Vehicle control devices

Abstract

The present invention relates to a vehicle control device. When the amount of GPF accumulation increases, a CPU operates a display to urge a user to take the vehicle to a repair shop. When a GPF regeneration request is input from a workshop-side terminal in the repair shop, the CPU performs a regeneration process with the vehicle stopped. When the opening and closing body is in a closed state, the CPU controls the temperature of the GPF during the regeneration process to a lower temperature than when the opening and closing body is in an open state.

Description

Technical Field

[0001] The invention relates to a control device for a vehicle. Background Art

[0002] For example, Japanese Patent Application Laid-Open No. 2008-196394 describes an internal combustion engine having an exhaust gas purification device for collecting particulate matter in the exhaust gas in the exhaust passage. The document describes that when the vehicle equipped with the internal combustion engine is stopped, a regeneration process is performed to remove particulate matter by raising the temperature of the exhaust gas purification device. Summary of the invention

[0003] When the vehicle is parked, the amount of heat dissipated when the exhaust purification device is heated becomes smaller than when the vehicle is running. Therefore, there is a concern that the temperature of the exhaust purification device itself, the parts of the exhaust system connected to the exhaust purification device, etc. will exceed the allowable range. In this regard, it can be considered to open the opening and closing body that opens and closes the upper opening of the storage chamber that accommodates the internal combustion engine and perform the regeneration process. In this way, the amount of heat dissipated can be increased compared to the case where the opening and closing body is closed and the regeneration process is performed. Therefore, it is possible to suppress the temperature of the exhaust purification device itself, the parts of the exhaust system connected to the exhaust purification device, etc. from becoming excessively high. However, due to factors such as rainy days, there is no guarantee that the opening and closing body will be reliably set to the open state during the regeneration process.

[0004] Means for solving the above-mentioned problems and their effects are described below.

[0005] 1. A vehicle control device, applied to a vehicle equipped with an internal combustion engine and a sensor for detecting the open and closed state of an opening and closing body for opening and closing an opening portion of a storage chamber that accommodates the internal combustion engine, the internal combustion engine being equipped with an exhaust purification device for purifying exhaust gas, the vehicle control device executing: an opening and closing information acquisition process for acquiring a detection result of the sensor; a temperature increase process for increasing the temperature of the exhaust purification device when the vehicle stops traveling; and a limiting process for limiting the amount of heat generated per unit time in the internal combustion engine by the temperature increase process to a smaller side when the opening and closing body is in a closed state compared to a case where the opening and closing body is in an open state.

[0006] In the above structure, when the opening and closing body is in the closed state, the amount of heat generated per unit time in the internal combustion engine is limited to a smaller side than when the opening and closing body is in the open state. Therefore, when the opening and closing body is in the closed state, the temperature of the exhaust system components and the like can be suppressed from becoming excessively high, compared with a case where the same amount of heat is supplied regardless of the opening and closing state.

[0007] 2. According to the vehicle control device described in 1 above, the limiting process includes the following process: when the opening and closing body is in a closed state, the temperature of the exhaust purification device is limited to a lower value than when the opening and closing body is in an open state.

[0008] In the above structure, when the opening and closing body is in the closed state, the temperature of the exhaust purification device is limited to a lower value than when the opening and closing body is in the open state. Therefore, even if the heat dissipation of the internal combustion engine is reduced due to the opening and closing body being in the closed state, the temperature of the exhaust system components and the like can be suppressed from becoming excessively high.

[0009] 3. According to the control device of the vehicle described in 2 above, an ambient temperature acquisition process for acquiring the ambient temperature is performed, and the limiting process includes the following processing: limiting the temperature of the exhaust purification device to a low value according to the ambient temperature in such a way that the temperature of the exhaust purification device when the ambient temperature is high becomes lower than the temperature of the exhaust purification device when the ambient temperature is low.

[0010] When the ambient temperature is high, the heat dissipation of the internal combustion engine becomes smaller than when the ambient temperature is low. Therefore, in the above structure, the temperature of the exhaust purification device is limited to a low value according to the ambient temperature. In particular, the limitation includes a process of limiting the temperature of the exhaust purification device to a lower value when the ambient temperature is high than when the ambient temperature is low. Therefore, even when the ambient temperature is high, it is possible to suppress the temperature of the exhaust system components and the like from becoming excessively high.

[0011] 4. According to the control device of the vehicle described in any one of 1 to 3 above, the temperature increase process is a process of intermittently increasing the thermal energy supplied to the exhaust system of the internal combustion engine, and the limiting process includes the following processes: when the opening and closing body is in a closed state, the execution time of the process of increasing the thermal energy supplied to the exhaust system is limited to a shorter value than when the opening and closing body is in an open state.

[0012] If the thermal energy is increased, there is a tendency for the temperature of the exhaust system components to gradually increase. Therefore, in order to make the temperature of the exhaust system components fall within the allowable range, it is possible to consider temporarily stopping the regeneration process before it exceeds the allowable range. Here, when the opening and closing body is in a closed state, the heat dissipation of the internal combustion engine is smaller than when the opening and closing body is in an open state, so the execution time of the regeneration process exceeding the allowable range is shorter. Therefore, in the above-mentioned structure, when the opening and closing body is in a closed state, the execution time of one time is limited to a shorter value than when the opening and closing body is in an open state. Thus, even when the heat dissipation of the internal combustion engine becomes smaller due to the opening and closing body being in a closed state, the temperature of the exhaust system components can be suppressed from becoming excessively high.

[0013] 5. According to the control device of the vehicle described in paragraph 4 above, an ambient temperature acquisition process for acquiring the ambient temperature is executed, and the restriction process includes the following process: limiting the execution time to a short value according to the ambient temperature in such a manner that the execution time when the ambient temperature is high becomes less than the execution time when the ambient temperature is low.

[0014] When the ambient temperature is high, the heat dissipation of the internal combustion engine becomes smaller than when the ambient temperature is low. Therefore, in the above structure, the execution time is limited to a short value according to the ambient temperature. In particular, the limitation includes a process of limiting the execution time to a shorter value when the ambient temperature is high than when the ambient temperature is low. Therefore, even when the ambient temperature is high, it is possible to suppress the temperature of the exhaust system components and the like from becoming excessively high.

[0015] 6. A vehicle control device, applied to a vehicle equipped with an internal combustion engine and a sensor for detecting the open and closed state of an opening and closing body for opening and closing an opening of a storage chamber that accommodates the internal combustion engine, the internal combustion engine being equipped with an exhaust purification device for purifying exhaust gas, the vehicle control device executing: an opening and closing information acquisition process for acquiring a detection result of the sensor; a temperature increase process for increasing the temperature of the exhaust purification device when the vehicle stops traveling; and a restriction process for limiting the time of one increase in thermal energy supplied to the exhaust system of the internal combustion engine by the temperature increase process to a shorter side when the opening and closing body is in a closed state compared to a case where the opening and closing body is in an open state.

