Archives

Not sure this fits in here, but it looks to me light the closest fit.

I was wondering if anyone had thought of putting in a break light switch to use during p&g or noc. I would turn this on so the other drivers would know i'm going slower, and possibly attempt to go around sooner, or adjust their speed accordingly.

One of my coworkers thought all I would need to do is splice the wires for the break lights and add in a switch to complete the circuit with.

Anyway I was thinking just using a simple toggle switch would probably do the trick.

Yes, you could just add 12v to the brake light circuit. But it dosn't seem like gliding should neccesitate a brake light being on.

I shouldn't, but when i'm 10 to 15 mph or so below the flow, even in the right lane it might help them realise they need to go around, before they get stuck and annoyed. All the people around here like to drive all the way up to the light at 10 over the speed limit and then stomp on the breaks.

Hi Koreberg:

___Please do not do this as you will be causing havoc. If you are that far below the flow in heavy traffic, you have got to shrink your speed deltas. 5 – 7 at 3 over to 4 under is barely noticeable in the medium to heavy stuff with buffers behind. Any more and you are starting to cause havoc. Adding brake lights on each glide coming on every 30 + seconds is going to create a traffic nightmare to your rear.

___Good Luck

___Wayne

You could always just throw on the hazard lights if your concerned with people running into the back of you. Plus it will get peoples attention much better than just having the brake lights on. They might just assume your riding the brake or have your parking lights on.

I hear what you're saying. i'll try doing 50-42, I still need to figure something out when gliding up to lights. Theres about 17 of them on my 10 mile commute.

Traffic lights suck :(

Now that I have MIMA I just pull back on my joystick to get regen and hope the light switches before I get to it. Usually people won't freak out if your going super slow up to a red light... although I've had someone roll down their window and use some choice words about driving too slow :rolleyes:

And the MIMA board allows for tying the output of the aux2 relay to the brake light circuit, so when regening above a certain amperage, the brake lights give an indication of deceleration.

Randall

Randall, Is this wired up with the directions on Mikes page? I don't remember reading about this happening.


@ Koreberg: Also a note about the brake lights. I've seen some boxes that wired in with your 3rd brake light that flashed it when you step on the brake to help get the attention of other drivers... that coupled with your push button brake light switch would really get the attention of people

Ok, update Randall's outdated info.
Looks like the AR2 relay is what is powering the FAS relay in the latest MIMA version. I will have to dig through my MIMA hardcopies, but IIRC the option 4 setting at one time provided for activating the AR2 when regen was above a set point. Don't shoot I'm getting old.:D

Could be the violet wire on this page:
http://www.99mpg.com/mima/install/installation/09mountingthemimasy/

Here's the brake light schematic:
http://www.99mpg.com/Data/Resources/downloads/harnessdiagrams/brake_light_relay.pdf

Randall

Ahah, not quite as crazy as I first thought.

check out this thread here on cleanmpg:
http://www.cleanmpg.com/forums/showthread.php?t=1808&page=3


Andy
I looked up your system. You have software version 1.5.0
Since then I have added several things, as outlined below. Your code has the code for external brake light activation over 15A. That would be AR1, the violet wire. AR1 and AR2 are open collector transistors, and the brake lights are high side switched, so a relay needs to be used to properly drive them, as shown on the harness PDF. Calpod was going to use the AR1 output to illuminate a sign that said "RECHARGING", to keep people off his tail.

1.5.1 Change the display brightness to the set value after brightness cal step in calibration, was only correct on exit of cal mode before.
Cosmetic change

; in BG charge, display make the XOXOOXOX pattern appear if the BG charge value is at min (0 amps) or max (25 A)
Helpfull to know when you are at the limits


;fix reversed detection of Assist at stop function to properly turn off assist at stop if option 1 is in the default condition
Bug, only effects system when you want assist to operate when stopped

;1.5.2 Add config bit 3. "halfassist". When set, The full joystick range will represent ony 50% assist rather than 100%
Was included for the guys having recal issues, that do not want the assist to get over 50%


;open up center dead band for CMDpwr so side jogs don;t activate by accident.
Helpfull and makes jogging more reliable.

;1.5.3 Fix the no mode1 led when in MIMA on demandbug caused by the last code.
Bug fix

;1.5.4 make AR1 control the boost charge or activate on >15A regen, using option 4 to toggle from default(boost enable) to alternate (brake light >15A)
Allows configuration of AR1 output from brake light to controll for my boost system.

;1.5.5 invert the boost enable function
Bug fix.
I have your extra transport chip, and can send you the latest code if you would like.

My recollection of option 4 must have been from taking to Mike about the boost control function. I don't think he has released 1.5.4 code.

Randall

I thought for sure my chip said 1.5.5

I could be wrong, but thank you so much for the info. I'll get working on it :D

This is from an email I recieved from Mike, concerning the boost control and the 4th control option.

The 4th config bit is working, but the timing of deactivation of the
boost system to assist and regen when in the boost control mode needs
some more work to guarantee that it will not generate a code.
It should work fine once I give the code another look.

It looks like he inverted the dot 4 on the dot 5.

I'll send him a PM and ask for a comment in this thread.
We're getting off the thread topic of brake light switch on a non-MIMA vehicle!!, which I would advise against. In the case of MIMA equipped regen, the vehicle is decelerating. Thats braking.

Randall

Most of the MIMA systems have the 1.5.5 code with option 4 working to select boost enable or brake light activation when regen is greater than 15A. If you toggle option 4 to flashing, AR1 will switch low whenever the regen is > 15A. Verision 1.5.0 had the AR1 output set up for the brake activation when regen was over 15A, without the need for option 4 selection.


As far as using the brake light for P&G, I would agree that it may just confuse the drivers behind you.
My Hybrid Research Vehicle bumper sticker seems to get me a bit of slack from the guys behind me.
Maybe a " Hypermiler at work, saving fuel for our children." Or other similar sticker could be designed, and used by all hypermilers?
Maybe an illuminated Hypermiling sign in the rear hatch?
Sounds like a nice product that Clean MPG could offer to all the hypermilers?
;)

Thanks Mike.
Randall

Hi Koreberg:

___Please do not do this as you will be causing havoc. If you are that far below the flow in heavy traffic, you have got to shrink your speed deltas. 5 – 7 at 3 over to 4 under is barely noticeable in the medium to heavy stuff with buffers behind. Any more and you are starting to cause havoc. Adding brake lights on each glide coming on every 30 + seconds is going to create a traffic nightmare to your rear.

___Good Luck

___Wayne


I can just see the OPs thinking patern ...
HUmm... lets think ... Causing an accident or getting better millage. hey how do i rig my brake lights so people dont rear end me >!>!?!?!oneone11?!!

:eek: geesshh...

Hey sorry if im making assumptions or something something, but that is really what it sounds like to me,.. correct me if im wrong .. and I must agree with wayne here, if you are +- 5~7 mph thats good, but 15 mph slower than all other traffic is just asking to get it hard in the rear !