How to get the steering wheel angle when the driving vehicle is turning

Abstract

The invention discloses a method for obtaining a steering wheel angle during turning of a driving vehicle, and belongs to the field of Internet of vehicles, for solving the problem of a steering wheel angle during turning of a driving vehicle. The main technical point is that the method comprises the following steps: S1, in case of a vehicle static state, when a steering wheel is in place, finding data frames which always maintain unchanged in interaction data of a vehicle intranet, and recording IDs where the data frames are located, wherein the data frames under the IDs are data with data bits being locked when the vehicle steering wheel is in place; S2, in case of the vehicle static state, when the steering wheel is rotated to a limit, from the data frames at the IDs where the data frames recorded in step 2.1 are located, finding data frames with starting change, recording the IDs again, wherein data included by the data frames under the IDs is the data with the data bits being locked when the steering wheel is rotated to the limit; and S3, pre-estimating a mathematic model which the data with the data bits being locked accords with. The method provided by the invention has the advantage of realizing real-time, accurate and rapid obtaining of the steering wheel angle when the driving vehicle takes a turn.

Description

technical field [0001] The invention relates to a method for obtaining the angle of the steering wheel, in particular to a method for obtaining the angle of the steering wheel when the vehicle is turning. Background technique [0002] OBD (On-Board Diagnostic, on-board diagnostic system product) technology first originated in the United States in the 1980s. It was originally installed by the government to monitor vehicle exhaust emissions. Control unit (ECU), ECU has the function of detecting and analyzing emission-related faults. [0003] At present, most of the Internet of Vehicles products on the market are realized through the OBD interface, and the real Internet of Vehicles terminal must be connected to the network from the CAN bus, that is, the electronic bus inside the car, in order to obtain the complete data of the vehicle. [0004] The monitoring frequency of OBD-based products is calculated in minutes, while the occurrence of the owner's actions in the actual dri...

AI Technical Summary

Problems solved by technology

[0004] The monitoring frequency of OBD-based products is calculated in minutes, while the actual driving process of the owner's actions is calculated in seconds or even millimeters, so OBD-based in-vehicle products cannot accurately obtain real-time data

Images