Operation amount detection device for joystick vehicle

Abstract

The operation amount detection device (50) is used for the following joystick vehicle, in which the pivot (40) fixed to the bracket (10) is inserted into one end of the pivot insertion hole (25) of the brake lever (20A), and the brake lever (20A) can rotate freely around the axis of the pivot (40). The operation amount detection device (50) includes a rotation angle sensor (51) fixed to the bracket (10) and a detection shaft (52) embedded in the other end of the pivot insertion hole (25). The central axis of the pivot (40) and the central axis of the detection shaft (52) are arranged on the same axis, the brake lever (20A) and the detection shaft (52) rotate together, and the rotation angle sensor (51) detects the rotation angle of the detection shaft (52). In this structure, the structure around the brake lever (20A) can be simplified and lightweight.

Description

Technical Field

[0001] The invention relates to an operation amount detection device for a joystick vehicle. Background Art

[0002] Some joystick vehicles are provided with an operation amount detection device that detects the operation amount of a brake lever.

[0003] As a conventional operation amount detection device, there is an operation amount detection device including a rotation angle sensor attached to a joystick and a connection arm having one end connected to a brake lever and the other end connected to the rotation angle sensor (see, for example, Patent Document 1).

[0004] In the above-mentioned operation amount detection device, the other end of the connection arm rotates in conjunction with the brake lever, and the rotation angle sensor detects the rotation angle of the other end of the connection arm to detect the operation amount of the brake lever.

[0005] Prior art literature

[0006] Patent Literature

[0007] Patent Document 1: Japanese Patent No. 6148273 Summary of the invention

[0008] Problems to be solved by the invention

[0009] The above-mentioned conventional operation amount detection device has the following problems: a mounting hole for the connection arm needs to be processed in the brake lever, and the weight of the connection arm is added to the periphery of the brake lever.

[0010] An object of the present invention is to solve the above-mentioned problems and to provide a joystick vehicle operation amount detection device that can simplify and reduce the weight of the structure around an operating element.

[0011] Solutions to Solve Problems

[0012] In order to solve the above-mentioned problems, the present invention relates to an operation amount detection device for a joystick vehicle, which is used for a joystick vehicle, in which a pivot is fixed to a bracket installed on the vehicle body, the pivot is inserted into one end of a pivot insertion hole of an operating member, and the operating member can rotate freely around the axis of the pivot. The operation amount detection device includes a rotation angle sensor fixed to the bracket and a detection shaft embedded in the other end of the pivot insertion hole. The central axis of the pivot and the central axis of the detection shaft are arranged on the same axis, the operating member and the detection shaft rotate together, and the rotation angle sensor detects the rotation angle of the detection shaft.

[0013] In the operation amount detection device of the present invention, since the detection shaft is inserted into the pivot insertion hole of the operating member, the detection shaft and the rotation angle sensor can be compactly arranged around the operating member, and the detection shaft can be made lightweight. In addition, since the detection shaft is arranged using the pivot insertion hole for rotating the operating member, it is not necessary to process a dedicated hole portion on the operating member for mounting the detection shaft.

[0014] In the above-mentioned operation amount detection device for a joystick vehicle, preferably, the detection shaft is engaged with an annular member by press-fitting the annular member into the pivot insertion hole, thereby rotating the operating element, the annular member, and the detection shaft together.

[0015] In this configuration, the annular member is processed so as to fit the detection shaft, and the annular member is press-fitted into the pivot insertion hole. This facilitates processing of the pivot insertion hole, and thus the processing cost of the operating member can be reduced.

[0016] The above-mentioned joystick vehicle operation amount detection device can be applied to the following structure: the operating member includes: a rod body; an ejector connected to a master cylinder or a connecting member; and a grip margin adjustment mechanism capable of adjusting the position of the rod body relative to the ejector around the axis of the pivot. In this case, the pivot insertion hole is formed on the rod body and the ejector, and the rod body and the ejector are freely rotatable around the axis of the pivot.

[0017] In the above-mentioned operating amount detection device for a joystick vehicle, it is preferred that the detection shaft is engaged with the annular component by pressing the annular component into the pivot insertion hole of the rod body and the ejector, thereby causing the rod body, the ejector, the annular component and the detection shaft to rotate together.

