Wow, so that's really bad.. I thought it was just that it would return most of the way, but just not to dead center. Of course, I assume you can steer it back to center, or you would not be talking with us now!!.
Does the rack seems to provide steering boost when you do steeer it?
I'd try...
Get a pair of old style cycling gloves and use the backs..
https://aerotechdesigns.com/cyglnale.html?gad_source=1&gclid=CjwKCAiAibeuBhAAEiwAiXBoJFCrWni3g6VKIMWxzgVgoyvfb1l_VXCl1_EEjZ3JOSkQAcbrosZDFRoCFJ0QAvD_BwE
Well, my Maxlite Alpina wheels arrived a month ago, and the tires arrived from Tire Rack the other day, so yesterday I got them installed. VERY nice.
I went over to the car today (I store it in a nice dry garage out of town). It's been quite a while since I took a good look at her. Bone dry...
That's my assumption. A loud whine. Some pretty good driving too! Love the spot where he notes that you need to brake BEFORE the bump.. Presumably after the bump you are somewhat airborne and thus have no brakes!! All at 150-250 KPH..Yikes!!
My theory is that this "resistance" you have described is actually the rack motor pushing back on the rack in the wrong direction (still trying to steer it right or left, but with the forces balanced at the place the wheel returns to.
The null points in the diagram (the places where the motor...
Not quite. I think part of the problem is that the torque sensor is calibrated for the torque required to steer the C2, and the torque vs steering angle characteristic of the E9 is different.
Because of the larger caster angle, the E9 requires more rack force to turn the wheels. This means that...
No problemo. Love the attention to detail and the Tesla battery tech in your build! I don't know if you saw my first post that included JB's electric 944 Porsche link. I visited him back when Tesla was run by Eberhard and Tarpenning. JB walked me around Roadster #1, still being assembled. Fun...
After I wrote the post about weight and weight distribution, I read the reat of your thread, as well as jefflit's. I see both of you opted for batteries in place ofthe engine, and the motor in back. Seems like the right strategy given that the batteries pretty much offset the engine weight, and...
If you think about the electric steering system, it needs ot be fairly complicated because otherwise you would have system that steered like an old video game (or a 1950's US sedan!!)..too much boost and zero road feel.
The electric rack is trying to provide some sort of a controlled torque vs...
You should try to look up JB Straubel inthe US. He and I designed a hybrid electric car before he joined Tesla. At Stanford he retrofitted an electric drivetrain to a Porsche 944. Man that thing was quick!!! However, he had a zillion lead acid batteries in the trunk of the car as well as a...
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