JP2011012637A - Control device of vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a control device of a vehicle capable of further properly setting time up to restarting from engine stopping, when performing control for temporarily stopping an engine when stopping the vehicle.SOLUTION: This control device of the vehicle has a window opening-closing sensor 51 for detecting an opening-closing state of a cabin window of the vehicle, a door opening-closing sensor 50 for detecting an opening-closing state of a cabin door, a humidity detecting means 30 for detecting humidity in a cabin, a humidity increase ratio calculating means 46 for calculating the humidity increase ratio ΔH in the cabin of the vehicle when stopping the engine 2 based on detecting humidity of a humidity sensor 30 when detecting that the window and the door of the cabin are wholly a closing state by the window opening-closing sensor 51 and the door opening-closing sensor 50 and the engine 2 is stopped, and an engine stopping time determining means 43 for determining an engine stopping time based on the humidity increase ratio ΔH calculated by the humidity increase ratio calculating means 46.

Description

  The present invention relates to a vehicle control device that stops an engine when a stop condition is satisfied during operation of an engine mounted on the vehicle and starts the engine when a start condition is satisfied while the engine is stopped.

  2. Description of the Related Art Conventionally, there has been known a vehicle control device that suppresses fuel consumption by idling while the vehicle is stopped by temporarily stopping the engine while the vehicle is stopped (for example, Patent Documents). 1).

In the vehicle control device described in Patent Document 1, the engine is stopped when the vehicle speed is zero, the vehicle is stopped, and the clutch switch is turned off (when the stop condition is satisfied). The engine is restarted when a predetermined time (S ₂ ) elapses (when the start condition is satisfied).

JP-A-4-358729

  In the vehicle control apparatus described in Patent Document 1, there is no description on how to set a predetermined time (elapsed time from engine stop to restart) which is an engine start condition.

  When the predetermined time is constant, the dehumidifier is operated by the driving force of the engine when the vehicle that has been naturally ventilated by traveling stops and stops the engine, or until the engine stops. When the engine is stopped and the dehumidifier is stopped, depending on the outside air and the interior of the vehicle interior, the window glass may become cloudy due to the increase in humidity in the vehicle interior before the engine starts. . If the window glass is fogged in this way, the driver has to remove the fog on the window glass when starting the vehicle next time.

  On the other hand, if the time from the stop of the engine to the start is set short so that the window glass is not fogged, the effect of suppressing the fuel consumption by stopping the engine while the vehicle is stopped becomes insufficient. There is.

  Therefore, the present invention provides a vehicle control device that can more appropriately set the time from engine stop to restart when performing control to temporarily stop the engine while the vehicle is stopped. With the goal.

  The present invention has been made to achieve the object, and a predetermined engine stop condition is established for a vehicle including an engine and a dehumidifier that operates by the driving force of the engine to dehumidify the vehicle interior. The present invention relates to an improvement in a vehicle control device including engine control means for starting the engine and starting the dehumidifier when a predetermined engine stop time elapses.

  The first aspect of the present invention is a window opening / closing detection means for detecting an opening / closing state of a window of the vehicle cabin of the vehicle, a humidity detection means for detecting humidity in the vehicle cabin of the vehicle, and the window opening / closing detection means. Thus, when it is detected that all the windows of the passenger compartment of the vehicle are closed and the engine is stopped, the engine is stopped when the engine is stopped based on the detected humidity of the humidity detecting means. Humidity increase rate calculating means for calculating the humidity increase rate in the passenger compartment of the vehicle, and engine stop time determining means for determining the engine stop time based on the humidity increase rate calculated by the humidity increase rate calculating means. It is characterized by having.

  According to a second aspect of the present invention, there is provided a door opening / closing detection means for detecting an opening / closing state of a door of a vehicle compartment of the vehicle, a humidity detection means for detecting humidity in the vehicle compartment of the vehicle, and the door opening / closing detection means. Thus, when it is detected that all the doors of the passenger compartment of the vehicle are closed and the engine is stopped, the engine is stopped when the engine is stopped based on the detected humidity of the humidity detecting means. Humidity increase rate calculating means for calculating the humidity increase rate in the passenger compartment of the vehicle, and engine stop time determining means for determining the engine stop time based on the humidity increase rate calculated by the humidity increase rate calculating means. It is characterized by having.

