JP6171685B2 - Vehicle control device with idle stop function - Google Patents

Description

  The present invention relates to a control device applied to a vehicle having an idle stop function for automatically stopping an engine.

  Conventionally, there is a vehicle provided with a switch for prohibiting the idle stop function for a vehicle having an idle stop function for automatically stopping the engine (see Patent Document 1). According to the technique described in Patent Document 1, the idle stop function prohibition is continued and canceled depending on the number of times and the time of pressing the switch that prohibits the idle stop function, so that the idle stop control accurately reflects the driver's intention. Is realized.

JP 2012-127315 A

  However, in the thing of patent document 1, since the switch which prohibits an idle stop function is provided in addition to the switch generally provided in a vehicle, there exists a concern about the increase in the cost in manufacture of a vehicle.

  The present invention has been made to solve the above-described problems, and its object is to provide idle stop control that accurately reflects the driver's intention while suppressing an increase in cost in a vehicle having an idle stop function. It is to be realized.

  Hereinafter, means for solving the above-described problems and the operation and effects thereof will be described.

  The present invention is a control device applied to a vehicle having an idle stop function for automatically stopping an engine, and is predetermined for a switch for controlling a predetermined function of the vehicle different from the function for prohibiting the idle stop function. When the above operation is performed, the idle stop function is prohibited.

  According to the above configuration, the idle stop function can be prohibited using the switch that controls the predetermined function of the vehicle. Therefore, a function for prohibiting the idle stop function can be realized without providing a switch having only a function for prohibiting the idle stop function, and thus an increase in cost at the time of vehicle manufacture can be suppressed.

The block diagram which shows the outline of a system. The flowchart which shows the process sequence of 1st Embodiment. The flowchart which shows the process sequence of 2nd Embodiment. The flowchart which shows the process sequence of 3rd Embodiment. The flowchart which shows the process sequence of 4th Embodiment.

  Hereinafter, each embodiment will be described with reference to the drawings.

(First embodiment)
The vehicle according to the present embodiment is a vehicle that uses an engine as a travel drive source, and automatically stops the engine when a predetermined automatic stop condition is satisfied, and automatically restarts the engine when the predetermined automatic restart condition is satisfied. It has an idle stop function for starting.

  As shown in FIG. 1, the vehicle includes an engine 10, an engine electronic control device 20 (hereinafter referred to as “engine ECU 20”), an idle stop electronic control device 30 (hereinafter referred to as “idle stop ECU 30”), and Various sensors 40 are provided. In addition, an air conditioner is mounted on the vehicle, and a switch 50 (hereinafter referred to as “A / C switch 50”) for switching between an ON state and an OFF state of the air conditioner by a pressing operation is provided.

  The engine ECU 20 performs a calculation based on the sensor information from the various sensors 40 and the input information from the driver, and outputs an injection / ignition / intake control signal to the engine 10 based on the calculation result. Further, the engine ECU 20 outputs sensor information and input information to the idle stop ECU 30.

  The idle stop ECU 30 determines whether or not a predetermined automatic stop condition is satisfied based on the sensor information and input information input from the engine ECU 20, and if the predetermined automatic stop condition is satisfied, the engine stop signal is sent to the engine ECU 20. Send. Further, the idle stop ECU 30 determines whether or not a predetermined automatic restart condition is satisfied based on the sensor information and input information input from the engine ECU 20, and when the predetermined automatic restart condition is satisfied, the engine ECU 20 An engine start signal is transmitted to. Further, when a predetermined input operation is performed, the idle stop ECU 30 shifts to an idle stop function prohibited state in which the idle stop function is prohibited even when a predetermined automatic stop condition is satisfied.

  Next, idle stop function prohibition control executed by the idle stop ECU 30 at a predetermined cycle will be described with reference to the flowchart of FIG.

  The idle stop ECU 30 first determines whether or not the idle stop function is prohibited (S101). In the present embodiment, as the predetermined input operation, an operation of pressing the A / C switch 50 four times within 5 seconds is employed. For example, when the air conditioner is in an OFF state before the operation, the A / C switch 50 is changed to ON state → OFF state → ON state → OFF state by four press operations.

