G - Physics – 05 – D
Patent
G - Physics
05
D
G05D 23/19 (2006.01) B60H 1/00 (2006.01) B61D 27/00 (2006.01) G08C 17/00 (2006.01)
Patent
CA 2051887
ABSTRACT OF THE DISCLOSURE A heating, ventilation and air conditioning (HVAC) system and method for a plurality of mass transit vehicles where each vehicle has at least one independently actuated HVAC unit comprises a command center remote from the plura- lity of mass transit vehicles, for individually controlling the HVAC unit of each of the plurality of mass transit vehicles. The command center control unit includes a memory unit for storing temperature values desired for each vehicle, and corresponding times of a day and days on which the stored temperature valves are desired within each respective vehicle. A sensing device is disposed within each of a plurality of mass transit vehicles. A comparator device, disposed in communication with the plurality of sensing devices and the command center, compares sensed existing temperature levels with stored temperature values for respective ones of the mass transit vehicles and generates control signals being a function of a difference between the sensed temperature and the stored temperature value of a respective vehicle. An operating device, responsive to the generated control signals operates the respective HVAC units of the respective vehicles to reduce the difference between the sensed existing temperature and the stored desired temperature of each respective vehicle.
Hvozda Carl Kenneth
Karg Kenneth Andrew
Abb Daimler-Benz Transportation (north America) Inc.
Smart & Biggar
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