Vehicle air conditioning control device
A vehicle air conditioning control device calculates, through a thermal load calculating unit, a vehicle interior thermal load Q on the basis of, for example, a vehicle interior temperature Tin, a vehicle interior humidity Hin, a vehicle exterior temperature Tout, a passenger load factor θ, and a vehicle-interior-temperature set value Tset. Through an air conditioning output calculating unit, the vehicle air conditioning control device calculates an output command value for an air conditioner on the basis of a vehicle-interior-temperature upper-limit value Tmax, a vehicle-interior-temperature lower-limit value Tmin, the thermal load Q, power-running/regenerative electric power P, and then, corrects the calculated output command value for the air conditioner on the basis of power-running/regenerative electric power Pf at or after a prediction time point and of a passenger load factor θf at or after the prediction time point.
1. A vehicle air conditioning control device to be included in a vehicle to control an air conditioner in said vehicle, said device comprising:
a target environment condition setter that inputs target environment conditions including a vehicle-interior-temperature set value, a vehicle-interior-temperature upper-limit value, and a vehicle-interior-temperature lower-limit value that are predetermined;
a vehicle interior environment detector that detects a vehicle interior environment including a vehicle interior temperature and a vehicle interior humidity;
a vehicle exterior environment detector that detects a vehicle exterior environment including a vehicle exterior temperature being a temperature of the outside of said vehicle;
a vehicle condition detector that detects vehicle conditions including a position, a passenger load factor, and power-running/regenerative electric power of said vehicle;
a vehicle condition predicting unit that predicts an acceleration at or after a prediction time point, a velocity at or after the prediction time point, a slope at or after the prediction time point, and the passenger load factor at or after the prediction time point of said vehicle on the basis of a travel plan and passenger-load-factor information indicating a past passenger load factor of said vehicle;
a thermal load calculating unit that calculates a thermal load in said vehicle on the basis of said vehicle interior temperature and said vehicle interior humidity that are detected by said vehicle interior environment detector, said vehicle exterior temperature that is detected by said vehicle exterior environment detector, said passenger load factor that is detected by said vehicle condition detector, and said vehicle-interior-temperature set value that is input by said target environment condition setter;
a power-running/regenerative electric power predicting unit that predicts the power-running/regenerative electric power at or after said prediction time point on the basis of the acceleration at or after said prediction time point, the velocity at or after said prediction time point, the slope at or after said prediction time point, and the passenger load factor at or after said prediction time point of said vehicle that are predicted by said vehicle condition predicting unit;
an air conditioning output calculating unit that calculates an output command value for said air conditioner on the basis of said vehicle-interior-temperature upper-limit value and said vehicle-interior-temperature lower-limit value that are input by said target environment condition setter, said thermal load that is calculated by said thermal load calculating unit, said power-running/regenerative electric power that is detected by said vehicle condition detector, the power-running/regenerative electric power at or after said prediction time point that is predicted by said power-running/regenerative electric power predicting unit, and the passenger load factor at or after said prediction time point that is predicted by said vehicle condition predicting unit; and
an air conditioning controller that controls an output of said air conditioner on the basis of the output command value for said air conditioner that is calculated by said air conditioning output calculating unit,
wherein said air conditioning output calculating unit corrects the output command value for said air conditioner on the basis of said power-running/regenerative electric power that is detected by said vehicle condition detector, the power-running/regenerative electric power at or after said prediction time point that is predicted by said power-running/regenerative electric power predicting unit, and the passenger load factor at or after said prediction time point that is predicted by said vehicle condition predicting unit.
2. The vehicle air conditioning control device according to claim 1 , comprising a feeding voltage detector that detects a feeding voltage,
wherein said air conditioning output calculating unit corrects the output command value for said air conditioner on the basis of said power-running/regenerative electric power that is detected by said vehicle condition detector, the power-running/regenerative electric power at or after said prediction time point that is predicted by said power-running/regenerative electric power predicting unit, the passenger load factor at or after said prediction time point that is predicted by said vehicle condition predicting unit, and said feeding voltage that is detected by said feeding voltage detector.
