VWs been using this in Rabbits and Jettas for half a decade. It fails like a hydraulic rack would...no more dangerous than any other setup, and the electric motor consumes less "HP" than a hydraulic pump. No one is complaining when they pass the gas station...
@Mieden can save even more power when all the electricity is gained through braking recovery systems rather than an alternator so yes more than likely the future due to less wasted power on the engine.
many issues .. for example, what if the tires had a high torsional stresses?? the gear tooth may get damaged .. although many problems may happen to a hydraulic power steering in the conditions but it is still safer
Very smart solution to get rid of the added complicity of a hydrolice steering system while maintaining the safe mechanical connection between the steering wheel and tires.
@NissanAltima2005 Basically, yes. The lack of a viscous coupling means if the motor freezes/jams/seizes steering is LOST. Viscous simply means liquid/fluid.
Electric motors also have a bad habit of having intermittent failures, sometimes surging and "bucking" along the way, which could cause the car to turn on its own, fighting the driver.
A torque converter (viscous coupling) would reduce the likelihood of this manifold, but the video doesn't show one.
this is almost as bad as throttle by wire. I drove a new subaru the other day. Really really light steering wheel. I'm suprised how many components are not connected anymore. On my truck.... I turn the steering wheel & the wheels turn. On the subaru... you turn the steering wheel which sends an electronic signal to a motor in a seperate location which turns the wheels. No battery.... no turning the wheel. Same with the throttle. Wear-as my truck has a direct cable to the air valve. Don't like it
@lifeisgood070 Part 1: I was about to agree with your statement about "no battery.... no turning the wheel", but then I saw that the steering wheel, at least in this design, is still fully connected to the steering rack, just like in a vehicle with a hydraulic setup... which makes me feel much better about cars with this form of power steering, especially in terms of safety.
@lifeisgood070 Part 2: Either way, I don't like the throttle-by-wire stuff either, I think that should be left to fully electric and hybrid vehicles, where electric motors are the direct propulsion mechanisms. Also, now that I've thought about it: Even if your trucks' battery went dead, although your truck does have hydraulic power steering, it would no longer have power steering either, since the engine wouldn't be able to operate and spin the power steering pump pulley...
@lifeisgood070 Part 3: So a car with electric power steering isn’t much different than your truck. You start your truck, the trucks engine spins the power steering pump pulley, you turn your steering wheel and the generated hydraulic pressure aids you. You turn on your Subaru, the engine spins the alternator pulley, you turn your wheel and the generated electricity aids you...
@lifeisgood070 Part 4: They basically swapped the power steering pump and the rest of its’ equipment for an electric motor, and directly attached it to the steering shaft… I apologize for the multi-post reply.
I think is very simple. You still have a direct contection. Motor fails, you just don't have power. Electric motors are reliable and simple. Look at a hydrolic system. Complex. Don't like super cold weather. Extra stress on belts, and leaks when old.
@pef286 you are right, it is very simple, and electric motors are very reliable, HOWEVER, the way this particular system is set up, if the worm gear jams, or the electric motor seizes up... that could cause a catastrophic loss of steering control. granted that is a BIG if. true, this is the future, but at this day in age, we have systems that can check other systems and they can put in a redundant fail safe so that IF the electric motor seizes, perhaps they could... disengage the worm gear...
@RustyRazor2010 i am a mechanical engineer and i see the same thing there is no type of limited slip/torque converter in the electric motor shaft so if/when the motor seizes/fails steering would be lost.
@steveq34 I don't think it will jam up, but will perform stiffer just like a leaked hydraulic assisted steering. A good way to test that is to try to steer the car while it is turned off.. it will still work and I am also trying to figure out how...
Applying the force of the electrical motor on the pinion or the steering column is not the best or the smartest solution, applying it to the rack is the best
zf steering that is used in BMW are all problematic , central gears on the rack and pinion lose their geometry and finally we get problematic steering performance, thanks ZF for getting problems
Comment removed
AGGELOSsk8 2 weeks ago
no me gusta si se corta la electrisidad o hay un problema girara loco o probocara un accidente !! yo no probaria esa tecnologia!!
TheDjdog123 2 months ago
This has been flagged as spam show
please can somone tell me what is the name of the software used to do this simulation
azeraqw2 3 months ago
FAIL!
iulik17d 3 months ago
Don't looks safe to me.
GTAstuntking 4 months ago
VWs been using this in Rabbits and Jettas for half a decade. It fails like a hydraulic rack would...no more dangerous than any other setup, and the electric motor consumes less "HP" than a hydraulic pump. No one is complaining when they pass the gas station...
Mieden 4 months ago
@Mieden can save even more power when all the electricity is gained through braking recovery systems rather than an alternator so yes more than likely the future due to less wasted power on the engine.
seanhamson 3 months ago
volume rape
AZIlluminati08 5 months ago 2
with this system you cannot feel the road surface. Any force transmited by the wheels, will be blocked by the espiral actuator of the electric motor.
jaaftmr 6 months ago
many issues .. for example, what if the tires had a high torsional stresses?? the gear tooth may get damaged .. although many problems may happen to a hydraulic power steering in the conditions but it is still safer
khalilovH 6 months ago
Very smart solution to get rid of the added complicity of a hydrolice steering system while maintaining the safe mechanical connection between the steering wheel and tires.