[0016] If the thermal energy is increased, there is a tendency for the temperature of the exhaust system components to gradually increase. Therefore, in order to make the temperature of the exhaust system components within the allowable range, it is possible to consider temporarily stopping the regeneration process before exceeding the allowable range. Here, when the opening and closing body is in a closed state, the heat dissipation of the internal combustion engine is small compared to the case where the opening and closing body is in an open state, so the execution time of the regeneration process exceeding the allowable range is shorter. Therefore, in the above-mentioned structure, when the opening and closing body is in a closed state, the time limit for one increase in the thermal energy supplied to the exhaust system is set to a short value compared to the case where the opening and closing body is in an open state. Thus, even when the heat dissipation of the internal combustion engine becomes small due to the opening and closing body being in a closed state, the temperature of the exhaust system components can be suppressed from becoming excessively high.

[0017] 7. According to the control device of the vehicle described in any one of 1 to 6 above, the exhaust purification device captures particulate matter in the exhaust gas discharged into the exhaust system of the internal combustion engine, the temperature increase process is included in a regeneration process for removing the particulate matter captured by the exhaust purification device, and the control device of the vehicle executes: a mass calculation process for calculating the amount of the particulate matter when the temperature increase process is executed; and a quantity information notification process for operating specified hardware in order to notify information related to the calculated amount of the particulate matter when the temperature increase process is executed.

[0018] In the above configuration, information related to the amount of particulate matter is notified when the temperature raising process is executed, thereby enabling a person to understand the progress of the regeneration process.

[0019] 8. According to the control device of a vehicle described in any one of 1 to 7 above, the exhaust purification device captures particulate matter in the exhaust gas discharged into the exhaust system of the internal combustion engine, the temperature increase process is included in a regeneration process for removing the particulate matter captured by the exhaust purification device, and the control device of the vehicle executes: a required time calculation process for calculating the time required for completion of the regeneration process based on the value of a variable for adjusting the temperature of the exhaust purification device used in the temperature increase process and the amount of the particulate matter; and a time information notification process for operating prescribed hardware to notify information related to the calculated required time when the regeneration process is executed.

[0020] In the above configuration, information on the time required until the regeneration process is completed is notified, thereby enabling a person to understand the progress of the regeneration process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Features, advantages and technical and industrial significance of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings, in which like numerals represent like elements, and in which:

[0022] Figure 1 It is a diagram showing the configuration of a vehicle drive system and a control device and a dealer terminal according to the first embodiment.

[0023] Figure 2 This is a flowchart showing the procedure of processing executed by the control device according to the first embodiment.

[0024] Figure 3 This is a flowchart showing the procedure of processing executed by the control device according to the first embodiment.

[0025] Figure 4 This is a flowchart showing the procedure of processing executed by the control device according to the first embodiment.

[0026] Figure 5 : is a graph showing the relationship between the upper limit temperature of the GPF and the ambient temperature according to the first embodiment.

[0027] Figure 6 This is a flowchart showing the procedure of processing executed by the control device according to the second embodiment.

[0028] Figure 7 This is a flowchart showing the procedure of processing executed by the control device according to the second embodiment.

[0029] Figure 8 This is a flowchart showing the procedure of processing executed by the control device according to the third embodiment. DETAILED DESCRIPTION

[0030] <First Embodiment>

[0031] Hereinafter, regarding the first embodiment, Figure 1 Side description.

[0032] Figure 1 The upper opening of the housing chamber 2 of the illustrated vehicle VC can be opened and closed by an opening and closing body 4. In the housing chamber 2, an internal combustion engine 10 is accommodated.

[0033] A throttle valve 14 is provided in the intake passage 12 of the internal combustion engine 10. The air sucked from the intake passage 12 flows into the combustion chamber 16. Fuel is injected into the combustion chamber 16 by a fuel injection valve 18. In the combustion chamber 16, the mixture of fuel and air is used for combustion through the spark discharge of the ignition device 20. The combustion energy generated at this time is converted into the energy of the crankshaft 22. The mixture after combustion is discharged to the exhaust passage 30 as exhaust gas. A three-way catalyst 32 with oxygen storage capacity and a gasoline particulate filter (GPF34) are provided in the exhaust passage 30. It should be noted that GPF34 is a device in which a three-way catalyst is carried on a collector for capturing PM.

[0034] The crankshaft 22 is mechanically connected to the gear carrier C of the planetary gear mechanism 40 constituting the power distribution device. The rotating shaft 42a of the first motor generator 42 is mechanically connected to the sun gear S of the planetary gear mechanism 40. In addition, the rotating shaft 44a of the second motor generator 44 and the drive wheel 50 are mechanically connected to the ring gear R of the planetary gear mechanism 40. An AC voltage is applied to the terminals of the first motor generator 42 through the first converter 46. In addition, an AC voltage is applied to the terminals of the second motor generator 44 through the second converter 48.

[0035] The control device 60 operates the operating parts of the internal combustion engine 10, such as the throttle valve 14, the fuel injection valve 18, and the ignition device 20, in order to control the control amount of the internal combustion engine 10, i.e., the torque, the exhaust component ratio, etc. The control device 60 also operates the first inverter 46 in order to control the control amount of the first motor generator 42, i.e., the torque, etc. The control device 60 also operates the second inverter 48 in order to control the control amount of the second motor generator 44, i.e., the torque, etc. Figure 1 , operation signals MS1 to MS5 of the throttle valve 14, the fuel injection valve 18, the ignition device 20, the first converter 46, and the second converter 48 are recorded. The control device 60 refers to the intake air amount Ga detected by the air flow meter 70 and the output signal Scr of the crank angle sensor 72 in order to control the control amount of the internal combustion engine 10. In addition, the control device 60 refers to the water temperature THW detected by the water temperature sensor 74 and the temperature Tgpf of the GPF 34 detected by the temperature sensor 76. In addition, the control device 60 refers to the output signal Sm1 of the first rotation angle sensor 80 that detects the rotation angle of the first motor generator 42 in order to control the control amount of the first motor generator 42. In addition, the control device 60 refers to the output signal Sm2 of the second rotation angle sensor 82 that detects the rotation angle of the second motor generator 44 in order to control the control amount of the second motor generator 44. In addition, the control device 60 refers to the output signal Sb of the opening and closing sensor 84 that detects the opening and closing state of the opening and closing body 4 and the ambient temperature Ta detected by the ambient temperature sensor 86. In addition, the control device 60 refers to the vehicle speed SPD detected by the vehicle speed sensor 88 .

