Whats wrong when my AC turns off and on when I hit bumps and turn?

The tempature outside, the bumps on the road and both left and right turns call cause my AC to turn off and on. The AC when running blows the cold air it always has it just that it does no stay blowing as the car runs. Turning right usually tunrs it off, if i hit one bump it tunrs it off but hit another and its on. During the moring and night it stay on a lot longer through bumps and truns and during the day it turns off easier on turns and bumps. I live in Texas and would love to have my AC work.