[0018] In this structure, the annular component is processed in a manner that the detection shaft is fitted, and the annular component is pressed into the pivot insertion hole, so that the processing of the pivot insertion hole becomes easy, thereby reducing the processing cost of the operating member. In addition, since the rod body and the ejector are integrated by using the annular component, the assembly operation of the operating member becomes easy.

[0019] In the above-mentioned joystick vehicle operation amount detection device, it is preferred that a fitting hole with a polygonal axial cross section is formed on the annular component, and a fitting portion with a polygonal axial cross section is formed on the detection shaft, so that the fitting portion of the detection shaft is fitted into the fitting hole of the annular component. In this structure, the annular component and the detection shaft can be reliably connected and rotated together.

[0020] Effects of the Invention

[0021] In the joystick vehicle operation amount detection device of the present invention, the operation amount of the operating element can be detected with high accuracy, and the structure around the operating element can be simplified and reduced in weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a diagram showing the overall configuration of a vehicle control device according to a first embodiment of the present invention.

[0023] Figure 2 It is a plan view showing a brake lever and an operation amount detection device according to a first embodiment of the present invention.

[0024] Figure 3 It is a front view showing a brake lever and an operation amount detection device according to a first embodiment of the present invention.

[0025] Figure 4 The present invention is a first embodiment of an operation amount detection device. Figure 3 IV-IV cross-sectional view.

[0026] Figure 5 It is an exploded perspective view showing the pivot shaft, the ring member, and the detection shaft according to the first embodiment of the present invention.

[0027] Figure 6 It is a diagram showing the overall configuration of a vehicle control device according to a second embodiment of the present invention.

[0028] Figure 7 It is a plan view showing a brake lever and an operation amount detection device according to a second embodiment of the present invention.

[0029] Figure 8 It is a front view showing a brake lever and an operation amount detection device according to a second embodiment of the present invention.

[0030] Fig. 9 The second embodiment of the present invention is an operation amount detection device. Figure 8 IX-IX sectional view.

[0031] Fig.10 It is an exploded perspective view showing a pivot shaft, an annular member, and a detection shaft according to a second embodiment of the present invention. DETAILED DESCRIPTION

[0032] Embodiments of the present invention will be described in detail with reference to the drawings as appropriate.

[0033] It should be noted that in the description of each embodiment, the same reference numerals are used for the same components, and duplicate descriptions are omitted.

[0034] [First embodiment]

[0035] like Figure 1 As shown, a joystick vehicle control device 1A according to a first embodiment (hereinafter referred to as a "vehicle control device") is used for a joystick type vehicle such as a motorcycle, a motorcycle, or an all-terrain vehicle (ATV).

[0036] The vehicle control device 1A constitutes a hydraulic brake system on the front wheel side or the rear wheel side of a joystick vehicle.

[0037] The vehicle control device 1A of the first embodiment includes a bracket 10 , a brake lever 20A (“operating member” in the claims), an operation amount detection device 50 , a master cylinder 60 , a hydraulic control device 100 , an electronic control device 200A, and a wheel brake B1 .

[0038] The wheel brake B1 of the vehicle control device 1A is a hydraulic disc brake that generates a braking force on a wheel by sandwiching a brake pad between brake discs using brake fluid pressure acting on a wheel cylinder W.

[0039] like Figure 2 As shown in FIG. 1 , the bracket 10 is divided into a bracket body 11 and a fixing member 12. The bracket body 11 is arranged on the front side of the joystick H, and the fixing member 12 is arranged on the rear side of the joystick H. The bracket body 11 and the fixing member 12 are connected by bolts (not shown). In this way, the bracket 10 is fixed to the joystick H by sandwiching the joystick H between the bracket body 11 and the fixing member 12.

[0040] A rod connecting portion 13 for connecting the brake rod 20A is formed at the front portion of the bracket body 11. Figure 3 As shown, in the rod connection portion 13, the upper plate portion 13a and the lower plate portion 13b are formed to be spaced apart in the up-down direction.

[0041] like Figure 4 As shown in FIG. 1 , a pivot fixing hole 13c is formed in the upper plate portion 13a in the vertical direction. The pivot fixing hole 13c is a threaded hole into which a bolt portion 42 of a pivot 40 described later is screwed.

[0042] The lower plate portion 13b has a shaft insertion hole 13d extending in the up-down direction. The shaft insertion hole 13d is a through hole through which a detection shaft 52 described later is inserted.

