JP2005315162A - Leisure vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a leisure vehicle in which an accelerator can be more smoothly operated with a throttle operation grip at the cornering. <P>SOLUTION: The leisure vehicle is provided with a throttle valve 1, an actuator (an electric motor) 5 to drive it, a controller 7 to control the actuator 5 based on a manupulated variable from a throttle position sensor 11, a throttle operation grip 9, and a throttle position sensor 11. A dead zone is installed in the throttle position sensor 11 over the predetermined range from zero of the sense value by the throttle positioner sensor to zero the output value from the throttle position sensor 11 in the dead zone. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to leisure vehicles such as motorcycles, ATVs (ALL Terrain Vehicles), and PWCs (Personal Water Crafts), and more particularly to leisure vehicles characterized by a throttle system that controls the rotational speed of an engine.

  In recent years, even in leisure vehicles such as motorcycles (hereinafter also referred to simply as motorcycles in this specification), when an accelerator operation is performed in the same manner as a general (general purpose) passenger vehicle, the throttle position sensor detects the operation. Based on the detected value, the control device operates an actuator (generally an electric motor) attached to the throttle device to operate the throttle valve of the throttle device, thereby obtaining a predetermined engine speed. There is what is configured as described above (see Patent Document 1).

In the case of a motorcycle or the like configured to operate the throttle valve via the actuator, the control device is configured to operate the actuator based on the value detected by the throttle position sensor. It is directly reflected in the actuator operation.
Japanese Patent Application Laid-Open No. 2002-129987.

  By the way, when a so-called “tight” corner is cornered in a motorcycle, the throttle valve is closed and decelerated before entering the corner, and the throttle valve is moved again when the corner reaches a predetermined position (end position). Open only a fixed amount to accelerate. Then, the state must be maintained as it is during the closing operation, and when the opening operation, that is, when the rider starts the accelerator operation, the opening speed is matched well with the vehicle speed at that time. It is necessary to operate.

  However, in the case of a motorcycle or the like configured to operate the throttle valve via the actuator, the actuator operates the throttle valve as it is based on the value detected by the throttle position sensor as described above. For this reason, in order to maximize the performance of the motorcycle or the like, the rider is required to always perform the operation speed matching the start timing of the opening operation and the vehicle speed accurately.

  The present invention has been made in view of such a situation, and the accelerator operation at the throttle operation grip is more controlled at the time of cornering as in the case of operating the throttle valve at a distant position by the wire. The purpose is to provide a leisure vehicle such as a motorcycle that can smoothly perform the above.

The object of the present invention is solved by a leisure vehicle according to claim 1. That is, the leisure vehicle according to the first aspect of the present invention is provided with a throttle operation grip provided on the steering handle and operated by the rider's (driver) hand, and an operation amount of the throttle operation grip attached to the throttle operation grip. Leisure equipped with a throttle position sensor for controlling the engine, a throttle valve for controlling the rotational speed of the engine, an actuator for driving the throttle valve, and a control device for controlling the actuator based on an operation amount detected by the throttle position sensor. In the vehicle
The throttle position sensor is provided with a dead zone over a predetermined range from a value detected by the throttle position sensor, and an output value from the throttle position sensor is set to zero in the dead zone.

The leisure vehicle according to the second aspect of the present invention is provided with a throttle operation grip provided on a steering handle and operated by a rider's (driver's) hand, and an operation amount of the throttle operation grip attached to the throttle operation grip. Leisure equipped with a throttle position sensor for controlling the engine, a throttle valve for controlling the rotational speed of the engine, an actuator for driving the throttle valve, and a control device for controlling the actuator based on an operation amount detected by the throttle position sensor In the vehicle
The control device determines that the detection value detected by the throttle position sensor is zero over a predetermined range from zero, and controls the actuator not to operate within the predetermined range from zero.

A leisure vehicle according to the third aspect of the present invention includes a throttle operation grip provided on a steering handle and operated by a rider's (driver's) hand, and a throttle position sensor for indirectly detecting an operation amount of the throttle operation grip. A leisure vehicle comprising: a throttle valve that controls the rotational speed of the engine; an actuator that drives the throttle valve; and a control device that controls the actuator based on an operation amount detected by the throttle position sensor.
The leisure vehicle is provided with a reproduction mechanism that reproduces the operation of the throttle operation grip with a play in the region near the zero position of the operation via a wire, and the operation of the reproduction mechanism is detected in the reproduction mechanism. The throttle position sensor is arranged.

