Display device
Device and method for displaying a current driving mode of a vehicle, at least one of several driving modes of the vehicle is an autonomous driving mode. The device includes a display unit having a light source and an imaging unit interacting with the light source. A first controller controls the light source. The first controller is configured such that it meets a first technical qualification with regards to a reliability or safety criterion. The first controller only activates the light source in the event of the current presence of the autonomous driving mode. A second controller controls the imaging unit, the second controller is configured such that that it meets a second technical qualification with regards to the reliability or safety criterion. The first technical qualification corresponds to a higher degree of reliability or safety with regards to the reliability or safety criterion than the second technical qualification.
1. A vehicle device, comprising:
a display having at least one light source and an imaging unit interacting with the light source,
an autonomous driving control device that controls the light source, wherein the autonomous driving control device is configured such that it meets a first technical qualification with regards to a reliability or safety criterion, and the autonomous driving control device only activates the light source responsive to a current driving mode being an autonomous driving mode; and
a telematics control device that controls the imaging unit, wherein the telematics control device is configured such that it meets a second technical qualification with regards to the reliability or safety criterion, and the first technical qualification corresponds to a higher degree of reliability or safety with regards to the reliability or safety criterion than the second technical qualification,
wherein the device displays a current driving mode of the vehicle, and at least one of several driving modes of the vehicle is the autonomous driving mode.
2. The device of claim 1 , wherein the first and the second technical qualification with regards to the reliability or safety criterion are at least one of:
an Automotive Safety Integrity Level (ASIL),
a Safety Integrity Level (SIL),
a Design Assurance Level (DAL),
a qualification according to an error rate per hour, or
a qualification according to an error probability.
3. The device of claim 2 , wherein the first technical qualification of the autonomous driving control device corresponds to:
an ASIL level ASIL-C or ASIL-D,
an SIL level SIL-3 or SIL-4,
a DAL level DAL-A or DAL-B, or
an error rate of <10 −8 or <10 −8 or <10 −9 per hour.
4. The device of claim 1 , wherein the display unit is one of:
a liquid crystal display having a liquid crystal matrix and a background illumination, wherein the imaging unit is the liquid crystal matrix that is controlled by the telematics control device, and the light source is the background illumination that is controlled by the autonomous driving control device, or
a digital light projector (DLP), having a digital micromirror device (DMD) chip and at least one illumination source, wherein the imaging unit is the DMD chip that is controlled by the telematics control device, and the light source is the at least one illumination source that is controlled by the autonomous driving control device.
5. The device of claim 4 , wherein the DLP has a number N>1 of differently colored illumination sources, and a number M of illumination sources is controlled by the autonomous driving control device, where M<N.
6. The device of claim 5 , wherein only one, several, or all of the M illumination sources is/are activated to display the autonomous driving mode, the illumination sources being controlled by the autonomous driving control device, while all the other N illumination sources are inactive to display the autonomous driving mode.
7. The device of claim 5 , wherein the liquid display has a background illumination that is divided into a number O of regions, where O≥2, 3 . . . , wherein the autonomous driving control device controls a number P of the regions, where P<O.
8. A vehicle, comprising:
a device, which comprises
a display having at least one light source and an imaging unit interacting with the light source,
an autonomous driving control device that controls the light source, wherein the autonomous driving control device is configured such that it meets a first technical qualification with regards to a reliability or safety criterion, and the autonomous driving control device only activates the light source responsive to a current driving mode being an autonomous driving mode; and
a telematics control device that controls the imaging unit, wherein the telematics control device is configured such that it meets a second technical qualification with regards to the reliability or safety criterion, and the first technical qualification corresponds to a higher degree of reliability or safety with regards to the reliability or safety criterion than the second technical qualification,
wherein the device displays a current driving mode of the vehicle, and at least one of several driving modes of the vehicle is the autonomous driving mode.
9. A method for displaying a current driving mode of a vehicle using a display unit having at least one light source and an imaging unit interacting with the light source, wherein at least one of several driving modes of the vehicle is an autonomous driving mode, the method comprising:
controlling the light source by an autonomous driving control device, wherein the autonomous driving control device is configured such that it meets a first technical qualification with regards to a reliability or safety criterion, and the autonomous driving control device only activates the light source in the event of the current presence of the autonomous driving mode; and
controlling the imaging unit by a telematics control device, wherein the telematics control device is configured such that it meets a second technical qualification with regards to the reliability or safety criterion, wherein the first technical qualification corresponds to a higher degree of reliability or safety with regards to the reliability or safety criterion than the second technical qualification.