[0036] The control device 60 includes a CPU 62, a ROM 64, and a peripheral circuit 66, which can communicate via a communication line 68. Here, the peripheral circuit 66 includes a circuit for generating a clock signal that specifies internal operations, a power supply circuit, a reset circuit, etc. The control device 60 controls the control amount by the CPU 62 executing a program stored in the ROM 64.

[0037] Hereinafter, among the processes executed by the control device 60 , processes related to the presence or absence of a regeneration request for the GPF 34 , processes related to forced regeneration of the GPF 34 , and processes related to setting of control variables for the forced regeneration process will be described.

[0038] "Processing related to whether or not regeneration of GPF 34 is required"

[0039] exist Figure 2 2 shows the process steps related to whether or not the regeneration request of the GPF 34 is present. Figure 2The processing shown is realized by the CPU 62 repeatedly executing, for example, a program stored in the ROM 64 at a predetermined cycle. In the following, the step number of each process is represented by a number with "S" at the beginning.

[0040] exist Figure 2 In the series of processing shown in FIG. 1 , the CPU 62 first obtains the rotation speed NE, the charging efficiency η, the water temperature THW, the temperature Tgpf, the intake air amount Ga, and the increment coefficient K (S10). The rotation speed NE is the rotation speed of the crankshaft 22. The rotation speed NE is calculated by the CPU 62 based on the output signal Scr. In addition, the charging efficiency η is calculated by the CPU 62 based on the rotation speed NE and the intake air amount Ga. The increment coefficient K becomes a value greater than "1" when the regeneration process of the GPF 34 is performed, and on the other hand, becomes "1" when the regeneration process is not performed.

[0041] Next, the CPU 62 calculates the accumulation amount DPM (S12) based on the value of the variable obtained by the process of S10. Here, the accumulation amount DPM is the amount of PM trapped in the GPF 34. In detail, the CPU 62 calculates the amount of PM in the exhaust gas discharged to the exhaust passage 30 based on the rotation speed NE, the charging efficiency η and the water temperature THW. In addition, the CPU 62 calculates the update amount ΔDPM of the accumulation amount DPM based on the amount of PM in the exhaust gas and the temperature Tgpf of the GPF 34. It should be noted that when executing the process of S36 described later, the update amount ΔDPM can be calculated based on the increment coefficient K and the intake air amount Ga. In addition, the CPU 62 updates the accumulation amount DPM by adding the update amount ΔDPM to the accumulation amount DPM.

[0042] Next, the CPU 62 determines whether the accumulation amount DPM is greater than or equal to the forced regeneration requirement value DPMH1 (S14). The forced regeneration requirement value DPMH1 is set to a value at which the amount of PM captured by the GPF 34 is excessive and it is desired to forcibly remove the PM in the repair shop. When the CPU 62 determines that the accumulation amount DPM is less than the forced regeneration requirement value DPMH1 (S14: No), it determines whether the accumulation amount DPM is greater than the normal regeneration requirement value DPMH2 (S16). The normal regeneration requirement value DPMH2 is set to a value at which the amount of PM captured by the GPF 34 is excessive and it is desired to perform the regeneration process when the regeneration requirement is satisfied while the vehicle VC is traveling. It should be noted that the normal regeneration requirement value DPMH2 is smaller than the forced regeneration requirement value DPMH1.

[0043] When the CPU 62 determines that the deposition amount DPM is equal to or larger than the normal regeneration execution value DPMH2 ( S16 : YES), it generates a normal regeneration request ( S18 ).

[0044] On the other hand, when the CPU 62 determines that the accumulation amount DPM is equal to or greater than the forced regeneration request value DPMH1 (S14: YES), the CPU 62 operates Figure 1 The display 90 shown in FIG. 10 is used to perform the notification process (S20). The display 90 displays a message urging the user to take the vehicle VC to a repair shop together with visual information indicating that the deposit amount DPM is excessively large.

[0045] It should be noted that, when the CPU 62 completes the processing of S18 and S20, or makes a negative determination in the processing of S16, it temporarily terminates the processing. Figure 2 A series of processing is shown.

[0046] "Processing related to forced regeneration of GPF34"

[0047] exist Figure 3 2 shows the process steps related to the forced regeneration of the GPF 34 . Figure 3 The series of processing shown is realized by the CPU 62 repeatedly executing a program stored in the ROM 64 at a predetermined cycle, for example.

[0048] exist Figure 3 In the series of processing shown, the CPU 62 first determines whether the execution flag F1 is "1" (S30). When the execution flag F1 is "1", it indicates that the regeneration process is being executed, and when it is "0", it indicates that it is not. When the CPU 62 determines that the execution flag F1 is "0" (S30: No), it determines whether the logical AND of the following conditions (a) and (b) is true (S32).

[0049] Condition (a) is a condition that a regeneration command of the GPF 34 is inputted via the factory-side terminal 100. Figure 2 The user takes the vehicle VC to a repair shop, such as Figure 1 As shown, the control device 60 is connected to the factory side terminal 100 ".

[0050] It should be noted that if Figure 1 As shown, the factory terminal 100 includes a CPU 102, a ROM 104, a peripheral circuit 106, and a communication line 108. The CPU 102, the ROM 104, and the peripheral circuit 106 can communicate with each other through the communication line 108.

[0051] Condition (b) is a condition that the vehicle speed SPD is zero.

[0052] When the CPU 62 determines that the logical AND is true (S32: Yes), it substitutes "1" for the execution flag F1 (S34). Then, the CPU 62 executes the regeneration process (S36). That is, the CPU 62 stops the injection of fuel from the fuel injection valve 18 of any one of the cylinders #1 to #4. In addition, the CPU 62 makes the air-fuel ratio of the mixture in the combustion chamber 16 of the remaining cylinders richer than the theoretical air-fuel ratio. This process is used to discharge oxygen and unburned fuel into the exhaust passage 30, increase the temperature of the GPF 34, and burn and remove the PM captured by the GPF 34. That is, by discharging oxygen and unburned fuel into the exhaust passage 30, the unburned fuel is burned in the three-way catalyst 32, etc., and the temperature of the exhaust gas is increased. In this way, the temperature of the GPF can be increased. In addition, by supplying oxygen to the GPF 34, the PM captured by the GPF 34 can be burned and removed.

