JP2011037364A - Cooler compressor control device for hybrid car - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide the air conditioner driving device of a hybrid car for suppressing fuel consumption, and for securing the comfortability of the inside of a car since it is considered that there is such a case that the priority of fuel consumption may be lost in comparison with the fuel consumption of a bus on a regular route with a general idle stop device according to how to use an air conditioner in the bus on a regular route of a series type hybrid electric vehicle. <P>SOLUTION: When a cooler compressor, or the like, to be driven by a motor for driving an auxiliary device is driven or stopped, conditions such as the stop and traveling state of a car, door opening/closing, and the temperature of the inside of a car are classified into a plurality of operation modes, and the operation modes are made to be selectively controllable by a changeover switch. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a hybrid vehicle, and more particularly, to a cooler compressor control device that suppresses fuel consumption and ensures comfort in a passenger compartment.

In general, a hybrid vehicle includes an engine that is driven by the combustion of fuel and an electric motor that is operated by electric energy as a power source when the vehicle travels, and a hybrid that uses an engine and an electric motor according to traveling conditions. A car has been proposed.
In this case, when the vehicle is run with the engine stopped under a predetermined running condition, it is proposed that the vehicle is driven by a running motor in order to drive an in-vehicle device such as an air conditioner or an oil pump for a power steering. Yes. The apparatus described in Japanese Patent Laid-Open No. 9-289706 is one example, and usually the compressor of the air conditioner is driven by the engine, and when the engine is stopped, the crankshaft is forced by the motor generator for driving the vehicle. By rotating, the compressor of the air conditioner is driven via a fan belt wound around a pulley attached to the crankshaft, so that the function of the air conditioner and traveling steering is prevented from being lowered. Forcibly rotating requires a large motor torque, consumes a large amount of power, and increases energy consumption.
Therefore, more fuel is consumed by the engine that operates for power generation.

JP-A-9-289706

However, in the series hybrid electric vehicle of the present invention, the generator is driven by the engine mounted on the vehicle, the motor for driving the vehicle is driven by the electric power generated by the generator, and the vehicle travels via the reduction gear. It is carried out. The surplus electric power generated by the power generation is stored in the battery. When the power generation engine stops, the vehicle is driven by the electric power stored in the battery.
Therefore, in the series type hybrid electric vehicle, since the engine is dedicated to driving the generator, the engine is stopped when power generation is not required even during traveling. Therefore, air conditioner cooler compressors that require driving force during travel, air compressors that produce compressed air for use in braking devices, power steering hydraulic pumps that assist steering operations, etc. are driven by auxiliary drive motors. It has a configuration.
As a result, even if the engine is stopped on the route bus of the series hybrid electric vehicle, the air conditioner can be operated by the auxiliary drive motor, and the comfort in the passenger compartment is increased.

On the other hand, in general (non-hybrid electric vehicle) route buses, an air conditioner cooler compressor is driven by an engine, and a fuel consumption is achieved by providing an idle stop device that stops the engine when stopping at a signal or at a stop. Is suppressed.
Therefore, comparing the fuel consumption of the route bus of the series hybrid electric vehicle and the route bus with the idle stop device, it may be considered that the advantage of the fuel consumption of the hybrid vehicle is impaired depending on how the air conditioner is used.

In view of such circumstances, the invention of the present application enables the use of an air conditioner in a hybrid vehicle to be selected from a plurality of operation modes according to the situation of the vehicle, thereby reducing fuel consumption and comfort in the vehicle interior. An object of the present invention is to provide a cooler compressor control device for a hybrid vehicle that ensures the above.

  The present invention achieves such an object, and is driven by an electric generator driven by an engine mounted on a vehicle, an electric storage device that stores electric power generated by the electric generator, and electric power from the electric storage device. Auxiliary motor, cooler compressor driven by the auxiliary motor, vehicle stop detection means for detecting stop of the vehicle, operation mode switching means capable of switching the cooler compressor to an arbitrary operation mode, and the operation Control means for controlling the operation of the cooler compressor based on switching of the mode switching means, and the operation mode switching means includes a first operation mode in which the cooler compressor is always operated, and the vehicle stop detection means to A second operation mode for stopping or limiting the operation of the cooler compressor is set. And wherein the Rukoto.

