JP2003237356A - Automotive control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an automotive control system capable of realizing pleasant cabin air conditioning while effectively stopping engine idling. <P>SOLUTION: This automotive control system, used for an automobile 1 equipped with a generator 4 driven by an engine 2 and an on-vehicle battery 5 charged by the generator 4, comprises an air-conditioning means having a motor compressor 10 driven by electric power from the on-vehicle battery, and a main controller 8. The main controller 8 is limited to 80% or less of the operable range of the motor compressor 10. <P>COPYRIGHT: (C)2003,JPO

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention
Driven power generating means, and charged by the power generating means
For vehicles used in vehicles equipped with power storage means
It concerns the control system. 2. Description of the Related Art Conventionally, for example, a hybrid vehicle (HE)
V) drives the compressor of the air conditioner by the engine
Idlin stops the engine when stopped
If you stop the air conditioner, you will not be able to operate the air conditioner.
And it is not always possible to provide a comfortable cabin space.
Was. Therefore, the compressor of the air conditioner is electrically driven.
Stop if the vehicle is driven by an on-board battery
Stop the engine by performing an idling stop during
Even if you let the air conditioner drive, provide a comfortable cabin space
Will be able to do it. [0004] However, when the vehicle is stopped
The electric compressor to the limit of the operable range
When driving, the engine battery is
Is not charged, the amount of discharge from the vehicle battery
Significantly increase. Eventually, the storage capacity of the onboard battery will be
Will be reduced to the specified value.
Is started to charge the vehicle battery.
And [0005] For this reason, when the vehicle is stopped, the amount of exhaust gas is reduced and noise is reduced.
When HEV's original purpose of sound reduction cannot be fulfilled,
In addition, the power generation efficiency during a stop is worse than during
There was a problem that the power generation itself increased as a body. Further, while the engine is stopped, the electric compressor
By driving the sensor to the limit of the operable range,
When the amount of power stored in the on-board battery decreases,
The consumption of the terry itself becomes severe and the life of the vehicle battery
Is shortened. Therefore, the present invention solves such a conventional technical problem.
It was done to solve the problem
Comfortable cabin interior with effective ring stop
To provide an automotive control system capable of air conditioning
With the goal. [0008] That is, the present invention relates to an automobile for use in a vehicle.
The control system is a power generating means driven by the engine
And power storage means charged by the power generation means.
Used in vehicles that have been driven by electricity
Air-conditioning means having an electric compressor to be controlled and control means
And the control means includes an electric compressor when the vehicle is stopped.
The rotation speed of the compressor is set to 8 within the operable range of the electric compressor.
It is characterized by being limited to 0% or less. According to the present invention, the motor driven by the engine
Power generation means, and a storage battery charged by the power generation means
For use in a motor vehicle having steps
With electric compressor driven by power supply from
Air-conditioning means, and a control means.
The rotational speed of the electric compressor in the vehicle is
Since it is limited to 80% or less of the operable range of the presser,
While the engine is stopped, the electric compressor
That the amount of power stored in the power storage
It can be avoided beforehand and can be used to operate the electric compressor.
Power consumption as a whole can be significantly reduced.
I will be able to. In addition, the amount of power stored in the power storage means is significantly reduced.
Can be avoided because idlings
The electric compressor was driven while the top was stopped
In some cases, energy is consumed by the power consumption of the electric compressor.
Prevents or suppresses the inconvenience of starting the engine
It works. As a result, the exhaust gas and noise during
Realize comfortable cabin air conditioning while reducing noise
And reduce power generation as a whole
become able to. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention;
The form will be described in detail. FIG. 1 is a vehicle control system according to the present invention.
FIG. 2 is a configuration diagram of an automobile 1 as an embodiment to which
FIG. 3 is a configuration diagram of a drive system of an automobile 1 according to the present invention.
Air conditioner (AC) constituting a control system for automobiles
9, FIG. 4 is a refrigerant circuit diagram of the air conditioner 9, FIG.
Is a control of the vehicle 1 including the vehicle control system of the present invention.
The system block diagrams are shown respectively. In each of the drawings, a vehicle 1 of the embodiment is a hive.
It is a lid car (HEV).
