Well, one advantage is the ECU can better control throttle in situations where this may be useful, for example with traction control. The ECU could reduce throttle, where as with a conventional system, if your foot is on the gas pedal, the throttle valve is open. Also, it eliminates some of the moving parts and connections required (though it does add some as well). I think there is a bit of a lag though letting off the gas, which I've noticed on my girlfriend's Mazda 3.
All these years on, I'm still sharing these videos with family members to give a nice and concise explanaton of what everything car-related does! Thanks for all your efforts.
Fantastic Video Jason 😀 Really shows people the basic fundamentals behind throttle control and also provides an inside when researching to purchase a Performance Throttle Controller
Maybe, but unfortunately there are plenty of people who tried to take advantage of the situation and lied about acceleration problems (the Prius guy in California comes to mind immediately). Haven't really looked into it lately, but I thought I saw some closure on Toyota's end that disproved nearly all of the claims. They settled because it's the world we live in, people are lawsuit happy and you have to do something about it.
If the engine speed matches the speed of the transmission (which is driven by wheel speed) for a set gear, then you do not need a clutch to shift the gears, as they are rotating in unison at the same speed. See my video on clutches if you have trouble picturing this.
I don't know if it's a step motor or not, but regardless the valve and motor are connected. Even if it is not direct (shaft of motor is axis of rotation for valve) it's still entirely controlled by the motor, so it wouldn't really make a difference. As far as reliability, drive by wire is very common now, so I'd say reliability is fine.
Well, some claims were that the gas pedal physically got stuck on the floor mat. I believe modern cars are incorporating kill switches. Regardless, you can always put your car in neutral; and brakes should overpower engines 99.999% of the time.
Always get to learn a lot from your videos. A good amount of my knowledge and understanding on automobiles have come from your videos, and I really thank you for that. But I have a question in regards with the Drive By Throttle setup. Why does the motorcycle/car, having a Drive By Wire, kill the engine when the throttle pedal/ throttle opened up all the way??
Ive been searching all over the web, and cannot find any data as to why they switched all vehicles over to this.....which kind of scares me a little. How is this better? How does this make a car better,safer,use less gas, etc etc. and are those improvement worth all the extra complications involved? I mean, other improvements made sense.... fuel injection= more power, less fuel, less maintenance The improvements like distributor-less ignition, etc. Okay, those were all worth while improvments, some things got more complex, but the pay off was worth it. How is replacing a simple cable, and lever mechanism.......with a gas pedal sensor, wiring, interface to the computer, more wiring, a motor, a gear set, and linkage to the throttle body making some profound improvement? They took a design that was pretty much perfectly fine, and made it have like 10x more points of failure, for what reason? What improvement did this make?
Michael G It allows the computer to directly control the throttle. From a safety perspective, this adds a lot of value as you can cut power in scenarios where traction is lost or the vehicle is unstable. Makes cruise control much more simple as well, as it removes the need for an actuator to pull on the cable. I'm a fan of mechanical systems, and would certainly prefer the old method from a response standpoint, but I think it's a valid mechanism.
Engineering Explained. It doesn't really make cruise control "much more" simple. Electronic cruise control pretty much is the same thing as an electronic throttle body, except the motor unit isn't attached to the throttle body itself and is instead located away and attached via another throttle cable. BUT, yes it does make sense from the stand point of modern system on a car now days do require computer controlled throttle manipulation, such as traction control, etc.
+Engineering Explained I have a drive-by-wire throttle car, and there is a considerable delay in engine response. It feels exactly like I don't have true control over the engine; it's annoying. I have to push the throttle pedal more than twice the distance required in car with a traditional mechanical linkage to achieve the same rate of acceleration. The two cars referenced are almost identical in horsepower.
+Michael G Put aside all the probable pros that electronic throttle has, one of the main reason it's used by most cars nowadays is the manufactures and dealers can have one more part that requires changing which means $$$(more expensive) to them, which unfortunately do break down, and I think this is the reason you cant find no clue on internet because those businessmen are trying to hide their dirty secret(s).
in the diagram you could have showed what flows between the position-sensor and ECM. Is it a packet of digital info (CAN packets) on the position of pedal , or is it an analogue varying voltage ?
