Method for constructing multi-dimensional dynamic mathematical model of vehicle headlamp

Abstract

The embodiment of the invention discloses a method for constructing a multi-dimensional dynamic mathematical model of a vehicle headlamp, and particularly relates to the technical field of vehicles, which comprises the following steps of: 1, collecting data such as the speed of a test vehicle, the height of a vehicle body and the turning angle of the running vehicle, and establishing a digital model of the test vehicle according to the collected data; analyzing dimension information of each side of the vehicle headlamp by adopting a numerical analysis method through acquired information in combination with a use scene of the vehicle headlamp, researching the change state of the vehicle headlamp during single signal conversion in transverse, longitudinal or corner directions in an off-linestate, and further researching a multi-dimensional static mathematical model of the headlamp and components. Based on a multi-dimensional dynamic mathematical model, the safety problem that a traditional vehicle headlamp cannot automatically adjust parameters such as the irradiation distance and the light and shade degree along with changes of vehicle speed and turning is solved.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of automobiles, in particular to a method for constructing a multi-dimensional dynamic mathematical model of automobile headlights. Background technique [0002] With the continuous improvement of automobile technology, the market has higher and higher requirements for automobile safety. Especially in the active safety of automobiles, it can effectively avoid traffic accidents in automobiles. As the main lighting source of automobiles driving at night, the safety work of automobile headlights directly affects the driver's perception and judgment of the driving environment, which is related to the driver and Pedestrian life safety. [0003] The prior art has the following deficiencies: in the actual driving process, due to dynamic uncertain factors such as roads, environment and driver's own problems, the existing headlights of automobiles simply install the lighting headlights on t...

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Problems solved by technology

[0004] For this reason, the embodiment of the present invention provides a kind of multi-dimensional dynamic mathematical model building method of automobile headlights, the information obtained by collecting, combined with the use scene of automobile headlights, adopts numerical analysis method to analyze the various aspects of automobile headlights Dimensional information, study the changing state of the headlights of the car when a single signal changes in the horizontal, vertical or corner directions in the offline state, and then study the multi-dimensional static mathematical model of the headlights and components, based on the static mathematical model in the offline state, Combined with the vehicle dynamics model, considering the real-time changes of the vehicle's cornering angle, vehicle speed, and body height when the vehicle is driving, and considering factors such as the horizontal and vertical irradiation angles of the headlights, a multi-dimensional model of the forward, longitudinal, and camber of the headlights and components is built. Dimensional dynamic mathematical model, based on a multi-dimensional dynamic mathematical model, solves the safety problem that traditional automobile headlights cannot automatically adjust parameters such as irradiation distance and brightness with changes in vehicle speed and turning

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