When the driver presses the brake pedal while the cruise control function is activated, the cruise control must disengage within 1 ms.
Test: Drive with cruise control activated and suddenly press the brake. The car must disengage the cruise control immediately (measure time) so that the driver has absolutely no feeling of the car still trying to accelerate while he is braking. Do the test with speeds from 20 to 170 km/h in 10 km/h steps. Do those tests with small, medium and big brake pedal pressure.
When the driver presses the brake pedal while the cruise control function is activated, the cruise control must disengage within 1 ms.
Test: Drive with cruise control activated and suddenly press the brake. The car must disengage the cruise control immediately (measure time) so that the driver has absolutely no feeling of the car still trying to accelerate while he is braking. Do the test with speeds from 20 to 170 km/h in 10 km/h steps. Do those tests with small, medium and big brake pedal pressure.