According to the leisure vehicle according to the present invention configured as described above, it is possible to perform a throttle operation that maximizes the performance of the leisure vehicle during cornering. That means
According to the leisure vehicle according to the first aspect of the invention, the throttle position sensor is provided with a dead zone over a predetermined range from a value detected by the throttle position sensor, and the output value from the throttle position sensor is set to zero in this dead zone. By
According to the leisure vehicle of the second invention, the control device determines that the detected value detected by the throttle position sensor is zero over a predetermined range from zero, and the actuator operates in this predetermined range. By controlling not to
Furthermore, according to the leisure vehicle according to the third aspect of the invention, there is provided a reproduction mechanism that reproduces the operation of the throttle operation grip with play in the region near the zero position of the operation through the wire. By placing the throttle position sensor in the mechanism,
To match the delicate timing of the ON throttle between the start timing of the throttle operation grip of the rider (driver) from the closing operation to the opening operation and the operation start timing of the engine throttle valve in the opening direction. A useful play is formed.

  Therefore, by this play, the rider (driver) can easily maintain the closed state when the accelerator is closed during cornering, and can smoothly open at the start of the opening operation. .

  In the leisure vehicle according to the third aspect of the present invention, if the main part of the reproduction mechanism is provided in the vicinity of the throttle valve, the space is preferable.

  Further, in the leisure vehicle according to the third aspect of the present invention, when the principal part of the reproduction mechanism is provided between the fuel tank of the leisure vehicle and the engine, the portion that is normally a dead space is effectively utilized. This is the preferred embodiment. In particular, in the case where the leisure vehicle is a motorcycle, such a configuration is a preferred embodiment that effectively utilizes a portion that is normally a dead space.

  In addition, in the leisure vehicle according to the third aspect of the invention, when the main part of the reproduction mechanism is a pulley that rotates about a pivot shaft, an embodiment that can be implemented inexpensively and reliably and a conventional cable are provided. This is a preferred embodiment in that the same feeling as that of the throttle system can be obtained.

  Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings, taking a motorcycle as a kind of leisure vehicle as an example.

  FIG. 1 is a schematic diagram conceptually showing a configuration of a main part (tip portion) of a motorcycle according to one embodiment (first embodiment) of the present invention, and FIG. Taking the relevant elements in the throttle operation, the grip operation shown in FIG. 1, the rotation operation of the grip, the throttle position sensor, the control unit (control amount to the motor in the control unit), the motor drive amount, the valve operation amount It is a diagram which shows each operation | movement range.

  In FIG. 1, 1 is a throttle valve disposed in the intake passage, 3 is a valve position sensor for detecting the operation state (operation amount) of the throttle valve 1, and 5 is an electric motor as an actuator for operating the throttle valve 1. A motor, 7 is a control device that controls the operation of the electric motor 5, and 9 is a throttle that is disposed at one end (generally, the right end) of a bar-type handle Hd of the motorcycle and is rotatable by a predetermined angle. An operation grip, 11 is a throttle position sensor disposed on the throttle operation grip 9, 20 is a motorcycle frame (main frame), and 22 is a steering head. Although omitted in FIG. 1, the handle Hd is fixed to the steering head 22 in front of the frame 20 at the center thereof.

