JP6695289B2 - Internal combustion engine controller - Google Patents

Description

  The present invention relates to an internal combustion engine control device applied to a saddle type vehicle such as a motorcycle.

  In recent years, straddle-type vehicles such as motorcycles calculate a target control amount of a throttle opening according to an accelerator opening, and use an electronically controlled throttle device or the like so that the throttle opening control amount matches the target control amount. By performing feedback control of the controlled object, output control of the engine according to the driver's request is performed.

  In such engine output control, if the accelerator opening is directly reflected in the engine output control, the engine output may suddenly change against the driver's will, resulting in an engine output not intended by the driver. Be done. For example, when the motorcycle is running on a rough road and the driver unintentionally operates the accelerator operation member due to the influence of vibration, the accelerator opening changes and the engine output that the driver does not intend is output. May occur.

  From such a background, in order to suppress the uncomfortable feeling that the driver feels uncomfortable due to an unintended engine output, a value obtained by correcting the accelerator opening is calculated as the control accelerator opening, and the calculated control opening is calculated. Techniques have been proposed for controlling the engine output based on the accelerator opening.

  In Patent Document 1, the engine output region is determined by referring to the data of a predetermined map that defines the relationship between the accelerator opening and the engine speed, and the control accelerator opening is calculated based on this determination result. Disclosed is an engine output control device that controls an engine output.

JP, 2014-015889, A

  However, according to a study by the present inventor, when a driver of a saddle-ride type vehicle tries to travel at a constant speed while keeping the accelerator opening at a constant opening, driving is performed due to road surface conditions, driver fatigue, or the like. The accelerator opening required by the person may change. At this time, the driver adjusts the accelerator opening by operating the throttle at a timing when he / she notices that the vehicle speed of the saddle riding type vehicle is decreasing or increasing. Therefore, stable driving cannot be realized, and the throttle is sensitively operated, which causes deterioration of fuel consumption and deterioration of emission performance. On the other hand, when the engine output is controlled by accelerating the accelerator opening in order to prevent such a fine adjustment of the throttle, the driving performance during normal traveling is deteriorated.

  The present invention has been made through the above studies, and it is possible to realize stable running according to the driver's wishes without deteriorating driving performance, and prevent deterioration of fuel consumption and deterioration of emission performance. It is an object of the present invention to provide an internal combustion engine control device that can be used.

In order to achieve the above object, the present invention is, in a first aspect, an internal combustion engine control device which is mounted on a saddle riding type vehicle and has a control unit for controlling a throttle opening of an engine of the saddle riding type vehicle, The control unit is configured such that the throttle opening is equal to or larger than a predetermined opening, the fluctuation range of the accelerator opening of the straddle-type vehicle is within a predetermined range, and the fluctuation range of the engine speed is within a predetermined range. When the first condition that the fluctuation range of the speed of the saddle riding type vehicle is within a predetermined range is satisfied, the first throttle opening that is the throttle opening at the timing when the first condition is satisfied. The internal combustion engine control device controls the throttle opening so that the throttle opening is achieved.

According to the present invention, in addition to the first aspect, the control unit includes a required target throttle opening degree calculated according to the accelerator opening degree and the first When the deviation between the throttle opening and the throttle opening exceeds a predetermined deviation, merge processing is executed for the first throttle opening so that the throttle opening follows the required target throttle opening. After the control, and after the second condition that the throttle opening has reached the required target throttle opening, the second throttle that is the throttle opening at the timing when the second condition is satisfied A second aspect is to control the throttle opening so that the opening is achieved.

  In the present invention, in addition to the first or second aspect, in the case where the fluctuation range of the accelerator opening becomes larger than the predetermined width when the first condition is satisfied, The third aspect is to control the throttle opening according to the accelerator opening.

In the internal combustion engine control device according to the first aspect of the present invention, in the internal combustion engine control device which is mounted on a saddle-ride type vehicle and has a control part for controlling the throttle opening of the engine of the saddle-ride type vehicle, the control part is The throttle opening is equal to or larger than a predetermined opening, the fluctuation range of the accelerator opening of the saddle type vehicle is within a predetermined range, the fluctuation range of the engine speed is within the predetermined range, and the saddle type vehicle is When the first condition that the variation range of the speed of the vehicle is within the predetermined range is satisfied, the throttle opening is adjusted so that the first throttle opening is the throttle opening at the timing when the first condition is satisfied. Since the vehicle speed is controlled, it is possible to realize stable traveling according to the driver's desire without deteriorating the driving performance, and it is possible to prevent deterioration of fuel consumption and deterioration of emission performance.

