Method for operating an autonomous driving safety or driver assistance system of a motor vehicle

Patent metadata

Field	Value
Publication number	US-10023187-B2
Application number	US-201515127443-A
Country	US
Kind code	B2
Filing date	Mar 10, 2015
Priority date	Mar 21, 2014
Publication date	Jul 17, 2018
Grant date	Jul 17, 2018

Abstract

A method includes continuously recording, by the autonomous driving safety or driver assistance system, at least one of vehicle-related data and vehicle surroundings-related data, continuously repeatedly deciding, based on the recorded data, whether a driving safety or driver assistance system process is to be autonomously initiated or carried out, and carrying out a checking process, during which sensor data and parameter settings that are necessary for the operation of the driving safety or driver assistance system are checked for the plausibility thereof. The checking process is carried out immediately following a start of travel of the motor vehicle. In a period of time between the start of travel of the motor vehicle and a start of operation of the driving safety or driver assistance system, an auxiliary process for an immediate and safe auxiliary mode of the driving safety or driver assistance system is used during a checking period.

First claim

The invention claimed is:

1. A method for operating an autonomous driving safety system or driver assistance system of a motor vehicle, the method comprising:
continuously recording data using the autonomous driving safety or driver assistance system, wherein the data include at least one of vehicle-related data and vehicle surroundings-related data,
continuously repeatedly deciding, based on the recorded data, whether a driving safety or driver assistance system process is to be autonomously initiated or carried out, and
carrying out a checking process, during which sensor data and parameter settings that are necessary for the operation of the driving safety or driver assistance system are checked for the plausibility thereof,
wherein the checking process is carried out immediately following a start of travel of the motor vehicle,
wherein in a period of time between the start of travel of the motor vehicle and a start of operation of the driving safety or driver assistance system, an auxiliary process for an immediate and safe auxiliary mode of the driving safety or driver assistance system having reduced functional scope is used,
wherein the driving safety or driver assistance system acts at least as an emergency brake system, and
wherein during the auxiliary mode of the driving safety or driver assistance system, a limit value for a maximum effective brake force of a brake system of the motor vehicle that is activated by the emergency brake system is reduced relative to a normal mode of the driving safety or driver assistance system.

2. The method as claimed in claim 1 , wherein the driving safety or driver assistance system further acts as at least one of an autonomous distance and speed regulating system and an autonomous steering intervention system.

3. The method as claimed in claim 1 , wherein the checking period in which the auxiliary checking process is carried out, during which the sensor data and parameter settings that are necessary for the operation of the driving safety or driver assistance system are checked for the plausibility thereof and in which the auxiliary process for the auxiliary mode of the driving safety or driver assistance system is used, is the period of time from the start of travel until the successful completion of all checking activities and plausibility check activities.

4. The method as claimed in claim 1 , wherein the checking period in which the checking process is carried out, during which the sensor data and parameter settings that are necessary for the operation of the driving safety or driver assistance system are checked for the plausibility thereof and in which the auxiliary process for the auxiliary mode of the driving safety or driver assistance system is used, is a period of time in which the motor vehicle covers a driving distance of a certain minimum length.

5. The method as claimed in claim 4 , wherein the checking period is a period of time in which the motor vehicle covers a driving distance of between 2 km and 15 km.

6. A method for operating an autonomous driving safety system or driver assistance system of a motor vehicle, the method comprising:
continuously recording data using the autonomous driving safety or driver assistance system, wherein the data include at least one of vehicle-related data and vehicle surroundings-related data,
continuously repeatedly deciding, based on the recorded data, whether a driving safety or driver assistance system process is to be autonomously initiated or carried out, and
carrying out a checking process, during which sensor data and parameter settings that are necessary for the operation of the driving safety or driver assistance system are checked for the plausibility thereof,
wherein the checking process is carried out immediately following a start of travel of the motor vehicle,
wherein in a period of time between the start of travel of the motor vehicle and a start of operation of the driving safety or driver assistance system, an auxiliary process for an immediate and safe auxiliary mode of the driving safety or driver assistance system having reduced functional scope is used,
wherein the driving safety or driver assistance system acts at least as an emergency brake system, and
wherein at least one of drive-related data of the motor vehicle, route-related data, traffic-related data, environment-related data, and data for assessing the driving activities of the driver of the motor vehicle are continuously recorded,
wherein at least one of a position, a speed, and an acceleration of at least one motor vehicle ahead and/or the position of at least one stationary obstacle are recorded continuously,
wherein based on the recorded data a decision is made continuously and repeatedly regarding whether an emergency braking process preventing a collision of the motor vehicle with at least one vehicle ahead and/or a stationary obstacle ahead, or at least reducing the consequences of such a collision, is to be autonomously initiated or carried out,
wherein the auxiliary process for the auxiliary mode of the driving safety or driver assistance system uses previously determined assumptions and/or immediately available data about the operating state of the motor vehicle, about the geometry of the current route, about a current range of driving speeds of the motor vehicle, about the current traffic situation, and about the current driving activities of the driver,
wherein during the course of the auxiliary process, the sensor data and parameter settings that are necessary for the operation of the auxiliary process are checked for the plausibility thereof, and
wherein during the course of the auxiliary process a start scenario with the initial sensor data and initial parameter settings and with non-reduced functional scope is generated from plausible sensor data and parameter settings for the start of the operation of the driving safety or driver assistance system.

7. The method as claimed in claim 6 , wherein the previously determined data and parameters used during the operation of the auxiliary process are successively replaced and/or supplemented by determined data and parameters that have been checked for the plausibility thereof.

8. A method for operating an autonomous driving safety system or driver assistance system of a motor vehicle, the method comprising:
continuously recording data using the autonomous driving safety or driver assistance system, wherein the data include at least one of vehicle-related data and vehicle surroundings-related data,
continuously repeatedly deciding, based on the recorded data, whether a driving safety or driver assistance system process is to be autonomously initiated or carried out, and
carrying out a checking process, during which sensor data and parameter settings that are necessary for the operation of the driving safety or driver assistance system are checked for the plausibility thereof,
wherein the checking process is carried out immediately following a start of travel of the motor vehicle,
wherein in a period of time between the start of travel of the motor vehicle and a start of operation of the driving safety or driver assistance system, an auxiliary process for an immediate and safe auxiliary mode of the driving safety or driver assistance system having reduced functional scope is used,
wherein an at least approximately turn-free route is assumed as a first assumption for the auxiliary process for the auxiliary mode of the driving safety or driver assistance system.

9. The method as claimed in claim 8 , wherein a turn radius of |rcurve|>1000 m is assumed for the route for the auxiliary process.

10. The method as claimed in claim 8 , wherein a limited range of driving spee

Assignees

• Wabco Gmbh

Inventors

• Wulf Oliver

Classifications

• B60T2210/32

  Vehicle surroundings · CPC title

• B60T2270/402

  Back-up · CPC title

• B60T8/885

  using electrical circuitry · CPC title

• B60T2270/413

  Plausibility monitoring, cross check, redundancy · CPC title

• B60T2201/024

  Collision mitigation systems · CPC title