Search found 63 matches

by monette999
Jun 10 2021 8:34am
Forum: Motor Technology
Topic: Easiest to convert alternators?
Replies: 16
Views: 545

Re: Easiest to convert alternators?

Show us your magnet and Sensor System please

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by monette999
May 31 2021 12:01pm
Forum: Motor Technology
Topic: Easiest to convert alternators?
Replies: 16
Views: 545

Re: Easiest to convert alternators?

Hi Fechter but in this post the starter want to use an axial magnetized round magnet, and then an non magnetic shaft will not work well.

So we have to stay of the subject.

Greeting
Bob

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by monette999
May 30 2021 1:15am
Forum: Motor Technology
Topic: Kelly KLS7218 or KLS4812
Replies: 2
Views: 166

Re: Kelly KLS7218 or KLS4812

Kelly or Sabvoton that a good question?

Did somebody did a Pugh Matrix for the assessment?

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by monette999
May 30 2021 1:08am
Forum: Motor Technology
Topic: Easiest to convert alternators?
Replies: 16
Views: 545

Re: Easiest to convert alternators?

[/quote] If the shaft is magnetic, it will shunt a lot of the flux away from the teeth. You may need to make a new shaft from something non-magnetic.[/quote] Hello Interessant Do you have evidence for this statement! I think the magnet can be chosen after you took the clawpole Eddy Current Rotor ap...
by monette999
May 29 2021 2:10pm
Forum: Motor Technology
Topic: Easiest to convert alternators?
Replies: 16
Views: 545

Re: Easiest to convert alternators?

What magnet did you choose?

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by monette999
May 29 2021 10:45am
Forum: Motor Technology
Topic: Easiest to convert alternators?
Replies: 16
Views: 545

Re: Easiest to convert alternators?

I am using a Valeo 180A, but a PM Rotor is an expensive modifications. Is it worth to spend that money. Sensor System is mandator for a project that request high torque @ start. Let me participate how you do it. Have fun. Bob https://uploads.tapatalk-cdn.com/20210529/bde24a736282f72f98a3a728758bd20b...
by monette999
May 26 2021 1:59am
Forum: Motor Technology
Topic: Car alternator to PMAC?
Replies: 43
Views: 1669

Re: Car alternator to PMAC?

Yes I saw that but how an a private engineer with limited equipment build such a rotor case. It look like precision stamping of the Eddie Current Rotor Housing with slides square magnets. For this build you need a sequential stamping line with integrated welding. I don't have this at home. Thanks. G...
by monette999
May 25 2021 1:29pm
Forum: Motor Technology
Topic: Car alternator to PMAC?
Replies: 43
Views: 1669

Re: Car alternator to PMAC?

That's a nice motor but it must be very expensive. The sales video wasn't cheap. Good Marketing. I am happy with my alternator, 15 Euro a piece, from Shebay. and with a sensor system it works well, so 50km/h is not a problem on a 20S 8p configuration. Greeting https://uploads.tapatalk-cdn.com/202105...
by monette999
May 25 2021 8:55am
Forum: Motor Technology
Topic: Car alternator to PMAC?
Replies: 43
Views: 1669

Re: Car alternator to PMAC?

What is IPM?

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by monette999
May 07 2021 1:14am
Forum: Battery Technology
Topic: WTB Battery Relay Controller 100V 20S
Replies: 8
Views: 273

Re: WTB Battery Relay Controller 100V 20S

I have a inert gas filled contacter Judging without details is funny. I want to limit the failure rate for defect BMS I want no passive balancing nor some fets who are my electrical switch. I am running hight current through my contacter. I don't want to get limited by the Fets nor suffer under a ba...
by monette999
May 06 2021 8:28am
Forum: Battery Technology
Topic: WTB Battery Relay Controller 100V 20S
Replies: 8
Views: 273

Re: WTB Battery Relay Controller 100V 20S

I guess I will wait for someone who know about voltage programmable relay. I run many battery packs at my cart in different voltage configuration

No BMS from me Jose.

Good bye



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by monette999
May 06 2021 6:42am
Forum: Battery Technology
Topic: WTB Battery Relay Controller 100V 20S
Replies: 8
Views: 273

Re: WTB Battery Relay Controller 100V 20S

No that is not what I want.
I am charging my packs with a balanced charger. I HATE BMS.
I want a low voltage disconnect by relay.

Any better proposal?

Thanks

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by monette999
May 06 2021 4:47am
Forum: Battery Technology
Topic: WTB Battery Relay Controller 100V 20S
Replies: 8
Views: 273

WTB Battery Relay Controller 100V 20S

Hi FOLKS WTB a 100V Battery Controller Relay. That should disconnect the charge if my Batt voltage is above 84V and disconnect the Battery below 60V. Who knows an affordable product? I have bought this and it blow up At the first usages. Thank you Bob https://uploads.tapatalk-cdn.com/20210506/77b079...
by monette999
May 06 2021 3:03am
Forum: Motor Technology
Topic: Car alternator to PMAC?
Replies: 43
Views: 1669

Re: Car alternator to PMAC?

