Arterius2
Well-Known Member
- First Name
- Jerry
- Joined
- Dec 29, 2018
- Threads
- 42
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- 3,556
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- 4,828
- Location
- Vancouver, BC
- Vehicle(s)
- 2018 JLU Sahara 2.0L
Except in this scenario, we aren't using brake pads to brake.You're correct but I think also missing a bit of what he's saying. When a car stops, the majority of the breaking is done by the front wheels. This is intentional since the weight shifts forward, putting more weight on the front wheels, and allowing more braking power in the front before you reach the point where the tires would break loose and trigger the ABS. This is why the disc brakes are bigger on the front of the car. What Jahysea is saying, is that when the front drivetrain is not engaged - and therefore has no physical connection to the regen, the front wheels still need to do more than half the braking, and you'd therefore still have to be using the front brake pads. On a hybrid or electric car that is front wheel drive however, the front wheels will always be engaged and therefore you can achieve your increased front brake bias using the regen. If your regen is only able to take place through the rear wheels, then in order to maintain your increased front brake bias you have to rely more on the brake pads.
We are using a singular electric motor through the transmission to brake. When on max regen, the maximum braking force or resistance of this electric motor is constant regardless of how many wheels are driving it. Same amount of power is sent through the front wheels or rear, they both have go through a single point of entry, which is the transmission.
Again, the only time AWD would aid regen braking would be if the rear wheels are losing traction, and thus not sending maximum power through the drive-train, that's where the front wheels can help provide additional friction.
Under normal driving conditions, I do not believe the braking force of the electric motor would cause the rear wheels to lose traction.
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