In this embodiment, the throttle valve 1 is arranged such that a motorcycle is equipped with a four-cylinder engine and has an intake passage for each cylinder, so that four throttle valves 1 are arranged in parallel as shown in FIG. . These four throttle valves 1 are fixed to one shaft S1, and this shaft S is transmitted by a transmission mechanism 8 (in this embodiment, a pair of timing pulleys 8a and 8b and a timing belt 8c wound between them). And is driven by the electric motor 5. The state of the shaft S1 (position change state) is configured to be detected by a valve position sensor 3 disposed at one end (left end in FIG. 1) of the shaft S1. The electric motor 5 is controlled by the control device 7 via a control line 6. The control device 7 is connected to the throttle position sensor 11 through a signal line 10. The throttle position sensor 11 is configured to detect the operation amount (or the position at that time) when the rider operates the throttle operation grip 9.
In the case of the motorcycle according to the first embodiment, as shown in FIG. 1, when the throttle operation grip 9 is rotated, the throttle position sensor 11 that detects the rotation is moved to the zero position (FIG. 3). (Refer to the position of (0%)) (for example, about 2 degrees as the rotation angle: difference amount of (0%) position on each of the left and right vertical axes in FIG. 3: this difference amount becomes a dead zone. ) Is not detected, that is, the output value from the throttle position sensor 11 is zero within the predetermined range. A bidirectional arrow in FIG. 3 shows the relationship between the range of operation of the throttle operation grip 9 and the range of operation detected by the throttle position sensor 11. It should be noted that both the operation range and the detected operation range are shown as “operation range”.

Accordingly, when the rider rotates the throttle operation grip 9 as shown in FIG. 1, the detection signal value (output value) transmitted from the throttle position sensor 11 to the control device 7 from the zero position over a predetermined range is It becomes zero. When the valve is further rotated, the throttle position sensor 11 transmits a detection signal (output value) having a value matching the degree of rotation (rotation angle) to the control device 7. The control device 7 drives the electric motor 5 based on the detection signal (output value). As a result, the shaft S1 of the throttle valve 1 is driven via the transmission mechanism 8, and an engine (not shown). The throttle valve 1 arranged in the intake passage to (2) is opened based on the control value. The driving state (position) of the shaft S1 is detected by the valve position sensor 3.
FIG. 6 shows the rotation of the throttle operation grip 9 (grip rotation degree) and the opening state of the throttle valve 1 rotated based on the rotation. In FIG. 6, the vertical axis indicates the grip rotation degree and the valve opening, and the horizontal axis indicates time, and the rotation of the throttle operation grip 9 and the opening of the throttle valve 1 executed corresponding thereto are shown. Represents a state.
Therefore, the position at which the line drawn downward from the point on the line representing the grip rotation degree (on the solid line) and the line representing the valve opening (dashed line) indicates the valve opening at that time. Become.

  In the case of the motorcycle according to the present embodiment configured as described above, a dead zone is provided in the throttle position sensor 11 over a predetermined range from zero to a predetermined value detected by the throttle position sensor 11. By setting the output value of the engine to zero, a useful play is formed between the start timing of the throttle operation grip 9 of the rider from the closing operation to the opening operation and the start timing of the engine throttle valve in the opening direction. The

By the way, it can replace with the said Example (Example 1), and can obtain the effect similar to the said Example 1 fundamentally by comprising as follows. That means
In the configuration shown in FIG. 1 (configuration shown in the block diagram), the throttle position sensor 11 can also be achieved by transmitting a detection signal corresponding to the operation state of the throttle operation grip 9 to the control device 7. That is, the throttle position sensor 11 is configured to transmit the input value detected corresponding to the rotation state of the throttle operation grip 9 as it is to the control device 7 as an output value. Then, based on the internal program or control chart, the control device 7 has a detection value input from the throttle position sensor 11 within a predetermined range from zero (for example, the rotation of the throttle operation grip 9 as shown in FIG. 4). The detected value is determined to be zero over a range of about 2 degrees in motility, and within this predetermined range, a signal indicating that the electric motor 5 should be operated is not output, and the predetermined range is within the throttle operation grip. When the detected value related to the degree of rotation 9 exceeds, a signal indicating that the electric motor 5 that matches the degree of rotation should be operated may be output. Also in such a case, a dead zone occurs as shown in FIG. 6, which is useful between the start timing of the rider's throttle operation grip 9 from the closing operation to the opening operation and the start timing of the engine throttle valve in the opening direction. Play can be formed.

  Next, a motorcycle according to a third embodiment (Example 3) of the present invention will be described in detail with reference to the drawings.

  FIG. 2 is a schematic diagram conceptually showing the configuration of the main part (tip portion) of the motorcycle according to the third embodiment. FIG. FIG. 3 is a diagram illustrating operating ranges of a throttle operation grip rotation operation, a throttle position sensor, a control unit (control amount to a motor in the control unit), a motor drive amount, and a valve operation amount illustrated in FIG. .

