simonr Posted July 30, 2007 Share Posted July 30, 2007 Although I'm still a couple of months away from having to build any of the rear steer control system for my truck, I thought I'd share my thoughts so far. I've looked at a few different rear-steer setups and most use a separate control lever to move the wheels left or right with an indicator of some sort to show when they are central. At the Belgium National one year there was a MaxiDrive Disco which had a lever built in to the centre cubby box which the driver or passenger could operate. This seemed a good idea as it's one less thing for the driver to worry about a lot of the time. The down side of course is when the passenger decides to make it a bit more exciting for you or accidentally leans on the lever! I wonder if there are many/any circumstances where you want something other than either: Rear Wheels steer straight Rear Wheels mirror front wheels Rear Wheels follow front wheels (crab steer)? If not, then it would make sense to build a simple servo control system to move the back with the front. It occurred to me to use Range Rover axle position sensors as used with the air suspension to measure the axle positions. The sensors are pretty robust and water resistant so are probably a good choice. Inside, they just contain a variable resistor - so easy to interface to. Although I considered using a computer for the control - my experience with the air suspension makes me think that an analog, hardware solution might be more bulletproof. So, here it is - for those of you who speak circuits... Can any of you think of scenarios where you would realistically want the rear steering to do something other than the above three modes? Si Quote Link to comment Share on other sites More sharing options...
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