[0043] The central axis of the pivot fixing hole 13 c and the central axis of the shaft insertion hole 13 d are arranged on the same axis.

[0044] like Figure 3 As shown, a cylinder body 61 of a master cylinder 60 and a reservoir tank 62 are integrally formed on the bracket body 11 of the first embodiment.

[0045] The master cylinder 60 generates brake fluid pressure according to the force applied to the brake lever 20A by the driver.

[0046] A piston (not shown) is inserted into the cylinder 61. Figure 1 As shown, the cylinder 61 is connected to the hydraulic control device 100 via a pipe H1.

[0047] like Figure 2 As shown, the brake lever 20A includes a lever body 21 , an ejector 22 , and a grip margin adjustment mechanism 23 .

[0048] The lever body 21 is a rod-shaped member disposed along the joystick H, and is a portion operated by the driver with his fingers.

[0049] like Figure 3 As shown, at the base of the rod body 21, an upper portion 21a and a lower portion 21b are formed at a distance in the up-down direction.

[0050] The ejector 22 is a member connected to the base portion of the rod body 21 and connected to the master cylinder 60. A portion of the ejector 22 is disposed between the upper portion 21a and the lower portion 21b of the rod body 21.

[0051] A protrusion (not shown) is formed on the side surface of the ejector 22. The protrusion is inserted into the cylinder 61 of the master cylinder 60 and abuts against a piston (not shown) in the cylinder 61.

[0052] like Figure 4 As shown, a pivot insertion hole 25 having a circular axial cross section is formed through the upper portion 21a, the lower portion 21b and the ejector 22 of the lever body 21 in the vertical direction. A ring member 30 is press-fitted into the pivot insertion hole 25.

[0053] The annular member 30 is a cylindrical body with a bottom (see Figure 5 The annular member 30 is pressed into the pivot insertion hole 25 with the bottom 31 arranged at the lower side. The outer peripheral surface of the annular member 30 and the inner peripheral surface of the pivot insertion hole 25 are pressed in such a way that the annular member 30 and the brake lever 20A (lever body 21 and pusher 22) rotate together.

[0054] like Figure 5 As shown, a bearing hole 32 with a circular axial section is formed on the annular member 30. The bearing hole 32 opens at the upper end surface of the annular member 30. A fitting hole 33 with a polygonal axial section passes through the center of the bottom 31 of the annular member 30 in the vertical direction.

[0055] The pivot 40 is a shaft member inserted into the pivot insertion hole 25. The pivot 40 includes a support shaft portion 41 having a circular cross-section and a bolt portion 42 formed on the base end side of the support shaft portion 41.

[0056] like Figure 4As shown, the pivot 40 is inserted from above into the pivot fixing hole 13 c of the bracket body 11 , and the bolt portion 42 is screwed into the pivot fixing hole 13 c . Thus, the pivot 40 is fixed to the bracket body 11 .

[0057] The support shaft portion 41 of the pivot shaft 40 is inserted into the bearing hole 32 of the ring member 30. The ring member 30 is connected to the support shaft portion 41 so as to be rotatable around the axis.

[0058] In this way, the support shaft portion 41 of the pivot shaft 40 is inserted into the pivot shaft insertion hole 25. The ring member 30, the lever body 21, and the ejector 22 are connected to the support shaft portion 41 of the pivot shaft 40 so as to be rotatable around the axis.

[0059] In the vehicle control device 1A of the first embodiment, as Figure 2 As shown, the pivot 40 is fixed to the bracket 10, and the rod body 21 and the pusher 22 of the brake lever 20A are freely rotatable around the axis of the pivot 40. Furthermore, when the brake lever 20A is rotated from the initial position toward the operating handle H side, the piston (not shown) of the master cylinder 60 is pressed by the pusher 22, and the brake hydraulic pressure is generated in the master cylinder 60.

[0060] The brake lever 20A is provided with a gripping allowance adjustment mechanism 23 . The gripping allowance adjustment mechanism 23 includes a knob 23 a attached to a base portion of the lever body 21 .

[0061] A pin (not shown) protrudes laterally from the knob 23a, and the tip of the pin abuts against the side surface of the ejector 22. The gripping margin adjustment mechanism 23 is configured such that the protrusion amount of the pin changes when the knob 23a is rotated.