I like the cable because one it wasn't completed second you could rev the engine from the engine bay and not keep going back to the driver side to rev it. If you were working on a car it would be easy from there. And also cheap to maintain such as if something went wrong it would be either the cable which is cheap or the flaps inside which would be easy to open up the this electronic one.
I bought a"SPRINT BOOSTER" for my A4. It made a world of difference. The sprint booster works on a selector switch which tricks the ECU. The sprint booster tells the pedal sensor that it is at a different position then it actually is. This allows the ECU to open the Butter fly valve to 15-30% more while under normal acceleration. When this happens the ECU thinks the pedal is being pushed harder that it actually is throughout the standard acceleration band pushing the motor to work harder faster.
(addition to ur session), From the pedal sensor value the ECU calculates the torque demand from driver, in turn calculates the air mass required to achieve that torque demand. In order to allow that much air charge/mass into combustion chamber,ECU calculates what should be the position of the sensor and controls the electronic throttle valve (EGAS). Its a complete closedloop system works well with the help of MAP&MAF sensors. Good Job.! Keep doing Please have a session in Torque coordination.:)
you are tha best at explaining to tha simple and tha seasoned. 'that is true wisdom' .thanx you for being thorough and curt ... you are my virtual teacher ..
I don't know the data but my gf's Mazda 3 has 40,000 miles and hasn't had any issues with it. Keep in mind the movements are relatively slow, and the "distance" of rotation is very small. I don't think the motors are really working very hard at all.
I wouldn't say it's the worst haha. It has it's purposes, though I'll admit I'm not a fan of it in my gf's car. It floats the throttle when you're switching gears.
Thanks for the video. I was fighting myself to find the throttle wire to manually gas up my engine so I can hear my new muffler. I guess my car has the ETC system so now it makes sense that I was not able to find it. My car was made in 2005 by the way.
And the reaction time on electric acceleration its 0.5 0.8 seconds after you push the pedal acceleration but the acceleration by cable its instant . The cable its good . I have right ?
well explained.just asking if it is the quantity of fluid entering the cylinder which varies the speed or the frequency of the fluid entering the cylinder?
Is a drive by wire system less reliable than a normal cable operated system? I say this because today car manufacturers are making cars pretty much disposable. You can't really see cars today going for more than a number of years trouble free, but you can see cars of the late 90s and before still running trouble free.
holes are sometimes put on throttle blades to help a car idle based on what i understand. in any case, throttle blades should always completely close when off the gas, because then the iac valve comes into play to let the engine breath at idle.
how the resistance feel on pedal works for drive by wire model cars. What my precise question is actually the resistance that we feel when we press the gas pedal. how is that works. I would assume either a spring against which we are pressing the pedal which gives a resistance effect OR the ETC(electronic throttle control) generates a resistance feel. I would be very glad if you kindly share this information.
The reason why car manufacturers probably went the drive by wire route is that it saves space by eliminating cruise control cable actuators which can cost $200-$400. Also, you're dealing with less maintenance with cable adjustments and grime that gets into cable linkages and what not. I do agree with the lag in throttle response with drive by wire, but some car manufacturers got their stuff down and stand alone ecus can fix this I'm sure.
question. Have one of those in my 2005 Hyundai Sante Fe and it has issues. Where, among all that stuff, am I likely to find a problem causing the acceleration to surge or stop inappropriately? thanks.
2007 Silverado. I've seen it myself when I cleaned the throttle body. I've removed the blade before, and I clearly saw that the hole was meant to be there. I am the original owner. No vortecs are drive by wire.
I hope you can help. will adding a aftermarket throttle controller such has Apexi over heat the ECU . i have a 2nd gen lexus is350 and read that this is the case. thanks
Wish all manufacturers can do it right. I'm learning how to drive in a 2015 Kia Sportage and the throttle response is terrible. Not only that, you have to delay your throttle engagement from a complete stop to start moving without any jerks. Even if you are progressively pressing in the throttle, the throttle body ignores that transition if done too quickly. Also, the ecu gets confused sometimes when I ask to accelerate heavily. Even when pressing the throttle all the way, it sometimes refuses to open the throttle body all the way and it refuses to shift to a lower gear. I find myself being stuck at around 2000rpm with my foot all the way down. Going 40-60mph in 5 seconds.
