Constant speed system based on navigation map data and constant speed method based on navigation map data

Abstract

A constant speed system based on navigation map data is used for executing a constant speed method based on the navigation map data. The constant speed method comprises the following steps: receivinga constant speed set value and a current vehicle speed to execute a vehicle speed control operation; capturing a driving image; displaying the driving image, and superposing the current vehicle speed,the constant speed set value and an execution state of the vehicle speed control operation in the driving image; loading map data, receiving a current positioning coordinate, and obtaining a map dataspeed limit value from the map data according to the current positioning coordinate; comparing the constant speed set value with the map data speed limit value; when the difference value between theconstant speed set value and the map data speed limit value exceeds a threshold value, a constant speed selection prompt is generated; displaying a constant-speed selection prompt through a first display interface; and receiving a constant speed selection, and adjusting the constant speed set value according to the constant speed selection.

Description

technical field [0001] The invention relates to constant speed cruising and vehicle distance control, in particular to a speed constant system and a speed constant method based on navigation map data. Background technique [0002] Although the existing Active Cruise Control (Adaptive Cruise Control, ACC) system is enabled and the quick setting buttons are all set on the steering wheel, it is beneficial for the driver to keep his eyes on the front and keep his hands off the steering wheel. conduct. However, the information provided by the existing ACC system is relatively complicated, and the relevant setting or operation information is displayed on the display of the center console. [0003] Although the above-mentioned monitor of the center console can display complete information, for the driver, the line of sight often deviates from the front and affects driving safety instead. In addition, although the ACC system actively adjusts the constant speed according to the dri...

AI Technical Summary

Problems solved by technology

However, the information provided by the existing ACC system is relatively complicated, and the relevant settings or operating information are all displayed on the display of the center console

[0003] Although the above-mentioned monitor in the center console can display complete information, for the driver, the line of sight often deviates from the front, which will affect driving safety

In addition, although the ACC system actively adjusts the constant speed according to the driving status of the vehicle in front, if the vehicle in front continues to exceed the speed limit of the regulation, the ACC system will follow the vehicle in front and make the vehicle exceed the regulation. speeding speeding

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