Further, according to the internal combustion engine control device of the second aspect of the present invention, the control unit sets the required target throttle opening degree calculated according to the accelerator opening degree when the first condition is satisfied. If the deviation between the first throttle opening and the first throttle opening is greater than or equal to a predetermined deviation, merge processing is executed for the first throttle opening so that the throttle opening follows the required target throttle opening. After the control, and after the second condition that the throttle opening has reached the required target throttle opening is satisfied, the second throttle opening is the throttle opening at the timing when the second condition is satisfied. As described above, since the throttle opening is controlled, it is possible to prevent the engine output from changing suddenly against the driver's will.

  Further, according to the internal combustion engine control device of the third aspect of the present invention, when the control unit determines that the fluctuation range of the accelerator opening becomes larger than the predetermined range when the first condition is satisfied, Since the throttle opening is controlled according to the accelerator opening, deceleration becomes impossible when the accelerator opening changes in the decreasing direction, and acceleration becomes impossible when the accelerator opening changes in the increasing direction. It is possible to prevent this, and to prevent deterioration of driving performance.

FIG. 1 is a block diagram showing the configuration of an internal combustion engine controller according to an embodiment of the present invention. FIG. 2 is a flow chart showing a flow of throttle opening control processing in the embodiment of the present invention. FIG. 3 is a flow chart showing a flow of execution condition determination processing in the embodiment of the present invention. FIG. 4 is a diagram showing changes in the throttle opening and the required target throttle opening in the embodiment of the present invention.

  Hereinafter, an internal combustion engine control device according to an embodiment of the present invention will be described in detail with reference to the drawings as appropriate.

<Configuration of internal combustion engine control device>
First, the configuration of the internal combustion engine control device according to the present embodiment will be described in detail with reference to FIG.

  FIG. 1 is a block diagram showing the configuration of an internal combustion engine controller according to an embodiment of the present invention.

  As shown in FIG. 1, an internal combustion engine control device S in the present embodiment is mounted on a saddle-ride type vehicle (not shown), typically a motorcycle, and includes an ECU (Electronic Control Unit) 1. The ECU 1 is a control device that is mounted on a saddle-ride type vehicle and operates using electric power supplied from a battery (not shown), and is capable of controlling various components of the saddle-ride type vehicle, such as a memory (not shown). Is equipped with. The ECU 1 also includes an engine speed calculator 2, a controller 3, and an actuator drive circuit 4.

  The engine speed calculator 2 calculates the engine speed based on a detection signal of a crank pulse sensor 13 that detects an angle of a crankshaft of an engine (not shown) of the saddle-ride type vehicle. The engine speed calculation unit 2 outputs an electric signal indicating the calculated engine speed to the control unit 3.

  The control unit 3 determines a target opening degree (a target opening degree of the throttle valve 12 disposed in an intake system (not shown) of the engine of the saddle riding type vehicle according to the accelerator opening degree indicated by the detection signal input from the accelerator opening sensor 11. (Hereinafter, referred to as “target throttle opening”) and controlling the drive of the motor 17 for changing the throttle opening of the internal combustion engine such as the engine of the saddle-ride type vehicle according to the calculated target throttle opening. , Control the throttle opening.

  Specifically, the control unit 3 includes a target opening degree calculation unit 31 and a control amount calculation unit 32 as functional blocks. A program that causes the target opening degree calculation unit 31 and the control amount calculation unit 32 to function as a functional block is stored in advance in a memory (not shown).

  The target opening degree calculation unit 31 calculates the accelerator opening degree corresponding to the operation amount of the accelerator operation member based on the detection signal input from the accelerator opening sensor 11 that detects the operation position of the accelerator operation member (not shown). .. The target opening degree calculation unit 31 calculates the control accelerator opening degree based on the calculated accelerator opening degree and the engine rotation speed indicated by the electric signal input from the engine rotation speed calculation unit 2. The target opening degree calculation unit 31 calculates a target throttle opening degree based on the calculated control accelerator opening degree.

