JP2019214219A - Cooperative control method of driving force control and air conditioning control and cooperative control device - Google Patents

Abstract

To secure environment visibility due to window clearing in a scene where window clearing demand exists while securing power performance in a scene where the window clearing demand does not exist.SOLUTION: A cooperative control method of driving force control and air conditioning control comprises a cooperative controller 46 which performs cooperative control of driving force control of an engine 11 (driving source for traveling) and air conditioning control of an air conditioning system 2 which includes a compressor 21 driven by the engine 11 directly or indirectly. Then, the cooperative control method of the driving force control and the air conditioning control performs procedures mentioned below. It determines whether not or acceleration request exists. It also determines whether not or the window clearing demand of a front window 28 exists. It executes the air conditioning control which gives priority to the power performance on the basis of the acceleration request if the window clearing demand does not exist. It executes the air conditioning control which gives priority to the window clearing performance for the window clearing demand rather than the power performance on the basis of the acceleration request if the window clearing demand exists.SELECTED DRAWING: Figure 4

Description

  The present disclosure relates to a cooperative control method and a cooperative control device for driving force control and air conditioning control.

  BACKGROUND ART Conventionally, there has been known a compressor temporary stop device of a vehicle air conditioner that temporarily stops operation of a compressor when it is detected that a throttle valve of an engine is in a fully open state (for example, see Patent Document 1).

JP-A-56-79645

  In the conventional device, when the accelerator pedal is depressed by a predetermined opening degree or more during operation of the air conditioner, the operation of the compressor is temporarily stopped, so that the engine load is reduced and the driving force by the engine output is increased. However, if the load of the air conditioner is continuously reduced (the air conditioner is turned off) with the priority on the power performance, the temperature of the evaporator gradually increases, the dehumidifying capacity is reduced, and the front window is fogged. In addition, when the occupant requests a window clearing operation by turning on the front defroster switch, there is a problem that if the air conditioner is turned off with priority on the power performance, it is not possible to remove the fogging of the window.

  The present disclosure has been made by paying attention to the above-described problem, and has as its object to secure external performance due to window clearing in a scene having a window clearing request while securing power performance in a scene without a window clearing request. .

In order to achieve the above object, the present disclosure provides a controller that performs cooperative control of driving force control of a driving source for traveling and air conditioning control of an air conditioning system having a compressor driven directly or indirectly by the driving source for traveling. Is provided. Then, a cooperative control method of the driving force control and the air conditioning control according to the following procedure is adopted.
It is determined whether there is an acceleration request.
It is determined whether there is a request for clearing the front window.
When there is no window clearing request, the air conditioning control which gives priority to the power performance based on the acceleration request is performed.
If there is a window clearing request, air conditioning control is performed to prioritize window clearing performance for a window clearing request over power performance based on an acceleration request.

  As described above, when there is a window clearing request for the front window, air conditioning control is performed in which window clearing performance is prioritized over power performance. As a result, it is possible to secure the external performance due to the window clear in the scene where the window clear is required, while securing the power performance in the scene where the window clear is not required.

1 is an overall system diagram illustrating an engine vehicle to which a cooperative control method and a cooperative control device for driving force control and air conditioning control according to a first embodiment are applied. FIG. 2 is a block diagram illustrating a configuration of a cooperative controller included in an engine control module. 6 is a flowchart illustrating a flow of a cooperative control process between an engine driving force control and an air conditioning control executed by a cooperative controller included in the engine control module. 6 is a time chart showing the presence or absence of an air conditioner cut command in a scene where the presence or absence of an acceleration request and the presence or absence of a window clearing request are variously combined.

  Hereinafter, an embodiment for implementing a cooperative control method and a cooperative control device of driving force control and air conditioning control according to the present disclosure will be described based on a first embodiment illustrated in the drawings.

  The cooperative control method and the cooperative control device of the driving force control and the air conditioning control according to the first embodiment are applied to an engine vehicle equipped with an air conditioner system having a compressor directly driven by an engine mounted as a driving source for traveling. It is. Hereinafter, the configuration of the first embodiment will be described by dividing it into “the overall system configuration”, “the configuration of the cooperative controller”, and “the cooperative control processing configuration of the engine driving force control and the air conditioning control”.

[Overall system configuration]
FIG. 1 shows an overall system configuration including an in-vehicle air conditioner system to which a cooperative control method of a driving force control and an air conditioning control and a cooperative control device according to a first embodiment are applied. Hereinafter, the overall system configuration will be described with reference to FIG. 1 separately for an engine vehicle drive system 1, an air conditioner system 2, a drive transmission mechanism 3, an engine control system 4, and an air conditioner control system 5.

