Accelerator

Abstract

To provide an accelerator device capable of appropriately applying a reaction force to a pedal lever.SOLUTION: An accelerator device 1 comprises a pedal lever 20 operating according to a stepping operation, a motor 31 which generates driving force by electric conduction, and a force transmission mechanism 40. The force transmission mechanism 40 includes an actuator lever 45, and applies a reaction force, which is a force in a direction opposite to a stepping direction, to the petal lever 20 by electric conduction to the motor 31 via the actuator lever 45. The actuator lever 45 can rotate by a driving force of the motor 31, and abuts on the pedal lever 20 at a lever abutting point PA. A rotation axis 451 of the actuator lever 45 is located between a first straight line L1, which is a straight line connecting the lever abutting point PA and a fulcrum member 22 when a pedal opening θp is a first stepping angle, and a second straight line L2, which is a straight line connecting the lever abutting point PA and the fulcrum member 22 when the pedal opening θp is a second stepping angle.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an accelerator device. [Background technology]

[0002] Conventionally, there have been known vehicle accelerator pedal devices equipped with a reaction force application mechanism. For example, in Patent Document 1, the reaction force application mechanism includes a drive source that generates a reaction force, a transmission member that transmits the reaction force generated by the drive source to a pedal-side arm, and a bracket that supports the drive source, and applies a reaction force to the pedal-side arm in response to a control signal from a control unit. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 5636522 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, if the state of contact with the power transmission member changes depending on the pedal depression angle, the magnitude of the reaction force transmitted to the driver will change even if the same torque is applied by the actuator.

[0005] The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide an accelerator device that can appropriately apply a reaction force to a pedal lever. [Means for solving the problem]

[0006] The accelerator device of the first aspect of the present invention includes a pedal lever (20), a drive source (31), and a power transmission mechanism (40). The pedal lever operates in response to depression of the pedal. The drive source generates a driving force when energized. The power transmission mechanism has an actuator lever (45) that is rotatable by the driving force of the drive source and abuts against the pedal lever at a lever abutment point. When energized to the drive source, a reaction force, which is a force in the direction opposite to the pedal depression direction, is applied to the pedal lever via the actuator lever.

[0007] Within the range of the pedal lever from fully closed to fully open, the region between the first depression angle and the second depression angle of the pedal lever is defined as the reaction force application region. The center of rotation of the member (21) that abuts against the actuator lever is defined as the pedal rotation fulcrum (22). The rotation axis (451) of the actuator lever is located between a first line, which is a line connecting the lever abutment point and the pedal rotation fulcrum when the depression angle is the first depression angle, and a second line, which is a line connecting the lever abutment point and the pedal rotation fulcrum when the depression angle is the second depression angle. This reduces the variation in the reaction force applied to the pedal lever.

[0008] An accelerator device according to a second aspect of the present invention includes a pedal lever (70), a drive source (81), and a power transmission mechanism (83). The pedal lever operates in response to depression of the pedal. The drive source generates a driving force when energized. The power transmission mechanism has an actuator lever (85) that is directly movable by the driving force of the drive source and abuts against the pedal lever at a lever abutment point. When energized, the drive source applies a reaction force, which is a force in the direction opposite to the pedal depression direction, to the pedal lever via the actuator lever.

[0009] Within the range of the pedal lever from fully closed to fully open, the region between the first depression angle and the second depression angle of the pedal lever is defined as the reaction force application region. The center of rotation of the member (71) that abuts against the actuator lever is defined as the pedal rotation fulcrum (721). The linear axis (851) of the actuator lever is located between a first line, which is a line passing through the lever abutment point and perpendicular to the line connecting the lever abutment point and the pedal rotation fulcrum when the depression angle is the first depression angle, and a second line, which is a line passing through the lever abutment point and perpendicular to the line connecting the lever abutment point and the pedal rotation fulcrum when the depression angle is the second depression angle. This makes it possible to reduce variation in the reaction force applied to the pedal lever. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a schematic diagram showing an accelerator device according to a first embodiment. [Figure 2] 3 is a schematic diagram illustrating a reaction force application region in the accelerator device according to the first embodiment. FIG. [Figure 3] FIG. 3 is an explanatory diagram illustrating the relationship between the pedal opening degree and the cos value according to the first embodiment. [Figure 4] 4 is a schematic diagram showing a case where the rotation axis of the actuator lever according to the first embodiment is on the bisector of the reaction force application area. FIG. [Figure 5] FIG. 6 is a schematic diagram showing an accelerator device according to a second embodiment. [Figure 6] FIG. 10 is a schematic diagram showing an actuator according to a second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0011] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An accelerator device according to the present invention will now be described with reference to the accompanying drawings. In a plurality of embodiments, substantially identical components are designated by the same reference numerals, and the description thereof will be omitted.

