JP2018151017A - Electronic controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic controller capable of surely detecting shift operation.SOLUTION: An electric controller 1 is configured to, when a first condition that output voltage of a shift detector 12 is not less than a first threshold set with respect to first reference voltage as a learning value learning a value of output voltage of the shift detector 12 corresponding to a neutral position of a shift pedal 21, and a second condition that output voltage of a gear position detector 13 is not less than a second threshold set with respect to second reference voltage as a learning value learning a value of output voltage of the gear position detector 13 corresponding to each gear position, are established, determine that shift is requested.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an electronic control device, and more particularly to a shift detector that detects a shift operation by a driver and an electronic control device that is mounted on a vehicle that includes a gear position detector that detects a gear position of a transmission.

  Some straddle-type vehicles such as motorcycles include a shift detector that detects a shift operation by a driver. In a vehicle provided with such a shift detector, when a shift operation by the driver is detected based on an electric signal from the shift detector, in order to enable a quick gear shift according to the shift operation, the engine operating state Some of them employ a configuration that executes engine output control, such as controlling the engine to weaken its output.

  Under such circumstances, Patent Document 1 relates to a shift control device for a motorcycle, and determines a shift operation start timing based on a detection signal of a shift operation detector composed of a load sensor provided in the shift device, and detects shift drum operation. A configuration is disclosed that includes a control unit that smoothly changes the engine output by controlling the intake air amount to the engine in accordance with the shift speed detected by the compressor. At this time, in Patent Document 1, it is determined that the shift operation has been performed when the shift operation is detected based on the output of the shift operation detector and the output voltage of the shift drum operation detector.

JP 2006-77623 A

  However, according to the study of the present inventor, in order to accurately detect the shift operation, the tolerance of the shift detector that detects the shift operation of the shift operation member by the driver and the gear position of the transmission are detected. Although it is necessary to detect the shift operation in consideration of the tolerance of the gear position detector, the configuration of Patent Document 1 does not deal with the tolerance of the shift detector and the gear position detector.

  Here, according to the study of the present inventor, the tolerances of the shift detector and the gear position detector include the detection tolerance, shift detector, and gear included in the characteristics of the shift detector itself and the gear position detector itself. Including the tolerance of installation of the position detector on the vehicle, etc., if this tolerance is not dealt with, not only the situation where the shift operation cannot be detected may occur, but also the shift operation It is conceivable that a situation in which the driving feeling or drivability of the vehicle deteriorates may occur due to the fact that quick shift control that changes gears without performing clutch operation that is to be realized according to the situation is not properly performed.

  The present invention has been made through the above-described studies, and an object thereof is to provide an electronic control device that can reliably detect a shift operation.

  In order to achieve the above object, in the first aspect, the present invention is mounted on a vehicle including an engine and a transmission for shifting the output of the engine, and for shifting operation of the gear position of the transmission. In response to a shift request that is determined using an output voltage of a shift detector that detects the shift operation of the shift operation member provided in a gear and an output voltage of a gear position detector that detects the gear position of the transmission An electronic control unit having a control unit for controlling the operating state of the engine, wherein the control unit is configured such that an output voltage of the shift detector is equal to or higher than a first threshold set with respect to a first reference voltage. And a second condition in which the output voltage of the gear position detector is equal to or greater than a second threshold set with respect to a second reference voltage, The first reference voltage is a learned value obtained by learning a value of an output voltage corresponding to a neutral position of the shift operation member of the shift detector, and the second reference voltage is The electronic control device includes, as a first condition, a learned value obtained by learning a value of an output voltage corresponding to each of the gear positions of the gear position detector.

  In addition to the first aspect, the present invention provides the control unit, wherein either one of the first condition and the second condition is established within a predetermined time after the one is established. It is a second aspect to determine that there is a shift request.