  If it is determined in S101 that the idle stop function is not prohibited (S101: NO), it is determined whether or not a predetermined input operation has been performed on the A / C switch 50 (S102).

  If it is determined in S102 that a predetermined input operation has been performed on the A / C switch 50 (S102: YES), integration of the idle stop function return counter is started (S103), and the idle stop function disabled state is entered. The process proceeds (S104), and the series of processes is temporarily terminated.

  If it is determined in S102 that a predetermined input operation has not been performed on the A / C switch 50 (S102: NO), the series of processing ends.

  On the other hand, if it is determined in S101 that the idle stop function is prohibited (S101: YES), an addition is made to the idle stop function return counter (S105), and the integrated value of the idle stop function return counter reaches a predetermined value A. It is determined whether or not it has been exceeded (S106).

  If it is determined in S106 that the integrated value of the idle stop function return counter exceeds the predetermined value A (S106: YES), the integrated value of the idle stop function return counter is reset (S107), and the idle stop function disabled state is set. Release (S108), and the series of processing ends.

  If it is determined in S106 that the integrated value of the idle stop function return counter does not exceed the predetermined value A (S106: NO), the idle stop function prohibition state is continued and the series of processes is temporarily ended.

  As described above, in the present embodiment, since the A / C switch 50 is used to shift to the idle stop function prohibited state, it is not necessary to provide a switch having only the function to shift to the idle stop function prohibited state, and the vehicle manufacturing cost is reduced. Can be suppressed.

  Further, since the switching operation between the ON state and the OFF state is usually performed only once when switching the switch state, the switching operation between the ON state and the OFF state is repeated a predetermined number of times. By setting it as a condition, malfunction can be prevented.

  Here, when the predetermined number of times is two, an operation that can be executed in a normal operation of performing an OFF operation on an erroneously ON operation is also included. In addition, when the predetermined number is an odd number of 3 or more, the air conditioner shifts from the ON state to the OFF state and from the OFF state to the ON state when an operation for shifting to the idle stop function prohibited state is performed. Therefore, an operation for returning to the original state is required.

  Therefore, if the predetermined number of times is an even number of 4 or more, the operation is not performed in the normal operation, and the idle stop function disabled state is performed when an operation for shifting to the idle stop function disabled state is performed. It is possible to maintain the original state for a function different from the function to be transferred to.

  Note that even if an operation for switching the air conditioner between the ON state and the OFF state is performed, the driver's field of view and surrounding vehicles are not affected. Therefore, the A / C switch 50 shifts to the idle stop function prohibited state. It is convenient to have a function.

(Second Embodiment)
This embodiment is different from the first embodiment in that the idle stop function return counter is not provided, and the idle stop function prohibition state is canceled by re-operation of the A / C switch 50. Further, in the present embodiment, as the predetermined input operation, an operation in which the A / C switch 50 is pressed twice within 5 seconds and continued for 2 seconds as the second pressing operation is adopted. . Note that the second pressing operation may be started within 5 seconds after the first pressing operation is performed, and it continues for 2 seconds within 5 seconds after the first pressing operation is performed. In addition, the second pressing operation may be completed as a condition.

  Hereinafter, the present embodiment will be described with reference to the flowchart of FIG. This series of processing is repeatedly executed by the idle stop ECU 30 at a predetermined cycle.

  First, it is determined whether or not the idle stop function is prohibited (S201).

  In the determination of S201, it is determined that the idle stop function is not prohibited (S201: NO), and in the determination of S202, it is determined that a predetermined input operation has been performed on the A / C switch 50 (S202: YES). A transition is made to the idle stop function prohibition state (S204), and the series of processes is temporarily terminated.

  On the other hand, in the determination of S201, it is determined that the idle stop function is prohibited (S201: YES), and in the determination of S203, it is determined that a predetermined input operation has been performed on the A / C switch 50 (S203). : YES), the idle stop function prohibition state is canceled (S205), and the series of processes is temporarily terminated.

  In the determination of S202, when it is determined that a predetermined input operation has not been performed on the A / C switch 50 (S202: NO), and in the determination of S203, When it is determined that a predetermined input operation has not been performed (S203: NO), the series of processes is temporarily terminated as it is.