[0012] (First embodiment) The first embodiment is shown in Figures 1 to 3. As shown in Figure 1, the accelerator device 1 includes a pedal lever 20 and an actuator 30. The pedal lever 20 has a pad 21, an arm 23, a pedal 25, and the like, and is driven as a unit by the driver's depression operation, etc.

[0013] The pad 21 is provided so that it can be depressed by the driver. The pad 21 is rotatably supported by a fulcrum member 22 provided on the housing H, and is operated within a range between a fully closed line Lc and a fully open line Lf (see FIG. 2). FIG. 1 shows a so-called floor-standing type (organ type) in which the pad 21 is provided extending in a direction along one surface of the housing H, but it may also be a hanging type (pendant type). In this embodiment, the parts of the housing that are not driven by driving the motor 31 or by depressing the pedal lever 20, such as the pedal housing and motor housing, are collectively referred to as the "housing H."

[0014] The arm 23 connects the pad 21 and the pedal 25. One end of the pedal 25 is rotatably supported on the housing H by a fulcrum member 26, and the other end is connected to the arm 23. As a result, when the driver operates the pad 21, the pad 21, the arm 23, and the pedal 25 are driven integrally. A pedal opening sensor 29 that detects the pedal opening θp is provided on one end of the pedal 25. The pedal biasing member 27 is a compression coil spring, one end of which is fixed to the pedal 25 and the other end of which is fixed to the housing H, and biases the pedal 25 in the accelerator closing direction.

[0015] The actuator 30 has a motor 31, which is a drive source, and a power transmission mechanism 40. The motor 31 is, for example, a brushed DC motor. The drive force of the motor 31 is transmitted to the pedal lever 20 via the power transmission mechanism 40. In other words, by driving the motor 31, a reaction force, which is a force in the opposite direction to the pedal depression direction, can be applied to the pedal lever 20 via the power transmission mechanism 40. Here, the actuator 30 can be considered as a series of components that transmit power from the motor 31 to the pedal lever 20 via the power transmission mechanism 40.

[0016] The power transmission mechanism 40 includes a gear set 41, an actuator lever 45, and an actuator lever biasing member 47. The gear set 41 is made up of a motor gear that rotates integrally with the motor shaft and multiple gears that mesh with the motor gear, and transmits the driving force of the motor 31 to the actuator lever 45. An actuator sensor 49 that detects the rotation position is provided on one of the gears that make up the gear set 41.

[0017] One end of the actuator lever 45 is connected to the gear set 41, and the other end abuts against the pedal lever 20. The point of contact between the actuator lever 45 and the pedal lever 20 is referred to as a lever abutment point PA. This allows the driving force of the motor 31 to be transmitted to the pedal lever 20 via the power transmission mechanism 40. In FIG. 1, the other end of the actuator lever 45 abuts against the pad 21, but it may also be configured to abut against the arm 23 or the pedal 25. The abutment surface of the actuator lever 45 with the pad 21 is formed, for example, in a spherical shape.

[0018] The actuator lever biasing member 47 is a compression coil spring that biases the actuator lever 45 in a reaction force application direction. The spring force of the actuator lever biasing member 47 is set so that the actuator lever 45 always abuts against the pedal lever 20. In Figure 1 etc., the operation of the motor 31 and the power transmission mechanism 40 is indicated by dashed arrows.