Hi, Do electrical gas pedals have to be re calibrated after 10+ years? My pedal isn't very responsive, its laggy, but when I push it down hard it goes, In my opinion the throttle cable is much better,, My car has been tested at mechanics, they can't find anything wrong with the car,plus no fault codes are coming up,
can you extend these drive by wire cables without adversley affecting its function and trigger points.? Converting my van from right hand drive to left. Need to relocate the pedal drive by wire cables by a method of extending original cables. Would this cause a problem.
1> when i press the gas pedal constantly with some force/Angle ,so the butterfly valve constantly open or just open/close - open/close?? 2> Which car model of Honda u used in d video? thanks in advance
Nothing you can say will convince me especially after the horror of the Toyota unintended acceleration deaths, that it's just as safe to allow your brake system to be controlled by electric impulses and complicated computer programs, instead of a physical cable connection.
hi. quick question: do you know if there are implementations of drive-by-wire where the butterfly valve is directly connected to a step motor? How reliable would that one be?
what I'm basically referring in my previous comment is that if your vehicle doesn't use drive by wire technology, you don't have to worry too much about the acceleration problem right?
Thanks for the response. Just one more question: Sometimes when I shift my car into neutral, the engine will go to idling for a couple seconds then rev to about 3000 RPM for a few seconds without me touching the gas pedal. Is this caused by the position sensor acting up, then telling the electric motor to open the throttle body, then the throttle position sensor senses the incongruence between the gas pedal and throttle body and then automatically adjusts the engine back to idling?
Hi man, great video. I recently found an issue with autodiagnostic tool in my Nissan Micra k12. Code description is P1126 -> Faulty Throttle Control Motor relay. My car doesn't accelerate over 2,5k RPM. It seems to be in safe (or limp) mode. I'm driving at
Why go through all that if the old cable works just fine? What are the comparo/ benefits/ pros & cons or the old and new? What if the electronic ever fail while driving, let's say, during acceleration (electronic control throttle) to avoid oncoming train or during braking (electronic control braking) to avoid hitting someone?
Can I remove the throttle body plug the cable back into the unit and then turn on the ignition. (not turn over the engine) then if I press the gas pedal will the butterfly open?
TBW likely shaves build time, and is intergrated into some traction control systems (will close butterfly to limit throttle and thus wheel spin) That said, I HATE it and it needs to go. Hell, there are aftermarket parts for many cars that can modify the signal, to try and speed up or slow down the butterfly action. Some cars with TBW have lazy throttles, others are damn touchy. I like my 06 scion xbo (throttle cable) but the newer xb has TBW and when my wife test drove one she hated it right away. Thank's scion, you screwed up several things with the second gen xb!
+rock IAC is way more reliable and only a fraction of the cost. Yes, I have replaced quite a few IAC's but Throttle Actuators are a common repair Item.
I can answer that. Because of predictive mapping. Faster than your foot can fully depress the pedal the ECU can measure in Milliseconds how far the pedal has moved. A map table is qued up in the ingition and injector tables for full throttle before the pedal is fully depressed. This is the end game they were looking for that only ultra fast standalone's and high end factory ECU'S can handle. A small pedal movement to throw out ingition and fueling maps faster than you can pysically depress the pedal. OR=Throttle Response.
is it possible to have a steering wheel throttle if your car has fly by wire throttle? like some type of squeeze lever? a few years back i think it was travis pastrana in the xgames. he broke his right foot & was in a cast. they had some type of throttle that was on the back side of the steering wheel so he could work the throttle with his fingers,for his rally cross car. i didn't get a good look at it, so i don't know if it was mechanical or FBW. any ideas on this???
So what advantages has this got to a convention cable pedal because from what i can tell there are no real advantages...just added weight for the motors and something just to wrong down the line
Great Idea, switch out a $20. cable that almost never breaks or fails, for an electric sensors system which costs $110. to replace when it ever fails.....
Electronic throttles offer so many advantages over cable. It's not about replacing when it breaks (which is rarer anyway). It's about traction control, emissions, etc.
You won't get a diagnosis for 110 bucks, much less parts and labor for any part of this system. Just like every thing else, when the warranty is gone, send it to the landfill.
