WO2002078990A1 - Systeme d'air conditionne d'un vehicule - Google Patents
Systeme d'air conditionne d'un vehiculeInfo
- Publication number
- WO2002078990A1 WO2002078990A1 PCT/JP2002/002949 JP0202949W WO02078990A1 WO 2002078990 A1 WO2002078990 A1 WO 2002078990A1 JP 0202949 W JP0202949 W JP 0202949W WO 02078990 A1 WO02078990 A1 WO 02078990A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- power
- power generation
- air conditioning
- increase
- allowable
- Prior art date
Links
- 238000004378 air conditioning Methods 0.000 title claims abstract description 305
- 238000010248 power generation Methods 0.000 claims abstract description 309
- 230000007423 decrease Effects 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 10
- 239000000446 fuel Substances 0.000 description 21
- 239000003507 refrigerant Substances 0.000 description 19
- 238000010586 diagram Methods 0.000 description 18
- 238000000034 method Methods 0.000 description 16
- 230000008569 process Effects 0.000 description 12
- 230000005540 biological transmission Effects 0.000 description 11
- 239000003795 chemical substances by application Substances 0.000 description 11
- 238000004891 communication Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 230000006735 deficit Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- DSCFFEYYQKSRSV-KLJZZCKASA-N D-pinitol Chemical compound CO[C@@H]1[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)[C@H]1O DSCFFEYYQKSRSV-KLJZZCKASA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- 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
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
-
- 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
- B60H1/32—Cooling 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
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3205—Control means therefor
- B60H1/3208—Vehicle drive related control of the compressor drive means, e.g. for fuel saving purposes
-
- 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
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3222—Cooling devices using compression characterised by the compressor driving arrangements, e.g. clutches, transmissions or multiple drives
-
- 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
- B60H1/32—Cooling devices
- B60H2001/3236—Cooling devices information from a variable is obtained
- B60H2001/3266—Cooling devices information from a variable is obtained related to the operation of the vehicle
-
- 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
- B60H1/32—Cooling devices
- B60H2001/3269—Cooling devices output of a control signal
- B60H2001/327—Cooling devices output of a control signal related to a compressing unit
- B60H2001/3273—Cooling devices output of a control signal related to a compressing unit related to the operation of the vehicle, e.g. the compressor driving torque
Definitions
- the present invention relates to an air conditioning system for a vehicle, which is used in a vehicle including a power storage means, a power generation means for charging the power storage means, and an air conditioning means having an electric compressor driven by power supply from the power storage means. Things. Background art
- a compressor in a car air conditioner (air conditioning means) used for a general automobile, a compressor is driven by a fuel engine (internal combustion engine).
- the high-temperature gas refrigerant discharged from the compressor and flowing into the outdoor heat exchanger is exchanged with the air outside the vehicle compartment by an outdoor blower to radiate heat, is condensed and liquefied, and is condensed and liquefied. It flows into the indoor heat exchanger provided in.
- the liquid refrigerant evaporates there and absorbs heat from the surroundings to exert a cooling function.
- This indoor heat exchanger exchanges heat with the air in the passenger compartment circulated by the indoor blower, cools the passenger compartment, and performs air conditioning. Then, the refrigerant flowing out of the indoor heat exchanger repeated the refrigeration cycle returning to the compressor.
- Such a car air conditioner is provided with a control device, and when the vehicle interior is cooled to a lower limit temperature between a predetermined upper limit temperature and a lower limit temperature set above and below the set temperature, the control device rotates the compressor. To OFF. Then, the temperature in the cabin increases and reaches the upper limit temperature. When it reaches, the controller turns on the compressor and restarts the cooling in the cabin. In this way, the cabin was cooled and the heating action from the heater was applied to air-condition the cabin to the set temperature throughout the four seasons.
- a parallel hybrid vehicle and a series that has both functions of these series and parallel ⁇ A parallel hybrid vehicle (HEV) charges the power generated by the fuel cell to the vehicle battery and runs on the power supplied from this battery Fuel cell vehicles (FCEVs) that run by driving a motor for use.
- FCEVs Fuel cell vehicles
- an electric compressor driven by power supply from a vehicle-mounted battery is used as a compressor of the air conditioning means (car air conditioner). If the in-vehicle battery is discharged due to the power consumption of the electric compressor, there is a problem that the driving itself is hindered.
- the present invention has been made to solve the problems of the related art, and has a power storage means, a power generation means for charging the power storage means, and an electric compressor driven by power supply from the power storage means.
- An object of the present invention is to provide an air conditioning system for a vehicle that includes an air conditioner and does not hinder running itself due to power consumption in the air conditioner. Disclosure of the invention
- An air conditioning system for a vehicle is applied to an automobile including a power storage unit, a power generation unit for charging the power storage unit, and an air conditioning unit having an electric compressor driven by power supply from the power storage unit.
- the allowable discharge increase star is added to the allowable power increase amount based on the allowable discharge increase amount. Calculating the permissible power consumption increase in the air conditioning means, increasing the power consumption of the air conditioning means within the range of the permissible power consumption increase, and increasing the power consumption of the air conditioning means.
- the power generation amount of the power generation means is increased within the range of the allowable power generation increase amount.
- the vehicle air conditioner includes: a power storage means; a power generation means for charging the power storage means; and an air conditioning means having an electric compressor driven by power supply from the power storage means.
- Control means for controlling the power generation by the power generation means and the operation of the air conditioning means comprising: a permissible increase in power generation allowed by the power generation means; Calculating an allowable power consumption increase in the air conditioning means by adding the allowable discharge increase amount to the allowable power generation increase amount based on the allowable discharge increase amount allowed in the range of the allowable power consumption increase amount.
- the power consumption of the air conditioning means is increased within the range, and the power generation amount of the power generation means is controlled within the range of the allowable power generation increase in accordance with the increase in the power consumption of the air conditioning means. Therefore, the increase in power consumption of the air-conditioning means is limited to at least the allowable power consumption increase of the power generation means plus the allowable discharge increase of the power storage means. .
- the air conditioning means Since the increase in power consumption also takes into account the increase in the allowable discharge of the storage means, under conditions where the running load is light, the storage means is discharged within the allowable range to maximize the air-conditioning capacity of the air conditioning means. This will make it possible to achieve more comfortable air conditioning in the cabin.
- the automotive air conditioning system of the present invention includes a power storage means, a power generation means for charging the power storage means, and an air conditioning means having an electric compressor driven by power supply from the power storage means.
- Control means for controlling the power generation by the power generation means and the operation of the air conditioning means comprising: a permissible increase in power generation allowed by the power generation means; Calculating an allowable power consumption increase in the air conditioning means by adding the allowable discharge increase amount to the allowable power generation increase amount based on the allowable discharge increase amount allowed in the range of the allowable power consumption increase amount.
- the power consumption of the air conditioning means is increased, and the power generation amount of the power generation means is increased by an amount corresponding to the increase in the power consumption of the air conditioning means exceeding the allowable discharge increase amount. Characterized in that it makes.
- a vehicle including a power storage means, a power generation means for charging the power storage means, and an air conditioning means having an electric compressor driven by power supply from the power storage means
- Control means for controlling the power generation by the power generation means and the operation of the air conditioning means, the control means comprising: an allowable power generation increase amount permitted by the power generation means; and the power storage means.
- the allowable power increase in the air-conditioning means is calculated by adding the allowable discharge increase to the allowable power increase based on the allowable discharge increase allowed in While increasing the power consumption of the air conditioning means within the range, the increase in the power consumption of the air conditioning means Since the power generation amount of the power generation means is increased by the amount exceeding the allowable discharge increase amount, the power consumption of the air conditioning means is increased by adding at least the allowable discharge increase amount of the power storage means to the allowable power generation amount of the power generation means. The power consumption will be limited within the range of increase.
- the increase in power consumption of the air-conditioning means also takes into account the increase in the allowable discharge of the power storage means.Therefore, when the running load is light, the power storage means is discharged within the allowable range to achieve air conditioning.
- the air conditioning system for a vehicle further includes a driving unit for driving the power generation unit in each of the above inventions, and the control unit includes a marginal power generation amount that can further generate power by the power generation unit and an output from the driving unit. It is characterized in that the allowable power generation is compared with a possible surplus horsepower, and the smaller value is set as the allowable power generation increase.
