WO2016002876A1 - Dispositif de commande de climatisation et procédé de commande de climatisation pour véhicule hybride - Google Patents

Dispositif de commande de climatisation et procédé de commande de climatisation pour véhicule hybride Download PDF

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Publication number
WO2016002876A1
WO2016002876A1 PCT/JP2015/069118 JP2015069118W WO2016002876A1 WO 2016002876 A1 WO2016002876 A1 WO 2016002876A1 JP 2015069118 W JP2015069118 W JP 2015069118W WO 2016002876 A1 WO2016002876 A1 WO 2016002876A1
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WIPO (PCT)
Prior art keywords
heating
passenger compartment
internal combustion
combustion engine
conditioning control
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PCT/JP2015/069118
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English (en)
Japanese (ja)
Inventor
久保　賢明
山室　毅
星二 橋本
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日産自動車株式会社
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Publication of WO2016002876A1 publication Critical patent/WO2016002876A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
    • B60H1/03—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant and from a source other than the propulsion plant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant

Definitions

  • the present invention relates to control of the temperature and humidity of the passenger compartment of a hybrid vehicle.
  • the vehicle compartment is generally heated by using heat generated by the internal combustion engine.
  • the internal combustion engine in order to maintain the calorific value necessary for heating the passenger compartment, the internal combustion engine is intermittently operated, and the cooling water temperature of the internal combustion engine is maintained within a certain temperature range.
  • JP2012-35689 discloses a vehicle air conditioner that increases the rotational speed of an internal combustion engine in response to a heating request at a different increase rate according to the output ratio of the electric motor and the internal combustion engine as a technology related to heating of the passenger compartment. According to this vehicle air conditioner, even when a heating request is issued in a state where the output ratio of the internal combustion engine is low, the cooling water temperature can be raised early to satisfy the heating request.
  • the air conditioner When heating the passenger compartment using the heat generated by the internal combustion engine, the air conditioner heats the passenger compartment in an outside air circulation mode in which air outside the vehicle is circulated to the passenger compartment. For this reason, in the winter when the outside air temperature is low, the temperature of the passenger compartment and the temperature of the cooling water decrease in a short time after the operation of the internal combustion engine is stopped.
  • the surplus output of the internal combustion engine is obtained from the battery. Used for power storage.
  • the surplus output of the internal combustion engine is wasted, causing a problem of deteriorating fuel consumption.
  • the present invention has been made by paying attention to the above-mentioned problems, and suppresses frequent repetition of starting and stopping of an internal combustion engine for heating a passenger compartment of a hybrid vehicle, and also provides a vehicle with high energy efficiency as a whole vehicle.
  • An object of the present invention is to provide an air conditioning control device and an air conditioning control method for a hybrid vehicle that realizes room heating.
  • an air-conditioning control device of the present invention operates as a power source using an internal combustion engine, a power storage device, and the power of the power storage device, while being able to charge the power storage device as a generator. And an air conditioner that heats the passenger compartment using the cooling water of the internal combustion engine.
  • the air conditioning control device includes a heating request detection unit that detects a heating request for a passenger compartment, and an optimal fuel consumption operation so that the cooling water temperature of the internal combustion engine is maintained in a predetermined heating temperature region in response to the heating request.
  • the internal combustion engine controller that intermittently operates the internal combustion engine, a humidity acquisition unit that estimates or detects the humidity of the passenger compartment, and the outside air in the passenger compartment so that the humidity of the passenger compartment is maintained in a predetermined humidity region.
  • a circulation switching unit that switches between an outside air circulation mode that takes in and circulates and an inside air circulation mode that circulates the air in the passenger compartment, and an electric motor generates power with the surplus output of the internal combustion engine during optimal fuel consumption operation according to heating requirements
  • a power storage control unit that stores power in the power storage device.
  • FIG. 1 is a schematic configuration diagram of a hybrid vehicle to which an air conditioning control device according to an embodiment of the present invention is applied.
  • FIG. 2 is a flowchart for explaining a heating control routine executed by the controller according to the present embodiment.
  • FIG. 3 is a flowchart for explaining an air conditioning control routine executed by the controller.
  • FIG. 4 is a timing chart showing the transition of the cooling water temperature and the battery charge amount SOC by the conventional vehicle compartment heating control.
  • FIG. 5 is a timing chart showing execution results of the air conditioning control routine and the heating control routine by the controller of the present embodiment.