[0053] The CPU 62 periodically switches the cylinders for which fuel injection is stopped. The switching period is set to, for example, a predetermined number of times of one combustion cycle. Here, the predetermined number may be, for example, a number greater than 100.

[0054] In order to make the air-fuel ratio of the mixture in the combustion chamber 16 of the remaining cylinders richer than the theoretical air-fuel ratio, the CPU 62 sets the required injection amount Qd of these cylinders to a value obtained by multiplying the basic injection amount Qb by the increment coefficient K. The basic injection amount Qb is the injection amount required to make the air-fuel ratio of the mixture equal to the theoretical air-fuel ratio. The CPU 62 sets the increment coefficient K to a value obtained by adding the feedback correction amount FB to the increment base value Kb described later. The feedback correction amount FB is set to a value for avoiding excessive increase of the temperature Tgpf. The CPU 62 calculates the feedback correction amount FB based on the ambient temperature Ta, the output signal Sb and the temperature Tgpf. It should be noted that the reason for setting the ambient temperature Ta and the output signal Sb as input will be described later.

[0055] It should be noted that the CPU 62 controls the rotation speed NE of the crankshaft 22 to the target rotation speed NE* by controlling the rotation speed of the rotating shaft 42a of the first motor generator 42 during the regeneration process. Incidentally, the torque required of the internal combustion engine 10 during the regeneration process is determined by various requirements in the vehicle VC. Therefore, the torque required of the internal combustion engine 10 is temporarily uncertain during the regeneration process. Therefore, the charging efficiency η of the internal combustion engine 10 also changes during the regeneration process.

[0056] Next, the CPU 62 calculates the time Te required to end the regeneration process based on the temperature Tgpf of the GPF 34, the intake air amount Ga, the increment coefficient K, and the accumulation amount DPM (S38). The CPU 62 calculates the time Te required to end as a shorter value when the temperature Tgpf is large than when the temperature Tgpf is small. This is because the higher the temperature Tgpf, the greater the combustion speed of PM. In addition, the CPU 62 calculates the time Te required to end as a larger value when the accumulation amount DPM is large than when the accumulation amount DPM is small. In addition, the CPU 62 calculates the time Te required to end as a smaller value when the intake air amount Ga is large than when the intake air amount Ga is small.

[0057] Next, CPU 62 operates Figure 1 The display 90 shown displays information indicating the amount of accumulation DPM and the time required for completion Te (S40).

[0058] On the other hand, when the CPU 62 determines that the execution flag F1 is "1" (S30: YES), it determines whether the logical sum of the following conditions (c) and (d) is true (S42).

[0059] Condition (c) is a condition that the accumulation amount DPM is equal to or less than the end determination value DPML. The end determination value DPML is set according to the accumulation amount DPM when the regeneration process of the GPF 34 is sufficiently performed. It should be noted that the end determination value DPML is smaller than the normal regeneration request value DPMH2.

[0060] Condition (d) is a condition in which a stop command is input from the factory-side terminal 100. This condition assumes that the regeneration process is interrupted in the middle due to user's circumstances or the like.

[0061] When the CPU 62 determines that the logical OR is false (S42: No), it moves to the processing of S36. On the other hand, when the CPU 62 determines that the logical OR is true (S42: Yes), it ends the regeneration processing by substituting "0" into the execution flag F1 (S44). It should be noted that when the CPU 62 completes the processing of S40 and S44 and makes a negative determination in the processing of S32, it temporarily ends the processing. Figure 3 A series of processing is shown.

[0062] "Processing related to setting of control variables for forced regeneration processing"

[0063] exist Figure 4 2 shows the process steps related to the setting of the control variables of the forced regeneration process. Figure 4 The processing shown is realized by the CPU 62 repeatedly executing a program stored in the ROM 64 at a predetermined cycle, for example.

[0064] exist Figure 4 In the series of processing shown, the CPU 62 first determines whether the execution flag F1 is "1" (S50). When the CPU 62 determines that the execution flag F1 is "1" (S50: Yes), it obtains the charging efficiency η, the ambient temperature Ta and the output signal Sb (S52). Then, the CPU 62 calculates the incremental base value Kb (S54). The CPU 62 calculates the incremental base value Kb as a larger value when the opening and closing body 4 is in the open state than when the opening and closing body 4 is in the closed state. This is because: when the opening and closing body 4 is in the open state, the heat dissipation from the internal combustion engine 10 becomes larger than when the opening and closing body 4 is in the closed state.

[0065] That is, during the regeneration process, PM is oxidized and removed by raising the temperature of GPF34. GPF34 itself is designed to withstand the temperature at this time. However, among the components of the exhaust system, there are components whose allowable temperatures are lower than GPF34. Therefore, it is necessary to set the upper limit of the temperature of GPF34 in such a way that the components of the exhaust system are within their respective allowable temperature ranges. However, even if the temperature Tgpf of GPF34 is a temperature at which an oxidation reaction of PM occurs, when the temperature Tgpf is small, the time required for the regeneration process becomes longer compared to the case where the temperature Tgpf is large. Therefore, when the regeneration process is completed early, it is desirable to make the temperature of GPF34 higher.

[0066] Here, when the opening and closing body 4 is in the open state, the heat dissipation of the internal combustion engine 10 becomes larger than when the opening and closing body 4 is in the closed state. Therefore, when the opening and closing body 4 is in the open state, the temperature Tgpf of the GPF 34 is larger than when the opening and closing body 4 is in the closed state, but the temperature of other parts of the exhaust system becomes lower. Therefore, in order to seek an appropriate compromise between the early completion of the regeneration process and the suppression of the temperature rise of the exhaust system parts, the incremental base value Kb is set to a larger value when the opening and closing body 4 is in the open state than when the opening and closing body 4 is in the closed state.

[0067] The CPU 62 calculates the increment base value Kb to be larger when the ambient temperature Ta is low than when the ambient temperature Ta is high. This is because the amount of heat dissipated from the internal combustion engine 10 is larger when the ambient temperature Ta is low than when the ambient temperature Ta is high.

[0068] exist Figure 5 2 shows an upper limit value TgpfL of the temperature Tgpf of the GPF 34 at which the exhaust system components are within the allowable temperature range.

[0069] exist Figure 5In FIG. 1 , curve cu1 shows the upper limit value TgpfL when the opening and closing body 4 is in the open state. In addition, curve cu2 shows the upper limit value TgpfL when the opening and closing body 4 is in the closed state. Figure 5 As shown, the upper limit value TgpfL when the opening and closing body 4 is in the open state is greater than the upper limit value TgpfL when the opening and closing body 4 is in the closed state. When the ambient temperature Ta is low, the upper limit value TgpfL is greater than when the ambient temperature Ta is high.

