JP2018141423A - Driving force control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a driving force control device capable of quickly and smoothly executing gear change of a dog-type transmission.SOLUTION: In a driving force control device, a control part controls a throttle opening degree, so that an intake amount of an engine is different by a predetermined intake amount compared to a case when the throttle opening degree is maintained to an opening degree NLL corresponding to a no-load line by changing the throttle opening degree to an opposite side across the opening degree NLL corresponding to the no-load line when a shift operation detection part detects a shift operation of a dog-type transmission while a clutch condition detection part is detecting connection of a main clutch. The predetermined intake amount is set based on a difference between the opening corresponding to the no-load line and the throttle opening degree or a value corresponding to a ratio when the shift operation of the dog-type transmission is detected while the connection of the main clutch is detected.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a driving force control device, and more particularly, to a driving force control device mounted on a straddle-type vehicle that transmits driving force of an engine to driving wheels through a main clutch and a dog transmission in order.

  Some motorcycles have a dog-type transmission. In such a dog-type transmission, the driver does not operate the main clutch, and the dogs of the dog-type transmission are in contact with each other (dog teeth), and one of the engine and the driving wheel drives the other, Shifting can be performed. According to such a configuration, the driver can quickly shift gears by omitting the operation of the main clutch.

  However, in a state where one of the engine and the driving wheel is driving the other, a large pressing force acts on the contact surface between the dogs of the dog type transmission. For this reason, even if the driver tries to separate the dogs for shifting, it is difficult to separate the dogs by the operation of the driver because a large static frictional force proportional to the pressing force is acting on the contact surface. Tend to be.

  Under such circumstances, Patent Document 1 relates to the driving force control apparatus 1, and in the state where the control unit 4 detects that the clutch state detection unit 2 detects the engagement of the main clutch, the transmission operation detection unit 3 performs the shift of the dog type transmission. A configuration is disclosed in which when the operation is detected, the throttle opening is temporarily changed to a predetermined opening deviated from the no-load line, and then the throttle opening is changed toward the throttle opening corresponding to the no-load line. To do.

JP-A-2016-98729

  However, according to the study of the present inventor, the configuration of Patent Document 1 shows the engagement state when the dogs of the dog transmission are in an engaged state when a shift operation of the dog transmission is detected. While releasing and enabling shifting, the driver actually starts the shifting operation while suppressing the acceleration or deceleration of the straddle-type vehicle against the driver's will until the shifting is completed. The time lag until the engine driving force changes sufficiently can be shortened, but when the dog-type transmission is operated with the main clutch engaged, the dogs are disengaged. Considering the amount of deviation of the actual throttle opening relative to the opening corresponding to the no-load line, which is a parameter of the magnitude of the operating force to realize the Since not, to realize a state in which the engagement is released the dog between at the right actuation force in such a case, there is room for further improvement from the viewpoint of running quickly and smoothly shifting.

  The present invention has been made through the above-described studies. When a shift operation of the dog transmission is detected in a state where the connection of the main clutch is detected, the shift of the dog transmission is quickly and smoothly performed. It is an object of the present invention to provide a driving force control device that can be used.

  In order to achieve the above object, the present invention is mounted on a straddle-type vehicle that transmits engine driving force to driving wheels through a main clutch and a dog type transmission in order, and detects connection or disconnection of the main clutch. A clutch state detection unit, a shift operation detection unit that detects a shift operation of the dog transmission, a motor drive unit that drives a motor that changes the throttle opening of the engine, and the clutch state detection unit When the shift operation detection unit detects the shift operation of the dog type transmission in a state where the connection is detected, the engagement of the dogs of the dog type transmission is released or weakened, and the dog type transmission By controlling the motor drive so that shifting is possible. A control unit that temporarily changes the throttle opening to change the driving force temporarily, and operates the engine capable of releasing the engagement between the dogs. A no-load line indicating a state is set in advance, and the control unit is configured so that the shift operation detection unit detects the shift operation of the dog transmission while the clutch state detection unit detects the connection of the main clutch. The throttle opening is changed to the opposite side across the opening corresponding to the no-load line, so that the intake air amount of the engine corresponds to the throttle opening corresponding to the no-load line. The throttle opening is controlled so that the predetermined intake air amount is different from that in the case of maintaining the predetermined intake air amount. A value corresponding to a difference or a ratio between the opening corresponding to the no-load line and the throttle opening when the shift operation of the dog transmission is detected in the state where the connection of the switch is detected. The first aspect is to be set based on this.

