Method for stopping automated driving of a vehicle

By measuring the steering column torque and steering wheel angle, combined with the model formula of the steering system, the manual torque is estimated, and the problem of inaccurate manual torque estimation during rapid steering intervention is solved, and more reliable automated driving suspension and driver takeover detection is achieved.

CN115003585BActive Publication Date: 2025-03-21MERCEDES BENZ GRP
5 Cites 0 Cited by

Patent Information

Application Number
CN202080094889.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2020-01-29
Filing Date
2020-12-11
Publication Date
2025-03-21
Estimated Expiration
2040-12-11

AI Technical Summary

Technical Problem

The prior art In the case of rapid steering intervention, it is difficult to accurately estimate manual steering torque through steering column torque measurement, which may lead to unnecessary suspension of automated driving.

Method used

By measuring the steering column torque and steering wheel angle, combined with the steering system model formula, the moment of inertia of the steering wheel and friction torque within the steering system are estimated, and the manual torque is monitored in real time during automated driving to detect the driver's willingness to take over.

Benefits of technology

A more reliable manual torque estimation is achieved, reducing the chance of automated driving cessation, ensuring more accurate driver takeover of wish detection and autopilot deactivation.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention relates to a method for suspending an automated driving function of a vehicle (3), wherein the driving function is deactivated by a steering intervention by the driver of the vehicle (3) on a steering system comprising a steering column (1) and a steering wheel (2), wherein, in order to determine the steering intervention exerted on the steering column (1), a steering column torque (M Mess_Lenkstange ), where the steering wheel angle (δ LR ), wherein the manual torque (M Hand ) Based on the measured steering column torque (M Mess_Lenkstange ) and the measured steering wheel angle (δ LR ), wherein the estimation is based on a model formula of the steering system, which calculates the inertia moment (θ) of the steering wheel (2) LR ) and the friction torque in the steering system (M R ) shall be taken into consideration.
Need to check novelty before this filing date? Find Prior Art