  According to this invention, by allowing the driver to switch the operation mode of the cooler compressor according to the use environment, the power consumption of the auxiliary motor that drives the cooler compressor is suppressed, and the operation of the engine that drives the generator is controlled. The consumption of fuel and power can be suppressed by reducing the time and power consumption supplied from the battery. As a specific example, the first operation mode is set immediately after the start of traveling of the vehicle, and when the passenger compartment reaches a comfortable temperature, switching to the second operation mode does not impair passenger comfort. , Power consumption can be suppressed.

  Preferably, in the present invention, the hybrid vehicle includes door opening / closing detection means for detecting door opening, the vehicle stop detection means detects the stop of the vehicle, and the door opening / closing detection means opens the door. It may be provided with a third operation mode for stopping or limiting the operation of the cooler compressor when detected.

According to such a configuration, the power consumption can be further suppressed by enabling the operation mode of the cooler compressor to be switched to the third operation mode in accordance with the use environment. In other words, in the case of route buses, doors are opened and closed at each stop, and when there are many passengers, the amount of cold air in the passenger compartment is replaced by outside air, and the cooler stops because the cooler compressor is less effective. To reduce power consumption.
Even in the case of a hybrid passenger car or the like, when the occupant gets on and off, it is possible to obtain the same effect with the configuration of the present application even when a lot of time is required for taking in and out the baggage.

  Preferably, in the present invention, the hybrid vehicle includes temperature detection means for detecting a room temperature of the vehicle, the vehicle stop detection means detects the vehicle stop, and the control means operates the cooler compressor. When the vehicle interior temperature detected by the temperature detection means becomes equal to or higher than a reference temperature when the vehicle is stopped or restricted, the operation of the cooler compressor may be resumed.

  According to this configuration, when the operation of the cooler compressor is restarted when the vehicle interior temperature becomes the reference temperature while the vehicle is stopped and is further higher than the reference temperature, a powerful cooling operation is required, and power consumption is reduced. As a result, the engine operation time may increase, fuel consumption may deteriorate, and the amount of electric power supplied from the battery may increase, so when the cabin temperature exceeds the reference temperature, By resuming the operation, a strong cooling operation is not required, the power consumption is not increased, and as a result, the fuel consumption can be prevented from increasing. Furthermore, the passenger compartment can be maintained at a comfortable temperature.

  According to the cooler compressor control device of the present invention, the driver can switch the operation mode of the cooler compressor in accordance with the use environment while the vehicle is stopped, thereby suppressing power consumption and driving the generator. The fuel consumption can be reduced by reducing the number of operations.

1 shows a schematic system configuration diagram of a series hybrid vehicle according to an embodiment of the present invention. The schematic block diagram of the control apparatus which concerns on embodiment of this invention is shown. The control flowchart which concerns on embodiment of this invention is shown, (A) shows the case where a shift lever position is D (drive), (B) shows the case where a shift lever position is N (neutral).

Embodiments of a schematic system configuration of a series hybrid vehicle according to the present invention will be described below with reference to the drawings.
However, unless otherwise specified, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the present invention, but are merely explanations. Absent.

(First embodiment)
FIG. 1 shows a schematic system configuration diagram of a series hybrid vehicle embodying the present invention.
In the series hybrid vehicle 1, a generator 4 is integrally attached to the engine 2 via a speed increaser 3. The speed is increased in the speed increaser 3 by the driving force of the engine 2, and the generator 4 is efficiently generated. The generated electric power is subjected to AC / DC conversion adjustment of current in the inverter 5, and a part thereof is stored in the battery 6 which is a power storage device. The other part drives a traveling motor 7 that generates driving force for traveling the vehicle. The vehicle 1 is caused to travel by being connected to the traveling motor 7 and decelerating the rotational speed of the traveling motor 7 with the speed reducer 8 and rotating the rear wheel 10 via the differential device 19.

Furthermore, the engine 2 of the series hybrid vehicle is dedicated to the generator drive. For this reason, when the battery 6 is sufficiently charged, the hybrid vehicle 1 has a control of traveling with the engine stopped.
Accordingly, various devices necessary for running the vehicle, that is, a so-called power steering hydraulic pump 15 that generates an assisting force for steering operation, an air compressor for producing compressed air used for operating a brake booster, an air suspension device, and the like. 11. The cooler compressor 13 that compresses the refrigerant of the air conditioner must be driven regardless of whether the engine 2 is operated or stopped.
For this purpose, a dedicated auxiliary motor 9 is separately mounted to drive them.

