JP2009108718A - Vehicular control device and vehicular control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem wherein a user might be required to perform an excessive process when controlling an opening of a throttle valve 16. <P>SOLUTION: A throttle hold switch 44 instructing to fix the opening of the throttle valve 16 is provided on a handlebar side opposite to a handlebar side (right side) having an accelerator grip 40. When the throttle hold switch 44 is turned on, an ECU 60 performs control to maintain the opening (throttle opening θ) of the throttle valve 16 at that time. The throttle hold switch 44 releases the user from the operation of the accelerator grip 40 during traveling on an expressway and driving in a heavy traffic section etc. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a vehicle control device that controls the opening degree of an electronically controlled intake throttle valve that adjusts the flow passage area of an intake passage of an in-vehicle internal combustion engine, and a vehicle control system in which the control device is mounted.

As a control device of this type, for example, as shown in Patent Document 1 below, when the user instructs automatic constant speed control, the vehicle traveling speed is made constant by operating an electronically controlled throttle valve. What is controlled is well known. According to such control, it is possible to reduce the operation required of the user for traveling the vehicle.
JP-A-4-331633

  By the way, in a motorcycle, the opening degree of the throttle valve is normally controlled based on the operation amount of the accelerator grip. Therefore, when the constant speed running is continued for a long time, it is necessary to fix the position of the accelerator grip, which causes the user to feel fatigue in the hand. In addition, since the accelerator grip must be operated together with the steering wheel operation, the clutch operation, etc., the operation required for running the vehicle may be felt complicated. Here, it is conceivable to mount a control device for performing the above-mentioned constant speed control on the motorcycle, but in this case, there is a problem that the construction of the control system becomes complicated. In particular, in a motorcycle, since restrictions on cost are greater than those in a motorcycle, it is difficult to mount the constant speed control device.

  In addition, not only for motorcycles, but generally for vehicles, such a situation that the operation required for the user for controlling the opening degree of the throttle valve sometimes places a burden on the user is generally common. ing.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to control an opening degree of an electronically controlled intake throttle valve that adjusts a flow passage area of an intake passage of an in-vehicle internal combustion engine. Another object of the present invention is to provide a vehicle control device and a vehicle control system equipped with the vehicle control device that can reduce processing required for the vehicle.

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

  According to a first aspect of the present invention, there is provided a vehicular control device for controlling an opening degree of an electronically controlled intake throttle valve that adjusts a flow passage area of an intake passage of an in-vehicle internal combustion engine. A fixing means for fixing the opening of the intake throttle valve is provided when the fixing is instructed based on the output of the fixing instructing means for instructing the fixing.

  In the above invention, the fixing instruction means allows the user to instruct to fix the opening of the intake throttle valve. And when the opening degree of the intake throttle valve is fixed, even if the user releases the accelerator operation member, the opening degree of the intake throttle valve can be set to a desired state. It is possible to reduce processing required by the user during control.

  According to a second aspect of the present invention, in the first aspect of the invention, the fixing means fixes the intake throttle valve when it is assumed that at least one of a traveling condition of the vehicle and an operating condition of the vehicle changes. It is characterized by releasing.

  Even if the opening degree of the intake throttle valve is constant, the torque generated by the internal combustion engine or the traveling speed of the vehicle changes when the traveling condition or operating condition of the vehicle changes. For this reason, when the driving condition or driving condition of the vehicle changes, the opening of the intake throttle valve requested by the user is different from that at the time when the fixing instruction means instructs to fix the opening of the intake throttle valve. It will change. In the above invention, in view of this point, the fixing is released when the running condition or driving condition of the vehicle changes.

  The invention according to claim 3 further comprises target opening setting means for setting a target opening of the intake throttle valve based on a required torque for the internal combustion engine according to claim 1 or 2, wherein the fixing means Further, when releasing the opening degree of the intake throttle valve, a gradual change means for gradually changing the opening degree of the intake throttle valve to the target opening degree is provided.

