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Line Lock Idea?

Old Jun 1, 2014 | 04:16 PM
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Default Line Lock Idea?

Firstly, no I'm not looking to do burnouts...

I'm looking to trick my abs system and use it to create a system that will allow me to stop power from going to one of my front whiles in the event its in the air. My thought is that because ABS uses speed sensors (2 in front, 1 in Rear) that I could use a couple of DPDT relays and some resistors and cause the ABS to think that both back tires and one front tire are completely stopped and that the remaining front tire is either spinning at normal speed or faster. If I'm right (and I'm probably not) this will cause the ABS to close the valves to the rear tires and one front tire, but allow full pressure to the remaining front tire. Then if I drive with 2 feet, one on brake and one on the gas, the one front tire will become locked up and the other 3 will receive full power.

Is this feasible?

And before someone gets into the safety hazards of not being able to brake 3 of 4 wheels, the system is going to be wired on 2 switches, one master On/Off switch and one switch that will determine which wheel is locked vs powered, Left/Right, so in the event i need to brake its just one switch flipped and all brakes have full power again
 
Old Jun 1, 2014 | 09:39 PM
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I don't understand your want to do this??
 
Old Jun 1, 2014 | 09:44 PM
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Originally Posted by rexmburns
I don't understand your want to do this??
This, why?
 
Old Jun 1, 2014 | 10:33 PM
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I dont think ABS works below about 3 mph, or at least thats how POST works. It uses VSS and not wheel speed to determine how fast youre going.
 

Last edited by LeWhite; Jun 1, 2014 at 10:38 PM.
Old Jun 2, 2014 | 02:51 AM
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I want to do this because the front diff is an open diff. So in the event one front wheel is off the ground while in 4 wheel drive that weel gets 100% of the power sent to the front wheels, or 50% of the total power. 50% wasted power. Now say I can accomplish this, I can with the flip of a switch engage the brake on the wheel that's in the air cause 100% of front power to go to the wheel on the ground that still has traction.

I got this idea when watching my buddy climb a hill in his 4Runner which has what Toyota calls A-Trac that does this for all 4 wheels automatically. If it detects one wheel spinning, it gradually locks it with the breaks forcing power to be applied to the other wheel instead. you can YouTube it if it still doesn't make sense.

The why is to increase my blazers capabilities while off road
 
Old Jun 5, 2014 | 06:40 PM
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The easiest way to do that would be to set up an actual line lock solenoid on each corner, then you could have a control panel with switches to open/close the valve on each corner
 
Old Jun 14, 2014 | 08:44 PM
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An interesting theory. I did a quick search and it makes sense but it sounds like Toyota uses self-applying braking. Your thought of how it works seems like it would work but I think it's a little more complicated.
 
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