The auxiliary motor 9 is electrically connected to the inverter 5 and operates by receiving power supplied from the generator 4 or power supplied from the battery 6 via the inverter 5. The auxiliary motor 9 has an output portion formed at both ends of the rotary shaft, a pulley 12 with an electromagnetic clutch is attached to the output shaft A16 at one end, and a pulley attached to the input shaft of the air compressor 11 is driven via a belt. Power is transmitted.
The air compressor 11 pumps and stores compressed air in an air tank (not shown), but when the pressure in the air tank exceeds a certain level, the pulley 12 with an electromagnetic clutch is turned off, and the driving force of the auxiliary motor 9 is turned off. The operation of the air compressor 11 is stopped. Further, when the pressure in the air tank becomes equal to or lower than a certain pressure, the pulley 12 with an electromagnetic clutch is connected, the operation of the air compressor 11 is restarted, and the accumulation of compressed air in the air tank is started.

The other end of the output shaft B17 of the auxiliary motor 9 is connected to the input shaft of the power steering hydraulic pump 15 to the output shaft of the auxiliary motor 9 via a connector (not shown).
Located on the output shaft B17, two pulleys are mounted in the middle of the main body of the auxiliary motor 9 and the power steering hydraulic pump 15 to generate a cooling source for air conditioning in the passenger compartment centering on the output shaft B17. One cooler compressor 13 is arranged on each of the left and right sides. Each of the cooler compressors 13 is provided with a pulley 14 with an electromagnetic clutch, and the pulley 14 with an electromagnetic clutch and the two pulleys on the output shaft B17 side can transmit a driving force via a belt. And the pulley 14 with an electromagnetic clutch is connected / disconnected by the control apparatus 20 mentioned later, the cooler compressor 13 is driven or stopped, and an air-conditioner action | operation is controlled.
In the present embodiment, the two cooler compressors 13 are arranged symmetrically about the output shaft B17, so that the tension generated in the belt by driving the belt acts as a bending moment on the output shaft B17. The bending moment acting force is canceled by attracting from the left and right around the output shaft B17.

FIG. 2 is a schematic configuration diagram of the cooler compressor control device according to the embodiment of the present invention.
21 is an economy switch (hereinafter referred to as economy S / W21) which is an operation mode switching means for the driver to select the operating state of the air conditioner based on the usage environment. The first operation mode (hereinafter referred to as economy OFF mode), the first There are three positions: two driving mode A (hereinafter referred to as economy A mode) and third driving mode B (hereinafter referred to as economy B mode).

In the economy OFF mode, the cooler compressor 13 is always driven regardless of whether the vehicle is stopped or traveling. In the economy A mode, when the vehicle stoppage is detected, the cooler compressor 13 is stopped, or the driving force of the auxiliary motor 9 is limited (decreased) by an instruction from the control device 20 which is a control means, and the operation of the cooler compressor 13 is performed. To reduce the power consumption by the cooler compressor 13. In the economy B mode, the cooler compressor 13 is stopped when the vehicle stops and the door is opened, or the driving force of the auxiliary motor 9 is limited (decreased).
Alternatively, the same effect can be obtained by restricting the strength of the air conditioner to make it stronger to weaker.

The economy B mode detects the stop of the vehicle 1 and detects that the door (not shown) is opened by a door switch 23 (hereinafter referred to as door S / W23) which is a door opening / closing detection means, thereby It is determined that there is a possibility that the vehicle has entered the vehicle interior or that the air in the vehicle interior may have flowed out of the vehicle.
The door S / W 23 is turned on when the door is opened and turned off when the door is closed.
The cooler compressor 13 is stopped, or the driving force of the auxiliary motor 9 is limited (decreased) by an instruction from the control device 20, and the cooling capacity of the cooler compressor 13 is reduced to suppress the power consumption by the cooler compressor 13. To do.
Although the door S / W 22 for detecting the opening / closing of the door is used as a means for detecting the inflow of outside air or the outflow of air in the passenger compartment, it can also be performed by detecting the open / closed state of the window glass. Obtainable.