  In the present invention, the window glass in the passenger compartment is more likely to be fogged as the rate of increase in humidity in the passenger compartment of the vehicle when the engine is stopped is higher. Therefore, by determining the engine stop time based on the humidity increase rate in the passenger compartment when the engine is stopped, it is possible to determine the engine stop time corresponding to the ease of fogging of the window glass.

  However, when the door or window of the passenger compartment is open, the air in the passenger compartment is ventilated through the opened door or window, so that the humidity change in the passenger compartment becomes unstable. Therefore, in this case, if the engine stop time is determined based on the humidity increase rate, the engine stop time may become inappropriate.

  Therefore, the humidity increase rate calculating means is configured to increase the humidity in the passenger compartment when all the windows of the passenger compartment are closed or the doors of the passenger compartment are all closed and the humidity increase in the passenger compartment is stable. Calculate the rate. This prevents the engine stop time calculated by the engine stop time determination unit from becoming inappropriate based on the humidity increase rate in the vehicle compartment calculated by the humidity increase rate calculation unit. be able to.

  Further, the apparatus includes both a window opening / closing detection means for detecting an opening / closing state of a window of the passenger compartment and a door opening / closing detection means for detecting an opening / closing state of a door of the passenger compartment, and the humidity increase rate calculating means includes the window opening / closing detection means. And the door opening / closing means detects that the doors and windows of the vehicle compartment are all closed, and the humidity detecting means detects when the engine is stopped by the engine control means. It is more desirable to calculate the rate of increase in humidity in the vehicle cabin while the engine is stopped based on humidity.

  In the first aspect and the second aspect, the engine stop time determination unit determines the engine stop time to be shorter as the humidity increase rate calculated by the humidity increase rate calculation unit is higher. It is characterized by that.

  According to the present invention, the higher the humidity increase rate, the more easily the window glass of the passenger compartment becomes cloudy. Therefore, the engine stop time determining means can determine an appropriate engine stop time according to the condition in the passenger compartment. it can.

  In the first aspect and the second aspect, the engine stop time determination time includes the humidity detected by the humidity detection means when the engine is stopped and the fogging of the window glass of the vehicle cabin. A humidity difference with a cloudiness determination humidity set assuming humidity is calculated, and the engine stop time is set to a shorter time as the humidity difference is smaller.

  According to the present invention, as the humidity difference is smaller, the window glass of the passenger compartment is more likely to be fogged. Therefore, the engine stop time determining means can determine an appropriate engine stop time according to the situation in the passenger compartment. .

  In the first aspect and the second aspect, the humidity increase rate calculating means calculates the humidity increase rate when it is detected that an operation of starting the vehicle is performed by an occupant of the vehicle. Features.

  According to the present invention, it is assumed that the occupant of the vehicle performs the starting operation of the vehicle when all the occupants enter the vehicle and start the vehicle. Therefore, at this time, the humidity increase rate according to the number of passengers of the vehicle can be calculated by calculating the humidity increase rate by the humidity increase rate calculating means.

The block diagram of the vehicle carrying the vehicle control apparatus of this invention. The flowchart of the process which judges the opening / closing state of the window and door of a vehicle interior, and calculates the humidity increase rate in a vehicle interior. Explanatory drawing of the conditions for judging the detection of a passenger | crew number and the possibility of an engine stop from the humidity increase rate in a vehicle interior. The flowchart of the process which prevents fogging of a window glass and stops an engine temporarily. Explanatory drawing of the map which sets an engine stop time according to a passenger number and humidity difference.

  An embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 is a configuration diagram of a vehicle equipped with a vehicle control device of the present invention. The vehicle of the present embodiment is a hybrid vehicle that uses the engine 2 and the motor / generator G as drive sources, and when the vehicle stops waiting for a signal in order to reduce exhaust gas emissions and suppress fuel consumption, An engine stop / restart function (automatic idle stop function) for stopping the engine 2 when the stop condition is satisfied and restarting the engine 2 when the start condition is satisfied when the vehicle is stopped in a traffic jam is provided.