  As shown in FIG. 1, the engine vehicle drive system 1 includes an engine 11 (drive source for traveling), a torque converter 12, a continuously variable transmission 13, and a final drive 14. Further, a left drive shaft 15L, a right drive shaft 15R, a left drive wheel 16L, and a right drive wheel 16R are provided.

  That is, the driving force from the engine 11 is transmitted to the final drive 14 via the torque converter 12 and the continuously variable transmission 13. The driving force is transmitted from the final drive 14 to the left driving wheel 16L via the left drive shaft 15L, and the driving force is transmitted to the right driving wheel 16R via the right drive shaft 15R.

  In the air conditioner system 2, a refrigeration cycle for circulating a refrigerant includes a compressor 21, a condenser 22, a receiver 23, an expansion valve 24, and an evaporator 25. The air conditioner system 2 includes a condenser fan 26 and a blower fan 27 in addition to the components of the refrigeration cycle.

  The compressor 21 is a compressor directly driven by the engine 11. The refrigerant (air conditioner gas) compressed by the compressor 21 enters the condenser 22 in a semi-liquid state at high temperature and high pressure.

  The condenser 22 is a condenser arranged at a front part of the vehicle or the like where the traveling wind is introduced together with the condenser fan 26. The refrigerant that has entered the condenser 22 from the compressor 21 is cooled by the wind of the condenser fan 26, further liquefied, and sent to the receiver 23.

  The receiver 23 is a refrigerant gas-liquid separator disposed immediately after the outlet of the condenser 22. The receiver 23 separates the refrigerant that cannot be liquefied from the refrigerant liquefied from the condenser 22 as a liquid refrigerant. The receiver 23 has a function of removing moisture and impurities from the refrigerant by using a desiccant or a strainer, in addition to the gas-liquid separation function.

  The expansion valve 24 is a refrigerant expansion valve arranged at an inlet position of the evaporator 25. In the expansion valve 24, the liquid refrigerant from the receiver 23 is expanded by injecting it from a minute nozzle hole to vaporize the refrigerant at a stretch and send the vaporized refrigerant to the evaporator 25.

  The evaporator 25 is an evaporator provided together with the blower fan 27 in the air conditioning unit case. In the evaporator 25, the vaporized refrigerant sent from the expansion valve 10 takes away surrounding heat, and thereby cools the evaporator 25. The wind of the blower fan 27 is passed there to generate cool air. Then, the refrigerant flowing out of the evaporator 25 returns to the compressor 21 again and is compressed.

  Here, the receiver 23, the expansion valve 24, the evaporator 25, and the blower fan 27 are provided in an air-conditioning unit case arranged in a vehicle space sandwiched by a dash panel and an instrument panel (not shown). Therefore, the moisture in the air in the vehicle cabin is condensed on the cold surface of the evaporator 25 to become water droplets, and is discharged outside the vehicle. Thereby, dehumidification is performed. A heating unit such as a heat exchanger or a PTC heater through which engine cooling water flows is provided in the air conditioning unit case.

  The drive transmission mechanism 3 is a mechanism that switches between a drive transmission state and a drive cutoff state between the engine 11 and the compressor 21. The drive transmission mechanism 3 includes a first pulley 32 provided on an engine crankshaft 31, a second pulley 34 provided on a compressor drive shaft 33, and a belt 35 stretched over both pulleys 32, 34. You. Further, an electromagnetic clutch 36 is interposed between the compressor drive shaft 33 and the second pulley 34.

  That is, when the electromagnetic clutch 36 is turned on (clutch engagement), the engine 11 and the compressor 21 are connected in a drive transmission state. On the other hand, when the electromagnetic clutch 36 is turned off (clutch disengagement), the engine 11 and the compressor 21 are disconnected from each other in a drive cutoff state.

  The engine control system 4 includes an engine control module 41, a vehicle speed sensor 42, an accelerator opening sensor 43, an engine crank angle sensor 44, and a fuel injection actuator 45.

  The engine driving force control executed by the engine control module 41 calculates a target driving force based on the vehicle speed VSP from the vehicle speed sensor 42 and the accelerator opening APO from the accelerator opening sensor 43. Then, the target driving force is converted into a target engine speed using an engine performance map, and fuel is injected into the fuel injection actuator 45 so that the actual engine speed from the engine crank angle sensor 44 matches the target engine speed. This is done by outputting a command.