[0070] In this embodiment, the Figure 5 The slightly smaller values ​​of the curves cu1 and cu2 shown are set as the target temperature of GPF34 when the opening and closing body 4 is in the open state and when the opening and closing body 4 is in the closed state, respectively. However, in the present embodiment, the target temperature is not included in the calculation parameters processed by the CPU62 in the regeneration process. Instead, the incremental base value Kb is adapted as the open-loop operation amount when the target temperature is set. The target temperature of the present embodiment is variable according to the opening and closing state of the opening and closing body 4 and the ambient temperature Ta. Therefore, the CPU62 not only takes the temperature Tgpf but also the output signal Sb and the ambient temperature Ta as inputs to calculate the feedback correction amount FB to avoid excessively exceeding the target temperature. Here, the output signal Sb and the ambient temperature Ta are variables for grasping the target temperature.

[0071] Figure 4 The processing of S54 shown is a processing in which the CPU 62 performs a mapping operation based on the mapping data stored in the ROM 64. Here, the mapping data includes data dedicated to when the opening and closing body 4 is in the open state and data dedicated to when the opening and closing body 4 is in the closed state. These mapping data are data that use the ambient temperature Ta and the charging efficiency η as input variables and the incremental base value Kb as output variables. Figure 4 In the example, it is stated that when the ambient temperature Ta is the same, the output variable bi when the switch 4 is in the open state is greater than the output variable ci when the switch 4 is in the closed state. Here, i = 1, 2, 3, ... In addition, "ai" represents the value of the ambient temperature Ta as the input variable. In addition, "bi" and "ci" represent the value of the incremental base value Kb as the output variable. It should be noted that in Figure 4 In the figure, the values ​​of the ambient temperature Ta are recorded in ascending order as "a1, a2, a3, ..., an". In addition, it is recorded that the values ​​of the incremental base values ​​Kb corresponding to them, namely "bi" and "ci", have the relationship of "b1>b2>...>bn" and "c1>c2>...>cn".

[0072] It should be noted that mapping data is a data set of discrete values ​​of input variables and values ​​of output variables corresponding to each value of the input variables. In addition, the mapping operation may be set to process the value of the output variable of the corresponding mapping data as the result of the operation when the value of the input variable is consistent with any one of the values ​​of the input variables of the mapping data. In addition, the mapping operation may be set to process the value obtained by interpolating the values ​​of multiple output variables included in the mapping data as the result of the operation when the value of the input variable is inconsistent with the value of the input variable of the mapping data.

[0073] When the CPU 62 completes the processing of S54 or makes a negative determination in the processing of S50, the CPU 62 temporarily terminates the processing. Figure 4 A series of processing is shown.

[0074] Incidentally, when a normal regeneration request is generated by the process of S18, the same process as the process of S36 is performed when the vehicle VC is traveling. However, in this case, the target speed NE* is variably set according to the traveling state of the vehicle VC. In addition, the incremental base value Kb is larger than the value set in the process of S54 when the opening and closing body 4 is in the open state.

[0075] Here, the function and effect of this embodiment will be described.

[0076] The CPU 62 successively calculates the accumulation amount DPM of PM in the GPF 34. When the accumulation amount DPM becomes equal to or greater than the normal regeneration request value DPMH2, the CPU 62 generates a normal regeneration request. Thus, when the vehicle VC is traveling, the regeneration process is executed on the condition that a predetermined condition is satisfied. When the CPU 62 determines that the accumulation amount DPM is equal to or greater than the forced regeneration request value DPMH1 which is greater than the normal regeneration request value DPMH2, the CPU 62 reports this to the user. Thus, the user takes the vehicle VC to a repair shop.

[0077] If a regeneration command is input from the factory-side terminal 100 when the vehicle VC is stopped, the CPU 62 performs a regeneration process for the GPF 34. In the regeneration process here, the temperature of the GPF 34 is controlled to a value lower than the value during driving. Moreover, when the opening and closing body 4 is in a closed state, the CPU 62 sets the incremental base value Kb to a smaller value than when the opening and closing body 4 is in an open state. Thus, when the opening and closing body 4 is in a closed state, the CPU 62 performs control in a manner such that the temperature of the GPF 34 becomes lower than when the opening and closing body 4 is in an open state. Thus, when the heat dissipation of the internal combustion engine 10 is small and the components of the exhaust system are prone to exceed the allowable temperature and rise, it is possible to suppress the temperature of the exhaust system from becoming excessively high.

[0078] According to the present embodiment described above, the following operations and effects can also be obtained.

[0079] (1) The CPU 62 sets the incremental base value Kb to a larger value when the ambient temperature Ta is small than when the ambient temperature Ta is large. When the ambient temperature Ta is small, the heat dissipation of the internal combustion engine 10 becomes larger than when the ambient temperature Ta is large. Therefore, although the temperature of the GPF 34 is increased, the increase in the temperature of the exhaust system components is reduced. Therefore, compared with the case where the incremental base value Kb is set constant regardless of the ambient temperature Ta, the temperature of the exhaust system components can be kept within the allowable range and the time required for the regeneration process of the GPF 34 can be shortened as much as possible.

[0080] (2) The CPU 62 calculates the incremental base value Kb based on the charging efficiency η. The temperature of the exhaust system is determined not only by the incremental coefficient K but also by the operating point of the internal combustion engine 10. Here, the operating point is determined by the rotation speed NE and the load. Therefore, by calculating the incremental base value Kb based on the charging efficiency η as a variable representing the load, the incremental base value Kb can be made into an open loop operation amount with high accuracy when the temperature of the GPF 34 is made the target temperature.

[0081] (3) During the execution of the regeneration process, the CPU 62 displays information related to the deposition amount DPM on the display 90. This allows a person to understand the progress of the regeneration process.

[0082] (4) The CPU 62 displays the time Te required to complete the regeneration process on the display 90. This allows the user to understand the time required to complete the regeneration process. This makes it easy for the user to determine whether to interrupt the regeneration process according to his or her own plan.

[0083] <Second Embodiment>

[0084] The second embodiment will be described below with reference to the accompanying drawings, focusing on the differences from the first embodiment. Figure 1 Side description.

[0085] In the present embodiment, the regeneration process is intermittently performed to suppress the temperature increase of the exhaust system.

[0086] exist Figure 6 2 shows the process steps related to the regeneration of the GPF 34 . Figure 6 The series of processing shown is realized by CPU 62 repeatedly executing the program stored in ROM 64 at a predetermined cycle, for example. Figure 6 In, about Figure 3 For the sake of convenience, the same step numbers are given to corresponding processes shown in the figure.