Ha! It's a lovely concept except... It completely kills the throttle response, adds unnecessary complexity and increases manufacturing and maintenance cost once components start to fail. What on this flipping Earth was wrong with the darn throttle cable and a position sensor on the throttle body?
not only that, the throttle position is measured via a potentiometer, which basicaly means if the cable is damaged and making a short you basicaly have a stuck opoen throttle, that cant be unjammed secon of all, if you do happen to unplug it and replug it wrong, you basicaly invert it, means throttle on zero -> fullgas, throttle on full -> no gas
First you have to understand that this system incorporates the throttle control, idle air control, Traction control and limp mode and other strategies thus making it simpler for manufactures. It does not kill throttle response unless the manufacture programs it that way for efficiency. I can program the throttle to move faster than a cable based on request. You ever see the video of the Corvette leaving the line in 6th gear? This is the reason. They can request different throttle angles at different rpms thus making the system more efficient. Just as if you were climbing a long hill at 80% throttle. You don't necessary need to go faster, you are just trying to maintain your current speed. If you have a cable, your in a fixed system and it doesn't know this thus loading the engine more than needed. You need this for all autonomous vehicles. The future is now, not in the past. The "good ole days" are always dying. Keep up or get left behind
Auto manufacturers when coming up with ETC: - "How can we increase our vehicles' overall cost and complexity while at the same time decreasing throttle response?" - "Oh I know, let's replace the time tested throttle cable with a overly complicated computer system! It'll be SEWWWWW FAWNSEHHH"
how about the steering in drive by wire? i mean, please explain how drive by wire works to replace the steering from mechanically to electronically. thanks !
Wow, amazing. 13 years ago you compiled amazing episodes. I am now a fan and subscribed to your Channel
Well, one advantage is the ECU can better control throttle in situations where this may be useful, for example with traction control. The ECU could reduce throttle, where as with a conventional system, if your foot is on the gas pedal, the throttle valve is open. Also, it eliminates some of the moving parts and connections required (though it does add some as well). I think there is a bit of a lag though letting off the gas, which I've noticed on my girlfriend's Mazda 3.
The lag letting off the gas is rev hang
@@pilotaveryis rev hang is actually good or not?
All these years on, I'm still sharing these videos with family members to give a nice and concise explanaton of what everything car-related does! Thanks for all your efforts.
It's great that one of the Beatles taught me this 😂
justin bieber
Yeah yeah yeah
The car or the band
Young man your a good teacher, you explained this very well.
Fantastic Video Jason 😀
Really shows people the basic fundamentals behind throttle control and also provides an inside when researching to purchase a Performance Throttle Controller
Excellent explanation, thanks! This video has 11 years old!
Maybe, but unfortunately there are plenty of people who tried to take advantage of the situation and lied about acceleration problems (the Prius guy in California comes to mind immediately). Haven't really looked into it lately, but I thought I saw some closure on Toyota's end that disproved nearly all of the claims. They settled because it's the world we live in, people are lawsuit happy and you have to do something about it.
If the engine speed matches the speed of the transmission (which is driven by wheel speed) for a set gear, then you do not need a clutch to shift the gears, as they are rotating in unison at the same speed. See my video on clutches if you have trouble picturing this.
that's what truck divers do in american trucks that have to synchros
Check the "about me" page of my website, howdoesacarwork(dot)com. Also the "Future Plans" tab (under FAQs) may be of help.
Cheers!
I don't know if it's a step motor or not, but regardless the valve and motor are connected. Even if it is not direct (shaft of motor is axis of rotation for valve) it's still entirely controlled by the motor, so it wouldn't really make a difference. As far as reliability, drive by wire is very common now, so I'd say reliability is fine.
Well, some claims were that the gas pedal physically got stuck on the floor mat. I believe modern cars are incorporating kill switches. Regardless, you can always put your car in neutral; and brakes should overpower engines 99.999% of the time.
Correct, check out my video "gas pedals." I've got a more detailed description of how it works.
Can you link it, I can't seem to find the video 👍
Thanks my man.
Your explanations are great
You always make very, very good, sensible videos.
Thanks.
tfw i can't blip throttle for rev matching downshifts because the car has ETC and the ecu doesn't allow rapid RPM increase
What is ETC ?
@@dattarajraikar4841 Electronic traction control
@@dattarajraikar4841 Electronic Throttle Control
Ahh, didn't even think about that. Thanks.
Could be the A/C compressor turning on and off, or the cooling fans, which would alter your revs. But 3000 is pretty high so I'm not sure.
No, all cars can have it, and it can be used to adjust A/F ratio.