  • FIG. 6 is a timing chart showing another execution result of the air conditioning control routine and the heating control routine by the controller of the present embodiment.
  • the air conditioning control device of this embodiment is applied to a hybrid vehicle including an engine and an electric motor as power sources.
  • FIG. 1 is a schematic configuration diagram of a hybrid vehicle to which an air conditioning control device according to an embodiment of the present invention is applied.
  • the hybrid vehicle 1 of the present embodiment includes an engine 2 and an electric motor 3 as power sources, a transmission 4 provided on the output side of the engine 2 and the motor 3, and an output side of the motor 3.
  • the inverter 5 provided, the battery 10 as an electrical storage apparatus, and the controller 20 which controls these apparatuses are provided.
  • the engine 2 is constituted by a water-cooled internal combustion engine.
  • a radiator 6 is provided to radiate heat from the cooling water that cools the engine 2.
  • the radiator 6 is connected to a water jacket (not shown) provided in the engine 2 by a cooling passage.
  • the cooling water is circulated between the water jacket and the radiator 6 through this cooling passage according to the operation of a water pump (not shown), and the engine 2 is cooled by heat radiation in the radiator 6.
  • the battery 10 is electrically connected to the electric motor 3 through the inverter 5.
  • the inverter 5 rotates the electric motor 3 using the stored electric power of the battery 10 and charges the battery 10 by operating the electric motor 3 as a generator with respect to the rotation input from the engine 2 or the driving wheel. Do.
  • the HVAC device 8 is mounted on the hybrid vehicle 1 for heating and air conditioning of the passenger compartment 7 of the hybrid vehicle 1.
  • HVAC is an abbreviation for heating, ventilation, and air conditioning (Heating, Ventilation, and Air Conditioning).
  • the HVAC device 8 is provided with a PTC heater 9 as an electric heating device that operates with the stored power of the battery 10.
  • the PTC heater 9 is a heater using a PTC element whose internal resistance increases as the temperature rises. Note that PTC is an abbreviation for positive temperature coefficient (Positive Temperature Coefficient).
  • the controller 20 controls the operation of the engine 2, the drive control of the electric motor 3 via the inverter 5, the charge control of the battery 10 via the inverter 5, the control of the HVAC device 8 and the PTC heater 9, and the shift control of the transmission 4. And so on.
  • the controller 20 includes a central processing unit (CPU), a read only memory (ROM), a random access memory (RAM), and a microcomputer having an input / output interface (I / O interface). Note that the controller 20 can be constituted by a plurality of microcomputers.
  • the air conditioning control device of the present embodiment is configured by each function executed by the controller 20, that is, operation control of the engine 2, charge control of the battery 10 via the inverter 5, control of the HVAC device 8 and the PTC heater 9. .
  • the air conditioning control device includes a vehicle compartment temperature sensor 21 that detects the temperature of the vehicle compartment, a vehicle compartment humidity sensor 22 that detects the humidity of the vehicle compartment, An outside air temperature sensor 23 for detecting the temperature of the cooling water, and a cooling water temperature sensor 24 for detecting the temperature of the cooling water (hereinafter referred to as “cooling water temperature”).
  • the detection data of these sensors is output to the controller 20 via a signal circuit.
  • the controller 20 performs the following control when a heating request for the passenger compartment 7 is issued in the EV traveling mode in which the hybrid vehicle 1 is traveling by the operation of only the electric motor 3.
  • the heating request is issued, for example, when the temperature of the passenger compartment 7 detected by the passenger compartment temperature sensor 21 falls below a set temperature.
  • the control executed by the controller 20 includes heating control for raising the temperature of the passenger compartment 7 to a specified temperature range, an outside air circulation mode for taking outside air into the passenger compartment 7, and an inside air circulation mode for circulating the air in the passenger compartment 7. And air conditioning control for switching between.
  • the passenger compartment 7 is basically heated by using heat generated by the operation of the engine 2. Specifically, the cooling water discharged from the engine 2 is radiated by the radiator 6, and the temperature of the vehicle compartment 7 is raised by sending air warmed by this heat radiation to the vehicle compartment 7 using a blower fan. .
  • the controller 20 increases the cooling water temperature to a predetermined temperature range by causing the engine 2 to perform the optimum fuel consumption operation. During this time, the controller 20 maintains the passenger compartment 7 in the inside air circulation mode via the HVAC device 8. In the inside air circulation mode, since the outside air is not introduced into the compartment 7, the temperature in the compartment 7 is unlikely to decrease. Therefore, the heat generated by the operation of the engine 2 can be efficiently used for heating the passenger compartment 7.
