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Deactivate Start&Stop (ISG)

The dealer managed to disable mine "permanently" whilst it was in being checked. He said it wouldn't be reactivated till I performed a sequence with the doors and locks, something about shutting the doors and locking the car in order then leaving it unlocked for at least 4 hours straight.
However the next day it came back out of the blue.
I don't think it can be killed, it's like the terminator.
 
I don't understand, how would you expect a hybrid car to work? Never turn on the combustion engine, or never turn it off? What exactly frustrates you about it? The frustrating bit on the start/stop system in conventional cars is that you can get a delay before engine starts and is able to move the car... That does not apply to hybrids?


ASD, Sadly that is true when your hybrid is a true hybrid and can run from electrical power only.

But the CRX is a "Honda hybrid". It uses engine power ALL the time, and just uses the electric motor to "boost" the engine power under hard acceleration, and recharges the battery when braking. The electric motor is attached to the engine, it doesn't drive the wheels or gearbox.


The CR-Z still needs to fire up the engine, just like a non hybrid car before it takes off. So it has the same lag time everyone with stop/start whines about. True that is not how most hybrids work, but the CR-Z is a conventional car with Hybrid boost!

So my complaint that it can't be turned off is a valid one :)
 
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ASD, Sadly that is true when your hybrid is a true hybrid and can run from electrical power only.

But the CRX is a "Honda hybrid". It uses engine power ALL the time, and just uses the electric motor to "boost" the engine power under hard acceleration, and recharges the battery when braking. The electric motor is attached to the engine, it doesn't drive the wheels or gearbox.


The CR-Z still needs to fire up the engine, just like a non hybrid car before it takes off. So it has the same lag time everyone with stop/start whines about. True that is not how most hybrids work, but the CR-Z is a conventional car with Hybrid boost!

So my complaint that it can't be turned off is a valid one :)
Huh, didn't know that... sounds more like a car with KERS than a hybrid ;)
 
Having seen the interest here for a start-stop memory module, I thought 'I can make one of those', for much less than the commercial ones available (I'm an electronic engineer).

I've got a prototype up and running on the bench, whcih stores the current state of the system, and simulates a button press on startup if necessary.

In order to finalise the hardware design, I need to check the connections available at the on/off button by the gearlever, so was looking for any tips on how to pull this bit apart - has anyone done this yet?
 
Having seen the interest here for a start-stop memory module, I thought 'I can make one of those', for much less than the commercial ones available (I'm an electronic engineer).

I've got a prototype up and running on the bench, whcih stores the current state of the system, and simulates a button press on startup if necessary.

In order to finalise the hardware design, I need to check the connections available at the on/off button by the gearlever, so was looking for any tips on how to pull this bit apart - has anyone done this yet?
You have some more info? Pictures?
What code pops up in the CAN lines when you press that button?
 
I think it will be like this...

https://n-cars.net/forums/threads/tarmot´s-pb-i30n-performance.882/page-4#post-17854

The other possibility would be to invert the signal after switching it on. (via transistors or relay)
Yes, the example in the link is correct.

I think when you press the SS OFF button there will be a code send thru the can lines. You need to intercept this code and replicate it using a small circuitry that contains a programmable IC. You also must program a delay of a few seconds after starting the engine I would think?

Your suggestion will also work, it you have a small delay after you start the engine, trigger the relay/transistor wich bridges the SS OFF switch for 1 second.
 
You have some more info? Pictures?

It's on a development board with a few LED's and switches, so not much to see at the moment. Just need to confirm the connection to the status light and button on the car to finalise the interface circuitry. I have a preliminary idea for the prototype already, should look similar to the ones linked to by padigree.
What code pops up in the CAN lines when you press that button?

I'm not monitoring the CAN bus, intending to use the status light signal to detect the current state.
 
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Yes, the example in the link is correct.

I think when you press the SS OFF button there will be a code send thru the can lines. You need to intercept this code and replicate it using a small circuitry that contains a programmable IC. You also must program a delay of a few seconds after starting the engine I would think?

Your suggestion will also work, it you have a small delay after you start the engine, trigger the relay/transistor wich bridges the SS OFF switch for 1 second.
No, its no code. It's a digital signal. The signal is delayed after powering on the car. The last state of the controller will be saved and executed after turning the car on next time.

Inverting signal could be done with a simple ne555 for the delay and 2 transistors for inverting the signal. so 0=1 and 1=0. The car starts with ASS off.
 
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No, its no code. It's a digital signal. The signal is delayed after powering on the car. The last state of the controller will be saved and executed after turning the car on next time.

Inverting signal could be done with a simple ne555 for the delay and 2 transistors for inverting the signal. so 0=1 and 1=0. The car starts with ASS off.
I see! Quite easy overall :D
 
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So, still looking for any information on how to dismantle the console near the gearlever to access the wires to the switch.......
 
Progress! After a bit of gentle teasing, the gearlevel gaiter will lift up to reveal a multi-way connector which goes to the ISG switch, parking assist switch, and one heated seat:

20180721_125503.jpg

So what I need now, in order to identify the ISG switch and LED lines, is a wiring diagram! Does anyone have, or have access to one?
 
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I spent an hour or so probing all the wires to the connector, and found the signals I needed.

So here is a video of the prototype 'fitted' to the car, turn on captions to see what's going on:


Now it has been tested, I'm putting together a neater version of the hardware