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Assisting method for transverse driving of multipurpose automobile and assisting system therefor

A driving assistance system and driving assistance technology, applied in steering mechanisms, steering rods, vehicle components, etc., can solve problems such as erroneous interference, limited system promotion, and single system function, and achieve complete safety functions, wide application range, and control accuracy. high effect

Inactive Publication Date: 2009-12-09
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned automotive lateral driving assistance systems can avoid accidents to a certain extent and improve driving safety performance, but most of the system functions are relatively single, and are used for driving information recording, assisted steering, assisted maintenance, danger alarm or interference prevention, etc. narrow range
Some systems integrate some auxiliary functions, such as electric power steering, lane keeping assistance, and lane departure warning, but lack of precise function coordination control methods, thus easily causing the system to erroneously interfere with the driver's operation, affecting the driver's acceptance of the system sex
At the same time, the development of hardware devices for each lateral driving assistance system requires a lot of investment and high cost, and the singleness of its functions further limits the promotion of the system
More importantly, the system with auxiliary operation function also needs to change the algorithm of the vehicle steering system controller, so that the controller can receive a variety of sensor information, and add a security strategy module and a control module to realize the control of the steering torque. Multiple functions, and the controller algorithm is the core secret of automobile manufacturers. For third-party manufacturers developing automotive lateral driving assistance systems, it is difficult to realize the embedded installation of auxiliary systems for ordinary vehicles

Method used

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  • Assisting method for transverse driving of multipurpose automobile and assisting system therefor
  • Assisting method for transverse driving of multipurpose automobile and assisting system therefor
  • Assisting method for transverse driving of multipurpose automobile and assisting system therefor

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Embodiment Construction

[0026] The present invention will be described in detail below in conjunction with the embodiments.

[0027] Such as figure 1 Shown, the inventive method comprises the following steps:

[0028] 1) A multifunctional vehicle lateral driving assistance system is provided, which includes an information collection device 1, an image processing device 2, a main controller 3, an alarm actuator 4, an EPS controller 5 and an executive motor 6. The vehicle speed critical value V at the time of function switching is preset in the main controller 3 0 , critical value of rotation angle change Δθ 0 , Torque critical value T 0 , the driver's no-operation parameter N, the driver's no-operation intention critical value N 0 , Lane Departure Threshold TLC 0 , the calculation module of the crossing time TLC and the calculation module of the lateral speed of the ego vehicle.

[0029] Among them, the calculation module of cross-track time TLC is: TLC = ...

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Abstract

The invention relates to an assisting method for transverse driving of a multipurpose automobile and an assisting system therefor, comprising the steps as follows: 1. setting a transverse driving assisting system of the multipurpose automobile; 2. judging whether the current vehicle velocity V is larger than V0 according to obtained driver operation information and the self running state information of the vehicle, if yes, entering step 3, otherwise starting electric assisting reversing function; 3. judging whether the driver operates or not, if no, entering step 4, otherwise judging that the driver at present has operation intention of changing the lane or is in the operation of changing the lane or operation of maintaining the lane; 4. judging whether the vehicle deviates from the lane or not, if yes, entering step 5, otherwise returning to step 2; and 5. implementing lane deviation proof alarm assistance, and judging whether the driver executes lane deviation proof operation or not, if yes, returning to step 2, otherwise implementing lane deviation proof assistance. The invention is complete in functions, high in control accuracy and easy to be accepted by drivers.

Description

technical field [0001] The invention relates to the technical field of self-driving assistance, in particular to a multifunctional vehicle lateral driving assistance method and an assistance system thereof. Background technique [0002] Automobile lateral driving assistance technology is an important aspect of transportation safety assurance technology and an important means to improve driving safety. According to the statistics of the U.S. Federal Highway Administration, 44% of all fatal traffic accidents in the United States in 2002 were related to lane departure, and only adding lane departure warning can avoid 30-70% of such traffic accidents. [0003] At present, domestic and foreign automobile lateral driving assistance systems mainly include driving recorder system, EPS system, lane keeping assist system, lane departure assist system and lane changing safety assist system, etc. The driving recorder system is a digital electronic recording device that can record and s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/12B60W40/08B60W40/10B60W40/06B60W50/08B62D6/00B62D101/00B62D111/00B62D113/00B60W40/105
Inventor 李克强刘志峰王建强易世春
Owner TSINGHUA UNIV
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