  • the controller 20 charges the battery 10 via the inverter 5 by rotationally driving the electric motor 3 as a generator.
  • the humidity in the passenger compartment 7 increases due to water vapor generated by the driver and passengers in the passenger compartment 7.
  • the humidity in the passenger compartment 7 reaches the dew point (the point at which water vapor begins to condense due to the temperature in the passenger compartment 7)
  • the humidity in the compartment 7 reaches the dew point
  • the controller 20 switches the HVAC device 8 from the inside air circulation mode to the outside air circulation mode, thereby reducing the humidity inside the compartment 7.
  • the controller 20 performs control to intermittently operate the engine 2 so that the coolant temperature of the engine 2 is maintained in a predetermined temperature range, and maintains the humidity in the vehicle compartment 7 in the predetermined humidity region.
  • the switching control of the HVAC device 8 is performed. Therefore, by performing the inside-air circulation mode in a range where no condensation occurs in the passenger compartment 7, frequent repetition of intermittent operation of the engine 2 can be suppressed while suppressing a temperature drop in the passenger compartment 7.
  • the controller 20 operates the PTC heater 9 using the stored power of the battery 10 prior to the operation of the engine 2 for increasing the coolant temperature. Therefore, compared with the case where the PTC heater 9 is not used, the stop period of the engine 2 can be lengthened.
  • the controller 20 executes the heating control routine shown in FIG. 2 and the air conditioning control routine shown in FIG. 3 in parallel.
  • the heating control routine is executed using a heating request for the passenger compartment 7 as a trigger.
  • the controller 20 determines whether or not the cooling water temperature of the engine 2 is lower than the lower limit value ⁇ in response to the heating request of the passenger compartment 7 (step S1).
  • the lower limit value ⁇ corresponds to the lower limit value of the temperature range of the cooling water temperature required for heating the passenger compartment 7.
  • the coolant temperature of the engine 2 is a value detected by the coolant temperature sensor 24.
  • step S1 If it is determined that the cooling water temperature is equal to or higher than the lower limit value ⁇ , the controller 20 stands by in step S1 until the cooling water temperature falls below the lower limit value ⁇ . On the other hand, when it is determined in step S1 that the coolant temperature is lower than the lower limit value ⁇ , the controller 20 starts the optimum fuel consumption operation of the engine 2 (step S2). Specifically, the controller 20 refers to an optimal fuel consumption line map stored in advance in a ROM (not shown), and calculates an engine load that can realize the target cooling water temperature under the minimum fuel consumption. Then, the controller 20 controls the operation of the engine 2 based on the calculated engine load.
  • the controller 20 determines whether or not the coolant temperature is equal to or higher than the upper limit value ⁇ (step S3).
  • the upper limit value ⁇ corresponds to the upper limit value of the temperature range of the coolant temperature required for heating the passenger compartment 7.
  • step S3 When it is determined in step S3 that the cooling water temperature has not reached the upper limit value ⁇ , that is, the cooling water temperature is lower than the upper limit value ⁇ , the controller 20 continues the operation of the engine 2 while the cooling water temperature is the upper limit value. Wait in step S3 until ⁇ is reached. On the other hand, when it is determined in step S3 that the coolant temperature is equal to or higher than the upper limit value ⁇ , the controller 20 stops the operation of the engine 2 (step S4).
  • step S5 the controller 20 determines whether or not the coolant temperature is lower than the lower limit value ⁇ , similarly to step S1 (step S5).
  • the controller 20 stands by in step S5 until the cooling water temperature falls below the lower limit value ⁇ while the operation of the engine 2 is stopped.
  • step S6 the controller 20 determines whether or not the charge amount SOC of the battery 10 is equal to or higher than the lower limit value min (step S6).
  • the lower limit value min corresponds to a threshold value for determining whether to charge the battery 10 while the hybrid vehicle 1 is traveling.
  • step S7 the controller 20 turns on the PTC heater 9 (step S7).
  • the passenger compartment 7 is heated using the heat generated by the PTC heater 9.
  • step S8 the controller 20 performs the process of step S8.