The air conditioner control system 5 includes an HVAC control module 51, a clutch driver 52, an air conditioner ON / OFF switch 53, an auto switch 54, a mode switch 55, and a front defroster switch 56. In addition, an inside / outside air changeover switch 57, an air volume adjustment switch 58, a temperature adjustment switch 59, and the like are provided.
“HVAC” is an abbreviation for “Heating Ventilation and Air Conditioning”.

  The HVAC control module 51 receives various switch signals and sensor signals, and performs air-conditioning control by ON / OFF control of the compressor 21, air volume control, door opening / closing control, outlet selection control, and the like. The HVAC control module 51 and the engine control module 41 are connected so that information can be exchanged. Then, the HVAC control module 51 outputs various information such as an ON request of the electromagnetic clutch 36 and a driving force control permission signal of the engine 11 to the engine control module 41.

  The clutch driver 52 is a drive circuit of the electromagnetic clutch 36 that performs ON / OFF control of the compressor 21. When the clutch driver 52 inputs a request to turn on the compressor 21 from the HVAC control module 51, the electromagnetic clutch 36 is turned on to connect the engine 11 and the compressor 21 in a drive transmission state. On the other hand, when the clutch driver 52 inputs a request to turn off the compressor 21 from the HVAC control module 51, the electromagnetic clutch 36 is turned off, and the engine 11 and the compressor 21 are disconnected in a drive cutoff state.

  In addition to the request from the HVAC control module 51, the clutch driver 52 receives an ON / OFF request from the cooperative controller 46 included in the engine control module 41. At this time, if there is an ON / OFF request from the cooperative controller 46 based on at least one of the acceleration request and the window clearing request, the ON / OFF request from the HVAC control module 51 is accepted in priority.

  The air conditioner ON / OFF switch 53 is a switch for switching between an air conditioner ON for starting / operating the air conditioning control and an air conditioner OFF for ending the air conditioning control.

  The auto switch 54 is a switch for switching to automatic air conditioning control. When the automatic switch 54 is turned on and automatic air-conditioning control is selected, switching between cooling and heating, air outlet, air volume, and switching between inside air circulation and outside air introduction are automatically adjusted, and control for maintaining the vehicle interior temperature at the set temperature is performed. .

  The mode switch 55 is a switch that switches the outlet according to a vent mode, a foot mode, a defroster mode, or the like selected by an occupant operation.

  The front defroster switch 56 is a switch for selecting a defroster mode by an occupant operation. When the defroster mode is selected, a blowout opening set toward the front window 28 is opened on the upper surface of the instrument panel, and, for example, dehumidified conditioned air is blown on the front window 28 to remove fogging on the inner surface of the window.

[Configuration of cooperative controller]
FIG. 2 shows a configuration of the cooperative controller 46 included in the engine control module 41. Hereinafter, the configuration of the cooperative controller 46 will be described based on FIG.

  As shown in FIG. 2, the cooperative controller 46 includes an acceleration request determination unit 46a, an air conditioner OFF time calculation unit 46b, a cut time timer function unit 46c, a window clear request determination unit 46d, and an execution determination unit 46e. Have. The cooperative controller 46 has an acceleration air-conditioner OFF function (acceleration air-conditioning stop function) for stopping the compressor 21 and securing power performance when there is an acceleration request. That is, when there is an acceleration request, the engine 11 and the compressor 21 are separated to suppress the compressor load of the engine 11 and increase the marginal driving force of the engine 11 corresponding to the compressor load to respond to the acceleration request.

The acceleration request determining unit 46a receives the accelerator opening APO and the vehicle speed VSP and determines whether or not there is an acceleration request. For example, in the following case, it is determined that there is an acceleration request.
(a) If the accelerator opening APO due to the accelerator pedal depressing operation by the driver is equal to or greater than an acceleration request determination threshold (for example, APO ≧ 3/8 opening), it is determined that an acceleration request (driver request) is present.
(b) It is determined that there is an acceleration request (system request) when there is an acceleration request in which the accelerator opening APO is equal to or greater than the acceleration request determination threshold value in the preceding vehicle following control, the automatic driving control, or the like.

  The acceleration request determination threshold may be changed according to the magnitude of the traveling load (the higher the traveling load, the higher the accelerator opening). Furthermore, it may be changed according to the level of the vehicle speed VSP (higher accelerator opening during traveling than when starting).