- the vehicle air-conditioning system further includes a driving unit that drives the power generating unit.
- a driving unit that drives the power generating unit.
- the control means is in a range from zero to 1 in proportion to a value obtained by subtracting the surplus horsepower from a value obtained by adding the allowable power generation increase and the allowable discharge increase.
- the control means sets a zero in proportion to a value obtained by subtracting the extra horsepower from a value obtained by adding the allowable power generation increase and the allowable discharge increase.
- the permissible power utilization is calculated. Since the increase in power consumption is calculated, the ratio of the surplus horsepower to the value obtained by adding the increase in the allowable power generation and the increase in the allowable discharge is large, and when the surplus power utilization rate is low, the increase in the allowable power consumption is small, and conversely.
- the ratio of surplus horsepower is small and the surplus power utilization ratio is large, the increase in allowable power consumption is large.
- the automotive air conditioning system of the present invention includes a power storage means, a power generation means for charging the power storage means, and an air conditioning means having an electric compressor driven by power supply from the power storage means.
- Control means for controlling the operation of the air-conditioning means, wherein the control means calculates an allowable increase in power generation allowed by the power-generating means;
- the power consumption of the air conditioning means is increased within the range of the allowable power generation increase, and the power generation of the power generation means is increased in accordance with the increase in power consumption of the air conditioning means. .
- a vehicle including a power storage means, a power generation means for charging the power storage means, and an air conditioning means having an electric compressor driven by power supply from the power storage means
- Control means for controlling the power generation by the power generation means, and operation of the air conditioning means, wherein the control means calculates an allowable increase in power generation allowed by the power generation means,
- the power consumption of the air conditioner is increased within the range of the allowable power generation increase, and the power generation amount of the power generation means is increased in accordance with the increase in the power consumption of the air conditioner.
- the increase in power will be limited to at least the allowable increase in power generation means.
- the power storage means is discharged by the power consumption of the air-conditioning means, and the power storage amount of the power storage means is reduced, or the inconvenience of poor running and impossibility of running due to complete discharge can be solved. become able to.
- the amount of power generated by the power generation means is increased in accordance with the increase in the power consumption of the air conditioning means, so that the air conditioning capacity of the air conditioning means can be ensured as much as possible, and the air conditioning performance in the passenger compartment deteriorates. Can be prevented or minimized.
- the air conditioning system for a vehicle further includes a driving unit that drives the power generation unit, wherein the control unit includes a surplus power generation amount that can be further generated by the power generation unit and the drive unit can further output. And a smaller value is used as the permissible power generation increase.
- a driving unit for driving the power generation unit is provided, and the control unit includes a marginal power generation amount that can be further generated by the power generation unit and an output of the driving unit. Since the allowable power generation is compared with a possible surplus horsepower and the smaller value is set as the allowable power increase, a more accurate allowable power increase is calculated in consideration of the surplus horsepower of the driving means for driving the power generation means. Thus, it is possible to execute the control for increasing the power consumption of the air conditioning means.
- the automotive air conditioning system of the present invention includes a power storage means, a power generation means for charging the power storage means, and an air conditioning means having an electric compressor driven by power supply from the power storage means.
- the power storage device includes a current detection unit that is used in an automobile and detects a discharge current value from the power storage unit, and a control unit that controls power generation by the power generation unit, wherein the control unit detects the power storage detected by the current detection unit. When the discharge current value exceeds a predetermined allowable value based on a discharge current value from the means, the power generation amount of the power generation means is increased from a predetermined initial value.
- a vehicle including a power storage means, a power generation means for charging the power storage means, and an air conditioning means having an electric compressor driven by power supply from the power storage means
- a current detection unit for detecting a discharge current value from the power storage unit, and a control unit for controlling power generation by the power generation unit.
- the control means based on a discharge current value from the power storage means detected by the current detection means, when the discharge current value exceeds a predetermined allowable value, changes a power generation amount of the power generation means from a predetermined initial value. Because of the increase, the amount of power stored in the power storage means decreases due to the power consumption of the air conditioning means, or the inconvenience of driving failure and running impairment due to complete discharge of electricity can be effectively eliminated.
- control unit controls the power generation amount of the power generation unit so that the discharge current value decreases to a predetermined return value lower than the allowable value.
- the power generation amount of the power generation means is returned to the initial value.
- the control means controls the power generation amount of the power generation means such that the discharge current value decreases to a predetermined return value lower than the allowable value.
- the power generation amount of the power generation unit is returned to the initial value, so that the power storage amount of the power storage unit is reduced or the power storage unit is completely discharged.
- the amount of power generated by the power generation means is controlled without any problem.
- control unit controls the operation of the air conditioning unit, and when the power generation amount of the power generation unit reaches an upper limit, the control unit controls the operation of the air conditioning unit. Stop increasing power consumption or execute control to reduce the power consumption It is characterized by that.
- the control means controls the operation of the air conditioning means, and when the power generation amount of the power generation means reaches an upper limit, the control means Since the increase in the power consumption of the air-conditioning means is stopped or the control to reduce the power consumption is executed, the power storage means uses the power consumption of the air-conditioning means while securing the air-conditioning capacity of the air-conditioning means as much as possible. In this way, it is possible to reliably prevent the inconvenience that the electric storage star is lowered or the electric discharge is completely exhausted, resulting in poor running or inability to run.
- the automotive air conditioning system of the present invention includes a power storage means, a power generation means for charging the power storage means, and an air conditioning means having an electric compressor driven by power supply from the power storage means.
- the electric vehicle includes an electric current detecting means for detecting a charging current value to the electric storage means, and a control means for controlling power generation by the electric power generating means, wherein the controlling means detects the electric current by the electric current detecting means.
- the power generation amount of the power generation means is increased from a predetermined initial value.
- a vehicle including a power storage means, a power generation means for charging the power storage means, and an air conditioning means having an electric compressor driven by power supply from the power storage means And a control means for controlling power generation by the power generation means, wherein the control means controls the power storage means detected by the current detection means.
- the charging current value falls below a predetermined lower limit value based on the charging current value
- the power generation amount of the power generation means is increased from a predetermined initial value, so that charging of the power storage means is ensured.
- the power consumption of the air conditioning As a result, it is possible to prevent the charging of the power storage means from being stopped, and to effectively eliminate the inconvenience that the power storage stars of the power storage means are reduced or the discharge ends, resulting in poor running or inability to run. become.
- control means controls a power generation amount of the power generation means so that the charging current value rises to a predetermined return value higher than the lower limit value.
- the amount of power generation is lower than the initial value, the amount of power generated by the power generation means is returned to the initial value.
- the control means controls the power generation amount of the power generation means so that the charging current value rises to a predetermined return value higher than the lower limit value.
- the power generation amount is lower than the initial value, the power generation amount of the power generation unit is returned to the initial value, so that charging of the power storage unit is secured, and the power storage amount of the power storage unit decreases, or
- the amount of power generated by the power generation means can be controlled without any trouble, while eliminating the disadvantage that the power storage means is completely discharged.
- control unit controls the operation of the air conditioning unit, and when the power generation amount of the power generation unit reaches an upper limit, the control unit controls the operation of the air conditioning unit. It is characterized by stopping the increase in power consumption or executing control to reduce the power consumption.
- the control means controls the operation of the air conditioning means, and when the power generation amount of the power generation means reaches an upper limit, the control means Since the increase in the power consumption of the air-conditioning means is stopped or the control to reduce the power consumption is executed, the power storage means uses the power consumption of the air-conditioning means while securing the air-conditioning capacity of the air-conditioning means as much as possible. Storage capacity has decreased, or This makes it possible to reliably prevent the inconvenience of running failure and inability to run due to discharge.
- the air conditioning system for a vehicle is characterized in that, in each of the above inventions, the vehicle is an electric vehicle driven by a driving motor supplied with power from the power storage means.
- the vehicle is an electric vehicle running by a running motor re-supplied by the power storage means. It will be possible to effectively eliminate the adverse effect of the operation of the air conditioning means on the operation of the electric vehicle while smoothly performing the air conditioning in the room.