  • step S6 determines whether the charge amount SOC is greater than or equal to the lower limit value min. If it is determined in step S6 that the charge amount SOC is not greater than or equal to the lower limit value min, the controller 20 returns the process flow to step S2 and repeats the processes in and after step 2. As described above, when the battery 10 is not charged as much as possible to operate the PTC heater 9, the controller 20 operates the engine 2 to heat the passenger compartment 7 by the heat generated by the engine 2.
  • the controller 20 can maintain the required temperature at the outlet of the HVAC device 8 required for heating the passenger compartment 7 only by the heat generated by the PTC heater 9 after the cooling water temperature falls below the lower limit value ⁇ .
  • a long time is calculated (step S8).
  • the required temperature of the outlet necessary for heating the passenger compartment 7 is determined in advance from the target temperature for heating the passenger compartment 7 input to the HVAC device 8 and the outside air temperature detected by the outside air temperature sensor 23. Further, the maintenance time of the outlet temperature is determined based on the difference between the required temperature of the outlet and the outside air temperature, the amount of heat generated by the PTC heater 9 for maintaining this difference, and the charge amount SOC of the battery 10. Is done.
  • step S9 the controller 20 counts (accumulates) the elapsed time since the PTC heater 9 is turned on in step S7 (step S9). Then, the controller 20 determines whether or not this elapsed time has reached the sustainable time calculated in step S8 (step S10).
  • the controller 20 repeats the processes of steps S9 and S10, whereby the PTC heater 9 Is kept on.
  • the controller 20 turns off the PTC heater 9 (step S11).
  • step S12 determines whether or not the heating request has been turned off. If it is determined that the heating request is not OFF, that is, if the heating request remains ON, the controller 20 repeats the processes after step S1. On the other hand, if it is determined that the heating request is OFF, the controller 20 ends this heating control routine.
  • FIG. 3 is a flowchart for explaining an air conditioning control routine executed by the controller 20.
  • This air conditioning control routine is executed at the same time as the blower switch provided in the HVAC device 8 is turned on. For example, if the HVAC device 8 is configured so that the air blowing switch is turned on in conjunction with the heating request, the air conditioning control routine is always executed in parallel when the heating control routine of FIG. 2 is executed. Become.
  • the controller 20 reads the humidity of the passenger compartment 7 detected by the passenger compartment humidity sensor 22 (step S21).
  • the controller 20 determines whether or not the read humidity of the passenger compartment 7 is less than the upper limit value A of the humidity region that is the control target (step S22).
  • the upper limit value A of the humidity region is set equal to, for example, the humidity corresponding to the dew point temperature at which the water vapor in the passenger compartment 7 starts to condense.
  • the controller 20 instructs the HVAC device 8 to enter the inside air circulation mode (step S23). Thereby, the HVAC device 8 performs air conditioning of the passenger compartment 7 in the inside air circulation mode in which the air in the passenger compartment 7 is circulated. For this reason, the temperature in the compartment 7 is not lowered.
  • the controller 20 determines whether or not the blower switch is turned off (step S26). If it is determined that the blower switch has been turned OFF, the controller 20 ends this air conditioning control routine. On the other hand, if it is determined that the blower switch remains ON, the controller 20 repeats the processes after step S21. In the present embodiment, the blower switch is turned off simultaneously with the heating request in step S12 of the heating control routine in conjunction with the heating request.
  • step S22 when it is determined in step S22 that the humidity of the passenger compartment 7 has reached the upper limit value A of the humidity region, the controller 20 instructs the HVAC device 8 to enter the outside air circulation mode (step S23). Thereby, the HVAC device 8 performs air conditioning of the passenger compartment 7 in the outdoor air circulation mode in which the outside air is taken into the passenger compartment 7.
  • the controller 20 detects the humidity of the passenger compartment 7 again (step S24). Then, the controller 20 determines whether or not the humidity of the passenger compartment 7 is equal to or higher than the lower limit value B of the humidity region based on the detected (read) humidity (step S25).
  • the lower limit value B of the humidity region is, for example, a humidity that the driver or passengers feel uncomfortable (dryness), etc.
  • Step S25 when it is determined that the humidity of the passenger compartment 7 is equal to or higher than the lower limit value B of the humidity region, the controller 20 repeats the processes after Step S23.
  • the controller 20 determines whether or not the blower switch has been turned off (step S26). If it is determined that the blower switch is OFF, the controller 20 ends this air conditioning control routine. On the other hand, if it is determined that the blower switch remains ON, the controller 20 repeats the processes after step S21.