  If there is a difference between the opening set by the target opening setting means and the fixed opening at the timing of releasing the fixed opening of the intake throttle valve, the opening set by the target opening setting means If it is changed at once, the generated torque of the internal combustion engine may change suddenly. In view of this point, the above invention can avoid a sudden change in torque of the internal combustion engine by providing the gradual change means.

  Preferably, the target opening setting means grasps the required torque based on the operation amount of the accelerator operation member.

  According to a fourth aspect of the present invention, in the third aspect of the present invention, the output shaft of the internal combustion engine is connected to a drive wheel of a vehicle via a speed change means, and the gradual change means is the speed change means. The speed of change to the target opening is made variable according to the speed ratio.

  When the speed ratio of the speed change means is different, the degree of change in the rotation of the drive wheels accompanying the change in the torque of the internal combustion engine is also different. For this reason, it is considered that the transition speed (change speed) to the target opening degree for maintaining a good traveling state of the vehicle depends on the gear ratio. In the above invention, paying attention to this point, by making the change speed to the target opening variable according to the gear ratio, the vehicle running state is kept good even during the gradual change processing by the gradual change means. be able to.

  According to a fifth aspect of the invention, in the invention according to any one of the first to fourth aspects, when the release of the fixation is instructed based on an output of the fixation instruction means, the fixing means The fixed opening of the valve is released.

  In the said invention, it can respond appropriately to the request | requirement of the cancellation | release of fixation by a user.

  The invention according to claim 6 is the invention according to any one of claims 1 to 5, further comprising storage means for storing a detected value of a traveling speed of the vehicle at the time when the fixing is instructed, The means is characterized in that the opening degree of the intake throttle valve is released when the difference between the current traveling speed and the stored detected value is greater than or equal to a predetermined value.

  Even if the opening of the intake throttle valve is fixed, the traveling speed of the vehicle may change depending on the traveling condition of the vehicle. In this case, it is considered that the opening degree of the fixed intake throttle valve is not an appropriate value that meets the user's request. In this respect, in the above-described invention, by releasing the fixation under such circumstances, the fixation can be released quickly without waiting for an instruction from the user.

  The invention according to claim 7 is the invention according to any one of claims 1 to 6, wherein the fixing means releases the fixing of the opening degree of the intake throttle valve when a vehicle brake is operated. It is characterized by that.

  A brake operation means that a braking force is required for the vehicle. For this reason, under such circumstances, it is desirable that the torque generated by the internal combustion engine be small. In view of this point, in the above invention, by releasing the fixing in such a situation, the fixing can be released quickly without waiting for an instruction from the user, thereby avoiding generation of useless torque by the internal combustion engine. be able to.

  The invention according to claim 8 is the invention according to claim 7, further comprising means for prohibiting the release based on the operation of the brake when the traveling speed of the vehicle is equal to or lower than a predetermined value.

  When an instruction to fix the opening of the intake throttle valve is given through the fixing instruction means in a traffic jam or the like, the user may want to concentrate on the clutch or brake operation. In the above invention, in view of this point, the driving load of the user in the traffic jam section is reduced by prohibiting the release of the fixation in consideration of the case where the traveling speed of the vehicle is equal to or lower than the predetermined speed or the time of traffic jam. You can do that.

  The invention according to claim 9 is the invention according to any one of claims 1 to 8, wherein the output shaft of the internal combustion engine is connected to driving wheels of a vehicle via a transmission means, Storage means for storing the transmission gear ratio of the transmission means at the time when the fixation is instructed is further provided, and the fixing means is configured to take the intake air when the difference between the current transmission gear ratio and the stored transmission gear ratio is equal to or greater than a predetermined value. It is characterized by releasing the fixation of the throttle valve.