NissanAltima2005 7 months ago
@NissanAltima2005 Except if the electric motor seizes, so does your steering ability...
And electric motors seize ALL THE TIME...
looncraz 4 months ago
@looncraz Does that mean jam?
NissanAltima2005 4 months ago
@NissanAltima2005 Basically, yes. The lack of a viscous coupling means if the motor freezes/jams/seizes steering is LOST. Viscous simply means liquid/fluid.
Electric motors also have a bad habit of having intermittent failures, sometimes surging and "bucking" along the way, which could cause the car to turn on its own, fighting the driver.
A torque converter (viscous coupling) would reduce the likelihood of this manifold, but the video doesn't show one.
looncraz 4 months ago
@looncraz Thanks
NissanAltima2005 4 months ago
u cannot transfer the movement from the crown to the worm, it goes oneway
kr3mn1 7 months ago
@kr3mn1 :some systems are reversible,and this one is a good example.
theCrazyFrenchGuys 7 months ago
icamd PnS door (automatic door )
jeongkilsong 8 months ago
this is almost as bad as throttle by wire. I drove a new subaru the other day. Really really light steering wheel. I'm suprised how many components are not connected anymore. On my truck.... I turn the steering wheel & the wheels turn. On the subaru... you turn the steering wheel which sends an electronic signal to a motor in a seperate location which turns the wheels. No battery.... no turning the wheel. Same with the throttle. Wear-as my truck has a direct cable to the air valve. Don't like it
lifeisgood070 9 months ago
@lifeisgood070 Part 1: I was about to agree with your statement about "no battery.... no turning the wheel", but then I saw that the steering wheel, at least in this design, is still fully connected to the steering rack, just like in a vehicle with a hydraulic setup... which makes me feel much better about cars with this form of power steering, especially in terms of safety.
seth570123 6 months ago
@lifeisgood070 Part 2: Either way, I don't like the throttle-by-wire stuff either, I think that should be left to fully electric and hybrid vehicles, where electric motors are the direct propulsion mechanisms. Also, now that I've thought about it: Even if your trucks' battery went dead, although your truck does have hydraulic power steering, it would no longer have power steering either, since the engine wouldn't be able to operate and spin the power steering pump pulley...
seth570123 6 months ago
@lifeisgood070 Part 3: So a car with electric power steering isn’t much different than your truck. You start your truck, the trucks engine spins the power steering pump pulley, you turn your steering wheel and the generated hydraulic pressure aids you. You turn on your Subaru, the engine spins the alternator pulley, you turn your wheel and the generated electricity aids you...
seth570123 6 months ago
@lifeisgood070 Part 4: They basically swapped the power steering pump and the rest of its’ equipment for an electric motor, and directly attached it to the steering shaft… I apologize for the multi-post reply.
seth570123 6 months ago
I think is very simple. You still have a direct contection. Motor fails, you just don't have power. Electric motors are reliable and simple. Look at a hydrolic system. Complex. Don't like super cold weather. Extra stress on belts, and leaks when old.
Like it not, it is the future.
pef286 11 months ago
@pef286 you are right, it is very simple, and electric motors are very reliable, HOWEVER, the way this particular system is set up, if the worm gear jams, or the electric motor seizes up... that could cause a catastrophic loss of steering control. granted that is a BIG if. true, this is the future, but at this day in age, we have systems that can check other systems and they can put in a redundant fail safe so that IF the electric motor seizes, perhaps they could... disengage the worm gear...
koobra87 9 months ago
I'm not a mechanical engineer and I look at this and see F-A-I-L!
RustyRazor2010 1 year ago 15
@RustyRazor2010 i am a mechanical engineer and i see the same thing there is no type of limited slip/torque converter in the electric motor shaft so if/when the motor seizes/fails steering would be lost.
idontrunntoofast 2 weeks ago
I think this is not a good design.
sakda357 1 year ago 3
I guess if the electric motor jams, the steering will be blocked, especially since the worm gear ratio is so high it cannot be driven by the crown...
Kinda defeats the safety purpose of having a mechanical connection from the steering wheel to the shaft.
steveq34 1 year ago 21
@steveq34 I don't think it will jam up, but will perform stiffer just like a leaked hydraulic assisted steering. A good way to test that is to try to steer the car while it is turned off.. it will still work and I am also trying to figure out how...
LTF85199 9 months ago
Applying the force of the electrical motor on the pinion or the steering column is not the best or the smartest solution, applying it to the rack is the best
ibr248 1 year ago
zf steering that is used in BMW are all problematic , central gears on the rack and pinion lose their geometry and finally we get problematic steering performance, thanks ZF for getting problems
kentau123 1 year ago
great !!!! This is the first time I see how an electrical power steering works !!!..thanks a lot for sharing !!!
domyaska 1 year ago