METHOD OF PREVENTING VEHICLE COLLISION WITH OBSTACLE AND DEVICE TO THIS END Russian patent published in 2011 - IPC G01S13/93 

FIELD: transport.

SUBSTANCE: proposed method comprises determining critical safe distance at given speed in compliance with the following expression: where S_cur is current distance to obstacle, V_app in approach speed, S_br is forecast braking distance determined on short-term depressing brake pedal in compliance with the following expression: where V₀ is initial braking speed, km/h; τ_c is braking system delay; τ_inc is delay increase interval; j_s-st is steady-state increase, m/s². Braking system delay is determined in compliance with expression τ_c=τ_r+τ_inc where τ_r is driver reaction time, τ_inc is delay increase interval. Driver reaction time is determined periodically in preset intervals proceeding from recording intervals between receiving command signal on pedal depression and pedal depression by driver.

EFFECT: higher safety.

3 cl, 2 dwg