  Even if the rotational speeds of the internal combustion engines are the same, the traveling speeds of the vehicles are different if the transmission gear ratios are different. For this reason, it is considered that the traveling speed of the vehicle changes when the gear ratio changes while the opening of the intake throttle valve is fixed. In this case, it is considered that the opening of the fixed intake throttle valve is no longer suitable for the user's request. In view of this point, in the above invention, by releasing the fixing under such circumstances, the fixing can be quickly released without waiting for an instruction from the user.

  The invention according to claim 10 is the invention according to any one of claims 1 to 9, wherein the opening of the intake throttle valve is set based on an operation amount of an accelerator grip. To do.

  When the opening degree of the intake throttle valve is set based on the operation amount of the accelerator grip, it is necessary to fix the accelerator grip with a predetermined operation amount in order to fix the opening degree of the intake throttle valve. Easy to feel tired. In this regard, in the above invention, it is possible to suitably reduce the user's fatigue by providing the fixing means.

  An eleventh aspect of the present invention is a vehicle control system comprising the vehicle control device according to any one of the first to tenth aspects and the fixing instruction means.

  DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment in which a vehicle control device according to the present invention is applied to a control device for a gasoline engine mounted on a motorcycle will be described with reference to the drawings.

  FIG. 1 shows a system configuration diagram according to the present embodiment. The illustrated internal combustion engine 10 is an intake port injection type single cylinder gasoline engine. An intake throttle valve (throttle valve 16) for adjusting the flow passage area is provided upstream of the intake passage 12 of the internal combustion engine 10. This throttle valve 16 is of an electronic control type and is opened and closed by a motor 14. The opening degree of the throttle valve 16 is detected by a throttle sensor 17. An intake pressure sensor 18 that detects the pressure (intake pressure PM) in the intake passage 12 is provided on the downstream side of the throttle valve 16. Further, a fuel injection valve 20 is provided on the downstream side of the intake passage 12.

  The intake passage 12 is communicated with the combustion chamber 24 by opening the intake valve 22. A spark plug 26 protrudes from the combustion chamber 24. Then, the air-fuel mixture of the air sucked into the intake passage 12 and the fuel injected by the fuel injection valve 20 is combusted in the combustion chamber 24 by ignition of the spark plug 26. This combustion energy is converted into rotational energy of the output shaft (crankshaft 30) of the internal combustion engine 10 via the piston 28. The crankshaft 30 is connected to drive wheels via a transmission 32. A crank angle sensor 34 that detects the rotation angle is provided in the vicinity of the crankshaft 30.

  On the other hand, the air-fuel mixture subjected to combustion in the combustion chamber 24 is discharged into the exhaust passage 38 as exhaust gas as the exhaust valve 36 is opened.

  The system also includes an accelerator grip 40 as a means for the user to indicate the amount of torque required for the internal combustion engine 10. In the vicinity of the accelerator grip 40, an accelerator sensor 42 for detecting the operation amount is provided. A throttle hold switch 44 is provided on the side of the handle that does not have an accelerator grip as a fixing instruction means for instructing to fix the opening of the throttle valve 16.

  The system further includes a brake switch 50 that detects whether or not a brake that generates braking force has been applied to the vehicle, a vehicle speed sensor 52 that detects the traveling speed of the vehicle, and the gear position (speed ratio) of the transmission 32. A gear position sensor 54 for detecting the clutch, a clutch sensor 56 for detecting the presence or absence of operation of a clutch for connecting and disconnecting the drive wheel and the crankshaft 30, and detecting whether or not the crankshaft 30 and the drive shaft are disconnected. A neutral switch 58 and the like are provided.

  The electronic control device (ECU 60) is a control device that controls the internal combustion engine 10. The ECU 60 takes in the detection values of various sensors that detect the operating state of the internal combustion engine 10, the running conditions of the vehicle, the user's request, such as the intake pressure sensor 18, the crank angle sensor 34, the accelerator sensor 42, and the like. Then, various actuators of the internal combustion engine 10 such as the motor 14, the fuel injection valve 20, and the spark plug 26 are operated.

