TWI359916B - Straddle-type vehicle, power unit and continuously - Google Patents

Description

1359916 IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD The present invention relates to a straddle type vehicle (for example, a motorcycle and a stepless speed changer, and more specifically, an electronic device) A straddle-type vehicle that controls a stepless transmission. ^ [Prior Art]

In a straddle type vehicle such as a Scooter type motorcycle, a V-belt type stepless speed changer is widely used. The V-belt-type stepless speed changer includes an output input of a power source (such as an engine) to the main pumping, and a sub-shaft that is to be driven to the wheel of the driving wheel, and is respectively disposed on the main shaft and the countershaft. Paired main sheave and auxiliary sheave. The groove width of each of the sheaves is designed to be; and the 'V-belt' is wrapped around the sheaves. The v-belt type stepless speed changer has a groove width adjustment mechanism for changing the groove width of each groove. Therefore, the winding diameter of the V-belt wound around each sheave is adjusted to adjust the gear ratio between the sheaves in a stepless manner. Usually, the main sheave and the auxiliary sheave are formed by a fixing flange and a movable flange, and a V-shaped groove is formed between the 忒 fixing flange and the movable flange. Each movable flange is provided such that it can move in the axial direction of the main or sub-shaft. The groove width adjusting mechanism moves the movable flange to adjust the speed ratio in a stepless manner. There is known a V-belt type stepless transmission of this type in which an electric motor is used to move the movable flange of the main sheave, thereby adjusting the groove width. The moving driving force of the electric motor causes the movable flange to be in the direction of narrowing the width of the main sheave (top side) or widening the groove width of the main sheave (low (L〇w) side) Movement, thereby allowing adjustment of the groove width (for example, refer to the patent document ^) ^ 129444. doc 1359916 [Patent Document 1] Japanese Patent No. 3041061 [Patent Document 2] Japanese Patent No. 2950957 [Patent Document 3] JP-A- 7-1 19804 [Description of the Invention] [Disclosure of the Invention] [Problems to be Solved by the Invention]

A scooter type motorcycle with a mechanism for electronically controlling a V-belt type stepless speed changer automatically performs a program (map) for vehicle speed and engine speed based on a pre-entered operation without requiring the rider to perform any operation. Change the gear ratio. Therefore, the rider's driving operation becomes simpler, and an attempt has been made to apply the automatic stepless speed changer to various types of vehicles. When a vehicle equipped with such a stepless transmission runs downhill, the vehicle can slide down the downhill by inertia while the engine is stopped. In this case, if the mechanism that changes the speed ratio in response to the vehicle speed is used, the clutch can be sprayed immediately when the engine is started after reaching a certain speed. at this time,

