Road identification system and method based on vehicle vertical vibration system identification

Abstract

The invention discloses a road identification system and method based on vehicle vertical vibration system identification. The road identification system based on the vehicle vertical vibration system identification is mainly composed of a sensor signal acquisition module, a sensor signal processing module, a system identification module, a self-adaptive state observation module, a road space process generating module, a road characteristic parameter extraction module and a road classifier. The sensor signal processing module, the system identification module, the self-adaptive state observation module, the road space process generating module, the road characteristic parameter extraction module and the road classifier are integrated in an ECU (electronic control unit) chip and communicated with one another through a bus, and the sensor signal acquisition module is subjected to data transmission with the ECU chip through a wire harness. The road identification system and method based on the vehicle vertical vibration system identification aims at providing a method and a measuring system which are capable of estimating road types conveniently, rapidly and relatively accurately to solve the defect that an existing road identification technology cannot adapt to the changes of vehicle system parameters.

Description

technical field [0001] The invention belongs to the technical field of road surface recognition in vehicle engineering, and in particular relates to a system and method for identifying vehicle vibration system parameters and road surface recognition by using vertical vibration signals when the vehicle is running. Background technique [0002] With the continuous development of automobile technology, people's requirements for vehicle performance are also getting higher and higher. In such a big environment, semi-active suspension technology, active suspension technology and ABS technology came into being. These new technologies have improved the comfort and safety of vehicles to a certain extent. If the type of road surface can be identified according to the driving status signal of the vehicle, the control logic in the above-mentioned new technology can be optimized to a large extent, thereby further improving the performance of the vehicle. [0003] Scholars at home and a...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a simple, fast and more accurate method for estimating the road surface type and its measurement system, which can effectively improve the shortcomings of the existing vehicle road surface recognition technology that cannot adapt to changes in vehicle system parameters

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