeps turning on n off everytime I start it. Sometimes it works sometimes it doesn't. New battery, terminals are tight. Do i need to change the motor and sensor out? How would I know which 1 I need to change
hi sir i invite you to read this document for learn defferent DTC exist in power sterring system:www.yourmechanic.com/article/p0637-obd-ii-trouble-code-power-steering-control-circuit-high-by-brady-klopfer
My car loses power due to my electric power steering that & my steering wheel light is on. 😐😐 ughhhh I hope it’s not expensive to fix. Like I am so used to a standard power steering when you put Fluid in it.. but mines is electric
I can offer some general advice. It sounds like you're experiencing issues with your electric power steering system, and it's affecting your car's performance. Unfortunately, without a detailed diagnosis, it's challenging to pinpoint the exact problem.
Here are a few general suggestions:
Check the Power Steering Fluid Level
Inspect the Electrical System
@AutomotiveEngineeringschool sounds like you pit oil in the electric power steering - motor how you do that ?
ur videos r much useful. Nice
👍
thank you
I have lexus car is 200 2016 , at 130 km/h speed after some time the power steering hard to move and idea what is the causes??!
It's warning you to slow down thru school zones - 40 kmh.
Warning you to slow down !
Uses closed loop feedback to control the amount of assist.
thank you sir for this information
I usually don't like electronic things in cars apart from the absolute essentials...to me what the electrically assisted steering did to steering is what fuel injection did to fuel delivery to engine - clean and efficient! But I hate the electronic e-brake...still prefer the cable operated handbrake. If anyone comes up with a electronic system that emulates the traditional handbrake, I am ALL FOR IT.
I have a 2016 charger, I can't move the steering wheel, it's very hard
hi your ESP is electrical or hydraulic?
Check the fuse for the power steering.
Why does is sound like its rubbing something when its cold weather?
My Steering wheel suddenly started to become hard on Park and Neutral but turns normally on Driive and Reverse gear. When that happens, the PS light illuminates and goes off when i engage the Drive or Reverse gear. Any idea on what i should do to get it sorted? Its a 2006 Toyota Crown.
i advise you to read this documents:www.thisdaylive.com/index.php/2020/12/05/top-six-causes-of-hard-steering-wheel-and-solutions/
Automotive electronics sir pakka sonnara bro?
Aama bro
how does the steering stopper works on electronic power steering?
Probably through the angle sensor. You either do a hard stop(no power steering if you reached the max angles) or soft (reduce it gradually to zero the closer you get to the max angles).
Or starts to smoke '@@marcelpursche5339
I have a Toyota Corolla s 2011
what is problem sir?
the steering wheel is hard and does not turn,
@@erikasalas1840 are you have electrical sterring or hydro.
The hell with the damn music, I can't stand trying to watch a video and read subtitles at the same time. Just narrate the damn thing.
Agreed not sure why they have this annoying background music
😂
Oh "shat" up! You are provided free information and want to complain how it's provided. Either look for another video without music or enjoy what is being provided for you......the nerve! You ungrateful arse!!!! 😒
Looking for help from anyone. I think my vehicle has this setup. But when I turn the steering wheel to the right. It makes a low frequency squeaking sound. Any suggestions on what it may be? It’s only when I turn to the right.
I think The most common reason is simply due to wear and tear on the parts of your car. Over time, the bearings in your steering column can become worn down, causing them to make noise when they rub against each other. Another common cause of noise from the steering wheel is due to a lack of lubrication.
@@AutomotiveEngineeringschoolif its the case of simple wear and tear how could you possibly tell? Just bought a 2020 elantra with electric steering and i also get a small noise when leaving a parking spot or making a uturn but the actual feeling of the turn feels correct
The 70's music is making it difficult to concentrate on the details of the device. How about some verbal explanations instead of the disco music?
Enga sir paaka sonnaru adhan vandhen
Does electric power steering use power steering liquid?
this is electric power steering i will explain hydraulic power steering
No. There are rare electric motor driven hydraulic pumps that use fluid, but the number of vehicles with that system are few. In modern passenger cars, electric power steering is a motor that is directly connected to the steering system, and only powers the motor when a sensor senses that the driver is applying force to the steering wheel.
In my experience this is the worst type of steering.
thank you sir
@Frank Vera I rather deal with a cheap ass power steering leak then a bad electric power steering motor (Pontiac G6 worst Electric Power steering I've had steering motor went out at 128,xxx miles cheapest I could find around $450 something) it's 4 times the cost but does a worse job and less reliable than the old pump n reservoir. As for the road thing yea you can feel the motor turn more than you can feel the road and my opinion Toyota (Corolla) so far has done an OK job not good just ok cuz nobody asked and nobody needed it also handled a bit better than most it was just added to raise car prices and before you say it's the future well GM had a recall for electric power steering motors. Trust me the car companies are against you not with you
I have one in my honda fit been problem free for years.
Yeah, more Electronics what if the electric motor fails?
True it’s not like power steering
Yeah what if
The normal steering will continue to work so no major risk.
Just like if your power steering pump or belt went out
Kiss your bum good bye !
Cambridge Automotive in San Antonio, TX is requesting to change my Electric Power Steering Fluid on my 2015 Toyota Camry! Wondering If I should let them for $119? 😂