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Jostein
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Topics: 25 / Replies: 1208
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RE: Engine RPM

I doubt it is noise. More likely the voltage is still at the edge (check with an oscilloscope if you can). If needed you may be able to run the input ...

3 days ago
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RE: Engine RPM

@palo31 Engine RPM is always equal to the brake (or roller) RPM * Gear ratio. This is the main RPM in the system, where power etc is calculated from. ...

3 days ago
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RE: Engine RPM

Hi, check that the optocoupler is strong enough to bring the voltage down. It has a 500Ohm pullup inside the box.

3 days ago
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RE: Computer Requirements

Hi, An i5 or better is recommended. It has 4 cores, which is the minimum recommended. The CPU is doing lots of things in parallel in real time and t...

1 week ago
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RE: Latest software version

Apologies, but one more release then I will shut up for a while :-). This is for the water brake folks. The stepper motor settings were not saved corr...

1 week ago
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RE: Latest software version

Hi folks, YourDyno version 3.3.19 was released today. This is another pure clean-up release. Now the manual axis settings of all graphs are st...

1 week ago
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RE: Latest software version

Hi folks, YourDyno version 3.3.18 was released today. This is a pure clean-up release: Clicking Restart in the Run window would sometimes not wo...

2 weeks ago
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RE: Ultimate: integrated CAN, 120ohms termination resistor

There is a fixed termination resistor in the YourDyno unit. Regards Jostein

3 weeks ago
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RE: Latest software version

Hi guys, YourDyno version 3.3.17 was released today. Here are the changes. Support for 4WD hub dynos on YourDyno Ultimate Individual brake ram...

3 weeks ago
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RE: Inertia dyno torque calculation

@cstrick9 your points are correct. You can use the direct engine RPM channel as your X-axis (Options->Results vs XXX) and with a Math channel you...

4 weeks ago
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RE: Using a car alternator as an eddy brake for testing 2hp-10hp small engines

The transistor board should work. However, you cannot hook the alternator up to a 24V power supply and "charge" that. You could connect to a discharge...

1 month ago
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RE: Using a car alternator as an eddy brake for testing 2hp-10hp small engines

You can use a transistor that shorts the output of the alternator, controlled by a PWM signal from YourDyno. The H-bridge you linked to may work, b...

1 month ago
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RE: Controller digital output as fast "rev limiter"

Hi, You can do this with the KMTronic relay module. It will be as fast as any YourDyno output. You set it to trigger on an RPM set point.

1 month ago
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RE: Inertia dyno torque calculation

Hi, Power and Torque are calculated at the roller. Engine Torque is calculated from roller torque divided by gear ratio. If you have a difference be...

1 month ago
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