Hello I want to make powered steps for a vehicle. Think Powered RV steps, but with an alternative drive due to space limitations and also the double $600/ side cost of RV steps drives. I also want the design to be robust so it will withstand the elements. I was thinking about a latching relay to drive the motor in one direction A. In the circuit I would put a circuit breaker in the load side in the event I hit an obstacle the load would heat the circuit and break the latch thus eliminating damaging or hurting anything the step would encounter. To reverse the direction to B I would need to have an opposite circuit to drive the motor. I would suspect finding the circuit breaker would need to be trial and error and could be a problem depending on the weather conditions, seasons, and perhaps amount of grim collected on the links.
Does any one have comments, is this too over simplified. I don't have any aversion to PWMs or other drive systems other than the learning curve to recall what was done in a year or two and maintenance is required
Does any one have comments, is this too over simplified. I don't have any aversion to PWMs or other drive systems other than the learning curve to recall what was done in a year or two and maintenance is required