A kind of new city rail traffic vehicles air conditioning control method changed based on the outer temperature of car and handling capacity of passengers
Technical field
The present invention relates to a kind of rail traffic vehicles air conditioning control method and control system, belong to vehicle air conditioning technical field.Refer in particular to a kind of new city rail traffic vehicles air conditioning control method changed based on the outer temperature of car and handling capacity of passengers.
Background technology
In the car of urban rail transit vehicles, air-conditioning system target control temperature affects the most important factor of passenger's thermal comfort, and it directly affects human body convection current and the radiant heat exchange of passenger.At present because the setting of China to the control temperature of urban rail transit vehicles air-conditioning system does not have clear and definite standard, still is mostly the UIC553 standards using for reference Europe alliance, and the temperature-controlled process of this UIC553 standard only introduces the outer temperature of car to control car internal-external temperature difference.This temperature control mode, to control car internal-external temperature difference for core, does not consider the impact of handling capacity of passengers on passenger inside the vehicle's thermal comfort.Meanwhile, because Europe is different from China's national situation, this UIC553 standard being applicable to Europe can not meet the practice situation of the large handling capacity of passengers of China completely.On the other hand, from passenger train be commonly grow up interval different, urban rail transit vehicles is commonly the operation of short interval, train dwelling switch gate frequency is large, and the difference in change opposite sex of different interval handling capacity of passengers is larger, to make in compartment actual heating load also can frequent variations thereupon, the temperature that the temperature control mode being applicable to the passenger train of volume of the flow of passengers relative constancy also cannot be applicable to urban rail transit vehicles completely controls.This is also that current urban rail transit in China vehicle passenger cab thermally comfortable environment controls integral level and also cannot meet people's requirement completely, the main cause that passenger still remains high for cold complaint or the hot complaint situation of environment inside car.
Summary of the invention
The object of the invention is to overcome shortcoming of the prior art with not enough, a kind of new city rail traffic vehicles air conditioning control method changed based on the outer temperature of car and handling capacity of passengers is provided, this control method introduces the actual handling capacity of passengers of vehicle and the car external environment temperature signal variable calculating parameter as car internal object control temperature simultaneously, more comprehensive and accurately can calculate the car internal object control temperature met under this handling capacity of passengers thermal comfort demand.
Second object of the present invention is to provide a kind of new city rail traffic vehicles air-conditioner control system changed based on the outer temperature of car and handling capacity of passengers.
In order to realize first object, the present invention realizes according to following technical scheme:
Based on the new city rail traffic vehicles air conditioning control method that the outer temperature of car and handling capacity of passengers change, it comprises the following steps:
The conditional parameter computed information of S1, thermal resistance of wearing the clothes according to car outer air temperature, vehicle handling capacity of passengers and passenger carries out multiple linear regression, draws the binary vehicle interior temperature Controlling model T_in=k1*T_out-k2*n+k3 based on the outer temperature of car and handling capacity of passengers;
Handling capacity of passengers signal in S2, the outer real time temperature signal of collection car and car, imports the Temperature Control Model of above-mentioned S1 step, obtains car internal object control temperature;
The real time temperature in multiple region in S3, collection car, average, the car internal object control temperature that rear and S2 step obtains compares, and automatically adjusts the duty of vehicle air conditioning unit according to comparative result, and then the output refrigerating capacity of adjusting air conditioning group, realize the auto-control of vehicle interior temperature.
Further, in described S2 step, vehicle set has for the outer temperature sensor of car of the outer temperature of inspection vehicle and the vehicle load sensor for handling capacity of passengers in inspection vehicle.
Further, in described S3 step, multiple regions of vehicle are respectively arranged with the vehicle interior temperature collector for detecting vehicle interior temperature.
In order to realize second object, the present invention realizes according to following technical scheme:
Based on the new city rail traffic vehicles air-conditioner control system that the outer temperature of car and handling capacity of passengers change, include vehicle air conditioner controller and air-conditioner set, the vehicle load sensor for handling capacity of passengers in inspection vehicle, the outer temperature sensor of the car for temperature outside inspection vehicle and the vehicle interior temperature collector for detecting vehicle interior temperature.
Further, described vehicle air conditioner controller includes Temperature Control Model processor and temperature comparator.
