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Method and apparatus for controlling a safety-relevant process, and vehicle

A safety, equipment technology, used in the field of vehicles

Pending Publication Date: 2019-12-27
VOLKSWAGEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The challenge in this architecture is that the identified fault must be discriminated against with quantifiable safety itself

Method used

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  • Method and apparatus for controlling a safety-relevant process, and vehicle
  • Method and apparatus for controlling a safety-relevant process, and vehicle
  • Method and apparatus for controlling a safety-relevant process, and vehicle

Examples

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Embodiment Construction

[0049] figure 1 A typical cockpit of vehicle 10 is shown. Sedan shown. However, any other vehicle is also conceivable as vehicle 10 . Examples of other vehicles are: buses, commercial vehicles, especially trucks, agricultural machines, construction machines, rail vehicles, etc. The invention can generally be used in land vehicles, rail vehicles, ships and aircraft.

[0050] A component in the vehicle 10 that is important to the invention is the steering system, from which a steering wheel 12 with a steering column portion can be seen in the cockpit. In addition, in figure 1 In , the display units of the infotainment system are highlighted with reference numbers. The display unit is a touch-sensitive screen 20 installed in the center console.

[0051] In this case, touch-sensitive screen 20 is used in particular to operate functions of vehicle 10 . For example, the radio, navigation system, playback of stored musical compositions and / or air conditioning, other electronic...

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PUM

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Abstract

The invention relates to a hardware architecture for controlling a safety-relevant process. At least two microcontrollers 250, 350 are utilized for controlling the process in at least two control branches, wherein the respective microcontrollers 250, 350 are designed to control the safety-relevant process. This is therefore a redundant system. In a method, the microcontrollers 250, 350 process thedata from at least one sensor 276, 376, which detects the actual characteristic of the respective control branch. Between the two microcontrollers 250, 350, the data of the respective sensor 276, 376are exchanged, and in a decision module 258, 358 provided for each microcontroller 250, 350, a check is made to determine whether the data from the sensors 276, 376 are consistent. In response to aninconsistency being detected, a majority decision is made and a model value used in forming the majority decision, is calculated in the microcontroller 250, 350 based on control commands so the control of the safety-relevant process by the microcontroller 250, 350 of the control branch, whose data were detected as erroneous in the majority decision, is disabled. Third sensors that would otherwisehave to be used for check can be saved by calculating model parameters.

Description

technical field [0001] The invention relates to a method and a device for controlling a safety-relevant process, as well as a vehicle. Background technique [0002] In today's vehicles, electromechanical steering systems ( figure 1 ). If a fault occurs in these electrical components of the steering system during operation, the power steering is switched off or reduced. The driver then has to use a greater expenditure of power to steer the vehicle. [0003] In the near future, autonomous driving systems are used in vehicles, which allow the driver not to be permanently busy with the driving task and to perform other activities (reading, sleeping, writing messages...) while the driving system is active. The driver is therefore no longer available for the steering system as a backup in the event of a failure. Therefore, a steering system used in conjunction with an automated driving system must also be able to guide the vehicle and adjust the movement on the rack after a fa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W50/029B60W50/04
CPCB60W50/045B60W50/029B62D5/0484B62D5/049B62D5/003B60R16/0232G07C5/085
Inventor T.萨克斯S.施密特-谢弗F.肖特勒
Owner VOLKSWAGEN AG
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