[0062] In the gripping allowance adjustment mechanism 23 , the position of the lever body 21 relative to the ejector 22 can be changed around the axis of the pivot 40 by rotating the knob 23 a .

[0063] By adjusting the tilt angle of the lever body 21 relative to the pusher 22 using the grip margin adjustment mechanism 23 , the distance (grip margin) between the lever body 21 and the grip G of the operating handle H in the initial state of the brake lever 20A can be adjusted.

[0064] like Figure 4 As shown in FIG. 1 , the operation amount detection device 50 detects the rotation amount of the brake lever 20A. The operation amount detection device 50 includes a rotation angle sensor 51 fixed to the bracket 10 and a detection shaft 52 fitted into the lower end of the pivot insertion hole 25 .

[0065] The detection shaft 52 is inserted into the shaft insertion hole 13d of the holder body 11. The detection shaft 52 is rotatable about the shaft insertion hole 13d. The rotation center axis of the pivot 40 and the rotation center axis of the detection shaft 52 are arranged on the same axis.

[0066] A fitting portion 52a protrudes from the center of the upper end surface of the detection shaft 52. The fitting portion 52a has a polygonal axial cross section and fits into the fitting hole 33 of the ring member 30.

[0067] Thus, the detection shaft 52 is fitted into the pivot insertion hole 25 via the ring member 30 . Then, the detection shaft 52 , the ring member 30 , the lever body 21 , and the ejector 22 rotate together around the axis of the pivot 40 .

[0068] A detection portion 52b protrudes from the center of the lower end surface of the detection shaft 52. The detection portion 52b has a rectangular axial cross section.

[0069] The rotation angle sensor 51 detects the rotation angle of the detection shaft 52. The rotation angle sensor 51 is fixed to the lower surface of the lower plate portion 13b of the bracket body 11 by bolts (not shown). The detection portion 52b of the detection shaft 52 is inserted into the rotation angle sensor 51.

[0070] By detecting the rotation angle of the detection shaft 52 using the rotation angle sensor 51 , the rotation amount of the brake lever 20A can be detected.

[0071] like Figure 1 As shown, the rotation angle sensor 51 is electrically connected to an electronic control device 200A described later. The rotation amount of the brake lever 20A detected by the rotation angle sensor 51 is output to the electronic control device 200A.

[0072] The initial position of the brake lever 20A is set in the operation amount detection device 50. The initial position of the brake lever 20A is the return position of the brake lever 20A after the brake lever 20A is rotated by being operated multiple times in a state where the brake lever 20A is assembled to the operating handle H. In this way, by setting the initial position of the brake lever 20A in a state where the components of the vehicle control device 1A are integrated, the rotation amount of the brake lever 20A can be detected with high accuracy.

[0073] In the vehicle control device 1A as described above, Figure 4 As shown, the rotation angle sensor 51 detects the rotation angle of the detection shaft 52 that rotates in conjunction with the brake lever 20A, thereby being able to detect the operation amount of the brake lever 20A with high accuracy.

[0074] In the operation amount detection device 50 of the first embodiment, since the detection shaft 52 is inserted into the pivot insertion hole 25 of the brake lever 20A, the detection shaft 52 and the rotation angle sensor 51 can be compactly arranged around the brake lever 20A. As a result, the detection shaft 52 can be miniaturized, and the operation amount detection device 50 can be lightweight.

[0075] In the operation amount detection device 50 of the first embodiment, since the detection shaft 52 is arranged using the pivot insertion hole 25 for rotating the brake lever 20A, it is not necessary to form a dedicated hole portion for mounting the detection shaft 52 in the brake lever 20A.

[0076] In the operation amount detection device 50 of the first embodiment, the axial cross-section of the fitting hole 33 of the ring member 30 and the fitting portion 52a of the detection shaft 52 is formed into a polygonal shape (see Figure 5 In this structure, by fitting the fitting portion 52a into the fitting hole 33, the ring member 30 and the detection shaft 52 can be reliably connected and rotated together.

[0077] In the operation amount detection device 50 of the first embodiment, the fitting hole 33 having a polygonal axial cross section is processed on the annular member 30, and the annular member 30 is pressed into the pivot insertion hole 25, so that the processing of the pivot insertion hole 25 becomes easy. As a result, the processing cost of the brake lever 20A can be reduced. In addition, since the rod body 21 and the pusher 22 are integrated by the annular member 30, the assembly operation of the brake lever 20A becomes easy.