[0087] exist Figure 6In the series of processes shown, when the CPU 62 executes the process of S36, it increases the execution period counter Cr (S60). The execution period counter Cr is a counter for timing the execution period of the regeneration process that is intermittently executed. When the CPU 62 completes the process of S60, it moves to the process of S38.

[0088] On the other hand, when the CPU 62 makes a negative determination in the process of S42, it determines whether the stop flag F2 is "1" (S62). When the stop flag F2 is "1", it indicates that the regeneration process is temporarily stopped, and when it is "0", it indicates that it is not. It should be noted that at the time point when the process of S34 is executed, the stop flag F2 is set to "0".

[0089] When the CPU 62 determines that the stop flag F2 is "0" (S62: No), it determines whether the execution period counter Cr is consistent with the execution duration Crth (S64). When the CPU 62 determines that the execution period counter Cr is smaller than the execution duration Crth (S64: No), it moves to the processing of S36. On the other hand, when the CPU 62 determines that they are consistent (S64: Yes), it substitutes "1" for the stop flag F2 and initializes the execution period counter Cr (S66).

[0090] On the other hand, when the CPU 62 determines that the stop flag F2 is "1" (S62: Yes), it determines whether the stop period counter Cs is consistent with the stop duration Csth (S68). The stop period counter Cs is a counter that counts the duration of the state in which the regeneration process is temporarily stopped when the execution flag F1 is "1". The stop duration Csth is set to the time for temporarily stopping the regeneration process when the execution flag F1 is "1".

[0091] When the CPU 62 determines that the stop period counter Cs is smaller than the stop duration Csth (S68: No), the CPU 62 increases the stop period counter Cs (S70). On the other hand, when the CPU 62 determines that they are consistent (S68: Yes), the CPU 62 substitutes "0" for the stop flag F2 and initializes the stop period counter Cs (S72).

[0092] It should be noted that, after completing the processing of S66, S70, and S72, the CPU 62 temporarily terminates the processing. Figure 6 A series of processing is shown.

[0093] exist Figure 7 2 shows the process steps related to the setting of the control variables of the forced regeneration process. Figure 7The processing shown is realized by the CPU 62 repeatedly executing the program stored in the ROM 64 at a predetermined cycle, for example. Figure 7 In, about Figure 4 For the sake of convenience, the same step numbers are given to corresponding processes shown in the figure.

[0094] exist Figure 7 In the series of processing shown, when the CPU 62 completes the processing of S52, the opening and closing state of the opening and closing body 4, the ambient temperature Ta and the charging efficiency η are set as inputs to calculate the execution duration Crth and the stop duration Csth (S54a). Here, the CPU 62 calculates the execution duration Crth when the opening and closing body 4 is in the open state as a value greater than the execution duration Crth when the opening and closing body 4 is in the closed state. This is because: when the opening and closing body 4 is in the open state, the heat dissipation of the internal combustion engine 10 is greater than that when the opening and closing body 4 is in the closed state, so the continuous execution time of the regeneration processing that the temperature of the exhaust system may excessively increase becomes longer. In addition, the CPU 62 calculates the execution duration Crth when the ambient temperature Ta is small as a value greater than the execution duration Crth when the ambient temperature Ta is large. This is because: when the ambient temperature Ta is small, the heat dissipation of the internal combustion engine 10 is greater than that when the ambient temperature Ta is large, so the continuous execution time of the regeneration processing that the temperature of the exhaust system may excessively increase becomes longer.

[0095] In detail, the processing of S54a is a processing in which the CPU 62 uses the mapping data stored in the ROM 64 to perform mapping operations on the execution duration Crth and the stop duration Csth. The mapping data here is composed of 4 data. Two of them are data that set the ambient temperature Ta and the charging efficiency η as input variables and the execution duration Crth as output variables. One of these two data is dedicated data when the opening and closing body 4 is in the open state, and the other is dedicated data when the opening and closing body 4 is in the closed state. The remaining two are data that set the ambient temperature Ta and the charging efficiency η as input variables and the stop duration Csth as output variables. One of these two data is dedicated data when the opening and closing body 4 is in the open state, and the other is dedicated data when the opening and closing body 4 is in the closed state.

[0096] exist Figure 7 In the diagram, the relationship between the output variable di indicating the value of the execution duration Crth when the opening and closing body 4 is in the open state and the output variable ei indicating the value of the execution duration Crth when the opening and closing body 4 is in the closed state is described. Figure 4In the embodiment, it is described that, according to the value ai of the ambient temperature Ta, the output variables di and ei representing the value of the execution duration Crth have the relationship of "d1>d2>...>dn" and "e1>e2>...>en". Figure 4 In FIG. 1 , an output variable fi indicating the value of the stop duration time Csth when the opening and closing body 4 is in the open state and an output variable gi indicating the value of the stop duration time Csth when the opening and closing body 4 is in the closed state are described.

[0097] It should be noted that, when the CPU 62 completes the processing of S54a, it temporarily ends the Figure 7 By the way, in the present embodiment, the incremental base value Kb is set to the same value when the opening and closing body 4 is in the open state and when the opening and closing body 4 is in the closed state. That is, it is assumed that the target temperature of the GPF 34 in the regeneration process is controlled to the same temperature when the opening and closing body 4 is in the open state and when the opening and closing body 4 is in the closed state.

[0098] Thus, in the present embodiment, the execution duration Crth and the stop duration Csth are set according to the opening and closing state of the opening and closing body 4. In particular, the CPU 62 calculates the execution duration Crth when the opening and closing body 4 is in the open state as a value greater than the execution duration Crth when the opening and closing body 4 is in the closed state. Thus, the temperature of the exhaust system components can be suppressed from exceeding the allowable range.

[0099] <Third Embodiment>

[0100] The third embodiment will be described below with reference to the accompanying drawings, focusing on the differences from the first embodiment. Figure 1 Side description.

[0101] exist Figure 8 2 shows the process steps related to the setting of the control variables of the forced regeneration process. Figure 8 The processing shown is realized by the CPU 62 repeatedly executing the program stored in the ROM 64 at a predetermined cycle, for example. Figure 8 In, about Figure 7 For the sake of convenience, the same step numbers are given to corresponding processes shown in the figure.