There is a problem that will occur - that is, the feeling of unpleasantness due to the unsatisfactory between the operation of the material and the actual accelerated movement of the vehicle. [Means for Solving the Problem] The straddle type vehicle according to the present invention is a top-of-the-line engine, a stepless speed changer connected to the engine, and a control device for controlling the stepless speed change. The straddle type handle includes a mode switching operation member, and a plurality of drive modes are set in the control device. The control device performs ^ control. At the start of the engine, the drive mode is switched to the plurality of engine start-ups. In addition, the first control + I track second control: in response to I29444.doc 1359916, the mode switches the operation of the operating component to switch between the plurality of drive modes. Further, the control device performs a third control: when the control device detects that the engine has not been started, limiting the second control and suppressing switching from the determined drive mode to another drive mode. [Advantages of the Invention] According to the present invention, the control device performs: a first control, in which the engine is started, the drive mode is switched to the predetermined drive mode among the plurality of drive modes; the first batch of the younger brother a control, switching between the plurality of driving modes in response to the mode switching operation unit; and a third control, limiting the second control when the control device detects that the engine has not been started yet And = this determines the switching of the drive mode to the other-drive mode. Therefore, it is possible to fix the drive mode when the engine is started, and always: the drive mode is lighter than the drive mode. Thereby, the braking performance immediately after the start of the starter can be maintained at a constant level. Not determined when the control device detects that the engine has just been started and when the drive mode is still moving to the predetermined drive mode of the plurality of drive modes. In this case, the mode is switched to Exact (for example, when the π downhill H is in a state of reaching a certain speed, there is also a 不 operation and vehicle by the starter engine (4) combined with the centrifugal clutch. Between the actual movements [Embodiment] #", thereby improving the rider's comfort. For example, as shown in Fig. 9, the "spinning of the main heart" wheel 3, J shown in Fig. 9 is connected to the engine. 2 The wheel 3 is connected to the auxiliary sheave 4 which outputs the power to the secondary shaft of the rear wheel (drive wheel) 7 via the centrifugal clutch 6 129444.doc 1359916, and the V-shaped winding of the main sheave 3 and the auxiliary sheave 4 Belt 5. In addition, the groove width adjustment mechanism is used to adjust the groove width of the main sheave 3, thereby adjusting the gear ratio without a step. The stepless gearbox described above may be included when the vehicle is running downhill. A mechanism that changes the speed ratio in response to the speed of the vehicle when the engine 2 is stopped. In this case, when the engine 2 is started in a state in which a certain speed has been reached, an event may occur, based on an input that has been previously input. Quickly execute shifts in the program of vehicle speed and engine speed (mapping) When such an event occurs, there is a possibility that the rotational speed of the auxiliary sheave 4 located downstream of the engine 2 will also increase, thereby immediately engaging the centrifugal clutch 6. Therefore, the feeling under this condition is completely different from when it is normal. The feeling of the clutch engagement condition at the time of starting. Therefore, the feeling of unpleasantness may be felt due to the inconsistency between the operation of the rider and the actual vehicle movement. The inventors of the present invention have found that the meshing state of the centrifugal clutch 6 is felt The present invention has been achieved due to the unpleasant feeling caused by the inconsistency between the operation of the rider and the movement of the vehicle, and has been designed to reduce the unpleasant feeling felt when the centrifugal clutch is engaged. The embodiments of the present invention are described with reference to the drawings. In the following drawings, structural components having the same or similar operations are denoted by the same or similar reference numerals, and the description of the same structural components will be omitted. Note that the present invention is not limited to the following implementation 1 shows a side structure of a straddle type vehicle 100 according to an embodiment of the present invention. A block diagram for explaining the configuration of the control device 1 〇 and its surroundings installed in the straddle type vehicle 根据 according to the embodiment. 129444.doc 1359916 As shown in FIG. 2, the straddle type according to the embodiment The vehicle ι includes a driveless source (engine) 20' having an output controlled in response to the accelerator operating portion 25 operated by the rider, and a stepless transmission 3A coupled to the engine 2, and an electronically controlled stepless transmission 30 The control device 1 〇 β notes that, in the embodiment, the engine 20 and the stepless transmission 30 form a power unit 8 〇. The straddle type vehicle 100 shown in Fig. 1 is a speed keda type motorcycle, and is driven by an engine. The driving force generated by 20 is transmitted to the rear wheel (drive wheel) 40 via the stepless speed changer 3. In the case of the motorcycle, the accelerator operating member 25 operated by the rider is an accelerator or accelerator handle attached to the handle. The stepless speed changer 30 according to the embodiment has a structure in which the main sheave rim is coupled to a main shaft 31 (e.g., a crank shaft) that is rotated by the engine 20, and the