Human-machine interface (HMI) auto-steer based upon-likelihood to exceed eye glance guidelines
The described method and system provide for HMI steering for a telematics-equipped vehicle based on likelihood to exceed eye glance guidelines. By determining whether a task is likely to cause the user to exceed eye glance guidelines, alternative HMI processes may be presented to a user to reduce ASGT and EORT and increase compliance with eye glance guidelines. By allowing a user to navigate through long lists of items through vocal input, T9 text input, or heuristic processing rather than through conventional presentation of the full list, a user is much more likely to comply with the eye glance guidelines. This invention is particularly useful in contexts where users may be searching for one item out of a plurality of potential items, for example, within the context of hands-free calling contacts, playing back audio files, or finding points of interest during GPS navigation.
1. A method for presenting a display screen for a graphical human machine interface (HMI) for a moving vehicle based on likelihood to exceed eye glance guidelines, wherein the graphical HMI is configured, for a task requiring a user to view the graphical HMI, with a conventional HMI screen and an alternative HMI screen, the method comprising:
receiving a user input corresponding to the task requiring the user to view the graphical HMI;
determining a user action required for the task,
determining a time value associated with performing the user action required for the task, the time value being taken from the group consisting of:
an associated average standard glance time (ASGT) value, and
an associated eyes off the road time (EORT) value;
determining whether the task would violate an eye glance guideline for the moving vehicle by comparing an eye glance guideline time value to the time value associated with performing the user action; and
conditionally presenting only one of the conventional and the alternative HMI screens by presenting the conventional HMI screen only if the task would not violate the eye glance guideline and otherwise presenting the alternative HMI screen.
2. The method of claim 1 , wherein the task involves multiple user actions,
and wherein, for each of the multiple user actions involved in the task, a time value associated with the user action is determined, the time value being taken from the group consisting of: an associated ASGT and an associated EORT.
3. The method of claim 2 , wherein determining whether the task violates an eye glance guideline is based on at least one of the group consisting of: the ASGTs associated with each of the multiple user actions and the EORTs associated with each of the multiple user actions.
4. The method of claim 1 , wherein determining whether the task is likely to cause the user to exceed eye glance guidelines is based on an amount of information that is to be presented to the user.
5. The method of claim 1 , wherein the alternative HMI screen presents a request for vocal input from the user.
6. The method of claim 5 , the method further comprising:
receiving a vocal input from the user; and
presenting the user with information related to the task based on processing of the vocal input.
7. The method of claim 1 , wherein the alternative HMI screen presents a request for input from the user utilizing T9 (text on nine keys) text input.
8. The method of claim 1 , wherein the alternative HMI screen presents options to the user based on heuristic processing.
9. The method of claim 1 , wherein the associated ASGT value of the user action is determined from experimental data from user trials, and
wherein the associated EORT value of the user action is determined from experimental data from user trials.
10. A tangible, non-transient computer-readable medium, part of a telematics unit on a telematics-equipped vehicle, having thereon computer executable instructions for presenting a display screen for a graphical human machine interface (HMI) based on likelihood to exceed eye glance guidelines, wherein the HMI is configured, for a task requiring a user to view the graphical HMI, with a conventional HMI screen and an alternative HMI screen, the computer executable instructions comprising instructions for:
receiving a user input corresponding to the task requiring the user to view the graphical HMI;
determining a user action involved in the task,
determining a time value associated with performing the user action required for the task, the time value being taken from the group consisting of:
an associated average standard glance time (ASGT) value, and
an associated eyes off the road time (EORT) value;
determining whether the task would violate an eye glance guideline for the moving vehicle by comparing an eye glance guideline time value to the time value associated with performing the user action; and
conditionally presenting only one of the conventional and the alternative HMI screens by presenting the conventional HMI screen only if the task would not violate the eye glance guideline and otherwise presenting the alternative HMI screen.
11. The computer-readable medium of claim 10 , wherein the task involves multiple user actions,
and wherein, for each of the multiple user actions involved in the task, a time value associated with the user action is determined, the time value being taken from the group consisting of: an associated ASGT and an associated EORT.
12. The computer-readable medium of claim 10 , wherein the alternative HMI screen presents a request for vocal input from the user.
13. The computer-readable medium of claim 12 , the computer executable instructions further comprising:
receiving a vocal input from the user; and
presenting the user with information related to the task based on processing of the vocal input.
14. The computer-readable medium of claim 10 , the computer executable instructions further comprising instructions for at least one of the group consisting of:
presenting a request for input from the user utilizing T9 (text on nine keys) text input; and
presenting options to the user based on heuristic processing.
15. The computer-readable medium of claim 11 , wherein determining whether the task would violate an eye glance guideline is based on at least one of the group consisting of: the ASGTs associated with each of the multiple user actions and the EORTs associated with each of the multiple user actions.
16. The computer-readable medium of claim 10 , wherein the associated ASGT value of the user action is determined from experimental data from user trials, and
wherein the associated EORT value of the user action is determined from experimental data from user trials.