[0102] exist Figure 8In the series of processing shown, when the CPU 62 completes the processing of S52, it sets the opening and closing state of the opening and closing body 4, the ambient temperature Ta and the charging efficiency η as input, and calculates the incremental basic value Kb, the execution duration Crth and the stop duration Csth (S54b). This processing is composed of both the processing of S54 and the processing of S54a. However, in this embodiment, the target temperature of the GPF 34 when the opening and closing body 4 is in the open state is inconsistent with the target temperature when the opening and closing body 4 is in the closed state. Therefore, it is not necessary to make the execution duration Crth when the opening and closing body 4 is in the open state longer than the execution duration Crth when the opening and closing body 4 is in the closed state. It should be noted that when the CPU 62 completes the processing of S54b, it temporarily ends. Figure 8 A series of processing is shown.

[0103] <Correspondence>

[0104] The correspondence between the matters in the above-mentioned embodiment and the matters described in the above-mentioned "Means for Solving the Problem" column is as follows. The correspondence is shown below for each number of the means for solving the problem described in the "Means for Solving the Problem" column. [1] The exhaust gas purification device corresponds to the GPF34. The opening and closing information acquisition process corresponds to the process of S52. The temperature increase process corresponds to the process of S36. The restriction process corresponds to the processes of S54, S54a, and S54b. The process of limiting the heat to a smaller side corresponds to the incremental base value Kb being limited to a small value. [2] The process of limiting the temperature to a low value corresponds to the incremental base value Kb being limited to a small value. This is based on the assumption that the incremental base value Kb is the open-loop operation amount required to make the temperature of GPF34 the target temperature. [3] The ambient temperature acquisition process corresponds to the process of S52. [4] It corresponds to stopping the regeneration process for a period of time having the length of the execution duration Crth after the regeneration process is executed for a period of time having the length of the stop duration Csth. [5] It corresponds to determining the execution duration Crth according to the ambient temperature Ta. [7] The material amount calculation process corresponds to the process of S12. The amount information notification process corresponds to the process of S40. [8] The required time calculation process corresponds to the process of S38. The time information notification process corresponds to the process of S40.

[0105] <Other Embodiments>

[0106] It should be noted that the present embodiment can be implemented by modification as follows. The present embodiment and the following modification examples can be implemented in combination with each other within the scope of no technical contradiction.

[0107] "Regarding Restriction of Processing"

[0108] (a) Regarding intermittent incremental processing

[0109] ·exist Figure 7 In the example of mapping data, the output variables are "d1>d2>...>dn", but the present invention is not limited to this. For example, the relationship between "d2" and "d3" may be limited to "d2=d3", and some output variables may be the same.

[0110] ·exist Figure 7 In the example of mapping data, output variables "e1>e2>...>en" are illustrated, but the present invention is not limited to this. For example, the relationship between "e2" and "e3" may be limited to "e2=e3", and some output variables may be the same.

[0111] ·exist Figure 7 In the process, both the execution duration Crth and the stop duration Csth are variably set according to whether the opening and closing body 4 is in the open state or the closed state. And, when the opening and closing body 4 is in the open state, the execution duration Crth is set to a larger value than when the opening and closing body 4 is in the closed state. However, instead of this, for example, when the opening and closing body 4 is in the closed state, the stop duration Csth can be set to a larger value than when the opening and closing body 4 is in the open state. As a result, when the opening and closing body 4 is in the closed state, the heat dissipation period accompanying the stop of the regeneration process can be extended compared with when the opening and closing body 4 is in the open state.

[0112] It is not necessary to variably set both the execution duration Crth and the stop duration Csth according to whether the opening and closing body 4 is in the open state or the closed state. For example, only the execution duration Crth may be variably set according to whether the opening and closing body 4 is in the open state or the closed state. In addition, for example, only the stop duration Csth may be variably set according to whether the opening and closing body 4 is in the open state or the closed state.

[0113] The input variables for calculating the execution duration Crth are not limited to the variable indicating the open / closed state, the ambient temperature Ta, and the charging efficiency η as a variable indicating the load. For example, the basic injection amount Qb may be used as a variable indicating the load. In addition, for example, if the target speed NE* during the regeneration process can take multiple values, the speed may be included in the input variables.

[0114] It is not essential that the input variables for calculating the execution duration Crth include three variables: a variable indicating the switch state, the ambient temperature Ta, and a variable indicating the load. For example, the input variables may include only a variable indicating the switch state.

[0115] The input variables for calculating the stop duration Csth are not limited to the variable indicating the open / closed state, the ambient temperature Ta, and the charging efficiency η as a variable indicating the load. For example, the basic injection amount Qb may be used as a variable indicating the load. In addition, for example, if the target speed NE* during the regeneration process can take multiple values, the speed may be included in the input variables.

[0116] It is not essential that the input variables for calculating the stop duration Csth include three variables: a variable indicating the switch state, the ambient temperature Ta, and a variable indicating the load. For example, the input variables may include only a variable indicating the switch state.

[0117] (b) Regarding the incremental base value Kb

[0118] ·exist Figure 4 In the example of mapping data, the output variables are "b1>b2>...>bn", but the present invention is not limited to this. For example, the relationship between "b2" and "b3" may be limited to "b2=b3", and some output variables may be the same.

[0119] ·exist Figure 4 In the example of mapping data, the output variables are "c1>c2>...>cn", but the present invention is not limited to this. For example, the relationship between "c2" and "c3" may be limited to "c2=c3", and some output variables may be the same.

[0120] In the above embodiment, as the mapping data with the incremental base value Kb as the output variable, there are two data, namely, mapping data when the opening and closing body 4 is in the open state and mapping data when the opening and closing body 4 is in the closed state, but the invention is not limited thereto. For example, there may be mapping data for calculating the incremental base value Kb when the opening and closing body 4 is in the closed state and mapping data for performing mapping calculation on the correction amount for increasing and correcting the incremental base value Kb. It should be noted that the incremental correction is performed when the opening and closing body 4 is in the open state.

[0121] The input variables for calculating the incremental base value Kb are not limited to the variable indicating the open / closed state, the ambient temperature Ta, and the charging efficiency η as a variable indicating the load. For example, the basic injection amount Qb may be used as a variable indicating the load. In addition, for example, if the target speed NE* during the regeneration process can take multiple values, the speed may be included in the input variable.

[0122] It is not essential that the input variables for calculating the incremental base value Kb include three variables: a variable indicating the switch state, the ambient temperature Ta, and a variable indicating the load. For example, the input variables may include only the variable indicating the switch state.

[0123] The calculation process of the incremental basic value Kb is not limited to the process of using the variable indicating the opening and closing state, the variable indicating the load, and the rotation speed NE as inputs. For example, the target temperature of the GPF 34 may be included in the input variable. Here, the target temperature may be set to a larger value when the opening and closing body 4 is in the open state than when the opening and closing body 4 is in the closed state. In addition, the target temperature may be set to a larger value when the ambient temperature Ta is low than when the ambient temperature Ta is high.

