Axel
Active Member
Hi Eric and Kurt,
I made the tests with the 6 Ampere internal fuse and put it in the new EHC. I think that there could be no need anymore for a 20 ampere inline fuse, but as long as we haven´t tested the ehc outside of the normal functions I suggest to use the additional inline fuse. In my workshop is everything fine and the EHC is resistant against short circuits of all the separate outputs but a bike is somehow different to my workshop and I don´t want to promise something only as result of workshop tests. However, I don´t have the 20 Ampere inline fuse in my bike.
About 11 volt and lower: This is no problem for the box. The microcontroller will self reset somewhere below 5 Volt and will start again to work if the voltage is ok. The only problem could be the starter solenoid. The internal highside switches switch off below 5,5 Volt. So, a low battery might have enough power that the solenoid will work when you push the start button but the voltage will fall when the starter get his power, what result that the highside switch will switch off below 5,5 Volt. This result that the battery voltage increase and the internal switch will switch on again. This effect could happen 10 - 20 times per second, what might burn your starter solenoid. I hope you understand my confused describtion
About Eric Kings EHC: I don´t know yet what happen. I think he got one of the EHC without the high voltage supression diode what prevent the EHC against inductances from the starter or the ignition coil if the battery have a higher impedance when it is not full charged or weak. I implement this diodes since June and he got his box on June 5. Unfortunaly I had potted the boxes in black colored potting compound what make an identification of problems difficult.
However I made some changes within the last 3 months what affect bigger copper tracks and 2 (Carb) or 3 (EFI) internal self resettable fuses as well as the implemention of the diode and a better power distribution from the highside switches to the outputs. Don´t worry, I´ll take care for a replacement if your box will fail. There are more than 150 EHC out already what work without problems. The most problems (...not all) in the EHC result from a problem in the harness or somewhere else in the bike. I´ll take care of it but I only can change something when a problem is happen and I know the problem. Only a defect EHC will help to improve the product and not the 150 EHC what work fine. I don´t promise that the EHC is resistant now against every issue in the harness or bike but I´ll work on it ;-)
All the best!
Axel
I made the tests with the 6 Ampere internal fuse and put it in the new EHC. I think that there could be no need anymore for a 20 ampere inline fuse, but as long as we haven´t tested the ehc outside of the normal functions I suggest to use the additional inline fuse. In my workshop is everything fine and the EHC is resistant against short circuits of all the separate outputs but a bike is somehow different to my workshop and I don´t want to promise something only as result of workshop tests. However, I don´t have the 20 Ampere inline fuse in my bike.
About 11 volt and lower: This is no problem for the box. The microcontroller will self reset somewhere below 5 Volt and will start again to work if the voltage is ok. The only problem could be the starter solenoid. The internal highside switches switch off below 5,5 Volt. So, a low battery might have enough power that the solenoid will work when you push the start button but the voltage will fall when the starter get his power, what result that the highside switch will switch off below 5,5 Volt. This result that the battery voltage increase and the internal switch will switch on again. This effect could happen 10 - 20 times per second, what might burn your starter solenoid. I hope you understand my confused describtion
About Eric Kings EHC: I don´t know yet what happen. I think he got one of the EHC without the high voltage supression diode what prevent the EHC against inductances from the starter or the ignition coil if the battery have a higher impedance when it is not full charged or weak. I implement this diodes since June and he got his box on June 5. Unfortunaly I had potted the boxes in black colored potting compound what make an identification of problems difficult.
However I made some changes within the last 3 months what affect bigger copper tracks and 2 (Carb) or 3 (EFI) internal self resettable fuses as well as the implemention of the diode and a better power distribution from the highside switches to the outputs. Don´t worry, I´ll take care for a replacement if your box will fail. There are more than 150 EHC out already what work without problems. The most problems (...not all) in the EHC result from a problem in the harness or somewhere else in the bike. I´ll take care of it but I only can change something when a problem is happen and I know the problem. Only a defect EHC will help to improve the product and not the 150 EHC what work fine. I don´t promise that the EHC is resistant now against every issue in the harness or bike but I´ll work on it ;-)
All the best!
Axel
Very informative!! I could not be happier with my Axel EHC. I have not added the 20 amp fuse to date. My harness is nice and I hate to cut into it. Thumbs up Axel!!