Always get to learn a lot from your videos. A good amount of my knowledge and understanding on automobiles have come from your videos, and I really thank you for that.
But I have a question in regards with the Drive By Throttle setup.
Why does the motorcycle/car, having a Drive By Wire, kill the engine when the throttle pedal/ throttle opened up all the way??
Ive been searching all over the web, and cannot find any data as to why they switched all vehicles over to this.....which kind of scares me a little.
How is this better? How does this make a car better,safer,use less gas, etc etc. and are those improvement worth all the extra complications involved?
I mean, other improvements made sense.... fuel injection= more power, less fuel, less maintenance The improvements like distributor-less ignition, etc. Okay, those were all worth while improvments, some things got more complex, but the pay off was worth it.
How is replacing a simple cable, and lever mechanism.......with a gas pedal sensor, wiring, interface to the computer, more wiring, a motor, a gear set, and linkage to the throttle body making some profound improvement? They took a design that was pretty much perfectly fine, and made it have like 10x more points of failure, for what reason? What improvement did this make?
Michael G It allows the computer to directly control the throttle. From a safety perspective, this adds a lot of value as you can cut power in scenarios where traction is lost or the vehicle is unstable. Makes cruise control much more simple as well, as it removes the need for an actuator to pull on the cable. I'm a fan of mechanical systems, and would certainly prefer the old method from a response standpoint, but I think it's a valid mechanism.
Engineering Explained. It doesn't really make cruise control "much more" simple. Electronic cruise control pretty much is the same thing as an electronic throttle body, except the motor unit isn't attached to the throttle body itself and is instead located away and attached via another throttle cable.
BUT, yes it does make sense from the stand point of modern system on a car now days do require computer controlled throttle manipulation, such as traction control, etc.
+Engineering Explained I have a drive-by-wire throttle car, and there is a considerable delay in engine response. It feels exactly like I don't have true control over the engine; it's annoying. I have to push the throttle pedal more than twice the distance required in car with a traditional mechanical linkage to achieve the same rate of acceleration. The two cars referenced are almost identical in horsepower.
+Michael G Put aside all the probable pros that electronic throttle has, one of the main reason it's used by most cars nowadays is the manufactures and dealers can have one more part that requires changing which means $$$(more expensive) to them, which unfortunately do break down, and I think this is the reason you cant find no clue on internet because those businessmen are trying to hide their dirty secret(s).
Charlie Zhu it's really the government. If they didn't intervene, we would all still be driving flat-head v8s burning leaded gasoline.
Omg I had no idea you did this channel 8 years ago too!
in the diagram you could have showed what flows between the position-sensor and ECM. Is it a packet of digital info (CAN packets) on the position of pedal , or is it an analogue varying voltage ?
I like the cable because one it wasn't completed second you could rev the engine from the engine bay and not keep going back to the driver side to rev it. If you were working on a car it would be easy from there. And also cheap to maintain such as if something went wrong it would be either the cable which is cheap or the flaps inside which would be easy to open up the this electronic one.
I bought a"SPRINT BOOSTER" for my A4. It made a world of difference. The sprint booster works on a selector switch which tricks the ECU. The sprint booster tells the pedal sensor that it is at a different position then it actually is. This allows the ECU to open the Butter fly valve to 15-30% more while under normal acceleration. When this happens the ECU thinks the pedal is being pushed harder that it actually is throughout the standard acceleration band pushing the motor to work harder faster.
(addition to ur session), From the pedal sensor value the ECU calculates the torque demand from driver, in turn calculates the air mass required to achieve that torque demand. In order to allow that much air charge/mass into combustion chamber,ECU calculates what should be the position of the sensor and controls the electronic throttle valve (EGAS). Its a complete closedloop system works well with the help of MAP&MAF sensors.
Good Job.! Keep doing
Please have a session in Torque coordination.:)
you are tha best at explaining to tha simple and tha seasoned. 'that is true wisdom' .thanx you for being thorough and curt ... you are my virtual teacher ..
Your videos are great! Learning a lot just by watching them. Keep it up!! Subscribed!!!!!!
Great explanation you made my night
I don't know the data but my gf's Mazda 3 has 40,000 miles and hasn't had any issues with it. Keep in mind the movements are relatively slow, and the "distance" of rotation is very small. I don't think the motors are really working very hard at all.
Could be. I've never seen holes myself but it would achieve the same effect.