  In particular, the ECU 60 determines the target value (target throttle opening) of the opening θ of the throttle valve 16 based on the accelerator operation amount ACCG detected by the accelerator sensor 42 and the rotational speed NE corresponding to the detection value of the crank angle sensor 34. And the opening degree of the throttle valve 16 is controlled accordingly. However, when the throttle hold switch 44 is operated, control for fixing the opening of the throttle valve 16 is performed. This will be described in detail below.

  FIG. 2 shows a processing procedure for fixing control of the throttle valve 16. This process is repeatedly executed by the ECU 60 at a predetermined cycle, for example.

  In this series of processing, first, in step S10, it is determined whether or not a throttle hold flag indicating that the throttle hold switch 44 is on is on. This process determines whether or not the user has instructed to fix the throttle valve 16. If it is determined that the throttle hold switch 44 is not in the on state, it is determined in step S12 whether or not the throttle hold switch 44 has been switched from the off state to the on state. And when it is judged that it switched from the OFF state to the ON state, it transfers to step S14. In step S14, the detected value (actual vehicle speed SPD) of the vehicle speed sensor 52 is set to the actual vehicle speed SPD0, the gear position GP detected by the gear position sensor 54 is set to the gear position GP0, and the detected value (throttle opening θ) of the throttle sensor 17 is set. Is stored as the throttle opening θ0.

  In the subsequent step S16, the throttle hold flag is turned on. When the process of step S16 is completed, or when it is determined in step S10 that the throttle hold switch is on, the target throttle opening is stored in step S18 as the throttle opening θ0 stored in step S14. And In the following step S20, (a) the throttle hold switch 44 is in an ON state, and (b) the current actual vehicle speed SPD is approximate to the actual vehicle speed SPD0 stored in step S14 (“SPD0−α ”And within a range of“ SPD0 + β ”or less), and (c) whether the logical product condition that the current gear position GP is the gear position GP0 stored in step S14 is satisfied. Determine whether. This process determines whether or not the user's request and the vehicle driving conditions and the vehicle driving conditions have changed. This is because when the driving condition or driving condition of the vehicle changes, even if the opening degree of the throttle valve 16 is the same, the torque generated by the internal combustion engine 10 changes or the driving speed of the vehicle changes. This is done in view of this. That is, in such a case, it is considered that the opening degree of the throttle valve 16 requested by the user is different from the throttle opening degree θ0 stored in step S14. For this reason, a condition that the logical product condition is not satisfied is included as a condition for releasing the fixed opening of the throttle valve 16.

  Note that the condition (b) is to determine whether or not the actual vehicle speed SPD has changed due to a change in traveling conditions such as when the vehicle has approached a slope. The condition (c) is used to determine whether or not the driving condition of the vehicle has changed due to a change in the gear position GP.

  If it is determined in step S20 that the logical product condition is satisfied, it is determined in step S22 whether or not the current actual vehicle speed SPD is equal to or higher than the specified speed γ. Here, the specified speed γ is for determining that the vehicle is not in a situation such as traveling in a traffic jam section. The prescribed speed γ is set to about the lowest vehicle speed (for example, 30 km) during steady running on a general road. If it is determined that the speed is greater than or equal to the specified speed γ, in step S24, it is determined whether or not a logical sum condition is established between the brake switch being in the on state and the neutral state. This process also determines whether or not the driving conditions of the vehicle have changed. That is, when the brake operation is performed and braking force is requested from the vehicle, or the clutch is disengaged, the crankshaft 30 and the drive wheel are disconnected, and the throttle opening stored in step S14 is stored. Since it is considered that θ0 is no longer an appropriate value, the above OR condition is included as a condition for releasing the opening of the throttle valve 16 from being fixed.