Gin (internal combustion engine) 2 and air conditioning control constituting control means
The air conditioner 9 including the device 28 is mounted.
The air conditioner 9 cools, heats, and removes the air in the cabin of the automobile 1.
Air conditioning for humidity etc., such as rotary compressor
(Electric compressor) 10 composed of
10A is a condenser 1 as an outdoor heat exchanger.
3 and the outlet side of the condenser 13 is connected to the receiver 17
Have been. The outlet pipe 17A of the liquid receiver 17 is provided with a decompression device.
The expansion valve 18 is connected to the
Connected to an evaporator 19 as an exchanger (cooler).
You. The outlet side of the evaporator 19 is on the suction side of the compressor 10.
An annular refrigeration cycle connected to the pipe 10B (refrigerant
Road) (FIG. 4). In addition, in FIG.
A heater used to heat the cabin
is there. The compressor 10, the condenser 13, and the compressor
Engine 2 etc. are installed outside the passenger compartment where no one
In addition, the evaporator 19 is installed in the passenger compartment where a person gets on.
You. The compressor 10 includes a compressor motor (electric motor).
Motor 11 is provided.
Therefore, the compressor 10 is driven. In the condenser 13
An outdoor blower 15 is provided, and the outdoor blower 15
Is rotationally driven by an outdoor blower motor 16. evaporation
The vessel 19 is provided with an indoor blower 21,
The blower 21 is driven to rotate by an indoor blower motor 22.
It is. On the refrigerant discharge side of the compressor 10,
A temperature sensor 12 for detecting the refrigerant discharge temperature is provided.
The refrigerant outlet side of the condenser 13 detects the refrigerant outlet temperature.
A temperature sensor 14 is provided for the evaporator 1.
9 is a temperature for detecting the refrigerant outlet temperature on the refrigerant outlet side.
Sensors 20 are provided and these are
It is connected. In addition, the air blows into the passenger compartment from the indoor blower 21.
Temperature sensor 23 for detecting the temperature of the discharged air
Is also connected to the air conditioning controller 28. Also, outdoor transfer
Blower motor 16, indoor blower motor 22, air conditioning of vehicle interior
Temperature setting volume 24 provided on operation panel or
The air conditioning switch 25 and the like are also connected to the air conditioning controller 28.
Have been. Here, the air-conditioning control device 28 is moved up and down by a predetermined amount.
The voltage of the vehicle battery (or capacitor.
These also constitute power storage means. BATT) 5 voltage (for example,
For example, step up or step down DC240V) to desired voltage
And the compressor motor 11 by the inverter
And the compressor 10 is rotationally driven.
You. The air-conditioning controller 28 has a compressor.
AUTO that rotates in proportion to the rotation speed of the
In total, the rotational speed of the indoor blower 21 is changed in three stages of 1.2.3.
And manually determine the amount of air blown into the cabin.
Blower fan switch 26 is connected. 2
7 shows the voltage of the battery 5 converted to 12 VDC.
No headlights, turn signals, radio (other negatives in FIG. 5)
And the air-conditioning control device 28 are operated.
This is a converter that generates a power supply (auxiliary power supply). The automobile 1 includes an engine (internal combustion engine) 2
And a traveling motor (an electric motor as traveling driving means).
Ta. 3) and a generator 4 as power generation means are provided.
(The HEV motor control system
), The traveling motor 3 is a motor control invar.
Connected to the vehicle-mounted battery (DC 240 V) 5 via the
The generator 4 is connected to a power generation inverter (IN
V) It is connected to the vehicle-mounted battery 5 via 4A.
The engine 2, traveling motor 3 and generator 4 are not shown.
Torque dividing mechanism is connected, and the torque dividing mechanism is for traveling
Motor 3 and generator 4, and engine 2 and running motor
3 to one, and drive a continuously variable transmission 6 described later.
Move. It should be noted that the traveling motor 3 and the power
Machine 4 and rotation of engine 2 and running motor 3
Of the technology for driving the continuously variable transmission 6 in accordance with
The detailed description is omitted because of this technology. The traveling motor 3 mainly operates on the engine 2.