Excellent, simple explanation. Thanks
Still a great explanation in 2023. Thanks.
thanks you are a really good teacher..................
You're great, thank you!!
I wouldn't say it's the worst haha. It has it's purposes, though I'll admit I'm not a fan of it in my gf's car. It floats the throttle when you're switching gears.
Mazda3
Thanks for the video. I was fighting myself to find the throttle wire to manually gas up my engine so I can hear my new muffler. I guess my car has the ETC system so now it makes sense that I was not able to find it. My car was made in 2005 by the way.
And the reaction time on electric acceleration its 0.5 0.8 seconds after you push the pedal acceleration but the acceleration by cable its instant . The cable its good . I have right ?
Yes popa, you have it right.
❤ thank very much for your message about engine
well explained.just asking if it is the quantity of fluid entering the cylinder which varies the speed or the frequency of the fluid entering the cylinder?
The main purpose for the throttle position sensor is actually a feedback loop. The loop is needed for accurate control of the butterfly valve.
Great explanation.
Is a drive by wire system less reliable than a normal cable operated system? I say this because today car manufacturers are making cars pretty much disposable. You can't really see cars today going for more than a number of years trouble free, but you can see cars of the late 90s and before still running trouble free.
Yes. It is way less reliable, less respnsive, and extremely expensive/difficult to repair.
holes are sometimes put on throttle blades to help a car idle based on what i understand. in any case, throttle blades should always completely close when off the gas, because then the iac valve comes into play to let the engine breath at idle.
Could we have an update on this system with reference to the double TPS and double PPS and safety measures that are used.
Hello i just wanted to ask why my RPM doesnt go up. Though the distributor coil is already brand new?. My car is mazda 323
how the resistance feel on pedal works for drive by wire model cars. What my precise question is actually the resistance that we feel when we press the gas pedal. how is that works.
I would assume either a spring against which we are pressing the pedal which gives a resistance effect
OR
the ETC(electronic throttle control) generates a resistance feel. I would be very glad if you kindly share this information.
it has a spring inside
Easy! Integrating other functions that access and manipulate throttle are much easier to implement.
The reason why car manufacturers probably went the drive by wire route is that it saves space by eliminating cruise control cable actuators which can cost $200-$400. Also, you're dealing with less maintenance with cable adjustments and grime that gets into cable linkages and what not. I do agree with the lag in throttle response with drive by wire, but some car manufacturers got their stuff down and stand alone ecus can fix this I'm sure.
question. Have one of those in my 2005 Hyundai Sante Fe and it has issues. Where, among all that stuff, am I likely to find a problem causing the acceleration to surge or stop inappropriately? thanks.
I am looking to get into automotive engineering and I was wondering what u majored in and where u went to school. Thanks
Nothing beats the traditional cable throttle
2007 Silverado. I've seen it myself when I cleaned the throttle body. I've removed the blade before, and I clearly saw that the hole was meant to be there. I am the original owner. No vortecs are drive by wire.
I hope you can help. will adding a aftermarket throttle controller such has Apexi over heat the ECU . i have a 2nd gen lexus is350 and read that this is the case. thanks
Wish all manufacturers can do it right. I'm learning how to drive in a 2015 Kia Sportage and the throttle response is terrible. Not only that, you have to delay your throttle engagement from a complete stop to start moving without any jerks. Even if you are progressively pressing in the throttle, the throttle body ignores that transition if done too quickly. Also, the ecu gets confused sometimes when I ask to accelerate heavily. Even when pressing the throttle all the way, it sometimes refuses to open the throttle body all the way and it refuses to shift to a lower gear. I find myself being stuck at around 2000rpm with my foot all the way down. Going 40-60mph in 5 seconds.
you should make a video on what a two step rev limiter is, how it works and what its good for !!!
Hi,
Do electrical gas pedals have to be re calibrated after 10+ years?
My pedal isn't very responsive, its laggy, but when I push it down hard it goes,
In my opinion the throttle cable is much better,,
My car has been tested at mechanics, they can't find anything wrong with the car,plus no fault codes are coming up,
Does the throttle contoller wont give too much stress to cvt transmission while driving/usage?
Hi. What would cause horrible delay/no power when i press drive by wire pedal little amounts and slowly? 2013 volkswagen passat v6
can you extend these drive by wire cables without adversley affecting its function and trigger points.? Converting my van from right hand drive to left. Need to relocate the pedal drive by wire cables by a method of extending original cables. Would this cause a problem.