  The vehicle according to the present embodiment includes an air conditioner 1 that heats and cools the passenger compartment. The air conditioner 1 includes a cooling function and a dehumidifying function of the refrigeration cycle apparatus A (including the function of the dehumidifier of the present invention). And a heating function by the heater core H provided in the coolant circulation passage B of the engine 2.

  The operations of the engine 2, the motor / generator G, and the air conditioner 1 are controlled by a control device 4 (corresponding to a vehicle control device of the present invention) that is an electronic unit composed of a microcomputer or the like. The control device 4 executes a predetermined program to thereby execute vehicle condition detection means 41, fog determination humidity estimation means 42, engine stop time determination means 43, engine control means 44, air conditioning control means 45, humidity increase rate calculation means 46. , And the passenger number detection means 47.

  The control device 4 includes a humidity sensor 30 for detecting the humidity in the vehicle interior (corresponding to the humidity detecting means of the present invention), a vehicle interior sensor 31 for detecting the temperature in the vehicle interior, and an outside air temperature sensor 32 for detecting the temperature outside the vehicle. , A solar radiation sensor 33 for detecting the amount of solar radiation, a vehicle speed sensor 34 for detecting the vehicle speed, a door opening / closing sensor 50 (corresponding to the door opening / closing detection means of the present invention) for detecting the opening / closing state of each door of the passenger compartment, Detection signals from a window opening / closing sensor 51 (corresponding to the window opening / closing detection means of the present invention) for detecting the opening / closing state of the window and an evaporator temperature sensor 122 for detecting a temperature in the vicinity of the downstream side of the evaporator 12 described later are provided. Entered. Further, the control device 4 receives operation signals from an air direction switch 35 that sets an air conditioning direction into the vehicle interior and an air conditioning switch 36 that sets air conditioning conditions (temperature, air volume, etc.).

  Further, the operation of the engine 2, the motor / generator G, the air conditioner 1 and the like is controlled by a control signal output from the control device 4.

  The air conditioner 1 includes a compressor 6 driven by the engine 2, a condenser 9, a liquid receiver 10, an expansion valve 11, and an evaporator 12 as a configuration of the refrigeration cycle apparatus A. Further, as a configuration for heating, a heater core H, a water pump P driven by the engine 2, a thermostat Th, and a radiator R that constitute the coolant circulation path B of the engine 2 are provided.

  The engine 2 and the motor / generator G are directly connected to each other by a rotating shaft 21. With this configuration, it is possible to generate a driving force by the engine 2 and the motor / generator G and to generate regenerative power by the motor / generator G during deceleration. The rotation of the engine 2 and the motor / generator G is transmitted to the wheels W through the transmission Tr.

  The motor / generator G has a function of a starter motor for starting the engine 2, and the battery 18 of the power storage device 17 is charged by the regenerative power of the motor / generator G.

  Next, the refrigeration cycle apparatus A includes the compressor 6, the condenser 9, the liquid receiver 10, the expansion valve 11, and the evaporator 12, with the compressor 6 as the upstream side and the evaporator 12 as the downstream side. These are sequentially connected to the refrigerant circulation path 3. The refrigeration cycle evaporates, compresses, condenses, and expands refrigerant (made of chlorofluorocarbon, carbon dioxide, etc.).

  The air conditioning control means 45 of the control device 4 calculates the target evaporator temperature based on the temperature set by the air conditioning switch 36, the outside air temperature, the humidity, the amount of solar radiation, etc., and the target evaporator temperature and the evaporator temperature sensor 122. The compressor 6 is controlled so as to reduce the difference from the detected temperature. The compressor 6 is operated by the driving force of the engine 2, and the pulley 82 provided at the tip of the rotating shaft 81 of the engine 2, the pulley 85 provided on the driving shaft 84 of the compressor 6, and the pulleys 82, 85 are interlocked. The driving force of the engine 2 is transmitted to the compressor 6 by the belt 83 to be driven.

  Further, an electromagnetic clutch 86 is provided on the drive shaft 84 of the compressor 6, and the air conditioning control means 45 switches between transmission and interruption of the driving force of the engine 2 to the compressor 6 by the electromagnetic clutch 86.