Used when starting with low heat efficiency, at low speeds
Assist driving even when driving force more than German driving force is required
Used as a power source. And the thermal efficiency of the engine 2
As the vehicle moves to a good high speed, it operates on the engine 2 initiative.
In addition, when the engine 2 is driven, the state of charge of the vehicle-mounted battery 5 is set.
The electric power generated by the generator 4 according to the
Is charged. In addition, the generator 4 is operated while the engine 2 is rotating.
In addition to power generation, it can also be used as a starter when starting the engine 2.
Used. The continuously variable transmission (CVT mechanism (Conti)
nuously VariableTransmississ
ion)) 6 are connected to wheels 7. And d
The engine 2 or the traveling motor 3 is connected via a continuously variable transmission 6.
The vehicle 1 is driven by rotating the wheels 7. The engine 2 or the traveling motor 3
The wheels 7 are rotated by the continuously variable transmission 6 to be driven,
1 is a well-known technology.
Therefore, detailed description is omitted. In FIG. 5, reference numeral 8 denotes an automatic control unit.
The main control unit (VCU) of the car 1
The voltage of the on-board battery 5 (DC240V) is
Step up or down to a predetermined voltage, and
(Motor control inverter 3A)
3 and the driving motor 3 is rotated. The air-conditioning control device 28 includes a compressor
10 drive signals are generated. And the air conditioning control device 2
8 is a compressor based on the induced voltage of the compressor motor 11
The position of the rotor of the motor 11 is detected, and
Inverter that creates the next excitation pattern with a computer
Operating frequency (rotation speed) of compressor motor 11
I will do it. Note that in FIG.
Control device (BATT) for controlling the electric power of
ECU), 34 is a torque command to the engine 2 and the accelerator is opened.
Engine control to control the operation by transmitting degrees
(ENG ECU). 36 is the car 1
Operation of accelerator, brake pedals, shift levers, etc.
It is a rotation operation unit, which detects these operation amounts and operation states
A sensor is connected to main controller 8. Also, this main control
The device 8 operates when the vehicle 1 is in a running state or a stopped state.
It is assumed that a certain situation is detected. Here, the basic operation of the air conditioner 9 is described.
A simple cabin air conditioning operation will be described. compressor
The motor 11 and the outdoor blower motor 16 are connected to the on-board battery 5.
More power. When the air conditioner 9 is operated,
The control device 28 controls the operating frequency of the compressor motor 11
The compressor 10 controls the capacity of the compressor 10. complete
High-temperature and high-pressure gas compressed and discharged by the reservoir 10
The refrigerant flows into the condenser 13 from the pipe 10A. This and
When the outdoor blower 15 blows the condenser 13 out of the vehicle compartment
(See the arrow in FIG. 1). Flow into this condenser 13
The gas refrigerant enters, radiates heat and is condensed and liquefied.
It flows into the liquid container 17. Then, once stored in the receiver 17
The collected liquid refrigerant reaches the expansion valve 18 via the pipe 17A,
After being squeezed here, it flows into the evaporator 19. The refrigerant flowing into the evaporator 19 evaporates there.
Cooling action by absorbing heat from the surroundings at that time
And the cooled air in the cabin is
Is circulated into the passenger compartment by the machine 21 to cool and perform air conditioning.
(Arrows in FIG. 1). The refrigerant leaving the evaporator 19 is
Into a muller (not shown) where the unevaporated refrigerant
After the liquid separation, only the gas refrigerant is sucked into the compressor 10.
And compressed again by the compressor 10 and discharged.
Repeat the refrigeration cycle. Next, the temperature of the air blown into the vehicle interior
(Temperature of air blown into the passenger compartment from indoor blower 21)
Temperature detected by the temperature sensor 23 for detecting the
The operating frequency of the compressor motor 11 and the indoor blower mode
The relationship with the rotation speed of the motor 22 is shown in the following formula. Total
The formula shows the deviation between the outlet temperature of the evaporator 19 and the set temperature.
