Amazon Stops Selling Illegal eMotos in CA

[PCeBiker]

Honesty I see no reason to do that.
PAS 0 everything is OFF except walk mode.

Yeah, I think I'll change it back.
I'd still have 9 PAS modes.
And I think that it starts up in PAS 1 anyway?

 

[PCeBiker]

That doesn't help at all for the large numbers of people who rent an e-bike.

The same sort of thing was happening back in the 70's with gas powered Mopeds.

They too were "just bicycles" but people were getting hurt.

IIRC in Canada, you just needed to be 16 and wear a helmet?
Same as ebikes now.
(I'm not sure about a speed limit?)

 

[Gionnirocket]

Yeah, I think I'll change it back.
I'd still have 9 PAS modes.

And I think that it starts up in PAS 1 anyway?

It does... Never understood the reasoning for that.

 

[6zfshdb]

I've had the bike take off on it's own twice so far. Both times it was because of an open in the throttle ground circuit. Luckily, I was able to grab the brake before it got loose. I now keep my hand on the brake until I turn off the power button as a precaution. I'm trying to think of a "dead man" control of some sort.

 

[PedalUma]

The bike I was referring to went to a 70 y.o. non-rider, unfamiliar with throttles. It raised its front hooves and bucked up as he was walking it, hence the thumb push in not down throttle. He can ghost pedal it for a few days until the PickUp tires arrive with the new throttle. The half-twist was too scary for him. It is temporarily disconnected.

 

[PedalUma]

I've had the bike take off on it's own twice so far. Both times it was because of an open in the throttle ground circuit. Luckily, I was able to grab the brake before it got loose. I now keep my hand on the brake until I turn off the power button as a precaution. I'm trying to think of a "dead man" control of some sort.

How about saddle down pressure? No one on the bike, it doesn't have power.

 

[6zfshdb]

How about saddle down pressure? No one on the bike, it doesn't have power.

That would help, but it wouldn't prevent the bike from taking off unexpectedly at a stop while I'm still seated. Such a switch would also be difficult to rig on my saddles, which I change frequently.

I'm thinking of something more sophisticated, like a proximity switch.

 

[Gionnirocket]

How about saddle down pressure? No one on the bike, it doesn't have power.

Probably wouldn't be that hard to implement with a micro switch on a suspension seat post.

 

[PCeBiker]

I've had the bike take off on it's own twice so far. Both times it was because of an open in the throttle ground circuit.

It's that damn Hal sensor circuitry !!

I built a "proper" throttle using a potentiometer with a resistor before and after the potentiometer.
When I disconnected the ground from the circuit, I registered a throttle fault because +5 V was sent down the signal wire.

With a Hal sensor throttle +4.1 V is sent down the signal wire with the ground disconnected.

I don't know how to build it, but I Know it's possible to redesign the Hal sensor circuit to go to +5 V when ground is lost.


A mid-drive throttle (with the connector plugs reversed) puts out +4.1 V at zero throttle, and +1.2 V at full throttle, so when it loses ground, the throttle goes to zero, or registers a fault and shuts down.


Being as the resistors before and after the potentiometer are roughly the same, simply swapping the positive and negative going to the throttle, switches the throttle from mid-drive to hub-drive, or vice versa.

 

[PCeBiker]

I'm thinking of something more sophisticated, like a proximity switch.

I think that this proximity switch has a two foot proximity, approximately.

 

[Gionnirocket]

Or add a second push button on the opposite grip that needs to be held to operate the throttle.
Seems like overkill to me since I've not had any issues.