  The condenser 9 cools and liquefies the refrigerant that has been compressed by the compressor 6 to a high temperature and high pressure by heat exchange. The liquid receiver 10 is a cylinder that temporarily stores the refrigerant liquefied by the condenser 9, and is connected to the expansion valve 11 via a dryer (not shown). Then, the refrigerant from which moisture has been removed by this dryer is supplied to the expansion valve 11.

  The expansion valve 11 is attached to the inlet side of the evaporator 12, and when the high-temperature and high-pressure liquefied refrigerant passes, the refrigerant is changed from a liquid to a mist-like gas and injected. The expansion valve 11 is provided with a throttle valve (not shown), and the air conditioning control means 45 controls the opening of the throttle valve to adjust the flow rate (refrigerant capacity) of the refrigerant injected into the evaporator 12. .

  The evaporator 12 is a heat exchanger that takes the heat of the air in the passenger compartment and cools it by vaporizing the refrigerant, and is accommodated in the air conditioning case 14. A blower fan 121 is provided on the upstream side of the evaporator 12, and the rotational speed of the blower fan 121 is controlled by the air conditioning control means 45. As the blower fan 121 rotates, the air dehumidified and cooled by the evaporator 12 and the air heated by the heater core H are blown into the vehicle interior, and the air or outside air in the vehicle interior is sucked into the air conditioning case 14. Air is sent into the vehicle compartment via the differential door 143, the vent door 144, and the floor door 145.

  Next, the configuration on the heating side will be described. The coolant of the engine 2 is supplied from the thermostat Th to the radiator R by a mechanical water pump P operated by the driving force of the engine 2 and circulates in the water jacket of the engine 2. Further, the coolant of the engine 2 is diverted to be used as a heat source for heating the passenger compartment, and flows through the circulation passage B that returns from the water pump P to the water pump P through the heater core H.

  The pulley 90 provided on the rotating shaft 81 of the engine 2, the pulley 92 provided on the drive shaft 94 of the water pump P, and the belt 91 that interlocks the pulleys 90, 92, drive the engine to the water pump P. Communicated.

  The heater core H performs heat exchange for heating the surrounding air with the heat of the coolant heated by the engine 2 in the radiator R. On the upstream side of the heater core H, an air mix door 142 for guiding the air that has passed through the evaporator 12 to the heater core H side or bypassing it is installed.

  The air mix door 142 is composed of, for example, a rotary plate door that opens and closes the air inlet of the heater core H, and is opened and closed by an air mix servo motor (not shown) installed on the rotation center side. The air mix door 142 prevents air in the air conditioning case 14 from flowing into the heater core H when in the closed position a, and causes half of the air in the air conditioning case 14 to flow into the heater core H when in the intermediate position b. And the air in the air conditioning case 14 flows to the heater core H when in the release position c. The air conditioning control means 45 operates an air mix servo motor (not shown) to change the position of the air mix door 142, thereby controlling the temperature of air blown into the passenger compartment.

  The air conditioning case 14 is provided with an intake door 141 for switching between an inside air inlet and an outside air inlet on the upstream side, and air dehumidified and cooled by the evaporator 12 on the downstream side, or air heated by the heater core H A differential door 143 for discharging the water to the defroster, a vent door 144 for discharging the air to the ventilator, and a floor door 145 for discharging to the foot are installed. The intake door 141, the differential door 143, the vent door 144, and the floor door 145 may be electrically rotated by a servo motor or manually rotated.

  Next, stop / restart processing of the engine 2 by the control device 4 will be described according to the flowcharts shown in FIGS.

  STEP 1 to STEP 3 in FIG. 2 are processes by the humidity increase rate calculation means 46. The humidity increase rate calculating means 46 proceeds to STEP 2 when the ignition switch (not shown) is turned on by the vehicle occupant in STEP 1 and the vehicle is started, and the detection signal of the door open / close sensor 50 and the window open / close sensor 51 From the detection signal, it is determined whether or not all doors and windows of the vehicle compartment are closed.