  As described above, in the present embodiment, the idle stop function prohibited state is canceled by re-operation of the A / C switch 50, and therefore the idle stop function prohibited state can be canceled at any timing of the driver.

  Here, the A / C switch 50 that accepts the pressing operation is maintained for a predetermined time, and the A / C switch 50 that switches between the ON state and the OFF state is operated a predetermined number of times. This is considered as an erroneous operation.

  Therefore, as in this embodiment, a combination of an operation in which the pressing operation is maintained for a predetermined time and an operation in which switching between the ON state and the OFF state is repeated a predetermined number of times, By switching the number of times to a predetermined even number of times and making the last ON operation or OFF operation at an even number of times equal to or more than two to maintain a pressed state for a certain time, it is possible to further prevent erroneous operations. It becomes possible.

(Third embodiment)
In the present embodiment, the release condition in the first embodiment and the release condition in the second embodiment are used together as the release condition of the idle stop function prohibited state. In the present embodiment, a blower switch 60 for adjusting the air volume of the air conditioner by a switching operation is employed as a switch for shifting to the idle stop function prohibited state (see the broken line portion in FIG. 1). As an input operation, an operation of switching the blower switch 60 four times within 5 seconds is adopted.

  Hereinafter, the present embodiment will be described with reference to the flowchart of FIG. This series of processing is repeatedly executed by the idle stop ECU 30 at a predetermined cycle.

  First, it is determined whether or not the idle stop function is prohibited (S301).

  If it is determined in S301 that the idle stop function is not prohibited (S301: NO), it is determined whether a predetermined input operation has been performed on the blower switch 60 (S302).

  If it is determined in S302 that a predetermined input operation has been performed on the blower switch 60 (S302: YES), the integration of the idle stop function return counter is started (S304), and the state shifts to the idle stop function disabled state. (S305), and a series of processing is once ended.

  On the other hand, if it is determined in S302 that a predetermined input operation has not been performed on the blower switch 60 (S302: NO), the series of processes is temporarily terminated.

  If it is determined in S301 that the idle stop function is prohibited (S301: YES), it is determined whether or not a predetermined input operation has been performed on the blower switch 60 (S303).

  If it is determined in S303 that a predetermined input operation has been performed on the blower switch 60 (S303: YES), the integrated value of the idle stop function return counter is reset (S308), and the idle stop function disabled state is canceled. (S309), and a series of processing is once ended.

  On the other hand, if it is determined in S303 that the predetermined input operation has not been performed on the blower switch 60 (S303: NO), the idle stop function return counter is added (S306), and the idle stop function return counter is added. It is determined whether or not the integrated value exceeds a predetermined value A (S307).

  When it is determined in S307 that the integrated value of the idle stop function return counter does not exceed the predetermined value A (S307: NO), the idle stop function prohibited state is continued. On the other hand, when it is determined in S307 that the integrated value of the idle stop function return counter exceeds the predetermined value A (S307: YES), the integrated value of the idle stop function return counter is reset (S308), and the idle stop function is reset. The function prohibition state is canceled (S309), and a series of processing is once ended.

  As described above, in this embodiment, the idle stop function prohibition state is canceled by re-operating the blower switch 60, and therefore, the idle stop function prohibition state can be canceled at any timing of the driver. Further, since the idle stop function prohibition state is canceled even when the integrated value of the idle stop function return counter exceeds the predetermined value A, it is possible to prevent forgetting to cancel the idle stop function prohibition state.

(Fourth embodiment)
In the present embodiment, unlike the above-described embodiments, as a predetermined input operation for shifting to the idle stop function prohibited state, an operation of pressing the A / C switch 50 four times within 5 seconds; An operation of switching the blower switch 60 four times within 5 seconds is also used.

  Hereinafter, the present embodiment will be described with reference to the flowchart of FIG. This series of processing is repeatedly executed by the idle stop ECU 30 at a predetermined cycle.

  First, it is determined whether or not the idle stop function is prohibited (S401).

  If it is determined in S401 that the idle stop function is not prohibited (S401: NO), it is determined whether or not the idle stop function is prohibited (S402).

  If it is determined in S402 that the idle stop function prohibition preparation state is not set (S402: NO), it is determined whether or not a predetermined input operation has been performed on the blower switch 60 (S403).