Compared with prior art, its beneficial effect is in the present invention:
(1) by the factor such as mechanical power, clothing thermal resistance, mean radiant temperature, air themperature, relative air humidity considering the metabolic rate of human body self under different geographical natural environment and climate condition, human body does, the thermal comfort demand meeting passenger's human thermal response (warm-cold sensitivity) can accurately more be evaluated;
(2) by introducing the actual handling capacity of passengers of vehicle and the car external environment temperature signal variable calculating parameter as car internal object control temperature simultaneously, more comprehensive and accurately can calculate the car internal object control temperature met under this handling capacity of passengers thermal comfort demand, thus regulate the refrigerating capacity of air-conditioning;
(3) by introducing the actual handling capacity of passengers of vehicle and the car external environment temperature signal variable calculating parameter as car internal object control temperature simultaneously, make air-conditioner control system more can adjust the duty of air-conditioner set timely and effectively, avoid the handling capacity of passengers less period to occur phenomenon excessively cold in car, reduce the overall work energy consumption of air-conditioning system.
In order to the present invention can be understood more clearly, below with reference to accompanying drawing, elaboration the specific embodiment of the present invention is described.
Accompanying drawing explanation
Fig. 1 is control principle block diagram of the present invention.
Detailed description of the invention
As shown in Figure 1, the new city rail traffic vehicles air-conditioner control system changed based on the outer temperature of car and handling capacity of passengers of the present invention, include vehicle air conditioner controller and air-conditioner set, the vehicle load sensor (load measuring sensor that this vehicle load sensor can adopt rail vehicle itself to have utilizes the load signal of load measuring sensor) for handling capacity of passengers in inspection vehicle, the outer temperature sensor of the car for temperature outside inspection vehicle and the vehicle interior temperature collector for detecting vehicle interior temperature.Further, described vehicle air conditioner controller includes Temperature Control Model processor and temperature comparator.
The new city rail traffic vehicles air conditioning control method changed based on the outer temperature of car and handling capacity of passengers of the present invention, it comprises the following steps:
The conditional parameter computed information of S1, thermal resistance of wearing the clothes according to car outer air temperature, vehicle handling capacity of passengers and passenger carries out multiple linear regression, draws the binary vehicle interior temperature Controlling model T_in=k1*T_out-k2*n+k3 based on the outer temperature of car and handling capacity of passengers;
In formula, T_in is air themperature in car, and unit is DEG C;
T_out is car outer air temperature, and unit is DEG C;
N is density of standing in car, unit behaviour/m2;
K1 is the linear coefficient joined with car outer air temperature correlation;
The linear coefficient of k2 for being associated with density (i.e. handling capacity of passengers) of standing in car;
K3 is according to the correction-compensation radix under handling capacity of passengers condition in car outer air temperature, car;
Wherein, the numerical value defining method of K1, K2 and K3 is: (1), by wear the clothes custom and the relation of outside air temperature of analyst, uses interpolation method, obtains the correlation of clothing thermal resistance and outside air temperature.(2) by analyzing the relation of mean radiant temperature in stand density and car, calculating difference is stood under density, and the mean radiant temperature in car, simulates the correlation of two kinds.(3) clothing thermal resistance and mean radiant temperature are the material impact parameters calculating PMV index, thus, by the correlation calculated in (1), (2), outdoor temperature and density of standing are introduced in PMV computing formula.Under calculating different parameters value, Optimal Control temperature during control PMV=0.And by how far linear regression, obtain the value of K1, K2, K3, simulate the temperature control curve be associated with handling capacity of passengers and outside temperature.
Handling capacity of passengers signal in S2, the outer real time temperature signal of collection car and car, imports the Temperature Control Model of above-mentioned S1 step, obtains car internal object control temperature;
The real time temperature in multiple region in S3, collection car, average, the car internal object control temperature that rear and S2 step obtains compares, and automatically adjusts the duty of vehicle air conditioning unit according to comparative result, and then the output refrigerating capacity of adjusting air conditioning group, realize the auto-control of vehicle interior temperature.
In the present invention, the acquisition method of vehicle handling capacity of passengers, car external environment temperature and vehicle interior temperature signal is the method for continuous Real-time Collection, and the Temperature Control Model imported based on handling capacity of passengers and car external environment temperature carries out converting and comparison, to control the object that actual temperature in car reaches target control temperature.
The present invention is not limited to above-mentioned embodiment, if do not depart from the spirit and scope of the present invention to various change of the present invention or modification, if these are changed and modification belongs within claim of the present invention and equivalent technologies scope, then the present invention is also intended to comprise these change and modification.