  When all the doors and windows in the passenger compartment are closed, the process proceeds to STEP 3 and the humidity increase rate Rh is calculated. The humidity increase rate Rh is calculated by dividing the range of increase in the detected humidity of the humidity sensor 30 at a predetermined time by this predetermined time.

  Subsequent STEP 4 to STEP 6 and STEP 10 are processes by the passenger number detection means 47. The passenger number detection means 47 detects the number of passengers in the vehicle by applying the humidity increase rate Rh to the determination condition shown in FIG. In FIG. 3, the vertical axis is set to humidity (H), the horizontal axis is set to time (t), a determination line L1 for one passenger, a determination line L2 for two passengers, and a passenger number 3 A determination line L3 for a person, a determination line L4 for a number of passengers 4 and a determination line L5 for a number of passengers 5 are shown. In addition, the inclination of each determination straight line L1-L5 becomes a humidity increase rate.

  The conditions for detecting the number of occupants according to FIG. 3 are as shown in Table 1 below, and the occupant number detection means 47 detects the number of occupants of the vehicle according to the detection conditions.

  In subsequent STEP 5, the occupant number detection means 47 determines whether or not the humidity increase rate Rh is larger than the determination threshold value Rh_lmt (inclination of the determination line L5). When the humidity increase rate Rh is equal to or less than the determination threshold value Rh_lmt, the process proceeds to STEP6, and the occupant number detection means 47 permits the engine 2 to stop and proceeds to STEP7. On the other hand, when the humidity increase rate Rh is larger than the determination threshold value Rh_lmt, the window glass of the passenger compartment is easily fogged. Therefore, the process branches to STEP 10, and the passenger number detection means 47 prohibits the stop of the engine 2 and proceeds to STEP 7 to end the process.

  Further, in STEP 2, when any door or window in the passenger compartment is open, the air in the passenger compartment is ventilated through the open door or window, and the humidity increase rate Rh in the passenger compartment is stabilized. Cannot be calculated. Therefore, in this case, the process branches to STEP 10 and the occupant number detection means 47 prohibits the stop of the engine 2 and proceeds to STEP 7 to end the process.

  Next, stop / restart processing of the engine 2 by the engine control means 44 will be described according to the flowchart shown in FIG.

  When the stop of the engine 2 is permitted in STEP 6 of FIG. 2 described above, the engine control unit 44 repeatedly executes the flowchart shown in FIG. Further, when the engine 2 is prohibited from being stopped in STEP 10 of FIG. 2, the engine control means 44 does not execute the engine 2 stop / restart process.

  The engine control unit 44 determines whether or not the engine stop condition is satisfied in STEP20. Here, “the humidity Hs in the passenger compartment detected by the humidity sensor 30 is lower than the fog determination humidity Hd estimated by the fog determination humidity estimation means 42” is set as the engine stop condition.

  The cloudiness determination humidity estimation means 42 is a vehicle interior temperature detected by the vehicle interior temperature sensor 31, an outside air temperature detected by the outside air temperature sensor 32, an amount of solar radiation detected by the solar radiation sensor 33, and immediately before the vehicle detected by the vehicle speed sensor 34 stops. Based on the vehicle speed, the direction of air flow into the vehicle interior by the blower fan 121 set by the wind direction switch 35, the air conditioning conditions set by the air conditioning switch 36, and the like are detected.

  It should be noted that the detection of the situation where the vehicle is placed is not necessarily performed based on all these elements, and may be performed based only on the outside temperature, for example. Further, the situation where the vehicle is placed may be detected in combination with other factors such as the degree of opening and closing of the window of the vehicle.

  The cloudiness determination humidity estimation means 42 applies the cloudiness determination humidity Hd to the map indicating the correlation between the situation where the vehicle is placed and the cloudiness determination humidity Hd. presume. This map is determined by experiments, computer simulations, etc., and the data of this map is stored in advance in a memory (not shown). Further, the cloudiness determination humidity Hd may be estimated by a correlation equation between the situation where the vehicle is placed and the cloudiness determination humidity Hd, instead of the map.

