Have been doing a lot of reading of late regarding EFI systems for info on the project I'm working on.
A question that has been asked, can't remember where is what are the magnets for that are on the Gr/Gl sensor plate that is installed on the aft end of the right cylinder head. I have wondered about this myself.
Picture:
I think I have found what may be an answer to this. Reading the Motorcycle Fuel Injection Handbook by Adam Wade and his blurb on hall-effect sensors caught my eye.
These sensors are solid state, and are used instead of a VR sensor for certain applications. Apparently you can build signal conditioning circuitry around onto the silicon wafer that is in this sensor, but it has limitations.
Hall-effect sensors can have a digital or analogue output. The Gr/Gl sensors on the older Gold Wing FI bikes have an analogue signal.
Apparently a hall-effect sensor requires a magnetic trigger wheel, and the fingers/teeth need to be fairly wide compared to the slim fingers/teeth for a VR sensor. I surmise that the magnetic wheel in the case of the Gr/Gl sensors can be either a rotating wheel, or where the magnets are located on the Gr/Gl sensor plate. Don't need a lot of magnetism to develop, just enough to activate the sensor.
This makes this type of sensor a good candidate for a small number of triggering events such as the cam sensor.
This is the only reference I have found that could explain the magnets on the Gr/Gl sensor plate. It's as good an explanation as any I've seen.
A question that has been asked, can't remember where is what are the magnets for that are on the Gr/Gl sensor plate that is installed on the aft end of the right cylinder head. I have wondered about this myself.
Picture:
I think I have found what may be an answer to this. Reading the Motorcycle Fuel Injection Handbook by Adam Wade and his blurb on hall-effect sensors caught my eye.
These sensors are solid state, and are used instead of a VR sensor for certain applications. Apparently you can build signal conditioning circuitry around onto the silicon wafer that is in this sensor, but it has limitations.
Hall-effect sensors can have a digital or analogue output. The Gr/Gl sensors on the older Gold Wing FI bikes have an analogue signal.
Apparently a hall-effect sensor requires a magnetic trigger wheel, and the fingers/teeth need to be fairly wide compared to the slim fingers/teeth for a VR sensor. I surmise that the magnetic wheel in the case of the Gr/Gl sensors can be either a rotating wheel, or where the magnets are located on the Gr/Gl sensor plate. Don't need a lot of magnetism to develop, just enough to activate the sensor.
This makes this type of sensor a good candidate for a small number of triggering events such as the cam sensor.
This is the only reference I have found that could explain the magnets on the Gr/Gl sensor plate. It's as good an explanation as any I've seen.
