Multifunctional vehicle lateral driving assistance method and its assistance system

Abstract

The present invention relates to a method for assisting lateral driving of a multifunctional vehicle and an auxiliary system thereof, which comprises the following steps: 1) setting a lateral driving assisting system for a multifunctional vehicle; 2) according to the obtained driver operation information and vehicle running state information; Determine whether the current vehicle speed V is greater than V0, if yes, enter step 3); otherwise, start the electric power steering function; 3) determine whether the driver currently operates, if not, enter step 4); otherwise, determine whether the driver currently has Lane-changing operation intention, or in lane-changing operation or lane keeping operation; 4) Judging whether the vehicle currently deviates from the lane, if yes, enter step 5); otherwise, return to step 2); 5) Implement lane departure prevention alarm assistance, and It is judged whether the driver currently has a lane departure prevention operation, if yes, return to step 2); otherwise, implement lane departure prevention assistance. The invention has complete functions, high control precision and is 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...

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

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