  When the engine stop condition is satisfied in STEP 20 (when the detected humidity Hs in the passenger compartment is less than the cloudiness determination humidity Hd), the process proceeds to STEP 21. STEP 21 is processing by the engine stop time determination means 43. The engine stop time determination unit 43 calculates a humidity difference ΔH (= detection humidity Hs−clouding determination humidity Hd) between the detected humidity Hs of the humidity sensor 30 and the cloudiness determination humidity Hd immediately before the engine 2 is stopped in STEP22. .

  Note that the detection timing of the humidity Hs used for calculating the humidity difference ΔH may be not just before the engine 2 is stopped, but when the engine 2 is stopped or immediately after the engine 2 is stopped.

  In the next STEP 22, the engine control means 44 stops the engine 2. The following STEP 23 is processing by the engine stop time determining means 43. The engine stop time determining means 43 is the number of passengers of the vehicle detected by the passenger number detecting means 47 in STEP 4 of FIG. 2 and the humidity calculated in STEP 21. Based on the difference ΔH, the engine stop time Ts is determined.

  Specifically, the engine stop time determining means 43 determines the engine stop time Ts using the correspondence map between the number of passengers and the humidity difference ΔH and the engine stop time Ts shown in FIG. In the correspondence map shown in FIG. 3, the vertical axis is the engine stop time (Ts), the horizontal axis is the humidity difference (ΔH), N1 for one passenger, N2 for two passengers, and three passengers N3, N4 for 4 passengers, and N5 for 5 passengers, the correspondence between humidity difference ΔH and engine stop time Ts is set.

In the correspondence map of FIG. 5, when the humidity difference ΔH is less than ΔH ₁ , the engine stop time Ts is set to the initial set time Ts ₀ . When the humidity difference ΔH is equal to or greater than ΔH ₁ , the engine stop time Ts is set to a longer time as the humidity difference ΔH increases.

The engine stop time Ts is set to a shorter time as the number of passengers increases when the humidity difference ΔH is the same. For example, as shown in the figure, when the humidity difference ΔH is ΔH ₂ and the number of passengers is 1 (N1), the engine stop time Ts is determined as Ts ₂ and the number of passengers is 4 (N4). In some cases, the engine stop time Ts is determined to be Ts ₁ shorter than Ts ₂ .

  Thus, by determining the engine stop time Ts based on the number of passengers and the humidity difference ΔH, which is an element that determines the ease of fogging of the window glass of the vehicle, while preventing the fogging of the window glass of the vehicle from occurring, By setting the engine stop time Ts as long as possible, the effect of suppressing fuel consumption can be enhanced.

  Note that the correspondence map shown in FIG. 5 is created based on the results of experiments and computer simulation, and the data of the correspondence map is held in advance in a memory (not shown). Further, the engine stop time Ts may be determined using a correlation formula between the humidity difference ΔH and the number of passengers and the engine stop time Ts instead of the correspondence map.

  Thus, when the engine stop time Ts is determined by the engine stop time determination means 43 in STEP 23, the engine control means 44 sets the timer time of the engine start timer to the engine stop time Ts in the next STEP 24. .

  In subsequent STEP 25, the engine control means 44 starts the engine start timer. When the engine start timer expires in STEP 26, the process proceeds to STEP 27 and the engine 2 is started. Further, in the next STEP 28, the refrigeration cycle apparatus A is activated via the air conditioning control means 45, the blower fan 121 is activated, and the process returns to STEP 20. Since the dehumidification in the passenger compartment is started by the activation of the refrigeration cycle apparatus A and the blower fan 121, the vehicle window glass can be prevented from being fogged.

  In the above embodiment, the engine stop time determination time 43 is determined by using the number of passengers in the vehicle and the humidity difference ΔH immediately before the engine 2 is stopped. However, only the number of passengers in the vehicle is determined. The engine stop time Ts may be set to a shorter time as the number of passengers increases. In this case, since the occupant number detection means 47 detects the number of occupants based on the humidity increase rate Rh as described above, the engine stop time Ts is determined based on the humidity increase rate.

  In the above embodiment, the present invention is applied to a hybrid vehicle. However, if the vehicle has an automatic idle stop function that automatically stops and restarts the engine, only the engine is driven. The present invention can also be applied to a vehicle as a source.

