I ordered his Phd Dissertation. He also did a Master of Science paper on a
similar topic, but I think I can get that through an interlibrary loan.
Oh, and Elon, doesn't he work at LLNL? I believe he oes. Surf the LLNL phone
book and see. He is supposed to be working somewhere in propulsion.
mayf
----- Original Message -----
From: "Albaugh, Neil" <albaugh_neil@ti.com>
To: "'3liter'" <saltfever@comcast.net>; "'LSR submissions'"
<land-speed@autox.team.net>
Sent: Wednesday, October 01, 2003 1:37 PM
Subject: RE: Rear Wheel Steering
> Elon;
>
> It would be interesting to see what his findings were.
>
> Regards, Neil Tucson, AZ
>
>
> -----Original Message-----
> From: 3liter [mailto:saltfever@comcast.net]
> Sent: Wednesday, October 01, 2003 12:14 AM
> To: LSR submissions
> Subject: Rear Wheel Steering
>
>
> John Whitehead not only understands the physics of rear wheel steering
but.
> most importantly, he identified the real problem as an almost
imperceptible
> lag-time (or feedback delay) to the human driver. I think he did his PhD
> Thesis on the subject in the early 80s. At any rate I read a paper of his
> about 25 years ago. If I recall (and I could be wrong) he proved that
rear
> steer was just as stable as the opposite. However, because of the human
> response time to stimulus, he indicated that only computer control or
> augmentation had the response time necessary to make the system work. He
> was not just a geek physicist , apologies to Mayf :-), but he actually
> built a system. Further, I think he instrumented his commute car and
> collected data in real conditions. Two of his articles are referenced
> below. But if you really want to understand the fundamentals you need his
> Thesis paper from the 80's. I saved it but it is buried under 45 years of
> car tech articles. Very few were capable of understanding his work but
the
> Japanese sure took an interest. (Does that tell you anything!). I'll try
to
> identify the paper and report back. In the meantime the Journal paper
> should be a good read. Ask your local library to get it for you or if you
> are close to a University try the engineering library for the SAE article.
>
> -Elon
>
>
>
> Whitehead, J.C., "Four Wheel Steering: Maneuverability and High Speed
> Stabilization," SAE paper 880642
>
> Whitehead, J., March, 1990. "Rear Wheel Steering Dynamics Compared to
Front
> Steering", Journal of Dynamic Systems, Measurement, and Control, Volume
112,
> pp. 88-93.
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