palmermd
Posts: 2442
Joined: Fri Apr 23, 2010 3:19 pm
Delivery Date: 31 Mar 2011
Leaf Number: 1100011011
Location: Hermosa Beach, CA

Re: Navi safety override?

Fri Apr 06, 2012 9:50 am

Ingineer wrote:Are there any other "hacks" I should build into this?

-Phil



How about a clock sync. Compare the two clocks and then update the dash clock when it is different than the Nav clock. Nav clock seems to keep better time. My dash clock gains about a minute per week.
Michael

Leaf since 31 March 2011
Driving electric since 1996


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bdl99
Posts: 16
Joined: Sat Mar 24, 2012 4:36 pm
Delivery Date: 24 Mar 2012

Re: Navi safety override?

Fri Apr 06, 2012 10:53 am

Ingineer wrote:Yes, Gary is correct. I think I've figured out a neat and elegant way for this all to work.

Basically, you watch the screen for a touch event, and if so, you buffer the speed pulses, and begin allowing them out, but at a throttled rate. Then after a certain timeout, the throttling is removed. So anytime you touch the screen, the lockout is temporarily removed, the touch is processed, and you have a few seconds to continue selecting things. Meanwhile, the position might accumulate some error, but at least the system will still indicate progress and update via GPS. And if your average speed is still pretty low, such as driving in the city with stop/go traffic, the system will "catch up" even if you continue to touch the screen, and if you are driving fast, while continuing to touch, the error will eventually be corrected by GPS.

Of course, this same system automatically presses "ok" for you upon startup.

Gary, it looks like they will update the position once the error is over a certain threshold.

Yes, I can make the nag go away via the Nav CAN bus, but that effectively denies the agreement. This new method Ok's it.

-Phil


Very neat approach and spoken like a real engineer :)

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TomT
Posts: 10570
Joined: Sun Aug 08, 2010 12:09 pm
Delivery Date: 01 Mar 2011
Leaf Number: 000360
Location: Foothills of Granada Hills, CA
Contact: Website

Re: Navi safety override?

Fri Apr 06, 2012 10:57 am

I don't believe there is any way to either read or set the eye brow clock over the buss...

palmermd wrote:
Ingineer wrote:Are there any other "hacks" I should build into this?
-Phil

How about a clock sync. Compare the two clocks and then update the dash clock when it is different than the Nav clock. Nav clock seems to keep better time. My dash clock gains about a minute per week.
59,991 miles/12 bars/289 Gids/68.54 AHr/101% SOH/101.64% Hx 7May15 w/ new Lizard (barely made the warranty).
71,770 miles/12 bars/256 Gids/59.04 AHr/88% SOH/87.92% Hx 3Mar16 at lease return.

Now driving a 2016 Volt Premier. Model 3 configured.

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TomT
Posts: 10570
Joined: Sun Aug 08, 2010 12:09 pm
Delivery Date: 01 Mar 2011
Leaf Number: 000360
Location: Foothills of Granada Hills, CA
Contact: Website

Re: Navi safety override?

Fri Apr 06, 2012 11:00 am

Can you enable the backup camera with a button or screen press somehow? Not a big deal and probably of limited usefulness, but fun nonetheless...

Ingineer wrote:Are there any other "hacks" I should build into this?
-Phil
59,991 miles/12 bars/289 Gids/68.54 AHr/101% SOH/101.64% Hx 7May15 w/ new Lizard (barely made the warranty).
71,770 miles/12 bars/256 Gids/59.04 AHr/88% SOH/87.92% Hx 3Mar16 at lease return.

Now driving a 2016 Volt Premier. Model 3 configured.

bdl99
Posts: 16
Joined: Sat Mar 24, 2012 4:36 pm
Delivery Date: 24 Mar 2012

Re: Navi safety override?

Fri Apr 06, 2012 1:36 pm

bdl99 wrote:
garygid wrote:Driving under about 4 mph, the menus are enabled. So, I drove 3 mph and the car-location on the map still updates.

So, trying a pulse-generator (or pulse blocker), would seem to be a reasonable experiment.


Great, thanks for trying that and reporting back.


Also just been reading your Canbus threads and WOW, props to you for everything you have done and shared.

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TonyWilliams
Posts: 10032
Joined: Sat Feb 19, 2011 1:48 am
Location: San Diego
Contact: Website

Re: Navi safety override?

Fri Apr 06, 2012 4:50 pm

bdl99 wrote:Also just been reading your Canbus threads and WOW, props to you for everything you have done and shared.


That's why we have Gids.

Rat
Posts: 921
Joined: Sun Apr 25, 2010 7:47 pm
Delivery Date: 08 Sep 2011
Location: Silicon Valley
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Re: Navi safety override?