auxiliary sheave 34 is coupled to the fifth clutch and decelerated via the centrifugal clutch. The mechanism 51 outputs power to the counter shaft 35 of the rear wheel 40 (drive wheel), and the V-belt 33 is wound around the main sheave 32 and the auxiliary sheave 34. In addition, the gear ratio is controlled steplessly and steplessly by changing the groove width of each sheave. The main sheave 32 and the auxiliary sheave 34 are constructed by fixing flanges (32a, 34a) and movable flanges (32b, 34b) attached to the main shaft 31 and the counter shaft 35, respectively. The movable flanges (32b, 34b) are provided such that they are movable in the direction of the main shaft 31 and the direction of the counter shaft 35, respectively. Note that the fixing flange may also be referred to as a fixed sheave 'and the movable flange may also be referred to as a movable sheave. The movable flange 34b of the sub-groove 34 is advanced in the direction in which the groove width is narrowed by the groove width adjusting mechanism. The groove width adjusting mechanism of this embodiment is formed by a spring (not shown) attached to the movable flange 34b and a torque cam (not shown) provided in a portion of the movable flange 34b. 129444.doc 10 1359916 The other aspect adjusts the groove width of the main sheave 32 by causing the movement of the movable flange 32b of the (4) 6G control slider so as to be slidably movable in the direction of the main shaft 31. The rotation of the actuator 6 can make the movable four edge appear in the direction in which the groove width of the main sheave 32 is narrowed (that is, to the side of τ〇ρ) and the direction in which the wide groove is seen (10), to L〇w Side shifting m, it is possible to freely - adjust the groove width. In this embodiment t, the actuator 6 is an electric motor. The electric motor 6 is driven by the power supplied to the electric motor. That is, the electric motor 6 turns the electric power supplied to the electric motor 60 into mechanical energy, and outputs the mechanical energy to the movable flange 32b, thereby moving the movable flange 32b. The actuator 6 that adjusts the groove width of the main sheave 32 is electrically connected to the control device (field change control device) 1 〇. The control device j is constructed by an electronic control device; an electronic control unit το). The electronic control unit (ECU) is configured by, for example, a microcomputer (Mpu). The control device 1 performs control so that it calculates a gear ratio corresponding to a vehicle operating condition (such as • vehicle speed, throttle opening degree) based on a pre-registered control map (program), and issues to the stepless speed changer: Shifting a command to achieve the gear ratio, thereby finally achieving the fascination & line actual control to calculate a target value (target gear ratio) of the gear ratio from the control map based on information about the vehicle speed and the throttle opening, and The position of the movable sheave of the main sheave is controlled by driving the electric motor 60 to achieve the desired gear ratio. The control map is stored in the control device. It has been in the early days. Alternatively, a memory unit that is electrically connected to the control device i can be provided outside the control device 1 and the control map can be stored in the memory unit 129444.doc 1359916. The memory unit can be configured by, for example, a semiconductor memory (ram, flash memory, or the like) or a hard disk. In the electronically controlled stepless speed changer as described above, a plurality of change-over features can be set by preparing a plurality of control (four) maps. In the stepless speed changer 30 of this embodiment, two shifting characteristics which can be appropriately changed according to the intention of the rider are set. In this embodiment, a plurality of drive modes for controlling the stepless speed changer 30 are provided in the control device 1G. Further, the control unit performs the first control first control 12 and the third control 13. The control device 10 executes each control in accordance with a program set in advance. The first control U switches the drive mode to a plurality of drive modes (A, b) before the engine 2G is started: - p (4) dip * / determines the determined drive mode operation 'b the second control 12 is used to respond to the mode The switching of the switching operation member 27 to switch between the plurality of driving modes (A b). Γ2: Γ: 3 is used to limit the second control 12 when it is detected that the engine has not been started and to suppress the self-determined drive mode (Α) to another drive Μ control. The mode of switching the pendulum type (B) is determined by the plural number set in the control device 1" = the predetermined drive mode. In this embodiment, the "action mode" is also appropriate. This is referred to as the "normal mode." or the initial mode, as shown in the embodiment of the stepless speed changer 3. In the use of two _-forms, that is, the normal mode "A" and auxiliary mode, I note that when used in this article, "drive mode" is a table q double sigh for the stepless speed 129444.doc 1359916 Type: Shift: The term of the levy (shift method). Concisely explain the characteristics of the driver model:: the normal mode "A" is the low in the shift zone. Small fuel consumption, noise, etc. (economic mode, other aspects, auxiliary mode "B" to set the shift zone engine speed to be higher than the normal mode, a,, the engine speed is high, to the dog The driving mode of the engine's output performance (power mode). ^ Figure shows the order, as shown by the car's auxiliary speed-engine speed map, positive = fruit A" and auxiliary mode "B" have different groove changes Feature map (control map). In Fig. 3(c), R(4) shows the shift pattern (control map) set in the normal mode "a,", and R(B) shows the assist mode ·, Β" Set the change of the temple sign (control map). The figure refers to *: at the same vehicle speed, when Qing