  The target opening degree calculation unit 31 executes throttle opening degree control processing for controlling the throttle opening degree based on the calculated target throttle opening degree (hereinafter, referred to as “requested target throttle opening degree”). The throttle opening controlled in the throttle opening control processing is the target throttle opening or the actual opening of the throttle valve 12. In the throttle opening control process, an execution condition determination process for determining whether to execute the holding process is executed, and when the execution condition determination process determines to execute the holding process, the holding process is executed. Here, in the holding process, when the predetermined condition (first condition) is satisfied, the throttle opening is set to the throttle opening (first throttle opening) when the predetermined condition is satisfied. This is a process for controlling the opening. Each process will be described later.

  The target opening calculation unit 31 sends to the control amount calculation unit 32 a control signal for setting the target throttle opening calculated for the actual opening of the throttle valve 12 or the throttle opening controlled by executing the throttle opening control process. Output.

  The control amount calculation unit 32 uses the control signal input from the target opening calculation unit 31 to control the actual opening of the throttle valve 12 indicated by the detection signal input from the throttle opening sensor 16 to the target throttle opening. The control amount of the motor 17 that drives the valve 12 is calculated. The control amount calculation unit 32 outputs the calculated control amount to the actuator drive circuit 4.

  The actuator drive circuit 4 controls the actual opening of the throttle valve 12 to the target throttle opening by driving the motor 15 according to the control amount input from the controller 3.

<Throttle opening control processing>
In the internal combustion engine control device S having the above configuration, the throttle opening control processing for controlling the throttle opening is executed. Hereinafter, a specific flow of the throttle opening control process according to the present embodiment will be described in detail with reference to FIG.

  FIG. 2 is a flow chart showing a flow of throttle opening control processing in the embodiment of the present invention.

  The flowchart shown in FIG. 2 is started at the timing when the ignition switch of the saddle riding type vehicle is switched from the off state to the on state and the ECU 1 is operated, and the throttle opening control process proceeds to the process of step S1. The throttle opening control process is repeatedly executed at every predetermined control cycle while the ECU 1 is operating with the ignition switch of the straddle-type vehicle turned on.

  In the process of step S1, the target opening degree calculation unit 31 of the control unit 3 executes the execution condition determination process. The execution condition determination process will be described later. As a result, the process of step S1 is completed, and the throttle opening control process proceeds to step S2.

  In the process of step S2, the target opening degree calculation unit 31 determines whether or not the execution of the holding process is determined in the execution condition determination process. When it is determined that the holding process is to be executed as a result of the determination, the target opening degree calculation unit 31 advances the throttle opening degree control process to the process of step S3. On the other hand, when prohibiting the execution of the holding process, the target opening degree calculation unit 31 advances the throttle opening degree control process to the process of step S8.

  In the process of step S3, the target opening degree calculation unit 31 holds the throttle opening degree when a predetermined condition for starting execution of the holding process is satisfied. As a result, the process of step S3 is completed, and the throttle opening control process proceeds to step S4.

  In the process of step S4, the target opening degree calculation unit 31 calculates the merge processing execution opening degree for starting execution of the merge processing based on the held throttle opening degree. As a result, the process of step S4 is completed, and the throttle opening control process proceeds to step S5.

  In the process of step S5, the target opening degree calculation unit 31 sets a predetermined deviation based on the calculated opening degree for performing merge processing, and sets a deviation between the required target throttle opening degree and the held throttle opening degree. It is determined whether the required target throttle opening is in the hold region by determining whether it is less than the predetermined deviation. As a result of the determination, when the deviation between the required target throttle opening and the held throttle opening is less than the predetermined deviation and the required target throttle opening is in the hold region, the target opening calculation unit 31 The throttle opening control process proceeds to step S6. On the other hand, when the deviation between the required target throttle opening and the held throttle opening is greater than or equal to the predetermined deviation and the required target throttle opening is not in the hold region, the target opening calculation unit 31 determines that the throttle opening is The control process proceeds to step S7.

  In the processing of step S6, the target opening degree calculation unit 31 controls the throttle opening degree to be the throttle opening degree held in step S3. The control amount calculation unit 32 controls the drive of the motor 17 by the control signal input from the target opening calculation unit 31 so that the throttle opening controlled by the target opening calculation unit 31 is achieved. As a result, the process of step S6 is completed, and the throttle opening control process ends.

  In the processing of step S7, the target opening degree calculation unit 31 executes the merge processing on the throttle opening degree held in step S3, and controls the throttle opening degree so as to follow the required target throttle opening degree.

