Drive by Wire
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http://www.pitt.edu/~tas36/interesting%20event.html
this gives you an idea of drive by wire. But the idea of drive by wire is to replace the mechanical linkages with sensors that will do the job. For example Instead of having a throttle cable control your throttle movement, there will be a sensor and actuator that will sense how much pedal movement there is and will send signals to a computer which in turn will open the throttle valve. It is supposed to be used to delete human error. Also save weight. here is another good example of electronic throttle by wire system
http://www.picotech.com/auto/applica...e_control.html
this is why luxury cars are so expensive. They use 10X more electronics then regular cars. Another reason why they are always in the shop for repairs.
this gives you an idea of drive by wire. But the idea of drive by wire is to replace the mechanical linkages with sensors that will do the job. For example Instead of having a throttle cable control your throttle movement, there will be a sensor and actuator that will sense how much pedal movement there is and will send signals to a computer which in turn will open the throttle valve. It is supposed to be used to delete human error. Also save weight. here is another good example of electronic throttle by wire system
http://www.picotech.com/auto/applica...e_control.html
this is why luxury cars are so expensive. They use 10X more electronics then regular cars. Another reason why they are always in the shop for repairs.
Joined: Aug 2001
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From: Gaithersburg, MD
Rep Power: 412 streetglower gave a good eplanation. The more electronics, the costlier the repair. In addition, it is hard to use throttle steer with DBW which means it isn't going to be liked by racers. I can completely see hardcore dudes pulling it out and replacing it with manual throttle control.
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From: Atlanta Ga
Rep Power: 307 Some people have replaced the TSX DBW system with the RSX Drive by linkage system to go boosted. Apparently, the drive by wire system allows you to fall out of revs too much becasue of the actuator lag which is not a good thing. Its said that the SI's system is better than the TSX and you can keep revs better
Most all cars are going DBW now. In many ways, it's easier & cheaper for the MFG. The throttle, Idle control & cruise control can all be combined in one piece of hardware. Also, it allows them to control the maximum rate of change of throttle which makes the emissions easier to control.
However, it's going to be a real PITA to mod cars with DBW. The factory ECU now has throttle control over your engine and if it thinks you are going too fast, or revving too high, it will start closing the throttle on you.
However, it's going to be a real PITA to mod cars with DBW. The factory ECU now has throttle control over your engine and if it thinks you are going too fast, or revving too high, it will start closing the throttle on you.
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Rep Power: 315 It also reduces emissions. Between shifts, the ETB (electronic throttle body) will close partially to reduce emissions and reduce the amount of fuel being used therfore increasing fuel economy and being enviormently friendly.
Many new cars are built this way including the 2005 Mustang and 2005 GTO
Many new cars are built this way including the 2005 Mustang and 2005 GTO
Alot of the aftermarket companies are staying away from modifying the DBW components due to the increased potential liability.
Just imagine when little 16yr old johnny drives his car into a lightpole while doing a ricer fly by and then trys to save his *** by telling his mommy that he was driving the speed limit and the car just "started accelerating" and he crashed. Any aftermarket part that is within 5 feet of the DBW system is going to get blamed by little johnnys parents and then the mfg is going to get dragged into court and have to prove that thier product didn't cause the problem.
Just imagine when little 16yr old johnny drives his car into a lightpole while doing a ricer fly by and then trys to save his *** by telling his mommy that he was driving the speed limit and the car just "started accelerating" and he crashed. Any aftermarket part that is within 5 feet of the DBW system is going to get blamed by little johnnys parents and then the mfg is going to get dragged into court and have to prove that thier product didn't cause the problem.
Joined: Sep 2002
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From: NV
Rep Power: 811 haha yup didn't think of that one. but unfortunate. when i drove the sedan, it felt like the "cable" was really loose. Very little response if you press the gas in gear. You have to downshift to make the car go.
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From: Medina Ohio
Rep Power: 318 The throttle isn't that bad... It's when they have drive by wire steering you want to stay away form, one of the BMW's has it, everybody has given a negative review. I drove the sedan, thought it was okay. Felt like it was kicking in to help save gas, hence the reason it get 40MPG highway. 
It does the job.
It does the job. 
I personaly have drivin' many cars with a DBW, and am not impresed. Toyota, BMW, Mercedes, Jaguar, Acura, Honda, and some more... Maby I'm old school on this, but many of you seem to agree. I just dont like it. I work in the automotive indistry, and can say from personal account, about 75%-80%, of the mechanical parts replaced on newer cars are electronic. This DBW phase everyone is going to scares me a little. I think it may be a little premature in it's release to the masses.
But thats just MHO.
But thats just MHO.
I just burnt my tongue
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From: Chino Hills, CA
Rep Power: 319 my 03 infiniti Q45 is dbw but i dont mind it...its fast as hell anyways...but than again when ur in a sticky situation it cuts off throttle so u have a less chance of crashing
I dont think it's premature, I just think it sucks.
The 1996 and later NSX's have had them and alot of the newer Acuras have had them for a few years. So Honda has had a production DBW for 10 years now. I'm not worried about failures, I just would rather have a cable.
The 1996 and later NSX's have had them and alot of the newer Acuras have had them for a few years. So Honda has had a production DBW for 10 years now. I'm not worried about failures, I just would rather have a cable.
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