When the camouflage becomes high, the gear ratio of the stepless speed changer is set larger (to the L0W side). For example, from the normal mode 丨丨A ” 辅助 辅助 々丨丨 ρ ρ ρ ρ 〃 ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( The engine speed is lower than the auxiliary mode "Β". That is, the gear ratio in the normal mode "Α" is set to be smaller than the auxiliary mode "β" (to the TOP side). The control device 1G is started at the engine 20. The drive mode is previously switched to the predetermined determined drive mode (A) (first control) among the plurality of drive modes (A, B). In addition, the 'control device _ should be operated by the mode switching operation unit 27 The plurality of drive modes (switching between a ' (second control). In addition, when the control device _ detects that the engine has not been started, the = device H) limits the second control! 2 and suppresses the self-determined drive mode (eight) to another 129444.doc 1359916 Switching of a drive mode (B) (third control). Hand == selection: _, the control unit _ should switch between the mode switching operation parts provided by the ride 27== 25 respectively. That is, it can be operated according to the rider Buttons) In the normal mode "A" disk auxiliary station / (passing by manual: hand) two and two choose the best sway mode that reflects the rider's intention, and the rider can drive comfortably. And in the embodiment, as shown in FIG. 3(b), the device 1 is controlled. The stepless speed changer 3 will be in the state of cutting off the engine 20 by two or two. The dynamic (replacement feature) is selectively fixed in the initial mode. In this paper: when the 'initial mode' is set to a stepless speed changer, the set ==ΓΓ feature) has a minimum speed change TM). In the embodiment, "the ratio has a smaller gear ratio than the auxiliary mode in the initial mode (to "Normal mode of τορ side" corresponds to the saying "When the control device 10 senses that the engine 2 has not been started, the 2 mode switching suppression command" thereby suppresses the drive mode from being shifted to the normal mode before the engine 20 The switching between (initial mode) and the auxiliary mode is different from the driving mode of the initial mode. In this embodiment, as described above, the control map (R(A), R shown in Fig. 3(4) is used. (B)) Perform actual control. More specifically, based on the information of the degree of lightness and the degree of opening between the throttles, the control of the individual drive modes, and the calculation of the shift (R(A), R(B)) Compared with the target value (target gear ratio), I29444.doc 1359916 and drive the electric motor 60 to achieve the target gear ratio, thereby controlling the position of the movable sheave of the main sheave. Note that the control map R(A) shows the normal mode. Control mapping, and control mapping R(B) shows auxiliary mode Control map of B" In addition, control map R(A) and control map R(B) indicate the area (control area) defined by the control maps. This control area indicates the vehicle speed when the throttle valve is fully opened. Line L 1 (A) and line L1 (B) relating to the target value of the engine speed and a line L2 (A) indicating the relationship between the vehicle speed and the target value of the engine speed when the throttle valve is completely closed For example, the area around the line L2 (B) 0, if the vehicle performs control based on the control map R (A) in the normal mode "eight" running, by opening based on the vehicle speed and the throttle The calculation of the degree of information to calculate the target value of the engine speed. More specifically, based on the information about the speed of the vehicle, the position of the horizontal axis in Figure 3 is determined. Then, according to the degree of opening of the throttle valve, the mapping R(A) The target value of the engine speed is determined in the region. Under this condition, when the throttle opening is increased, the target value of the engine speed is increased (control to the LOW side to increase the speed ratio), and when the throttle opening degree is decreased, The target value of the engine speed is reduced ( Controlling to the TOP side to reduce the gear ratio # & achieving smooth acceleration and deceleration. When repeatedly performing the above-described calculation based on information on the vehicle speed and the degree of opening of the throttle valve that changes with time, the control device 10 The target value of the engine speed is calculated, thereby controlling the speed ratio of the stepless transmission 30. In the stepless speed changer 30 as described above, when the speed ratio reaches or exceeds a certain value, the 'clutch tends to engage' and the auxiliary sheave The rotation speed is increased. Suppose that if the target value of the engine speed is set such that the gear ratio exceeds the value of the engagement of the clutch 129444.doc 1359916, setting the target value of the engine speed to the τ〇ρ side will decrease when The abrupt sensation felt when the engine brake is applied immediately after the clutch is engaged. As is apparent from the comparison of the control map R(A) and the control map R(B) of the example in the figure, the control map R(A) is set such that the shift ratio in the shift comparison control map R(B) is small ( To the T0p side). Therefore, the control based on the control map R(A) can more effectively reduce the abrupt sensation felt when the engine brake is applied. Note that in this embodiment, the normal mode "A" is set to the initial mode. However, the normal mode "A" can be set to the other of the plurality of drive modes as long as it is the gear ratio It is sufficient to set the drive mode to be reduced (to the side). The number of drive modes that can be set is not limited to two, and three or more drive modes can be set in the stepless speed change machine 30. For example, A third drive mode in which the speed ratio is set closer to the TQP side than the speed ratio of the normal mode "A" can be set, and the third drive mode is used as the initial mode. Further, this embodiment uses a method of switching between drive modes in which the drive mode is switched by switching the control map. However, the method of switching between the driving modes is not limited to this. For example, [the shifting feature can be changed by multiplying by multiplying by - multiplying the conversion factor by switching control: mapping. More specifically, the target speed ratio calculated from the determination control map can be multiplied by the breaking conversion factor (for example, 135), thereby making it possible to switch to the shifting characteristic of the increased speed ratio (shift to the LOW side). ("Change to low gear mode")7 In this case, the number of downshift modes can be set to one. Alternatively, group evil can be adopted, in which two or more downshift modes are set, 129444.doc -16- and the downshift is executed to sequentially increase the gear ratio (changing to the L〇w side) in response to the rider's press ("multi-speed downshift,"). Note that it will be determined that the conversion factor is stored in the form of a factor map in a memory unit provided inside or outside the control device.