- FIG. 1 is a configuration diagram of a hybrid vehicle as an embodiment to which the automotive air conditioning system of the present invention is applied.
- FIG. 2 is a configuration diagram of a drive system of the vehicle shown in FIG.
- FIG. 3 is a configuration diagram of an air conditioner as an air conditioner in the present invention
- FIG. 4 is a refrigerant circuit diagram of the air conditioner of FIG. 3
- FIG. 5 is a hybrid vehicle.
- FIG. 6 is a block diagram of a control system of a vehicle to which the vehicle air-conditioning system of the present invention is applied.
- FIG. 6 is a flowchart relating to power control by the vehicle air-conditioning system of the present invention.
- FIG. 8 is a flowchart relating to another electric power control by the automotive air conditioning system of the present invention.
- FIG. 8 is a flowchart relating to another electric power control by the automotive air conditioning system of the present invention.
- Figure 8 That release are diagrams and trends for explaining changes in power generation of Denden current value, the first 0 figure yet another other conductive by automotive air conditioning system of the present invention
- FIG. 11 is a flowchart relating to power control.
- FIG. 11 is a flowchart relating to yet another power control by the automotive air-conditioning system of the present invention.
- FIG. 12 is a flowchart relating to charging in FIG.
- Fig. 13 is a diagram for explaining changes in the current value and changes in the amount of power generation.
- Fig. 13 is a block diagram of the control system of the vehicle corresponding to Fig. 5 when the air conditioning controller is not connected to CAN.
- FIG. 14 is a block diagram of the vehicle control system when the vehicle air conditioning system of the present invention is applied to a fuel cell vehicle.
- Fig. 15 shows the connection of the air conditioning controller to CAN.
- FIG. 16 is a block diagram of a vehicle control system corresponding to FIG. 14 in the case where the vehicle air conditioner is not used, and
- FIG. 16 is a block diagram of the vehicle control system when the vehicle air conditioning system of the present invention is applied to a normal fuel engine vehicle.
- Fig. 17 is a block diagram.
- FIG. 16 is a block diagram of a vehicle control system corresponding to FIG. 16 when the adjustment control device is not connected to CAN.
- FIG. 1 is a configuration diagram of an automobile 1 as an embodiment to which the automotive air conditioning system of the present invention is applied
- Fig. 2 is a configuration diagram of a drive system of the automobile 1 in Fig. 1
- Fig. 3 is an embodiment of the present invention.
- FIG. 4 is a configuration diagram of an air conditioner (AC) 9 as an air conditioner in FIG. 4
- FIG. 4 is a refrigerant circuit diagram of the air conditioner 9
- FIG. 5 is a block diagram of a control system of a vehicle 1 including a vehicle air conditioning system of the present invention. Each figure is shown.
- a vehicle 1 of the embodiment is the above-described hybrid vehicle (HEV).
- the vehicle 1 has an engine (internal combustion engine) 2 and an air conditioner 28 having an air-conditioning control device 28 which constitutes control means.
- Equipment (air conditioning means) 9 is installed.
- Air conditioner 9 is a car 1 For air-conditioning such as cooling, heating and dehumidification in the passenger compartment of the vehicle.
- Rotary compressor (electric compressor) composed of a compressor, etc. 10
- the piping on the discharge side of 10 A is condensed as an outdoor heat exchanger
- the outlet side of the condenser 13 is connected to the receiver 17.
- the pipe 17 A on the outlet side of the receiver 17 is connected to an expansion valve 18 as a pressure reducing device, and the expansion valve 18 is connected to an evaporator 19 as an indoor heat exchanger (cooler). .
- the outlet side of the evaporator 19 is connected to the piping 10 B on the suction side of the compressor 10 to form an annular refrigeration cycle (refrigerant circuit) (FIG. 4).
- reference numeral 33 denotes a heater which is used to heat the vehicle interior.
- the compressor 10, the condenser 13, the engine 2, and the like are provided outside the passenger compartment where no one gets on the vehicle, and the evaporator 19 is installed inside the vehicle passenger compartment.
- the compressor 10 is provided with a compressor motor (electric motor) 11, and the compressor 10 is driven by the compressor motor 11.
- An outdoor blower 15 is provided in the condenser 13, and the outdoor blower 15 is driven to rotate by an outdoor blower motor 16.
- the evaporator 19 is provided with an indoor blower 21, and the indoor blower 21 is rotationally driven by an indoor blower motor 22.
- a temperature sensor 12 for detecting a refrigerant discharge temperature is provided on a refrigerant discharge side of the compressor 10, and a temperature sensor 14 for detecting a refrigerant outlet temperature is provided on a refrigerant outlet side of the condenser 13.
- a temperature sensor 20 for detecting the refrigerant outlet temperature is provided on the refrigerant outlet side of the evaporator 19, and these are connected to the air conditioning controller 28.
- a temperature sensor 23 for detecting the temperature of the air blown into the passenger compartment from the indoor blower 21 is also connected to the air conditioning controller 28. I have.
- the outdoor blower motor 16, the indoor blower motor 22, the temperature setting volume 24 provided on the air conditioning operation panel in the passenger compartment, or the air conditioning switch 25 are also connected to the air conditioning controller 28. .
- the air-conditioning control device 28 converts the voltage (for example, DC 240 V) of the vehicle-mounted battery (or a capacitor, both of which constitute power storage means. BATT) 5 to a desired voltage by a predetermined step-up / step-down circuit. The voltage is stepped up or down, and the voltage is converted into the drive voltage of the compressor motor 11 by the inverter, and the compressor 10 is driven to rotate.
- DC 240 V for example, DC 240 V
- BATT power storage means.
- the voltage is stepped up or down, and the voltage is converted into the drive voltage of the compressor motor 11 by the inverter, and the compressor 10 is driven to rotate.
- the air conditioner control device 28 changes the rotation speed of the indoor blower 21 to AUT 0 that rotates in proportion to the rotation speed of the compressor 10 and the rotation speed of the indoor blower 21 in three stages of 1.2.3 at a fixed rate.
- a blower fan switch 26 is connected to determine the blower that blows into the vehicle cabin manually.
- Reference numeral 27 converts the voltage of the battery 5 to DC 12 V and operates a headlight, a direction indicator, a radio (not shown in FIG. 5 with other loads), an air conditioning control device 28, etc. which are not shown. This is a converter that generates a power supply (auxiliary power supply).
- the automobile 1 includes an engine (internal combustion engine) 2, a traveling motor (an electric motor as driving means for traveling. M) 3, and a generator (power generating means.
- G) 4 (these constitute the motor control system 37 of the HEV), and the traveling motor 3 is connected to the on-board battery (DC240) via the motor control inverter 3A.
- V) 5 and the generator 4 is connected to the on-board battery 5 via a power generation inverter (INV) 4A.
- a torque dividing mechanism (not shown) is connected to the engine 2, the driving motor 3, and the generator 4. The torque dividing mechanism rotates the driving motor 3 and the generator 4, and the engine 2 and the driving motor 3. And drives the continuously variable transmission 6 described later.
- the technology for driving the continuously variable transmission 6 by combining the rotation of the traveling motor 3 and the generator 4 and the rotation of the engine 2 and the traveling motor 3 with one by the torque dividing mechanism is a known technique. Therefore, detailed description is omitted.
- the traveling motor 3 is mainly used at the time of starting with low heat efficiency of the engine 2 and at low speed, and is also used as an assist driving source when a driving force is required more than the driving force of the engine 2 alone. Then, as the engine 2 moves to a high speed with good thermal efficiency, it operates under the initiative of Engine 2. In addition, when the engine 2 is driven, the power generated by the generator 4 is charged to the vehicle battery 15 according to the state of charge of the vehicle battery 5.
- the generator 4 is used not only for generating power during rotation of the engine 2 but also as a star when the engine 2 is started.
- the continuously variable transmission (CVT mechanism (Conti n u u u u s ly V a r i a b I e T ran s mi s s io n)) 6 is connected to wheels 7. Then, the engine 2 or the traveling motor 3 rotates the wheels 7 via the continuously variable transmission 6 to drive the automobile 1.
- the technique for rotating the vehicle 1 by rotating the wheels 7 by the continuously variable transmission 6 driven by the engine 2 or the traveling motor 3 is a well-known branching technique, and will be described in detail. Omitted.