Sat Apr 07, 2012 3:54 pm

All this modding stuff probably belongs in another thread, although some is related. The OP just wants to know how to navigate while the car is moving, I think, and that's pretty easy for many destinations and situations. Here I am using the word "you" to refer to driver and/or passenger combined, but please be legal and safe. If you have ever set the location as a destination previously, you can get to it by going to the Previous Destinations option on the menu and selecting it. If you know in advance the destination you want, you could search it in GoogleMaps at work or home, then send it to the car. You can later download that from All information feeds/GoogleMaps in the car. If you have a smart phone you can do the same (except passenger only in CA - illegal for driver while driving) by searching the location and sending to car, then downloading the same way. All this can be done while driving at normal speed. No need to modify the electronics. I've never tried to program in a new address/intersection, etc. while moving, so perhaps this is blocked for safety reasons, but if the destination is already in the Nissan system somewhere you can get to it.

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TonyWilliams
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Location: San Diego
Contact: Website

Re: Navi safety override?

Sat Apr 07, 2012 8:59 pm

Another advantage to a physical overide is when I place or receive a call, and they want me to press one, etc, I can't do that safely without the dash phone keypad. Normally, I'd have to dig in my pocket, get the phone, find the keypad, and hopefully not crash while fumbling. Or, not take the call at all.

Now, I can just select override with a switch that is in a fixed location, turn it on, override light illuminates, keypad is now useable, press one, override off, light extinguishes.

I don't recommend that anybody except your passenger should input phone numbers or street addresses (or pull over and do it yourself).

KillaWhat
Posts: 866
Joined: Thu Feb 23, 2012 5:15 pm
Delivery Date: 15 Mar 2012
Location: Southeast Pennsylvania

Re: Navi safety override?

Tue Apr 10, 2012 12:45 pm

Well, I went ahead and purchased the Carkit "Remote Bypass Kit for Nissan Leaf".
I'm a die hard DIY person, but I just didn't have the time, and am really PO'ed about not being able to use the NAV while Moving.

The kit works exactly as advertised.
Programmed the phone into one homelink button, and the NAV override into the other.
Took me more like 30 minutes, but I could do it now in 10.

What struck me the most was how EASILY that center console comes off.
Pull here, pull there, and it's in your lap.

This car is not safe from me now. :twisted: :twisted:
There is all sorts of room and access back there.

Can't wait for the Leaf scan- All sorts of possibilities for wireing and mounting.

So, there you are.
It works, quick and dirty.
Black SL Delivered 3/14/2012
7.2Kw Charging w/Brusa
Leather Interior
Rosewood Dash
JUKE 17" Wheel Upgrade w/225-45-17 Michelin MXM4 Tires
Horn Upgrade
Infinity 63.9i Speaker Upgrade
WattsLeft Meter System
LED High Beams
Carkit NAV Override

sorphin
Posts: 90
Joined: Wed Apr 17, 2013 8:02 pm
Delivery Date: 18 Apr 2013
Leaf Number: 403273

Re: Navi safety override?

Sun May 12, 2013 3:54 pm

Some '13 with 'aroundview' and BOSE details.. the svc manual now says it's on 'pin 44' (Gray) based on their diagram, but it's still the same location noted as 'pin 28' previously, and it still has the same effect, it confuses the NAV and ungrays the options. What it doesn't do however, is eliminate the 'speed switch' for the aroundview monitor (when moving forward, the cameras, 'switch off' at about 7mph still).. I'm hoping THAT isn't on the canbus (which you'd think they'd just use the speed from the speed wire like the nav/option disable does, but apparently not). 'pin 45' (Green) is the reverse wire and 'pin 25' (Yellow) is the parking brake wire. On the 'Around View' control unit, 'pin 8' is reverse, and there is no speed wire. Again, this is from a 13 SV with 'Around View' and the Bose audio.

Here's from the 13 svc manual.

Image

Pin 44 - Speed
Pin 45 - Reverse
Pin 25 - Parking Brake
Pin 26 - Power


Also, I mentioned this in another thread, but the part # for the blanks for the 2013 is now 68492-3JA0A instead of 68492-AX000. (and looking at various parts sites shows a change in the size.)


Edit: After a bit more probing (and service manual digging).. I can confirm that they send the speed to the AVM (around view monitor) controller over the CANbus.. so there's no way on a 13 with aroundview to have the cameras on above 7mph (even with the speed wire to the AV unit 'disabled' and even the 'parking brake' wire pulled appropriately. The service manual implictly calls it a malfunction:

Symptom: "Selector lever is in a position other than R (reverse) and front, rear, front-side and Birds-Eye views are displayed even as vehicle speed increases."

Cause: "Vehicle speed signal malfunction (CAN communication) between combination meter and around view monitor control unit."

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