[0078] As mentioned above, the structure of the vehicle control device 1A according to the first embodiment of the present invention has been described, but the present invention is not limited to the above-mentioned first embodiment, and can be modified appropriately within the scope not departing from the gist thereof.

[0079] In the vehicle control device 1A of the first embodiment, as Figure 2 As shown, the brake lever 20A is provided with a grip margin adjustment mechanism 23, but the brake lever 20A may not be provided with a grip margin adjustment mechanism 23. In this case, the brake lever 20A does not need to be divided into the lever body 21 and the pusher 22, and therefore, the brake lever 20A is composed of an integral component.

[0080] In the operation amount detection device 50 of the first embodiment, as Figure 4 As shown, the detection shaft 52 and the rotation angle sensor 51 are configured separately, but the rotation angle sensor 51 equipped with the detection shaft 52 may also be used.

[0081] In the operation amount detection device 50 of the first embodiment, the detection shaft 52 is fitted into the fitting hole 33 of the ring member 30 , but the detection shaft 52 may be directly fitted into the pivot insertion hole 25 .

[0082] In a first embodiment, if Figure 2 As shown in the figure, the operation amount detection device 50 applied to the hydraulic brake system having the brake lever 20A is described, but the operation amount detection device of the present invention can also be applied to a hydraulic brake system having a brake pedal.

[0083] In the first embodiment, the operation amount detection device 50 detects the rotation amount of the brake lever 20A, but the operation amount detection device of the present invention can be applied to various operating parts provided in a joystick vehicle. For example, when the operation amount detection device is configured to detect the rotation amount of the clutch lever, the rotation amount of the clutch lever can be detected under various conditions such as when the joystick vehicle is started, when it is running, and when it is stopped.

[0084] Next, the braking control in the vehicle control device 1A according to the first embodiment will be described.

[0085] like Figure 1 As shown, the vehicle control device 1A according to the first embodiment includes a hydraulic control device 100 and an electronic control device 200A.

[0086] The hydraulic control device 100 can perform anti-lock braking control for suppressing wheel locking by increasing, reducing or maintaining the brake hydraulic pressure of the wheel brake B1 or performing interlocking braking control for causing the wheel brake B1 to generate braking force in conjunction with other wheel brakes.

[0087] The hydraulic control device 100 has a metal base 110, and a hydraulic flow path is formed inside the base 110. The master cylinder 60 is connected to the inlet port of the base 110 via a pipe H1. In addition, the brake wheel cylinder W is connected to the outlet port of the base 110 via a pipe H2. In addition, a plurality of electromagnetic valves, an electric motor, and an electronic control device 200A are mounted on the base 110.

[0088] The electronic control device 200A is a microcomputer composed of a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), etc. The electronic control device 200A controls the opening and closing of the solenoid valve of the hydraulic control device 100 and the operation of the electric motor to perform anti-lock brake control and interlock brake control.

[0089] The electronic control device 200A includes a storage unit 210, a hydraulic pressure calculation unit 220, a control unit 230, a determination unit 240, and a stop light control unit 250. Processing of each unit in the electronic control device 200A is achieved by the CPU executing a program stored in the storage unit 210.

[0090] The storage unit 210 stores hydraulic pressure data indicating the correspondence between the amount of rotation of the brake lever 20A and the brake hydraulic pressure generated by the master cylinder 60. The storage unit 210 also stores a predetermined amount of rotation of the brake lever 20A when the ignition switch IS is turned on.

[0091] The hydraulic pressure calculation unit 220 estimates the brake hydraulic pressure generated by the master cylinder 60 based on the rotation amount of the brake lever 20A detected by the operation amount detection device 50 .

[0092] When the rotation amount of the brake lever 20A is input from the operation amount detection device 50, the hydraulic pressure calculation unit 220 calculates an estimated value of the brake hydraulic pressure corresponding to the detected rotation amount based on the hydraulic pressure data stored in the storage unit 210. Then, the hydraulic pressure calculation unit 220 outputs the estimated value of the brake hydraulic pressure to the control unit 230.

[0093] The control unit 230 controls the opening and closing of the solenoid valve and the operation of the electric motor of the hydraulic control device 100 based on the estimated value of the brake hydraulic pressure input from the hydraulic pressure calculation unit 220 to perform anti-lock brake control and interlock brake control.