Reference numeral 22 denotes a vehicle stop detection means, which detects the rotation or stop of the travel motor 7 in this embodiment. When the motor 7 is rotating, the vehicle travel state is detected. to decide.
As another vehicle stop detection means, the output of power from the inverter 5 to the travel motor 7 is checked, and when there is power output, the vehicle travels and when there is no power output, it is detected as the vehicle stop state. It is also possible to do.
There is also a method for detecting the rotation of the wheel.

FIG. 3 shows a control flowchart according to the embodiment of the present invention, where (A) shows the case where the shift lever position is D-drive, and (B) shows the case where the shift lever position is N-neutral.
In step S <b> 1, it is determined based on the operation position of the shift lever of the speed change mechanism whether the driver runs the vehicle 1 or stops the vehicle. When the operation position of the shift lever of the speed change mechanism is operated to the D range (drive range) in step S1, and the driver selects the economy OFF mode in step S2, the auxiliary motor is used in step S3 regardless of whether the vehicle 1 is stopped or traveling. 9 is always driven, and in step S4, the electromagnetic clutch 14 of the cooler compressor 13 is connected by an instruction from the controller 20, and in step S5, the cooler compressor 13 starts operation.
Therefore, even when the vehicle 1 travels with the engine 2 stopped, the air compressor 11 that produces compressed air used for the cooler compressor 13, the hydraulic pump 15 for power steering, and the booster of the brake device is an auxiliary machine. Since it is driven by the motor 9, safe traveling of the vehicle 1 and temperature comfort in the passenger compartment can be ensured.

When the driver selects the economy A mode at step S2, the auxiliary motor 9 is operated at step S6. In step S7, based on the signal from the vehicle stop detection means 22, the vehicle 1 determines whether the vehicle is in a stopped state Y (vehicle speed = 0) or a traveling state N (vehicle speed> 0).
When it is confirmed that the vehicle 1 is in a stopped state, the vehicle 1 is moved to step S8 as a stopped state Y. If the vehicle 1 is in a running state, the process proceeds to step S4, and the cooler compressor 13 continues to operate in step S5.
In step S <b> 8, the pulley 14 with an electromagnetic clutch of the cooler compressor 13 is disconnected based on an instruction from the control device 20. Accordingly, the driving of the cooler compressor 13 is stopped in step S9.
Note that when the pulley 14 with electromagnetic clutch is disconnected, the current to the pulley 14 with electromagnetic clutch is turned off to prevent power consumption (power saving).
Alternatively, the pulley 14 with an electromagnetic clutch of the cooler compressor 13 is contacted and operated according to an instruction from the control device 20 to limit (decrease) the auxiliary motor 9 rotational driving force, and the operation of the cooler compressor 13 is weakened. The power consumption by the compressor 13 may be suppressed.

In step S10, when it is determined that the stop time S of the cooler compressor 13 is shorter than the stop reference time So (stop reference time So> stop time S) (Y), the electromagnetic clutch of the cooler compressor 13 is instructed by an instruction from the control device 20. The attached pulley 14 is kept disconnected, and the process proceeds to step S11.
This is because when the stop time of the cooler compressor 13 is short, the temperature rise in the passenger compartment is small, so that the disengagement operation of the electromagnetic clutch 14 of the cooler compressor 13 is continued to suppress power consumption.
On the other hand, if it is determined in step S10 that the stop time S of the cooler compressor 13 is longer than the reference time So (stop reference time So <stop time S) (N), the process proceeds to step S4, and according to an instruction from the control device 20, The pulley 14 with an electromagnetic clutch of the cooler compressor 13 is operated so as to operate the cooler compressor 13 in step S5.
This is because when the cooler compressor 13 is stopped for a long time, the temperature inside the passenger compartment increases, and when the operation of the cooler compressor 13 is resumed by running the vehicle, a strong cooling operation is required, which increases power consumption. It is what prevents.
General route buses are equipped with an engine idle stop device to save fuel, and the engine stops when there is traffic jam or waiting for a signal, etc., so the cooler compressor stops and the temperature in the passenger compartment rises and becomes uncomfortable. However, according to the control in step S8, that is, when the stop time becomes longer than an arbitrary time, the auxiliary motor 9 can drive the cooler compressor 13 regardless of the operation of the engine 2, so that the comfort in the passenger compartment can be maintained. .

