Vehicle speed displaying method and system

Abstract

The invention discloses a vehicle speed displaying method which comprises the steps that under the situation that a positive speed limiting function is started, a set value of positive speed limitingis input; the set value of positive speed limiting by a user is obtained through an engine controller; the set value of positive speed limiting is sent into an instrument through the engine controller, and the received set value is directly displayed through the instrument; and a magnifying algorithm of the instrument during vehicle speed displaying is obtained, according to the current set valueof positive speed limiting, the engine controller conducts reverse operation during vehicle speed displaying by the instrument, the vehicle speed target value corresponding to the set value of positive speed limiting is obtained, and the vehicle speed of a vehicle is controlled by the engine controller according to the target value. The vehicle speed displaying method has the advantages that during vehicle speed setting, and the set vehicle speed is directly displayed by the instrument; and after setting, the vehicle speed setting value of positive speed limiting is received through the enginecontroller, and the current set vehicle speed is reversely calculated according to the magnifying algorithm of the instrument to obtain the target vehicle speed to enable the set vehicle speed displayed by the instrument, the current displayed vehicle speed and the practical vehicle speed to 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 for vehicles 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, 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 the actual speed of the vehicle will not exceed the set value even if the accelerator is pressed to the bottom during driving, so as to avoid overspeeding. [0003] However, the current instrument speed display, according to the regulations, is larger than the actual vehicle speed. If the vehicle controls the actual vehicle speed according to the maximum speed displayed by the instrument when the user sets it, the vehicle speed displayed on the i...

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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