  The air conditioner OFF time calculator 46b receives the accelerator opening APO and the vehicle speed VSP and calculates the air conditioner OFF time. For the air conditioner OFF time, for example, the target vehicle speed after acceleration is calculated according to the magnitude of the acceleration request estimated from the accelerator operation amount or the accelerator operation amount, and the current vehicle speed VSP reaches the target vehicle speed. Calculate the estimated time required for waxing. That is, the longer the vehicle speed VSP is, the longer the air-conditioner OFF time is calculated. For example, it takes time to overtake the vehicle during acceleration at a high vehicle speed.

  The cut time timer function unit 46c, when receiving the determination result indicating that there is an acceleration request from the acceleration request determination unit 46a, determines whether to execute the cut request (air conditioner OFF request) using the air conditioner OFF time from the air conditioner OFF time calculation unit 46b as the timer time. Output to the unit 46e.

The window clear request determination unit 46d determines whether there is a window clear request for the front window 28. For example, in the following case, it is determined that there is a window clearing request.
(a) When the air-conditioning mode by the air-conditioning system 2 is manually selected, it is determined that a window clearing request (driver request) is present if the front defroster switch 56, which is a switch for selecting an air-conditioning mode for requesting window clearing, is on.
(b) When the air conditioning mode by the air conditioning system 2 is manually selected, if the mode switch 55 selects the defroster mode (the air conditioning mode requiring window clearing), it is determined that there is a window clearing request (driver request).
(c) When automatically selecting the air conditioning mode by the air conditioner system 2 by turning on the auto switch 54, when selection information of the defroster mode (air conditioning mode for requesting window clearing) is input, it is determined that there is a window clearing request (system request). .

  The execution determination unit 46e receives the cut request from the cut time timer function unit 46c and the determination result from the window clear request determination unit 46d, and performs the air conditioning control that prioritizes the power performance based on the acceleration request when there is no window clear request. carry out. On the other hand, when there is a window clearing request, the air conditioning control that gives priority to the window clearing performance for the window clearing request over the power performance based on the acceleration request is performed. More specifically, when there is an acceleration request and no window clearing request, the air conditioner OFF function during acceleration is permitted (output of the air conditioner OFF request), and the compressor 21 is stopped to give priority to the power performance. On the other hand, when there is an acceleration request and a window clearing request, the acceleration air conditioner OFF function is prohibited (output of an air conditioner ON request), and the compressor 21 is driven to give priority to the window clearing performance.

[Cooperative control processing configuration of engine driving force control and air conditioning control]
FIG. 3 shows a flow of a cooperative control process between the engine driving force control and the air conditioning control executed by the cooperative controller 46 included in the engine control module 41. Hereinafter, each step of FIG. 3 will be described.

  In step S1, the acceleration request determination unit 46a determines whether there is an acceleration request. If YES (acceleration request is present), the process proceeds to step S3, and if NO (no acceleration request), the process proceeds to step S2.

  In step S2, following the determination in step S1 that there is no acceleration request, the acceleration air conditioner OFF function is prohibited, and the routine proceeds to return.

  In step S3, following the determination that there is an acceleration request in step S1, the window clear request determining unit 46d determines whether there is a window clear request. In the case of YES (there is a window clear request), the process proceeds to step S4, and in the case of NO (there is no window clear request), the process proceeds to step S5.

  In step S4, following the determination in step S3 that there is a window clear request, the air conditioner OFF function during acceleration is prohibited, and the routine proceeds to return.

  In step S5, following the determination that there is no window clearing request in step S3, the acceleration air conditioner OFF function is permitted, and the routine proceeds to return.

  Next, the operation of the first embodiment will be described separately for “cooperative control processing operation of engine driving force control and air conditioning control” and “cooperative control operation of engine driving force control and air conditioning control”.

[Cooperative control processing between engine driving force control and air conditioning control]
When there is no acceleration request, the flow of S1 → S2 → return is repeated in the flowchart of FIG. In S2, the air conditioner OFF function during acceleration is prohibited. As described above, when there is no acceleration request, the air conditioner OFF function during acceleration is prohibited, and the ON / OFF control of the compressor 21 is performed according to the ON / OFF request from the HVAC control module 51.

  When there is an acceleration request and there is no window clearing request, the flow of S1, S3, S5, and return in the flowchart of FIG. 3 is repeated. In S5, the acceleration air conditioner OFF function is permitted. As described above, when there is an acceleration request and there is no window clearing request, since there is an acceleration request, control to stop the compressor 21 in accordance with the air conditioner OFF request from the cooperative controller 46 is performed. That is, the cooperative control between the engine driving force control and the air conditioning control with the priority on the power performance is performed.

