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Project Development Help

08/01/2016 9:52 AM

I was thinking of making an app that lets you control the basic functions of our car .. it can be said that it replaces the use of keys ...all the function that key does the application can perform ... It uses router and raspberry pi for the connection ...but I have some doubts regarding how does car actually start ...what does car key do and how can I implement all this

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#1

Re: Project development help

08/01/2016 10:12 AM

There is no need. There are already apps that control the basic functions of a car. They are called:

  • Pedals
  • Steering wheel
  • Handbrake
  • Knobs
  • Switches
  • Gear lever

..and cars that have these apps readily pass MoT inspections. Why bugger about with something that works and is safe (rhetorical question - NNTR)?

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#30
In reply to #1

Re: Project development help

08/03/2016 4:35 PM

NO, NO, NO. He is just wanting hack into his lady friend's car, and steer it back to him!

Or turn if off when she is frantically trying to escape him. Can you not see that?

The humanity of it all!

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#2

Re: Project development help

08/01/2016 10:18 AM

No, and I'll give 2 reasons.

  1. Most makers already has this, one is OnStar from GM.
  2. The liability of it getting hacked is not for amateurs even professionals to be written this app.
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#3

Re: Project development help

08/01/2016 10:27 AM

My car doesn't have a key to start it. It has an "app" in the "key fob" which lock/unlocks and allows to car to be started when it's in the interior of the car. What would your app do?

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#4
In reply to #3

Re: Project development help

08/01/2016 10:50 AM

My ap would unlock the car...lock the car ...it could start the engine and could switch it off....it could also turn on the AC ... Actually I wanted to know how car key is used for starting car engine

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#6
In reply to #4

Re: Project development help

08/01/2016 10:53 AM

Use a search engine.

"how does an ignition key work.

Quit NOW!

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#5

Re: Project development help

08/01/2016 10:51 AM

Don't even think about it.

You'll kill innocent bystanders for no good reason.

And, it is a lost cause from the start if you have no idea what the ignition key even does.

Stick to PokemanGO!

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#7
In reply to #5

Re: Project development help

08/01/2016 10:55 AM

I do know what it does but I don't know the exact mechanism....I can develop the app but for that I need to know the exact fundaments about the how key stats the engine

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#8
In reply to #7

Re: Project development help

08/01/2016 10:57 AM

Don't ask people to infuse you with elementary information.

USE A SEARCH ENGINE.

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#31
In reply to #5

Re: Project development help

08/03/2016 4:36 PM

At least one other person on this forum picked up on what OP's intentions are immediately! Good catch!

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#9

Re: Project Development Help

08/01/2016 1:26 PM

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#10
In reply to #9

Re: Project Development Help

08/01/2016 1:37 PM

Points... Vacuum advance... Condenser...

From which quaint and curious volume of forgotten lore did this illustration come?

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#11
In reply to #10

Re: Project Development Help

08/01/2016 1:44 PM

not all forgotten, I remember that.

Straight 6 cylinder.

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#29
In reply to #11

Re: Project Development Help

08/02/2016 10:45 PM

That's my old 1965 Mustang!

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#32
In reply to #10

Re: Project Development Help

08/03/2016 4:37 PM

The other side of the mountain, my friend, and many days gone by.

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#18
In reply to #9

Re: Project Development Help

08/01/2016 6:43 PM

I'll leave it to the OP to determine the applicability of the schematic. That may be exactly the car he has in mind. This is a fool's errand anyway.

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#23
In reply to #9

Re: Project Development Help

08/02/2016 6:26 AM

...and how many know the importance of that "primary resistor"?

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#24
In reply to #23

Re: Project Development Help

08/02/2016 6:37 AM

It works as a ballast type resister so the coil doesn't see the full system voltage.

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#28
In reply to #24

Re: Project Development Help

08/02/2016 6:05 PM

Except when cranking when the coil does see full system voltage to make a good strong spark on those cold winter mornings.

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#33
In reply to #23

Re: Project Development Help

08/03/2016 4:38 PM

It is a current limiter so the coil can more appropriately reach magnetic saturation and also not send a high voltage transient back to the battery.

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#26
In reply to #9

Re: Project Development Help

08/02/2016 2:29 PM

was this for a hand-cranked engine? no starter or accessory circuits or charging or.... just kidding-good one!