[0019] The actuator controller 50 includes a drive circuit 51 and a control unit 60. The drive circuit 51 is configured, for example, by an H-bridge circuit, and switches the power supply to the motor 31. The control unit 60 is mainly configured with a microcomputer or the like, and internally includes a CPU, ROM, RAM, I / O, and bus lines connecting these components, none of which are shown. Each process in the control unit 60 may be software processing in which the CPU executes a program stored in advance in a physical memory device (i.e., a readable non-transitory tangible recording medium) such as ROM, or may be hardware processing using a dedicated electronic circuit.

[0020] The control unit 60 calculates a target torque based on the actuator angle θa, which is based on the detection value of the actuator sensor 49, or the pedal opening θp, which is based on the detection value of the pedal opening sensor 29, and controls the drive circuit 51 with a duty cycle corresponding to the target torque. The actuator angle θa and the pedal opening θp can be converted using the gear ratio, lever length ratio, etc., so either value may be used for the calculation. While FIG. 1 shows the pedal opening θp being obtained directly from the pedal opening sensor 29, it may also be obtained from a higher-level ECU via CAN communication, etc.

[0021] Here, assuming that the representative point where the driver's foot contacts is the reaction force off point Poff, the reaction force Foff applied to the reaction force off point Poff when the pedal lever 20 is in the fully closed state is expressed by equation (1). In the equation, Tact is the motor torque, which is the actuator driving force, Rlev is the lever contact distance, which is the distance between the rotation center of the actuator lever 45 and the lever contact point PA, Rc is the pedal contact distance, which is the distance between the rotation center of the pad 21 and the lever contact point PA, and Roff is the distance between the rotation center of the pad 21 and the reaction force off point Poff. Furthermore, the contact angle α1 is a relative angle, which is the angle between the direction in which the reaction force is applied from the actuator lever 45 and the direction in which the reaction force is output to the pad 21. Specifically, the contact angle α1 is the angle between a normal line Na to a line connecting the rotation center of the actuator lever 45 and the lever contact point PA, and a normal line Np, which connects the rotation center of the pad 21 and the lever contact point PA. For simplicity, Equation (1) is calculated geometrically and does not take into account the inclination of the contact point, etc. The same applies to the following equations.

[0022] Foff=Tact / Rlev×cosα1×Rc / Roff (1)

[0023] 2, when the pedal lever 20 is depressed, the position of the lever abutment point PA shifts, and the pedal abutment distance Rc differs from that in the fully closed state. Microscopically, depression of the pedal lever 20 also shifts the abutment point on the actuator lever 45 side, and the lever abutment distance Rlev also differs from that in the fully closed state. Therefore, when a constant motor torque Tact is output, the reaction force Foff applied to the reaction force off point Poff changes depending on the pedal opening θp.

[0024] When the pedal opening θp is at a certain opening θx, the pedal contact distance is Rc_x, the lever contact distance is Rlev_x, and the relative angle is α_x, then the reaction force Foff applied at the reaction force off point Poff is expressed by equation (2).

[0025] Foff=Tact / Rlev_x×cosα_x×Rc_x / Roff ···(2)

[0026] Figure 3 shows the cosine value of the contact angle α1 according to the position of the rotation axis 451 of the actuator lever 45. Note that the cosine value changes depending on the lever contact distance Rlev, so the value shown here is just an example. In Figure 3, the horizontal axis represents the pedal opening θp, and the vertical axis represents the cosine value of the contact angle α1. When the pedal opening θp is fully closed, θp = 0, and when it is fully open, θp = θf.

[0027] For example, "Lc" indicates the cos α value corresponding to the pedal opening degree when the rotation axis 451 is located on the fully closed line Lc, and each line indicates the cos value of the contact angle α1 when the rotation axis 451 is located on the fully open line Lf, the (3 / 4)θf line, the (1 / 2)θf line, the (1 / 4)θf line, the fully closed line Lc, or the -(1 / 4)θf line. Note that the -(1 / 4)θf line means that the rotation axis 451 is located outside the fully closed side of the drive range of the pedal lever 20.