Another embodiment of an example of a method in which a two-child show is not switching between drive modes. As shown in Fig. 4, (4) between the drive modes can be performed by a combination of a tool change based on the drive mode of the control map and a low speed play mode set by multiplication by the multiplication factor. In the example shown in FIG. 4, the operation mode 27 can be switched in response to the rider mode of operation in three modes (ie, normal mode "A", assist mode"B", and auxiliary mode C. ) Switching sequentially (see arrow μ in Figure 4). In addition, adoption

And wherein each of the drive modes is shiftable to a low speed building state (see arrow 74 in Figure 4). Even in this case, it is possible to suppress occurrence of the engagement of the clutch by fixing the drive mode to the normal mode (i.e., 'set to the drive mode having the minimum gear ratio (to the TOP side)) before starting the engine. Unpleasant feeling. Now, referring back to Fig. 2, the configuration of the embodiment of the present invention, which is specifically controlled by the control device of the stepless transmission, will be described in detail. The straddle-type vehicle 100 includes an engine speed sensing for detecting the speed of the engine 2 # 22 ° control device 1 侦测 detecting whether the engine speed detected by the engine speed sensor 22 is 〇 or not Engine 2〇. In this embodiment, the engine speed sensing β 22 for detecting the speed of the engine 20 is electrically connected to the control device 1〇 and outputs the engine speed signal to the control device 10° when the control device 1 is sensed via the engine speed. When the device 22 detects that the 129444.doc 1359916 is not being used, the mode switch suppression command is issued. More specifically, the engine is outputted from the engine speed signal output from the W engine speed sensor 22 (more specifically, the engine speed signal is "engine speed signal"). Zhuang Ren, the pull switch suppression command is not limited to the engine speed signal output from the engine speed sensor 22. A configuration may be adopted in which the mode switching suppression command is issued based on other information that the engine has not started the engine (for example, by "on/off" based on the main switch" to determine whether ignition or injection has been performed. The speed of the rear wheel speed sensor 52 is electrically connected to the control device 10. The rear wheel speed sensor 52 is disposed adjacent the rear wheel 4〇 and outputs a rear wheel speed signal to the control device 10. From the rear wheel The speed signal obtains the vehicle speed. Further, the mode switching switch (mode switching SW) serving as the mode switching operation section 27 is electrically connected to the control device 10. The switching between the plurality of driving modes is performed by the rider turning on the mode switching switch. The mode changeover switch can be, for example, a mode switch button having a button shape. Further, a sheave position picking device 29 for detecting the flange position of the movable flange 32b of the main sheave 32 is connected to the control device 1 The sheave position measuring device 29 can output information about the position of the movable flange (movable flange position signal) to the control device 10. The control device 10 uses The information of the edge position (the movable flange position signal) controls the electric motor 6 to pay attention to various signals (for example, the throttle opening signal, the auxiliary sheave rotation speed signal, etc.) and the rear wheel speed signal and the engine speed signal. The movable flange position signal is input to the control device 10. Next, the control device 129444.doc -18-1359916 method will be described with reference to the flowchart in Fig. 5. First, the control device 10 is started before the engine 20 is started. Switching the drive mode to the predetermined determined drive mode (A) (the first control) among the plurality of drive modes (A'B). In this embodiment, when at step S10 "ON" When the main switch (the main power source of the vehicle 100), the control device 1 〇 proceeds to step 〇, and shifts the drive mode to the initial mode (here, the normal mode A") 〇 next 'when the control device 10 detects The control device 1 limits the second control 12 and suppresses switching from the determined drive mode (4) to the other drive 2 mode (8) (third control) when the engine has not been started. In this embodiment, the control device 1 Whether or not there is a drive mode switching request (here, the auxiliary mode "B" switching request) (step S30). When it is confirmed that there is a drive mode switching request, it is next determined at step S40 whether the engine 2 has been started. Here, when it is determined that the engine 2 has not been started, the process proceeds to step s5q to S50, the mode switching is rejected, the drive mode is confirmed, and the idle mode is set to the maintained private state. ^, 卫 elbow 垓 drive operator initial mode (normal mode, Α ") (step please). Aspect 'When it is determined at step S40 that the uncle has been carried out until the step 骢un The routine advances to step S60, and in step S6, the following:: initial mode (normal mode to another mode (auxiliary 22: this = confirm and set the drive mode in this state). In this way, it can be started in the normal mode (normal mode "A"). Note that when the main mode is set in the initial mode, the drive mode is activated by $, and the field is switched on to receive the change to the initial mode. However, it is sufficient to shift the drive mode to the engine start initial mode before the engine ^. Therefore 129444.doc -19. The timing of the shifting of the initial mode of the 916 2 is not limited to the "ON" main switch. For example, the following is acceptable: adopt a configuration in which the shift to the initial mode is performed when the engine is turned off, so that the shift to the initial mode is made when the next time " . Alternatively, the following is also acceptable: adopt a configuration in which the "cutoff" main switch is executed to the initial: so that when the next "on" " main switch, the completion is completed: the next change 'Another embodiment of the present invention will be described with reference to Fig. 6. This embodiment is different from the embodiment described above, except that the shift to the initial mode is not performed before the engine: ^, and the engine (four) Accordingly, the description of the same structural components that are identical or similar to those of the structural members of the straddle 100 are indicated by the same or similar reference numerals. '' In this embodiment, when the control device 10 detects that when the engine 20 is just started and the drive mode has not been shifted to the plurality of drive modes (Α, Βρ • (4) determines the determined drive mode (4), the control device moves to the determined drive mode (Α) (the first) Four Controls 14), Formula: In this implementation, the control device 1G is configured such that it is in the state of the engine 20, and the control device 10 can perform control based on the detection result to drive the drive mode from another drive. mode The auxiliary mode "B") switches to the initial _ (normal mode 'A'). That is, it is allowed to switch the drive mode before the engine is started, but the drive mode is changed to the initial, even on the basis of the timing of the engine start. It is possible to start the car _ (normal mode "A"), its ... after the start of the engine; I29444.doc -20· I three 59916