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#12

Re: Project Development Help

08/01/2016 1:58 PM

You mean like this..?

https://www.viper.com/smartstart/

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#13

Re: Project Development Help

08/01/2016 2:01 PM

So you want to remotely control a car that is powered by an internal combustion engine, and you want to use a Raspberry Pi as the heart of your control system.

A RPi doesn't have enough functionality for what you want to do, unless you severely limit the functionality of the car.

Choose a project that is more in line with your own knowledge and experience.

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#14

Re: Project Development Help

08/01/2016 2:15 PM
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#15

Re: Project Development Help

08/01/2016 3:26 PM

SPST - thats the fundamentals of an ignition switch.

What else do you need to know?

Keep up the good work

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#17
In reply to #15

Re: Project Development Help

08/01/2016 5:57 PM

What about the momentary switch for the starter motor??

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#19
In reply to #17

Re: Project Development Help

08/01/2016 6:51 PM

The ignition key switch is 4-position, I never really noticed?

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#20
In reply to #19

Re: Project Development Help

08/01/2016 7:03 PM

Not any longer.

Most that use keys are now off/on/start.

Non-points vehicles don't need an acc position.

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#16

Re: Project Development Help

08/01/2016 4:06 PM

I can see what you are after I think, a remote control system to get the car warm or cool before the driver arrives. Sorry but this is not going to work for numerous technical, legal and budgetary reasons, even if this app is only for your own personal use, so much more so if you plan on selling it.

Feel free to search the internet for the basics on vehicle operation and app creation for your own knowledge improvement but be aware that what you ask is outside realistic expectations.

For example the vehicle would need to be heavily modified to allow remote control of the ignition and air conditioning system, so much so that it would likely not legally be able to be on the road.

For example, for a manual vehicle what would happen if you tried to start the vehicle when it was still in gear? What would happen if the ignition control tried to start the vehicle when the vehicle was already running? Nothing good!

There are major safety concerns in allowing remote control starting of vehicles and although there are systems available to my knowledge they are specifically built into cars by the manufacturer or those approved by the manufacturer for safety and legal reasons.

Consider control of something else other than an automobile, do some personal research on line on the basics of whatever new idea you have (including a search online to see if it has been done before) and feel free to come back and ask if you need further help.

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#21
In reply to #16

Re: Project Development Help

08/01/2016 11:49 PM

Actually I a student and I was thinking this for a project.. but was not able to find much info that's y I asked it in here...

PS if u gave some other idea do share

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#22
In reply to #21

Re: Project Development Help

08/02/2016 6:23 AM

Go to school,enroll in a programming program, take some night classes. Along with that you'll gain some general educational classes such as on ethics.

it goes deeper than that, but you pick up the fundamentals and proves your seriousness.

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#27
In reply to #21

Re: Project Development Help

08/02/2016 3:47 PM

I don't see why this wouldn't work as a school or University project.

The whole point of these school projects is not to come up with something that will work in the real world and be used to make money (that is very, very rare), its about developing the skills for personal research, developmental process and problem solving. A practical test of your newly-taught theory skills and developing your ability to perform research (now days mostly online) to teach yourself (fill in the blanks of knowledge as it were).

After all, the courses don't teach you everything, just give you enough of the basics for you to build on an continue to teach yourself and learn.

Try searching online for the basics of automotive electrical system operation and air conditioning, there is plenty of information online to assist you in this school or University project. Search terms such as "automotive electrical system" should help (you found CR4 after all).

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#25

Re: Project Development Help

08/02/2016 9:49 AM

Call Tesla and apply for The Head Of Programming position.

You'll fit right in there.

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#34
In reply to #25

Re: Project Development Help

08/03/2016 4:42 PM

Nice! I think OP should try remote control of lawn mower first.

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#35
In reply to #34

Re: Project Development Help

08/06/2016 9:19 AM

That's a good suggestion but will the OP understand its value to him?

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#36
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Re: Project Development Help

08/08/2016 9:33 AM

Did the chimps on 2001 A Sapce Odyssey know the significance of the black obelisk in front of them? They only knew suddenly they had a tool in their hand.

I wake up with a hammer in my hand (not).

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