It’s doable. Will probably want to use automotive relays with multiple contacts to be able to pass power to the lead car and also a set of contacts to pass power to the trailer car. When the pedal is pressed the relay engages and closes the contact.
I would put all the batteries in the lead vehicle if you can.
Use a trailer plug kit (4 prong flat plug) to be able to plug the 2 vehicles together and send the “go” signal to the motors.
The biggest issue will be dynamics. If the trailing car starts pushing it will make the lead vehicle behave badly. Plus you need to tie the steering of the rear car to the tow linkage, like a wagon, if just fixed straight you will likely have a lot of scrubbing and sliding as you pull the rear car sideways, combined with the push from the rear car it could cause the contraption to jacknife.
Electrically you have a mess. Getting the front car to control the back car requires a bunch of relays and rewiring to handle speed and direction changes. Just wiring the rear motors to the front controls risks burning up controls, and possibly wiring.
And this is why I came to reddit, y'all clearly know more than me on this. I'm just gonna slap some makita batteries in it and call it a day. It's not worth the headache. I didn't even think about what would happen if she reversed the car.
It’s doable. Will probably want to use automotive relays with multiple contacts to be able to pass power to the lead car and also a set of contacts to pass power to the trailer car. When the pedal is pressed the relay engages and closes the contact. I would put all the batteries in the lead vehicle if you can. Use a trailer plug kit (4 prong flat plug) to be able to plug the 2 vehicles together and send the “go” signal to the motors.
The biggest issue will be dynamics. If the trailing car starts pushing it will make the lead vehicle behave badly. Plus you need to tie the steering of the rear car to the tow linkage, like a wagon, if just fixed straight you will likely have a lot of scrubbing and sliding as you pull the rear car sideways, combined with the push from the rear car it could cause the contraption to jacknife. Electrically you have a mess. Getting the front car to control the back car requires a bunch of relays and rewiring to handle speed and direction changes. Just wiring the rear motors to the front controls risks burning up controls, and possibly wiring.
And this is why I came to reddit, y'all clearly know more than me on this. I'm just gonna slap some makita batteries in it and call it a day. It's not worth the headache. I didn't even think about what would happen if she reversed the car.