CN109747546B - Pedal device for vehicle and electric pedal control method - Google Patents
Pedal device for vehicle and electric pedal control method Download PDFInfo
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- CN109747546B CN109747546B CN201910135747.0A CN201910135747A CN109747546B CN 109747546 B CN109747546 B CN 109747546B CN 201910135747 A CN201910135747 A CN 201910135747A CN 109747546 B CN109747546 B CN 109747546B
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Abstract
The invention provides a pedal device for a vehicle and an electric pedal control method, and belongs to the field of automobile accessories. The vehicle pedal device comprises an upper channel steel, a lower channel steel, a hydraulic system and an electric pedal assembly, wherein the upper channel steel is connected with a chassis, and the lower channel steel is connected with the upper channel steel through a telescopic cylinder of the hydraulic system; the electric pedal assembly is connected with the lower channel steel. The electric pedal assembly is adjusted to the lowest position, and the telescopic cylinder is filled with pressure oil, so that the chassis can be supported by the telescopic cylinder after the telescopic cylinder is extended. The pedal device for the vehicle not only can be used for treading when the vehicle gets on or off, but also can be used as a jack, so that the vehicle can be maintained in the field conveniently. The control method adopts the vehicle pedal device, and can adjust the descending height of the pedal plate according to the minimum distance between the pedal plate and the ground; and the descending height calculated according to the minimum distance can facilitate getting on and off the vehicle and avoid the pedal plate from colliding with a convex part on the ground.
Description
Technical Field
The invention relates to the field of vehicle accessories, in particular to a pedal device for a vehicle and an electric pedal control method.
Background
Because the ground clearance of the chassis of the cross-country vehicle is larger, namely the height of the chassis is higher, the cross-country vehicle is inconvenient to get on or off, therefore, a pedal device is usually arranged on the cross-country vehicle and is used for pedaling when getting on or off. However, the conventional pedal device can be used only for stepping on and off.
Disclosure of Invention
The invention aims to provide a pedal device for a vehicle, which can be used for stepping on and off and can also be used for supporting the vehicle.
Another object of the present invention is to provide an electric pedal control method using the above pedal device for a vehicle.
The invention is realized by the following steps:
a pedal device for a vehicle, comprising:
the upper channel steel is used for being connected with a vehicle chassis;
a channel steel is arranged; the notch of the lower channel steel and the notch of the upper channel steel are oppositely arranged to form an accommodating space;
the hydraulic system comprises a reversing valve, a telescopic cylinder and a bidirectional hydraulic lock, the telescopic cylinder is arranged in the accommodating space, one end of the telescopic cylinder is connected with the upper channel steel, and the other end of the telescopic cylinder is connected with the lower channel steel;
the reversing valve is communicated with the bidirectional hydraulic lock through a pipeline, and the bidirectional hydraulic lock is communicated with the telescopic cylinder through a pipeline;
the electric pedal assembly is connected with the lower channel steel.
The reversing valve is a three-position four-way electromagnetic reversing valve, and a first electromagnet is arranged on the upper channel steel or the lower channel steel; the controller is electrically connected with the reversing valve and the first electromagnet respectively;
the first electromagnet is used for enabling the upper channel steel leg to be abutted to the lower channel steel leg.
The controller adopts the PLC, and the automation degree of the whole device can be improved by adopting the controller.
Further, the electric pedal assembly comprises a driving motor, a pedal plate, a locking device and two four-bar mechanisms;
the four-bar mechanism is a parallelogram mechanism and comprises a fixed bar, a first connecting bar, a second connecting bar and a translation bar, wherein the middle part of the fixed bar is connected with the lower channel steel, the first connecting bar and the second connecting bar are respectively hinged with two ends of the fixed bar, and two ends of the translation bar are respectively hinged with two ends of the first connecting bar and two ends of the second connecting bar;
the two fixed rods are arranged in parallel and are respectively positioned at two ends of the lower channel steel;
the pedal is detachably connected with the two translation rods;
the driving motor is in transmission connection with at least one first connecting rod, and the locking device is used for locking the first connecting rod at a preset position.
The adoption of the parallelogram mechanism can ensure that the pedal is horizontal when being adjusted to any height; therefore, the preset height of the pedal can be adjusted according to actual needs.
Further, the first connecting rod is hinged with the fixed rod through a rotating shaft; the driving motor is in transmission connection with the rotating shaft through a gear set, and the gear set comprises a driving gear and a driven gear; the driven gear is connected with the rotating shaft key, and the driving gear is meshed with the driven gear and is in transmission connection with the driving motor.
Furthermore, a plurality of positioning holes are formed in the driven gear and are circumferentially distributed around the circle center of the driven gear; one end of the positioning hole comprises a conical hole, and the great circles of the adjacent conical holes are tangent;
the locking device comprises a guide cylinder and a positioning shaft; the guide cylinder is perpendicular to the end face of the driven gear and is fixedly connected with the fixed rod; the positioning shaft is in sliding fit with the guide cylinder and is connected with the fixed rod through an elastic piece;
the elastic force of the elastic piece enables the positioning shaft to be separated from the positioning hole, and a tip end is arranged at one end, close to the driven gear, of the positioning shaft;
the positioning shaft is also provided with a shaft collar, and the shaft collar can limit the extreme position of the positioning shaft moving towards the direction close to the driven gear;
one end of the guide cylinder is provided with an annular second electromagnet, and when the second electromagnet is electrified, the shaft collar can be attracted to enable the positioning shaft to move towards the limit position; when the positioning shaft moves to the limit position, the positioning shaft can be matched with one of the positioning holes.