I did something like that many years ago to build a hydroelectric generator. I used some old ceramic speaker magnets that took up the space of the original field coil. One thing I found is the original shaft is magnetic, which shunted away most of the magnetic field. I had to make a non-magnetic sh...
by monette999
May 06 2021 12:56am
Forum: Motor Technology
Topic: Water cooled car alternator
Replies: 48
Views: 2277

Re: Water cooled car alternator

Can I use my Sensor Signal as speed information for pwm field weekening? What hardware shall I use? Some adruino which can control a pwm Controller? Who can provide the software program. Last time I was programming ist 30Years ago? Grüße Robert https://uploads.tapatalk-cdn.com/20210506/c8224193a312d...
by monette999
May 05 2021 2:10pm
Forum: Motor Technology
Topic: Kunray, Greenline, WuBull 84V 3000W usage durable
Replies: 0
Views: 120

Kunray, Greenline, WuBull 84V 3000W usage durable

Hello Forum who is running these controller with 84V. I have this attached 80A controller and want to know if it is save to use it under 84V. Thanks for the support. Greetings Bob https://uploads.tapatalk-cdn.com/20210505/b3c882789bcaeb3e2d15f9502c1fa5ec.jpg Gesendet von meinem CPH1911 mit Tapatalk
by monette999
May 05 2021 12:58pm
Forum: EBike General Discussion
Topic: Help me choose the best / right controller ?
Replies: 3
Views: 1032

Re: Help me choose the best / right controller ?

Hi FOLKS who has experience running the attached controller with 84V I am afraid running my controller in 84V it will die real quick. But I like more power. Who has test this already? https://uploads.tapatalk-cdn.com/20210505/9a95e8b7e923fbc261ff0a5da9811d33.jpg Gesendet von meinem CPH1911 mit Tapat...
by monette999
May 04 2021 7:30am
Forum: Motor Technology
Topic: BLDC Phase Line Meter, a question of how to?
Replies: 15
Views: 682

Re: BLDC Phase Line Meter, a question of how to?

Dear Folks, I have a single wire for a display line. What display would work to be connected to this line. Any Idea what to buy. Does someone can make a proposal what to buy for display. Greeting Bob https://uploads.tapatalk-cdn.com/20210504/9aece42a932af5ad97653e14e6a2ea53.jpg Gesendet von meinem C...
by monette999
May 03 2021 12:09pm
Forum: Motor Technology
Topic: Water cooled car alternator
Replies: 48
Views: 2277

Re: Water cooled car alternator

Hi I have an 4s8p Lion configuration on my rotor. I have seen that others control the rotor current with a pwm controller for field weakening. But that to ambiguous. How can I connect field weakening with my speed. May drive battery is two 8s8p. The cells are 2.9Ah and at 67V it pulls more than 30A....
by monette999
May 02 2021 6:53am
Forum: Motor Technology
Topic: Water cooled car alternator
Replies: 48
Views: 2277

Re: Water cooled car alternator

Dear all, I have found the problem with the cogging. It was an problem with the sensing order. Now I can confirm that a Cart can run with 67V max 30A with an 3000W controller. Top speed is around 45 to 50 km/h. Reverse is also working as well. That's cool to have reverse gear. I like to increase the...
by monette999
May 01 2021 4:04am
Forum: Motor Technology
Topic: Water cooled car alternator
Replies: 48
Views: 2277

Re: Water cooled car alternator

I can adjust my sensor position with the external system. I can position my sensor. I have also tried the hall internal but I have so small slot's. Damaged the Stator windings. Who is using a Sabvoton or Kelly controller and give feedback about start up ability. Thanks for the interested chat. Im co...
by monette999
May 01 2021 1:35am
Forum: Items for Sale - Used
Topic: Sabvoton SVMC150,CAV3 for sale (Switzerland)
Replies: 8
Views: 1204

Re: Sabvoton SVMC150,CAV3 for sale (Switzerland)

Do you sell the controller stand alone?

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by monette999
Apr 29 2021 12:22pm
Forum: Motor Technology
Topic: Water cooled car alternator
Replies: 48
Views: 2277

Re: Water cooled car alternator

What wrong with my sensor test? https://youtube.com/shorts/LnO_8D1NlPE?feature=share I have added in each motor phase an 1R 10W resistors. The usage of the resistor was a fail I will check if the cogging is driven by the controller. https://youtu.be/-TYzTO_Dq9Q Do you see the reverse rotation of the...
by monette999
Apr 26 2021 6:42am
Forum: Motor Technology
Topic: Water cooled car alternator
Replies: 48
Views: 2277

Re: Water cooled car alternator

https://youtu.be/0ooEO186VR0 Hi the good think is that it runs fast 50km/h was my top speed. The bad thing my bad starting behavior it not solved https://youtu.be/UIsWZSbUQpA Here my sensor system tests https://youtube.com/shorts/LnO_8D1NlPE?feature=share Greeting monette999 Gesendet von meinem CPH1...
by monette999
Apr 10 2021 2:22pm
Forum: Motor Technology
Topic: Water cooled car alternator
Replies: 48
Views: 2277

Re: Water cooled car alternator

I paid 70€ for the 3000W Controller and 10€ for the Sensor System. DIY The PCB I have ordered at JLCPCB in China than 3x 1206 SMD 270R resistors and 3 Vishay Infrared Sensors. That's it. Alternator was 20€ So now I will check it the torque ist acceptable. Greetings Robert https://uploads.tapatalk-cd...