Method and system for displaying vehicle speed

Abstract

The invention discloses a vehicle speed display method, which includes inputting the set value of the active speed limit when the active speed limit function is started; the engine controller obtains the set value of the user's active speed limit; The fixed value is sent to the instrument, and the instrument directly displays the received set value; the amplification algorithm when the instrument displays the vehicle speed is obtained, and the engine controller performs the amplification algorithm when the instrument displays the vehicle speed according to the current active speed limit setting value. The reverse operation is performed to obtain the target value of the vehicle speed corresponding to the setting value of the active speed limit, and the engine controller controls the vehicle speed with the target value. The invention has the advantages that: when setting the vehicle speed, the instrument directly displays the set vehicle speed; after the setting, the engine controller receives the set value of the vehicle speed of the active speed limit, and calculates the target vehicle speed according to the reverse calculation of the current set vehicle speed according to the amplification algorithm of the instrument, The set vehicle speed displayed by the instrument, the current displayed vehicle speed and the actual vehicle speed can be coordinated and unified.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a vehicle speed display method and system of a vehicle with an active speed limit function. Background technique [0002] With the development of automobile technology, there are more and more configurations of various comfort and safety features, and the active speed limit function is one of the configurations of safety types. For vehicles with this function, the maximum speed can be set by the user not to exceed a certain set value, so that even if the accelerator is pressed to the bottom during the vehicle driving process, the actual speed of the vehicle will not exceed the set value to avoid overspeeding. [0003] However, the current instrument speed display, according to legal requirements, is larger than the actual speed. If the vehicle controls the actual speed according to the maximum speed displayed by the instrument when set by the user, the vehicle speed displayed...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a vehicle speed display method and system, which can solve the defect of the active speed limit function failure brought to the user when the vehicle speed display is slightly higher than the set speed

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