  On the other hand, when there is an acceleration request and a window clearing request, the flow of S1 → S3 → S4 → return is repeated in the flowchart of FIG. In S4, the air conditioner OFF function during acceleration is prohibited. As described above, when there is an acceleration request and a window clearing request, control is performed to operate the compressor 21 in accordance with the air conditioner ON request from the cooperative controller 46 despite the acceleration request. That is, the cooperative control of the engine driving force control and the air conditioning control with the priority on the window clearing performance is performed.

[Cooperative control action between engine driving force control and air conditioning control]
If there is a request for acceleration, a comparative example will be described in which the compressor is stopped and the function of turning off the air conditioner at the time of acceleration, which secures the power performance, regardless of whether there is a request for clearing the window.

  In the case of this comparative example, for example, when the accelerator pedal is depressed by a predetermined value or more during the operation of the air conditioner, the engine performance is reduced by stopping the compressor of the air conditioner system, and the cooperative control of the power performance to increase the driving force is performed. Done.

  However, if cooperative control with priority on power performance is performed and the engine load is reduced by continuing to stop the compressor, the temperature of the evaporator gradually increases, the dehumidification capacity decreases, and fogging occurs on the front window. I will. At this time, even if the passenger turns on the front defroster switch and requests a window clearing, if the air conditioner system is turned off with priority on the power performance, it is not possible to remove the fogging of the front window.

  If the fogging of the front window is not removed, the visibility of the outside world in front of the vehicle is impaired, which impairs driving. Further, in the case of a vehicle equipped with a front camera that images the front of the vehicle, image data from the front camera becomes unclear.

  Furthermore, in order to satisfy the window clearing performance with respect to the window clearing requirement, it is necessary that the air conditioner system be ON. On the other hand, with regard to the power performance, for example, if the engine has a sufficient driving force even when the air conditioner system is ON, the power performance can be satisfied with respect to the acceleration request by increasing the accelerator depression. Therefore, when comparing the power performance and the window clearing performance, it is advantageous to give priority to the window clearing performance.

  The present invention has been made in view of the above-mentioned problem and the point that it is advantageous to prioritize window clearing performance. That is, in the cooperative control between the engine driving force control and the air conditioning control, when there is no window clearing request, the air conditioning control that gives priority to the power performance based on the acceleration request is performed. When there is a window clearing request, a means for performing air-conditioning control that prioritizes window clearing performance for a window clearing request over power performance based on an acceleration request is employed.

  Here, an example of a cooperative control operation between the engine driving force control and the air conditioning control will be described with reference to a time chart shown in FIG.

  In the section between time t1 and time t2, there is an acceleration request and no window clearing request. Therefore, in the section between time t1 and time t2, there is a cut command from the cooperative controller 46 to disconnect the electromagnetic clutch 36. Therefore, the electromagnetic clutch 36 is disconnected, and the power performance based on the acceleration request has priority.

  In the section between time t2 and time t3, there is no acceleration request and no window clearing request. Therefore, in the section between time t2 and time t3, there is no cut command from the cooperative controller 46 to disconnect the electromagnetic clutch 36. Therefore, ON / OFF of the electromagnetic clutch 36 is left to a request from the HVAC control module 51.

  In the section between time t3 and time t4, there is no acceleration request and there is a window clearing request. Therefore, in the section between time t3 and time t4, there is no cut command from the cooperative controller 46 to disconnect the electromagnetic clutch 36. Therefore, the electromagnetic clutch 36 is engaged in response to an ON request from the HVAC control module 51, and air conditioning control in response to a window clearing request in the defroster mode is performed.

  In the section between time t4 and time t5, there is an acceleration request and a window clearing request. As described above, in the section between time t4 and time t5, although there is an acceleration request, but there is a window clearing request, there is no cut command from the cooperative controller 46 to disconnect the electromagnetic clutch 36. Therefore, the electromagnetic clutch 36 is engaged in response to an ON request from the HVAC control module 51, air conditioning control is performed in response to the window clearing request in the defroster mode, and the window clearing performance based on the window clearing request has priority over the power performance.

  In the section between time t5 and time t6, there is no acceleration request and there is a window clearing request. Therefore, in the section between time t5 and time t6, there is no cut command from the cooperative controller 46 to disconnect the electromagnetic clutch 36. Therefore, the electromagnetic clutch 36 is engaged in response to an ON request from the HVAC control module 51, and air conditioning control in response to a window clearing request in the defroster mode is performed.