  DESCRIPTION OF SYMBOLS 1 ... Air conditioning apparatus, 2 ... Engine, 4 ... Control apparatus (vehicle control apparatus), 6 ... Compressor, 9 ... Condenser, 12 ... Evaporator, 30 ... Humidity sensor, 31 ... Inside temperature sensor, 32 ... Outside temperature Sensor, 33 ... Solar radiation sensor, 34 ... Vehicle speed sensor, 35 ... Wind direction switch, 36 ... Air conditioning switch, 37a to 37d ... Seat belt wearing sensor, 41 ... Vehicle condition detection device, 42 ... Cloudiness determination humidity estimation means, 43 ... Engine stop Time determining means 44 ... Engine control means 45 ... Air conditioning control means 46 ... Humidity increase rate calculating means 47 ... Passenger number detecting means 50 ... Door open / close sensor 51 ... Window open / close sensor 121 ... Blower fan A ... Refrigeration cycle device, G ... motor / generator, H ... heater core.

Claims (6)

For a vehicle having an engine and a dehumidifier that operates by the driving force of the engine to dehumidify the vehicle interior, the engine is stopped when a predetermined engine stop condition is satisfied, and then a predetermined engine stop time A vehicle control device comprising engine control means for starting the engine and starting the dehumidifier when elapses.
A window opening / closing detection means for detecting an opening / closing state of a window of a compartment of the vehicle;
Humidity detecting means for detecting the humidity in the interior of the vehicle;
When the window opening / closing detection means detects that all the windows of the vehicle compartment of the vehicle are closed and the engine is stopped, the engine is based on the detected humidity of the humidity detection means. A humidity increase rate calculating means for calculating a humidity increase rate in the passenger compartment of the vehicle when the vehicle is stopped;
A vehicle control apparatus comprising: an engine stop time determining unit that determines the engine stop time based on the humidity increase rate calculated by the humidity increase rate calculating unit. The vehicle control device according to claim 1,
A door opening / closing detecting means for detecting an opening / closing state of the door of the vehicle compartment;
When the humidity increase rate calculating means detects that the door and window of the vehicle compartment of the vehicle are all closed by the window opening / closing detecting means and the door opening / closing means, and the engine is stopped. In addition, the vehicle control apparatus calculates a humidity increase rate in the vehicle interior of the vehicle while the engine is stopped based on the humidity detected by the humidity detecting means. For a vehicle having an engine and a dehumidifier that operates by the driving force of the engine to dehumidify the vehicle interior, the engine is stopped when a predetermined engine stop condition is satisfied, and then a predetermined engine stop time A vehicle control device comprising engine control means for starting the engine and starting the dehumidifier when elapses.
Door opening / closing detection means for detecting an opening / closing state of a door of a vehicle compartment of the vehicle;
Humidity detecting means for detecting the humidity in the interior of the vehicle;
When the door opening / closing detection means detects that all doors of the vehicle compartment of the vehicle are closed and the engine is stopped, the engine is detected based on the detected humidity of the humidity detection means. A humidity increase rate calculating means for calculating a humidity increase rate in the passenger compartment of the vehicle when the vehicle is stopped;
A vehicle control apparatus comprising: an engine stop time determining unit that determines the engine stop time based on the humidity increase rate calculated by the humidity increase rate calculating unit. The vehicle control device according to any one of claims 1 to 3,
The vehicle control device according to claim 1, wherein the engine stop time determination time is determined to be a shorter time as the humidity increase rate calculated by the humidity increase rate calculating means is higher. The vehicle control device according to claim 4, wherein
The engine stop time determination time is a humidity between a humidity detected by the humidity detecting means when the engine is stopped and a cloudiness determination humidity set on the assumption that the window glass of the vehicle compartment is fogged. A vehicle control device characterized by calculating a difference and setting the engine stop time to a shorter time as the humidity difference is smaller. The vehicle control device according to any one of claims 1 to 5,
The vehicle control apparatus according to claim 1, wherein the humidity increase rate calculating means calculates the humidity increase rate when it is detected that an operation of starting the vehicle is performed by an occupant of the vehicle.

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