  If it is determined in step S20 that the logical product condition is not satisfied, or if it is determined in step S24 that the logical sum condition is satisfied, the process proceeds to step S26. In step S26, the throttle hold flag is turned off. In the subsequent step S28, the target throttle opening is shifted to the target basic opening θt calculated based on the accelerator operation amount ACCG and the actual rotational speed NE. That is, when the logical product condition is not satisfied or the logical sum condition is satisfied, it is considered that the throttle opening degree θ0 stored in step S14 is not an appropriate value. Therefore, the target basic opening degree θt based on the accelerator operation by the user is set. Transition. At this time, for example, a gradual change process is performed in which the current target throttle opening is gradually changed to the target basic opening θt, instead of being changed at once to the target basic opening θt. This is a process for avoiding a sudden change in the generated torque of the internal combustion engine 10 due to a sudden change in the opening of the throttle valve 16. This gradual change process can be realized by, for example, a weighted average process of the current throttle opening θ and the target throttle opening, a first-order lag filter process of the target throttle opening, or the like.

  Here, the speed (gradual change speed) for changing the throttle opening θ is variably set according to the gear position GP. This setting is made in view of the fact that the degree of change in the rotation of the drive wheels accompanying the change in the torque of the internal combustion engine 10 can vary depending on the gear position GP. For this reason, by setting the gradual change speed variably according to the gear position GP, the traveling speed of the vehicle during the gradual change process is improved. For example, in the case where the current actual vehicle speed SPD is higher than the actual vehicle speed SPD0 stored in step S14, in view of the fact that the actual rotational speed NE is likely to increase as the gear position GP is lower, gradually change. Increase speed.

  When a negative determination is made in steps S12, S22, and S24, or when the process of step S28 is completed, this series of processes is temporarily terminated.

  According to such a process, when driving on a highway or the like, the throttle hold switch 44 is turned on so that the vehicle can be driven at a constant speed even when the accelerator grip 40 is released. be able to. Further, when the user makes a U-turn at an intersection or the like, the user does not need to operate the accelerator grip 40 by turning on the throttle hold switch 44, so that the user can concentrate on the clutch operation and the handle operation. Furthermore, when there is a traffic jam or the like, it is possible to concentrate on the clutch operation and the brake operation by turning on the throttle hold switch 44. Note that, at the time of a U-turn, traffic jam, and the like, the actual vehicle speed SPD is considered to be equal to or less than the specified speed γ. Therefore, the fixing process of the throttle valve 16 is continued regardless of the brake or clutch operation.

  According to the embodiment described in detail above, the following effects can be obtained.

  (1) When the throttle valve 16 is instructed to be fixed based on the output of the throttle hold switch 44, the opening of the throttle valve 16 is fixed. Thereby, even if the user releases the accelerator grip 40, the opening degree of the throttle valve 16 can be set to a desired state, and processing required for the user when controlling the opening degree of the throttle valve 16 can be reduced. it can.

  (2) When at least one of the driving condition of the vehicle and the driving condition of the vehicle is assumed to change, the fixing of the throttle valve 16 is released. Thereby, fixation can be cancelled | released in the condition considered that the opening degree of the throttle valve 16 which a user requests | requires changes.

  (3) When releasing the fixed opening of the throttle valve 16, the opening θ of the throttle valve 16 is changed to a target throttle opening (target basic opening θt) set according to the accelerator operation amount ACCG and the rotation speed. And gradually changed. Thereby, the sudden change of the torque of the internal combustion engine 10 can be avoided.

  (4) The speed of change to the target basic opening θt is variable according to the gear position GP of the transmission 32. Thereby, irrespective of the gear position GP, it is possible to maintain a good running state of the vehicle during the gradual change process.

  (5) When the release of fixing is instructed by turning off the throttle hold switch 44, the opening of the throttle valve 16 is released. As a result, it is possible to appropriately respond to the user's request for releasing the fixation.

  (6) The actual vehicle speed SPD at the time when the throttle hold switch 44 is turned on is stored as the actual vehicle speed SPD0, and when the difference between the current actual vehicle speed SPD and the actual vehicle speed SPD0 is equal to or greater than a predetermined value, the opening of the throttle valve 16 Was unpinned. Accordingly, in a situation where the fixed opening is not considered to be an appropriate value that meets the user's request, the fixation can be quickly released without waiting for an instruction from the user by releasing the fixation. .

