Vehicle override control method and system based on override mode

Abstract

The invention discloses a vehicle override control method and system based on an override mode, and the method comprises the steps: 1, obtaining a current vehicle distance D between a vehicle and a front vehicle in the override mode; and 2, judging the current vehicle distance D, a vehicle distance threshold value D1 and a vehicle distance threshold value D2, the vehicle distance threshold value D1 is the safety vehicle distance during vehicle self-adaptive cruise, the vehicle distance threshold value D1 is larger than the vehicle distance threshold value D2, and when the current vehicle distance D is larger than or equal to the vehicle distance threshold value D1, reminding a driver of performing acceleration overtaking according to the acceleration required speed; and when the current vehicle distance D is larger than or equal to the vehicle distance threshold D2 and smaller than the vehicle distance threshold D1, reminding the driver of performing acceleration overtaking according to 40%-60% of the acceleration required speed, and when the current vehicle distance D is smaller than the vehicle distance threshold D2, controlling the vehicle to be kept at the current speed for self-adaptive cruise. According to the method, whether the vehicle can overtake can be determined according to the vehicle distance between the vehicle and the front vehicle, and the overtaking speed is reasonably controlled during overtaking, so that the safety of the vehicle during running is guaranteed.

Description

technical field [0001] The invention relates to the field of vehicle control, in particular to a vehicle overtaking control method and system based on an overtaking mode. Background technique [0002] Adaptive Cruise Control (ACC: Adaptive Cruise Control) is a function of the assisted driving system. It is a technology that realizes vehicle perception, decision-making and longitudinal control through radar and camera sensor fusion technology. The start-stop following car can reduce the driver's driving fatigue to a certain extent. According to the driver's wishes, the following distance between the car and the car in front can be set through the time distance setting. [0003] During the working process of the ACC system, when following the vehicle in front to accelerate, decelerate or cruise at a constant speed, when the driver steps on the accelerator pedal to increase the speed to overtake the vehicle in front or take over the process of driving the vehicle according to t...

AI Technical Summary

Problems solved by technology

[0004] In the overtaking mode, whether the vehicle can overtake and the overtaking speed of the vehicle are closely related to the vehicle distance. If the vehicle distance is too small to overtake or even quickly overtake, there will be risks such as rear-end collisions and rollovers.

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