[HN Gopher] Hydraulic Steering - Principles of Operation (1956) ...
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       Hydraulic Steering - Principles of Operation (1956) [video]
        
       Author : baazaar
       Score  : 21 points
       Date   : 2023-07-27 20:10 UTC (2 hours ago)
        
 (HTM) web link (www.youtube.com)
 (TXT) w3m dump (www.youtube.com)
        
       | creeble wrote:
       | More like "hydraulic power-assist steering" in modern terms.
       | 
       | With modern "hydraulic steering" it tends to imply no mechanical
       | coupling between the steering wheel and the movement of the
       | wheels/rudder/motor. A hydraulic leak or pressure failure
       | therefore causes catastrophic loss of steering.
        
       | bshacklett wrote:
       | These are some of the best explanatory presentations in
       | existence. I would love to see them analyzed to better understand
       | how they are so effective.
        
         | Animats wrote:
         | It's very 1950s military.
         | 
         | They never mention that this is a simple feedback control
         | system. The mechanics that maintained the thing had to know
         | that, since it's vulnerable to the oscillation and lag problems
         | of a simple proportional control system. Those feel like
         | steering wheel vibration and slop to the driver. This is for an
         | off-road heavy truck, not a sports car, so a little lag is not
         | so bad.
         | 
         | The very large vehicle at the end is the M65 Atomic Cannon.
        
         | mikewarot wrote:
         | Eliminate jargon, simplify as much as possible... but no more.
         | You can explain almost anything to anyone, if you recursively
         | apply this technique.
        
           | andrepd wrote:
           | >simplify as much as possible... but no more
           | 
           | Is an excellent lemma. Applying it, of course, is what's very
           | difficult :)
        
       | bramhaag wrote:
       | Similar videos about cars:
       | 
       | Chevrolet Suspension (1938):
       | https://www.youtube.com/watch?v=ej7CRAIGXow
       | 
       | How Differential Steering Works (1937):
       | https://www.youtube.com/watch?v=yYAw79386WI
       | 
       | How A Transmission Works (1936):
       | https://www.youtube.com/watch?v=JOLtS4VUcvQ
       | 
       | And as a bonus, an explanation about transistors from 1953:
       | https://www.youtube.com/watch?v=V9xUQWo4vN0
        
         | jetrink wrote:
         | My favorite old explainer video, telephone switching (1951):
         | https://youtu.be/xZePwin92cI
         | 
         | About the Strowager Switch, which was invented by an undertaker
         | who was fed up with the local telephone operators whom he
         | suspected of diverting phone calls to his competitor.
        
       | jeffrallen wrote:
       | The secret is in the spline!
       | 
       | Also: this is not how modern power steering systems work.
        
         | kube-system wrote:
         | > Also: this is not how modern power steering systems work.
         | 
         | Yes, most hydraulic systems today have been replaced by
         | electric power steering, which uses electronic sensors to
         | determine how much assist to apply via an electric motor.
         | Mechanically, it is simple and very low maintenance.
        
           | genter wrote:
           | Well, even before electric power steering became popular,
           | rack and pinion steering was/is used in almost all passenger
           | vehicles. The only vehicles that I can think of that use a
           | steering gear and pitman arm like this video are 1 ton
           | Ford/Chevy/Dodge and the Jeep Wrangler.
        
             | calvinmorrison wrote:
             | Doesn't the XJ have a steering box as well?
        
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       (page generated 2023-07-27 23:00 UTC)