Longitudinal vehicle speed driving control method and device

The invention discloses a longitudinal vehicle speed driving control method and device. The method includes: acquiring a target speed, a preset acceleration and a current first speed of a vehicle; based on the target vehicle speed, the preset acceleration and the first vehicle speed, obtaining acceleration time for accelerating the vehicle from the first speed to the target vehicle speed; calculating a second speed of the vehicle under each time step in the acceleration time and a first acceleration of the vehicle under every two adjacent time steps based on the acceleration time, and obtaining a first torque corresponding to the first acceleration based on the first acceleration and a preset first corresponding relation between the acceleration of the vehicle and the torque; and for each time step, based on the second speed, the first speed of the vehicle under the time step and the first torque, a target torque of the vehicle under the time step is determined, and the target torque is used for driving the v