PI from the deviation (Δe) between (e) and the previous deviation (em)
(Proportional / integral) calculation and the compressor motor 11
Is determined as the target operating frequency (F). Δe = e−em (1) In equation (1), e = (set temperature = temperature set volume)
(Temperature set in the control unit 24) − (outlet temperature = temperature sensor)
The initial value of em: 0)
I have. ΔF = Kp × Δe + Ki × e (2) In equation (2), ΔF: target operation frequency variation calculation
Value, Kp: proportional constant, Ki: integral constant. F = ΔF + Fm (3) In equation (3), Fm represents the previous target operating frequency.
I have. The target operating frequency obtained from the above equation is calculated as follows.
By applying the formula, the applied voltage of the indoor blower motor 22 is set to P
WM control (adjustment of applied voltage), and air volume of indoor blower 21
Make adjustments. PWM duty = (MAX duty−MIN duty) / (MAX frequency−MIN frequency) × (target frequency−MIN frequency) + MIN duty (4) In the equation (4), MAX duty is the indoor blower PWM.
Control maximum duty, MIN duty: indoor blower PWM
Control minimum duty, MAX frequency: Maximum target operation frequency
Value, MIN frequency: Indicates the minimum value of the target operation frequency
You. That is, the air-conditioning control device 28
21 based on the temperature of the air blown into the cabin.
The operating frequency of the compressor motor 11 is determined.
Then, the determined operating frequency of the compressor motor 11
The number of rotations of the indoor blower motor 22 is controlled based on the number.
Like that. That is, the temperature of the air in the cabin
Slightly higher than set temperature set by volume 24
In the case, the operating frequency of the compressor motor 11 and the indoor
Slightly increase the rotation speed of the blower motor 22 (Comp
The power consumption of the lesser motor 11 slightly increases). This
The compressor motor 11 and the indoor blower motor 22
The rotation noise is not extremely loud, it is slightly loud
It only needs to be done. Further, the temperature of the air in the vehicle cabin is changed to a temperature setting volume.
When the temperature is higher than the temperature set in
Is the operating frequency of the compressor motor 11 and the indoor blower
By increasing the rotation speed of the motor 22, air conditioning in the vehicle
To provide comfortable vehicle air conditioning.
(The power consumption of the compressor motor 11 greatly increases
Addition). In particular, the temperature of the air inside the cabin is
If there is no significant change from the set temperature set in 24,
Capacity control by controlling the operation wave number of the compressor motor 11
And a small amount of the indoor blower 21 determined based on the
Comfortable air conditioning can be performed with the air volume control.
Swell. As described above, the air-conditioning control device 28 is an evaporator.
From the difference between the outlet temperature of 19 and the set temperature, the compressor
The inverter 11 controls the operating frequency of the motor 11.
The greater the temperature deviation, the greater the compressor mode
The rotation speed of the motor 11 increases (power consumption is large), and the temperature deviation
If there is no longer, the rotation speed of the compressor motor 11 will be small
Control approaching zero (low power consumption) can be performed. in this case,
The indoor blower motor 22 is also similar to the compressor motor 11.
Control, so that the temperature difference
The air volume can be blown to provide comfortable air conditioning inside the vehicle.
It becomes possible to do. The compressor 5 is supplied from the vehicle-mounted battery 5.
Since power is supplied to the motor 11, the compressor
It is possible to easily control the number of rotations of the
Become. As a result, the rotation speed of the compressor motor 11 is controlled.
Control can be suitably performed. Therefore,
Suitable driving of the impreza 10 can be performed,
It is possible to perform comfortable indoor air conditioning. still,
The operating cycle of the compressor motor 11 required as described above
An upper limit is set for the wave number.
When 100% is set, the limiting operation described later
Be executed. Next, referring to FIG.
Power control related to the air conditioner 9 of the car 1 will be described.
I do. In FIG. 5, CT1 is a charge for the on-board battery 5.
Detects electric current value and discharge current value from vehicle-mounted battery 5
Current transformer as current detecting means
And the charging current detected by the current transformer CT1.
Current value or discharge current value is input to the battery controller 32
Is done. CT2 is a currer for detecting the generated current value of the generator 4.
Current transformer CT2
The generated current value is output to the motor control system 37.
Is entered. CT3 is power generation via the power generation inverter 4A.
This is a current transformer that detects the current value.
The generated current value detected by the
It is input to the roll system 37. CT5 is compression
The current value (consumption) of the air conditioner 9 including the
This is a current transformer that detects the current value.
