Method and apparatus are disclosed for adjustment of maximum brake pump speed based on rate of change of target deceleration. A vehicle includes a brake pump having a maximum pump speed. The vehicle also includes a vehicle decelerator to determine a target deceleration for autonomous deceleration and send a signal to the brake pump to decelerate the vehicle at the target deceleration. A maximum speed regulator determines a rate of change of the target deceleration and adjusts the maximum pump speed based on the rate of change. A further sensor may detect an object in front of the vehicle and the automatic deceleration may be determined to maintain a buffer distance between the vehicle and the object.