Furthermore, in step S11, when the reference temperature To ≧ Tm in which the vehicle interior temperature Tm detected by the temperature detecting means 24 is set, the driving of the cooler compressor 13 is stopped as Y. Alternatively, the electromagnetic clutch 14 of the cooler compressor 13 is operated in contact with an instruction from the control device 20 to limit (decrease) the rotational driving force of the auxiliary motor 9 and the operation of the cooler compressor 13 is weakened. You may suppress the power consumption by.
Further, if the temperature Tm in the passenger compartment is the reference temperature To ≦ Tm, the process proceeds to step S4, and the pulley 14 with the electromagnetic clutch of the cooler compressor 13 is connected by an instruction from the control device 20 in step S4. In S5, the cooler compressor 13 starts operation.
In this control, when the temperature rise in the passenger compartment increases and the operation of the cooler compressor 13 is resumed by running the vehicle, a strong cooling operation is required, preventing an increase in power consumption.
In step S11, in the present embodiment, the temperature of the passenger compartment is detected and the operation of the cooler compressor 13 is controlled. However, the difference δ between the passenger compartment outside temperature (outside air temperature) and the passenger compartment temperature is arbitrarily set. When the vehicle interior temperature is controlled, the same effect can be obtained by a method of detecting and controlling the vehicle exterior temperature (outside air temperature).

  Further, as the temperature difference between the passenger compartment temperature and the passenger compartment outside temperature increases, the reference temperature To may be reduced to speed up the resumption of the operation of the cooler compressor. If the door is opened as the temperature rises, the room temperature rises due to the outside air in a short time, and restarting the operation of the cooler compressor requires a powerful cooling operation, which increases power consumption. Since the temperature difference from the outdoor temperature increases, the reference temperature To is lowered and the restart of the operation of the cooler compressor is accelerated, thereby requiring a strong cooling operation at the time of restart and preventing an increase in power consumption. be able to.

  Furthermore, when the driver selects the economy B mode, which is the third operation mode, in step S2, steps S15 to S16 are the same as steps S6 to S7 in the economy A mode, and thus description thereof is omitted.

In step S17 in the economy B mode, when it is determined that the door (not shown) is opened based on a signal from the door S / W 23 which is a door opening / closing detection means (Y), in step S8, the cooler compressor 13 is The pulley 14 with an electromagnetic clutch is operated in a disconnected state by an instruction from the control device 20, and further, the drive of the cooler compressor 13 is stopped in step S9 to suppress power consumption.
Therefore, when the door is opened, the cool air inside the passenger compartment and the warm air outside the passenger compartment are interchanged, so that the cooler compressor 13 is forcibly stopped to suppress power consumption.
If the door is closed, the result is N, and the process proceeds to step S4, where the pulley 14 with an electromagnetic clutch of the cooler compressor 13 is connected by an instruction from the control device 20, and in step S5, the cooler compressor 13 starts operation. Driving will resume and maintain comfort in the passenger compartment.
Steps S10 and S11 are the same as those in the economy A mode, and a description thereof will be omitted.

When it is determined that the operation position of the shift lever of the speed change mechanism is the N range (neutral), the control flow for the N range (1) is made in step S1, which will be described with reference to FIG.
In step S <b> 1, it is determined based on the operation position of the shift lever of the speed change mechanism whether the driver runs the vehicle 1 or stops the vehicle. When the operation position of the shift lever of the speed change mechanism is operated to the N range (neutral range) in step S1, and the driver selects the economy OFF mode in step S02, in step S03, the auxiliary motor regardless of whether the vehicle 1 is stopped or traveling. In Step S04, the pulley 14 with an electromagnetic clutch of the cooler compressor 13 is connected by an instruction from the control device 20, and the cooler compressor 13 starts operation in Step S05.
Accordingly, even when the engine 2 is stopped and the vehicle 1 is stopped, the cooler compressor 13, the power steering hydraulic pump 15, the air compressor 11 and the like are driven by the auxiliary motor 9, so that the vehicle 1 can travel safely. The comfort of the temperature in the passenger compartment can be ensured.

