Anti-mistaken stepping device of automobile accelerator

Abstract

The invention discloses an anti-mistaken stepping device of an automobile accelerator. When performing emergency braking, the anti-mistaken stepping device controls a servo motor to drive a brake pedal through a DSP so as to precisely control the brake pedal pull speed and angle to precisely control the brake process of the automobile. The whole system has higher reliability and response speed; the DSP controls an automobile microcomputer controller to close a a throttle valve, so that the response speed is very fast; because the anti-mistaken stepping system is usually used for the emergency situation, the response speed of the system is very important, and the higher response speed further improves the safety assurance for the driver; the DSP serves as a signal processing controller, and an acceleration sensor and a radar sensor are directly connected with the DSP; compared with a single chip, the integration level of the DSP is higher, the CPU is faster, and accordingly the response speed and the reliability of the system are higher.

Description

technical field [0001] The invention relates to the field of automobile safety protection, in particular to an automobile gas pedal anti-misstepping device. Background technique [0002] At present, with the continuous improvement of people's living standards and the rapid growth of car ownership, more and more people choose to travel by car, and accordingly, traffic accidents also increase. According to statistics, 70% to 90% of traffic accidents are caused by driver's misoperation, and the accidents caused by the driver's stepping on the accelerator by mistake account for 12.6% of the total accident ratio. According to NISSAN company reports, about 7,000 accidents are caused by mistakenly stepping on the accelerator pedal as a brake pedal in Japan every year. Since the automatic transmission car does not have a clutch pedal, it cannot use the clutch to cut off the power like a manual transmission car. Both the accelerator and the brake pedal are controlled by the right fo...

AI Technical Summary

Problems solved by technology

[0004] Summarizing the above two types of anti-acceleration devices, there are mainly the following deficiencies: (1) The device is developed according to the mechanical principle, and the judgment conditions are single, and it is impossible to accurately judge the real purpose of the driver stepping on the gas pedal. The force is also different, so the reliability and practicability of the system are not high

(2) Electronic control devices based on single-chip microcomputers have relatively single judgment conditions, low accuracy and reliability, and the key technologies are still immature, and most of them only have scheme design

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