  Here, the merging process is a process such as filtering for adjusting the reduction amount or the increase amount of the throttle opening when the throttle opening is made to follow the required target throttle opening. For example, the throttle opening is multiplied or added by a coefficient. Is a process for making the throttle opening follow the required target throttle opening. At this time, the coefficient for adjusting the amount of decrease and the coefficient for adjusting the amount of increase may have the same value or different values. In addition, the coefficient is a variable value that varies depending on the difference between the held throttle opening and the required throttle opening, or is fixed regardless of the difference between the held throttle opening and the required throttle opening. Values can be used. By executing the merge process, it is possible to prevent the engine output from changing suddenly against the driver's will.

  The control amount calculation unit 32 controls the drive of the motor 17 by the control signal input from the target opening calculation unit 31 so that the throttle opening obtained by the merge processing in the target opening calculation unit 31 becomes the throttle opening.

  As a result, the process of step S7 is completed, and the throttle opening control process is completed.

  In the process of step S8, the target opening degree calculation unit 31 sets the required target throttle opening degree to the target throttle opening degree, and controls the throttle opening degree according to the accelerator opening degree. At this time, when the holding process is being executed, the target opening degree calculation unit 31 stops the execution of the holding process and controls the throttle opening degree according to the accelerator opening degree.

  Then, the control amount calculation unit 32 controls the drive of the motor 17 according to the control signal input from the target opening degree calculation unit 31.

  In the process of step S8, when the execution of the holding process is stopped, the merge process is executed for the throttle opening controlled in step S6 or step S7 of the previously executed throttle opening control process, and the step is executed. The throttle opening controlled in S6 or S7 may be controlled so as to follow the required target throttle opening.

  As a result, the process of step S8 is completed and the target opening control process is completed.

<Execution condition determination processing>
In the above throttle opening control processing, execution condition determination processing for determining whether or not to execute the holding processing is executed. Hereinafter, with reference to FIG. 3, a specific flow of the execution condition determination processing in the present embodiment will be described in detail.

  FIG. 3 is a flow chart showing a flow of execution condition determination processing in the embodiment of the present invention.

  The flow chart shown in FIG. 3 starts at the timing when the execution of the throttle opening control process is started, and the execution condition determination process proceeds to the process of step S11. The execution condition determination process is repeatedly executed every time the target opening control process is executed.

  In the process of step S11, the target opening degree calculation unit 31 determines whether the calculated required target throttle opening degree is equal to or larger than a predetermined opening degree. As a result of the determination, when the calculated required target throttle opening degree is equal to or larger than the predetermined opening degree, the target opening degree calculation unit 31 advances the execution condition determination process to the process of step S12. On the other hand, when the calculated required target throttle opening degree is less than the predetermined opening degree, the target opening degree calculation unit 31 advances the execution condition determination process to the process of step S16. In the process of step S11, the target opening degree calculation unit 31 replaces the required target throttle opening degree with the actual opening degree of the throttle valve 12 indicated by the detection signal input from the throttle opening degree sensor 16 being a predetermined opening degree or more. It may be determined whether or not there is.

  In the process of step S12, the target opening degree calculation unit 31 determines whether or not the accelerator is stable because the fluctuation range of the accelerator opening degree indicated by the detection signal input from the accelerator opening degree sensor 11 is within a predetermined range. To do. As a result of the determination, when the fluctuation range of the accelerator opening is within the predetermined range and the accelerator is stable, the target opening calculation unit 31 advances the execution condition determination process to the process of step S13. On the other hand, when the fluctuation range of the accelerator opening is larger than the predetermined width and the accelerator is not stable, the target opening calculation unit 31 advances the execution condition determination process to the process of step S16.

  In the process of step S13, the target opening degree calculation unit 31 determines whether the engine speed is stable because the fluctuation range of the engine speed input from the engine speed calculation unit 2 is within a predetermined range. To do. As a result of the determination, when the fluctuation range of the engine speed is within the predetermined range and the engine speed is stable, the target opening degree calculation unit 31 advances the execution condition determination process to the process of step S14. On the other hand, when the fluctuation range of the engine speed is larger than the predetermined range and the engine speed is not stable, the target opening degree calculation unit 31 advances the execution condition determination process to the process of step S16.

