Preemptive EV Battery Pack Temperature Control System

摘要

A system for thermally pre-conditioning a vehicle's battery pack prior to vehicle departure is provided. The system, after determining that the vehicle is off and/or the driver has left the car, monitors a variety of conditions corresponding to both the vehicle and the driver in order to determine the probability of the driver requiring near-term use of the car. Typical monitored conditions may include driver and vehicle location, driver proximity, time of day, day of week, driver's upcoming appointments, and a historical data base that tracks driver behavior. Once the probability that the car will be needed within a preset time period exceeds a preset level, the system determines whether the battery pack should be heated or cooled based on the current battery pack temperature, and then activates an appropriate thermal management system.

主权项

1. A thermal management system coupled to a battery pack mounted within a vehicle, wherein the thermal management system is controlled by an on-board control system, said on-board control system comprising:
a clock, wherein said clock provides current time and current date information to said on-board control system; a driver proximity detection system coupled to said on-board control system, wherein said driver proximity detection system is configured to determine a separation distance between the vehicle and a driver; a global positioning system (GPS) coupled to said on-board control system, wherein said GPS provides a current vehicle location to said on-board control system; a memory coupled to said on-board control system, wherein said memory contains a historical data base; and a vehicle state monitor, wherein said vehicle state monitor provides a first control signal to said on-board control system when said vehicle is on and provides a second control signal to said on-board control system when said separation distance is greater than a preset distance, wherein after receiving said second control signal said on-board control system is configured to (i) determine a probability of the vehicle departing from said current location within a preset number of minutes relative to said current time, said probability based on at least two of said current time, said current date, said separation distance, said current vehicle location and said historical data base, (ii) compare said probability to a preset probability, and (iii) activate said thermal management system if said probability exceeds said preset probability.