Method and system for control of motor vehicle longitudinal movement

A method for automated control of the longitudinal movement of a motor vehicle comprising:

• controlling an automated vehicle acceleration in a longitudinal direction of the vehicle by actuating a drive train of the motor vehicle;
• controlling an automated vehicle deceleration in the longitudinal direction of the vehicle by actuating one of a drive train and a brake system of the motor vehicle;
• determining an acceleration variable representing a vehicle setpoint longitudinal acceleration, wherein the acceleration variable is determined from a jerk value, said jerk value limited in terms of an absolute value and representing a change over time in the acceleration variable;
• said jerk value determined either in a driving mode, starting from a vehicle actual longitudinal speed and a vehicle actual longitudinal acceleration, wherein the motor vehicle is adjusted to a predeterminable vehicle longitudinal speed based on a predeterminable maximum positive driving mode vehicle longitudinal acceleration, a predeterminable maximum driving mode vehicle longitudinal deceleration, and at least one predeterminable driving mode jerk absolute value that limits the jerk value;
• or in a deceleration mode, starting from the vehicle actual longitudinal speed and the vehicle actual longitudinal acceleration, wherein the motor vehicle is braked to a stationary state within a predeterminable distance, based on a predeterminable maximum deceleration mode vehicle longitudinal deceleration and a predeterminable deceleration mode jerk absolute value that limits the jerk value;
• and
• wherein the jerk value in the driving mode is a function of at least seven acceleration zones in combination and at least three speed zones, wherein the first acceleration zone comprises a vehicle longitudinal acceleration which is above a predeterminable vehicle longitudinal acceleration tolerance range which is defined about the predeterminable maximum positive driving operating mode vehicle longitudinal acceleration, the second acceleration zone comprises a vehicle longitudinal acceleration which lies within the vehicle longitudinal acceleration tolerance range, the third acceleration zone comprises a vehicle longitudinal acceleration which lies below the vehicle longitudinal acceleration tolerance range, and above a predeterminable zero vehicle longitudinal acceleration tolerance range which is defined about a zero vehicle longitudinal acceleration, the fourth acceleration zone comprises a vehicle longitudinal acceleration which lies within the zero vehicle longitudinal acceleration tolerance range, the fifth acceleration zone comprises a vehicle longitudinal acceleration which lies below the zero vehicle longitudinal acceleration tolerance range and above a predeterminable vehicle longitudinal deceleration tolerance range which is defined about the predeterminable maximum driving mode vehicle longitudinal deceleration, the sixth acceleration zone comprises a vehicle longitudinal acceleration which lies within the vehicle longitudinal deceleration tolerance range, and the seventh acceleration zone comprises a vehicle longitudinal acceleration which lies below the vehicle longitudinal deceleration tolerance range, wherein the first speed zone comprises a vehicle longitudinal speed which lies above a predeterminable speed tolerance range which is defined about the predeterminable vehicle longitudinal speed, the second speed zone comprises a vehicle longitudinal speed which lies within the speed tolerance range, and the third speed zone comprises a vehicle longitudinal speed which lies below the speed tolerance range.