  In the process of step S14, the target opening degree calculation unit 31 determines whether the vehicle speed is stable because the fluctuation range of the vehicle speed indicated by the detection signal input from the vehicle speed sensor 15 is within the predetermined range. As a result of the determination, when the variation range of the vehicle speed is within the predetermined range and the vehicle speed is stable, the target opening degree calculation unit 31 advances the execution condition determination process to the process of step S15. On the other hand, when the variation range of the vehicle speed is larger than the predetermined range and the vehicle speed is not stable, the target opening degree calculation unit 31 advances the execution condition determination process to the process of step S16.

  In the process of step S15, the target opening degree calculation unit 31 determines to execute the holding process. As a result, the process of step S15 is completed and the execution condition determination process ends.

  In the process of step S16, the target opening degree calculation unit 31 prohibits execution of the holding process. As a result, the process of step S16 is completed and the execution condition determination process ends.

  When the required target throttle opening degree becomes less than the predetermined opening degree in the processing of step S11 of the execution condition determination processing, the execution of the holding processing is prohibited in the processing of step S16 of the execution condition determination processing to set the target opening degree control processing. By setting the target throttle opening degree to the required target throttle opening degree in the processing of step S8, it is possible to prevent the saddle riding type vehicle from being unable to decelerate.

  Prior to the execution of the process of step S11, it is determined whether or not the accelerator opening is the fully closed opening. If the accelerator opening is not the fully closed opening, the process of step S11 is executed while the accelerator is opened. If the opening is the fully closed opening, it may be determined that the driver does not intend to travel at a constant speed, and the process may proceed to step S16 to prohibit the execution of the holding process.

  Further, the fluctuation range of the accelerator opening, the fluctuation range of the engine speed, and the fluctuation range of the speed of the saddle-ride type vehicle, which are respectively obtained in steps S12, S13, and S14, are, for example, the maximum value and the minimum value within a predetermined time. It can be a difference.

<Holding process>
In the above throttle opening control processing, the holding processing from step S3 to step S7 is executed. Hereinafter, a specific flow of the holding process in the present embodiment will be described in detail with reference to FIG. 4 shown as an example.

  FIG. 4 is a diagram showing changes in the throttle opening and the required target throttle opening in the embodiment of the present invention.

  In addition, in FIG. 4, L1 shown by a broken line is a required target throttle opening, and L2 shown by a solid line is a throttle opening controlled by executing the throttle opening control processing.

  The target opening degree calculation unit 31 starts execution of the holding process at time t = t1 by determining execution of the holding process in the process of step S15 as a result of executing the execution condition determination process. Further, the target opening degree calculation unit 31 holds the required target throttle opening degree at time t = t1 at the timing when the processing of step S3 is performed and the execution of the holding processing is started. Then, the target opening degree calculation unit 31 calculates the upper limit merge processing execution opening TH4 and the lower limit merge processing execution opening TH2 by performing the processing of step S4 to execute the merge processing. As a result, the hold region ΔR1 that is larger than the merge processing execution opening TH2 and smaller than the merge processing execution opening TH4 is set.

  From the time t = t1 until the time t = t2 elapses, the target opening degree calculation unit 31 is in the hold region ΔR1 while the required target throttle opening degree L1 is changing, and therefore, from step S1 to step S5. The throttle opening L2 is maintained at a constant opening by repeating the above process for each predetermined control cycle.

  At time t = t2, the target opening degree calculation unit 31 performs the processing of step S7 because the required target throttle opening degree L1 becomes equal to or lower than the lower limit merge processing execution opening degree TH2. The merge process is executed for the opening L2.

  The target opening degree calculation unit 31 gradually closes the throttle opening degree L2 by repeating the process of step S7 of executing the merge process for the throttle opening degree L2 from time t = t2 until time t = t3. Change direction. At this time, the throttle opening L2 subjected to the merge process gradually changes in the closing direction with the lapse of time from the time t = t2, but does not change rapidly.

  After the condition (second condition) that the merged throttle opening L2 reaches the required target throttle opening L1 is satisfied at the time t = t3, the target opening calculation unit 31 satisfies this condition. The throttle opening L2 at that time is maintained. Then, the target opening degree calculation unit 31 calculates the upper limit merge processing execution opening TH3 and the lower limit merge processing execution opening TH1 by performing the processing of step S4 to execute the merge processing. As a result, the hold area ΔR2 that is larger than the merge processing execution opening TH1 and smaller than the merge processing execution opening TH3 is set. The throttle opening L2 is the target throttle opening or the actual opening of the throttle valve 12.

