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  1. DJShortyG

    OLED Lighting in Automobiles

    Pat, Again you are pointing out the pros of an LED but not the cons. Yes LEDs are proven, cheap, simple (the LED not the electronics running it), and durable, but they are not as small as and OLED light source could be, they generate heat (especially when over driven to be brighter), they are...
  2. DJShortyG

    OLED Lighting in Automobiles

    Pat, Your suggestion is completely legitimate, and as long as we do not need lots of light then it works extremely well. The harder part is the electronics that drive the LED and the LED itself are not small and space is a concern is something like a door handle. Also the fact that the LED...
  3. DJShortyG

    OLED Lighting in Automobiles

    bershire, You are correct that it could mean replacing the whole part, but if a single OLED pixel fails you would be hard pressed to see it. The nice part about it is the electronics could b elsewhere in the car and just the OLED panel molded into the piece!
  4. DJShortyG

    OLED Lighting in Automobiles

    Okay, I have been tooling around with this idea and would love everyone's take on it: I know that a lot of work is being done on OLED Screens, especially flexible ones for use in Automotive. The manufacturing process is still expensive and unreliable, but it is definitely improving. I want to...
  5. DJShortyG

    Electromechanical Brake Question

    I do have to admit that the Automotive Industry in general is making some great and then some not so great decisions about the cars they manufacture. Honestly, they charge $2000 extra for a Chevy Cruze ECO and the most prominent change is low rolling resistance tires. They are adding what...
  6. DJShortyG

    Electromechanical Brake Question

    The teams understanding is that the newer Hybrids/EVs are capable of braking all the way down to around 7-10 mph using just the regenerative brakes and then blends in the friction brakes. This blending is where the big issue is. Due to a very slight lag in the Hydraulic system there is a...
  7. DJShortyG

    Electromechanical Brake Question

    By the way, btrueblood, a vehicle's safety systems can more than compensate for the kind of situation where only one caliper is actuating. EPAS and ESC have been able to right many of the situations that used to cause very dangerous and sometimes deadly accidents. Take it one step further and...
  8. DJShortyG

    Electromechanical Brake Question

    Clearly the industry has a long way to go and consumer acceptance of an electromechanical brake system is only one small piece of the puzzle. I guess that while the technology may be there, "Just because we can, doesn't mean we should." - OEM engineer If EMB was going to be launched on a car...
  9. DJShortyG

    Electromechanical Brake Question

    You are right MacGyverS, while I said small capacitor it would be a bank of them somewhere in the car with individual connections running to each wheel from an individual capacitor. Power consumption for a single caliper should be in the 14.4v - 30 amp area. At least that is what we are...
  10. DJShortyG

    Electromechanical Brake Question

    Just playing Devil's advocate here, but a couple of weeks ago our research team had the failure modes discussion with a leading ABS/ESC Tier 1 and the conversation was very interesting. Currently the only failure mode for hydraulic brakes is the eBrake or parking brake. In the event of a...
  11. DJShortyG

    Electromechanical Brake Question

    You are absolutely correct Norm, there is no single activation scheme that would work, and therefore we are having to work very closely with an AUTOSar software provider in order to help us integrate the EMB calipers into the control scheme. As for the feedback on the pedal, we are currently...
  12. DJShortyG

    Electromechanical Brake Question

    Trailer brakes were part of our investigation when we first started looking for a Brake by Wire system to use in our test vehicle. As you pointed out pwildfire they do not have the level of control that is required for a standard vehicle application. Aerospace was on our list too, but...
  13. DJShortyG

    Electromechanical Brake Question

    Thank you again everyone for your posts! The topics being discussed are the exact reasons we are performing the study. Our corporation is a supplier into the automotive industry and through the Business Development Department a road map/timeline to electronic brakes has been developed. Due to...
  14. DJShortyG

    Electromechanical Brake Question

    Thank you so much for your responses Mike and MacGyverS! We do realize that the consumer perception about these type of systems will play a huge role in their implementation. I guess our hypothesis is that the performance gains that can be made using by-wire systems should offset the risks...
  15. DJShortyG

    Electromechanical Brake Question

    Hello All, We are working on a vehicle specifically designed to utilize some of the current Drive by Wire systems out there. Our end goal is to test the Human Factors that contribute to the desire to or not to include by-wire systems in vehicles today. Currently we have identified sources...

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