When the driver selects the economy A mode in step S02, the auxiliary motor 9 is operated in step S06. In step S7, based on the signal from the vehicle stop detection means 22, the vehicle 1 determines whether the vehicle is in a stopped state Y (vehicle speed = 0) or a traveling state N (vehicle speed> 0). (In case of inertial running of vehicle 1)
When it is confirmed that the vehicle 1 is in a stopped state, the vehicle 1 is moved to step S08 as a stopped state Y. If the vehicle 1 is in the running state N, the process proceeds to step S04, and the cooler compressor 13 continues operation in step S05.

In step S08, the auxiliary motor 9 is stopped by an instruction from the control device 20.
Subsequently, in step S09, the pulley 14 with electromagnetic clutch is controlled to be disconnected, and in step S010, the driving of the cooler compressor 13 is stopped. This is because when the stop time of the vehicle 1 is short, the temperature rise in the passenger compartment is small, so that the electromagnetic clutch 14 of the cooler compressor 13 is disengaged (suppressing power consumption) to suppress power consumption.
Note that the operation of stopping the auxiliary motor 9 in step S08 stops the cooler compressor 13, the power steering hydraulic pump 15, the air compressor 11, and the pulleys 12 and 14 with electromagnetic clutch. The effect of suppressing power consumption is greater than the case.

If it is determined in step S011 that the stop time S of the cooler compressor 13 is shorter than the stop reference time So (stop reference time So> stop time S) (Y), the process proceeds to step S012, and is compensated by an instruction from the control device 20. The machine motor 9 is stopped.
On the other hand, if it is determined that the stop time S of the cooler compressor 13 is longer than the stop reference time So (stop reference time So <stop time S) (N), the process proceeds to step S04, and the cooler compressor 13 continues operation in step S05. .
This is because if the cooling time of the cooler compressor 13 becomes longer and the temperature rise in the passenger compartment increases, a powerful cooling operation is required when the operation of the cooler compressor 13 is resumed due to vehicle travel, resulting in an increase in power consumption. This is to prevent this.
According to the control in step S011, a general route bus is equipped with an engine idle stop device to save fuel, and the engine stops when waiting for a traffic jam signal, etc., so the cooler compressor stops and the temperature in the passenger compartment rises. Although it becomes uncomfortable, the auxiliary motor 9 can drive the cooler compressor 13 regardless of the operation of the engine 2 by this control, so that the comfort in the passenger compartment can be maintained.

Further, in step S012, if the vehicle interior temperature Tm detected by the temperature detecting means 24 is the set reference temperature To> Tm (Y), the drive of the cooler compressor 13 is stopped. Alternatively, the pulley 14 with an electromagnetic clutch of the cooler compressor 13 is brought into contact operation according to an instruction from the control device 20 to limit (decrease) the auxiliary motor 9 rotational driving force, the operation of the cooler compressor 13 is weakened, and the cooler The power consumption by the compressor 13 may be suppressed.
If the vehicle interior temperature Tm is more than the reference temperature To <Tm (N), the process returns to step S03 to operate the auxiliary motor 9 in response to an instruction from the controller 20, and the pulley with an electromagnetic clutch of the cooler compressor 13 14 is connected, and in step S05, the cooler compressor 13 starts operation.
In this control, when the temperature rise in the passenger compartment increases and the operation of the cooler compressor 13 is resumed by running the vehicle, a strong cooling operation is required, preventing an increase in power consumption.

Further, when the driver selects the economy B mode in step S02, the process from step S015 to step S016 is the same as the process from step S06 to step S07 in the economy A mode, and the description thereof is omitted.
If it is determined in step S017 in the economy B mode that the door (not shown) is opened based on a signal from the door S / W 23 which is a door opening / closing detection means (Y), the control device 20 starts in step S08. The auxiliary motor 9 is stopped by the instruction. Subsequently, the pulley 14 with electromagnetic clutch is controlled to be disconnected at step S09, and the cooler compressor 13 is stopped at step S010.
This is because, when the stop time of the vehicle 1 is short, the amount of change between the cool air in the vehicle interior and the warm air outside the vehicle interior is small, so the temperature rise in the vehicle interior is small. In order to suppress power consumption, the electromagnetic clutch 14 of the cooler compressor 13 is controlled to be disconnected (power consumption is suppressed).
On the other hand, if it is determined that the door is closed based on the signal from the door S / W 23 (N), the process proceeds to step S04, and the cooler compressor 13 continues to operate in step S05.
Steps S011 and S012 are the same as those in the economy A mode, and a description thereof will be omitted.

