Mobile device connectivity based on vehicle systems with variable flight time and dead reckoning
By using a combination of variable flight time and dead reckoning in the vehicle system, along with multi-band and inertial sensors, the problem of rapid battery consumption in mobile device location tracking was solved, achieving accurate and efficient location tracking and improving the user experience.
CN110082807BActive Publication Date: 2026-05-26FORD GLOBAL TECH LLC
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- FORD GLOBAL TECH LLC
- Filing Date
- 2019-01-25
- Publication Date
- 2026-05-26
AI Technical Summary
Technical Problem
Existing vehicle systems suffer from rapid battery drain when tracking mobile device locations, especially when the key fob battery is low, impacting user experience.
Method used
By employing a method based on variable flight time and dead reckoning, and combining multiple frequency bands with inertial sensor measurements, the position of mobile devices can be accurately tracked, reducing power consumption.
Benefits of technology
It improves the accuracy and efficiency of mobile device location tracking, reduces battery power requirements, and enhances the user experience.
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Figure CN110082807B_ABST
Abstract
This disclosure provides "Mobile Device Connectivity for Vehicle Systems Based on Variable Time of Flight and Dead reckoning". A method and apparatus for mobile device connectivity for vehicle systems based on variable time of flight and dead reckoning are disclosed. An example vehicle includes a communication module that communicates with a mobile device using multiple frequency bands and a vehicle body control module. The vehicle body control module estimates the position of the mobile device relative to the vehicle at time intervals based on time-of-flight measurements using one of the multiple frequency bands selected based on a previous position estimation. Between the time intervals, the vehicle body control module uses dead reckoning to track the position of the mobile device. Furthermore, the vehicle body control system controls the vehicle's subsystems based on the position of the mobile device.
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