Could you please talk about wind Booster and similar products,
Thanks for the videos 😀
1> when i press the gas pedal constantly with some force/Angle ,so the butterfly valve constantly open or just open/close - open/close??
2> Which car model of Honda u used in d video?
thanks in advance
1. It opens at an angle, relative to how much you press the gas pedal.
2. It's a 1999 Acura Integra
u mean steady in angle
right?
Correct. It's not a simple open/close valve.
thanks
Can you please do a video on throttle controllers?
Hi I have a question can I used my electric throttle controller with spot mode gear on my car or if I do this can damage my car ?
You should do a video on CAI's and how they work
Nothing you can say will convince me especially after the horror of the Toyota unintended acceleration deaths, that it's just as safe to allow your brake system to be controlled by electric impulses and complicated computer programs, instead of a physical cable connection.
hi. quick question: do you know if there are implementations of drive-by-wire where the butterfly valve is directly connected to a step motor? How reliable would that one be?
Would there be lag created... like from the motor not spinning/accelerating fast enough, etc.?
It is possible, yes, all depends on how the motor is tuned with the throttle pedal.
Engineering Explained I see... Thank you!
+Engineering Explained so how can I improve the throttle response?? its lagging and it has a 1 sec delay
sam ali OMG... A 1-second delay is no joke!!! I hope you do find a way to deal with it!
what I'm basically referring in my previous comment is that if your vehicle doesn't use drive by wire technology, you don't have to worry too much about the acceleration problem right?
Can you explane ”Dethrottling” on one of your next videos?
Thanks for the response.
Just one more question: Sometimes when I shift my car into neutral, the engine will go to idling for a couple seconds then rev to about 3000 RPM for a few seconds without me touching the gas pedal. Is this caused by the position sensor acting up, then telling the electric motor to open the throttle body, then the throttle position sensor senses the incongruence between the gas pedal and throttle body and then automatically adjusts the engine back to idling?
Please do an explanation on compressor maps! Thanks for the good videos!
Compressor maps?
Hi man, great video.
I recently found an issue with autodiagnostic tool in my Nissan Micra k12.
Code description is P1126 -> Faulty Throttle Control Motor relay.
My car doesn't accelerate over 2,5k RPM. It seems to be in safe (or limp) mode. I'm driving at
DIFFERENT QUESTION; I don;t have cruise control on my car (1992 Ford Tempo V6) but will I able to install one?
Awesomeness
Why go through all that if the old cable works just fine? What are the comparo/ benefits/ pros & cons or the old and new? What if the electronic ever fail while driving, let's say, during acceleration (electronic control throttle) to avoid oncoming train or during braking (electronic control braking) to avoid hitting someone?
Can I remove the throttle body plug the cable back into the unit and then turn on the ignition.
(not turn over the engine) then if I press the gas pedal will the butterfly open?
May you add more lessons on the MPFI
a video showing how to modify a car and make it wire to cable would be great!
I’m glad that’s easier to swap out than you think.
Hi, am having a high idle speed on my 1az recently overhauled, when I disconnect the wire tab idle normalizes. What could be the problem thanks
TBW likely shaves build time, and is intergrated into some traction control systems (will close butterfly to limit throttle and thus wheel spin) That said, I HATE it and it needs to go. Hell, there are aftermarket parts for many cars that can modify the signal, to try and speed up or slow down the butterfly action. Some cars with TBW have lazy throttles, others are damn touchy. I like my 06 scion xbo (throttle cable) but the newer xb has TBW and when my wife test drove one she hated it right away. Thank's scion, you screwed up several things with the second gen xb!
Hey, I have a question: does the ECM prevent engine lugging by limiting the opening of the valve even if you floor the gas pedal on a high gear?
Yes, precisely. That is actually one of the very few advantages of the electronic throttle, aside from traction & cruise control.
@@luipars Correct me if I'm wrong: so it's technically not possible to lug an engine, regardless if it has forced induction or not
Do you have anything on drive by wire steering?
Is it common for the butterfly motor to go bad? It seems to me that constant moving back and forth would cause it to go bad quickly
Can somebody explain to me why this is better? Seems so much more complicated and prone to repair than a simple cable-operated throttle.