  (7) When the vehicle brake is operated, the opening degree of the throttle valve 16 is released. As a result, in a situation where the torque required for the internal combustion engine 10 is considered to be small, it is possible to release the fixation quickly without waiting for an instruction from the user, and consequently the waste caused by the internal combustion engine 10. Generation of torque can be avoided.

  (8) When the traveling speed of the vehicle is equal to or lower than a predetermined value, the brake operation or the release based on the neutral state is prohibited. Thereby, the load in the driving | running of the congestion area by a user, etc. can be reduced.

  (9) The gear position GP when the throttle hold switch 44 is turned on is stored, and when the deviation between the current gear position GP and the stored gear position GP exceeds a predetermined value, the throttle valve 16 is released from being fixed. . As a result, in a situation where the fixed opening is considered not to be appropriate for the user's request, it can be released quickly without waiting for instructions from the user by releasing the fixation. it can.

  (10) The throttle valve 16 is set based on the operation amount of the accelerator grip 40. When the opening degree of the throttle valve 16 is set based on the operation amount of the accelerator grip 40, it is necessary to fix the accelerator grip 40 with a predetermined operation amount in order to fix the opening degree of the throttle valve 16. Easy to feel fatigue in the hands. In this regard, in the present embodiment, by providing the throttle hold switch 44, the user's fatigue can be suitably reduced.

(Other embodiments)
Each of the above embodiments may be modified as follows.

  In the above embodiment, when the gear position GP0 immediately after the throttle hold switch 44 is turned on and the current gear position GP do not coincide with each other, the throttle hold flag is turned off to fix the throttle opening. Released. However, since the vehicle speed is considered to change when the gear position GP is changed, in this case, it is considered that the actual vehicle speed SPD0 immediately after the throttle hold switch 44 is turned on and the current actual vehicle speed SPD are different. . For this reason, the process of releasing the fixation based on the gear position GP may be omitted by using the process of releasing the fixation of the throttle opening based on the degree of deviation of the actual vehicle speed SPD.

  Similarly, since the vehicle speed is considered to change even when the neutral switch 58 is turned on, the neutral switch 58 is set to the neutral switch 58 by using a process for releasing the fixed throttle opening based on the degree of deviation of the actual vehicle speed SPD. You may omit the process which cancels | releases the fixing based on.

  Among the factors that cause the difference between the actual vehicle speed SPD0 immediately after the throttle hold switch 44 is turned on and the current actual vehicle speed SPD, the factors other than the change in the gear position GP and the like include changes in the gradient of the road surface on which the vehicle travels There may be changes in driving conditions such as changes in wind direction during driving. For this reason, if a sensing means for sensing changes in the driving conditions is provided, the throttle opening may be released when the driving conditions change based on the sensing means. In this case, it is not necessary to cancel based on the deviation degree of the actual vehicle speed SPD.

  When the present invention is applied to reduce the feeling that the user feels fatigued by fixing the accelerator grip 40 for a long time when traveling on a highway, the actual vehicle speed SPD is a specified speed γ or more. You may omit the process which judges whether there exists.

  -Conditions for releasing the fixed throttle opening are not limited to those described above. For example, a condition may be added that the accelerator grip 40 is operated more than a predetermined amount on the torque increase instruction side immediately before the fixing control. According to this, the user can give an instruction to increase the torque without turning off the throttle hold switch 44. Alternatively, a condition that the target basic opening degree θt based on the operation of the accelerator grip 40 and the rotational speed NE is larger than the fixed throttle opening degree θ0 may be added.

  Note that any one of the above conditions and the condition that the brake switch 50 is turned on may be used and the condition that the throttle hold switch 44 is turned off may be excluded. In such a case, the throttle hold switch 44 may be configured to recover to the original state by being released after being displaced to indicate that the throttle opening is fixed.