  • the controller 20 executes the heating control routine (see FIG. 2) and the air conditioning control routine (see FIG. 3) in parallel. In other words, the controller 20 executes the heating control of the passenger compartment 7 in combination with the air conditioning control of the passenger compartment 7.
  • FIG. 4 is a timing chart showing the transition of the cooling water temperature and the battery charge amount SOC by the conventional vehicle compartment heating control.
  • FIG. 5 is a timing chart showing execution results of the air conditioning control routine and the heating control routine by the controller of the present embodiment.
  • FIG. 6 is a timing chart showing another execution result of the air conditioning control routine and the heating control routine by the controller of the present embodiment.
  • the heating control is performed depending on the heat radiation of the engine 2 in the outside air circulation mode.
  • An example of such conventional heating control will be first described below.
  • the air conditioning control device executes the heating control routine and the air conditioning control routine in parallel, so that the inside air circulation is performed until the humidity of the passenger compartment 7 reaches the upper limit value A.
  • Air conditioning is performed according to the mode.
  • the inside air circulation mode since cool outside air is not introduced into the passenger compartment 7, an increase in the coolant temperature due to the operation of the engine 2 is promoted, and a decrease in the coolant temperature after the engine 2 is stopped is suppressed. Therefore, the cooling water temperature can maintain a water temperature region necessary for heating the passenger compartment 7 for a relatively long time, that is, a temperature region between the upper limit value ⁇ and the lower limit value ⁇ in the figure. Accordingly, it is possible to suppress a problem that the engine 2 is frequently started and stopped for heating the passenger compartment 7 while traveling in the EV mode.
  • the engine 2 is operated in an optimum fuel consumption operation in which the target cooling water temperature is set to the upper limit value ⁇ .
  • the surplus output of the engine 2 is used to drive the electric motor 3 as a generator, and the battery 10 is charged using the generated power of the electric motor 3. Therefore, the output of the engine 2 operated for heating can be used effectively.
  • the charge amount SOC of the battery 10 has reached the lower limit value min in step S ⁇ b> 6 of the heating control routine, and the PTC heater 9 is not used. This corresponds to the case where the passenger compartment 7 is heated only by heat generated during operation of the engine 2.
  • step S6 of the heating control routine After the engine 2 is stopped, the control when the charge amount SOC of the battery 10 exceeds the lower limit value min in step S6 of the heating control routine will be described.
  • step S8 when the duration of the ON state of the PTC heater 9 reaches the sustainable time calculated in step S8, the controller 20 turns off the PTC heater 9 in step S11. Thereafter, when the controller 20 determines that the heating request is not OFF, the operation of the engine 2 is resumed in step S2.
  • the restart of the operation of the engine 2 can be delayed by heating the passenger compartment 7 by the PTC heater 9 using electric energy corresponding to the surplus. it can. That is, the stop period of the engine 2 can be lengthened by delaying the decrease in the temperature of the passenger compartment 7. As a result, frequent repetition of starting and stopping of the engine 2 can be further suppressed.
  • the controller 20 turns off the PTC heater 9. Therefore, the charging amount SOC of the battery 10 is not excessively consumed for heating the passenger compartment 7, and the charging power of the battery 10 can be utilized to the maximum extent possible.
  • the controller 20 calculates the required temperature of the air outlet to the passenger compartment 7 of the air conditioner in response to the heating request, the calculated required temperature of the air outlet, and the battery 10 Based on the charge amount SOC, the maintenance time of the required temperature of the outlet is calculated. Then, the controller 20 determines that the charge amount SOC has reached the lower limit value min when the sustainable time has elapsed since the PTC heater 9 was turned on. Therefore, in the air conditioning control device of the present embodiment, it is easily determined that the charge amount SOC has reached the lower limit value min without sequentially monitoring the charge amount SOC of the battery 10 by an output current sensor and an output voltage sensor (not shown). be able to.