  In the section between time t6 and time t7, there is an acceleration request and a window clearing request. As described above, in the section between time t6 and time t7, although there is an acceleration request, but a window clearing request, there is no cut command from the cooperative controller 46 to disconnect the electromagnetic clutch 36. Therefore, the electromagnetic clutch 36 is engaged in response to an ON request from the HVAC control module 51, air conditioning control is performed in response to the window clearing request in the defroster mode, and the window clearing performance based on the window clearing request has priority over the power performance.

  In the section between time t7 and time t8, there is an acceleration request and no window clearing request. Therefore, in the section between time t7 and time t8, there is a cut command from the cooperative controller 46 to disconnect the electromagnetic clutch 36. Therefore, the electromagnetic clutch 36 is disconnected, and the power performance based on the acceleration request has priority.

  In the section after time t8, there is no acceleration request and no window clearing request. Therefore, in the section after the time t8, there is no cut command from the cooperative controller 46 to disconnect the electromagnetic clutch 36. Therefore, ON / OFF of the electromagnetic clutch 36 is left to a request from the HVAC control module 51.

  As described above, when there is no window clearing request, the air-conditioning control that gives priority to the power performance based on the acceleration request is performed, and when there is the acceleration request, the electromagnetic clutch 36 is disconnected and the control that gives priority to the power performance is performed. (T1-t2 interval, t7-t8 interval). Therefore, the compressor load shared by the engine 11 is reduced, and the power performance that meets the acceleration request is secured by the engine marginal driving force corresponding to the reduced compressor load.

  On the other hand, if there is a window clearing request for the front window 28, the air-conditioning control that prioritizes the window clearing performance is performed, so that even if there is a request for acceleration, the electromagnetic clutch 36 is engaged, and the control that prioritizes the window clearing performance is performed. (T4 to t5 section, t6 to t7 section). Therefore, air conditioning control in response to a window clearing request in the defroster mode is performed, and external visibility due to window clearing is secured.

  As a result, it is possible to secure the external performance due to the window clear in the scene where the window clear is required, while securing the power performance in the scene where the window clear is not required. For example, it is assumed that the dehumidifying ability of the evaporator 25 is reduced due to the execution of the cooperative control with the priority on the power performance (disconnection of the electromagnetic clutch 36), and that the front window 28 is fogged. In this case, when the occupant turns on the front defroster switch 56 and makes a request for window clearing, the air conditioner system 2 operates and blows conditioned air onto the front window 28, thereby quickly removing the fogging on the inner surface of the window. For this reason, external visibility in front of the vehicle is ensured, and it is possible to prevent the driving from being hindered. Also, in the case of a vehicle equipped with a front camera that captures an image of the front of the vehicle, it is possible to ensure clarity of image data from the front camera.

  As described above, the cooperative control method and the cooperative control device of the driving force control and the air conditioning control of the first embodiment have the following effects.

(1) A controller (coordination) that performs cooperative control between the driving force control of the driving source for driving (engine 11) and the air conditioning control of the air conditioning system 2 having the compressor 21 driven directly or indirectly by the driving source for driving. In a cooperative control method of driving force control and air conditioning control including the controller 46),
Determine whether there is an acceleration request,
It is determined whether or not there is a request for clearing the front window 28,
If there is no window clearing request, perform air conditioning control giving priority to power performance based on acceleration request,
If there is a window clearing request, air conditioning control is performed to prioritize the window clearing performance for the window clearing request over the power performance based on the acceleration request (FIG. 4).
As described above, when there is a request for clearing the window of the front window 28, air conditioning control that gives priority to the window clearing performance over the power performance is performed. As a result, it is possible to provide a cooperative control method of driving force control and air conditioning control that ensures external performance due to window clearing in a scene where window clearing is required, while ensuring power performance in a scene where window clearing is not required.

(2) The controller (cooperative controller 46) has an acceleration air-conditioning stop function (acceleration air-conditioner OFF function) to stop the compressor 21 and secure power performance when there is an acceleration request.
If there is an acceleration request and there is no window clearing request, the acceleration air conditioning stop function is permitted, the compressor 21 is stopped, and the power performance is prioritized,
When there is an acceleration request and a window clearing request, the air conditioning stop function at acceleration is prohibited, and the compressor 21 is driven to give priority to the window clearing performance (FIG. 3).
In this manner, the cooperative control is incorporated based on the acceleration air conditioning stop function (acceleration air conditioner OFF function) previously provided in the controller (cooperative controller 46). As a result, the cooperative control of the driving force control and the air conditioning control can be easily incorporated by simply utilizing the function of stopping the air conditioning at the time of acceleration (the function of turning off the air conditioner at the time of acceleration) and adding the presence / absence determination of the window clearing request.