[0124] "About ambient temperature Ta"

[0125] In the above embodiment, the ambient temperature sensor 86 is provided in the accommodation chamber 2 , but the present invention is not limited thereto. In addition, for example, the sensor for detecting the ambient temperature may be replaced by a sensor for detecting the intake air temperature of the internal combustion engine 10 .

[0126] "About volume information notification processing"

[0127] In the above embodiment, the visual information related to the accumulation amount DPM is displayed on the display 90 mounted on the vehicle, but the present invention is not limited thereto. For example, it may be displayed on a display device installed in a repair shop. In addition, for example, it may be displayed on a mobile terminal of an operator or a mobile terminal of a user. In these cases, a communication device is provided in the control device 60, and the amount information notification process executed by the CPU 62 becomes a process of operating the communication device to output the visual information.

[0128] In the above embodiment, the deposition amount DPM is calculated sequentially and displayed on the display 90, but the present invention is not limited to this. For example, the deposition amount DPM may be displayed only when there is a request.

[0129] In the above embodiment, the deposition amount DPM is notified as visual information, but the present invention is not limited to this and may be notified as auditory information, for example.

[0130] "About time information calculation processing"

[0131] The variables used in calculating the required end time Te are not limited to the variables exemplified in the above embodiment. For example, when the rotation speed NE is controlled to a predetermined value as in the above embodiment, the charging efficiency η may be used instead of the intake air amount Ga. In addition, for example, the detection value of the air-fuel ratio sensor provided on the upstream side of the GPF 34 may be used instead of the increment coefficient.

[0132] "About time information notification processing"

[0133] In the above embodiment, the visual information related to the required time Te for completion is displayed on the display 90 mounted on the vehicle, but the present invention is not limited thereto. For example, the visual information may be displayed on a display device installed at a repair shop and sales store. In addition, for example, the visual information may be displayed on a mobile terminal of an operator or a mobile terminal of a user. In these cases, a communication device is provided in the control device 60, and the time information notification process executed by the CPU 62 becomes a process of operating the communication device to output the visual information.

[0134] In the above embodiment, the required time Te for completion is calculated sequentially and displayed on the display 90, but the present invention is not limited to this. For example, it may be displayed only when there is a request.

[0135] In the above embodiment, the required time Te for completion is notified as visual information, but the present invention is not limited to this. For example, it may be notified as auditory information.

[0136] "Conditions for executing the temperature increase treatment"

[0137] The input of the regeneration command as the execution condition of the temperature increase process is not limited to the input from the factory-side terminal 100 in a state where the factory-side terminal 100 is connected to the control device 60. For example, a combination of predetermined operations of components operated by a user in the vehicle VC may be used as the input of the regeneration command. However, in this case, the combination is set to a combination that does not occur during normal driving.

[0138] The execution conditions of the temperature raising process may include a condition that the gear position is parked instead of the condition that the vehicle speed is zero. However, both the condition that the vehicle speed is zero and the condition that the gear position is parked may be included.

[0139] "About temperature treatment"

[0140] It is not essential to periodically change the cylinder to which the fuel supply is stopped.

[0141] It is not essential to set the number of cylinders to which fuel supply is stopped to 1. For example, it may be 2 cylinders. It should be noted that, when the number of cylinders of the internal combustion engine is large (e.g., 8), the number of cylinders to which fuel supply is stopped may be 3 or more.

[0142] The method for increasing the temperature of the GPF 34 is not limited to stopping the supply of fuel to some cylinders and making the air-fuel ratio of the mixture in the remaining cylinders richer than the theoretical air-fuel ratio. For example, it may be a control to reduce the combustion efficiency by retarding the ignition timing, etc., so as to increase the exhaust temperature. In addition, for example, it may be a dither control process to make the air-fuel ratio of the mixture in some cylinders leaner than the theoretical air-fuel ratio and make the air-fuel ratio of the mixture in the remaining cylinders richer than the theoretical air-fuel ratio.

[0143] About the Control Device

[0144] ·The control device is not limited to having a CPU 62 and a ROM 64 and executing software processing. For example, it may also be provided with a dedicated hardware circuit such as an ASIC that performs hardware processing on at least a part of the software processing in the above-mentioned embodiment. That is, the control device may be any of the following structures (a) to (c). (a) It has a processing device that executes all of the above-mentioned processing according to a program and a program storage device such as a ROM that stores the program. (b) It has a processing device that executes a part of the above-mentioned processing according to a program, a program storage device, and a dedicated hardware circuit that executes the remaining processing. (c) It has a dedicated hardware circuit that executes all of the above-mentioned processing. Here, the software execution device and the dedicated hardware circuit that have the processing device and the program storage device may be multiple.

Claims

1. A vehicle control device, applied to a vehicle having an internal combustion engine and a sensor for detecting an open / closed state of an opening / closing body for opening and closing an opening of a storage chamber for storing the internal combustion engine, The internal combustion engine is provided with an exhaust gas purification device for purifying exhaust gas, The vehicle control device performs: Opening and closing information acquisition processing, acquiring the detection result of the sensor; A temperature raising process for raising the temperature of the exhaust gas purification device when the vehicle stops traveling; and A limiting process is performed to limit the amount of heat generated per unit time in the internal combustion engine by the temperature increase process to a smaller side when the opening and closing body is in a closed state compared to when the opening and closing body is in an open state, The temperature raising process is a process of intermittently increasing the thermal energy supplied to the exhaust system of the internal combustion engine. The limiting process includes limiting a time for executing one time of a process of increasing the thermal energy supplied to the exhaust system to a shorter value when the opening and closing body is in a closed state than when the opening and closing body is in an open state.

2. The vehicle control device according to claim 1, The limiting process includes a process of limiting the temperature of the exhaust gas purification device to a lower value when the opening and closing body is in a closed state than when the opening and closing body is in an open state.

3. The vehicle control device according to claim 2, Execute an ambient temperature acquisition process for acquiring the ambient temperature, The limiting process includes limiting the temperature of the exhaust purification device to a low value according to the ambient temperature so that the temperature of the exhaust purification device when the ambient temperature is high is equal to or less than the temperature of the exhaust purification device when the ambient temperature is low.

4. The vehicle control device according to claim 1, Execute an ambient temperature acquisition process for acquiring the ambient temperature, The limiting process includes a process of limiting the execution time to a short value according to the ambient temperature so that the execution time when the ambient temperature is high is equal to or smaller than the execution time when the ambient temperature is low.

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