3. The vehicle air conditioning control device according to claim 1 , further comprising an air conditioner model that models input and output characteristics of said air conditioner, wherein
said vehicle interior environment detector has a function as a vehicle interior environment predicting unit that predicts said vehicle interior environment including said vehicle interior temperature and said vehicle interior humidity on the basis of said thermal load calculated by said thermal load calculating unit and an output of said air conditioner model,
said vehicle exterior environment detector has a function as a vehicle exterior environment predicting unit that predicts said vehicle exterior environment including said vehicle exterior temperature,
said vehicle condition detector has a function as a vehicle condition predicting unit that predicts said vehicle conditions including the acceleration at or after said prediction time point, the velocity at or after said prediction time point, the slope at or after said prediction time point, the passenger load factor at or after said prediction time point, and the power-running/regenerative electric power at or after said prediction time point on the basis of the travel plan and past passenger-load-factor information of said vehicle,
said thermal load calculating unit has a function as a thermal load predicting unit that predicts said thermal load at or after the prediction time point and an operation mode of said air conditioner on the basis of said vehicle interior temperature and said vehicle interior humidity that are detected by said vehicle interior environment detector, said vehicle exterior temperature that is detected by said vehicle exterior environment detector, said passenger load factor that is detected by said vehicle condition detector, and said vehicle-interior-temperature set value that is input by said target environment condition setter,
said power-running/regenerative electric power predicting unit has a function as a power-running/regenerative electric power predicting unit that predicts the power-running/regenerative electric power at or after said prediction time point on the basis of the acceleration at or after said prediction time point, the velocity at or after said prediction time point, the slope at or after said prediction time point, and the passenger load factor at or after said prediction time point that are predicted by said vehicle condition predicting unit,
said air conditioning output calculating unit has a function as an air conditioning output planning unit that plans the output command value for said air conditioner on the basis of said vehicle-interior-temperature upper-limit value and said vehicle-interior-temperature lower-limit value that are input by said target environment condition setter, said thermal load at or after said prediction time point that is predicted by said thermal load calculating unit, said power-running/regenerative electric power that is detected by said vehicle condition detector, the power-running/regenerative electric power at or after said prediction time point that is predicted by said power-running/regenerative electric power predicting unit, and the passenger load factor at or after said prediction time point that is predicted by said vehicle condition predicting unit,
said air conditioning controller has a function of controlling the output of said air conditioner model on the basis of the output command value for said air conditioner that is planned by said air conditioning output planning unit, and
said air conditioning output planning unit corrects the output command value for said air conditioner on the basis of said power-running/regenerative electric power that is detected by said vehicle condition detector, the power-running/regenerative electric power at or after said prediction time point that is predicted by said power-running/regenerative electric power predicting unit, and the passenger load factor at or after said prediction time point that is predicted by said vehicle condition predicting unit.
4. The vehicle air conditioning control device according to claim 3 , comprising a feeding voltage predicting unit that predicts a feeding voltage on the basis of said travel plan,
wherein said air conditioning output calculating unit corrects the output command value for said air conditioner on the basis of said power-running/regenerative electric power that is detected by said vehicle condition detector, the power-running/regenerative electric power at or after said prediction time point that is predicted by said power-running/regenerative electric power predicting unit, the passenger load factor at or after said prediction time point that is predicted by said vehicle condition predicting unit, and said feeding voltage that is predicted by said feeding voltage predicting unit.
5. The vehicle air conditioning control device according to claim 1 , wherein
said vehicle includes a communication device capable of communicating with a host system capable of communicating with a plurality of vehicles,
information related to the output command value for said air conditioner that is calculated by said air conditioning output calculating unit is transmitted to said host system along with power consumption of each of said vehicles,
said host system corrects the output command value for said air conditioner of each of said vehicles,
said host system transmits a correction value of the output command value for said air conditioner to each of said vehicles, and
said air conditioning output calculating unit corrects the output command value for said air-conditioner on the basis of said correction value received from said host system.
6. The vehicle air conditioning control device according to claim 1 , wherein said vehicle includes a storage battery.
7. The vehicle air conditioning control device according to claim 1 , wherein said vehicle includes a heat storage device.
8. The vehicle air conditioning control device according to claim 1 , wherein said air conditioning output calculating unit corrects a predicted value of said thermal load on the basis of a predicted value of the thermal load of another vehicle running ahead of a following vehicle.
9. The vehicle air conditioning control device according to claim 1 , wherein said vehicle includes a compressor that generates compressed air for an air brake.
10. The vehicle air conditioning control device according to claim 1 , wherein said air conditioning output calculating unit corrects the output command value for said air conditioner on the basis of the number of surrounding trains and of a degree of congestion of the trains.
11. The vehicle air conditioning control device according to claim 1 , comprising a door opening-and-closing unit that changes the number of doors to be opened and closed depending on the number of users for each time period or on the number of users for each station.