(3) It is determined that the acceleration request is present when the accelerator opening APO is equal to or greater than the acceleration request determination threshold (FIG. 2).
Therefore, the presence or absence of an acceleration request can be easily determined based on the magnitude of the accelerator opening APO.

(4) When the air conditioning mode by the air conditioner system 2 is manually selected, it is determined that a window clearing request has been made when an air conditioning mode (defroster mode) that requires window clearing is selected (FIG. 2).
For this reason, the presence or absence of a window clearing request can be easily determined by manually selecting the air conditioning mode (defroster mode) that requires window clearing.

(5) When automatically selecting the air-conditioning mode by the air-conditioning system 2, when selection information of the air-conditioning mode (defroster mode) for which window clearing is requested is input, it is determined that there is a window clearing request (FIG. 2).
Therefore, by automatically selecting the air conditioning mode (defroster mode) for requesting window clearing, it is possible to easily determine the presence or absence of a window clearing request.

(6) A controller (coordination) that performs cooperative control between the driving force control of the driving source for driving (engine 11) and the air conditioning control of the air conditioning system 2 having the compressor 21 driven directly or indirectly by the driving source for driving. In a cooperative control device for driving force control and air conditioning control including the controller 46),
The controller (cooperation controller 46)
An acceleration request determining unit 46a that determines whether there is an acceleration request;
A window clear request determining unit 46d that determines whether there is a window clear request for the front window 28;
If there is no window clearing request, perform air conditioning control giving priority to the power performance based on the acceleration request.If there is a window clearing request, perform air conditioning control giving priority to the window clearing performance for the window clearing request over the power performance based on the acceleration request. (See FIG. 2).
As described above, when there is a request for clearing the window of the front window 28, air conditioning control that gives priority to the window clearing performance over the power performance is performed. As a result, it is possible to provide a cooperative control device for driving force control and air conditioning control that ensures external performance due to window clearing in a scene where window clearing is required, while securing power performance in a scene where window clearing is not required.

  As described above, the cooperative control method and the cooperative control device of the driving force control and the air conditioning control according to the present disclosure have been described based on the first embodiment. However, the specific configuration is not limited to the first embodiment, and changes and additions of the design are allowed without departing from the gist of the invention according to each claim of the claims.

  In the first embodiment, an example in which a compressor directly driven by the engine 11 is used as the compressor 21 has been described. However, an electric compressor driven indirectly by a driving source for traveling may be used as the compressor. In the case of an electric compressor, a generator is driven by a driving source for traveling to generate electric power, the battery is charged, and a compressor motor is driven by a battery power supply. Therefore, since the power generation load of the generator is applied to the driving source for driving, when the power performance is prioritized, it can be realized by reducing the power generation load and securing the driving force accordingly.

  In the first embodiment, when there is an acceleration request and there is no window clearing request, the cooperative controller 46 permits the acceleration air conditioner OFF function, stops the compressor 21, and gives priority to the power performance. In the case where there is an acceleration request and a window clearing request, the air conditioner OFF function during acceleration is prohibited and the compressor 21 is driven to give priority to the window clearing performance. However, as the cooperative controller, for example, when the compressor is a variable displacement compressor, an example in which the compressor displacement control is used instead of the compressor ON / OFF control may be used. In this case, when the power performance is prioritized, the change control is performed to the small capacity side, and when the window clear performance is prioritized, the change control is performed to the large capacity side. Further, when the compressor is an electric compressor, an example may be adopted in which the compressor is implemented by controlling the power generation load by the generator. In this case, in this case, when the power performance is prioritized, the change control is performed toward the small power generation load, and when the window clear performance is prioritized, the change control is performed toward the large power generation load.

  In the first embodiment, an example in which the cooperative controller 46 has an acceleration air conditioner OFF function for stopping the compressor 21 and ensuring power performance when an acceleration request is made, and performs cooperative control based on the acceleration air conditioner OFF function showed that. However, an example in which the cooperative control is performed using a controller that does not have the air conditioner OFF function during acceleration may be used as the cooperative controller.

  In the first embodiment, an example in which the cooperative controller 46 is provided in the engine control module 41 has been described. However, the cooperative controller may be an example provided in the HVAC control module, or may be an example provided independently of the engine control module and the HVAC control module.