[0028] 3, the cosine value of the contact angle α1 varies depending on the position of the rotation axis 451. In particular, when the lever contact point PA moves away from the rotation axis 451 due to depression of the pedal lever 20, as in the case where the rotation axis 451 is located on the -(¼)θf line, the deviation in the cosine value becomes large.

[0029] Therefore, in this embodiment, the rotation axis 451 of the actuator lever 45 is positioned so that the variation in the cos value due to the deviation of the contact angle α1 is suppressed in the reaction force application region Dc according to the installation environment of the accelerator device 1.

[0030] 2, the reaction force application region Dc can be arbitrarily set as a region where a reaction force is applied between the fully closed line Lc and the fully open line Lf. If the line connecting the fulcrum member 22 and the lever abutment point PA on the fully closed side of the reaction force application region Dc is defined as a first line L1, and the line connecting the fulcrum member 22 and the lever abutment point PA on the fully open side is defined as a second line L2, in this embodiment, the rotation axis 451 of the actuator lever 45 is located between the first line L1 and the second line L2.

[0031] For example, suppose a reaction force is applied to notify eco-points and notify erroneous depression, and the region from near half-open to fully open is defined as the reaction force application region Dc. In this case, the first straight line L1 is the (1 / 2)θf line, the second straight line L2 is the fully open line Lf, and the rotation axis 451 is located between the (1 / 2)θf line and the fully open line Lf. For example, by locating the rotation axis 451 on the bisector that bisects the angle between the first straight line L1 and the second straight line L2, the cos α value is minimized throughout the reaction force application region Dc.

[0032] Furthermore, for example, the rotation axis 451 may be located at a maximum efficiency position corresponding to the pedal opening θp at which the maximum reaction force is desired to be applied, such as providing maximum output near full open to prevent erroneous depression. In this case, the rotation axis 451 is located on a straight line connecting the fulcrum member 22 and the lever abutment point PA at the pedal opening θp at which the maximum output is desired to be applied.

[0033] When the rotation axis 451 is located on the (1 / 2)θf line, the variation in the cosine value across the entire range from fully closed to fully open of the pedal lever 20 is minimized. Therefore, as shown in Fig. 4, the rotation axis 451 may be located on the bisector Lh (=(1 / 2)θf line) that bisects the angle between the fully closed line Lc and the fully open line Lf. This minimizes the variation in the reaction force across the entire range from fully closed to fully open.

[0034] If the entire range from fully closed to fully open of the pedal lever 20 is considered to be the reaction force application region Dc, then the fully closed line Lc is the first straight line L1, the fully open line Lf is the second straight line L2, and locating the rotation axis 451 on the bisector Lh means locating the rotation axis 451 at a position where the variation in cosine values ​​throughout the entire reaction force application region Dc is minimized. Note that "on the bisector" allows for deviations within the range of design errors such as gear backlash. The same applies to "on a straight line," "perpendicular," etc.

[0035] As described above, the accelerator device 1 includes the pedal lever 20, the motor 31, and the power transmission mechanism 40. The pedal lever 20 operates in response to depression of the pedal lever. The motor 31 generates a driving force when energized. The power transmission mechanism 40 has an actuator lever 45, and when energized, the motor 31 applies a reaction force, which is a force in the opposite direction to the pedal depression direction, to the pedal lever 20 via the actuator lever 45. The actuator lever 45 is rotatable by the driving force of the motor 31, and abuts against the pedal lever 20 at a lever abutment point PA.

[0036] Here, within the range of the pedal lever 20 from fully closed to fully open, the reaction force application region Dc is between a first depression angle and a second depression angle of the pedal lever 20. The first depression angle and the second depression angle can be set arbitrarily between fully closed and fully open. For example, if the reaction force application region Dc is from half open to fully open, the first depression angle is (1 / 2)θf and the second depression angle is θf. Furthermore, if the reaction force application region Dc is the entire range from fully closed to fully open of the pedal lever 20, the first depression angle is 0 and the second depression angle is θf.