The ratio is set to decrease (to the TOP side). Thereby, it is possible to reduce the unpleasant feeling caused by the inconsistency between the operation of the rider and the actual movement of the vehicle. Note that, in this embodiment, the control device 10 detects whether or not the engine 20 has just been started based on whether the speed of the engine 20 has increased automatically. That is, the control device 10 can detect the state of the engine just started by the engine speed sensor 22. more

Specifically, the control device 10 performs control to switch the drive mode from another drive mode (auxiliary mode T) to the initial mode (normal mode) A in response to the engine speed indicating that the engine speed has been increased from "〇" Next, the control method of the control device 1G will be described. First, when the step is said to be "on", the main routine (the vehicle is just the main power source) is executed = coffee, in step S200, Control device i. Determining whether it has been started at a short interval (in this embodiment, the determination of the step coffee is repeatedly performed every 〇·〇 5 seconds (for example, 50 ri) until it is determined that the engine has been started

When it is determined at step S200 that s has been determined: whether the current driving mode is: same:: set: When the initial mode is maintained, the routine proceeds to the step and the material is set to the initial mode (normal mode and the driving mode 22) When determining that the current drive mode is different, execute from the other two drive: mode (ie, auxiliary mode "B,, , (style) (assist mode B)) to the initial mode (normal 129444.doc 13.59916 mode "A" Switching (step s), and confirm the rattan mode and set it to the initial mode (normal mode "A") (step S5〇〇). In the configuration described above, even if After turning on the " main switch, the drive mode is switched to a drive mode different from the initial mode (normal mode "A"), and it is also possible to switch the drive mode to the initial mode without error after the engine is started. A very short interval (e.g., π - repeats execution at step S200 as to whether the engine has been started. Therefore, even if the drive mode is switched after the engine is started, the actual change in the speed ratio is not affected. The present invention is not limited to the embodiments described above. For example, the structure of the stepless speed changer 30 is not limited to the structures described in the embodiments described above. For example, the present invention is applicable to having Various stepless speed changers of the following structure: a v-belt is wound around the main sheave and the auxiliary sheave, and the actuator and the control device are used to adjust the groove width of the main sheave. As a stepless speed changer as described above, It is possible to adopt the stepless speed changer including the metal belt as the V-belt shown in (❹)(4). Note that the implementation of the stepless speed changer shown in Fig. 8 is represented by the same reference numerals and Figs. 2 and 6 The structural components and portions of the structurally-unchanged machine of the embodiment shown in the embodiment are operated in the same manner. In this embodiment, as shown in FIG. The outer belt of the leather belt 233 can be modified in various ways including the stepless speed changer 230 (hereinafter also suitably a CVT) as a metal belt of the v-belt. 'The metal belt CVT 230 includes the clutch 250 and the main winding 4 Gray turn sensing 229, 129444.doc -22- 13.59916 and actuator. In this embodiment, the actuator is constructed from hydraulic cylinders 260A, 260B and hydraulic control valve 260C. Clutch 250 is disposed on the output shaft of engine 20 and The input shaft between the metal belt CVT 230. The clutch 250 connects/disconnects the power transmission between the output shaft of the engine 20 and the input shaft of the metal belt CVT 230. Next, the main rotation sensor 229 detects the main sheave. The rotational speed of 232. In this embodiment, the control device 10 uses the rotational speed of the primary sheave 232 detected by the primary rotational sensor 229 and the vehicle speed sensor (the rear wheel speed sensor in the figure) 252 detects the ratio of the vehicle speed of the straddle type vehicle to calculate the speed ratio of the stepless speed changer 230. Note that the ratio between the rotational speed of the main sheave 232 detected by the primary rotational sensor 229 and the rotational speed of the secondary sheave 234 detected by the secondary sheave rotational speed sensor 269 can be used. The speed ratio of the stepless speed changer 230. Next, the hydraulic cylinder 260A adjusts the groove width of the main sheave 232. In this embodiment, the hydraulic cylinder 260A adjusts the groove width of the main sheave 232 by applying a pressing force to the movable flange 232B of the main sheave 232. Further, the hydraulic cylinder 260B adjusts the groove width of the auxiliary sheave 234. In this embodiment, the hydraulic cylinder 260B adjusts the groove width of the auxiliary sheave 234 by applying a pushing force to the movable flange 234B of the auxiliary sheave 234. The hydraulic control valve 260C is a valve that adjusts the hydraulic pressure applied to the hydraulic cylinders 260A, 260B. The hydraulic control valve 260C performs control such that when the hydraulic pressure of one of the hydraulic cylinders 260A, 260B increases, the hydraulic pressure of the other hydraulic cylinder 260B (260A) decreases. The hydraulic control valve 260C is controlled by the control unit 10. The re-speed ratio of the metal belt 129444.doc • 23· 1259916 CVT 230 is changed by the control device 10 that operates the hydraulic control valve 260C. The control unit 1 controls the metal belt CVT 23A in a manner similar to the control of the stepless speed changer 30. Note that in the metal belt cvT 230 according to the embodiment, the control device 1 〇 uses the main sheave plus the rotational speed as the control target value ' instead of using the engine speed as the control target value 0. Note that in this embodiment, the fourth is combined. Control 14 is coupled to first control U, second control 12, and third control 13 described above. That is, as shown in Fig. 8, the control means respectively perform the first control, the second control, the third control, and the fourth control. In the first control, the driving mode is switched to one of the plurality of driving modes before the engine is started, and the predetermined driving mode is determined. In the second control, the switch is switched between the plurality of drive modes in response to the operation of the mode switching operation unit. In the third control (4), when the control device detects that the engine has not been started, the control device limits the second control and suppresses switching from the determined drive mode to the other drive mode. At the fourth control Mt, the control device switches the drive mode to the determined drive mode when the control device 刚^ (4) and when the drive mode has not been switched to the determined drive mode. In the above configuration of the field, even if the engine is driven before the engine is started due to a certain machine, the drive mode is switched by the fourth control 14 immediately after the start of the drive mode (8). To the exact drive mode (4). In addition, even when the fourth control 14 is inactive 1 , the driving mode can be fixed in the driving mode (A) by the first control to the third control before the engine is started. Although the straddle-type vehicle (10) shown in Figure 1 is a Scooton type motorcycle, the 129444.doc -24- month is applied to a straddle-type vehicle as long as it has an electronically controlled stepless transmission eight + shift control The device is OK. For example, the present invention can be applied to four-wheeled single materials (Ατν: all-terrain vehicles), snow-like vehicles like I and speed-speed motorcycles. Note that 'in the case of a four-wheeled single-seater or the like, a lever (rather than an accelerator. handle) can be used as an accelerator. ρ pieces. In addition, the straddle-type vehicle is equipped with a motor. The machine is used as an engine, but it is also possible to use

The text: describes the invention based on the preferred embodiments. However, the invention is not limited to the details and the invention is susceptible to various modifications. [Industrial Applicability] According to the present invention, it is possible to provide a straddle type vehicle capable of sufficiently ensuring the driving performance at the time.埂Starting [Schematic Description of the Drawings] Fig. 1 is a view showing a side surface of a straddle type vehicle according to an embodiment of the present invention.

Fig. 2 is a block diagram showing a stepless transmission mounted in a straddle type vehicle according to an embodiment of the present invention and its peripheral structure. * Figures 3(a) through 3(.) show a diagram illustrating the drive mode set for a stepless speed changer. Figure 4 shows a diagram illustrating a drive mode set for a stepless transmission. Figure 5 is a flow chart of a control device in accordance with an embodiment of the present invention. Figure 6 is a block diagram showing a stepless speed changer and its peripheral structure according to another embodiment of the present invention. Figure 7 is a flow chart of a control device in accordance with another embodiment of the present invention. 129444.doc •25-1359916 Figure 8 is a block diagram showing the stepless speed changer and its surrounding structure when the stepless speed changer is a metal belt CVT. Figure 9 is a diagram for explaining the mechanism of the stepless speed changer. [Main component symbol description] 1 Stepless speed changer 2 Engine 3 Main sheave 3 a Main shaft

4 auxiliary sheave 4a countershaft 5 V-belt 6 centrifugal clutch 7 rear wheel (drive wheel) 10 control unit 11 first control 12 second control

