Man-machine permission switching method based on steering wheel grip

A steering wheel and human-machine technology, applied to the steering control, control device, handwheel, etc. installed on the car, can solve the problems of the degree of intelligence to be improved, achieve enhanced reliability and safety, simple hardware structure, and strategic reasonable effect

Active Publication Date: 2019-12-13
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, there is also an adaptive intelligent steering system for automobiles, which can be switched between automatic and manual modes, but the switching process requires pressing the manual / automatic transition switch to switch, and its intelligence needs to be improved

Method used

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  • Man-machine permission switching method based on steering wheel grip
  • Man-machine permission switching method based on steering wheel grip
  • Man-machine permission switching method based on steering wheel grip

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Experimental program
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Embodiment Construction

[0031] Such as figure 1 , 2 , Shown in 3, 4, a kind of man-machine authority switching method based on steering wheel grip, this method comprises the steps of following order:

[0032] (1) Detect the driver's grip by the pressure sensor arranged between the steering wheel 4 and the holster 5, the pressure sensor includes a first pressure sensor 1 installed on the top of the steering wheel 4, a second pressure sensor installed on the left side of the steering wheel 4 A pressure sensor 2 and a third pressure sensor 3 installed on the right side of the steering wheel 4;

[0033] (2) The voltage conversion module 6 converts the resistance signal sent by the pressure sensor into a voltage signal;

[0034] (3) The single-chip microcomputer 7 reads the above-mentioned voltage signal, and converts the voltage signal into a corresponding pressure value according to the characteristics of the pressure sensor;

[0035] (4) The single-chip microcomputer 7 detects the ownership of the c...

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PUM

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Abstract

The invention relates to a human-machine authority switching method based on steering wheel grip strength, which comprises the following steps in sequence: detecting driver grip strength through a pressure sensor; converting a resistance signal emitted from the pressure sensor into a voltage signal; reading the voltage signal and converting the voltage signal into a corresponding pressure value according to the characteristics of the pressure sensor; detecting ownership of the current vehicle control right; judging whether the signals emitted by the three pressure sensors reach the switching condition; judging whether the driver is out of the driving state and judging whether the steering wheel should be taken over by the auxiliary system; sending the determination result of the switchingstrategy to the auxiliary system controller. The invention also discloses a device for realizing human-machine authority switching method based on steering wheel grip. The invention can monitor the driver's state in real time through the change of the grip force exerted by the driver on the steering wheel, judge whether the driver is out of the driving state and whether the steering wheel is intended to be taken over. The strategy is reasonable, the hardware structure is simple, and the reliability and the safety of the system can be enhanced.

Description

technical field [0001] The invention relates to the technical field of automobile safety driving, in particular to a man-machine authority switching method based on steering wheel grip. Background technique [0002] In order to ensure the safety of vehicles and improve the driving experience of drivers, a variety of intelligent driving assistance systems have been developed at home and abroad, such as lane keeping assistance systems and lane departure assistance systems. When the auxiliary system is working, if the driver tries to avoid obstacles in an emergency or perform a lane change operation, it is easy to cause a control conflict between the two. Switching of control privileges between members. [0003] For smart cars at the third level, the authority switching strategy is the last guarantee to ensure that the driver takes over the steering wheel and avoids danger in an emergency. It determines whether the auxiliary system takes over the steering wheel by judging whe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W50/00B62D1/06
CPCB60W50/00B60W2050/007B62D1/06
Inventor 王其东丁雨康赵林峰谢有浩陈无畏姜武华
Owner HEFEI UNIV OF TECH
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