[0037] The pedal rotation fulcrum is the rotation center of the member that contacts the actuator lever 45. In this embodiment, the member that contacts the actuator lever 45 is the pad 21, and the pedal rotation fulcrum is the fulcrum member 22.

[0038] The rotation axis 451 of the actuator lever 45 is located between a first line L1, which is a line connecting the lever abutment point PA and the fulcrum member 22 when the pedal opening θp is a first depression angle, and a second line L2, which is a line connecting the lever abutment point PA and the fulcrum member 22 when the pedal opening θp is a second depression angle. This reduces the variation in the cos value in the reaction force application region Dc, making it possible to reduce the variation in the reaction force applied to the pedal lever 20 depending on the pedal opening θp.

[0039] The rotation axis 451 of the actuator lever 45 is located on the bisector L3 that bisects the angle between the first line L1 and the second line L2. This minimizes the variation in the cosine value in the reaction force application region Dc, thereby minimizing the variation in the reaction force due to the pedal opening angle θp throughout the reaction force application region Dc.

[0040] (Second embodiment) The second embodiment is shown in Figures 5 and 6. Note that the actuator controller 50 and other components are omitted from Figure 5. As shown in Figure 5, the accelerator device 2 includes a pedal lever 70 and an actuator 80. The pedal lever 70 has a pad 21, an arm 23, a pedal 71, and other components, and is driven as a unit by the driver's depression operation, etc.

[0041] The pedal 71 has a shaft 72, an arm connection portion 73, and an actuator abutment portion 74. The shaft 72 is rotatably supported on the housing H at an axis 721. The arm connection portion 73 protrudes radially outward from the shaft 72 and is connected to the end of the arm 23 opposite the pad 21. As a result, when the driver operates the pad 21, the pad 21, the arm 23, and the pedal 71 are driven integrally. The actuator abutment portion 74 protrudes radially outward from a position different from the arm connection portion 73 of the shaft 72 and abuts against an actuator lever 85.

[0042] The pedal biasing member 77 is a compression coil spring, one end of which is fixed to the arm connecting portion 73 and the other end of which is fixed to the housing H, and which biases the pedal 71 in the accelerator closing direction.

[0043] 5 and 6, the actuator 80 includes a coil 81 as a drive source, a power transmission mechanism 83, etc. The power transmission mechanism 83 includes a drive unit 84 and an actuator lever 85. The drive unit 84 moves linearly when the coil 81 is energized.

[0044] One end of the actuator lever 85 is connected to the drive unit 84, and the other end abuts against the pedal lever 70. More specifically, the other end of the actuator lever 85 abuts against the actuator abutment portion 74 of the pedal 71. Hereinafter, the abutment point between the actuator lever 85 and the actuator abutment portion 74 is referred to as a lever abutment point PB. When current is applied to the coil 81, the actuator lever 85 is linearly moved on a linear axis 851 by the drive unit 84.

[0045] In this embodiment, as shown by the arrow Y1 in Figure 5, when the coil 81 is energized, the drive unit 84 moves linearly, and the actuator lever 85 presses the pedal 71 in the direction opposite to the depression direction of the pedal lever 20. This makes it possible to apply a reaction force to the pedal lever 20.

[0046] In this embodiment, the reaction force Foff applied at the reaction force-off point Poff is expressed by equation (3). In the equation, Fact is the driving force output from the actuator lever 85, and α2 is the contact angle between the actuator lever 85 and the pedal 71. Specifically, the contact angle α2 is the angle between a normal line passing through the lever contact point PB on a line connecting the axis 721, which is the rotation center of the pedal 71, and the lever contact point PB, and a linear axis 851 of the actuator lever 85. Hereinafter, the normal line passing through the lever contact point PB on a line connecting the axis 721 and the lever contact point PB will be referred to as the "lever contact normal line."

