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Longitudinal vehicle speed control method, device, system and storage medium

A technology of longitudinal vehicle speed and control method, which is applied in the field of vehicles, can solve problems such as sudden acceleration changes, and achieve the effects of avoiding sudden changes in acceleration and improving safety and stability

Active Publication Date: 2021-06-01
WUHU LION AUTOMOTIVE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present application provides a longitudinal vehicle speed control method, device, system and storage medium, which can solve the problem of abrupt acceleration when longitudinal vehicle speed is adjusted

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  • Longitudinal vehicle speed control method, device, system and storage medium
  • Longitudinal vehicle speed control method, device, system and storage medium
  • Longitudinal vehicle speed control method, device, system and storage medium

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Embodiment Construction

[0056]In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0057] The terms involved in this application are explained as follows:

[0058] Autonomous driving system: refers to an intelligent system that uses advanced communication, computer, network and control technologies to realize unmanned driving of vehicles. The automatic driving system includes environmental perception, logical reasoning and decision-making, motion control, processor performance, etc., and can realize functional control of the vehicle such as starting, driving, changing lanes, steering, parking, and reversing; schematically, the automatic driving system The system can control the adjustment of the accelerator opening and the friction force of the brake to realize the adjustment of the longitudinal speed of the veh...

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Abstract

The application discloses a longitudinal vehicle speed control method, device, system and storage medium, which are applied in the field of vehicle technology. Vehicle speed and current longitudinal vehicle speed; predict the target driving mode at the next moment by obtaining the historical driving mode and historical acceleration; based on the mapping relationship between the longitudinal vehicle speed and the control amount in the target driving mode, determine the expected longitudinal vehicle speed and the current longitudinal speed The target control amount corresponding to the vehicle speed, and adjust the longitudinal speed of the vehicle according to the target control amount. Since the corresponding relationship between the longitudinal speed and the control amount set in different driving modes is different, the adjustment of the longitudinal speed is consistent with the motion characteristics of the vehicle in the corresponding driving mode. For example, the adjustment of the longitudinal speed conforms to the current acceleration change, avoiding acceleration Mutated situations improve the safety and stability of autonomous driving.

Description

technical field [0001] The present application relates to the technical field of vehicles, in particular to a method, device, system and storage medium for controlling longitudinal vehicle speed. Background technique [0002] In the motion control of the vehicle, in order to ensure the comfort, safety and stability of the vehicle, the control of the longitudinal speed is very important. [0003] Generally, the longitudinal speed of the vehicle is controlled by the real-time adjustment of the accelerator and the brake through a classic proportional-integration-differentiation (PID) controller. The classic PID controller adjusts the longitudinal vehicle speed by calculating the PID parameters, so that the longitudinal vehicle speed is close to the expected value. [0004] However, the adjustment of the longitudinal vehicle speed by the classic PID controller is only based on the speed change, and there is a sudden change in the acceleration when the longitudinal vehicle speed...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W30/14B60W40/105B60W30/02
CPCB60W30/02B60W30/143B60W40/105
Inventor 贺容波杜金枝安博宋玉鹏张殿坤
Owner WUHU LION AUTOMOTIVE TECH CO LTD