In FIG. 2, 1 is a throttle valve, 3 is a valve position sensor for detecting the operation state (operation amount) of the throttle valve 1, 5 is an electric motor as an actuator for operating the throttle valve 1, and 7 is the electric motor 5 described above. A control device 9 for controlling the operation of the throttle handle 9 is provided at one end (generally the right end) of the bar-type handle Hd of the motorcycle and is configured to be rotatable by a predetermined angle. 9 is a pivotable elliptical pulley in plan view that forms a part (main part) of the reproduction mechanism Bt that reproduces the rotation operation of 9 at a separated position, and 11 is arranged on the rotation axis of the pulley 4 of the reproduction mechanism Bt. The installed throttle position sensor 13 transmits the operation between the throttle operating grip 9 and the pulley 4 which form part of the reproduction mechanism Bt. That is a pair of wires. In this embodiment, the pulley 4 of the reproduction mechanism Bt is disposed at a position near the throttle valve 1. Further, the pulley 4 of the reproduction mechanism Bt is arranged at a position between a fuel tank (not shown) of the motorcycle and the engine even in the vertical arrangement position.
In FIG. 2, 20 is a motorcycle frame (main frame), and 22 is a steering head. Although not shown in FIG. 1, the handle Hd is fixed to the steering head 22 in front of the frame 20 at the center portion thereof.

In the third embodiment, four throttle valves 1 are arranged in parallel corresponding to the number of cylinders of an engine (not shown) as in the first and second embodiments. These four throttle valves 1 are fixed to one shaft S1, and this shaft S is transmitted by a transmission mechanism 8 (in this embodiment, a pair of timing pulleys 8a and 8b and a timing belt 8c wound between them). And is driven by the electric motor 5. And the state of this axis | shaft S1 is comprised so that the valve position sensor 3 arrange | positioned at the end (left end in FIG. 2) of this axis | shaft S1 may detect. The electric motor 5 is controlled by the control device 7 via a control line 6. The control device 7 is connected to the throttle position sensor 11 through a signal line 10. Further, when the rider operates the throttle operation grip 9, the throttle position sensor 11 is reproduced on the pulley 4 of the reproduction mechanism Bt in a position where the operation amount (or the position at that time) is separated, and detects the value. It is configured to be able to. In this embodiment, the reproduction mechanism Bt includes a pulley 4 that is rotatable about the above-described central axis, and one end of each pulley 4 is attached to both ends of the pulley 4 and the throttle operation grip 9. Are constituted by a pair of the wires 13.
In the case of the motorcycle according to this embodiment, as shown in FIG. 2, when the throttle operation grip 9 is rotated, the pulley 4 of the reproduction mechanism Bt is rotated around the central axis. The throttle position sensor 11 detects the rotation. Here, the turning operation from the throttle operation grip 9 is performed on the pulley 4 from a zero position (refer to the position (0%) in FIG. 5) to a predetermined range (for example, about 2 degrees as a turning angle: FIG. 5). The difference between the positions of the right and left vertical axes (0%): this difference is a dead zone) is not transmitted. That is, a mechanical play is provided in a transmission portion between the throttle operation grip 9 and the reproduction mechanism Bt. For this reason, even if the rotation operation of the throttle operation grip 9 within the predetermined range is performed, the output value from the throttle position sensor 11 to the control device 6 becomes zero. A bidirectional arrow in FIG. 5 represents the relationship between the range of operation of the throttle operation grip 9 and the range of operation detected by the throttle position sensor 11.

Therefore, when the rider rotates the throttle operation grip 9, the detection signal (output value) transmitted from the throttle position sensor 11 to the control device 7 is zero over the predetermined range from the zero position. When the valve is further rotated, the throttle position sensor 11 transmits a detection signal (output value) having a value matching the degree of rotation (rotation angle) to the control device 7. The control device 7 drives the electric motor 5 based on the detection signal (output value). As a result, the shaft S1 of the throttle valve 1 is driven via the transmission mechanism 8, and an engine (not shown). The throttle valve 1 arranged in the intake passage to (2) is opened based on the control value. The driving state (position) of the shaft S1 is detected by the valve position sensor 3.
FIG. 6 shows the rotation of the throttle operation grip 9 (grip rotation degree) and the opening state of the throttle valve 1 rotated based on the rotation.

