super laubo
Member
so how does the drive by wire system work? also, what are the benefits over a TB?
Drive By Wire
- Thread starter Zoom Zoom Zoom
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You still have a throttle body just no throttle cable. Instead of a cable attached to the pedal and going to the TB that has been eliminated. There is now only a position sensor on the throttle pedal which sends a signal to a servo on the throttle body that moves the butterfly proportionant to the amount the pedal was moved.
mobomelter
Member
- :
- 2004 Civic Si
another question is the steering on the 3 normal rack and pinion? because all this use of "drive-by-wire" which in my mind means no steering colum is confusing me.
goldwing2000
OG Mazda Mafia
- :
- 2004 Mazda3s Hatch; 346,000 mi (sold)
2024 CX-5 CE; 7,500 mi (so far)
mobomelter said:
The only "by wire" technology is the gas pedal. It's a car, not an airplane! You still have a normal steering system and a normal braking system. The only difference between our steering and any other car is the power assist. Most cars have a mechanical hydraulic pump that runs off the engine via a belt. The Mazda3 has an electric motor that spins the pump so there is less hp loss from the FEAD.
funnylittlman
Member
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- Protege
dvtib said:
I figured as much... thnx
There are two separate and very different terms being used here.
Drive-by-wire is the "no steering column" thought that was mentioned earlier. It means that all of the steering controls are electronic, instead of today's mechanical controls. Drive-by-wire is a relatively new idea, made big by GM 2 or 3 years ago with a concept, the first to explore its potential. They took the idea to an extreme, completely eliminating the design boundaries that cars with mechanical steering have (it also helped that the same car was pushing small, fuel cell powered electric engines, one for each wheel for a near perfect 4WD and weight distribution setup). Possibilities are huge and mostly unclear. It will take awhile for designers, manufacturers, and consumers, to get the typical car image that we all learn of as kids out of their minds. There was plenty of news on it then, but GM admitted that it wasn't realistic yet because of fuel cell technology minituarization and costs. They said back then it would be ready by 2010, I say it's 2015+ now. No car on the market is drive-by-wire.
Throttle-by-wire is becoming more common in car's today. It involves using electrical sensors and controls instead of traditional mechanical connections. Honestly, I don't know much about throttle-by-wire benefits, other than it opens up more design possibilities and is one more thing a computer can monitor/help with. "By-wire" just means whatever it is referring to is electronically sensed and relayed instead of there being a mechanical connection.
Drive-by-wire is a technology that people will love and hate. It opens the doors for Minority Report type transportation where you don't drive the car, you are being driven. Transportation is quick, efficient, and comfortable. A computer could monitor all aspects of the cars movement to help or even replace the driver in many tasks.
Don't like driving to work in the morning? Let the car drive.
Donate your lunch money to science for the future today (or steal the nerd's money (chair) and keep your full driving experience).
Drive-by-wire is the "no steering column" thought that was mentioned earlier. It means that all of the steering controls are electronic, instead of today's mechanical controls. Drive-by-wire is a relatively new idea, made big by GM 2 or 3 years ago with a concept, the first to explore its potential. They took the idea to an extreme, completely eliminating the design boundaries that cars with mechanical steering have (it also helped that the same car was pushing small, fuel cell powered electric engines, one for each wheel for a near perfect 4WD and weight distribution setup). Possibilities are huge and mostly unclear. It will take awhile for designers, manufacturers, and consumers, to get the typical car image that we all learn of as kids out of their minds. There was plenty of news on it then, but GM admitted that it wasn't realistic yet because of fuel cell technology minituarization and costs. They said back then it would be ready by 2010, I say it's 2015+ now. No car on the market is drive-by-wire.
Throttle-by-wire is becoming more common in car's today. It involves using electrical sensors and controls instead of traditional mechanical connections. Honestly, I don't know much about throttle-by-wire benefits, other than it opens up more design possibilities and is one more thing a computer can monitor/help with. "By-wire" just means whatever it is referring to is electronically sensed and relayed instead of there being a mechanical connection.
Drive-by-wire is a technology that people will love and hate. It opens the doors for Minority Report type transportation where you don't drive the car, you are being driven. Transportation is quick, efficient, and comfortable. A computer could monitor all aspects of the cars movement to help or even replace the driver in many tasks.
Don't like driving to work in the morning? Let the car drive.
Donate your lunch money to science for the future today (or steal the nerd's money (chair) and keep your full driving experience).
Last edited:
goldwing2000
OG Mazda Mafia
- :
- 2004 Mazda3s Hatch; 346,000 mi (sold)
2024 CX-5 CE; 7,500 mi (so far)
tgv121281 said:
"Feel a dealy"? (scratch)
Anyway, I would say you'd have to swap ECU with a Euro car that has a cable already. These things are pretty much sealed for good.
you will feel a delay even with a cable system from the point it takes the TB to open and the ECU to register the air flow change....to get INSTANT responce you would need alot of work....such as ITB's and really good engine managment. My buddies civic with a B16B2 swap and ITB's still has some delay from the point you step on it and the engine responds....a good driver just has to anticipate this delay and learn to work around it.
goldwing2000
OG Mazda Mafia
- :
- 2004 Mazda3s Hatch; 346,000 mi (sold)
2024 CX-5 CE; 7,500 mi (so far)
Oh! Delay!
Sorry about that. (hand)
Sorry about that. (hand)
goldwing2000 said:
You would have to do alot more than that. Not only does swapping ECU's have you towing your car to the dealer the get charged to reset the PATS. You would have to have all of the wiring and the senors from that car. With the drive-by-wire we have a few of the senors built into the unit. I'm sure TPS is one.
Like I stated it is a seriously expensive and too much work to even justify it.
Actully the delay stated below is not correct either. How does a cable system have a delay? It doesn't you push the peddle and the throttle plate opens. The delay is in the ECU....throttle tip-in. This can be remove when the SCT comes out.
i drove a prius a while back...(a friend was a toyota dealer) and i thought he told me that car was drive by wire... steering, throttle, and brake were all controlled by sensors and processed and then controled by servo's adj the tb, steering, or calipers accordingly.... i could be wrong, i mean he was a car dealer, but thats what he siad? i will say the car did not have any road feed back at all, and i hated it... though i did say i would imagine most chicks would love it....
mobomelter
Member
- :
- 2004 Civic Si
man the prius is a huge piece of s***. i drove one and you would switch lanes and the steering would keep jumping around.