[0094] The determination unit 240 determines the adjustment state of the wheel brake B1 based on the rotation amount of the brake lever 20A detected by the operation amount detection device 50 when the ignition switch IS is turned on.

[0095] The storage unit 210 stores a predetermined amount of rotation of the brake lever 20A when the ignition switch IS is turned on. The predetermined amount is a rotation amount of the brake lever 20A that causes the operation feel of the brake lever 20A to become hard and the wheel to be locked when the driver turns the brake lever 20A in a state where the wheel brake B1 is normally adjusted.

[0096] In this embodiment, when the driving unit such as the engine or motor of the joystick vehicle is started, the wheel brake B1 is activated by rotating the brake lever 20A. At this time, the driver rotates the brake lever 20A until the operation feeling of the brake lever 20A becomes hard to lock the wheel.

[0097] Furthermore, when the ignition switch IS is turned on, if the rotation amount of the brake lever 20A is greater than a predetermined amount, the operational feeling of the brake lever 20A does not become hard even if the rotation amount of the brake lever 20A reaches the predetermined amount.

[0098] In this case, since the brake pads of the wheel brake B1 may be worn greatly and the play of the brake lever 20A may be large, the determination unit 240 determines that the wheel brake B1 needs to be adjusted, and displays the determination result on a display unit such as a lamp or a monitor.

[0099] On the other hand, when the ignition switch IS is turned on, if the rotation amount of the brake lever 20A is smaller than the predetermined amount, the operational feeling of the brake lever 20A becomes harder before the rotation amount of the brake lever 20A reaches the predetermined amount.

[0100] In this case, the wheel brake B1 functions even when the brake lever 20A is not operated. For example, the wheel brake B1 may always generate braking force. Therefore, the determination unit 240 determines that the wheel brake B1 needs to be adjusted, and displays the determination result on a display unit such as a lamp or a monitor.

[0101] The brake light control unit 250 turns the brake light BL on and off based on the rotation amount of the brake lever 20A detected by the operation amount detection device 50 .

[0102] In the brake light control unit 250, when the brake lever 20A is gripped, if the amount of rotation of the brake lever 20A reaches a predetermined amount, the brake light BL is turned on, and when the brake lever 20A is returned, if the amount of rotation of the brake lever 20A is less than a predetermined amount, the brake light BL is turned off.

[0103] In the vehicle control device 1A as described above, the brake hydraulic pressure generated in the master cylinder 60 can be detected even without providing a hydraulic pressure sensor in the hydraulic pressure control device 100 , so the number of components of the hydraulic pressure control device 100 can be reduced.

[0104] Furthermore, in the vehicle control device 1A, it is possible to determine the adjustment state of the wheel brake B1 or to light the brake lamp BL with high accuracy based on the rotation amount of the brake lever 20A.

[0105] As mentioned above, the control of the vehicle control device 1A according to the first embodiment of the present invention has been described, but the present invention is not limited to the above-mentioned first embodiment, and can be modified appropriately within the scope not departing from the gist of the present invention.

[0106] For example, the electronic control device 200A can also determine the adjustment state of the wheel brake B1 based on the rotation amount of the brake lever 20A and the acceleration of the vehicle body. In this structure, even if the rotation amount of the brake lever 20A is small, when the decrease in the acceleration of the vehicle body detected by the acceleration sensor is large, the wheel brake B1 may function even in the state where the brake lever 20A is not operated, and therefore, the determination unit 240 determines that the wheel brake B1 needs to be adjusted.

[0107] Furthermore, when the operation amount detection device of the vehicle control device of the present invention detects the rotation amount of the clutch lever, the electronic control device can also determine the adjustment state of the clutch based on the rotation amount of the clutch lever.

[0108] [Second Embodiment]

[0109] Next, a vehicle control device 1B according to a second embodiment will be described.

[0110] like Figure 6 As shown, the vehicle control device 1B according to the second embodiment constitutes a mechanical brake system on the front wheel side or the rear wheel side of a joystick vehicle.

[0111] The vehicle control device 1B according to the second embodiment includes a bracket 10 , a brake lever 20B (“operating member” in the claims), an operation amount detection device 50 , an electronic control device 200B, and a wheel brake B2 .