  From the time t = t3 to the time t = t4, the target opening calculation unit 31 changes the required target throttle opening L1 while it is within the hold region ΔR2. The throttle opening L2 is maintained at a constant opening by repeating the above process for each predetermined control cycle.

  In the internal combustion engine control device according to the present embodiment as described above, the throttle opening is equal to or greater than a predetermined opening, the fluctuation range of the accelerator opening of the saddle riding type vehicle is within a predetermined range, and the fluctuation range of the engine speed is predetermined. When the first condition is satisfied within the width and the fluctuation range of the speed of the saddle riding type vehicle is within the predetermined width, the throttle opening is set when the first condition is satisfied. Since the throttle opening is controlled, it is possible to realize stable running according to the driver's request without deteriorating the driving performance, and it is possible to prevent deterioration of fuel consumption and deterioration of emission performance. ..

  Further, in the internal combustion engine control device according to the present embodiment, when the first condition is satisfied, the required target throttle opening amount calculated according to the accelerator opening amount and the throttle when the first condition is satisfied. When the deviation between the opening and the predetermined deviation is equal to or larger than the predetermined deviation, the merge processing is executed for the opening when the first condition is satisfied so that the throttle opening follows the required target throttle opening. After the second condition that the throttle opening has reached the required target throttle opening is satisfied, the throttle opening is controlled so that the throttle opening becomes when the second condition is satisfied. Therefore, it is possible to prevent the engine output from changing suddenly against the driver's will.

  Further, in the internal combustion engine control device according to the present embodiment, when the fluctuation range of the accelerator opening becomes larger than the predetermined width when the first condition is satisfied, the throttle opening is changed according to the accelerator opening. Since it is controlled, it is possible to prevent the inability to decelerate, and it is possible to prevent the driving performance from deteriorating.

  The present invention is not limited in the kind, shape, arrangement, number, etc. of the members to the above-mentioned embodiment, and appropriately replaces the constituent elements with those having the same operational effect, and does not depart from the gist of the invention. Of course, the range can be changed appropriately.

  As described above, in the present invention, an internal combustion engine that can realize stable traveling according to the driver's wishes and can prevent deterioration of fuel consumption and deterioration of emission performance without lowering driving performance. A control device can be provided, and it is expected that the control device can be widely applied to an internal combustion engine control device of a motorcycle or the like because of its general and universal nature.

S ... Internal combustion engine control device 1 ... ECU
2 ... Engine speed calculation unit 3 ... Control unit 4 ... Actuator drive opening 11 ... Accelerator opening sensor 12 ... Throttle valve 13 ... Crank pulse sensor 15 ... Vehicle speed sensor 16 ... Throttle opening sensor 17 ... Motor 31 ... Target opening Calculation unit 32 ... Control amount calculation unit

Claims (3)

An internal combustion engine control device mounted on a saddle-ride type vehicle, comprising a control unit for controlling a throttle opening of an engine of the saddle-ride type vehicle,
The control unit is
The throttle opening is equal to or greater than a predetermined opening, the fluctuation range of the accelerator opening of the saddle riding type vehicle is within a predetermined range, the fluctuation range of the engine speed is within a predetermined range, and the saddle When the first condition that the variation range of the speed of the riding vehicle is within a predetermined range is satisfied, the first throttle opening is the throttle opening at the timing when the first condition is satisfied. To control the throttle opening,
An internal combustion engine control device characterized by the above. The control unit is
When the deviation between the required target throttle opening calculated according to the accelerator opening and the first throttle opening is equal to or more than a predetermined deviation when the first condition is satisfied. Performs a merge process on the first throttle opening to control the throttle opening to follow the required target throttle opening, and then the throttle opening becomes the required target throttle opening. After the second condition that the second condition is reached is satisfied, the throttle opening is controlled so that the second throttle opening is the throttle opening at the timing when the second condition is satisfied,
The internal combustion engine controller according to claim 1, wherein The control unit is
When the fluctuation range of the accelerator opening becomes larger than the predetermined width when the first condition is satisfied, the throttle opening is controlled according to the accelerator opening.
The internal combustion engine controller according to claim 1 or 2, characterized in that.

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