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With So Much Stuff Right....

Discussion in 'Gen 2 Prius Technical Discussion' started by donee, Mar 15, 2009.

  1. jayman

    jayman Senior Member

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    The additional marginal cost to have drill-down menus is very minor. Toyota already has some of this, but in a semi-secret "dance" of MFD and buttons.

    It isn't rocket science to build touch screen targets and drill-down menus. I was doing that in the mid 1980's on systems like this one

    [​IMG]

    Obviously a lot larger and more expensive than an entire dealer allotment of Prius cars.
     
  2. FL_Prius_Driver

    FL_Prius_Driver Senior Member

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    Wow. Those big outdoor grill sets have gotten really sophisticated.
     
  3. jayman

    jayman Senior Member

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    For the time, that TDC 3000 was extremely futuristic and highly capable. It was also built like a brick s***house and ran forever. Not too many computers in 1980 offered touch screen interface.

    Of course, a basic TDC 3000 installation would set the client back several million, so you paid for that futuristic technology back then
     
  4. subarutoo

    subarutoo New Member

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    That's why we have Scangages.
     
  5. Qlara

    Qlara New Member

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    Toyota is doing a good job on hiding these 'technical' info from the regular owners, which maybe account 98% of the Prius public. Prius is basically a 'software' car, you just need to turn it on and drive! All other info like Coolant Temp, RPM, Fuel Trim, O2 sensors volts, Intake Pressure, etc. are debug info used by the Prius Engineers who refining the OS of the HSD.

    Watching over the roads or traffics will be far more important than being distracted by additional gauges, graphs or numbers on the MFD or dash. Simple is beautiful, the most indicators you need is just the MPH, MPG and the Fuel Guage.
     
  6. jayman

    jayman Senior Member

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    I completely agree.

    However, the ability to drill-down to different menu levels would be a welcome feature. Other car makers provide this feature. There is a "dance" one can do with the MFD to enter some diagnostic functions

    Personally, I find myself driving with my MFD off most of the time, especially at night time
     
  7. Frayadjacent

    Frayadjacent Resident Conservative

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    I would agree that the MFD should have a screen to conglomerate a lot of the information that we'd like to see. I'd also like to be able to see the engine temperature, so I can know what operation I can expect. It may be beneficial to have an indication of electrical power flow in order to maximize regeneration (the Insight I had a few years ago had a great power flow meter that helped with regeneration).

    So, what I'd like to see on a conglomerated screen would be:

    Engine temperature
    Battery SOC
    Energy flow (both powering the motor(s) and regenerating)
    Engine RPM
    Instant Economy

    And then have numeric displays for

    Lifetime Economy
    Trip A economy (reset by the trip odometer)
    Trip B economy (reset by trip odometer)
    Today economy (like the SG will show)
    This Trip economy (like the SG shows)
    Outside Temperature


    At a quick glance, one could see what mode the vehicle should be operating in with the engine temperature and battery SOC meters. Engine RPM would easily indicate when the engine shuts off. Energy flow would help maximize regenerative potential.
     
  8. donee

    donee New Member

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    Hi Qlara,

    But the car is not simple when you push or lift the gas pedal and it does not react to the same way it did 10 minutes ago. This is quite an issue when the temps are below 20 F, or first drive in the morning when temps are below 30 F. This is because of all the warmup stages. The stuff I suggested would make it simple. The other alternative would be to just dump the car into stage 4 at startup and leave it there. That would make it simple. That may not be technically practical, however.
     
  9. donee

    donee New Member

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    I do not like the visual ergonomics of the Scangage. The numbers are small, and they are numbers without any kinda of relational display. Somethings are best displayed as numbers, like battery state of charge, fuel level, speed, most temperatures.