Alec Minnick Because "fuel savings"..........that aren't worth diddly squat.
+rock IAC is way more reliable and only a fraction of the cost. Yes, I have replaced quite a few IAC's but Throttle Actuators are a common repair Item.
+Ralf V And yes out comes the argument that DBW is smoother, easier on Gas and the Catalyst System. Whatever!
I can answer that. Because of predictive mapping. Faster than your foot can fully depress the pedal the ECU can measure in Milliseconds how far the pedal has moved. A map table is qued up in the ingition and injector tables for full throttle before the pedal is fully depressed. This is the end game they were looking for that only ultra fast standalone's and high end factory ECU'S can handle. A small pedal movement to throw out ingition and fueling maps faster than you can pysically depress the pedal. OR=Throttle Response.
Q. can we change different dbw throttle body from different vehicle for example BMW to Lexus etc.. i am planning to swap much bigger DBW TB
is it possible to have a steering wheel throttle if your car has fly by wire throttle? like some type of squeeze lever? a few years back i think it was travis pastrana in the xgames. he broke his right foot & was in a cast. they had some type of throttle that was on the back side of the steering wheel so he could work the throttle with his fingers,for his rally cross car. i didn't get a good look at it, so i don't know if it was mechanical or FBW. any ideas on this???
Absolutely, it could be done either way (fly by wire or direct).
So what advantages has this got to a convention cable pedal because from what i can tell there are no real advantages...just added weight for the motors and something just to wrong down the line
Do a video on shift by wire auto trans gear selectors
So a throttle position sensor is only in cars with a drive by wire (or electronic throttle) system?
Great Idea, switch out a $20. cable that almost never breaks or fails, for an electric sensors system which costs $110. to replace when it ever fails.....
Electronic throttles offer so many advantages over cable. It's not about replacing when it breaks (which is rarer anyway). It's about traction control, emissions, etc.
You won't get a diagnosis for 110 bucks, much less parts and labor for any part of this system. Just like every thing else, when the warranty is gone, send it to the landfill.
$110 if your lucky...
Ha! It's a lovely concept except... It completely kills the throttle response, adds unnecessary complexity and increases manufacturing and maintenance cost once components start to fail.
What on this flipping Earth was wrong with the darn throttle cable and a position sensor on the throttle body?
not only that, the throttle position is measured via a potentiometer, which basicaly means if the cable is damaged and making a short you basicaly have a stuck opoen throttle, that cant be unjammed secon of all, if you do happen to unplug it and replug it wrong, you basicaly invert it, means throttle on zero -> fullgas, throttle on full -> no gas
First you have to understand that this system incorporates the throttle control, idle air control, Traction control and limp mode and other strategies thus making it simpler for manufactures. It does not kill throttle response unless the manufacture programs it that way for efficiency. I can program the throttle to move faster than a cable based on request. You ever see the video of the Corvette leaving the line in 6th gear? This is the reason. They can request different throttle angles at different rpms thus making the system more efficient. Just as if you were climbing a long hill at 80% throttle. You don't necessary need to go faster, you are just trying to maintain your current speed. If you have a cable, your in a fixed system and it doesn't know this thus loading the engine more than needed. You need this for all autonomous vehicles. The future is now, not in the past. The "good ole days" are always dying. Keep up or get left behind
Old cable and manual throttle control fail to pass modern environment certification requirements.
@@jaxnaturals yes but they all are designed to have 1 second lag so…
@@stevenpham1961 your missing the point.
Auto manufacturers when coming up with ETC:
- "How can we increase our vehicles' overall cost and complexity while at the same time decreasing throttle response?"
- "Oh I know, let's replace the time tested throttle cable with a overly complicated computer system! It'll be SEWWWWW FAWNSEHHH"
Correct. Planned obsolescence.
The reason is to allow the cruise control function to exist.
Soo many WHETAHDS
Are these wires difficult to replace at home?
What tells the injectors to increase fuel output in this set up. how ids the TPS linked to ther fuel system?
how about the steering in drive by wire?
i mean, please explain how drive by wire works to replace the steering from mechanically to electronically. thanks !
I have a problem with my plate not moving when I increase and decrease gas pedal.
And my ecu is not throwing a fault?
Any thoughts.
It moves manually.
But is set on the horizontal position.
Excellent enthusiasm, but did you really yell?