  In the present invention, in addition to the second aspect, the shift detector is provided in a connecting member that connects the shift operation member and the transmission, detects a load applied to the connecting member, and performs the control. According to a third aspect, the unit determines that the shift request is present when the first condition is satisfied after the second condition is satisfied.

  In the electronic control device according to the first aspect of the present invention, the shift is provided for a shift operation of the gear position of the transmission, which is mounted on a vehicle including an engine and a transmission that changes the output of the engine. Controls the engine operating state in response to a shift request determined using the output voltage of the shift detector that detects the shift operation of the operating member and the output voltage of the gear position detector that detects the gear position of the transmission. An electronic control device having a control unit that performs the first condition that the output voltage of the shift detector is greater than or equal to a first threshold set with respect to the first reference voltage, and the gear position. When the second condition in which the output voltage of the detector is equal to or greater than a second threshold set with respect to the second reference voltage is satisfied, it is determined that there is a shift request, and the first reference voltage is Shi This is a learned value obtained by learning the output voltage value corresponding to the neutral position of the shift operation member of the gear detector, and the second reference voltage learns the output voltage value corresponding to each gear position of the gear position detector. Including the learned value as the first condition makes it possible to reliably detect the shift operation.

  Further, according to the electronic control device according to the second aspect of the present invention, the control unit is configured so that either one of the first condition and the second condition is established within a predetermined time after the one is established. Since it is determined that there is a shift request when is established, it is possible to detect the presence or absence of a shift operation within a predetermined time.

  Further, according to the electronic control device according to the third aspect of the present invention, the shift detector is provided in the connecting member that connects the shift operation member and the transmission, detects a load applied to the connecting member, In the configuration in which the control unit is provided with a shift detector in a connecting member that connects the shift operation member and the transmission to determine that there is a shift request when the first condition is satisfied after the second condition is satisfied. A shift operation can be reliably detected.

FIG. 1 is a block diagram showing a configuration of an electronic control device according to an embodiment of the present invention. FIG. 2A is a schematic cross-sectional view showing a configuration of a dog transmission or the like to which the electronic control device according to the embodiment of the present invention is applied, and FIG. It is a typical enlarged view which shows a part of dog type transmission shown. FIG. 3 is a flowchart showing the flow of shift request determination processing in the embodiment of the present invention. FIG. 4A shows the transition of the output voltage of the shift detector and the gear position detector when the output voltage of the gear position detector is equal to or higher than the threshold before the shift detector in the embodiment of the present invention. FIG. 4B is a diagram illustrating the output voltage of the shift detector and the gear position detector when the output voltage of the shift detector is equal to or higher than the threshold before the gear position detector in the embodiment of the present invention. FIG.

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

<Configuration of electronic control device>
With reference to FIG.1 and FIG.2, the structure of the electronic control apparatus in this embodiment, a dog type transmission etc. to which it is applied is demonstrated.

  FIG. 1 is a block diagram illustrating a configuration of an electronic control device according to the present embodiment. FIG. 2 (a) is a schematic cross-sectional view showing the configuration of a dog transmission or the like to which the electronic control device according to this embodiment is applied, and FIG. 2 (b) is shown in FIG. 2 (a). It is a typical enlarged view which shows a part of dog type transmission shown.

  As shown in FIGS. 1 and 2, an electronic control unit (ECU) 1 according to this embodiment typically includes an internal combustion engine through a crankshaft 61, a main clutch 51, and a dog transmission T in order. It is mounted on a straddle-type vehicle such as a motorcycle that transmits the output of the engine (engine) E to a driving wheel (not shown) as a driving force, and controls the operating state of the engine E and the like.