[0047] Furthermore, angle β is the angle between the arm 23 and the normal to the axis of the arm connection part 73, and angle γ is the angle between an imaginary line extending the arm 23 to the pad 21 side and the normal to the pad 21. The imaginary line extending the arm 23 to the pad 21 side can also be considered as the direction in which a reaction force is applied to the pad 21. Furthermore, in the formula, Ra is the distance between the axis 721 of the pedal 71 and the lever abutment point PB, and Rb is the distance between the axis 721 and the connection point between the arm connection part 73 and the arm 23.

[0048] Foff=Fact×cosα2×cosβ×cosγ ×(Ra / Rb)×(Rc / Roff) ···(3)

[0049] As shown in equation (3), when a constant driving force Fact is output, the reaction force Foff applied at the reaction force off point Poff varies depending on the cosine value of the contact angle α2. Since the contact angle α2 is a value that varies depending on the pedal opening degree θp, it can also be said that the reaction force Foff applied at the reaction force off point Poff varies depending on the pedal opening degree θp.

[0050] If the lever abutment normal when the pedal lever 70 is fully closed is interpreted as the full closure line, the lever abutment normal when the pedal lever 70 is fully open is interpreted as the full closure line, and each legend is interpreted as the lever abutment normal according to the pedal opening θp, the relationship between the pedal opening θp and the cosine value of the abutment angle α2 will be the same as that shown in Fig. 3. For example, if the linear axis 851 of the actuator lever 85 is disposed on the bisector of the angle formed by the lever abutment normal when fully closed and the lever abutment normal when fully closed, the cosine value of the abutment angle α2 will be as shown by the solid line indicated by (1 / 2)θf.

[0051] In this embodiment, the linear axis 851 of the actuator lever 85 is positioned so as to suppress variations in the cos value due to deviations in the abutment angle α2 in the reaction force application region Dc that corresponds to the installation environment of the accelerator device 2. In Fig. 5, the lever abutment normal corresponding to the fully closed end of the reaction force application region Dc is set to L11, and the lever abutment normal corresponding to the fully open end is set to L12, and the actuator lever 85 is positioned so that the linear axis 851 of the actuator lever 85 is between the lever abutment normals L11 and L12.

[0052] Furthermore, if the actuator lever 85 is disposed on the bisector L13 of the angle formed by the lever abutment normals L11 and L12, the variation in the cosine value across the entire reaction force application region Dc will be minimized. Therefore, the axis of the actuator lever 85 may be disposed on the bisector L13. This minimizes the variation in the reaction force across the entire reaction force application region Dc. Furthermore, the actuator lever 85 may be disposed so that the linear axis 851 is on the lever abutment normal at the pedal opening angle θp at which the maximum output is desired to be applied.

[0053] Furthermore, the entire range of the pedal lever 20 from fully closed to fully open may be regarded as the reaction force application range Dc, and the actuator lever 85 may be positioned so that the linear axis 851 is on the bisector of the angle between the lever abutment normal at the fully closed position and the lever abutment normal at the fully open position. This minimizes the variation in reaction force across the entire range of the pedal lever 20 from fully closed to fully open.

[0054] The accelerator device 2 of this embodiment includes a pedal lever 70, a coil 81, and a power transmission mechanism 83. The pedal lever 70 operates in response to depression of the pedal. The coil 81 generates a driving force when energized. The power transmission mechanism 83 has an actuator lever 85, and when current is applied to the coil 81, a reaction force, which is a force in the opposite direction to the pedal depression direction, is applied to the pedal lever 70 via the actuator lever 85. The actuator lever 85 is linearly movable by the driving force generated by energization of the coil 81, and abuts against the pedal lever 70 at a lever abutment point PB. In this embodiment, the member that abuts against the actuator lever 85 is the pedal 71, and the pedal rotation fulcrum is the axis 721 of the shaft portion 72.

