System and method for evaluating the behavior of a vehicle component

Patent metadata

Field	Value
Publication number	US-12594941-B2
Application number	US-202017785156-A
Country	US
Kind code	B2
Filing date	Dec 29, 2020
Priority date	Jan 8, 2020
Publication date	Apr 7, 2026
Grant date	Apr 7, 2026

Abstract

A method for evaluating the behavior of a vehicle component, including: issuing a control signal by a control unit of a motor vehicle to a vehicle component; detecting a response of the motor vehicle to the control signal; determining the behavior of the vehicle component; classifying the behavior of the vehicle component; and adapting the actuation of the motor vehicle component by the control unit. Also described is a related system.

First claim

The invention claimed is:

1 . A method for evaluating a behavior of a vehicle component of a vehicle, the method comprising:
issuing a control signal by a control unit of the vehicle to the vehicle component, wherein the vehicle component is a steering system or a brake system, and wherein the control signal is a steering intervention signal to the steering system or a brake signal to the brake system; detecting a response of the vehicle component and the vehicle to the control signal; determining the behavior of the vehicle component based on the detected response to the issued control signal, the determined behavior being a dead time, the dead time being a length of time from when the control signal was issued to the vehicle component until a time when the vehicle component became effective in response to the issued control signal; classifying the determined behavior of the vehicle component; and adapting an actuation of the vehicle component by the control unit based on a result of the classifying; wherein the vehicle component is a brake system of the vehicle or a steering system of the vehicle, wherein the behavior of the vehicle component changes as a result of wear to the vehicle component, and wherein the wear influences control performance of an automatic or autonomous control of the vehicle, and wherein the actuation of the vehicle component is adapted to the changes in the behavior of the vehicle component to improve the control performance of the vehicle component.

2 . The method of claim 1 , wherein the detecting, the determining and the classifying are carried out by the control unit.

3 . The method of claim 1 , wherein the detecting of the response includes an acceleration detection, a rotation detection, or a tilt detection.

4 . The method of claim 1 , further comprising:
transmitting the detected response of the vehicle in the form of information via a data transmission network to an external information system having a processing unit, the determining and the classifying being carried out by the processing unit; and transmitting information about the classified vehicle component behavior to the control unit via the data transmission network.

5 . The method of claim 1 , wherein the vehicle component is the steering system, the control signal is the steering intervention signal, and the detecting of the response includes detecting a rotation of the vehicle caused by a steering intervention or a tilt of the vehicle caused by the steering intervention.

6 . The method of claim 1 , wherein the vehicle component is the braking system, the control signal is the brake signal to the brake system, and the detecting of the response include detecting a negative longitudinal acceleration caused due to a braking engagement.

7 . A system for evaluating a behavior of a vehicle component of a vehicle, comprising:
a control unit; at least one sensor for detecting a behavior of the vehicle and the vehicle component; and the vehicle component, which is controlled; wherein the control unit is configured to perform the following:
issuing a control signal by the control unit of the vehicle to the vehicle component, wherein the vehicle component is a steering system or a brake system, and wherein the control signal is a steering intervention signal to the steering system or a brake signal to the brake system;
detecting a response of the vehicle to the control signal;
determining the behavior of the vehicle component based on the detected response to the issued control signal, the determined behavior being a dead time, the dead time being a length of time from when the control signal was issued to the vehicle component until a time when the vehicle component became effective in response to the issued control signal;
classifying the detected behavior of the vehicle component; and
adapting an actuation of the vehicle component by the control unit;
wherein the vehicle component is a brake system of the vehicle or a steering system of the vehicle, wherein the behavior of the vehicle component changes as a result of wear to the vehicle component, and wherein the wear influences control performance of an automatic or autonomous control of the vehicle, and wherein the actuation of the vehicle component is adapted to the changes in the behavior of the vehicle component to improve the control performance of the vehicle component.

8 . The system of claim 7 , wherein the at least one sensor includes the control unit or the at least one controlled vehicle component, or is a separate component or integral part of another component which is connected to the control unit via a data connection.

9 . The system of claim 7 , wherein the at least one sensor includes an acceleration sensor, or a rotation sensor, or a tilt sensor.

10 . The system of claim 7 , further comprising:
an external information system having a data processing unit; and a data network interface, via which a communication link is establishable to the external information system using the processing unit.

11 . The system of claim 10 , wherein the data network interface includes the control unit or is a separate component or integral part of another component which is connected to the control unit via a data connection.

12 . The system of claim 7 , wherein the vehicle component is the steering system, the control signal is the steering intervention signal, and the detecting of the response includes detecting a rotation of the vehicle caused by a steering intervention or a tilt of the vehicle caused by the steering intervention.

13 . The system of claim 7 , wherein the vehicle component is the braking system, the control signal is the brake signal to the brake system, and the detecting of the response include detecting a negative longitudinal acceleration caused due to a braking engagement.

14 . A method for evaluating a behavior of a vehicle component of a vehicle, the method comprising:
issuing a control signal by a control unit of the vehicle to the vehicle component, wherein the vehicle component is a steering system or a brake system, and wherein the control signal is a steering intervention signal to the steering system or a brake signal to the brake system; detecting a response of the vehicle component and the vehicle to the control signal; determining the behavior of the vehicle component based on the detected response to the issued control signal, the determined behavior being a dead time, the dead time being a length of time from when the control signal was issued to the vehicle component until a time when the vehicle component became effective in response to the issued control signal; classifying the determined behavior of the vehicle component; and adapting an actuation of the vehicle component by the control unit based on a result of the classifying.

15 . The method of claim 14 , wherein the vehicle component is the steering system, the control signal is the steering intervention signal, and the detecting of the response includes detecting a rotation of the vehicle caused by a steering intervention or a tilt of the vehicle caused by the steering intervention.

Assignees

• Knorr Bremse Systeme Fuer Nutzfahrzeuge Gmbh

Inventors

• Flumm Simon
• Graf Peter
• Albayrak Kaan

Classifications

• B60W2520/00

  Input parameters relating to overall vehicle dynamics · CPC title

• B60W10/20

  including control of steering systems · CPC title

• B60W10/18

  including control of braking systems · CPC title

• B60W10/04

  including control of propulsion units · CPC title

• B60T2250/00

  Monitoring, detecting, estimating vehicle conditions · CPC title