13 Third control 14 Fourth control 20 Engine 22 Engine speed sensor 25 Accelerator operating part 27 Mode switching operating part 29 Noch position detecting device 30 No-segment transmission 129444.doc -26- 1359916 31 Main shaft 32 Main sheave 32a fixing flange 32b movable flange 33 belt 34 auxiliary sheave 34a fixing flange 34b movable flange

35 Countershaft 40 Rear wheel 50 Centrifugal clutch 51 Retarder mechanism 52 Rear wheel speed sensor 60 Electric motor 70 Arrow 72 Arrow

74 arrow 80 power unit 100 straddle type vehicle 229 main rotary sensor 230 metal belt CVT (stepless speed changer) 232 main sheave wheel 232A fixing flange 232B movable flange 129444.doc • 27- 1359916 233 metal belt 234 pair Slotted wheel 234Α Fixed flange 234Β Movable flange 250 Clutch 252 Vehicle speed sensor (rear wheel speed sensor) 260Α Hydraulic cylinder 260Β Hydraulic cylinder 260C Hydraulic control valve 269 Sub-groove rotation speed sensor L1(A) line L1(B) Line L2(A) Line L2(B) Line R(A) Control Map R(B) Control Map 129444.doc ·28·

Claims (1)

1359916 · Patent application scope: A straddle type vehicle, the patent application No. 097102527, the Chinese patent application scope is _I I. On the 7th of the month, the repair (more) has an engine, which should be controlled by an accelerator operating part; a stepless speed changer connected to the engine; and a control device for controlling the stepless speed change machine, The straddle type vehicle is characterized by: a mode switching operation component, wherein a plurality of driving modes are set in the control device, and the control device performs a first control that switches the drive mode to one of the plurality of drive modes before the engine is started to determine a predetermined drive mode; the first control is responsive to the mode switching operation component in the plurality of drive modes Switching between; and a third control 'when the control device detects that the engine has not been activated, limiting the second control and suppressing switching from the determined drive mode to another drive mode. 2. The straddle type vehicle of claim 1, wherein the control device performs a switching of the driving mode to when the control device detects that the engine has just been started and when the switching to the determined driving mode has not been performed yet This determines the fourth control of the drive mode. 3. The straddle-type vehicle of claim 1, further comprising: an engine speed sensor that detects a rotational speed of the engine, wherein the control device is based on the engine detected by the engine speed sensor Whether the rotation speed is zero or not detects whether the engine has not been started yet. 129444-1001007.doc 1359916 4. A straddle-type vehicle comprising: an engine, a stepless transmission connected to the engine, and a control device for controlling the stepless transmission, characteristics of the straddle type vehicle Wherein: a plurality of driving modes are set in the control device; and when the control device detects that the engine has just been started and when the driving mode has not been switched to one of the plurality of driving modes, the predetermined driving mode is determined in advance The control device performs a fourth control to switch the drive mode to the determined drive mode. 5. The straddle-type vehicle of claim 4, further comprising: an engine speed sensor that detects a rotational speed of the engine, wherein the control device is based on the engine detected by the engine speed sensor Whether the rotation speed has increased from zero to detect whether the engine has just been started. 6. The straddle-type vehicle of claim 1 or 4, wherein the side speed ratio in the determined driving mode is greater than the driving mode different from the determined driving mode among the plurality of driving modes The gear ratio is close to the - TOP side. 7. The straddle type vehicle of claim 1 or 4, wherein the 匕-type shifting machine is a belt type stepless speed changer, wherein the belt is wound around a V-groove of the main sheave and one of the pair of sheaves. a slot, and a gear ratio is controlled steplessly and steplessly by changing a slot width of each of the sheaves; the S-groove includes a fixed flange of the main sheave that is placed on a spindle and a movable flange to which the output of the engine is transmitted; "The 1j sheave includes one of the auxiliary sheaves disposed on a pair of axles, a fixed convex S 129444-丨001007.doc -2 13-59916 edge and a movable flange, the secondary shaft is powered by a centrifugal clutch And a rear wheel; and the groove width of the main sheave is adjusted by an actuator that controls the movement of the movable flange of the main sheave, and the movable flange of the auxiliary sheave is tied to the 8. The straddle type vehicle of claim 1 or 4, wherein the stepless speed changer is a belt type stepless speed changer, wherein one belt is wound around a main sheave A V-shaped groove and a V-shaped groove of a pair of sheaves, and a shift ratio is controlled steplessly and steplessly by changing a groove width of each of the sheaves; and the belt is a metal belt. 9. The straddle-type vehicle of claim 8, wherein a clutch is configured to be disposed on a spindle, the output of the engine being transmitted to the spindle. 10. The straddle type vehicle of claim 8, wherein the main sheave The groove width and the groove width of the auxiliary sheave are respectively adjusted by hydraulic cylinders. Φ 11.: Kind of power unit An engine, and a stepless transmission connected to the engine and controlled by a control device, wherein the power unit is characterized in that: the control device is provided with a plurality of driving modes, and the control device performs a first control Before the engine is started, the driving mode is switched to the plurality of driving modes. J 〇 〇 J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J The operation is switched between 129444-1001007.doc 12. the plurality of driving modes; and the first control, when the control device detects that the engine has not been started, 'limits the second control and suppresses the determination Switching from the drive mode to another drive mode. The power unit of claim 11, wherein the control device executes when the control device detects that the engine has just been started and when the switch to the determined drive mode has not been performed The driving mode is switched to the fourth control of the determined driving mode. 13. The power unit of claim 11, further comprising: detecting the engine An engine