powerbrake?
anyway, power brake/brake torque u just do as above...it'll raise rpm up to the stall speed of the torque limiter...usually set right around or before the start of the torque plateau....
About using your brakes to hold the car while you use the accelerator pedel to bring engine revolutions up, I have not heard this referred to as power braking, but you could be correct. Your maximum engine speed is limited when you do this to what is called your cars "stall speed".