  • the air conditioning control device for the hybrid vehicle 1 operates as a power source using the engine 2 as an internal combustion engine, the battery 10 as a power storage device, and the charging power of the battery 10,
  • An air conditioning control device for a hybrid vehicle 1 comprising an electric motor 3 capable of charging a battery 10 as a generator and an HVAC device 8 as an air conditioning device for heating the passenger compartment 7 using cooling water of the engine 2,
  • the HVAC device 8 that functions as a heating request detection unit that detects a heating request of the passenger compartment 7, a humidity sensor 22 that functions as a humidity acquisition unit that estimates or detects the humidity of the passenger compartment 7, and the engine 2 according to the heating request
  • the internal combustion engine control unit that intermittently operates the engine 2 by the optimum fuel consumption operation so that the cooling water temperature of the engine is maintained in a predetermined heating temperature range,
  • a circulation switching unit that switches between an outside air circulation mode in which outside air is circulated by being taken into the passenger compartment 7 and an inside air circulation mode in which the air in the passenger compartment 7 is circulated, and a heating request.
  • the inside air circulation of the air conditioning is performed so that the humidity in the passenger compartment 7 is maintained in a predetermined humidity region.
  • Switching between the mode and the outside air circulation mode In the heating in the inside air circulation mode, the heating efficiency of the passenger compartment 7 can be increased and the temperature in the passenger compartment 7 is not easily lowered even when the engine 2 is stopped. Therefore, the heating control is performed only in the outside air circulation mode.
  • the operation interval of the engine 2 can be expanded. As a result, frequent repetition of starting and stopping of the engine 2 for heating the passenger compartment 7 can be suppressed.
  • the air conditioning control device for the hybrid vehicle 1 further includes a PTC heater 9 as a PTC heater 9 that heats the passenger compartment 7 using the charging power of the battery 10, and the controller 10 has a charge amount of the battery 10.
  • the PTC heater 9 is activated to function as a PTC heater 9 controller that heats the passenger compartment.
  • the PTC heater 9 is first used by using the surplus storage amount of the charge amount SOC of the battery 10.
  • the vehicle compartment 7 is heated, and then the operation of the engine 2 is resumed. Therefore, it becomes possible to make the stop time of the engine 2 longer, and the frequent repetition of starting and stopping of the engine 2 for heating the passenger compartment 7 can be further suppressed.
  • the controller 10 stops the operation of the PTC heater 9 when the amount of charge of the battery 10 reaches a predetermined lower limit as a result of heating the passenger compartment 7 by the PTC heater 9. It is configured to be (OFF). Since it is configured in this manner, the battery 10 is not excessively discharged and the life of the battery 10 is not shortened.
  • the controller 10 calculates the required temperature of the air outlet to the passenger compartment 7 of the air conditioner in response to the heating request, detects the charge amount of the battery 10, Based on the required temperature of the mouth and the amount of charge of the battery 10, a sustainable time during which the required temperature of the outlet can be maintained is calculated, and it is determined that the amount of charge has reached a predetermined lower limit when the maintainable time has elapsed. Configured to do. By configuring the air conditioning control device of this embodiment in this way, the operation of the PTC heater 9 is turned off when the sustainable time has elapsed without sequentially monitoring the charge amount SOC of the battery 10. The battery 10 is not excessively discharged, and the life of the battery 10 is not shortened.
  • the upper limit value in the predetermined humidity region is the humidity corresponding to the dew point temperature at which condensation can occur in the passenger compartment.
  • the controller 10 operates in the room air circulation mode as long as the humidity of the passenger compartment 7 does not exceed a predetermined humidity region while the engine 2 is being operated in response to a heating request. Configured to apply.
  • the air conditioning control device of the present embodiment in this way, cool outside air is not introduced into the passenger compartment 7 unless the humidity of the passenger compartment 7 exceeds a predetermined humidity region. And the decrease in the coolant temperature after the engine 2 is stopped is suppressed. Therefore, the cooling water temperature can maintain a water temperature region necessary for heating the passenger compartment 7 for a relatively long time. Accordingly, it is possible to suppress a problem that the engine 2 is frequently started and stopped for heating the passenger compartment 7 while traveling in the EV mode.
  • the air conditioning control method for the hybrid vehicle 1 detects a heating request for the passenger compartment 7 in the hybrid vehicle 1 as described above, and the cooling water temperature of the engine 2 is set to a predetermined heating in response to the heating request.
  • the engine 2 is intermittently operated so as to be maintained in the temperature region, the humidity of the passenger compartment 7 is estimated or detected, and the outside air is supplied to the passenger compartment 7 so that the humidity of the passenger compartment 7 is maintained in a predetermined humidity region.
  • the engine 2 is operated in response to a heating request, the engine 2 is operated at an optimum fuel efficiency and the heating request is satisfied. Electricity is generated with the surplus output of the engine 2 during the optimum fuel consumption operation and is stored in the battery 10.