  In the case of the motorcycle according to the present embodiment configured as described above, the reproduction mechanism Bt is interposed between the throttle operation grip 9 and the throttle position sensor 11, and the reproduction mechanism Bt and the throttle operation grip are provided. 9, a dead zone is provided by forming a mechanical play. Due to this dead zone, when the throttle operating grip 9 rotates within a predetermined range, the output value from the throttle position sensor 11 becomes zero, and the throttle operating grip of the rider A useful play is formed between the starting operation from the 9 closing operation to the opening operation and the start timing of the engine throttle valve in the opening direction.

  The present invention can be used for leisure vehicles such as motorcycles.

1 is a schematic diagram conceptually showing a configuration of a main part (tip portion) of a motorcycle according to an embodiment (first embodiment) of the invention. FIG. FIG. 6 is a schematic diagram conceptually showing the structure of a main part (tip portion) of a motorcycle according to an embodiment (third embodiment) of the invention. Taking the operating range on the vertical axis and the elements related to the throttle operation on the horizontal axis, the grip operation grip turning operation shown in FIG. It is a diagram which shows the operation range of a motor drive amount and a valve operation amount. Taking the operation range on the vertical axis and the elements related to the throttle operation on the horizontal axis, the grip operation grip rotation operation, the throttle position sensor, and the control unit (control amount to the motor in the control unit) according to the second embodiment. ), An operation range of a motor drive amount and a valve operation amount. Taking the operating range on the vertical axis and each element related to the throttle operation on the horizontal axis, the rotation operation of the throttle operation grip shown in FIG. It is a diagram which shows the operation range of a motor drive amount and a valve operation amount. The vertical axis indicates the grip rotation degree and the valve opening, and the horizontal axis indicates time. The rotation of the throttle operation grip (described as grip in FIG. 6) and the opening of the throttle valve (described as valve in FIG. 6). It is a diagram showing the state of.

Explanation of symbols

1 ... Throttle valve
5 ... Electric motor (actuator)
7. Control device
9 ... Throttle operation grip
11 ... Throttle position sensor

Claims (6)

A throttle operation grip provided on the steering handle and operated by the rider's hand; a throttle position sensor attached to the throttle operation grip for detecting the operation amount of the throttle operation grip; a throttle valve for controlling the engine speed; In a leisure vehicle comprising an actuator that drives a throttle valve, and a control device that controls the actuator based on an operation amount detected by the throttle position sensor,
A leisure vehicle characterized in that the throttle position sensor is provided with a dead zone over a predetermined range from a value detected by the throttle position sensor, and an output value from the throttle position sensor is set to zero in the dead zone. A throttle operation grip provided on the steering handle and operated by the rider's hand; a throttle position sensor attached to the throttle operation grip for detecting the operation amount of the throttle operation grip; a throttle valve for controlling the engine speed; In a leisure vehicle comprising an actuator that drives a throttle valve, and a control device that controls the actuator based on an operation amount detected by the throttle position sensor,
A leisure vehicle characterized in that the control device determines that the detection value detected by the throttle position sensor is zero over a predetermined range from zero and controls the actuator not to operate within the predetermined range from zero. A throttle operation grip provided on the steering handle and operated by the rider's hand, a throttle position sensor for indirectly detecting the operation amount of the throttle operation grip, a throttle valve for controlling the engine speed, and driving the throttle valve A leisure vehicle comprising: an actuator for controlling the actuator and a control device for controlling the actuator based on an operation amount detected by the throttle position sensor;
The leisure vehicle is provided with a reproduction mechanism that reproduces the operation of the throttle operation grip with a play in the region near the zero position of the operation via a wire, and the operation of the reproduction mechanism is detected in the reproduction mechanism. A leisure vehicle characterized in that the throttle position sensor is arranged.   4. The leisure vehicle according to claim 3, wherein a main part of the reproduction mechanism is provided in the vicinity of the throttle valve.   5. The leisure vehicle according to claim 3, wherein a main part of the reproduction mechanism is provided between a fuel tank of the leisure vehicle and the engine.   The leisure vehicle according to any one of claims 3 to 5, wherein a main part of the reproduction mechanism is a pulley that rotates about a pivot shaft.

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