  Further, according to the present invention, in addition to the first aspect, the predetermined intake amount is obtained by maintaining the throttle opening at a predetermined opening for a predetermined time, and at least of the predetermined opening and the predetermined time. One side is set based on the value as a second aspect.

  In addition to the first or second aspect, the third aspect of the present invention is that the predetermined intake air amount is set to increase as the value increases.

  Further, according to the present invention, in addition to any one of the first to third aspects, after the predetermined intake air amount is obtained, the control unit sets the throttle opening corresponding to the no-load line. Controlling the opening degree is a fourth aspect.

  Further, according to the present invention, in addition to the fourth aspect, the control unit controls the throttle opening so as to be the opening corresponding to the no-load line. It is a fifth aspect to perform control so as to gradually approach the required opening according to the accelerator opening of the riding type vehicle.

  In addition to the fifth aspect of the present invention, the control unit corresponds to the no-load line after the throttle opening is shifted to the opposite side across the opening corresponding to the no-load line. And controlling the throttle opening so that the throttle opening is gradually approached to the required opening corresponding to the accelerator opening of the straddle-type vehicle. To do.

  According to the driving force control apparatus according to the present invention described above, when the control unit detects the shift operation of the dog transmission while the clutch state detection unit detects the connection of the main clutch. By changing the throttle opening to the opposite side across the opening corresponding to the no-load line, the intake amount of the engine is a predetermined amount of intake compared to when the throttle opening is maintained at the opening corresponding to the no-load line The throttle opening is controlled differently, and the predetermined intake air amount is an opening corresponding to a no-load line when a shift operation of the dog type transmission is detected in a state where the connection of the main clutch is detected. Is set based on a value corresponding to the difference or ratio between the throttle angle and the throttle opening. Upon detecting a shift operation of the dog type transmission in a state in which detects the latching of the connection, the shifting of the dog-type transmission can be performed quickly and smoothly.

FIG. 1 is a block diagram illustrating a configuration of a driving force control apparatus according to an embodiment of the present invention. FIG. 2 is a diagram mainly showing a time change of the throttle opening accompanying a speed change operation when the driving force control process by the driving force control device in the present embodiment is executed during deceleration. FIG. 3 is a diagram mainly showing a time change of the throttle opening accompanying a shift operation when the driving force control process by the driving force control device in the present embodiment is executed during acceleration.

  Hereinafter, a driving force control apparatus according to an embodiment of the present invention will be described in detail with reference to the drawings as appropriate.

[Configuration of driving force control device]
First, the configuration of the driving force control apparatus in the present embodiment will be described with reference to FIG.

  FIG. 1 is a block diagram showing the configuration of the driving force control apparatus in this embodiment.

  As shown in FIG. 1, the driving force control device 1 according to the present embodiment is configured by an electronic control device such as an ECU (Electronic Control Unit), both of which are sequentially connected to an engine through a main clutch and a dog transmission that are not shown. It is typically mounted on a straddle-type vehicle such as a motorcycle that transmits the drive force to the drive wheels.

  The driving force control device 1 includes a clutch state detection unit 2, a shift operation detection unit 3, a shift speed detection unit 4, a control unit 5, a motor drive circuit 6, a spark plug drive circuit 7, and a fuel injection valve drive circuit 8. Yes. The clutch state detection unit 2, the shift operation detection unit 3, the gear position detection unit 4, and the control unit 5 are shown as functional blocks. In addition, the driving force control device 1 includes a memory (not shown) and the like, and a control program and control data necessary for the driving force control device 1 are stored in the memory.

  Specifically, the clutch state detection unit 2 is based on an input signal from the clutch switch 11 that carries information related to the operation when the driver of the saddle riding type vehicle connects or disconnects the main clutch. Detects connection or disconnection. The clutch state detection unit 2 inputs an electrical signal corresponding to the detected main clutch on / off operation to the control unit 5.

  The shift operation detection unit 3 detects the shift operation of the dog transmission based on an input signal from the shift operation switch 12 that carries information regarding the shift operation when the driver performs the shift operation of the dog transmission. . The shift operation detection unit 3 inputs an electrical signal according to the presence or absence of the shift operation of the dog transmission detected in this way to the control unit 5.

  The gear position detection unit 4 outputs a dog based on a signal corresponding to the gear position (gear position) selected by the dog transmission corresponding to the rotational position of the shift drum of the dog transmission output from the gear position sensor 13. Detects the gear stage selected in the transmission. The gear position detection unit 4 inputs an electric signal indicating the detected gear position to the control unit 5.

  The control unit 5 uses the input signals from the clutch switch 11, the shift operation switch 12, the gear position sensor 13, the throttle position sensor 15, the accelerator opening sensor 16, and the crank angle sensor 17 to use the spark plug drive circuit 7 and the fuel. The injection valve drive circuit 8 is controlled, and the motor drive circuit 6 is controlled so as to control the throttle valve opening (throttle opening) of the engine, that is, the actual throttle opening that is the actual throttle opening. The control unit 5 inputs each control signal for such control to the spark plug drive circuit 7, the fuel injection valve drive circuit 8, and the motor drive circuit 6. The throttle position sensor 15 inputs an electrical signal corresponding to the throttle opening of the engine. The accelerator opening sensor 16 inputs an electric signal corresponding to an operation amount (accelerator opening) of an accelerator operating member such as an accelerator grip of a saddle riding type vehicle. The crank angle sensor 17 inputs an electric signal corresponding to the crank angle (crankshaft rotation angle) of the engine.

  Here, the control unit 5 corresponds to the no-load line when the shift operation detection unit 3 detects a shift operation of the dog transmission in a state where the clutch state detection unit 2 detects the connection of the main clutch. By changing the opening to the opposite side, the throttle opening is controlled so that the engine intake differs by a predetermined amount compared to when the throttle opening is maintained at the opening corresponding to the no-load line. The driving force control process is executed. Further, the predetermined intake air amount is a difference between an opening corresponding to a no-load line, which will be described later, and a throttle opening, or the details when a shift operation of the dog transmission is detected in a state where the connection of the main clutch is detected. It is set based on a value corresponding to the ratio.

  The motor drive circuit 6 controls the throttle opening by driving the throttle motor 14 in accordance with a control signal from the control unit 5.

  The spark plug drive circuit 7 controls an ignition operation to the engine by the engine spark plug 18, that is, a series of ignition operations such as start, stop and restart of ignition in accordance with a control signal from the control unit 5.

  The fuel injection valve drive circuit 8 controls a series of fuel injection operations such as start, stop and restart of fuel injection of the fuel injection valve 19 that injects fuel into the engine according to a control signal from the control unit 5.

  When the driving force control device 1 having the above configuration detects the gear shifting operation of the dog type transmission in a state where the connection of the main clutch is detected by executing the following driving force control process, Shift dog-type transmissions quickly and smoothly. Hereinafter, the operation of the driving force control apparatus 1 when executing the driving force control process will be described in detail with reference to FIGS.

[Driving force control processing]
FIG. 2 is a diagram mainly showing a time change of the throttle opening accompanying the speed change operation when the driving force control process by the driving force control device 1 in the present embodiment is executed at the time of deceleration. FIG. 3 is a diagram mainly showing a time change of the throttle opening accompanying a shift operation when the driving force control process by the driving force control apparatus 1 in the present embodiment is executed at the time of acceleration. 2 and 3, characteristic lines L1 and L11 are shown as required throttle opening required by the accelerator operation by the driver (as an example, maintained as a constant value, but the characteristic line L1 is The throttle opening NLL corresponding to the no-load line is lower, the characteristic line L11 is higher than the throttle opening NLL corresponding to the no-load line), the characteristic lines L2 and L12 are the target throttle opening, and the characteristic lines L3 and L13 are The throttle opening NLL corresponding to the no-load line, characteristic lines L4 and L14 indicate that the throttle opening is zero, and characteristic lines L5 and L15 indicate whether or not there is a shift request according to the shift operation by the driver. Lines and characteristic lines L6 and L16 indicate lines indicating the change (shift) of the gear position (gear position), respectively. The characteristic lines L2 and L12 indicate the target throttle opening in the control of the driving force control apparatus 1, but in reality, the actual throttle opening that is feedback-controlled toward the target throttle opening. You may think that it shows.

  Here, in the driving force control process by the driving force control device 1 in the present embodiment, the no-load line is such that the engine driving force is the resistance force of the engine (mechanical friction force, viscoelastic force of lubricating oil, etc.). It shows the engine operating state in a balanced state, and typically consists of characteristic data indicating the engine operating state in which the dog-type transmission can be disengaged with the engine speed and throttle opening as parameters. Are preset and stored in the memory. Specifically, the no-load line defines the boundary of the engine operating state where the engagement state between the dogs of the dog-type transmission switches between the engagement state during deceleration and the engagement state during acceleration. It defines the relationship between the engine speed and the throttle opening in a state in which the dogs are in contact with each other without being separated or pressed, and in a state in which the dogs are detachably pressed against each other. is there. That is, the no-load line is not only a simple line but also a region extending with a certain vertical width including the straight line in the orthogonal coordinate system having the engine rotation speed and the throttle opening as the respective coordinate axes. The throttle opening degree NLL corresponding to the no-load line indicated by the characteristic lines L3 and L13 in FIGS. 2 and 3 exemplifies a representative value of the throttle opening degree in the region corresponding to such no-load line. That is, the throttle opening NLL corresponding to such a no-load line not only realizes a state where the dogs are merely in contact with each other without being separated or pressed, but also loosens each other in a state where the dogs can be separated from each other. The throttle opening NLL corresponding to such a no-load line may not only exactly match the throttle opening but also deviated up and down by several degrees from that. Can be included.

  In addition, the driving force control process by the driving force control device 1 in the present embodiment is started at the timing when the ignition switch of the saddle riding type vehicle is turned on and the driving force control device 1 is activated, and the saddle riding type vehicle is activated. While the driving force control device 1 is being activated, it is repeatedly executed at predetermined control cycles.

  Specifically, as illustrated in FIG. 2 as an example, when the driving force control process by the driving force control device 1 in the present embodiment is executed during deceleration, first, the control unit 5 includes the clutch state detection unit 2 and the clutch state detection unit 2. Based on the electrical signal input from the shift operation detection unit 3, it is determined that the shift operation detection unit 3 has detected a shift operation of the dog transmission in a state where the clutch state detection unit 2 detects the connection of the main clutch. At the time (time t = t1), a target throttle opening that realizes an intake amount increased by a predetermined intake amount is calculated, and a control signal that matches the target throttle opening with the actual throttle opening is generated. , Input to the motor drive circuit 6. At this time, in order to realize the intake air amount increased by the predetermined intake air amount in this way, it is practically necessary to hold the target throttle opening at the predetermined opening for a predetermined time, and for increasing the intake air amount. The predetermined intake air amount is a difference between the opening degree NLL corresponding to the no-load line and the actual throttle opening degree, or the ratio of the actual throttle opening degree to the opening degree NLL corresponding to the no-load line in order to make the speed change smoothly and smoothly. It is preferable to set so that it is larger as is larger.

  Specifically, as shown in FIG. 2, the target throttle opening is increased from the throttle opening NLL corresponding to the no-load line from the side of the required throttle opening lower than the throttle opening NLL corresponding to the no-load line. The target throttle is calculated to be the opening, and the larger the value D1 obtained by subtracting the actual throttle opening (not shown) from the opening NLL corresponding to the no-load line, the larger the target throttle for the opening NLL corresponding to the no-load line. The increase amount D2 of the opening degree is increased, and the period P1 for maintaining the increase amount D2 is set to be longer. Instead of the difference between the opening degree NLL corresponding to the no-load line and the actual throttle opening degree, the ratio of the actual throttle opening degree to the opening degree NLL corresponding to the no-load line is used. The larger the ratio of the actual throttle opening, the larger the increase amount D2 of the target throttle opening with respect to the opening NLL corresponding to the no-load line, and the longer the period P1 for maintaining the increase D2 is set. Also good. Further, in order to realize such an increased intake amount, the opening degree NLL corresponding to the no-load line and the actual throttle are set so that one of the increase amount D2 and the period P1 for maintaining the increase amount D2 becomes longer or longer. You may set based on the difference of an opening degree, or the ratio of the actual throttle opening degree with respect to the opening degree NLL corresponding to a no-load line. Further, data relating to the increase amount D2 of the target throttle opening and the period P1 for maintaining the increase amount D2 are stored in advance in the memory.

  Next, when the control unit 5 determines that the shift operation of the dog type transmission is detected in a state where the connection of the main clutch is detected (time t = t1), the time point when the period P1 has elapsed. From the viewpoint of speedy and smooth shifting, the target throttle opening is set to the opening NLL corresponding to the no-load line from the increased opening relative to the opening NLL corresponding to the no-load line. Hold.

  Next, the control unit 5 shifts (shifts down) the shift stage of the dog transmission at the time of detection of the shift operation from the high shift stage to the low shift stage based on the electric signal input from the shift stage detection unit 4. That is, at the time when it is determined that the shift is completed (time t = t2), the target throttle opening is slightly lower than the opening NLL corresponding to the no-load line (for example, from the viewpoint of suppressing the occurrence of shift shock) The opening (several degrees lower) is maintained and the timer (program timer) starts counting. Here, the target throttle opening maintained at an opening slightly lower than the opening NLL corresponding to the no-load line is set to the opening NLL corresponding to the no-load line by the control unit 5 at the time t = t2. It is calculated by multiplying a predetermined coefficient (a fixed value smaller than 1 stored in the memory). Further, the period P2 until the timer finishes counting is calculated by the control unit 5 at the time t = t2 based on the electric signal corresponding to the crank angle of the engine input by the crank angle sensor 17. It is preferable that the higher the NE, the longer the NE. Similarly, when the shift speed of the dog type transmission is shifted (shifted up) from a low speed to a high speed, the target throttle opening is slightly lower than the opening NLL corresponding to the no-load line. It may be moved to and maintained.

  Then, the control unit 5 gradually decreases the target throttle opening toward the required throttle opening and gradually approaches the target throttle opening from the time point when the timer finishes counting (time t = t3). Will be smoothly transitioned to.

  As shown as an example in FIG. 3, when the driving force control process by the driving force control device 1 in the present embodiment is executed during acceleration, first, the control unit 5 first detects the clutch state detection unit 2 and the shift operation detection. When it is determined that the shift operation detection unit 3 has detected a shift operation of the dog transmission in a state where the clutch state detection unit 2 detects the connection of the main clutch based on the electric signal input from the unit 3 ( At time t = t11), a target throttle opening degree that realizes an intake air amount that is reduced by a predetermined intake air amount is calculated, and a control signal that matches the target throttle opening degree that the actual throttle opening degree meets is applied to the motor. Input to the circuit 6. At this time, in order to realize the intake air amount reduced by the predetermined intake air amount in this way, in practice, the target throttle opening may be held at the predetermined opening for a predetermined time, and the intake air amount may be reduced. The predetermined intake air amount is a difference between the opening degree NLL corresponding to the no-load line and the actual throttle opening degree, or the ratio of the actual throttle opening degree to the opening degree NLL corresponding to the no-load line in order to make the speed change smoothly and smoothly. It is preferable to set so that it is larger as is larger.

  Specifically, as shown in FIG. 3, the target throttle opening is reduced from the throttle opening NLL corresponding to the no-load line from the side of the required throttle opening higher than the throttle opening NLL corresponding to the no-load line. The target throttle is calculated to be the opening, and the larger the value D11 obtained by subtracting the actual throttle opening (not shown) from the opening NLL corresponding to the no-load line, the larger the target throttle for the opening NLL corresponding to the no-load line. The reduction amount D12 of the opening is set to be large, and the period P11 for maintaining the reduction amount D12 is set to be long. Instead of the difference between the opening degree NLL corresponding to the no-load line and the actual throttle opening degree, the ratio of the actual throttle opening degree to the opening degree NLL corresponding to the no-load line is used. The larger the ratio of the actual throttle opening, the larger the target throttle opening reduction amount D12 with respect to the opening NLL corresponding to the no-load line, and the longer the period P11 for maintaining the reduction amount D12. Also good. Further, in order to realize such a reduced intake amount, the opening degree NLL corresponding to the no-load line and the actual throttle are set so that one of the decrease amount D12 and the period P11 for maintaining the decrease amount D12 becomes larger or longer. You may set based on the difference of an opening degree, or the ratio of the actual throttle opening degree with respect to the opening degree NLL corresponding to a no-load line. Further, data regarding the target throttle opening reduction amount D12 and the period P11 for maintaining the reduction amount D12 are stored in advance in the memory.

  Next, when the control unit 5 determines that the shift operation of the dog-type transmission is detected in a state in which the connection of the main clutch is detected (time t = t11), and when the period P11 has elapsed. Thus, from the viewpoint of speedy and smooth shifting, the target throttle opening is set to the opening NLL corresponding to the no-load line from the opening reduced with respect to the opening NLL corresponding to the no-load line. .

  Next, the control unit 5 shifts (shifts up) the shift stage of the dog transmission from the low shift stage to the high shift stage when the shift operation is detected based on the electrical signal input from the shift stage detection unit 4. That is, at the time when it is determined that the shift is completed (time t = t12), the target throttle opening is slightly higher than the opening NLL corresponding to the no-load line from the viewpoint of suppressing the occurrence of shift shock (for example, (The opening is several degrees higher) and the timer (program timer) starts counting. Here, the target throttle opening maintained at an opening slightly higher than the opening NLL corresponding to the no-load line is set to the opening NLL corresponding to the no-load line by the control unit 5 at the time t = t12. It is calculated by multiplying a predetermined coefficient (a fixed value larger than 1 stored in the memory). Further, the period P12 until the timer finishes counting is calculated by the control unit 5 at the time t = t2 based on the electric signal corresponding to the crank angle of the engine input by the crank angle sensor 17. It is preferable that the higher the NE, the longer the NE. Similarly, when the shift speed of the dog transmission is shifted (shifted down) from a higher gear to a lower gear, the target throttle opening is slightly higher than the opening NLL corresponding to the no-load line. It may be moved to and maintained.

  Then, the control unit 5 gradually increases the target throttle opening toward the required throttle opening and gradually approaches the target throttle opening from the time (time t = t13) when the timing of the timer is completed. Will be smoothly transitioned to.

  As is apparent from the above description, in the driving force control apparatus 1 according to the present embodiment, the control unit 5 is configured such that the shift operation detecting unit 3 is a dog type in a state where the clutch state detecting unit 2 detects the connection of the main clutch. When the transmission operation of the transmission is detected, the throttle opening is changed to the opposite side across the opening NLL corresponding to the no-load line, so that the engine intake amount is the opening NLL corresponding to the no-load line. The throttle opening is controlled so as to differ by a predetermined amount of intake compared to the case where the engine is maintained at a predetermined amount of intake. Corresponds to the difference or ratio between the opening corresponding to the no-load line and the throttle opening when detected Because it is intended to be set based on, it may be performed when detecting the shifting operation of the dog type transmission in a state in which detects the connection of the main clutch, the shifting of the dog-type transmission quickly and smoothly.

  In the present invention, the type, shape, arrangement, number, and the like of the members are not limited to the above-described embodiment, and the gist of the invention is appropriately replaced such that the constituent elements are appropriately replaced with those having the same operational effects. Of course, it can be changed as appropriate without departing from the scope.

  As described above, the present invention provides a driving force capable of quickly and smoothly executing a shift of the dog transmission when a shift operation of the dog transmission is detected in a state where the connection of the main clutch is detected. A control device can be provided, and it is expected that the control device can be widely applied to a driving force control device for a vehicle or the like because of its universality.

DESCRIPTION OF SYMBOLS 1 ... Driving force control apparatus 2 ... Clutch state detection part 3 ... Shift operation detection part 4 ... Shift speed detection part 5 ... Control part 6 ... Motor drive circuit 7 ... Spark plug drive circuit 8 ... Fuel injection valve drive circuit 11 ... Clutch switch DESCRIPTION OF SYMBOLS 12 ... Shift operation switch 13 ... Gear position sensor 14 ... Throttle motor 15 ... Throttle position sensor 16 ... Accelerator opening sensor 17 ... Crank angle sensor 18 ... Spark plug 19 ... Fuel injection valve

Claims (6)

A clutch state detection unit for detecting connection or disconnection of the main clutch, which is mounted on a straddle-type vehicle that transmits engine driving force to driving wheels through a main clutch and a dog type transmission in order, and a shift of the dog type transmission A shift operation detection unit that detects an operation, a motor drive unit that drives a motor that changes the throttle opening of the engine, and the shift operation detection in a state where the clutch state detection unit detects the connection of the main clutch. The motor drive unit so that the dog-type transmission can be shifted when the dog-type transmission detects the shift operation of the dog-type transmission by disengaging or weakening the dogs of the dog-type transmission. The throttle opening is temporarily changed by controlling A driving force control device and a control unit for temporarily changing the driving force by,
A no-load line indicating the operating state of the engine capable of releasing the engagement between the dogs is preset,
The control unit detects the throttle opening when the shift operation detection unit detects the shift operation of the dog transmission in a state where the clutch state detection unit detects the connection of the main clutch. By changing the opening to the opposite side across the opening corresponding to the no-load line, the intake amount of the engine differs by a predetermined intake amount compared to the case where the throttle opening is maintained at the opening corresponding to the no-load line. Control the throttle opening,
The predetermined intake air amount is a difference between the opening corresponding to the no-load line and the throttle opening when the shift operation of the dog transmission is detected in a state where the connection of the main clutch is detected. Alternatively, the driving force control device is set based on a value corresponding to the ratio.   The predetermined intake amount is obtained by maintaining the throttle opening at a predetermined opening for a predetermined time, and at least one of the predetermined opening and the predetermined time is set based on the value. The driving force control apparatus according to claim 1.   The driving force control apparatus according to claim 1, wherein the predetermined intake air amount is set to increase as the value increases.   The said control part controls the said throttle opening so that it may become the said opening corresponding to the said no-load line, after the said predetermined intake amount is obtained. The driving force control apparatus described.   The control unit controls the throttle opening to the opening corresponding to the no-load line, and then changes the throttle opening to a required opening corresponding to the accelerator opening of the straddle-type vehicle. The driving force control device according to claim 4, wherein the driving force control device is controlled so as to gradually approach.   The control unit controls the throttle opening so as to be the opening corresponding to the no-load line after the throttle opening is shifted to the opposite side across the opening corresponding to the no-load line. 6. The driving force control apparatus according to claim 5, wherein the opening is controlled so as to gradually approach the required opening corresponding to the accelerator opening of the saddle riding type vehicle.

Images