  In the first embodiment, an example has been described in which the acceleration request is determined to be present when the accelerator opening APO is equal to or greater than the acceleration request determination threshold. However, the acceleration request may be an example in which the presence or absence of the acceleration request is determined using the accelerator opening speed or the like other than the accelerator opening. Further, when a vehicle speed profile along the target route is generated together with the target route in the self-driving vehicle, an example may be used in which the presence or absence of an acceleration request is determined based on a rising gradient of the vehicle speed profile.

  In the first embodiment, an example is described in which the presence / absence of a window clearing request is determined based on whether or not the air conditioning mode (defroster mode) for requesting a window clearing is manually or automatically selected as the air conditioning mode of the air conditioner system 2. However, the presence / absence of a window clearing request is estimated by directly or indirectly monitoring the change in the evaporator temperature to determine the presence / absence of the dehumidifying capability of the evaporator. May be determined.

  In the first embodiment, the cooperative control method and the cooperative control device of the driving force control and the air conditioning control of the present disclosure are applied to an engine vehicle equipped with an air conditioner system having a compressor driven by an engine mounted as a driving source for traveling. Examples have been given. However, the cooperative control method and the cooperative control device of the driving force control and the air conditioning control according to the present disclosure are applicable to a hybrid vehicle in which an engine and a motor are mounted as driving sources for driving and an electric vehicle in which a motor is mounted as driving source for driving. Can also be applied. In short, the present invention can be applied to a vehicle equipped with an air conditioning system having a compressor driven directly or indirectly by a driving source for traveling.

1 engine drive system 11 engine (drive source for traveling)
2 Air conditioner system 21 Compressor 22 Capacitor 23 Receiver 24 Expansion valve 25 Evaporator 3 Drive transmission mechanism 36 Electromagnetic clutch 4 Engine control system 41 Engine control module 42 Vehicle speed sensor 43 Accelerator opening sensor 44 Engine crank angle sensor 45 Fuel injection actuator 46 Cooperative controller 46a Acceleration request determination unit 46b Air conditioner OFF time calculation unit 46c Cut time timer function unit 46d Window clear request determination unit 46e Implementation determination unit 5 Air conditioner control system 51 HVAC control module 52 Clutch driver 53 Air conditioner ON / OFF switch 54 Auto switch 55 Mode switch 56 Front defroster switch

Claims (6)

Driving force control of a driving source for driving and coordination control of air conditioning of an air conditioner system having a compressor driven directly or indirectly by the driving source for driving. In the control method,
Determine whether there is an acceleration request,
Determines whether there is a window clearing request for the front window,
If there is no window clearing request, perform air conditioning control giving priority to power performance based on the acceleration request,
When there is the window clearing request, an air-conditioning control that prioritizes window clearing performance for the window clearing request over power performance based on the acceleration request is performed. The cooperative control method of driving force control and air conditioning control according to claim 1,
The controller has an acceleration air-conditioning stop function for stopping the compressor and securing power performance when the acceleration request is present,
When there is the acceleration request, and when there is no window clearing request, the acceleration-time air-conditioning stop function is permitted, and the compressor is stopped to give priority to power performance,
When the acceleration request is present and the window clearing request is present, the acceleration air conditioning stop function is prohibited, and the compressor is driven to prioritize window clearing performance. Cooperative control method. In the cooperative control method between the driving force control and the air conditioning control according to claim 1 or 2,
The cooperative control method of driving force control and air conditioning control, wherein the acceleration request is determined to be an acceleration request when the accelerator opening is equal to or greater than an acceleration request determination threshold. A cooperative control method of driving force control and air conditioning control according to any one of claims 1 to 3,
When the air conditioning mode by the air conditioning system is manually selected, it is determined that the window clearing request is present if the air conditioning mode requesting the window clearing is selected. A cooperative control method between driving force control and air conditioning control. A cooperative control method of driving force control and air conditioning control according to any one of claims 1 to 3,
When automatically selecting an air-conditioning mode by the air-conditioning system, when inputting selection information of an air-conditioning mode for requesting a window clearing, it is determined that the window clearing request is present. A cooperative control method between driving force control and air conditioning control. Driving force control of a driving source for driving and coordination control of air conditioning of an air conditioner system having a compressor driven directly or indirectly by the driving source for driving. In the control device,
The controller is
An acceleration request determination unit that determines whether or not there is an acceleration request;
A window clear request determining unit that determines whether there is a window clear request for the front window;
When there is no window clearing request, air-conditioning control that prioritizes power performance based on the acceleration request is performed, and when there is the window clearing request, the window clearing performance for the window clearing request is less than the power performance based on the acceleration request. A cooperative control device for driving force control and air conditioning control, comprising: an execution determination unit that performs priority air conditioning control.