The current value detected by the transformer CT5 is controlled for air conditioning.
Input to the device 28. In addition, main controller 8 and motor controller
Control system 37, engine control unit 34, battery
The terry control device 32 and the air conditioning control device 28
Connected to a network (hereinafter referred to as CAN)
Data transmission and reception are performed mutually via this CAN.
In addition, the detection current value (discharge current,
Data of charging current and generated current)
Transmission from the stem 37 and the control devices 32 and 28 to the CAN
And can be used mutually by devices connected to CAN.
Have been. The motor control system 37 is
Of the generator 4 detected by the transformers CT2 and CT3.
Based on the generated current value and the number of revolutions of the engine 2, the generator 4
The surplus power generation amount ΔG1 (generator
Maximum power that can be supplied by 4-generated power currently being output
Force). The data of the surplus power generation amount ΔG1
Data on the CAN. The engine control device 34
From the maximum torque curve of gin 2
By subtracting, the engine 2 can output more
The available horsepower ΔH is calculated. And this extra horsepower
The data of ΔH is transmitted on the CAN. The battery control device 32 is a
The integrated value of the discharge current detected by the
Estimate the amount of power stored in the on-board battery 5 from the voltage of the Lee 5
And the discharge current value detected by the current transformer CT1 and the vehicle
Permitted by on-board battery 5 based on amount of stored battery 5
Amount of discharge current (the limit discharge amount of the battery 5−
The allowable discharge increase amount ΔE, which is the current discharge amount, is calculated.
Then, the data of the allowable discharge increase ΔE is stored on the CAN.
Send. The main controller 8 transmits to the CAN in this way.
Compared with the surplus power generation ΔG1 and the surplus horsepower ΔH,
Is the increase in the amount of power generation allowed by the generator 4.
Allowed power generation increase ΔG. And this allowable power increase
The data of the addition ΔG is transmitted on the CAN. Also, the main control
The device 8 adds the allowable discharge increase ΔE to the allowable power increase ΔG.
To calculate the electric energy (ΔG + ΔE),
Send on CAN. Further, the main control device 8 is provided with the allowable power generation.
The allowable discharge increase ΔE is added to the increase ΔG,
0 in proportion to the value obtained by subtracting the surplus horsepower ΔH from the
Calculate the surplus power utilization rate α that fluctuates in the range of 1 to 1
You. This marginal power utilization rate α is equal to the allowable power generation increase ΔG
The ratio of the surplus horsepower ΔH to the value obtained by adding the discharge increase ΔE
If the combination is large, it will be small (approach 0), and conversely
When the ratio of the horsepower ΔH is small, the ratio increases (close to 1).
). And the data of the marginal power utilization rate α is also CA
N. Further, the main controller 8 controls the allowable power generation increase.
To the value obtained by adding the additive amount ΔG and the allowable discharge increase amount ΔE
In the air conditioner 9 by multiplying the usage rate α
Allowable power consumption increase Δ, which is the power consumption that can be further increased
Calculate U. In this case, the allowable power generation increase ΔG and the allowable discharge
The ratio of the surplus horsepower ΔH to the value obtained by adding the
Is large and the marginal power utilization rate α is small,
The power increase ΔU becomes smaller, and conversely, the ratio of the surplus horsepower ΔH becomes
If the power utilization rate α is small,
The force increase ΔU increases. For example, if the horsepower ΔH is 0
If the surplus power utilization rate α is 1, the allowable power generation increase ΔG
The value obtained by adding the allowable discharge increase ΔE is the allowable power increase Δ
It becomes U. Then, main controller 8 increases the allowable power consumption.
The data of the addition ΔU is also transmitted on the CAN. The air-conditioning control device 28 transmits the message to the CAN.
The surplus power generation ΔG1, the surplus horsepower ΔH,
Power increase ΔG, allowable discharge increase ΔE, marginal power utilization rate
α, each data of the allowable power consumption increase ΔU is received, and described later.
It is utilized for such control. Note that the allowable power consumption increase
ΔU is determined by the air-conditioning control device 28 of the air conditioner 9 as described above.
When performing basic cabin air conditioning operations such as
This is allowed when the power consumption of the device 9 increases.