  If it is determined in S403 that a predetermined input operation has been performed on the blower switch 60 (S403: YES), integration of the idle stop function prohibition preparation counter is started (S404), and the idle stop function prohibition ready state is entered. The process proceeds (S405), and the series of processes is temporarily terminated.

  If it is determined in S403 that a predetermined input operation has not been performed on the blower switch 60 (S403: NO), the series of processes is temporarily terminated.

  On the other hand, if it is determined in S402 that the idle stop function prohibition preparation state is set (S402: YES), it is determined whether or not a predetermined input operation has been performed on the A / C switch 50 (S406).

  If it is determined in S406 that a predetermined input operation has been performed on the A / C switch 50 (S406: YES), the idle stop function prohibition preparation counter is reset (S407), and integration of the idle stop function return counter is started. (S408), and shifts to the idle stop function prohibited state (S409).

  If it is determined in S406 that the predetermined input operation to the A / C switch 50 has not been performed (S406: NO), an addition is made to the integrated value of the idle stop function prohibition preparation counter (S410), and the idle stop function It is determined whether or not the integrated value of the prohibition preparation counter exceeds a predetermined value B (S411).

  If it is determined in S411 that the integrated value of the idle stop function prohibition preparation counter does not exceed the predetermined value B (S411: NO), the idle stop function prohibition preparation state is continued. On the other hand, if it is determined in S411 that the integrated value of the idle stop function prohibition preparation counter exceeds the predetermined value B (S411: YES), the integrated value of the idle stop function prohibition preparation counter is reset (S412), The idle stop function prohibition preparation state is canceled (S413), and a series of processes is temporarily ended.

  If it is determined that the idle stop function is prohibited (S401: YES), it is determined whether a predetermined input operation has been performed on the A / C switch 50 (S414).

  If it is determined in S414 that a predetermined input operation has been performed on the A / C switch 50 (S414: YES), the integrated value of the idle stop function return counter is reset (S417), and the idle stop function disabled state is released. (S418), and a series of processing is once ended.

  If it is determined in S414 that the predetermined input operation to the A / C switch 50 has not been performed (S414: NO), the integrated value of the idle stop function return counter is added (S415) to return to the idle stop function. It is determined whether or not the integrated value of the counter exceeds a predetermined value A (S416).

  If it is determined in S416 that the integrated value of the idle stop function return counter does not exceed the predetermined value A (S416: NO), the idle stop function prohibited state is continued. On the other hand, if it is determined in S416 that the integrated value of the idle stop function return counter exceeds the predetermined value A (S416: YES), the integrated value of the idle stop function return counter is reset (S417), and the idle stop function is reset. The function prohibition state is canceled (S418), and the series of processes is temporarily terminated.

  As described above, in the present embodiment, the idle stop function prohibition ready state is shifted by a predetermined input operation on the blower switch 60, and the idle stop function prohibited state is shifted by a predetermined input operation on the A / C switch 50. It is possible to prevent a shift to the idle stop function prohibited state due to an erroneous operation. In other words, when a predetermined operation is accepted for one switch, an erroneous operation may occur. Therefore, an operation that prohibits the idle stop function can be performed by combining the operations for a plurality of switches. The determination accuracy can be improved.

  Furthermore, when the idle stop function prohibition ready state continues to be maintained, an erroneous operation of the A / C switch 50 may cause a transition to the idle stop function prohibited state. Therefore, in this embodiment, when the idle stop function prohibition preparation counter exceeds the predetermined value B, the idle stop function prohibition preparation state is canceled, so that a predetermined input operation to the blower switch 60 and an A / C switch 50 are performed. It is necessary to perform predetermined input operations continuously, and it is possible to further prevent erroneous operations.

(Other embodiments)
The present invention is not limited to the above embodiments, and may be implemented as follows, for example.

  In the fourth embodiment, the operations of two switches are combined, but the operations of three or more switches may be combined. Further, when returning from the idle stop function prohibition state, the operation of one switch is used, but the operation of two or more switches may be combined.

