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CN-122008775-A - Air conditioning system for vehicle and control method thereof

CN122008775ACN 122008775 ACN122008775 ACN 122008775ACN-122008775-A

Abstract

The invention provides an air conditioning system for a vehicle, wherein, in the execution of a heating mode of an HVAC unit and an adsorption mode or a regeneration mode of a humidity control device, when an occupant manually selects an external atmosphere introduction mode in the vehicle, the consumption of energy required for heating can be suppressed. The vehicle air conditioning system is provided with a flow path (10) through which the interior atmosphere and the exterior atmosphere outside the vehicle can flow, and which includes a damper (52) capable of adjusting the ratio of the amounts of the interior atmosphere and the exterior atmosphere introduced, a humidity control device (20) disposed in the flow path (10) and capable of executing an adsorption mode in which moisture is adsorbed and a regeneration mode in which moisture is released, an HVAC unit (30) capable of executing a heating mode in which the interior atmosphere and the exterior atmosphere are heated, and a control unit (40) capable of controlling the humidity control device (20), the HVAC unit (30), and the damper (52). A control unit (40) controls the damper (52) so that the ratio of the amount of external atmosphere introduced is 20-90% when the occupant manually selects the external atmosphere introduction mode in the vehicle during execution of the heating mode of the HVAC unit (30) and the adsorption mode or the regeneration mode of the humidity control device (20).

Inventors

  • History is worshipped in field, shore

Assignees

  • 日本碍子株式会社

Dates

Publication Date
20260512
Application Date
20251020
Priority Date
20241111

Claims (11)

  1. 1. An air conditioning system for a vehicle, wherein, The vehicle air conditioning system includes: A flow path through which an interior atmosphere in a vehicle and an exterior atmosphere outside the vehicle can flow, the flow path including a damper capable of adjusting a ratio of an amount of the interior atmosphere and an amount of the exterior atmosphere introduced; a humidity control device disposed in the flow path, the humidity control device being capable of executing an adsorption mode in which moisture is adsorbed and a regeneration mode in which the moisture is released; An HVAC unit capable of performing a heating mode for heating the internal atmosphere and the external atmosphere, and A control unit capable of controlling the humidity control apparatus, the HVAC unit, and the damper, The control unit controls the damper such that the ratio of the amount of external air introduced is 20 to 90% when an occupant manually selects the external air introduction mode in the vehicle during execution of the heating mode of the HVAC unit and the adsorption mode or the regeneration mode of the humidity control device.
  2. 2. The air conditioning system for a vehicle according to claim 1, wherein, The control unit controls the damper such that the ratio of the amount of external air introduced is 40 to 70% when an occupant manually selects the external air introduction mode in the vehicle during execution of the heating mode of the HVAC unit and the adsorption mode or the regeneration mode of the humidity control device.
  3. 3. The air conditioning system for a vehicle according to claim 1 or 2, wherein, The HVAC unit includes the damper capable of adjusting a ratio of the introduced amounts of the inside atmosphere and the outside atmosphere.
  4. 4. The air conditioning system for a vehicle according to claim 1 or 2, wherein, The humidity conditioning apparatus is disposed within the HVAC unit.
  5. 5. The air conditioning system for a vehicle according to claim 1 or 2, wherein, The humidity conditioning apparatus is disposed on an upstream side of the HVAC unit.
  6. 6. The air conditioning system for a vehicle according to claim 1 or 2, wherein, The flow path is branched at the downstream side of the humidity control equipment into a first flow path for flowing the internal atmosphere and the external atmosphere into the vehicle and a second flow path for flowing the internal atmosphere and the external atmosphere out of the vehicle, The vehicle air conditioning system further includes a first valve that is capable of switching the flow of the internal atmosphere and the external atmosphere between the first flow path and the second flow path.
  7. 7. The air conditioning system for a vehicle according to claim 1 or 2, wherein, The humidity control apparatus includes an adsorption unit including an adsorbent capable of adsorbing moisture at a predetermined temperature or lower and releasing the adsorbed moisture when the predetermined temperature is exceeded, and a heating mechanism or heating structure capable of heating the adsorption unit.
  8. 8. The air conditioning system for a vehicle according to claim 7, wherein, The humidity control apparatus includes: a honeycomb structure having an outer peripheral wall and partition walls disposed inside the outer peripheral wall and dividing into a plurality of cells extending from a first end surface to a second end surface to form flow paths for the internal atmosphere and the external atmosphere; an adsorption layer provided on the surface of the partition wall and containing the adsorbent, and And a pair of electrodes provided on the first end face and the second end face of the honeycomb structure or the outer peripheral wall of the honeycomb structure parallel to the direction in which the cells extend.
  9. 9. The air conditioning system for a vehicle according to claim 8, wherein, At least the partition walls of the honeycomb structure are made of a material having PTC characteristics.
  10. 10. A control method of an air conditioning system for a vehicle, wherein, The vehicle air conditioning system includes: A flow path through which an interior atmosphere in a vehicle and an exterior atmosphere outside the vehicle can flow, the flow path including a damper capable of adjusting a ratio of an amount of the interior atmosphere and an amount of the exterior atmosphere introduced; a humidity control device disposed in the flow path, the humidity control device being capable of executing an adsorption mode in which moisture is adsorbed and a regeneration mode in which the moisture is released; An HVAC unit capable of performing a heating mode for heating the internal atmosphere and the external atmosphere, and A control unit capable of controlling the humidity control apparatus, the HVAC unit, and the damper, In the control method of the air conditioning system for a vehicle, When the occupant manually selects the external atmosphere introduction mode in the vehicle during execution of the heating mode of the HVAC unit and the adsorption mode or the regeneration mode of the humidity control apparatus, the damper is controlled by the control unit so that the ratio of the external atmosphere introduction amount is 20 to 90%.
  11. 11. The control method of an air conditioning system for a vehicle according to claim 10, wherein, When the occupant manually selects the external atmosphere introduction mode in the vehicle during execution of the heating mode of the HVAC unit and the adsorption mode or the regeneration mode of the humidity control apparatus, the damper is controlled by the control unit so that the ratio of the external atmosphere introduction amount is 40 to 70%.

