Quote:
Originally Posted by Sarlacc
Sounds terrifying.
I can think of one scenario that sort of fits the description.
IF the power steering is based on a stepper motor, and the motor is still under power but not receiving commands to rotate, the steering wheel would be extremely hard to move, since the driver would have to fight the stepper motor.
I'm not saying this is the case. I rather hope it's not, because it would seem to be a very stupid way to design power steering.
Anyone got any input on how electric power steering works in general, and on our cars in particular?
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Wow, you might be onto something. Seriously. I concur with your hypothesis. It is also in the realm of possibility there exists one or more failure modes that were not anticipated by the designers. Failsafe servo controls are actually quite a challenge to design. I wouldn't dare to call myself an expert but it was my bread & butter both as an intern and for several years after I graduated college.