Search

CN-121996481-A - Method and device for controlling a display of a vehicle

CN121996481ACN 121996481 ACN121996481 ACN 121996481ACN-121996481-A

Abstract

The invention relates to a method performed by a display controller of a vehicle, the method comprising detecting a fault associated with a display occurring inside the display controller, and triggering an operation corresponding to the type of fault for maintaining a display connected to the display controller in a display state based on the type of fault detected. The invention also relates to an apparatus for controlling a display of a vehicle, the apparatus comprising one or more monitors configured to detect a fault associated with a display occurring inside the apparatus, and to trigger an operation corresponding to the type of fault for maintaining the display connected to the apparatus in a display state based on the type of fault detected.

Inventors

  • LUO YUXING

Assignees

  • 博世汽车部件(苏州)有限公司

Dates

Publication Date
20260508
Application Date
20241108

Claims (14)

  1. 1. A method performed by a display controller of a vehicle, the method comprising: detecting a display-related malfunction occurring inside the display controller, and Based on the detected type of the failure, an operation corresponding to the type of the failure for maintaining a display connected to the display controller in a display state is triggered.
  2. 2. The method of claim 1, wherein detecting the failure associated with a display occurring within the display controller comprises detecting the failure by a monitor within a first control unit of the display controller, the failure comprising a transient hardware failure within a second control unit of the display controller or a rendering failure of a first rendering module within the second control unit, and wherein the operations comprise rendering alert data by a second rendering module within the second control unit, wherein a first rendering path associated with the first rendering module is at least partially decoupled from a second rendering path associated with the second rendering module.
  3. 3. The method of claim 1, wherein detecting the failure associated with a display occurring within the display controller comprises detecting the failure by a monitor within a second control unit of the display controller, the failure comprising a delay or loss of at least one of the modules registered to the monitor within the second control unit of the display controller, and wherein the operation comprises resetting the at least one module within a Failure Detection Time Interval (FDTI) to resume normal operation of the module within the FDTI when the delay or loss of the at least one module is detected.
  4. 4. A method according to claim 3, wherein the at least one module comprises at least one of a rendering module or a verification module internal to the second control unit.
  5. 5. A method according to claim 3, wherein the modules comprise a first rendering module and one or more further rendering modules, the output of the first rendering module corresponding to a first layer of the display and the output of the one or more further rendering modules corresponding to one or more further layers of the display, and wherein the failure comprises a delay or loss of the first rendering module.
  6. 6. An apparatus for controlling a display of a vehicle, comprising: one or more monitors configured to: detecting a display-related malfunction occurring inside the device, and Based on the detected type of the failure, an operation corresponding to the type of the failure for maintaining the display connected to the device in a display state is triggered.
  7. 7. The apparatus of claim 6, wherein detecting the failure associated with the display occurring within the apparatus comprises detecting the failure by a monitor within a first control unit in the apparatus, the failure comprising a transient hardware failure within a second control unit in the apparatus or a rendering failure of a first rendering module within the second control unit, and wherein the operations comprise rendering alert data by a second rendering module within the second control unit, wherein a first rendering path associated with the first rendering module is at least partially decoupled from a second rendering path associated with the second rendering module.
  8. 8. The apparatus of claim 6, wherein detecting the failure associated with the display occurring within the apparatus comprises detecting the failure by a monitor within a second control unit in the apparatus, the failure comprising a delay or loss of at least one of the modules registered to the monitor within the second control unit in the apparatus, and wherein the operations comprise resetting the at least one module within a Failure Detection Time Interval (FDTI) to resume normal operation of the module within the FDTI when the delay or loss of the at least one module is detected.
  9. 9. The apparatus of claim 8, wherein the at least one module comprises a rendering module or a verification module internal to the second control unit.
  10. 10. The apparatus of claim 8, wherein the module comprises a first rendering module and one or more additional rendering modules, an output of the first rendering module corresponding to a first layer of the display and an output of the one or more additional rendering modules corresponding to one or more additional layers of the display, and wherein the failure comprises a delay or loss of the first rendering module.
  11. 11. A method performed by a display controller of a vehicle, the method comprising: applying a partitioning mechanism to at least one of a rendering module or a verification module located inside a control unit in the display controller, wherein the partitioning mechanism comprises at least one of: Allocating dedicated Central Processing Unit (CPU) bandwidth to at least one of the rendering module and the verification module, and An application Memory Management Unit (MMU) allocates a memory resource to at least one of the rendering module and the verification module, wherein the memory resource is configured to store security-related information.
  12. 12. An apparatus for controlling a display of a vehicle, comprising: a control unit configured to: Applying a partitioning mechanism to at least one of a rendering module or a verification module located inside a control unit in the device, wherein the partitioning mechanism comprises at least one of: Allocating dedicated Central Processing Unit (CPU) bandwidth to at least one of the rendering module and the verification module, and An application Memory Management Unit (MMU) allocates a dedicated memory resource to at least one of the rendering module and the verification module, wherein the dedicated memory resource is configured to store security-related information.
  13. 13. A computer-readable medium storing computer-executable instructions that, when executed, cause one or more processors to perform the method of any of claims 1-5 and 11.
  14. 14. A computer program product comprising computer-executable instructions that, when executed, cause one or more processors to perform the method of any of claims 1-5 and 11.

