Electric M37

nattieleather

Well-known member
1,821
30
48
Location
Cleveland, OH
It looks like you have power steering. Will you be hooking up a pump to the front of the motor? Also do you need a alternator for recharging? I know nothing about electric vehicles. Looks like you might have some room in the engine compartment to mount some of the batteries?
 

Johnbyrdgates

Member
23
36
13
Location
Rockport/MA
It looks like you have power steering. Will you be hooking up a pump to the front of the motor? Also do you need a alternator for recharging? I know nothing about electric vehicles. Looks like you might have some room in the engine compartment to mount some of the batteries?
I will be trying to run the power steering off the front motor shaft. I’m not sure what it’ll be like though, given that the motor stops when you’re stopped. We’ll see I guess and I already own the power steering setup. With high voltage electric vehicles like this’ll be, you use a dc/dc charger to pull power from the high voltage system and charge a 12 volt battery for all the low voltage stuff. Lots of contactors, fuses, a shunt or two and significant cable size (2/0) that needs to be protected from chafing. I’m going to add shutoff switches, quick disconnects and an inertia switch to kill the high voltage in the event of a serious accident. That’ll be the first modern safety thing in the truck other than the 15 year old seat belts I installed.
 

Johnbyrdgates

Member
23
36
13
Location
Rockport/MA
Don't they make electric power steering units? Though maybe they are not appropriately sized for a vehicle this heavy?
Electric one is my backup plan, though it might not fit between that monster steering box and the cab firewall. I’m hoping I can program some sort of idle mode into the controller when I’m in neutral or something...I already had the hydraulic one.
 

John Mc

Member
89
58
18
Location
Monkton, VT
Electric one is my backup plan, though it might not fit between that monster steering box and the cab firewall. I’m hoping I can program some sort of idle mode into the controller when I’m in neutral or something...I already had the hydraulic one.
Maybe just a smaller electric motor to run your hydraulic pump? Might be simpler than arranging some sort of neutral detection, and then remembering to shift into neutral in order to steer when stopped.
 

Johnbyrdgates

Member
23
36
13
Location
Rockport/MA
Maybe just a smaller electric motor to run your hydraulic pump? Might be simpler than arranging some sort of neutral detection, and then remembering to shift into neutral in order to steer when stopped.
That’s a great idea. Maybe I can take apart an electric power steering unit and use its motor and control on my existing pump. I’m still knee deep in wiring and steering is a bit later on. Thanks.
 

John Mc

Member
89
58
18
Location
Monkton, VT
I'm guessing it would be easier to just find an electric motor of the appropriate size than tear apart an electric power steering unit for its motor (at any rate, if you HAD an electric power steering pump, you could just USE it, rather than tearing it apart to use the motor for your existing pump). I have not idea of what "appropriate size" means for this application. I wonder if an old 12V electric heater fan motor would be enough? You want something rated for continuous duty.

Running it off a separate motor, rather than the main motor also allows you to put it wherever you want, maximizing space for batteries and other accessories.

I don't know how much of a draw the electric power steering motor would be, but if you wanted to maximize your range, you could have a switch to power it down when you are not doing a lot of tight maneuvering and need every mile of range.
 

Johnbyrdgates

Member
23
36
13
Location
Rockport/MA
I'm guessing it would be easier to just find an electric motor of the appropriate size than tear apart an electric power steering unit for its motor (at any rate, if you HAD an electric power steering pump, you could just USE it, rather than tearing it apart to use the motor for your existing pump). I have not idea of what "appropriate size" means for this application. I wonder if an old 12V electric heater fan motor would be enough? You want something rated for continuous duty.

Running it off a separate motor, rather than the main motor also allows you to put it wherever you want, maximizing space for batteries and other accessories.

I don't know how much of a draw the electric power steering motor would be, but if you wanted to maximize your range, you could have a switch to power it down when you are not doing a lot of tight maneuvering and need every mile of range.
You sure you haven’t done this before?😉
 

Bill Nutting

Well-known member
Steel Soldiers Supporter
336
478
63
Location
Chesterfield, Mi.
I’m wondering if a pump for a boat’s trim tabs might work for the power steering. I don’t know if they are rated for continuous duty but they have the motor, pump and reservoir all in one unit. I’m looking forward to seeing this project complete. I’m hoping you can do a video of it in action...
 

Johnbyrdgates

Member
23
36
13
Location
Rockport/MA
I’m wondering if a pump for a boat’s trim tabs might work for the power steering. I don’t know if they are rated for continuous duty but they have the motor, pump and reservoir all in one unit. I’m looking forward to seeing this project complete. I’m hoping you can do a video of it in action...
Thanks. I’m investigating options. My current hydraulic motor consumes more fluid than the trim tab drives I’ve seen so far. Dodge Challengers have electric power steering that may fit. So do Toyota MR2’s, but I have a difficult time believing a system for a 2000 lb car would last long on a 5500 lb truck.
 

John Mc

Member
89
58
18
Location
Monkton, VT
You sure you haven’t done this before?😉
No, just thought about it a lot (I've always been interested in homebrew electric vehicles. Although I've never done one, I put a lot of research into it back when I was in high school). Also, I'm in the middle of a swap from a 230 to a 251 engine (Tim Holloway is doing th real work on this, but I've been poking my head in and getting in his way from time to time). Things fit a little differently with the different engine, and one of the things that we needed to change was the old power steering set up: It worked, but it was a really strange one, and belt alignment was poor.
 
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website like our supporting vendors. Their ads help keep Steel Soldiers going. Please consider disabling your ad blockers for the site. Thanks!

I've Disabled AdBlock
No Thanks