Übersetzung für "Fail operational" in Deutsch

For Category IIIB operations with fail-operational flight control systems using a decision height, a pilot may not continue an approach below the Decision Height, determined in accordance with sub-paragraph (e)(2) above, unless a visual reference containing at least one centreline light is attained and can be maintained.

For Category IIIB operations with fail-operational flight control systems using a decision height, a pilot may not continue an approach below the decision height, determined in accordance with subparagraph (e)(2), unless a visual reference containing at least one centreline light is attained and can be maintained.

For Category IIIB operations with fail-operational flight control systems using a decision height, a pilot may not continue an approach below the Decision Height, determined in accordance with subparagraph (e)(2) above, unless a visual reference containing at least one centreline light is attained and can be maintained.

The communications system must be fail-operational, that is, it must continue to perform its task regardless of any possible disturbance or possible failure.

Therewith, however, it is not possible to achieve the required degree of security "fail-operational, fail-operational, fail-safe".

Particularly it is the object of the invention, to obtain, by using four two-axis angular rate sensors a failure behaviour of "fail-operational, fail-operational, fail-safe", meaning that the system will remain operative even after the failure of two angular rate sensors, that the system will become inoperative only after a third angular rate sensor fails, and that the system will indicate its inoperative status to the pilot.

When the reference device is doubled, such that, in case of failure of a reference device, it automatically can be changed-over to the other one and the failure can be signalized, it result --with four two-axis rate gyros--in a failure behavior "fail-operational, fail-safe".

The described arrangement manages with a minimum of accelerometers to obtain a failure behavior "fail-operational, fail-operational, fail-safe".

This means that the “fail operational” control has to be configured as if the driver was still fully actively involved.

However, the increasing degree of piloted driving also increases the demands on the safety-relevant vehicle systems which then, instead of being configured “fail safe”, have to be configured “fail operational” because they have to be capable to autonomously guide the vehicle at least for a certain transitional period, i.e., until the driver is actively involved again in the driving operation, even when a malfunction is present.

In order to meet the requirement of a fail-safe operational characteristic in the case of simple errors, the brake pedal module must have at least three redundant processors as well as three redundant, diversified if necessary, sensors for the service brake.

This makes it possible to use embodiments of the invention in a singular Ethernet ring structure, in which the necessary redundancy is achieved by using both directions in the ring, for fail-operational communication.

Currently known braking system architectures however, do not allow the realization of such a “fail-operational” behavior since they are still geared to the driver as a fallback.

With increasing scope of piloted driving, the demands on safety-relevant motor vehicle systems however also increase, which then need no longer be configured “fail-safe”, but “fail-operational”, because they must be able to guide the motor vehicle autonomously, even in the case of a fault, for at least a certain bridging period, that is until the driver himself is actively involved in the driving operation again.

If the driver is not available to take control of the vehicle, the system must switch over from a "fail-safe" to a "fail-operational" mode by maintaining functionality with a high degree of reliability in every case.