A vehicle hybrid intelligent speed limit control method and device

Abstract

The invention discloses a hybrid intelligent speed limit control method and device for a vehicle. The steps of the method include: S1. Real-time perception of the state information of the current vehicle itself, the environment information of the current vehicle, and the state of the vehicle in front during the driving process of the current vehicle Information, relative distance information between the current vehicle and the vehicle in front; S2. Determine the minimum braking distance of the current vehicle in real time according to the information sensed in step S1. When the relative distance information is less than the minimum braking distance, go to step S3; S3. Use The minimum braking distance determines the current speed limit of the vehicle, and the auxiliary control adjusts the brake pedal force and brake pedal stroke of the current vehicle according to the currently determined speed limit. The invention can realize the adaptive man-machine hybrid intelligent speed limit control of the vehicle according to the environment change of the vehicle, and has the advantages of simple realization method, high degree of intelligence, high safety and reliability, and the like.

Description

technical field [0001] The invention relates to the technical field of vehicle intelligent control, in particular to a vehicle hybrid intelligent speed limit control method and device. Background technique [0002] At present, the speed limit control of vehicles is usually realized through the design of the vehicle's own speed limit mechanical structure, and the speed limit mechanical structure can only limit the speed mechanically, and cannot perform intelligent control adjustments according to different environments and road conditions. Especially in the case of sudden heavy rain, dense fog, hail, etc. when driving on the expressway, due to the inertial operation of people, it will make it impossible to control the speed of the vehicle in time, resulting in potential danger, or when the vehicle is running at high speed, the front suddenly encounters At an intersection or entering a rural road section, due to the inertial operation of people, there will be a large understee...

AI Technical Summary

Problems solved by technology

[0004] But above-mentioned vehicle speed limit control method still can have following defect: the applicable speed of vehicle is all different under different position, different weather conditions, enters such as front school, ring road, ahead under bad weather such as rain, snow and heavy fog. In special areas such as intersections, the safe driving speeds of applicable vehicles are different. For example, on rainy highways and rainy country roads, the above-mentioned simple speed limit method based on vehicle instrumentation and sensor information can only be applied to specific environments or simple It is impossible to meet the different requirements for vehicle restrictions in various environmental conditions, resulting in potential safety hazards in special locations under severe weather conditions.

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