Description

Method and device for controlling a display of a vehicle Technical Field The present invention relates generally to vehicles and, more particularly, to an apparatus, method, and computer readable medium for controlling a display of a vehicle. Background Vehicles broadly include vehicles, airplanes, ships, and the like. In current daily life, the vehicles used by people when going out are mainly vehicles. The safety of a vehicle is an important indicator for measuring the performance of the vehicle. The vehicle safety (Automotive safety) refers to the performance of avoiding accidents and guaranteeing the safety of pedestrians and passengers during running of the vehicle. The Human-machine interface (Human-MACHINE INTERFACE, HMI) between the vehicle and the driver is an important aspect of ensuring the safety of the vehicle. With the development of automatic driving, higher demands are being made on the safety of vehicles. For example, a driver may be alerted to a safety issue with the vehicle at the current time by displaying safety-related HMI content (e.g., a warning or status warning light) on a dashboard display of the vehicle. However, there may be different safety requirements for the individual components of the vehicle, and therefore, there is a need for further improvements in the control method and control device for the display of the vehicle. Disclosure of Invention The display mechanism related to the safety of the vehicle may be affected by a malfunction of the control unit outputting the HMI content. In some cases, when the control unit outputting the HMI content fails, the display system of the vehicle will enter a safe state, for example, the dashboard display or other display will enter a black screen state to alert the driver to the failure of the vehicle. However, frequent entry of the display into the black screen state frequently changes the driving environment, distracts the driver, and may potentially cause other safety issues. The present invention aims to provide an improved technical solution capable of avoiding frequent entry of a display (e.g., dashboard display) into a black screen state by detecting a malfunction associated with a display and triggering an operation corresponding to the type of malfunction based on the type of malfunction detected, thereby improving the driving experience of a user and avoiding unavailability of the display caused by the black screen state, improving the usability of the display and further improving the safety of a vehicle. Certain aspects of the present disclosure provide a method performed by a display controller of a vehicle, the method comprising detecting a fault associated with a display occurring within the display controller, and triggering an operation corresponding to the type of fault for maintaining a display connected to the display controller in a display state based on the type of fault detected. Certain aspects of the present disclosure provide an apparatus for controlling a display of a vehicle, the apparatus comprising one or more monitors configured to detect a fault associated with a display occurring within the apparatus, and trigger an operation corresponding to a type of the fault to maintain the display connected to the apparatus in a display state based on the type of the detected fault. Certain aspects of the present disclosure provide a computer-readable medium storing computer-executable instructions that, when executed, cause one or more processors to detect a fault associated with a display occurring within a display controller and trigger an operation corresponding to a type of fault to maintain a display connected to the display controller in a display state based on the type of fault detected. Certain aspects of the present disclosure provide a method performed by a display controller of a vehicle, the method comprising applying a partitioning mechanism (partition mechanism) to at least one of a rendering module or a verification module located within a control unit in the display controller, wherein the partitioning mechanism comprises at least one of allocating dedicated Central Processing Unit (CPU) bandwidth to at least one of the rendering module and the verification module, and allocating storage resources to at least one of the rendering module and the verification module using a memory management unit (memory management unit, MMU), wherein the storage resources are configured to store security-related information. Certain aspects of the present disclosure provide an apparatus for controlling a display of a vehicle, the apparatus comprising a control unit configured to apply a partitioning mechanism to at least one of a rendering module or a verification module located inside the control unit in the apparatus, wherein the partitioning mechanism comprises at least one of allocating dedicated CPU bandwidth to at least one of the rendering module and the verification module, and allocating storage resource