| Domestic safety auxiliary equipment at the present time of dispersion,lead to system installation complex,expensive,and mutual interference between system faults,and such as error protected system on the accelerator research has yet to mature,this paper studies a set of reversing radar,the radar of driving and error prevention function in the integration of road safety auxiliary device on the accelerator.Firstly,this paper discusses and constructs the principle composition of anti-misstep throttle module.Based on the analysis of the judgment factors of the wrong foot pedal,the voltage peak value,the change rate of the voltage peak value and the distance between the vehicle and the obstacle under the pedal pedal were determined as the judgment basis of the wrong foot pedal,and the threshold of the wrong foot factor was obtained through the experiment.Secondly,based on the hardware circuit diagram of the STM32 MCU core control module and each functional sub-module designed by Altium Designer,the software realization method and control process of each functional sub-module were studied,the integrated control method of the system was studied,and the STM32 control program was written in the integrated compilation environment of Keil abortion Vision.By means of data sharing and interactive system sharing,the anti-misstep throttle system is integrated with reversing radar and driving radar.At last,the actual production of the system was completed and the test was carried out.The test results showed that the designed driving safety auxiliary system could accurately identify the misstep behavior and control the engine to enter the idling working state when the driver mistakenly put the accelerator as the brake,and at the same time give voice alarm prompt.The driving safety auxiliary system designed in this paper has low cost and is easy to be popularized,which is of certain significance to guarantee the driving safety of cars and reduce the danger of accidents. |
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