A method and device for controlling vehicle operation based on automatic driving

Abstract

The invention discloses a vehicle running control method based on automatic driving. The control method includes: obtaining road state information ahead of the vehicle running through a vehicle external sensor; Road radius and slope; according to the state information of the road ahead, calculate the stable driving envelope when the vehicle is driving on the road ahead; the stable driving envelope includes the maximum vehicle speed and steering angle that satisfy the stable driving of the vehicle; Controlling the vehicle to run at a first vehicle speed and a first steering angle when automatically driving to the road ahead according to the stable driving envelope, wherein the first vehicle speed and the first steering angle meet the requirements for stable driving of the vehicle . This method can estimate the state of the road surface in advance, reduce the probability of an autonomous vehicle entering an unstable state, and improve driving safety.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of automobiles, and in particular to a method and device for controlling vehicle operation based on automatic driving. Background technique [0002] The automotive electronic stability control system is a new type of active safety system for vehicles. It is a further expansion of the functions of the anti-lock braking system and traction control system of the vehicle. On this basis, the yaw rate sensor and lateral acceleration The sensor and the steering wheel angle sensor control the driving force and braking force of the front, rear, left and right wheels through the micro-control unit to ensure the lateral stability of the vehicle. [0003] The existing vehicle body electronic stability system evaluates the state of the vehicle body based on sensors such as wheel speed sensors and yaw angle sensors, and performs remedial control when the vehicle body becomes unstable. The existing b...

AI Technical Summary

Problems solved by technology

The existing body electronic stability system has complex algorithms and cannot predict the road state in advance. It cannot calculate the actual road state well under many working conditions such as bumps, local road slip rate is too low, the vehicle is driven aggressively, and the vehicle is off-road. , under the premise that the driver's behavior cannot be controlled, all controls are remedial measures after the vehicle loses stability

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