  The electronic control unit 1 includes A / D (Analog to Digital) converters 2a to 2d, a waveform shaping circuit 3, a central processing unit (CPU) 4, a motor drive circuit 6, a spark plug drive circuit 7, and A fuel injection valve drive circuit 8 is provided. The CPU 4 includes a clutch state detector 5a, a shift operation detector 5b, a gear position detector 5c, a throttle opening calculator 5d, an accelerator opening calculator 5e, an engine speed calculator 5f, and a controller 5g. Yes. The clutch state detection unit 5a, shift operation detection unit 5b, gear position detection unit 5c, throttle opening calculation unit 5d, accelerator opening calculation unit 5e, and engine speed calculation unit 5f are typically controlled by the CPU 4. Although configured as functional blocks during program execution, these may be configured as electrical circuits as necessary. The electronic control device 1 includes a memory (not shown) and the like, and the memory stores a control program and control data necessary for the arithmetic processing of the CPU 4.

  Specifically, the A / D converters 2 a to 2 d are output from the shift detector 12 and are rotated by the driver (the rotation position) of the shift pedal 21, and thus a speed change operation (shift operation) via the shift pedal 21. ) Is output from the gear position detector 13, and is also output from the throttle opening sensor 15 and the throttle signal output from the throttle opening sensor 15 as well as the electrical signal indicating the rotational position (rotation angle) of the shift drum 31 of the dog type transmission T. An electric signal indicating the opening of the throttle valve (not shown) that is rotated by the motor 14 and an electric signal that is output from the accelerator opening sensor 16 and that indicates the amount of operation of the accelerator operating member (not shown) are in analog form. To digital form respectively. The A / D converters 2a to 2d output the electrical signals thus converted to digital form to the CPU 4. In addition, illustration is abbreviate | omitted about the input circuit provided in the front | former stage of A / D converter 2a-2d in the electronic control apparatus 1 for convenience.

  Here, the shift detector 12 and the gear position detector 13 are, for example, potentiometers. The shift detector 12 indicates the rotation angle of the shift shaft 22 which is the rotation shaft on the vehicle side, and the shift pedal 21 is fixed according to the shift operation by the driver of the shift pedal 21 which is a shift operation member. Outputs electrical signals. The rotation of the shift pedal 21 accompanying the shift operation by the driver is transmitted to the shift arm 23 fixed to the shift shaft 22 using the shift pedal 21 as a rotation shaft. Since a gear portion (not shown) is provided at one end portion of the shift arm 23, the rotation of the shift pedal 21 accompanying the shift operation by the driver is performed by the shift drum 31 via the gear portion of the shift arm 23. This is transmitted to a shift gear 24 fixed to a drum shaft 32 that is a rotation shaft, whereby the drum shaft 32, that is, the shift drum 31 is rotated. The gear position detector 13 outputs an electrical signal indicating the rotation angle of the drum shaft 32 according to the gear position (gear position) of the dog type transmission T.

  As the shift detector 12, a load sensor that detects a load acting on the shift pedal 21 can also be used. The shift detector 12 as a load sensor is provided in a connecting member such as a shift linkage that connects the shift pedal 21 and the dog type transmission T, detects the load applied to the connecting member, and indicates the detected load. Output a signal.

  For example, in a dog-type transmission T, assuming a configuration in which a fixed transmission gear 41 is mounted on an input shaft 46 and a free transmission gear 42 and a slide transmission gear 43 are mounted on a drive shaft 47, a shift drum is assumed. The rotation of 31 is transmitted to a shift fork 34 which is disposed in a cam groove 33 formed in the cam groove 33 and moves following the cam groove. The shift fork 34 moves correspondingly, so that the slide transmission gear 43 is moved. It is translated while mounted on the drive shaft 47. When the slide transmission gear 43 is moved toward the free transmission gear 42 and is in a position close to each other, the dog teeth 44 and 45 can be engaged with each other. In other words, when the main clutch 51 is in the connected state and the dog teeth 44 and 45 are in contact with each other and the dog teeth 44 press the dog teeth 45, the rotational force of the crankshaft 61 is applied to the main clutch 51 and the input. The shaft 46, the fixed speed change gear 41, the free speed change gear 42, the slide speed change gear 43, and the drive shaft 47 are finally transmitted to the drive wheels in this order. Further, when the main clutch 51 is in the connected state and the dog teeth 44 and 45 are in contact with each other and one of them is in the engaged state in which the other is pushed, the shift fork 34 is used to move the slide transmission gear 43 to the free transmission gear. Since it becomes difficult to move away from 42, shifting to another gear position becomes difficult. The dog teeth 44 and 45 may have a configuration in which one of them is a concave tooth that accommodates the other convex tooth, in addition to the configuration in which both are convex teeth. As the main clutch 51, a dry multi-plate friction clutch can be suitably used. A series of components from the shift pedal 21 to the shift fork 34 constitutes the shift mechanism S.

  The waveform shaping circuit 3 shapes the crank pulse signal output from the crank angle sensor 17 and indicating the rotation angle of the crankshaft 61 of the engine E, and generates a digital pulse signal. The waveform shaping circuit 3 outputs the digital pulse signal thus generated to the CPU 4. In addition, illustration is abbreviate | omitted about the input circuit provided in the front | former stage of the waveform shaping circuit 3 in the electronic control apparatus 1 for convenience.

  The clutch state detection unit 5 a detects connection or disconnection of the main clutch 51 based on an electric signal that is input from the clutch switch 11 and indicates an operation state when the driver connects or disconnects the main clutch 51. Information indicating the on / off state of the main clutch 51 detected by the clutch state detection unit 5a in this way is used by the control unit 5g. In addition, about the input circuit in the electronic control apparatus 1 into which the electric signal from the clutch switch 11 is input, illustration is abbreviate | omitted for convenience.

  The shift operation detection unit 5b is input from the shift detector 12 via the A / D converter 2a and when the driver operates the shift pedal 21 to perform the shift operation of the dog type transmission T or when the driver The shift operation of the dog type transmission T is detected based on an electric signal indicating the presence or absence of the shift operation when the shift operation is not performed. Information indicating the presence or absence of a shift operation of the dog transmission T detected by the shift operation detection unit 5b in this way is used by the control unit 5g.

  The gear position detector 5c is input from the gear position detector 13 via the A / D converter 2b and based on an electric signal indicating the rotation angle of the shift drum 31 of the dog transmission T, based on the dog type transmission. The gear position (gear position) selected by T is detected. The gear position detected in this way by the gear position detector 5c is used by the controller 5g.

  The throttle opening calculation unit 5d is inputted from the throttle opening sensor 15 via the A / D converter 2c and based on an electric signal indicating the actual opening of the throttle valve of the engine E, the actual opening of the throttle valve. (Throttle opening) is calculated. The throttle opening calculated in this way by the throttle opening calculation unit 5d is used by the control unit 5g.

  The accelerator opening calculation unit 5e calculates the accelerator opening based on an electric signal that is input from the accelerator opening sensor 16 via the A / D converter 2d and that indicates the operation amount of the accelerator operation member. The accelerator opening calculated in this way by the accelerator opening calculator 5e is used by the controller 5g. The accelerator operation member is typically an accelerator grip in a saddle riding type vehicle.

  The engine speed calculation unit 5f is inputted from the crank angle sensor 17 via the waveform shaping circuit 3 and based on an electric signal indicating the crank angle of the engine E (rotation angle of the crankshaft 61), the actual engine speed. Calculate (engine speed). The engine speed calculated in this way by the engine speed calculator 5f is used by the controller 5g.

  The controller 5g includes a gear position detected by the gear position detector 5c, a throttle opening calculated by the throttle opening calculator 5d, an accelerator opening calculated by the accelerator opening calculator 5e, and an engine speed calculator 5f. In addition to controlling the operation state of the engine E by controlling the operation of the throttle motor 14, spark plug 18, fuel injection valve 19 and the like based on the calculated engine speed and the like, the clutch state detection unit 5a is provided with the main clutch. When the shift operation detector 5b detects the shift operation of the dog transmission T by the driver's operation of the shift pedal 21 in the state where the connection of 51 is detected, the dog teeth 44 of the dog transmission T, The engagement of the 45 is disengaged or weakened so that the dog-type transmission T can be shifted so that the drive by the throttle motor 14 is driven. By adjusting the throttle opening of the Jin E, to control the operating state so as to temporarily change the output of the engine E. In such a case, specifically, when the dog teeth 44 are pushing the dog teeth 45, the control unit 5 g moves the free transmission gear 42 via the fixed transmission gear 41 so that the dog teeth 44 move away from the dog teeth 45. In order to rotate the engine E, the operating state of the engine E is controlled to change its output in a decreasing direction. On the other hand, when the dog teeth 45 are pushing the dog teeth 44, the control unit 5g should rotate the free transmission gear 42 via the fixed transmission gear 41 so that the dog teeth 44 move away from the dog teeth 45. The operating state of the engine E is controlled, and the output is changed in the increasing direction.

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

  The spark plug drive circuit 7 controls the electromotive force of a secondary coil (not shown) according to a control signal from the control unit 5g, thereby igniting the engine by the spark plug 18 of the engine E, that is, starting ignition. A series of ignition operations such as stop and restart are controlled.

  The fuel injection valve drive circuit 8 drives the fuel injection valve 19 in accordance with a control signal from the control unit 5g, thereby injecting the fuel into the engine E. The fuel injection operation of the fuel injection valve 19, that is, starting and stopping of fuel injection And a series of fuel injection operations such as restart.

  The timer 9 starts counting according to the control signal from the control unit 5g, stops counting after counting a predetermined time set in advance.

  The electronic control device 1 having the above configuration detects a shift request at a low cost and with a practically sufficient accuracy by executing the following shift request determination process, and also includes a vehicle driver. Contributes to the improvement of Hereinafter, the operation of the electronic control unit 1 when executing the shift request determination process will be described in detail with reference to FIGS. The shift request determination process will be described assuming that the dog type transmission T is a forward shift type and a six-speed return type. However, in principle, the dog type transmission T is of a reverse shift type. Thus, the number of gear positions may be different from the sixth speed, or may be a rotary type.

<Shift request determination processing>
With reference to FIGS. 3 and 4, the specific flow of the shift request determination process in the present embodiment will be described in detail.

  FIG. 3 is a flowchart showing the flow of shift request determination processing in the embodiment of the present invention. FIG. 4A shows the transition of the output voltage of the shift detector and the gear position detector when the output voltage of the gear position detector is equal to or higher than the threshold before the shift detector in the embodiment of the present invention. FIG. 4B is a diagram illustrating the output voltage of the shift detector and the gear position detector when the output voltage of the shift detector is equal to or higher than the threshold before the gear position detector in the embodiment of the present invention. FIG.

  The shift request determination process in the present embodiment starts when the ignition switch of the straddle-type vehicle is switched from the off state to the on state and the ECU 1 is activated, and the shift request determination process proceeds to step S1. Such shift request determination processing is repeatedly executed at predetermined control cycles while the ignition switch of the saddle riding type vehicle is on and the ECU 1 is activated.

  In the process of step S1, the control unit 5g determines whether or not the output voltage SFS of the shift detector 12 input from the A / D converter 2a in the shift operation detection unit 5b is greater than or equal to the threshold value TH1.

  As a result of the determination, when the first condition that the output voltage SFS is equal to or higher than the threshold value TH1 is satisfied, the control unit 5g causes the timer 9 to start counting and shift when the timer 9 does not start counting. The request determination process proceeds to the process of step S2. As described above, when the output voltage SFS becomes equal to or higher than the threshold value TH1 and deviates from the reference voltage Vref1 by a predetermined value or more, the control unit 5g advances the shift request determination process to the process of step S2. Note that the control unit 5g continues counting by the timer 9 when the timer 9 starts counting.

  On the other hand, when the output voltage SFS is less than the threshold value TH1, the control unit 5g advances the shift request determination process to the process of step S5.

  Here, the threshold value TH1 is set in advance with respect to the reference voltage Vref1. The threshold value TH1 is set by adding a predetermined voltage value to the reference voltage Vref1.

  The reference voltage Vref1 is a learning value obtained by learning the value of the output voltage corresponding to the neutral position of the shift operation member of the shift detector 12, and is set by executing a predetermined learning process. The neutral position is a position corresponding to the non-operation state of the shift operation member. This learning process is a process for detecting the reference voltage Vref1 based on the clutch state detected by the clutch state detector 5a, the engine speed calculated by the engine speed calculator 5f, the vehicle speed detected by a vehicle speed detector (not shown), and the like. It is.

  Thus, by setting the threshold value TH1 based on the reference voltage Vref1 that is the learning value, it is possible to reliably detect that the shift pedal 21 has been operated for the shift operation.

  In the process of step S2, the control unit 5g determines whether or not the output voltage GPS of the gear position detector 5c input from the A / D converter 2b in the gear position detection unit 5c is greater than or equal to a threshold value TH2.

  As a result of the determination, when the second condition that the output voltage GPS is equal to or higher than the threshold value TH2 is satisfied, the control unit 5g advances the shift request determination process to the process of step S3. Thus, the control unit 5g advances the shift request determination process to the process of step S3 when the output voltage GPS becomes equal to or higher than the threshold value TH2 and deviates from the reference voltage Vref2 by a predetermined value or more. On the other hand, when the output voltage GPS is less than the threshold value TH2, the control unit 5g ends the shift request determination process.

  Here, the threshold value TH2 is set in advance with respect to the reference voltage Vref2. The threshold value TH2 is set by adding a predetermined voltage value to the reference voltage Vref2.

  The reference voltage Vref2 is a learning value obtained by learning the value of the output voltage corresponding to each gear position detected by the gear position detector 13, and is set by executing a predetermined learning process. Such learning processing is performed by the gear position detector 13 when a predetermined time elapses when the difference between the maximum value and the minimum value of the output voltage of the gear position detector 13 within a predetermined time is within a predetermined range at each gear position. This is a process for detecting the output voltage.

  Thus, by setting the threshold value TH2 based on the reference voltage Vref2 that is a learning value, it is possible to reliably detect that the gear position has been changed.

  In the process of step S3, the control unit 5g determines whether or not it is within a predetermined time based on the count value of the timer 9.

  As a result of the determination, if it is within the predetermined time, the control unit 5g advances the shift request determination process to the process of step S4. On the other hand, when it is outside the predetermined time, the control unit 5g ends the shift request determination process.

  In the process of step S4, the control unit 5g determines the shift request. Thereby, the process of step S4 is completed and the shift request determination process ends. When the control unit 5g completes the process of step S4 and ends the shift request determination process, the control unit 5g performs predetermined control such as quick shift control for changing the gear position without clutch operation.

  In the process of step S5, the control unit 5g determines whether or not the output voltage GPS of the gear position detector 5c input from the A / D converter 2b by the gear position detector 5c is greater than or equal to the threshold value TH2.

  As a result of the determination, if the output voltage GPS is equal to or higher than the threshold value TH2, the control unit 5g causes the timer 9 to start counting, determines that there is no shift request, and ends the shift request determination process. On the other hand, when the output voltage GPS is less than the threshold value TH2, the control unit 5g advances the shift request determination process to the process of step S6.

  In step S6, the control unit 5g determines that there is no shift request and resets the timer 9. Thereby, the process of step S6 is completed and the shift request determination process ends.

  Next, the shift request determination process will be specifically described with reference to FIGS. 4 (a) and 4 (b).

  First, shift request determination processing when the output voltage of the gear position detector 13 is equal to or higher than the threshold before the shift detector 12 will be described with reference to FIG.

  At time t = t1, the driver of the saddle riding type vehicle performs a shift operation. At this time, the control unit 5g does not finalize the shift request because the output voltage SFS is less than the threshold value TH1 and the output voltage GPS is less than the threshold value TH2.

  At time t = t2, the output voltage SFS is less than the threshold value TH1 and the output voltage GPS is equal to or greater than the threshold value TH2. At this time, the control unit 5g starts counting by the timer 9 and does not finalize the shift request.

  At time t = t3, the output voltage SFS is equal to or higher than the threshold value TH1, and the output voltage GPS is equal to or higher than the threshold value TH2. At this time, the control unit 5g confirms the shift request within a predetermined time because the timer 9 is counting.

  Then, the timer 9 finishes counting at time t = t4.

  Here, the control unit 5g does not execute the processing from step S2 to step S4 in FIG. 3 and the processing in step S6 between the time t = t2 and the time t = t3, but in steps S1 and S5. Execute the process.

  When the output voltage SFS becomes equal to or higher than the threshold TH1 after the time t = t4 has elapsed, the control unit 5g does not exceed the threshold TH1 and the output voltage GPS does not exceed the threshold TH2 within a predetermined time. Therefore, the shift request is not confirmed.

  As described above, when the output voltage SFS of the shift detector 12 is equal to or higher than the threshold value TH1 and the output voltage GPS of the gear position detector 13 is equal to or higher than the threshold value TH2, it is determined that there is a shift request. In the mechanism that detects the load applied to the connecting member by the shift detector 12 provided on the connecting member that connects the transmission T, the output voltage of the gear position detector 13 changes according to the shift operation. The shift operation can be reliably detected in the case shown in FIG. 4A in which the change in the output voltage of the shift detector 12 occurs after the occurrence.

  Next, shift request determination processing when the output voltage of the shift detector 12 is equal to or higher than the threshold before the gear position detector 13 will be described with reference to FIG.

  At time t = t11, the driver of the saddle riding type vehicle performs a shift operation. At this time, the control unit 5g does not finalize the shift request because the output voltage SFS is less than the threshold value TH1 and the output voltage GPS is less than the threshold value TH2.

  At time t = t12, the output voltage SFS is equal to or higher than the threshold value TH1, and the output voltage GPS is lower than the threshold value TH2. At this time, the control unit 5g starts counting by the timer 9 and does not finalize the shift request.

  At time t = t13, the output voltage SFS is equal to or higher than the threshold value TH1, and the output voltage GPS is equal to or higher than the threshold value TH2. At this time, since the timer 9 is counting, the control unit 5g determines that the shift request is within a predetermined time.

  Then, the timer 9 finishes counting at time t = t14.

  Here, the control unit 5g executes the processing of step S1 and step S2 without executing the processing from step S3 to step S6 in FIG. 3 between time t = t12 and time t = t13.

  When the output voltage GPS becomes equal to or higher than the threshold value TH2 after the time t = t14 has elapsed, the control unit 5g has the output voltage SFS not higher than the threshold value TH1 and the output voltage GPS not higher than the threshold value TH2 within a predetermined time. Therefore, the shift request is not confirmed.

  In the electronic control device according to the present embodiment described above, the first condition that the output voltage SFS of the shift detector 12 is equal to or higher than the threshold value TH1 set with respect to the first reference voltage, and the output of the gear position detector 13. When the second condition that the voltage GPS is equal to or higher than the threshold value TH2 set with respect to the second reference voltage is satisfied, it is determined that there is a shift request, and the first reference voltage is A learning value obtained by learning the value of the output voltage corresponding to the neutral position of the shift operation member, and the second reference voltage is a learned value obtained by learning the value of the output voltage corresponding to each gear position of the gear position detector 13. As a result, the shift operation can be reliably detected.

  Further, in the electronic control device according to the present embodiment, it is determined that there is a shift request when either one of the first condition and the second condition is satisfied and the other is satisfied within a predetermined time. Therefore, the presence / absence of a shift operation can be detected within a predetermined time.

  In the electronic control device according to the present embodiment, the load applied to the connecting member is detected by the shift detector 12 provided on the connecting member that connects the shift operation member and the transmission, and the second condition is satisfied. Since it is determined that there is a shift request later when the first condition is satisfied, the shift operation can be reliably detected in the configuration in which the shift detector is provided on the connecting member that connects the shift operating member and the transmission.

  In the present invention, the type, shape, arrangement, number, etc. of the members are not limited to the above-described embodiments, and the constituent elements thereof are appropriately replaced with those having the same operational effects, etc. Of course, it can be changed as appropriate within range 2.

  Specifically, in this embodiment, it is determined that there is a shift request when the output voltage SFS is equal to or higher than the threshold TH1 and the output voltage GPS is equal to or higher than the threshold TH2 within a predetermined time. Regardless of whether or not the output voltage SFS is equal to or higher than the threshold value TH1 and the output voltage GPS is equal to or higher than the threshold value TH2, it may be determined that there is a shift request.

  As described above, the present invention can provide an electronic control device that can reliably detect a shift operation, and is widely applied to an internal combustion engine control device such as a motorcycle because of its general-purpose characteristics. Expected to gain.

E ... Engine (Internal combustion engine)
T ... Dog type transmission S ... Shift mechanism 1 ... Electronic control unit (ECU)
2a to 2d A / D converter 3 Waveform shaping circuit 4 Central processing unit (CPU)
5a ... Clutch state detection unit 5b ... Shift operation detection unit 5c ... Gear position detection unit 5d ... Throttle opening calculation unit 5e ... Accelerator opening calculation unit 5f ... Engine speed calculation unit 5g ... Control unit 6 ... Motor drive circuit 7 ... Spark plug drive circuit 8 ... Fuel injection valve drive circuit 9 ... Timer 11 ... Clutch switch 12 ... Shift detector 13 ... Gear position detector 14 ... Throttle motor 15 ... Throttle opening sensor 16 ... Accelerator opening sensor 17 ... Crank angle sensor DESCRIPTION OF SYMBOLS 18 ... Spark plug 19 ... Fuel injection valve 21 ... Shift pedal 22 ... Shift shaft 23 ... Shift arm 24 ... Shift gear 31 ... Shift drum 32 ... Drum shaft 33 ... Cam groove 34 ... Shift fork 41 ... Fixed transmission gear 42 ... Free transmission gear 43 ... Slide gears 44, 45 ... Dog teeth 46 ... Emissions output shaft 47 ... Drive shaft 51 ... main clutch 61 ... crankshaft

Claims (3)

A shift detector mounted on a vehicle having an engine and a transmission for shifting the output of the engine and detecting a shift operation of a shift operation member provided for a shift operation of a gear position of the transmission. An electronic control unit having a control unit that controls an operating state of the engine in response to a shift request determined using an output voltage and an output voltage of a gear position detector that detects the gear position of the transmission. There,
The controller is
A first condition in which an output voltage of the shift detector is equal to or greater than a first threshold set with respect to a first reference voltage; and an output voltage of the gear position detector with respect to a second reference voltage. When the second condition that is equal to or greater than the set second threshold is satisfied, it is determined that there is the shift request,
The first reference voltage is:
A learning value obtained by learning a value of an output voltage corresponding to a neutral position of the shift operation member of the shift detector,
The second reference voltage is
A learning value obtained by learning a value of an output voltage corresponding to each of the gear positions of the gear position detector,
An electronic control device characterized by that. The controller is
Determining that there is the shift request when either one of the first condition and the second condition is established within a predetermined time after the one is established;
The electronic control device according to claim 1. The shift detector is
Provided in a connecting member that connects the shift operation member and the transmission, and detects a load applied to the connecting member;
The controller is
Determining that the shift request is present when the first condition is satisfied after the second condition is satisfied;
The electronic control device according to claim 2.

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