The power consumption of the air conditioner 9 increases. With the above configuration, the actual control operation will be described.
I will tell. The main controller 8 controls the accelerator, the brake and
These operations detected by the driving operation unit such as shift
Depending on the amount and operation status, the vehicle is stopped or running
Recognize. Here, the main control device 8 determines that the vehicle 1 is
If it is recognized that the vehicle is stopped,
Is transmitted to the CAN, and the engine control device 34
Stops the engine 2, and the stopped state is the so-called idling
Stop. Also, the battery control device 32
As described above, the current transformer CT1 transmitted on the CAN is detected.
Charging current value to the on-board battery 5 and the on-board battery
On-board battery calculated from the discharge current value from Lee 5
5 is constantly monitored by feedback.
The compressor motor 1 of the electric compressor 10
As a result of this operation, the amount of stored electricity S decreases and
If the value falls below a predetermined set value Ss, which is the lower limit that can be accommodated
In this case, the engine control device 34 stops idling.
Therefore, control for starting the engine 2 is performed. Engine 2
Generated by the generator 4 by the start of the
-5, and the electric compressor
The compressor motor 11 of the compressor 10 can be driven. Next, in the present invention described above with reference to FIG.
The control operation of the compressor motor 11 will be described. Master system
The control device 8 includes the accelerator, the brake, and the system as described above.
These manipulated variables detected by the driving operation unit
Whether the vehicle is stopped or running, depending on the operation status
And transmits it on the CAN. As described above, the air conditioning control of the air conditioner 9 is performed.
The device 28 is a compressor for the electric compressor 10 in advance.
Holds the upper limit of the operating frequency of the motor
In the running state, the compressor reaches the upper limit of the operating frequency.
The operation of the motor 11 is enabled. And in the stopped state
Is about 100% when the upper limit of the operating frequency is 100%.
Operation of compressor motor 11 up to 80% operating frequency
Is possible. That is, the air conditioning controller 2 of the air conditioner 9
8 is to constantly control the rotation speed of the compressor motor 11 as described above.
While monitoring by feedback, C
The driving state of the vehicle transmitted on the AN, that is, the stopped state
It monitors whether the vehicle is running or running. And
The air conditioning control device 28 controls the compressor in the running state.
The operable range of the motor 11 is up to the maximum rotation speed.
The operation of the compressor motor 11 is allowed. Also, stop
When the engine is idling,
The operable range of the motor 11 is about the maximum rotation speed.
Restricts the operation of compressor motor 11 at 80% rotation speed
I do. FIG. 6 shows an electric compressor of the air conditioner 9.
When the load applied to the
Change in the number of revolutions of the motor 2 and the number of revolutions of the engine 2
FIG. In the figure, the solid line is the electric compressor.
Comp when the load applied to the
It shows a change in the rotation speed of the lesser motor 11.
The dotted line indicates the change in the number of revolutions of the engine 2.
It is. In such a case, the engine 2 is not driven.
When the vehicle is running, the air conditioning controller 28 controls the compressor.
Motor 11 is allowed to operate up to the maximum speed.
It is driven up to the maximum speed. And this
The car 1 is stopped and idling stop is stopped.
When the air conditioner becomes, the air-conditioning control device 28
The allowable rotation speed of the sumomotor 11 is set to about 80 of the maximum rotation speed.
%, The compressor motor 11
Is limited to approximately 80% of the maximum rotational speed
Driven in state. As described above, the air-conditioning control device 28
Compressor Motor of Electric Compressor 10 Inside
The number of rotations of the compressor motor 11 can be changed to 11
Engine 2 shuts down to 80% or less of the range
When the electric compressor 10 is running while the vehicle is stopped
Ahead of a sudden decrease in the amount of charge in the vehicle battery 5
In the operation of the electric compressor 10
In this embodiment, the total amount of power consumption can be reduced to about 60%.
Can be reduced. Also, the storage amount of the vehicle-mounted battery 5 is remarkably large.