[0112] The wheel brake B2 of the vehicle control device 1B is a mechanical drum brake. In the wheel brake B2, when a tensile force is applied to the brake cable C ("connecting member" in the claims) by operating the brake lever 20B, the rod R tilts and presses the brake shoe against the inner peripheral surface of the brake drum, thereby generating a braking force on the wheel.

[0113] In the vehicle control device 1B of the second embodiment, as shown in FIG. Figure 8 As shown, the base 28 of the brake lever 20B is disposed between the upper plate portion 13a and the lower plate portion 13b of the lever connecting portion 13 of the bracket 10. Figure 6 As shown, one end of the brake cable C is coupled to the base portion 28 of the brake lever 20B.

[0114] like Fig. 9 As shown in FIG. 1 , the base portion 28 of the brake lever 20B has a pivot insertion hole 25 extending vertically therethrough. A ring member 35 is inserted into the lower end of the pivot insertion hole 25 .

[0115] The annular member 35 of the second embodiment is an annular member and is press-fitted into the lower end of the pivot insertion hole 25. The outer circumference of the annular member 35 and the inner circumference of the pivot insertion hole 25 are press-contacted so that the annular member 35 and the brake lever 20B rotate together.

[0116] In the center of the ring member 35 of the second embodiment, a fitting hole 36 having a polygonal axial cross section is formed through the ring member 35 (see FIG. Fig.10 ).

[0117] In the pivot 40 of the second embodiment, the support shaft portion 41 is inserted into the pivot insertion hole 25, and the bolt portion 42 is screwed into the pivot fixing hole 13c. Thus, the base portion 28 of the brake lever 20B is rotatably connected to the support shaft portion 41.

[0118] In the vehicle control device 1B of the second embodiment, as shown in FIG. Figure 7As shown, the pivot 40 is fixed to the bracket body 11, and the brake lever 20B is freely rotatable around the axis of the pivot 40. Furthermore, if the brake lever 20B is rotated from the initial position toward the operating handle H side, a tensile force is applied to the brake cable C, and the wheel brake B2 is operated.

[0119] like Fig. 9 As shown in the figure, the fitting portion 52a of the detection shaft 52 of the operation amount detection device 50 of the second embodiment is fitted into the fitting hole 36 of the annular member 35. In addition, in the operation amount detection device 50, the rotation angle sensor 51 detects the rotation angle of the detection shaft 52, thereby being able to detect the rotation amount of the brake lever 20B. The rotation amount of the brake lever 20B detected by the rotation angle sensor 51 is output to the electronic control device 200B.

[0120] Next, the braking control in the vehicle control device 1B according to the second embodiment will be described.

[0121] like Figure 6 As shown, the vehicle control device 1B of the second embodiment includes an electronic control device 200B. The electronic control device 200B includes a storage unit 210, a tensile force calculation unit 260, a determination unit 240, and a stop light control unit 250.

[0122] The storage unit 210 of the second embodiment stores tension force data indicating the relationship between the rotation amount of the brake lever 20B and the tension force applied to the brake cable C.

[0123] The tensile force calculation unit 260 estimates the tensile force applied to the brake cable C based on the rotation amount of the brake lever 20B.

[0124] When the rotation amount of the brake lever 20B is input from the operation amount detection device 50 , the tension calculation unit 260 calculates an estimated value of the tension corresponding to the detected rotation amount based on the tension data stored in the storage unit 210 .

[0125] The estimated value of the tensile force calculated by the tensile force calculation unit 260 is input to, for example, a control unit of a hydraulic control device provided in a hydraulic brake system of another wheel, and interlocking brake control is performed based on the estimated value of the tensile force.

[0126] In the vehicle control device 1B as described above, even if a tension sensor is not provided on the brake cable C, the tensile force applied to the brake cable C can be detected, so the number of components of the wheel brake B2 can be reduced.

[0127] Furthermore, in the vehicle control device 1B, based on the rotation amount of the brake lever 20B, the determination unit 240 can determine the adjustment state of the wheel brake B2 or the brake light control unit 250 can light the brake light BL with high accuracy.

[0128] As described above, the present invention can also be applied to a mechanical brake system. The brake device 1B of the second embodiment has the same structure as the vehicle control device 1A of the first embodiment (see Figure 1 ) have the same effect.

