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Topic: the operating temperature is -40 to + 85 ° C

the operating temperature is -40 to + 85 ° C

la température de fonctionnement est de -40 à + 85 ° C

Après plisseurs tests, il s’est avéré que le Canny 7, commence sont disfonctionnement aux alentours de 45 °, température facilement atteinte dans un véhicule au soleil par exemple. Quoi faire ?

After testing, it turned out that the Canny 7 began to malfunction at around 45 °, a temperature easily reached in a vehicle in the sun, for example. What to do ?

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Re: the operating temperature is -40 to + 85 ° C

According to our data and the data of our customers for many years and continents, controllers certainly work at higher temperatures.
What exactly is going wrong at 45 C ? Can you send please a some sort of more detailed tests report, maybe videos, detailed fotos both side of controller's PCB, parameters of connected circuits, external loads and power to info@cannylogic.com ? We will try to reproduce your tests at our lab and I'm sure we'll find a solution to your problem.

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Re: the operating temperature is -40 to + 85 ° C

Nous sommes dans un problème, qui n’est pas facile à trouvez, nous constatons que c’est bien la température qui provoque le non fonctionnement du véhicule, notamment après une charge (chaleur du chargeur) ou que le véhicule à été au soleil, le passage au frigo du Canny 7 pendant 5 minutes, celui ci reprend son fonctionnement normal, le souci c’est qu’en visualisant les trames lorsque le canny 7 bloc le véhicule, il n’y a pas d’altération de trames.

Avec un 5.2 duo, il n'y a pas de problème !

We are in a problem, which is not easy to find, we note that it is the temperature which causes the non-operation of the vehicle, in particular after a charge (heat from the charger) or that the vehicle has been in the sun, switching the Canny 7 to the fridge for 5 minutes, it resumes its normal operation, the concern is that by viewing the frames when the canny 7 blocks the vehicle, there is no alteration of the frames.

With a 5.2 duo, there is no problem!

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Re: the operating temperature is -40 to + 85 ° C

We will check what we can by this data.
For make this clear - are you use CANNY 7, not CANNY 7.2 duo to alter messages in place of CANNY 5.2 duo?

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Re: the operating temperature is -40 to + 85 ° C

Oui, c'est un Canny 7, nous l'avons sur plusieurs véhicules identiques, et le problème lié à la température est sur chaque véhicule.
Lorsque nous mettons un Canny 5.2 duo il n’y a pas de problème lié à la température.

Yes it's a Canny 7, we have it on several identical vehicles, and the temperature issue is on each vehicle.
When we put on a Canny 5.2 duo there is no problem with the temperature.

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Re: the operating temperature is -40 to + 85 ° C

In that case I'll need more details: full connection schematic of CANNY to your vehicle with all power and loads lines with parameters and detailed fotos both side of controller's PCB. Since I do not quite understand how CANNY 5.2 duo can be replaced by CANNY 7 for purpose of altering CAN messages. Can you send it to info@cannylogic.com or attach here please?

the concern is that by viewing the frames when the canny 7 blocks the vehicle, there is no alteration of the frames.

What exactly did you see? Which point of your circuit was connected to?

In case CANNY 5.2 duo / 7.2 duo using "in-cut" of CAN bus, if the controller stops working, the data flow through it will stop completely.

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Re: the operating temperature is -40 to + 85 ° C

Le schéma est très simple, une alimentation 12 v du Canny 7 rouge + noir - et les deux fils gris et bleu relié au  can du véhicule électrique, il n’y a rien d’autre de brancher.
Pour le Canny 5.2 duo, idem, sauf, que le programme est différent, et le branchement est en deux parties, un bus can vers le bms batterie HT et l’autre vers le can du véhicule électrique.
A noter, que le problème de blocage est toujours au démarrage du véhicule, jamais, cela s’est produit en route.
Ce qui est certain, c’est la température du Canny 7 qui provoque le blocage !
Mais très difficile a diagnostiqué, car c’est aléatoire et que les appareils ne sont pas systématiquement branchés au moment du défaut.   

The diagram is very simple, a 12v power supply from the Canny 7 red + black - and the two gray and blue wires connected to the can of the electric vehicle, there is nothing else to plug in.
For the Canny 5.2 duo, ditto, except that the program is different, and the connection is in two parts, one can bus to the HT battery bms and the other to the electric vehicle can.
  Note that the blocking problem is always when starting the vehicle, never this happened on the way.
What is certain is the temperature of the Canny 7 that is causing the blockage!
But very difficult to diagnose, because it is random and the devices are not always connected when the fault occurs.

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Re: the operating temperature is -40 to + 85 ° C

What is certain is the temperature of the Canny 7 that is causing the blockage!

The fact that the reason is in temperature 45 C is high probability impossible. For the past few hours, the controllers have been operating in an oven in our laboratory at temperatures between 90 С and 105 С with melted cases but with no failures. As many time before it on development and production tests.

While we are dealing with this you can perform a simple test: heat and take temperature measurement of the runned controller at your desk with this diagram. If the controller stops working, the LED will stop blinking. You can extend the diagram by adding some CAN RX/TX if you wish.

This is the third time I appeal to you: please send me detailed photos both side of your failed controller's PCB to info@cannylogic.com

Note that the blocking problem is always when starting the vehicle, never this happened on the way.

Please check the voltage on CANNY's power input and CAN on vehicle start, take the oscilloscope. Try to power CANNY from separate 12V battery and check the result.

Post's attachments

led.png, 5.29 kb, 383 x 117
led.png 5.29 kb, 7 downloads since 2020-07-27 

thermo.jpg, 27.98 kb, 320 x 214
thermo.jpg 27.98 kb, 11 downloads since 2020-07-27 

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Re: the operating temperature is -40 to + 85 ° C

Voici les vidéos, le défaut est présent après chauffe du Canny 7 environ 45 dégrées, impossible de démarrer, après remplacement par un Pico, aucun problème !
Lorsque le défaut est présent, la led reste à fonctionner.

Here are the videos, the fault is present after heating the Canny 7 about 45 degrees, impossible to start, after replacement by a Pico, no problem!
When the fault is present, the LED remains on.

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Re: the operating temperature is -40 to + 85 ° C

We have agreed to replace the faulty controller instance and now are waiting to find out the reasons for the failure.