- Reference numeral 8 in FIG. 5 denotes a main control unit (VCU) of the automobile 1 which constitutes the control means, and steps up or down the voltage of the on-board battery 5 (DC 240 V) to a predetermined voltage by the same step-up / step-down circuit as described above. Then, the driving voltage is converted into the driving voltage of the driving motor 3 by the inverter (motor control inverter 3A), and the driving motor 3 is rotated.
- VCU main control unit
- the air-conditioning control device 28 generates a drive signal for the compressor 10. Then, the air conditioning control device 28 detects the position of the rotor of the compressor motor 11 from the induced voltage of the compressor motor 11, The operating frequency (rotational speed) of the compressor motor 11 is controlled by an inverter that creates the next excitation pattern using an IS microcomputer.
- reference numeral 32 denotes a battery control unit (BATTECU) for controlling the power of the vehicle-mounted battery 5
- reference numeral 34 denotes a battery control device for transmitting a torque command, an accelerator opening, and the like to the engine 2 to control its operation.
- Engine control unit (ENGECU) Reference numeral 36 denotes a driving operation unit such as an accelerator, a brake pedal, and a shift lever of the vehicle 1, and a sensor for detecting an operation position and an operation state of the operation unit is connected to the main control device 8.
- the compressor motor 11 and the outdoor blower motor 16 are powered by the on-board battery 5.
- the air conditioning controller 28 controls the operating frequency of the compressor motor 11 to control the capacity of the compressor 10.
- the high-temperature and high-pressure gas refrigerant compressed and discharged by the compressor 10 flows into the condenser 13 from the pipe 1OA.
- the condenser 13 is cooled outside the vehicle compartment by the blower of the outdoor blower 15 (arrows in FIG. 1).
- the gas refrigerant that has flowed into the condenser 13 radiates heat there to be condensed and liquefied, and then flows into the receiver 17.
- the liquid coolant once stored in the liquid receiver 17 reaches the expansion valve 18 via the pipe 17A, is throttled there, and then flows into the evaporator 19.
- the refrigerant flowing into the evaporator 19 evaporates there and absorbs heat from the surroundings at that time to exert a re-cooling effect, and the cooled air in the cabin is circulated into the cabin by the indoor blower 21. Then, it cools and performs air conditioning (arrows in Fig. 1).
- the refrigerant exiting the evaporator 19 enters an accumulator (not shown), where unevaporated refrigerant is separated into gas and liquid. After that, only the gas refrigerant is sucked into the compressor 10, and the refrigeration cycle in which the gas refrigerant is compressed and discharged again by the compressor 10 is repeated.
- the temperature of the air blown into the cabin (the temperature detected by the temperature sensor 23 for detecting the temperature of the air blown into the cabin from the indoor blower 21) and the operating frequency of the compressor motor 11
- the relationship between the rotation speed of the indoor blower motor 22 and the number of rotations is shown in the following formula.
- PI proportional / integral
- a F K p X A e + K i X e ''-(2)
- ⁇ F calculated value of the target operating frequency variation
- Kp proportional constant
- Ki integral constant
- F m indicates the previous target operating frequency. Apply the target operating frequency obtained from the above formula to the following formula, and perform PWM control (adjustment of applied voltage) on the applied voltage of the indoor blower motor 22 to adjust the air volume of the indoor blower 21.
- MAX duty is the maximum duty of the indoor blower PWM control
- MIN duty is the minimum duty of the indoor blower PWM control.
- MAX frequency Maximum target operation frequency
- MIN frequency Minimum target operation frequency.
- the air-conditioning control device 28 determines the operating frequency of the compressor motor 11 based on the temperature of the air blown into the vehicle interior by the indoor blower 21. Then, the rotation speed of the indoor blower motor 22 is controlled based on the determined operating frequency of the compressor motor 11. In other words, if the temperature of the air in the passenger compartment is slightly higher than the set temperature set by the temperature setting volume 24, the operating frequency of the compressor motor 11 and the rotation speed of the indoor blower motor 22 are slightly increased. (The power consumption of the air conditioner 9 including the compressor motor 11 slightly increases). As a result, the rotational noise between the compressor motor 11 and the indoor blower motor 22 does not become excessively large, but only increases slightly.
- the operating frequency of the compressor motor 11 and the rotation speed of the indoor blower motor 22 are increased. Air conditioning in the passenger compartment is rapidly performed, and comfortable air conditioning can be performed (power consumption of the air conditioner 9 including the compressor motor 11 greatly increases).
- the capacity control by controlling the operation wave number of the compressor motor 11 and the indoor blower 2 determined based on the control are performed. With a slight air volume control of 1, it is possible to provide comfortable vehicle air conditioning.
- the air-conditioning control device 28 controls the operating frequency of the compressor motor 11 overnight from the deviation between the outlet temperature of the evaporator 19 and the set temperature, the larger the temperature deviation, the larger the temperature deviation. So much If the rotation speed of the compressor motor 11 is large (power consumption is large), and if the temperature deviation is eliminated, the rotation speed of the compressor motor 11 will be small and close to zero (low power consumption).
- the interior blower motor 2 2 is controlled in the same way as the compressor motor 1 1, so it is possible to blow air at an air volume that matches the temperature difference felt by the occupants in the cabin, and to achieve comfortable air conditioning in the cabin Becomes
- the vehicle-mounted battery 5 supplies power to the recompressor motor 11, the number of revolutions of the compressor motor 11 can be easily controlled. As a result, it is possible to suitably control the rotation speed of the compressor motor 11. Therefore, the compressor 10 can be suitably driven, and comfortable air conditioning in the vehicle compartment can be performed.
- CT 1 is a current transformer (current transformer) for detecting a charging current value to the vehicle-mounted battery 5 and a discharging current value from the vehicle-mounted battery 5, and is detected by the current transformer CT 1.
- the charge current value or discharge current value is input to the battery control device 32.
- C T2 is a current transformer for detecting the generated current value of the generator 4, and the generated current value detected by the current transformer C T 2 is input to the motor control system 37.
- the CT 3 is a power transformer for detecting the generated current value after passing through the power generation inverter 4 A.
- the generated current value detected by the current transformer CT 3 is also input to the motor control system 37.
- CT 5 is a current transformer that detects a current value (current consumption value) of the air conditioner 9 including the compressor motor 11.
- the current value detected by the CT 5 is input to the air conditioning controller 28.
- the main control unit 8, motor control system 37, engine control unit 34, battery control unit 32, and air conditioning control unit 28 are connected to a network (hereinafter referred to as CAN) in the automobile 1. Data transmission and reception are performed mutually via CAN.
- the data of the detected current value (discharge current, charging current, generated current) of each current transformer etc. is also transmitted from the motor control system 37 and the control devices 32, 28 to CAN, and connected to CAN. Devices can be used mutually.
- the motor control system 37 has the above-mentioned margin that allows the generator 4 to generate more power based on the current generated current value of the generator 4 detected by the current transformers CT 2 and CT 3 and the number of revolutions of the engine 2.
- Calculate the power generation ⁇ G 1 maximum allowable power that can be supplied by the generator 4-current generated power).
- the data of the surplus power generation ⁇ G 1 is transmitted to C AN.
- the engine control device 34 calculates the horsepower ⁇ H that the engine 2 can output further by subtracting the currently output torque from the maximum torque curve of the engine 2.
- the data of the surplus horsepower ⁇ is transmitted to the CAN.
- the battery control device 32 estimates the amount of charge stored in the on-board battery 5 from the integrated value of the discharge current detected by the current transformer CT 1 and the voltage of the on-board battery 5, and the discharge detected by the current transformer CT 1 Based on the current value and the amount of charge stored in the on-board battery 15, the allowable discharge increase ⁇ E, which is the increase in the discharge current allowed by the on-board battery 5 (the limit discharge amount of the battery 5-the current discharge amount), is calculated. Then, the data of the allowable discharge increase ⁇ E is transmitted to the CAN.
- the main controller 8 generates the surplus power G 1 and the surplus horsepower ⁇ ⁇ are compared, and the smaller value is defined as the allowable power increase ⁇ G, which is the increase in the number of power generation stars allowed by the generator 4. Then, the data of the permissible power generator ⁇ G is transmitted to CA ⁇ . Further, the main controller 8 calculates a power amount (AG + ⁇ ) obtained by adding the allowable discharge increase amount ⁇ to the allowable power generation increase amount ⁇ G, and transmits the data to the CAN. Further, the main controller 8 adds the allowable discharge increase ⁇ ⁇ E to the allowable power increase ⁇ G, and varies in the range of 0 to 1 in proportion to a value obtained by subtracting the surplus horsepower ⁇ H from the added value.
- the main controller 8 multiplies a value obtained by adding the allowable power generation increase ⁇ G and the allowable discharge increase ⁇ ⁇ by a marginal power utilization rate ⁇ , so that the power consumption that can be further increased in the air conditioner 9 is obtained.
- the ratio of the surplus horsepower ⁇ to the value obtained by adding the allowable power increase ⁇ G and the allowable discharge increase ⁇ is large, and if the surplus power utilization rate ⁇ is small, the allowable power increase ⁇ U is When the ratio of the surplus horsepower ⁇ ⁇ ⁇ ⁇ ⁇ is small and the surplus power utilization rate ⁇ is large, the allowable power consumption increase ⁇ U becomes large.
- main controller 8 also transmits the data of the permissible power consumption increase ⁇ to the CAN.
- the air-conditioning control device 28 generates these extra power generations transmitted on CAN.
- Each data of the amount AG1, the surplus horsepower ⁇ , the permissible power increase AG, the permissible discharge increase ⁇ E, the surplus power utilization rate ⁇ , and the permissible power increase ⁇ U is received and used for control as described later.
- the allowable power consumption increase ⁇ U is determined when the power consumption of the air conditioner 9 increases when the air conditioning control device 28 of the air conditioner 9 performs the basic air conditioning operation in the vehicle interior as described above. This is an allowable increase in the power consumption of the air conditioner 9.
- the air conditioning controller 28 of the air conditioner 9 compares the surplus power generation ⁇ G 1 and the surplus horsepower ⁇ ⁇ transmitted on CA ⁇ as described above in step S 1 of FIG. Let the value be the allowable power increase ⁇ G. Then, the power amount ( ⁇ G + m E) is calculated by adding the allowable discharge increase amount ⁇ E to the allowable power increase amount ⁇ G. Next, the air conditioner 28 calculates the allowable power consumption increase amount ⁇ U by multiplying the power amount (AG + ⁇ E) by the marginal power utilization rate ⁇ . Alternatively, main controller 8 receives the above-described allowable power consumption increase ⁇ U calculated as described above.
- step S2 the air-conditioning control device 28 increases the power consumption of the air conditioner 9 required in the future when performing the basic vehicle interior air-conditioning operation as described above. 11 which is an additional amount of power consumption).
- step S3 the air-conditioning control device 28 determines whether or not the power consumption increase amount I is smaller than the allowable power consumption increase amount ⁇ U. Control such as the compressor mode that increases the pressure. On the other hand, if the power consumption increase ⁇ I is equal to or greater than the allowable power consumption increase ⁇ U in step S3, the process proceeds to step S5. The control is executed to increase the power consumption up to the permissible power consumption increase amount AU regardless of the basic cabin air-conditioning operation described above. As control in this case, the operating frequency of the compressor motor 11 or each blower motor is limited to be increased.
- the air-conditioning control device 28 transmits the power consumption increase amount ⁇ to the main control device 8 in step S6.
- Main controller 8 determines whether or not the increase in power consumption ⁇ I received in step S7 is smaller than allowable increase in power generation ⁇ G.If smaller, the process proceeds to step S8, where main controller 8 controls the engine.
- the control data is transmitted to the device 34, and the engine 2 is controlled by the engine control device 34 to increase the power generation amount of the generator 4 by ⁇ I.
- the power consumption increase ⁇ I is equal to or more than the allowable power generation increase A G in step S7, the process proceeds to step S9, and the main control device 8 increases the power generation of the generator 4 by ⁇ G.
- the power consumption of the air conditioner 9 is increased by at least the permissible power consumption increase ⁇ U (if the surplus power utilization rate ⁇ is 1, the permissible power generation increase of the generator 4). ⁇ G plus the allowable discharge increase ⁇ ⁇ of the in-vehicle battery 5). Therefore, the power consumption of the air conditioner 9 including the compressor motor 11 reduces the amount of power stored in the vehicle-mounted battery 5 or causes the inconvenience of running out of the traveling motor 3 and making it impossible to travel due to complete discharge. Can be resolved.
- the power generation amount of the generator 4 is increased within the allowable power generation amount AG according to the power consumption increase amount ⁇ I of the air conditioner 9, so that the air conditioning capability of the air conditioner 9 can be secured as much as possible.
- the increase in power consumption of the air conditioner 9 in this case is due to the increase in the allowable discharge of the on-board battery 5.
- the amount of ⁇ ⁇ is also taken into account, so when the running load of the car 1 is light, such as when the vehicle is stopped or downhill, the on-board battery 5 is discharged within the allowable range to increase the air conditioning capacity of the air conditioner 9 within the allowable range. The maximum increase can be achieved, and more comfortable air conditioning in the vehicle interior can be realized.
- the air-conditioning control device 28 of the air conditioner 9 compares the surplus power generation ⁇ G 1 transmitted on CA ⁇ with the surplus horsepower ⁇ ⁇ as described above in step S10 of FIG. The smaller value is defined as the allowable increase in power generation ⁇ G. Then, the power amount (AG + ⁇ ⁇ ) is calculated by adding the allowable discharge increase amount ⁇ E to the allowable power generation increase amount ⁇ G. Next, the air conditioner 28 calculates the allowable power consumption increase ⁇ ⁇ U by multiplying the power amount (AG + ⁇ E) by the marginal power utilization rate ⁇ . Alternatively, main controller 8 receives the above-described allowable power consumption increase ⁇ U calculated as described above.
- step S 11 the air conditioning control device 28 performs the basic vehicle interior air conditioning operation as described above, and the air conditioner 9 needs to increase power consumption ⁇ I (mostly the compressor motor (The increase in power consumption of 1 1) is calculated.
- the air-conditioning control device 28 determines in step S12 whether or not the power consumption increase ⁇ I is smaller than the allowable power consumption increase ⁇ U. Execute control such as compressor motor 11 to increase power consumption up to. On the other hand, if the power consumption increase ⁇ I is equal to or more than the allowable power consumption ⁇ U in step S12, the process proceeds to step S14, where the permissible power Control to increase power consumption up to the power increase amount ⁇ U is executed. In this case, the control of the compressor motor 11 and each blower motor The operation frequency is restricted from rising.
- the air-conditioning control device 28 transmits the power consumption increase ⁇ I to the main control device 8 in step S15.
- Main controller 8 determines whether or not the increase in power consumption ⁇ I received in step S16 is greater than allowable increase in discharge ⁇ E.If not, control proceeds to step S10. Returning, if it is larger, the process proceeds to step S17, where the main controller 8 transmits data to the engine controller 34, and controls the engine 2 by the engine controller 34 to reduce the amount of power generated by the generator 4.
- the power consumption of the air conditioner 9 is increased by at least the allowable power consumption ⁇ U (when the surplus power utilization rate ⁇ is 1, the allowable power generation of the generator 4 is increased. ⁇ G plus the allowable increase in the discharge of the in-vehicle battery ⁇ ⁇ ⁇ ). Therefore, it is possible to solve the problem that the power storage amount of the vehicle-mounted battery 5 is reduced due to the power consumption of the air conditioner 9 or the driving motor 3 is incompletely discharged and the driving motor 3 is inoperable / impossible to run. Become like
- the increase in power consumption of the air conditioner 9 in this case also takes into account the allowable discharge increase ⁇ ⁇ of the on-board battery 5. Discharge 5 and air conditioner 9 It will be possible to maximize the air-conditioning capacity, and it will be possible to achieve even more comfortable vehicle air-conditioning.
- the increase in the amount of power generation is limited to the amount by which the increase in the power consumption of the air conditioner 9 exceeds the allowable discharge increase, the increase in the energy consumption for the increase in the amount of power generation in the generator 4 is minimized. Is what you can do.
- the main control device 8 controls the engine 2 by the engine control device 34 in step S18 of the flowchart of FIG. 8 so that the power generation amount of the generator 4 initially becomes the initial value P init. I have.
- the main controller 8 determines whether the discharge current value Ie from the vehicle-mounted battery 15 has exceeded the predetermined allowable value Is based on the data transmitted on the CAN as described above in step S19. Judge, and if not, return to step S18. When the discharge current value I e exceeds the allowable value I s as shown in the upper part of FIG.
- step S 9 the main controller 8 proceeds from step S 19 to step S 20 and proceeds to F (I e-(I s — ⁇
- the discharge current value Ie from the vehicle-mounted battery 15 becomes a predetermined return value (Is- ⁇ Ie) lower than the allowable value Is. Calculate the amount of power generated by the simple generator 4.
- step S 21 it is determined whether or not the power generation amount calculated in step S 21 is smaller than the upper limit value P max of the power generation amount that can be generated by the generator 4 (the above-described maximum allowable power) Pmax. Proceeds to step S22, controls the power generation amount of the generator 4 to the value calculated in step S20, and proceeds to step S24. On the other hand, if the amount of power generation calculated in step S21 is equal to or higher than the upper limit Pmax of the amount of power generation of generator 4, main controller 8 proceeds from step S21 to step S23 and proceeds to step S23. Air conditioning control for device 9 The power generation amount of the generator 4 is notified to the device 28 that the upper limit value Pmax has been reached, and the process proceeds to step S24.
- the air-conditioning control device 28 does not increase the power consumption any more or reduces the power consumption regardless of the basic air conditioning operation of the vehicle, as described above. Execute control.
- the power consumption of other electric loads of the automobile 1 may be reduced by the main control device 8 or the like.
- a priority is given to the electric load of the car 1 in advance, and power is supplied from a low-priority load (for example, a load such as an indoor light in the room that does not hinder the driving of the car 1 itself). May be stopped or reduced.
- the power generation amount of the generator 4 also increases initially as shown in the lower part of FIG. The trend will gradually shift to a decreasing trend, but if the power generation amount of the generator 4 is equal to or more than the initial value P init, the process returns to step S 20 and repeats this. Then, when the power generation amount becomes lower than the initial value P init — ⁇ P ( ⁇ P is hysteresis), the main controller 8 returns from step S 24 to step S 18 to reduce the power generation amount of the generator 4. Return to the initial control with the initial value P init.
- the vehicle-mounted battery 5 decreases due to the power consumption of the air conditioner 9 or the traveling motor 3 becomes insufficiently driven and cannot travel due to being completely discharged. become able to.
- the vehicle-mounted battery 5 is discharged to the allowable value Is, the vehicle-mounted battery 5 is discharged within the allowable range and the air-conditioning capacity of the air conditioner 9 is maximally increased under a light running load. To achieve more comfortable passenger compartment air conditioning. become able to.
- the main controller 8 controls the power generation of the generator 4 so that the discharge current value Ie decreases to a return value (Is- ⁇ Ie) lower than the allowable value Is, and also controls the power generation amount. If the battery power drops below the initial value P init, the amount of power generated by the generator 4 is returned to the initial value P init .Therefore, the amount of charge stored in the vehicle battery 5 decreases, or the vehicle battery 5 is completely discharged. While the power generation of the generator 4 is controlled without any trouble.
- the air conditioning control device 28 stops the increase in the power consumption of the air conditioner 9 or executes control to reduce the power consumption. Therefore, while maintaining the air-conditioning capacity of the air conditioner 9 as much as possible, the power consumption of the air conditioner 9 causes the power storage amount of the on-board battery 5 to decrease, or the battery is completely discharged, resulting in poor running and inability to run. The inconvenience can be reliably prevented.
- the air conditioning controller 28 of the air conditioner 9 compares the surplus power generation AG1 transmitted on the CAN with the surplus horsepower ⁇ in step S25 in FIG. 10 as described above. The smaller value is the allowable power increase ⁇ G.
- the main controller 8 receives the allowable power increase ⁇ AG calculated as described above.
- the air conditioning control device 28 calculates an increase in power consumption ⁇ I of the air conditioner 9 that will be required in the future when performing the basic vehicle interior air conditioning operation as described above.
- step S27 the air-conditioning control device 28 determines whether or not the increase in power consumption ⁇ I is smaller than the allowable increase in power generation ⁇ G.
- step S28 control such as compressor mode 11 that increases power consumption up to ⁇ I is performed.
- the flow proceeds to step S29, and the allowable power increase The control of the compressor motor 11 similar to that described above for increasing the power consumption to the amount ⁇ G is executed.
- the air-conditioning control device 28 transmits the power consumption increase amount ⁇ I to the main control device 8 in step S30.
- Main controller 8 determines whether or not the increase in power consumption ⁇ I received in step S31 is smaller than allowable increase in power generation ⁇ G. If smaller, the process proceeds to step S32 and proceeds to engine controller 3 4 Controls the engine 2 to increase the amount of power generated by the generator 4 by ⁇ I. On the other hand, if the power consumption increase ⁇ I is equal to or more than the allowable power generation increase ⁇ G in step S31, the process proceeds to step S33, and the main control device 8 reduces the power generation of the generator 4 by ⁇ G. increase.
- the power consumption of the air conditioner 9 is increased by at least the allowable power increase AG (the smaller of the surplus horsepower ⁇ ⁇ of the surplus power generation AG1 of the generator 4 and the engine 2). ).
- the vehicle-mounted battery 5 is discharged by the power consumption of the air-conditioning apparatus 9 and the amount of stored power in the vehicle-mounted battery 5 is reduced, or the vehicle is completely discharged and the traveling motor 3 becomes unable to travel and cannot travel.
- the amount of power generated by the generator 4 is increased in accordance with the increase in power consumption of the air conditioner 9, so that the air conditioning capacity of the air conditioner 9 can be secured as much as possible, and the air conditioning performance in the vehicle interior is reduced. Can also be prevented or minimized.
- the main controller 8 controls the engine 2 in step S34 of the flowchart of FIG. 11 so that the power generation amount of the generator 4 becomes the initial value P init.
- the main controller 8 determines whether or not the charging current value Ic for the vehicle-mounted battery 5 transmitted on the CAN as described above in step S35 is lower than a predetermined lower limit value Is1. If not, return to step S34.
- the charging current value I c falls below the lower limit value I s 1 as shown in the upper part of FIG.
- step S 35 the main controller 8 proceeds from step S 35 to step S 36 (F (I s 2 ⁇ I c)
- the power generation of the generator 4 such that the charging current value Ic to the vehicle-mounted battery 5 becomes the predetermined return value Is2 higher than the lower limit value Is1 by the feedback calculation of PI by the calculation formula of Calculate the amount.
- step S37 it is determined whether or not the amount of power generation calculated in step S37 is smaller than the upper limit Pmax of the amount of power generation that can be generated by the generator 4, and if it is smaller, the main controller 8 proceeds to step S38. Then, the power generation value of the generator 4 is controlled to the value calculated in step S36, and the process proceeds to step S40. On the other hand, if the amount of power generation calculated in step S36 is equal to or more than the upper limit Pmax of the amount of power generation of generator 4, main controller 8 proceeds from step S37 to step S39 to perform air conditioning. The fact that the power generation amount of the generator 4 has reached the upper limit value Pmax is transmitted to the air conditioning control device 28 of the device 9 and the process proceeds to step S40.
- the air-conditioning control device 28 controls the compressor motor 11 similar to the above, which does not further increase the power consumption or reduces the power consumption, regardless of the basic cabin air-conditioning operation described above. Execute your control. Note that, in this case as well, the power consumption of other electric loads of the vehicle 1 may be reduced by the main controller 8 or the like as in step S23 described above.
- the charging current Ic to the vehicle-mounted battery 5 gradually increases as shown in the upper part of FIG. 12 by such control, the amount of power generated by the generator 4 also initially increases as shown in the lower part of FIG. However, if the number of generated stars of the generator 4 is equal to or more than the initial value P init, the process returns to step S 36 and repeats the above.
- the main controller 8 returns from step S 40 to step S 34, and reduces the power generation amount of the generator 4. Return to the initial control with the initial value P init.
- the power generation amount of the generator 4 is increased from the predetermined initial value Pinit so that the vehicle-mounted battery 5 Charging is secured. This prevents the on-board battery 5 from being charged due to the power consumption of the air conditioner 9, and reduces the amount of charge in the on-board battery 5, or causes the vehicle to run out of running due to insufficient discharge. The inconvenience that falls can be effectively eliminated.
- main controller 8 controls the power generation amount of generator 4 so that charging current value Ic increases to a predetermined return value Is2 higher than lower limit value Is1.
- the amount of power generated by the generator 4 is returned to the initial value P init, so that charging of the vehicle-mounted battery 5 is secured, and the storage location of the vehicle-mounted battery 5 is reduced, or
- the power generation amount of the generator 4 is also controlled without any trouble, while eliminating the inconvenience that the 5 is completely discharged.
- the air conditioning control device 28 stops increasing the power consumption of the air conditioner 9 or executes control to decrease the power consumption. Because of the air conditioner 9 While ensuring the air-conditioning capacity as much as possible, reliably prevent the in-vehicle battery 5 from reducing the amount of stored power due to the power consumption of the air conditioner 9 or running out of running due to insufficient discharge and inability to run. Will be able to do things.
- the air conditioning controller 28 of the air conditioner 9 is also connected to CAN.
- the present invention is not limited to this.
- the air conditioning controller 28 of the air conditioner 9 is connected to CAN.
- the main control device 8 may be connected by a signal line.
- the allowable power consumption increase ⁇ ⁇ U is not calculated by the air-conditioning control device 28, but is used by receiving the value calculated by the main control device 8.
- the present invention has been described with reference to a hybrid vehicle (HEV) as the vehicle 1.
- HEV hybrid vehicle
- FCEV fuel cell vehicle
- the traveling motor 3 is connected to the vehicle-mounted battery via the motor control inverter 3A. 5 to form a motor control system 37, and power generation is performed in a fuel cell (FC) 41.
- FC fuel cell
- the fuel cell 41 is connected to the on-vehicle battery 5, and charging is performed.
- the generated current of the fuel cell 41 is detected by the current transformer CT 4 and input to the fuel cell 41, and the detected current value is also transmitted to the CAN, and the amount of power generated by the fuel cell 41 is Controlled by a command signal from main controller 8 via CAN. Then, the data of the allowable power generation increase ⁇ G in the fuel cell 41 is transmitted from the fuel cell 41 to CAN in the same manner as described above, and the excess horsepower ⁇ ⁇ is obtained by subtracting the current torque from the maximum torque curve of the traveling motor 3. Motor control Sent from the system 37 to CAN. As a result, power control related to the air conditioner 9 can be realized as in the case of the above-described hybrid vehicle.
- FIG. 15 shows an example in which the air-conditioning control device 28 of the air conditioner 9 is not connected to the CAN in FIG. 14 similarly to FIG. 13 described above.
- the inventions other than Claims 13 can be applied to ordinary fuel-engine vehicles as shown in FIG. Also in this figure, the same reference numerals as those in FIGS. 1 to 5 have the same or similar functions.
- the electric power generated by the generator (GEN) 43 driven by the driving fuel engine (internal combustion engine) 42 is charged in the vehicle battery 5 (DC 42 V), and the vehicle battery 5
- the air conditioner 9 is driven by this electric power.
- the fuel engine 42 is controlled by an engine control device 34 connected to the CAN, and the detected value of the current transformer CT 3 is also input to the engine control device 34 so that the amount of power generated by the generator 43 is also obtained. Controlled.
- the surplus power generation amount AG1 of the generator 43 is calculated by the engine control device 34, and the data is transmitted to the CAN. Further, the data of the surplus horsepower ⁇ H is also transmitted from the engine control device 34 to the CAN.
- electric power control related to the air conditioner 9 can be realized as in the case of the above-described hybrid vehicle.
- FIG. 17 shows an example in which the air conditioning controller 28 of the air conditioner 9 is not connected to the CAN in FIG. 16 as in FIGS. 13 and 15 described above. I have. However, in this case, the main control device 8 is not provided, and the engine control device 34 plays the role. Further, the sensor for detecting the accelerator 36 A operating position is provided to the engine control device 34 and the brake. 3 6 B Sensor for detecting operation state and shift lever 3 6 Sensor for detecting shift position of C is transmission controller 4 6 Directly connected to
- reference numeral 46 denotes a transmission control device for controlling the continuously variable transmission 6, which is connected to CAN. Then, when increasing the rotation speed of the fuel engine 42 and increasing the number of power generation stars of the generator 43, the transmission control device 46 executes control for controlling the speed ratio and keeping the vehicle speed constant.
- the smaller of the surplus power generation amount ⁇ G1 and the surplus horsepower ⁇ H is set as the allowable power generation increase amount ⁇ G.
- the present invention is not limited to this, and claims are not limited thereto.
- it is also effective to control the surplus power generation amount ⁇ G 1 as it is to allow the power generation amount ⁇ G.
- the allowable power increase ⁇ G + the allowable discharge increase ⁇ E is multiplied by the surplus power utilization rate ⁇ to calculate the allowable power increase ⁇ I, but the present invention is not limited to this.
- the value of the allowable power generation increase amount ⁇ G + allowable discharge increase amount ⁇ can be directly used as the allowable power consumption increase amount ⁇ I.
- the marginal power utilization rate ⁇ also varies linearly in proportion to the value obtained by subtracting the marginal horsepower ⁇ H from the value obtained by adding the allowable discharge increase ⁇ ⁇ ⁇ to the allowable power increase AG and the curve There are various cases, such as a case in which it is proportional to a factor, and a case in which it fluctuates stepwise.
- the surplus power utilization rate ⁇ in the present invention increases in the range of 0 to 1 by subtracting the surplus horsepower ⁇ ⁇ from the value obtained by adding the allowable discharge increase ⁇ to the allowable power generation increase ⁇ G. The value increases if it decreases, and decreases if it decreases.
- various current values and control signals in the embodiments can be transmitted by various communication methods such as serial communication, parallel communication, analog communication, digital communication, or switch signal, and can be physically wired or wireless. It is. It goes without saying that the present invention can be realized even in a communication system that does not use C A ⁇ .
- the main controller 8 forcibly switches the air circulation in the cabin from the outside air introduction mode to the inside air circulation mode, May be reduced.
- the window may be forcibly closed when the window is open, and in such a case, the passenger is notified of the operation by voice or indicator display, and these controls are manually switched. You may make it invalidable.
- an air conditioner including a power storage means, a power generation means for charging the power storage means, and an electric compressor driven by power supply from the power storage means And a control unit for controlling the operation of the air conditioning unit, the control unit comprising: an allowable power generation increase amount allowed by the power generation unit; On the basis of the permissible increase in discharge allowed by the power storage means, the permissible increase in power consumption in the air conditioning means is calculated by adding the permissible increase in discharge to the permissible power increase.
- the power consumption of the air conditioner is increased within the range of the power increase, and the power generation is increased within the range of the allowable power generation according to the increase of the power consumption of the air conditioner. Since the power generated by the power generation means is increased, the increase in power consumption of the air conditioning means is limited to the allowable power consumption increase that is at least the allowable power increase of the power generation means plus the allowable discharge increase of the power storage means. Will be done.
- the storage stars of the power storage means are reduced due to the power consumption of the air-conditioning means, or the inconvenience of poor running or inability to run due to complete discharge.
- air condition Since the amount of power generated by the power generation means increases within the allowable power generation increase in accordance with the increase in power consumption by the means, the air conditioning capacity of the air conditioning means can be secured as much as possible. In addition, it is possible to prevent or minimize the decrease in air conditioning performance.
- the increase in power consumption of the air-conditioning means also takes into account the increase in the allowable discharge of the power storage means.Therefore, when the running load is light, the power storage means is discharged within the allowable range and the air is discharged. It will be possible to maximize the air conditioning capacity of the harmony means, and it will be possible to achieve more comfortable air conditioning in the passenger compartment.