[0055] The linear axis 851 of the actuator lever 85 is located between a lever abutment normal L11, which is a line passing through the lever abutment point PB and perpendicular to the line connecting the lever abutment point PB and the axis 721 when the pedal opening θp is the first depression angle, and a lever abutment normal L12, which is a line passing through the lever abutment point PB and perpendicular to the line connecting the lever abutment point PB and the axis 721 when the pedal opening θp is the second depression angle. This reduces the variation in the cos value in the reaction force application region Dc, making it possible to reduce the variation in the reaction force applied to the pedal lever 70 depending on the pedal opening θp.

[0056] The linear axis 851 of the actuator lever 85 is located on a bisector L13 that bisects the angle between the lever contact normal line L11 and the lever contact normal line L12. This minimizes the variation in the cosine value in the reaction force application region Dc, thereby minimizing the variation in the reaction force due to the pedal opening angle θp throughout the reaction force application region Dc.

[0057] In the embodiment, the motor 31 or the coil 81 corresponds to the "drive source," and the pedal opening angle θp corresponds to the "depression angle." In the second embodiment, the lever abutment normal line L11 corresponds to the "first straight line," and the lever abutment normal line L12 corresponds to the "second straight line."

[0058] (Other embodiments) In the first embodiment, the drive source is a brushed DC motor. In other embodiments, a motor other than a brushed DC motor or something other than a motor may be used as the drive source. Furthermore, when the actuator lever is moved linearly as in the second embodiment, a solenoid may be used. Furthermore, the configuration of the power transmission mechanism, the arrangement of parts, etc. may differ from those of the above embodiments.

[0059] As described above, the present invention is not limited to the above-described embodiment, and can be embodied in various forms without departing from the spirit of the invention. [Explanation of symbols]

[0060] 1, 2...Accelerator device 20, 70... Pedal lever 22, 721....Pivot point 31, 81... Drive source 40, 83... Power transmission mechanism 45, 85... Actuator lever 451 Rotation axis 851···Linear axis

Claims

1. a pedal lever (20) that operates in response to a pedal operation; a drive source (31) that generates a drive force by energizing; a power transmission mechanism (40) having an actuator lever (45) that is rotatable by the driving force of the driving source and abuts against the pedal lever at a lever abutment point, and that applies a reaction force, which is a force in a direction opposite to the pedal depression direction, to the pedal lever via the actuator lever when current is applied to the driving source; Equipped with Within the range from the fully closed position to the fully open position of the pedal lever, a reaction force application region is defined as a region between a first depression angle and a second depression angle of the pedal lever, and the center of rotation of a member (21) that abuts against the actuator lever is defined as a pedal rotation fulcrum (22). an accelerator device in which the rotation axis (451) of the actuator lever is located between a first line which is a line connecting the lever abutment point and the pedal rotation fulcrum when the depression angle is the first depression angle, and a second line which is a line connecting the lever abutment point and the pedal rotation fulcrum when the depression angle is the second depression angle.

2. 2. The accelerator device according to claim 1, wherein the rotation axis is located on a bisector that bisects an angle formed by the first straight line and the second straight line.

3. a pedal lever (70) that operates in response to a pedal depression operation; a drive source (81) that generates a drive force by energizing; a power transmission mechanism (83) that has an actuator lever (85) that is linearly movable by the driving force of the driving source and abuts against the pedal lever at a lever abutment point, and that applies a reaction force, which is a force in a direction opposite to the pedal depression direction, to the pedal lever via the actuator lever when current is applied to the driving source; Equipped with Within the range from the fully closed position to the fully open position of the pedal lever, a region between a first depression angle and a second depression angle of the pedal lever is defined as a reaction force application region, and the center of rotation of the member (71) that abuts against the actuator lever is defined as a pedal rotation fulcrum (721), an accelerator device in which a linear axis (851) of the actuator lever is located between a first line which is a line passing through the lever abutment point and perpendicular to a line connecting the lever abutment point and the pedal rotation fulcrum when the depression angle is the first depression angle, and a second line which is a line passing through the lever abutment point and perpendicular to a line connecting the lever abutment point and the pedal rotation fulcrum when the depression angle is the second depression angle.

4. 4. The accelerator device according to claim 3, wherein the linear axis is located on a bisector that bisects an angle formed by the first straight line and the second straight line.

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