According to the present embodiment, the dedicated auxiliary motor 9 for driving the cooler compressor 13, the power steering hydraulic pump 15, the air compressor 11 and the like is made to correspond to the stop state of the vehicle 1, the change in temperature, the opening and closing of the door, and the like. By controlling the driving of the cooler compressor 13 in a fine manner, the comfort in the passenger compartment is maintained and the consumption of fuel is reduced by reducing the operation of the engine 2 that drives the generator 4 by suppressing the power consumption. Has the effect of reducing.
Further, in the present embodiment, the vehicle interior temperature is detected and the operation of the cooler compressor 13 is controlled. However, when the vehicle interior temperature reaches the reference temperature, the vehicle interior outside temperature detected by the vehicle exterior temperature detecting means is detected. When the temperature becomes higher than the vehicle interior temperature by a certain value or more, the resumption of operation of the cooler compressor may be accelerated.
According to such a configuration, by suppressing the difference between the temperature inside the passenger compartment and the temperature outside the passenger compartment within a certain value, the passenger does not increase the temperature difference between the passenger compartment and outside the passenger compartment when the passenger gets out of the vehicle. Can provide health kindness. Furthermore, when the door is opened in a state where the temperature difference between the vehicle interior and the outdoor air temperature is greater than the reference temperature difference, the vehicle may flow out due to an increase in the amount of outside air flowing into the vehicle interior or the outflow of air into the vehicle interior. If the operation of the cooler compressor is resumed when the room temperature is too high, a strong cooling operation is required, resulting in an increase in power consumption, which may result in an increase in engine operation time and fuel consumption. Therefore, restarting the operation of the cooler compressor when the passenger compartment temperature exceeds the reference temperature does not require powerful cooling operation, does not increase power consumption, and consequently prevents fuel consumption from increasing. it can. Furthermore, the passenger compartment can be maintained at a comfortable temperature.

  In the present invention, the drive control of the cooler compressor is mainly described in the series type hybrid vehicle, but the parallel type hybrid vehicle is also equipped with a motor for driving an accessory driving motor, a power steering hydraulic pump, an air compressor, and the like. If it is a vehicle, it is possible to obtain the same effect as this application.

DESCRIPTION OF SYMBOLS 1 Vehicle 2 Engine 4 Generator 5 Inverter 6 Battery 9 Auxiliary motor 11 Air compressor 12, 14 Pulley with electromagnetic clutch 13 Cooler compressor 15 Hydraulic pump for power steering 20 Control device (control means)
21 Economy S / W
22 Vehicle stop detection means 23 Door S / W
24 Temperature detection means

Claims (3)

  A generator driven by an engine mounted on a vehicle, a power storage device that stores power generated by the power generator, an auxiliary motor driven by power from the power storage device, and driven by the auxiliary motor A cooler compressor, a vehicle stop detection means for detecting stop of the vehicle, an operation mode switching means capable of switching the cooler compressor to an arbitrary operation mode, and the cooler compressor based on switching of the operation mode switching means. Control means for controlling the operation of the air conditioner, wherein the operation mode switching means includes a first operation mode in which the cooler compressor is always operated, and when the vehicle stop detection means detects that the vehicle has stopped, A hybrid vehicle characterized in that a second operation mode for stopping or restricting operation is set Cooler compressor control device.   The hybrid vehicle includes door opening / closing detection means for detecting opening / closing of the door, and when the vehicle stop detection is detected by the vehicle stop detection means and when the door opening / closing detection is detected by the door opening / closing detection means, The cooler compressor control device for a hybrid vehicle according to claim 1, further comprising a third operation mode for stopping or restricting the operation.   The hybrid vehicle includes an indoor temperature detecting means for detecting an indoor air temperature of the vehicle. When the vehicle stop detection is detected by the vehicle stop detecting means and the operation of the cooler compressor is stopped or restricted by the control means. 3. The cooler compressor control device for a hybrid vehicle according to claim 1 or 2, wherein the operation of the cooler compressor is resumed when the vehicle interior temperature becomes equal to or higher than a reference temperature.

Images