Because it is possible to avoid reduction,
Electric compressor 1 during stoppage where ring stop was implemented
0, the electric compressor 10
The inconvenience of starting the engine 2 due to power consumption
It can be prevented or suppressed. As a result, exhaust gas and noise during
Realize comfortable cabin air conditioning while reducing noise
And reduce power generation as a whole
become able to. In the above embodiment, the vehicle 1 is
Engine 2 is used as an assist drive source for traveling
The present invention is explained using a hybrid vehicle (HEV).
As mentioned, the hybrid that uses engine 2 only for power generation
The present invention is also effective for a mobile vehicle (HEV). As described above in detail, the control for a vehicle according to the present invention is carried out.
According to the system, the generator driven by the engine
And a storage means charged by the power generation means.
Used in vehicles that have been
Air conditioner with electric compressor driven by power supply
A step and control means, wherein the control means
The rotation speed of the electric compressor
The engine is limited to 80% or less of the operable range,
While the vehicle is stopped, the operation of the electric compressor
Avoids a significant decrease in the amount of electricity stored in the electricity storage means
The whole and by the operation of the electric compressor
Power consumption can be significantly reduced
Become. Further, the amount of electricity stored in the electricity storage means is significantly reduced.
Can be avoided because idlings
The electric compressor was driven while the top was stopped
In some cases, energy is consumed by the power consumption of the electric compressor.
Prevents or suppresses the inconvenience of starting the engine
It works. As a result, exhaust gas and noise when the vehicle is stopped
Realize comfortable cabin air conditioning while reducing noise
And reduce power generation as a whole
become able to.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a configuration diagram of a hybrid vehicle as an embodiment to which a vehicle control system according to the present invention is applied. FIG. 2 is a configuration diagram of a drive system of the automobile of FIG. FIG. 3 is a configuration diagram of an air conditioner included in the vehicle control system of the present invention. FIG. 4 is a refrigerant circuit diagram of the air conditioner of FIG. 3; FIG. 5 is a block diagram of a control system of a vehicle in which the vehicle control system of the present invention is applied to a hybrid vehicle. FIG. 6 is a diagram illustrating a change in the number of revolutions of an electric compressor and a driving state of an engine by the control system for a vehicle according to the present invention. [Description of Signs] 1 Automobile 2 Engine 3 Running motor 4 Generator 5 In-vehicle battery 8 Main controller 9 Air conditioner 10 Electric compressor 11 Compressor motor 28 Air conditioning controller 32 Battery controller 37 Motor control system 43 Generator

   ────────────────────────────────────────────────── ─── Continuation of front page    (72) Inventor Takashi Sato             2-5-5 Keihanhondori, Moriguchi-shi, Osaka 3             Yo Electric Co., Ltd. (72) Inventor Dai Matsuura             2-5-5 Keihanhondori, Moriguchi-shi, Osaka 3             Yo Electric Co., Ltd. (72) Inventor Kazuya Sato             2-5-5 Keihanhondori, Moriguchi-shi, Osaka 3             Yo Electric Co., Ltd. (72) Inventor Hiroyuki Matsumori             2-5-5 Keihanhondori, Moriguchi-shi, Osaka 3             Yo Electric Co., Ltd. (72) Inventor Takayasu Saito             2-5-5 Keihanhondori, Moriguchi-shi, Osaka 3             Yo Electric Co., Ltd. (72) Inventor Haruhisa Yamazaki             2-5-5 Keihanhondori, Moriguchi-shi, Osaka 3             Yo Electric Co., Ltd. (72) Inventor Masaya Tadano             2-5-5 Keihanhondori, Moriguchi-shi, Osaka 3             Yo Electric Co., Ltd. (72) Inventor Satoru Imai             2-5-5 Keihanhondori, Moriguchi-shi, Osaka 3             Yo Electric Co., Ltd. (72) Inventor Atsushi Oda             2-5-5 Keihanhondori, Moriguchi-shi, Osaka 3             Yo Electric Co., Ltd.

Claims (1)

Claims: 1. An electric compressor used in an automobile having a power generation means driven by an engine and a power storage means charged by the power generation means, wherein the electric compressor is driven by power supply from the power storage means. And a control unit, wherein the control unit sets the number of rotations of the electric compressor during stoppage to 80% of the operable range of the electric compressor.
An automotive control system characterized by the following restrictions: