Straddle-type vehicle

Abstract

A straddle-type vehicle is provided with a control mechanism that controls automatic stop of an engine and restart after the automatic stop. The control mechanism performs: normal start control that starts the engine based on a start operation by a rider; and restart control that restarts the engine based on fulfillment of a restart condition in a stop of the engine resulting from the automatic stop. In the restart control in a state in which a manual transmission is in a gear-engaged state, the restart control is ended and the normal start control is performed in a case where it is detected that a side stand is in a stand-up position.

Description

Technical Field

[0001] This invention relates to a straddle-type vehicle. Background Technology

[0002] A motorcycle with an idle stop function has been proposed. In such a motorcycle, the engine automatically stops when the motorcycle is temporarily stopped while waiting at a green light, thus improving fuel efficiency. Patent Document 1 discloses an idle stop control technology for a motorcycle equipped with a manual transmission. In the control technology of Patent Document 1, the manual transmission automatically stops the engine while in gear, and requires throttle opening and clutch disengagement as conditions for engine restart. Therefore, after the engine automatically stops and restarts, it prevents the motorcycle from lurching forward abruptly and reflects the rider's starting intention.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent No. 5750020 Summary of the Invention

[0006] The problem that the invention aims to solve

[0007] Consider the scenario where, after the engine automatically stops, the rider directly parks the motorcycle and dismounts. If, upon re-riding, the rider forgets that the motorcycle was idle and the conditions for restarting happen to be met, and the engine restarts, it can sometimes cause discomfort.

[0008] The purpose of this invention is to provide a straddle-type vehicle capable of restarting the engine in accordance with the rider's intention.

[0009] means for solving problems

[0010] According to the present invention,

[0011] A motorcycle (10) is provided, which includes:

[0012] Engine (40);

[0013] A manual transmission (42) is connected to the engine (40) via a clutch (43) to change the speed of the engine (40) and output the rotation.

[0014] Side bracket (63) is configured to swing between an upright position and a stowed position, in which the upright position supports the vehicle body in a tilted state along the vehicle width direction;

[0015] Position detection mechanism (116) detects the position of the side bracket (63); and

[0016] The control mechanism (100) controls the automatic stop and restart of the engine (40) after automatic stop.

[0017] Its features are,

[0018] The control mechanism (100) performs the following:

[0019] Normally, the start control waits for the rider's start operation and starts the engine (40) based on the start operation; and

[0020] Restart control waits for the restart conditions to be met during the shutdown of the engine (40) caused by the automatic stop, and restarts the engine (40) based on the metness of the restart conditions.

[0021] In the restart control when the manual transmission (42) is in gear, while waiting for the restart condition to be met, if the position detection mechanism (116) detects that the side support (63) is in the upright position, the control mechanism (100) ends the restart control and executes the normal start control.

[0022] Invention Effects

[0023] According to the present invention, a straddle-type vehicle capable of restarting the engine in accordance with the rider's intentions can be provided. Attached Figure Description

[0024] Figure 1 This is a left view of a straddle-type vehicle according to an embodiment of the present invention.

[0025] Figure 2 yes Figure 1 A top view of a straddle-type vehicle.

[0026] Figure 3 yes Figure 1 A block diagram of the control device for a straddle-type vehicle.

[0027] Figure 4 This is a flowchart representing a processing example executed by the control unit.

[0028] Figure 5 This is a flowchart representing a processing example executed by the control unit.

[0029] Figure 6 This is a flowchart representing a processing example executed by the control unit.

[0030] Figure 7This is a flowchart representing a processing example executed by the control unit.

[0031] Figure 8 This is a flowchart representing a processing example executed by the control unit. Detailed Implementation

[0032] Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. Furthermore, the following embodiments are not intended to limit the invention to which the technical solution pertains. Additionally, not all combinations of features described in the embodiments are necessarily essential to the invention. Two or more features from the plurality of features described in the embodiments may be arbitrarily combined. Furthermore, identical or identical components are labeled with the same reference numerals, and repeated descriptions are omitted.

[0033] <Overview of motorcycle-type vehicles>

[0034] Figure 1 This is a left view of a straddle-type vehicle 10 according to one embodiment of the present invention. Figure 2 This is a top view of the straddle-type vehicle 10. Figure 3 This is a block diagram of the control device for the straddle-type vehicle 10. (Example) Figure 1 and Figure 2 As indicated by the arrows, the overall length direction of the vehicle is referred to as the front-to-back direction, the width direction as the left-to-right direction, and the height direction as the up-and-down direction. Sometimes, the straddle-type vehicle 10 is simply referred to as vehicle 10. Vehicle 10 is a bare-frame motorcycle, but the present invention can also be applied to various straddle-type vehicles, including other types of motorcycles.

[0035] Vehicle 10 has a double-cradle type body frame 12. The body frame 12 has a head tube 14, a pair of left and right main frames 16, and a lower frame 18. The pair of left and right main frames 16 branch off from the head tube 14 and extend slowly rearward and downward, and then extend downward via bends 16a. The lower frame 18 branches off from the head tube 14 and extends obliquely rearward below the main frames 16, and then extends generally horizontally rearward via bends 18a, connecting to the rear end of the main frames 16.

[0036] The vehicle body frame 12 also includes a pair of left and right seat frames 20, a pair of left and right pivot plates 22, and a pair of left and right reinforcing struts 24. The pair of left and right seat frames 20 extend slightly rearward and upward from near the bend 16a of the pair of left and right main frames 16. The pair of left and right pivot plates 22 are located near the rear end of the main frame 16. The pair of left and right reinforcing struts 24 extend obliquely rearward and upward from near the location of the pivot plates 22 on the main frame 16 and connect to the seat frames 20. Pivots 26 are provided on the pair of left and right pivot plates 22.

[0037] A side bracket 63 is provided on the vehicle frame 12. The side bracket 63 is configured to be able to Figure 1 The dotted line indicates the standing position and the position in Figure 1 The vehicle swings between the storage positions indicated by the solid line in the center. The side bracket 63 supports the vehicle 10, which is tilted to the left in the vehicle width direction, when it is in the upright position.

[0038] The left and right front forks 28 are rotatably supported by the head tube 14, and the handlebars 32 for steering are mounted on the upper end of the left and right front forks 28 via the top bridge 30a.

[0039] An instrument panel 34, including a speedometer, is mounted on the top bridge 30a. A headlight 36 illuminating the front of the vehicle 10 and a pair of left and right forward turn signals 37 are located in front of the head tube 14. The forward turn signals 37 also function as position lights. The position lights can also be different from the forward turn signals 37. The front wheel WF is supported by a pair of left and right rotatable front forks 28, and a front fender 38 is mounted on the upper part of the front wheel WF.

[0040] An engine 40 and a manual transmission 42 are disposed between the main frame 16 and the lower frame 18. The engine 40 is, for example, a single-cylinder, four-stroke, DOHC engine, equipped with a throttle valve 52 for adjusting the intake air volume, a fuel injection device (injector) 40b for injecting fuel, and an ignition device 40c for igniting the air-fuel mixture in the combustion chamber. A fuel tank 44 for holding the fuel supplied to the engine 40 is mounted above the engine 40 and above the front side of the main frame 16. An exhaust pipe 46 is mounted on the engine 40, and a muffler 48 is connected to the exhaust pipe 46. An oil cooler 50 is located in front of the engine 40 and in front of the lower frame 18. The throttle valve 52 of the engine 40 and an air filter 54 for purifying the air supplied to the engine 40 through the throttle valve 52 are located behind the engine 40.

[0041] Electric motor 41 is connected to engine 40. Electric motor 41 functions as a starter to start engine 40 and as an alternator that generates electricity driven by engine 40.

[0042] The manual transmission 42 is connected to the engine 40 via a clutch 43, changing the rotation of the engine 40 transmitted to the rear wheel WR and outputting power. The manual transmission 42 is a constantly engaged transmission that shifts between, for example, gear ratios from first to sixth and neutral, depending on the rider's operation of the gear shift pedal 88. Selecting any of the gear ratios from first to sixth is referred to as engaging a gear. The gear shift pedal 88 is a gear shifting mechanism located in front of the left footrest 64 in a manner operable by the rider. The rider places their left foot on the left footrest 64 and operates the gear shift pedal 88 with their left foot, thereby switching the state of the manual transmission 42. The clutch 43 is, for example, a wet multi-plate coil spring type manual clutch, which connects or disconnects the transmission of driving force between the engine 40 and the manual transmission 42.

[0043] The swing arm 56 is pivotally supported on a pair of left and right pivot plates 22 via a pivot 26 in a generally vertical direction. A rear shock absorber 58 is clamped between the upper rear end of the swing arm 56 and the seat frame 20. The rear wheel WR, which serves as the drive wheel, is rotatably supported at the rear end of the swing arm 56. The driving force of the engine 40 is transmitted to the rear wheel WR via a manual transmission 42 and a chain 60. A pair of left and right pedal holders 62 extending rearward are fixed to the pair of left and right pivot plates 22. Rider pedals 64 and passenger pedals 66 are mounted on the front and rear of the pair of left and right pedal holders 62, respectively.

[0044] A tandem seat 68 is installed behind the fuel tank 44 and on the upper part of the seat frame 20 for the rider and passenger to sit (straddle). The seat 68 is a tandem seat consisting of a rider seat 68a for the rider and a passenger seat 68b for the passenger. A pair of left and right handrails 70 for the passenger to hold onto and a rear turn signal 72 are installed at the rear of the seat frame 20. A rear fender 74 is located at the rear of the seat frame 20, and a taillight 76 is installed on the rear fender 74.

[0045] like Figure 2 As shown, a throttle handle 80 is provided on the right end of the handlebar 32, and is rotatable relative to the handlebar 32. The throttle handle 80 is configured to be operated by the rider, allowing the rider to adjust the opening of the throttle valve 52. In this embodiment, the throttle handle 80 and the throttle valve 52 are physically connected by a mechanical wire. However, a drive-by throttle method can also be used where the throttle handle 80 and the throttle valve 52 are not physically connected, and the rider's throttle operation (accelerator operation) is converted into an electrical signal to control the throttle valve.

[0046] A brake lever 82 is located on the handlebar 32, in front of the throttle handle 80. The brake lever 82 is a brake operating element that allows the rider to operate and apply braking force to the front wheel WF of the vehicle 10. The rider operates the brake lever 82 with his right hand, thereby activating the brake (not shown) located on the front wheel WF and applying braking force to the front wheel WF.

[0047] A foot-operated brake pedal 84 is located in front of the right foot pedal 64. The foot-operated brake pedal 84 is a brake operating component that can be operated by the rider to apply braking force to the rear wheel WR of the vehicle 10. The rider places his right foot on the right foot pedal 64 and operates the foot-operated brake pedal 84 with his right foot, thereby activating the brake (not shown) on the rear wheel WR and applying braking force to the rear wheel WR.

[0048] Additionally, a clutch lever 86 is located on the handlebar 32, at the front of the left end. The clutch lever 86 is configured as a clutch operating element that allows the rider to operate the clutch 43 intermittently. When the rider pulls the clutch lever 86, the clutch 43 is disengaged; when released, it is engaged.

[0049] <Control Device>

[0050] Main reference Figure 3 The control device of vehicle 10 will be described. Vehicle 10 includes a control unit (ECU) 100. The control unit 100 includes a processor, such as a CPU, storage devices such as semiconductor memory, input / output interfaces for external devices, sensor signal processing circuits, and actuator drive circuits. The storage devices store the program executed by the processor and the data used by the processor during processing. Multiple processors and storage devices may be provided.

[0051] The control unit 100 acquires the detection results from various sensors 110-117 to control the engine 40 and the electric motor 41. The throttle operation sensor 110 detects the rider's operation of the throttle handle 80. It can be a sensor located on the throttle handle 80 to detect the amount of rotation of the throttle handle 80, or a sensor located on the throttle valve 52 to detect the throttle opening. The clutch operation sensor 111 detects the rider's operation of the clutch lever 86. It can be a sensor located on the clutch lever 86 to detect when the lever is pulled (disengagement operation), or a sensor located on the clutch 43 to detect the rotation of the clutch arm.

[0052] The power switch 112 is used to switch the power supply of the vehicle 10 on and off. The power switch (main switch) 112 is, for example, a push-button switch that can be operated by inserting a button, and is located near the center of the handlebar 32. When the power switch 112 is switched on, power can be supplied to electrical components such as the headlight 36, and the engine 40 can be started. When the power switch 112 is switched off, power cannot be supplied to electrical components, and the engine 40 cannot be started.

[0053] Engine speed sensor 113 is a sensor that detects the speed of engine 40. Gear position sensor 114 is a sensor that detects the state of manual transmission 42 (any of first to sixth gear or neutral). Vehicle speed sensor 115 is a sensor that detects the speed of vehicle 10, for example, a sensor that detects the rotation of the front wheel WF.

[0054] The side bracket position sensor 116 is a sensor that detects the position of the side bracket 63, whether the side bracket 63 is in the retracted position or the upright position. For example, the side bracket position sensor 116 can be a switch that turns on when the side bracket 63 is in the upright position and turns off when it is in the retracted position.

[0055] The starter switch 117 is a switch for the rider to indicate the start of the engine 40, and is located, for example, on the right side of the handlebar 32. When the power switch 112 is on, and the rider turns the starter switch 117 on, the control unit 100 receives this as a start operation and starts the engine 40. In this embodiment, although the starter switch 117 is provided independently of the power switch 112, the power switch 112 can also serve as the starter switch 117. In this case, the power switch 112 can also be referred to as the starter switch, and the power switch 112 can have three states: ACC on (power on), ignition on (start operation), and off (power off).

[0056] <Processing Example>

[0057] Reference Figures 4-8 An example of processing by the control unit 100 will be described. Figures 4-8 This is a flowchart representing a processing example executed by the processor of the control unit 100.

[0058] <Normal Start-up Control>

[0059] Figure 4This describes a typical start control procedure. The typical start control is executed when the power switch 112 is turned on. It waits for the rider to perform a start operation on the starter switch 117, and then starts the engine 40 based on that start operation. The typical start control is a basic start control used by the rider to start the engine 40 when they enter the vehicle 10. It is also a control that starts the engine 40 by turning on the starter switch 117 when the rider turns on the power switch 112.

[0060] In S1, the detection results of each sensor are acquired. In S2, based on the detection results acquired in S1, it is determined whether the engine 40 is in a start-permitted state. A start-permitted state refers to, for example, the manual transmission 42 being in neutral. Other start-permitted states include, for example, the manual transmission 42 being in gear but the clutch 43 being disengaged, and the side support 63 being retracted. If the start-permitted state is determined, proceed to S3.

[0061] S3 is a process used to detect the starting operation performed by the rider and determine whether the starter switch 117 is turned on. If it is turned on, proceed to S4, where the electric motor 41 is used as a starter to drive and start the engine 40.

[0062] <Idle Stop Control>

[0063] right Figures 5-7 The following is an example of the processing. The control unit 100 performs idle stop control of the engine 40. In the idle stop control, the engine 40 is automatically stopped when the vehicle 10 is temporarily stopped due to waiting for a green light, and the engine 40 is restarted when it is presumed that the vehicle 10 will start moving after the automatic stop.

[0064] Automatic Stop Control

[0065] Figure 5 This describes a processing example related to the automatic stop of engine 40. In S11, the detection results of each sensor are acquired. In S12, based on the detection results acquired in S11, it is determined whether a pre-defined idle stop condition is met. If the idle stop condition is determined to be met, the process proceeds to S13.

[0066] As conditions for idling stop, examples include situations where the vehicle speed is below a specified speed (e.g., 3 km / h) and no throttle opening operation by the rider is detected within a specified time period (e.g., 3 seconds). Furthermore, examples include situations where, with the manual transmission 42 in gear, no clutch disengagement operation by the rider is detected within a specified time period (e.g., 3 seconds), and when the manual transmission 42 is in neutral, no clutch disengagement operation by the rider is detected within a specified time period (e.g., 3 seconds). Alternatively, conditions may include the headlight 36 being turned off and the rider's prior permission for idling stop control to be executed (by setting an idling stop switch to "on").

[0067] In S13, the engine 40 is automatically stopped. For example, the engine 40 can be stopped by cutting off the fuel supply based on the fuel injection device 40b, or by stopping the ignition based on the ignition device 40c.

[0068] Restart Control

[0069] Figure 6 This example illustrates restart control that restarts engine 40 after an automatic stop. In restart control, the engine 40 waits for a restart condition to be met while it is stopped due to an automatic stop, and then restarts engine 40 based on the met restart condition.

[0070] In S21, the detection results of each sensor are acquired. In S22, based on the detection results of the side bracket position sensor 116 acquired in S21, it is determined whether the side bracket 63 is in the upright state. If it is in the upright state, proceed to S26; if it is in the folded state, proceed to S23.

[0071] In S23, the determination of whether the restart condition has been met is performed. Figure 7 This is a flowchart illustrating this example. In S31, based on the detection result of the clutch operation sensor 111 obtained in S21, it is determined whether the rider's disengagement operation on the clutch 43 has been detected. If it is detected, proceed to S32; if it is not detected, proceed to S35 and determine that the stop is maintained (the restart condition is not met).

[0072] In S32, based on the detection result of the gear position sensor 114 obtained in S11, it is determined whether the manual transmission 42 is in gear or neutral. If it is in gear, proceed to S33; if it is in neutral, proceed to S34 and determine that the restart condition has been met. In this embodiment, if the manual transmission 42 is in neutral and there is a disengagement operation of the clutch 43, it is considered that the rider intends to restart the engine 40, and the engine 40 is restarted only as a condition based on this detection. However, other conditions may be added to the restart condition.

[0073] In S33, based on the detection result of the throttle operation sensor 110 obtained in S21, it is determined whether the rider's operation of opening the throttle 52 (rotating the throttle handle 80) has been detected. If detected, the process proceeds to S34 and it is determined that the restart condition is met; if not detected, the process proceeds to S35 and it is determined that the vehicle remains stationary (the restart condition is not met). When the manual transmission 42 is in gear, not only the disengagement of the clutch 43 but also the opening of the throttle 52 is included in the restart condition. As a result, when the rider intends to start immediately, the output of the engine 40 during restart is improved, and engine stall can be prevented. Furthermore, in this embodiment, although the disengagement of the clutch 43 and the opening of the throttle 52 are used as restart conditions when the manual transmission 42 is in gear, it is also possible to use only the disengagement of the clutch 43 as the restart condition, similar to the neutral position. In addition, other conditions can be added to the restart conditions.

[0074] return Figure 6 In S24, if it is determined that the restart condition in S23 has been met, proceed to S25 and restart the engine 40; otherwise, wait for the restart condition to be met. In S25, drive the electric motor 41 as a starter to supply fuel based on the fuel injection device 40b and ignite based on the ignition device 40c to drive the engine 40. Drive the electric motor 41 as a starter to restart the engine 40.

[0075] Next, with the side support 63 in the upright position, let's assume the rider directly stops the vehicle 10 and gets off. If, upon getting back on, the rider forgets that the vehicle was at idle, and the conditions for restarting happen to be met and the engine restarts, it can sometimes cause discomfort. In particular, with the manual transmission 42 in gear, if the rider operates the vehicle 10 and happens to operate the clutch lever 86 and throttle handle 80, the engine 40 may restart, causing the vehicle 10 to move forward and startling the rider.

[0076] Therefore, in this embodiment, when the manual transmission 42 is in gear, while waiting for the restart condition to be met, if the side support 63 is detected to be in the upright position, the restart control ends and normal start control is executed.

[0077] In S26, based on the detection result of the gear position sensor 114 obtained in S21, it is determined whether the manual transmission 42 is in gear or neutral. If it is in neutral, proceed to S23; if it is in gear, proceed to S27. In S27, the restart control is set to end. Since no action is taken... Figure 6 Therefore, even if the restart conditions are met, engine 40 will not restart.

[0078] In this embodiment, even when the side support 63 is in the upright position, restart control continues when the manual transmission 42 is in neutral, and the engine 40 is restarted based on the fulfillment of the restart conditions. This is because it is considered that if the engine 40 is restarted when the manual transmission 42 is in neutral, the vehicle 10 will not move forward, thus reducing the likelihood of the rider being surprised. However, it is also possible to configure the restart control to end in the same manner as when the manual transmission 42 is in gear, without distinguishing based on the state of the manual transmission 42.

[0079] In S28, a light switching process is performed. Here, with the headlight 36 illuminated, the headlight 36 is turned off, and the position light 37 is illuminated. Taking into account the time required for the engine 40 to start due to the vehicle 10 being parked, power consumption can be reduced, and the rider is notified that restart control has ended and the engine 40 will not restart.

[0080] In S29, the power disconnection timer is activated. The power disconnection timer is a timer that keeps track of a predetermined time (called the power disconnection time, for example, 3 minutes) until the power to the vehicle 10 is disconnected; it may be a software timer. In S30, the start of normal start control is set. Hereinafter, to start the engine 40, refer to... Figure 4 As explained, the engine 40 needs to be started (starter switch 117 needs to be turned on).

[0081] Figure 8 This illustrates an example of the processing related to the power disconnection timer following the action in S29. In cases of long parking periods, power consumption can be reduced by disconnecting the power supply to vehicle 10.

[0082] In S41, it is determined whether the power disconnection timer should be activated; if it is, proceed to S42. In S42, it is determined whether a power disconnection time has elapsed since the value of the power disconnection timer; if so, proceed to S43. In S43, the power disconnection timer is terminated, and the power supply to the vehicle 10 is disconnected. Based on this power disconnection, the power supply to the electrical components of the vehicle 10 is cut off. The control unit 100 may also be included in the electrical components to which the power supply is cut off. This reduces the power consumption of the vehicle 10. Hereinafter, in order to start the engine 40, it is not sufficient to start the engine 40 by performing the engine start operation (turning on the starter switch 117). The power supply to the vehicle 10 is turned on again by performing the power switch 112 operation, thereby starting the normal start control ( Figure 4 This allows the engine 40 to be started under the start permission state (starter switch 117 is turned on) and the engine 40 to start.

[0083] <Summary of Implementation Methods>

[0084] The above embodiments disclose at least the following straddle-type vehicles.

[0085] 1. The straddle-type vehicle (10) of the above embodiment includes:

[0086] Engine (40);

[0087] A manual transmission (42) is connected to the engine (40) via a clutch (43) to change the speed of the engine (40) and output the rotation.

[0088] Side bracket (63) is configured to swing between an upright position and a stowed position, in which the upright position supports the vehicle body in a tilted state along the vehicle width direction;

[0089] Position detection mechanism (116) detects the position of the side bracket (63); and

[0090] The control mechanism (100) controls the automatic stop and restart of the engine (40) after automatic stop.

[0091] in,

[0092] The control mechanism (100) performs the following:

[0093] Normally, the start control waits for the rider's start operation and starts the engine (40) based on the start operation; and

[0094] Restart control waits for the restart conditions to be met during the shutdown of the engine (40) caused by the automatic stop, and restarts the engine (40) based on the metness of the restart conditions.

[0095] In the restart control when the manual transmission (42) is in gear, while waiting for the restart condition to be met, if the position detection mechanism (116) detects that the side support (63) is in the upright position, the control mechanism (100) ends the restart control and executes the normal start control.

[0096] According to this embodiment, when the side support is in the upright position, the engine will not restart even if the restart condition is met. This prevents situations where, after the engine automatically stops, the rider parks and dismounts the motorcycle, and then, upon re-riding, forgets that the motorcycle was idling, and the restart condition happens to be met, causing the engine to restart. Furthermore, when the motorcycle is parked and dismounted, it is assumed that the rider's intention to restart is weak. In such cases, the engine restart, based on the execution of the normal start control, follows the rider's intention. Therefore, a motorcycle capable of restarting the engine in accordance with the rider's intention can be provided.

[0097] 2. The straddle-type vehicle (10) of the above embodiment includes:

[0098] Headlights (36); and

[0099] Position light (37),

[0100] When the restart control is terminated and the normal start control is executed, if the headlight (36) is lit, the control mechanism (100) turns off the headlight (36) and turns on the position light (37).

[0101] According to this implementation, power consumption can be reduced, and riders can also be made aware of the end of the restart control.

[0102] 3. In the straddle-type vehicle (10) described above,

[0103] If the normal start control is executed after the restart control is terminated, and the start operation is not performed during a predetermined time period, the control mechanism (100) disconnects the power supply to the straddle-type vehicle (10).

[0104] According to this implementation method, power consumption can be reduced and power depletion can be prevented.

[0105] 4. The straddle-type vehicle (10) of the above embodiment is equipped with a starter switch (117).

[0106] The start-up operation refers to the operation of the starter switch (117).

[0107] According to this embodiment, it is possible for the rider to easily distinguish between the normal start-up operation and the restart operation of the engine.

[0108] 5. The straddle-type vehicle (10) of the above embodiment includes:

[0109] Clutch operating element (86), which is capable of intermittently operating the clutch (43); and

[0110] The clutch operation detection mechanism (111) detects the operation performed by the rider on the clutch operating element (86).

[0111] The restart conditions include at least the case where the clutch (43) is disengaged as detected by the clutch operation detection mechanism (111).

[0112] According to this embodiment, it is possible for the rider to easily distinguish between the normal start-up operation and the restart operation of the engine.

[0113] 6. The straddle-type vehicle (10) of the above embodiment includes:

[0114] Throttle valve operating element (80), which is capable of adjusting the throttle opening of the engine (40); and

[0115] Throttle operation detection mechanism (110) detects the operation performed by the rider on the throttle operation component (80).

[0116] When the manual transmission (42) is in gear, the restart condition includes at least the case where the throttle operation detection mechanism (110) detects that the throttle (52) has been opened.

[0117] According to this embodiment, by setting the throttle opening operation as a restart trigger, even if the rider wants to start immediately, the same throttle operation and clutch operation as during normal engine-driven starts can be performed, thus suppressing engine stall.

[0118] The embodiments of the present invention have been described above, but the present invention is not limited to the above embodiments, and various modifications and alterations can be made within the scope of the spirit of the present invention.

Claims

1. A straddle-type vehicle (10) comprising: Engine (40); A manual transmission (42) is connected to the engine (40) via a clutch (43) to change the speed of the engine (40) and output the rotation; Side bracket (63) is configured to swing between an upright position and a stowed position, in which the upright position supports the vehicle body in a tilted state along the vehicle width direction; A position detection mechanism (116) detects the position of the side support (63); A control mechanism (100) controls the automatic stop and restart of the engine (40) after automatic stop; Headlights (36); and Position light (37). Its features are, The control mechanism (100) performs the following: Normally, the start control waits for the rider's start operation and, based on the start operation, starts the engine (40); and Restart control waits for the restart conditions to be met during the shutdown of the engine (40) caused by the automatic stop, and restarts the engine (40) based on the metness of the restart conditions. In the restart control when the manual transmission (42) is in gear, during the waiting period for the restart condition to be met, if the position detection mechanism (116) detects that the side support (63) is in the upright position, the control mechanism (100) ends the restart control and executes the normal start control. When the restart control is terminated and the normal start control is executed, if the headlight (36) is lit, the control mechanism (100) turns off the headlight (36) and turns on the position light (37).

2. The straddle-type vehicle according to claim 1, characterized in that, If the normal start control is executed after the restart control is terminated, and the start operation is not performed during a predetermined time period, the control mechanism (100) disconnects the power supply to the straddle-type vehicle (10).

3. The straddle-type vehicle according to claim 1, characterized in that, The straddle-type vehicle (10) is equipped with a starter switch (117). The start-up operation refers to the operation of the starter switch (117).

4. The straddle-type vehicle according to claim 1, characterized in that, The straddle-type vehicle (10) has: Clutch operating element (86), which is capable of intermittently operating the clutch (43); and The clutch operation detection mechanism (111) detects the operation performed by the rider on the clutch operating element (86). The restart conditions include at least the case where the clutch (43) is disengaged as detected by the clutch operation detection mechanism (111).

5. The straddle-type vehicle according to claim 4, characterized in that, The straddle-type vehicle (10) has: Throttle valve operating element (80), which is capable of adjusting the throttle valve opening of the engine (40); and Throttle operation detection mechanism (110) detects the operation performed by the rider on the throttle operation component (80). When the manual transmission (42) is in gear, the restart condition includes at least the case where the throttle operation detection mechanism (110) detects that the throttle (52) has been opened.

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