hidden wire brake sensor... ?
- Thread starter knighty
- Start date
Yes, they work perfectly and are quite sensitive.
Some of the newer controllers now have the 3-pin connectors for them, otherwise you have to do a bit of wiring. They have 3 wires: red 5v, black 0v and a signal wire. You can splice into the throttle cable/connector to get the 5v supply (red wire). The 0v (black) and signal wire can be connected to the low voltage brake connector. The brake connector has two pins: one is 5v, the other is 0v. The black from the brake sensor goes to the black 0v and the signal wire from the brake sensor goes to the 5v one.
When you apply the brake, the signal wire is effectively shorted to 0v, which then pulls down the 5v brake sense wire.
Some of the newer controllers now have the 3-pin connectors for them, otherwise you have to do a bit of wiring. They have 3 wires: red 5v, black 0v and a signal wire. You can splice into the throttle cable/connector to get the 5v supply (red wire). The 0v (black) and signal wire can be connected to the low voltage brake connector. The brake connector has two pins: one is 5v, the other is 0v. The black from the brake sensor goes to the black 0v and the signal wire from the brake sensor goes to the 5v one.
When you apply the brake, the signal wire is effectively shorted to 0v, which then pulls down the 5v brake sense wire.
chvidgov.bc.ca
10 kW
Thanks for the info...I've got one too, and I didn't know how to hook up the three wires from the sensor to the two wires for the ebrake coming from the controller. So I guess I can just solder the red wire from the ebrake sensor to the same point where the throttle red is soldered to the controller red wire (for throttle), right near the controller.
just done mine... but I must be doing it wrong
I've got red blue and yellow coming from the brake sensor thingie
controller has black and yellow
I connected the
red to 5v from throttle
blue to black out of controller
yellow to yellow out of controller
but like that, the ebrake cut off is on all the time
the little led on the brake sensor comes on with the red and blue connected... which made me think they were right ?
any idea where I've gone wrong?
I've got red blue and yellow coming from the brake sensor thingie
controller has black and yellow
I connected the
red to 5v from throttle
blue to black out of controller
yellow to yellow out of controller
but like that, the ebrake cut off is on all the time
the little led on the brake sensor comes on with the red and blue connected... which made me think they were right ?
any idea where I've gone wrong?
LED should only come on when brake cable is pulled tight thru the barrel.
My Fusin kit uses this sensor:
http://endless-sphere.com/forums/viewtopic.php?f=4&t=39877
and the one thing I don't like about it is that I have to pull the physical brake pretty hard to make it engage the sensor--hard enough that I am always braking physically before the ebrake cuts off the motor (if I am using pedalec or using the throttle and deliberately continuing motor use while braking to test it).
My Fusin kit uses this sensor:
http://endless-sphere.com/forums/viewtopic.php?f=4&t=39877
and the one thing I don't like about it is that I have to pull the physical brake pretty hard to make it engage the sensor--hard enough that I am always braking physically before the ebrake cuts off the motor (if I am using pedalec or using the throttle and deliberately continuing motor use while braking to test it).
ahh, so maybe I just have the cable too tight ?
I like them tight so there's not much slack when you need to brake...
I normally pull the calliper on slightly by hand and then fix the cable in tight so it's under a bit of spring tension via the calliper arm
I guessed they worked on cable movement, not tension
I'll have another look at them in a min
thanks for the help
I like them tight so there's not much slack when you need to brake...
I normally pull the calliper on slightly by hand and then fix the cable in tight so it's under a bit of spring tension via the calliper arm
I guessed they worked on cable movement, not tension
I'll have another look at them in a min
thanks for the help
grindz145
1 MW
deleted, wrong thread....
MAGICPIE3FOCUSPOWER
10 kW
How can I made this sensor output is high when braking?
You'd need additional electronics. The HWBS connects the signal wire to ground when the brake operates, so you could use it to switch on a relay or transistor that's connected to a 5v supply to get it high. Why do you want it high?MAGICPIE3FOCUSPOWER said:
MAGICPIE3FOCUSPOWER
10 kW
Thanks!
Hmm to much hassle.
I will use a simple magnet and hall sensor.
I want to use for brake light
Hmm to much hassle.
I will use a simple magnet and hall sensor.
I want to use for brake light
It's very simple to make them work. There, s a picture of the wiring on the BMSattery website.
Sensor red to controller 5v red; sensor yellow to controller black; sensor blue to controller brake connector 5v. Use a meter to find which of the two brake wires is 5v.
Sensor red to controller 5v red; sensor yellow to controller black; sensor blue to controller brake connector 5v. Use a meter to find which of the two brake wires is 5v.
jateureka
10 kW
Knighty,
What controller are you using? If you can give a few more details or photos we may be able to help.
I have used these HWBS on a converted e-bike with Shimano integrated brake/shifters and they work well. This kit used an Ananda controller that already had a 3 wire brake connector. The kit came with Tektro e-brake levers with switches that only connected 2 of the 3 wires on the controller.
What controller are you using? If you can give a few more details or photos we may be able to help.
I have used these HWBS on a converted e-bike with Shimano integrated brake/shifters and they work well. This kit used an Ananda controller that already had a 3 wire brake connector. The kit came with Tektro e-brake levers with switches that only connected 2 of the 3 wires on the controller.
I took a look at the detailed specification sheethttps://www.bmsbattery.com/attachment.php?id_attachment=44. I was wondering if angine had tried to put the sensor right after the leaver and connect to the CA. Is it feasible to connect 2 brakes sensors together, so if any of the brakes are applied, the signal wire is shorted?
alsmith
100 kW
DIY_turbo said:
If the brake sensor swiches are off when they aren't used, then on when the brakes are used connect the brake switch wires in parallel.
If the brake sensors switches are on when they aren't used, then off when the brakes are used connect the brake switch wires in series.
You can pput the sensor anywhere on the cable you want, including at the lever. I heard someone connected them to a common connector in parallel by joining all wires colour to colour. It worked OK because they work the same as switches joining the signal to ground. The only thing he noticed was that the indicator LEDs on the sensors both lit up regardless of what brake was applied, but that's not a problem.
Does anyone know what is this part that BMSbattery calls "Hidden Wire Break Sensor" ? (http://www.bmsbattery.com/accessory/459-hwbs-hidden-wire-brake-sensor.html)
I asked if this is replacing the brake grip and they answered "this is different"...
Thanks,
-Henri
I asked if this is replacing the brake grip and they answered "this is different"...
Thanks,
-Henri
biohazardman
100 kW
A few more ways to get your brake switch to werq with a reed switch, two wire input.
http://endless-sphere.com/forums/viewtopic.php?f=16&t=11760
http://endless-sphere.com/forums/viewtopic.php?f=3&t=31503&p=469185&hilit=reed+switch#p469185
http://endless-sphere.com/forums/viewtopic.php?f=3&t=38848&start=30#p691975
http://endless-sphere.com/forums/viewtopic.php?f=16&t=11760
http://endless-sphere.com/forums/viewtopic.php?f=3&t=31503&p=469185&hilit=reed+switch#p469185
http://endless-sphere.com/forums/viewtopic.php?f=3&t=38848&start=30#p691975
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