speed sensor of a rotational speed, wherein the control device detects whether the engine has not been started based on whether the rotational speed of the engine detected by the engine speed sensor is zero. 14. A power unit, The utility model relates to a straddle type vehicle, comprising: an engine, a stepless speed changer connected to the engine and a control device for controlling the stepless speed change machine, wherein the power unit is characterized by: a plurality of driving modes are set in the control device; and when the control device detects that the engine has just been started and when the driving mode has not been switched to one of the plurality of driving modes, the predetermined determining driving mode is determined The device performs a fourth control that switches the drive mode to the determined drive mode. 15. The power unit of claim 14, further comprising: an engine speed sensor that detects a rotational speed of the engine, wherein the control device is based on the learning detected by the engine speed sensor Whether the rotation speed has increased from zero and detects whether the engine has just been activated by 129444-1001007.doc 13.59916. 16. The power unit of claim 11 or 14 wherein a speed ratio of the determined drive mode is set to be closer to a TOP than a speed ratio of the drive modes different from the determined drive mode of the plurality of drive modes side. 17. The power unit of claim 11 or 14, wherein the stepless speed changer is a belt type stepless speed change machine, wherein a belt is wound around a v-groove of a main sheave and a V-groove of a pair of sheaves And a gear ratio is controlled steplessly and steplessly by changing a groove width of each of the sheaves; the main sheave includes a fixed flange of the main sheave disposed on a main shaft and a movable a flange, the engine wheel is driven to the main shaft; the auxiliary sheave includes a fixed flange of the auxiliary sheave disposed on a countershaft and a movable flange, the countershaft is powered by a centrifugal clutch Driving to a rear wheel; and the groove width of the main sheave is adjusted by an actuator that controls the movement of the movable flange of the main sheave, and the movable flange of the auxiliary sheave is attached The direction in which the groove width is narrowed is advanced. 18. The power unit of claim 11 or 14, wherein the stepless transmission is a belt type stepless transmission, wherein a belt is wound around a v-groove of a main sheave and a V-shaped one of the sheaves The groove 'and a gear ratio are controlled steplessly and steplessly by changing the groove width of each wheel; and the belt is a metal belt. 19. The power unit of claim 18 wherein one of the clutches is configured to be disposed on a spindle to which the output of the engine is transmitted. 20. The fluidity of the main sump and the width of the 129444-10010Q7.doc sheave are adjusted by the liquid helium cylinder respectively. 21. A stepless speed changer controlled by a control device, wherein the stepless changer is characterized in that: the control device is provided with a plurality of drive modes, and the control device performs a first control, Switching the drive mode to one of the plurality of drive modes before the engine is started to determine the predetermined drive mode; a second control that switches between the plurality of drive modes in response to operation of a mode switching operation component; And a second control, when the control device detects that the engine has not been started, limiting the second control and suppressing switching from the determined driving mode to another driving mode. 22. The stepless speed changer of claim 21, wherein when the control device detects that the engine has just been started and when the switching to the determined drive mode has not been performed, the control device performs a switching of the drive mode to the Determine the fourth control of the drive mode. 23. The stepless speed changer of claim 21, wherein the control device detects whether the engine has not been started based on whether the rotational speed of the engine detected by the engine speed sensor is zero. A stepless speed changer controlled by a control device, wherein the stepless transmission is characterized in that: the control device is provided with a plurality of driving modes, and when the control device detects that an engine has just been started and Drive mode 129444-]〇〇!〇〇7 d〇c 13,59916 · When the predetermined drive mode has been switched to one of the plurality of drive modes, the control device performs a switch to the drive mode Determine the fourth control of the drive mode. 25. The stepless speed changer of claim 24, wherein the control device detects whether the engine has just been activated based on whether the rotational speed of one of the engines has increased from zero. 26. The stepless shifting of claim 21 or 24 And wherein the one of the determined driving modes is set to be closer to a τ〇ρ side than the speed ratio of the driving modes different from the determined driving mode. 27. The stepless speed changer of claim 21 or 24, wherein the stepless speed changer is a belt type stepless speed changer, wherein a belt is wound around a V-groove of one of the main sheaves and one of the pair of sheaves ν a slot, and a gear ratio is controlled steplessly and steplessly by changing a slot width of each sheave; . 'The main sheave includes one of the main sheaves fixed on a main shaft a movable flange to which the output of the engine is transmitted; the auxiliary sheave includes a fixed flange of the auxiliary sheave disposed on a countershaft and a movable flange 'the centrifugal shaft The clutch transmits power to a rear wheel; and the groove width of the main sheave is adjusted by an actuation 2 that controls movement of the movable flange of the main sheave, and the movable projection of the auxiliary sheave The rim advances in a direction that narrows the width of the groove. 28. The stepless speed changer of claim 21 or 24, wherein 129444-1001007.doc 1359916 the stepless speed changer is a belt type stepless speed change machine, wherein a belt is wound around a v-groove of a main sheave and a One of the sub-grooves has a v-shaped groove, and a gear ratio is controlled steplessly and steplessly by changing a groove width of each of the sheaves; and the belt is a metal belt. 29. The stepless speed changer of claim 28, wherein the slot width of the main sheave and the slot width of the secondary sheave are respectively adjusted by hydraulic cylinders. S 129444-1001007.doc