Description

Air conditioning system for vehicle and control method thereof Technical Field The present invention relates to a vehicle air conditioning system and a control method thereof. Background In various vehicles such as automobiles, there is an increasing demand for improving the cabin environment. Specific demands include reduction of CO 2 in the vehicle to suppress driver's trouble, conditioning of the vehicle, and removal of harmful volatile components such as odor components and allergy-inducing components in the vehicle. As an effective countermeasure against such a demand, ventilation is given, but ventilation is a factor that causes a large amount of heater energy to be lost in winter, resulting in a reduction in energy efficiency in winter. In particular, electric vehicles (BEV: battery ELECTRIC VEHICLE) have a problem in that the cruising distance is greatly reduced due to energy loss. As a method for solving the above-mentioned problems, there is proposed a cabin purifying system (vehicle air conditioning system) comprising a heater member (humidity control equipment), an inflow pipe connecting a cabin and an inlet end face of the heater member, and an outflow pipe having a first path (first flow path) connecting an outlet end face of the heater member and the cabin, wherein the heater member has a honeycomb structure having an outer peripheral wall and partition walls arranged inside the outer peripheral wall and partitioned into a plurality of cells forming flow paths extending from one end face to the other end face, at least the partition walls being composed of a material having PTC characteristics, a pair of electrodes formed of a first electrode provided on one end face and a second electrode provided on the other end face, and a functional material layer provided on a surface of the partition walls, the outflow pipe having a first path connecting the outlet end face of the heater member and the cabin, and a second path (second path) connecting the outlet end face of the heater member and the outside the vehicle, and provided between the first flow paths and the second flow paths being switchable between, for example, patent document 1. On the other hand, as an air conditioning system capable of performing cooling and Heating of a vehicle, an air conditioning system provided with an HVAC (Heating, ventilation and Air Conditioning) unit using a heat pump cycle has been proposed (for example, patent documents 2 and 3). Prior art literature Patent literature Patent document 1 International publication No. 2023/074202 Patent document 2 Japanese patent No. 6746742 Patent document 3 Japanese patent laid-open publication 2016-097817 Disclosure of Invention In a vehicle air conditioning system provided with a humidity control apparatus and an HVAC unit, if an occupant manually selects an external atmosphere introduction mode in a vehicle during execution of a heating mode of the HVAC unit and an adsorption mode or a regeneration mode of the humidity control apparatus, a ratio of an external atmosphere introduction amount reaches 100%, and an amount of energy consumption required for heating increases. The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an air conditioning system for a vehicle and a control method thereof, which can suppress the amount of energy consumption required for heating when an occupant manually selects an external air introduction mode in the vehicle during execution of a heating mode of an HVAC unit and an adsorption mode or a regeneration mode of a humidity control device. The present inventors have made intensive studies on a vehicle air conditioning system including a humidity control apparatus and an HVAC unit, and as a result, have found that the above-described problems can be solved by controlling a damper such that the ratio of the amount of external atmosphere introduced is 20 to 90% when an occupant manually selects an external atmosphere introduction mode in a vehicle during execution of a heating mode of the HVAC unit and an adsorption mode or a regeneration mode of the humidity control apparatus. Namely, the present invention is exemplified as follows. <1> An air conditioning system for a vehicle, comprising: A flow path through which an interior atmosphere in a vehicle and an exterior atmosphere outside the vehicle can flow, the flow path including a damper capable of adjusting a ratio of an amount of the interior atmosphere and an amount of the exterior atmosphere introduced; A humidity control device provided in the flow path, the humidity control device being capable of executing an adsorption mode in which moisture is adsorbed and a regeneration mode in which the moisture is released; An HVAC unit capable of performing a heating mode for heating the internal atmosphere and the external atmosphere, and A control unit capable of controlling the humidity control apparatus, the HVAC unit,