[0129] The vehicle control device 1B according to the second embodiment of the present invention can be modified as appropriate within the scope of the gist of the present invention, similarly to the above-described first embodiment.

[0130] For example, the vehicle control device 1B of the second embodiment may be combined with the vehicle control device 1A of the first embodiment (see Figure 2 ) Similarly, the brake lever 20B is composed of a lever body and an ejector, and a gripping margin adjustment mechanism is provided.

[0131] In the vehicle control device of the second embodiment, the operation amount detection device may detect the rotation amount of the clutch lever, and the electronic control device may determine the adjustment state of the clutch based on the rotation amount of the clutch lever.

[0132] Description of Reference Numerals

[0133] 1A Vehicle Control Device (First Embodiment)

[0134] 1B Vehicle Control Device (Second Embodiment)

[0135] 10 Bracket

[0136] 11Stand body

[0137] 13-bar connection

[0138] 13c pivot fixing hole

[0139] 13d shaft insertion hole

[0140] 20A brake lever (first embodiment)

[0141] 20B Brake lever (second embodiment)

[0142] 21 rod body

[0143] 22 ejector

[0144] 23 Grip margin adjustment mechanism

[0145] 23a Knob

[0146] 25 Pivot insertion hole

[0147] 30 Ring member (first embodiment)

[0148] 31 Bottom

[0149] 32 bearing holes

[0150] 33 fitting holes

[0151] 35 Ring member (second embodiment)

[0152] 36 fitting holes

[0153] 40 Pivot

[0154] 41 shaft

[0155] 42 bolt part

[0156] 50 Operation amount detection device

[0157] 51 Rotation angle sensor

[0158] 52 detection axis

[0159] 52a chimeric part

[0160] 52b Detection Department

[0161] 60 Master Cylinder

[0162] 61 cylinder block

[0163] 62 fluid storage tank

[0164] 100 Hydraulic control device

[0165] 110 base

[0166] 200A Electronic Control Device (First Embodiment)

[0167] 200B Electronic Control Device (Second Embodiment)

[0168] 210 Storage Department

[0169] 220 Hydraulic Calculation Department

[0170] 230 Control Department

[0171] 240 Judgment Department

[0172] 250 brake light control unit

[0173] 260 Tensile force calculation unit

[0174] B1 Wheel brake (first embodiment)

[0175] B2 Wheel brake (second embodiment)

[0176] BL brake light

[0177] C Brake Cable

[0178] H Joystick

[0179] IS ignition switch

[0180] W wheel cylinder

Claims

1. An operation amount detection device for a joystick vehicle, wherein a pivot is fixed to a bracket mounted on a vehicle body, the pivot is inserted into one end of a pivot insertion hole of an operating member, and the operating member is rotatable around the axis of the pivot, characterized in that: The control handle vehicle operation amount detection device comprises: a rotation angle sensor, the rotation angle sensor being fixed to the bracket; and a detection shaft which is inserted into the other end of the pivot insertion hole so as to be rotatable together with the operating member, The central axis of the pivot and the central axis of the detection axis are arranged on the same axis. The rotation angle sensor detects a rotation angle of the detection shaft.

2. The joystick vehicle operation amount detection device according to claim 1, characterized in that: An annular component is pressed into the pivot insertion hole. The detection shaft is engaged with the annular component. The operating member, the annular component, and the detection shaft rotate together.

3. The joystick vehicle operation amount detection device according to claim 1, characterized in that: The operating element has: Rod body; an ejector connected to the master cylinder or the connecting member; and A grip margin adjustment mechanism, wherein the grip margin adjustment mechanism is capable of adjusting the position of the rod body relative to the ejector around the axis of the pivot, The pivot insertion hole is formed on the rod body and the ejector. The rod body and the ejector are rotatable around the axis of the pivot.

4. The joystick vehicle operation amount detection device according to claim 3, characterized in that: An annular component is pressed into the pivot insertion hole of the rod body and the ejector. The detection shaft is engaged with the annular component. The rod body, the ejector, the annular member, and the detection shaft rotate together.

5. The joystick vehicle operation amount detection device according to claim 2 or 4, characterized in that: The annular component is provided with a fitting hole having a polygonal axial cross section. A fitting portion having a polygonal cross section is formed on the detection shaft. The fitting portion of the detection shaft is fitted into the fitting hole of the annular member.

Images