    But RPM during accellerating needs a relational display. As does battery current level for braking and accellerating. How else do would you know that you need to brake more softly over that particular bump in the road to get complete regenration? And pulse and glide efficiency suffers greatly too without these instruments. One cannot be refocusing to read numbers during accellerating or braking. That is ASKING to be in an accident around here. With such displays one does not have to look at it to get its information. The driver can get the feedback, and know the feel of the best things. So, eventually, he/she does not need to even have the instrument 70 % of the time. But take the instruments away and human will drift off what was optimum. We learned that in Physical Science 1 , freshman year of High School.

    Which is why I used the MYCANSCAN. Its worlds safer than the Scanguage and its allot safer than the stock MFD when its run on a small computer up on the dashboard. Unfortunatly," Different is Wrong" in the midwest, if you have not heard. The color modulation of the tachometer block of the MYCANSCAN is excellent.

    This is why Toyota blew it. They should have put in a real vehicle information display, and put it in front of the driver. And they did not. And its really bizarre that in the 2010 interior they moved even more of the neccassary things like the speedometer OUT of the line-of-sight of the driver, after having them in the line-of-sight of the driver.

    One way this could be done is to make the variometer or tachometer as a color change of the speedometer numbers. Slowing down slighly and the color goes yellow, speeding up green. Stable at speed - orange for the variometer functions. In the MYCANSCAN - 2000 RPM is olive drab, and 2200 orange 2400 is red, 0 RPM is black. So that cues you when your pushing the pedal too hard and when you have the engine off. 2000 RPM is about right for pulse and glide accelleration in and around other cars. On the highway full MPH difference before you realise your slowing down is TOO much around here on the highway. People behind you do not like it. In a standard car we do this automatically by engine pitch. But that feedback mechanism does not exist in a CVT car.
     
  10. bac

    bac Active Member

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    I want all of those things also. However, I would guess I'm in the minority in a BIG way.

    Your average auto customer just wants a gas/brake pedal, steering wheel and a gas guage. Sadly, sometimes I don't think they even understand those simple things. :D

    ... Brad
     
  11. john_dough

    john_dough New Member

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    One other consideration is that the "average driver" is more likely to be distracted and get involved in an accident with so much data to look at. I suspect most folks on this site or those among us who fly airplanes will safely handle the additional info.
     
  12. donee

    donee New Member

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    Hi John,

    The average driver does not even look at the dash board. One with more or less info is not going to change that.

    This is why they tend to get pissed off at people in front of them doing the speed limit, when they can see all the other cars moving along faster. If they looked at their dashboard and saw the true speed, they would have nothing to be mad about.
     
  13. yardman 49

    yardman 49 Active Member

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    I have a fairly high amount of lighting automation that I have installed in my house. Some of it is controlled by an electronic interface unit that is accessed via a standard ethernet network connection using a Java client.

    The "operating system" for this solid state lighting controller is firmware based. It is truly an electronic "appliance", which is both very reliable and very small, and uses little electricity. When a new release of the firmware becomes available, I can easily update it via the Internet. Compared to the alternatives, it is very "user friendly". And yet it can be quite powerful and sophisticated should someone want to get into it to that level.

    Contrast this with other control rigs that are used by Home Automation afficienados of the same protocol as mine. These are computer-based systems that require an "always on" computer in order to be able to launch the required events and timers, and to modify lighting scenes. Very cumbersome for the average user.

    If I ever sell my house, I want the lighting to be a selling point. And I want to be able to say "and this little box here controls the lighting", not "oh, see this computer over here? This needs to run 24 hours a day for your lighting automation to function".

    This thread reminds me of my lighting example. Toyota realizes that to ultimately be competitive, their hybrids have to behave like an "appliance": the simpler, the more it feels like a "normal" car, the better.

    What's great about the Prius is that you can drive it like a "regular car", and still get mileage in the mid 40s (overall). Sure, it would be really great if we could have advanced access to more of the inside information in real time. And sure, you can hypermile and get 70+ mpg.

    But I have to agree with the sentiments of others here that most people that who ultimately buy hybrids in the future won't care about "what" its doing as long as it works. After all, Toyota needs to sell volume to stay competitive and stay in business. And there probably are not enough enthusiasts to keep them in business.