- the vehicle air-conditioning system includes: a power storage unit; a power generation unit for charging the power storage unit; and an air conditioning unit having an electric compressor driven by power supply from the power storage unit.
- control means for controlling the operation of the air conditioning means comprising: an allowable power generation increase amount permitted by the power generation means; Calculating an allowable power consumption increase in the air-conditioning means by adding the allowable discharge increase amount to the allowable power generation increase amount based on the allowable discharge increase amount permitted by the power storage means;
- the power consumption of the air conditioner is increased within the range of the amount, and the amount of increase in the power consumption of the air conditioner exceeds the allowable discharge increase. Therefore, the increase in power consumption of the air-conditioning means is limited to at least the allowable power consumption increase of the power generation means plus the allowable discharge increase of the power storage means. .
- the increase in power consumption of the air conditioning means exceeds the allowable discharge increase, Since the amount of power generated by the air conditioner is increased, the air conditioning capacity of the air conditioning means can be secured as much as possible, and the deterioration of the air conditioning performance in the vehicle compartment can be prevented or minimized.
- the increase in power consumption of the air-conditioning means also takes into account the increase in the allowable discharge of the power storage means.Therefore, when the running load is light, the power storage means is discharged within the allowable range to achieve air conditioning.
- the vehicle air conditioning system further comprises a driving means for driving the power generation means
- the control means comprises: Since the means is compared with the surplus horsepower that can be further output, and the smaller value is used as the permissible power generation increase amount, the more permissible power generation increase amount that also takes into account the surplus horsepower of the driving means that drives the power generation means is considered. Thus, it is possible to calculate the permissible power consumption increase of the air conditioner from the above, and to execute the control for increasing the power consumption of the air conditioner.
- control means is configured to be in proportion to a value obtained by subtracting the extra horsepower from a value obtained by adding the allowable power generation increase and the allowable discharge increase.
- a surplus power utilization rate that fluctuates in a range from zero to 1 and multiplying the surplus power utilization rate by a value obtained by adding the permissible power generation increase and the permissible discharge increase. Since the increase is calculated, the ratio of the surplus horsepower to the value obtained by adding the allowable power increase and the allowable discharge increase is large, and if the surplus power utilization rate is small, the allowable power increase is small. Conversely, when the ratio of surplus horsepower is small and the surplus power utilization ratio is large, the increase in allowable power consumption is large.
- the vehicle air-conditioning system includes: a power storage unit; a power generation unit for charging the power storage unit; and an air conditioning unit having an electric compressor driven by power supply from the power storage unit. And control means for controlling the operation of the air conditioning means, wherein the control means controls an allowable increase in power generation allowed by the power generation means. Calculating and increasing the power consumption of the air conditioning means within the range of the allowable power generation increase, and increasing the power generation of the power generation means according to the increase in the power consumption of the air conditioning means. The increase in power consumption of the means will be limited at least within the range of the allowable increase in power generation of the power generation means.
- the power storage means is discharged by the power consumption of the air-conditioning means, and the power storage amount of the power storage means is reduced, or the inconvenience of poor running and impossibility of running due to complete discharge can be solved. become able to.
- the amount of power generated by the power generation means is increased in accordance with the increase in the power consumption of the air conditioning means, so that the air conditioning capacity of the air conditioning means can be ensured as much as possible, and the air conditioning performance in the passenger compartment deteriorates. Can be prevented or minimized.
- the vehicle air conditioning system further includes a driving unit that drives the power generation unit.
- the vehicle air-conditioning system includes: a power storage unit; a power generation unit for charging the power storage unit; and an air conditioning unit having an electric compressor driven by power supply from the power storage unit.
- a current detection means for detecting a value of a discharge current from the power storage means, and a control means for controlling power generation by the power generation means. If the discharge current value exceeds a predetermined allowable value based on the discharge current value from the power storage unit, the power generation amount of the power generation unit is increased from a predetermined initial value. As a result, it becomes possible to effectively solve the problem that the amount of power stored in the power storage means is reduced, or the inconvenience that the vehicle runs out of running due to complete discharge and becomes unable to run.
- the power storage means discharges electricity to the allowable value, it is possible to maximize the air-conditioning capacity of the air conditioning means by discharging the power storage means within the allowable range when the running load is light. In addition, comfortable air conditioning in the cabin can be realized.
- control means further controls the power generation amount of the power generation means so that the discharge current value decreases to a predetermined return value lower than the allowable value.
- the control when the power generation amount is lower than the initial value, the power generation amount of the power generation unit is returned to the initial value, so that the power storage amount of the power storage unit is reduced, or the power storage unit is completely discharged. Power generation means while eliminating inconveniences The quantity is also controlled without hindrance.
- the control unit controls the operation of the air conditioning unit, and when the power generation amount of the power generation unit reaches an upper limit value.
- the increase of the power consumption of the air conditioning means is stopped or the control for reducing the power consumption is executed, the power storage by the power consumption of the air conditioning means is performed while securing the air conditioning capacity of the air conditioning means as much as possible. This makes it possible to reliably prevent the inconvenience that the amount of electricity stored in the means is reduced, or the vehicle is completely discharged and the running becomes poor or the vehicle cannot run.
- the vehicle air-conditioning system includes: a power storage unit; a power generation unit for charging the power storage unit; and an air conditioning unit having an electric compressor driven by power supply from the power storage unit.
- a current detecting means for detecting a charging current value to the power storage means, and a control means for controlling power generation by the power generating means, wherein the control means detects the current value detected by the current detecting means.
- the charging current value falls below a predetermined lower limit based on the charging current value to the power storage means, the amount of power generated by the power generation means is increased from a predetermined initial value, so that charging to the power storage means is secured. You. This prevents the power storage unit from being charged due to the power consumption of the air conditioning unit, and reduces the power storage unit's power storage unit, or completely discharges the battery, resulting in poor running and inability to drive. Can be effectively eliminated.
- the control means controls the power generation amount of the power generation means so that the charging current value increases to a predetermined return value higher than the lower limit value.
- the amount of power generated by the power generation unit is returned to the initial value, so that charging of the power storage unit is ensured, and
- the power generation amount of the power generation means can be controlled without any trouble, while eliminating the inconvenience that the power storage amount is reduced or the power storage means is completely discharged.
- the control unit controls the operation of the air conditioning unit, and when the power generation amount of the power generation unit reaches an upper limit value.
- the air conditioning capacity of the air conditioning means is secured as much as possible, This makes it possible to reliably prevent the inconvenience that the amount of power stored in the power storage means is reduced, or the vehicle is completely discharged, resulting in poor running or inability to run.
- the vehicle is an electric vehicle running with a running motor re-supplied by the power storage means. It is possible to effectively eliminate the adverse effects of the operation of the air conditioning means on the running of the electric vehicle while smoothly performing the air conditioning in the passenger compartment.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Air-Conditioning For Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02713199A EP1288032A4 (en) | 2001-03-28 | 2002-03-27 | AIR CONDITIONING SYSTEM OF A VEHICLE |
US10/276,326 US6886356B2 (en) | 2001-03-28 | 2002-03-27 | Car air-conditioning system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001-93899 | 2001-03-28 | ||
JP2001093899A JP2002283838A (ja) | 2001-03-28 | 2001-03-28 | 自動車用空調システム |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002078990A1 true WO2002078990A1 (fr) | 2002-10-10 |
Family
ID=18948178
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2002/002949 WO2002078990A1 (fr) | 2001-03-28 | 2002-03-27 | Systeme d'air conditionne d'un vehicule |
Country Status (5)
Country | Link |
---|---|
US (1) | US6886356B2 (ja) |
EP (1) | EP1288032A4 (ja) |
JP (1) | JP2002283838A (ja) |
KR (1) | KR20030005408A (ja) |
WO (1) | WO2002078990A1 (ja) |
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- 2002-03-27 EP EP02713199A patent/EP1288032A4/en not_active Withdrawn
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Also Published As
Publication number | Publication date |
---|---|
EP1288032A4 (en) | 2005-01-26 |
EP1288032A1 (en) | 2003-03-05 |
US6886356B2 (en) | 2005-05-03 |
US20040025525A1 (en) | 2004-02-12 |
KR20030005408A (ko) | 2003-01-17 |
JP2002283838A (ja) | 2002-10-03 |
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