  The condition for releasing the fixed throttle opening may be the condition that the throttle hold switch 44 is turned off.

  The arrangement of the throttle hold switch 44 is not limited to the arrangement on the handle side opposite to the accelerator grip 40. For example, it may be provided on the handle side on the accelerator grip side. Furthermore, you may provide in the position where a user can operate with a leg | foot.

  The internal combustion engine 10 is not limited to a single cylinder internal combustion engine, and may be a multi-cylinder internal combustion engine. Further, the internal combustion engine 10 is not limited to the intake port injection type spark ignition type internal combustion engine, and may be, for example, a cylinder injection type spark ignition type internal combustion engine. In short, the present invention can be suitably applied to an internal combustion engine that serves as a main actuator for the intake throttle valve to control torque. Further, the internal combustion engine 10 is not limited to being mounted on a motorcycle, and may be mounted on a motorcycle. Even in this case, when the throttle hold switch 44 is turned on, the throttle opening can be maintained at the value before the release even when the accelerator operation member (accelerator pedal) is released.

The system block diagram concerning one Embodiment. The flowchart which shows the procedure of the fixing process of the throttle valve concerning the embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Internal combustion engine, 16 ... Throttle valve, 40 ... Accelerator grip, 42 ... Accelerator sensor, 44 ... Throttle hold switch (one embodiment of fixing instruction means), 60 ... ECU (one embodiment of vehicle control device)

Claims (11)

In a vehicle control device that controls the opening degree of an electronically controlled intake throttle valve that adjusts the flow passage area of an intake passage of an in-vehicle internal combustion engine,
A vehicle comprising: a fixing unit that fixes the opening of the intake throttle valve when the fixing is instructed based on an output of a fixing instruction unit that instructs to fix the opening of the intake throttle valve. Control device.   2. The vehicle control device according to claim 1, wherein the fixing unit releases the fixing of the intake throttle valve when at least one of a traveling condition of the vehicle and an operating condition of the vehicle is assumed to change. . Further comprising target opening setting means for setting a target opening of the intake throttle valve based on a required torque for the internal combustion engine;
2. The grading means for gradually changing the opening degree of the intake throttle valve to the target opening degree when releasing the fixation of the opening degree of the intake throttle valve. Or the control apparatus for vehicles of 2. The output shaft of the internal combustion engine is connected to the drive wheels of the vehicle via a transmission means,
4. The vehicle control device according to claim 3, wherein the gradual change means makes a change speed to the target opening variable according to a gear ratio of the speed change means.   The said fixing | fixed means cancels | releases fixation of the opening degree of the said intake throttle valve, when cancellation | release of the said fixation is instruct | indicated based on the output of the said fixation instruction | indication means. The vehicle control device described in 1. Storage means for storing a detected value of the traveling speed of the vehicle at the time when the fixing is instructed;
6. The fixing device according to claim 1, wherein when the deviation between the current traveling speed and the stored detected value is greater than or equal to a predetermined value, the fixing means releases the opening of the intake throttle valve. The vehicle control device according to claim 1.   The vehicle control device according to claim 1, wherein when the vehicle brake is operated, the fixing means releases the fixing of the opening of the intake throttle valve.   8. The vehicle control device according to claim 7, further comprising means for prohibiting the release based on the operation of the brake when a traveling speed of the vehicle is equal to or lower than a predetermined value. The output shaft of the internal combustion engine is connected to the drive wheels of the vehicle via a transmission means,
Storage means for storing a transmission ratio of the transmission means at the time when the fixing is instructed;
9. The fixing device according to claim 1, wherein the fixing device releases the fixing of the intake throttle valve when a difference between a current speed ratio and the stored speed ratio is equal to or greater than a predetermined value. The vehicle control device described in 1.   The vehicle control device according to claim 1, wherein the opening degree of the intake throttle valve is set based on an operation amount of an accelerator grip. The vehicle control device according to any one of claims 1 to 10,
A vehicle control system comprising the fixing instruction means.

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