The imperative in English

Three doppler radar sensors acting in conjunction with computing apparatus produce signals related to the forward and lateral velocities of the vehicle with respect to the road surface, and to the lateral velocity of the vehicle rear end. Hydraulic pressure in the vehicle front brake cylinders is reduced to prevent skidding of the vehicle if the brake pedal is depressed, and the product of the forward velocity of the vehicle and the angular displacement of the steering wheel minus the lateral velocity of the vehicle is greater than the forward velocity. Similarly, hydraulic pressure in the rear brake cylinders is reduced if the brake pedal is depressed, and the lateral velocity of the vehicle rear end is greater than the forward velocity.