  • the air conditioning control method of the present embodiment the same effects as those of the above-described air conditioning control device can be achieved.
  • the present invention can also be applied to a hybrid vehicle that heats the passenger compartment 7 only by the heat generated by the engine 2.
  • the heating control routine in which steps S6 to S11 in FIG. 2 are omitted and the air conditioning control routine in FIG. 3 may be executed in parallel.
  • FIG. 5 an effect of suppressing frequent repetition of starting and stopping of the engine 2 for heating the passenger compartment 7 is obtained as compared with the conventional air conditioning control device. be able to.
  • the controller 20 turns off the PTC heater 9 based on the maintenance time of the outlet temperature.
  • the charge amount SOC of the battery 10 is successively monitored using an output current sensor, an output voltage sensor, or the like (not shown), and the PTC heater 9 is turned off when the charge amount SOC decreases to the lower limit value min. It is also possible to do.
  • the HVAC device 8 constitutes a heating request detection unit that detects a heating request for the passenger compartment.
  • the controller 20 constitutes an internal combustion engine control unit, a circulation switching unit, a power storage control unit, and an electric heating device control unit.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

　L'invention porte sur un dispositif de commande de climatisation, pour un véhicule hybride, qui est pourvu d'un détecteur de demande de chauffage pour détecter une demande pour chauffer l'intérieur du véhicule, d'une unité de commande de moteur à combustion interne pour faire fonctionner par intermittence un moteur à combustion interne par un fonctionnement à consommation de carburant optimale, de telle sorte que la température de l'eau de refroidissement du moteur à combustion interne est maintenue dans une plage de température de chauffage prescrite en fonction de la demande de chauffage, d'une unité d'acquisition d'humidité pour estimer ou détecter l'humidité de l'intérieur du véhicule, d'une unité de commutation de circulation pour effectuer une commutation entre un mode de circulation d'air extérieur, pour admettre de l'air extérieur dans l'intérieur du véhicule et faire circuler l'air, et un mode de circulation d'air intérieur, pour faire circuler l'air dans l'intérieur du véhicule, de telle sorte que l'humidité de l'intérieur du véhicule est maintenue dans une plage d'humidité prescrite, et une d'unité de commande de stockage électrique pour stocker de l'électricité dans un dispositif de stockage électrique à l'aide d'un moteur électrique afin de générer une puissance lors d'un excès de sortie du moteur à combustion interne pendant un fonctionnement à consommation de carburant optimale en fonction de la demande de chauffage.
PCT/JP2015/069118 2014-07-03 2015-07-02 Dispositif de commande de climatisation et procédé de commande de climatisation pour véhicule hybride WO2016002876A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014137648A JP6375731B2 (ja) 2014-07-03 2014-07-03 ハイブリッド車両の空調制御装置及び空調制御方法
JP2014-137648 2014-07-03

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KR102042322B1 (ko) * 2017-12-27 2019-11-07 현대자동차주식회사 하이브리드 차량의 난방 시 엔진 제어 방법

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JPH11245657A (ja) * 1998-03-06 1999-09-14 Mitsubishi Motors Corp ハイブリッド電気自動車のエンジン制御装置
JP2005147050A (ja) * 2003-11-18 2005-06-09 Toyota Motor Corp 自動車
JP2010255504A (ja) * 2009-04-24 2010-11-11 Toyota Motor Corp ハイブリッド車両の制御装置
JP2012035689A (ja) * 2010-08-05 2012-02-23 Nissan Motor Co Ltd 車両用空調装置
WO2012176284A1 (fr) * 2011-06-21 2012-12-27 トヨタ自動車 株式会社 Appareil de commande de véhicule

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JPH11245657A (ja) * 1998-03-06 1999-09-14 Mitsubishi Motors Corp ハイブリッド電気自動車のエンジン制御装置
JP2005147050A (ja) * 2003-11-18 2005-06-09 Toyota Motor Corp 自動車
JP2010255504A (ja) * 2009-04-24 2010-11-11 Toyota Motor Corp ハイブリッド車両の制御装置
JP2012035689A (ja) * 2010-08-05 2012-02-23 Nissan Motor Co Ltd 車両用空調装置
WO2012176284A1 (fr) * 2011-06-21 2012-12-27 トヨタ自動車 株式会社 Appareil de commande de véhicule

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