  In the fourth embodiment, the switch for shifting to the idle stop function prohibition preparation state and the switch for shifting to the idle stop function prohibition state are different switches. However, one switch may have both functions. That is, when a predetermined input operation is performed on one switch, the state is shifted to the idle stop function prohibition ready state, and when a predetermined input operation is performed on the same switch, the idle stop function is disabled. It may be migrated. At this time, the predetermined input operation may be the same operation or different operations.

  In the second to fourth embodiments, the switch for shifting to the idle stop function prohibited state and the switch for releasing the idle stop function prohibited state are the same switch, but they may be different switches. Further, although the operation for shifting to the idle stop function prohibited state and the operation for returning from the idle stop function prohibited state are the same operation, they may be different operations.

  In each of the above embodiments, it is determined whether or not a predetermined input operation has been performed after determining whether or not the idle stop function is prohibited, but it is determined whether or not a predetermined input operation has been performed. After performing the above, it may be determined whether or not the idle stop function is prohibited.

  In each of the above embodiments, a predetermined input operation condition is that a series of operations are performed within 5 seconds. However, the time for receiving an input is not limited to 5 seconds and can be changed as appropriate. Moreover, in the said 2nd Embodiment, although pressing operation continues on the conditions for 2 second, it is not necessarily limited to 2 seconds, It can change suitably.

  In each of the above embodiments, since a predetermined input operation is determined based on the number of switching between the ON state and the OFF state, the switching operation may start from either the ON operation or the OFF operation.

  In each of the above embodiments, the A / C switch 50 and / or the blower switch 60 are employed, but the present invention is not limited to the above switches, and a headlight switch, a wiper switch, a cruise switch, or the like can be employed. It is.

  In each of the above embodiments, the switching operation between the ON state and the OFF state in the predetermined input operation for shifting to and canceling the idle stop function prohibited state is an even number of times, but the present invention is not limited to this. For example, in the case of an odd number of times of 3 or more, it is possible to switch the ON state and OFF state of the predetermined function simultaneously with the transition to the idle stop function prohibited state and the return from the idle stop function prohibited state.

  DESCRIPTION OF SYMBOLS 10 ... Engine, 20 ... Engine ECU, 30 ... Idle stop ECU, 40 ... Various sensors, 50 ... A / C switch, 60 ... Blower switch.

Claims (7)

A control device (30) applied to a vehicle having an idle stop function for automatically stopping an engine (10),
When the first predetermined operation is performed on the switches (50, 60) for controlling the predetermined function of the vehicle different from the function for prohibiting the idle stop function, the idle stop function is prohibited,
When the idle stop function is prohibited and the switch (50, 60) is subjected to a second predetermined operation, the idle stop function is canceled.
The first predetermined operation and at least one of the operations of the second predetermined operation, after the operation, the control device, characterized in that the state of the predetermined function is an operation to maintain the original state before the operation ( 30). The switch (50, 60) is a switch for switching an ON state and an OFF state of the predetermined function,
2. The control device according to claim 1, wherein at least one of the first predetermined operation and the second predetermined operation is an operation in which switching between the ON state and the OFF state of the switch is repeated an even number of times within a predetermined time. . The even number is the 4 or more times, the control device according to claim 2, wherein (30). The switch (50) is a switch for switching an ON state and an OFF state of the predetermined function by accepting a pressing operation.
At least one of the first predetermined operation and the second predetermined operation repeats an operation for switching between the ON state and the OFF state within a predetermined time and repeats an even number of times, and the last operation at the predetermined even number of times The control device (30) according to claim 1, wherein the ON operation or the OFF operation is an operation for maintaining the pressed state for a predetermined time. The control device (1) according to any one of claims 1 to 4, wherein the switches (50, 60) are a plurality of switches, and the first predetermined operation is an operation obtained by combining operations of the plurality of switches. 30). The switches are a first switch (50) and a second switch (60),
Wherein it is shifted to the prohibition ready for idle stop function when the relative first switch first predetermined operation is performed, in the prohibition preparation state, the first switch (50) different from the second and The control device (30) according to any one of claims 2 to 4 , wherein the idle stop function is prohibited when the first predetermined operation is performed on the switch. The vehicle is equipped with an air conditioner;
The control device (30) according to any one of claims 1 to 6 , wherein the switch includes an A / C switch (50) for switching between an ON state and an OFF state of the air conditioner.

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