The safety device comprises two buckling plates, wherein the buckling plates are arc-shaped; the bottom of the buckling plate is hinged through a hinge shaft; the hinge shaft is horizontally arranged and is connected with the fixed rod;
the upper part of the buckling plate is connected with the upper channel steel through an elastic pull rope; when the telescopic cylinder extends, the elastic pull rope is tensioned; the two buckling plates are close to each other and clamp the positioning shaft; and under the clamping state, the side edges of the two buckling plates are abutted against the shaft collar.
Furthermore, the upper parts of the two buckling plates are respectively provided with magnets with the same magnetism.
Furthermore, the upper surface of the pedal plate is provided with a non-slip mat, and the side edge of the pedal plate is provided with a step-shaped first connecting part; the end part of the translation rod is provided with a second connecting part matched with the first connecting part; the first connecting portion and the second connecting portion are detachably connected.
An electric pedal control method using the vehicle pedal device; the method is characterized by comprising the following steps:
a. detecting the distance between the pedal and the ground below the pedal;
b. dividing the detection data by 2 to obtain a reference value, taking the reference value as the preset descending height of the pedal plate in the vertical direction, and setting the gap between the pedal plate and the ground;
c. and driving the pedal to move, and enabling the descending height to be equal to the preset descending height.
Further, the step a also comprises the step of detecting the distances between different positions in the length direction of the pedal plate and the ground to obtain a plurality of initial distances;
and step b, comparing the plurality of initial distances to obtain a maximum value and a minimum value, dividing the maximum value by 2 to be used as a reference value, comparing the reference value with the minimum value, and taking a position corresponding to a smaller numerical value between the reference value and the minimum value as a preset descending height.
The invention has the beneficial effects that:
the pedal device for the vehicle, which is obtained by the design, is used for supporting the chassis of the vehicle so as to facilitate tire replacement or other operations, and the pedal plate of the electric pedal assembly is adjusted to the lowest position; and then starting a hydraulic system to introduce pressure oil into the telescopic cylinder. At the moment, the electric pedal assembly is connected with the lower channel steel, and the upper channel steel is fixedly connected with the chassis, so that the lower channel steel and the electric pedal assembly move downwards relative to the chassis under the action of the telescopic cylinder; until the telescopic cylinder and the electric pedal assembly jointly support the chassis. The pedal device for the vehicle not only can be used for treading when the vehicle gets on or off, but also can be used as a jack, so that the vehicle can be maintained in the field conveniently.
The invention provides an electric pedal control method by the design, which adopts the vehicle pedal device. The descending height of the pedal can be adjusted according to the minimum distance between the pedal and the ground, and the descending height obtained by calculation according to the minimum distance can be convenient for getting on or off the vehicle and can be prevented from colliding with a raised part on the ground.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view of an assembly structure of a footrest apparatus and a vehicle chassis according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an upper channel steel, a lower channel steel and a telescopic cylinder provided in an embodiment of the present invention;
FIG. 3 is a schematic diagram of a hydraulic system provided by an embodiment of the present invention;
FIG. 4 is a schematic view of the footrest assembled with the footrest provided by the embodiment of the present invention;
FIG. 5 is a rear view of the driven gear of the embodiment of the present invention in FIG. 4;
FIG. 6 is a right side view of the embodiment of the present invention providing the driven gear, locking device and safety device in FIG. 1;
FIG. 7 is a right side view of FIG. 6 with two of the fasteners open according to the present invention;
FIG. 8 is a right side view of FIG. 6 with two closure panels in engagement according to embodiments of the present invention;
FIG. 9 is a right side view of FIG. 1 provided with an embodiment of the present invention;
FIG. 10 is a schematic structural view of a support chassis of the footrest apparatus provided by the embodiment of the present invention;
FIG. 11 is a schematic view of an upper channel, a U-shaped connector and a lower channel assembled according to an embodiment of the present invention;
fig. 12 is a schematic structural view of a U-shaped connector provided in an embodiment of the present invention.
Icon: 010-a foot pedal device; 110-upper channel steel; 120-lower channel steel; 130-a hydraulic system; 132-a directional valve; 134-telescoping cylinder; 1341-a first telescoping cylinder; 1342-a second telescoping cylinder; 136-bidirectional hydraulic lock; 140-U-shaped connecting pieces; 141-U-shaped body; 1411-a bottom plate; 1412-side plate; 142-side wing panel; 200-an electric pedal assembly; 210-a drive motor; 220-a foot pedal; 230-a four-bar mechanism; 231-first connecting rod; 232-a second connecting rod; 233-fixing rods; 234-a translation bar; 240-a drive gear; 250-a driven gear; 252-locating holes; 260-locking means; 262-a guide cylinder; 264-positioning the shaft; 2642-collar; 266-a second electromagnet; 270-a safety device; 272-a snap-fit plate; 273-elastic pull rope; 274-a hinge axis; 300-chassis.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the present invention, unless otherwise expressly stated or limited, the first feature may be present on or under the second feature in direct contact with the first and second feature, or may be present in the first and second feature not in direct contact but in contact with another feature between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Example 1:
referring to fig. 1, the present embodiment provides a pedal device 010 for a vehicle, wherein the pedal device 010 is connected to a chassis of the vehicle and can be used for getting on or off the vehicle; in addition, the pedal device 010 for a vehicle can be used as a jack when the bottom of the vehicle needs to be supported (for example, when a tire is replaced). The pedal device 010 of the vehicle includes an upper channel 110, a lower channel 120, a hydraulic system 130 (fig. 3) and an electric pedal assembly 200, wherein the upper channel 110 is connected to the chassis, and the lower channel 120 is connected to the upper channel 110 through a telescopic cylinder 134 of the hydraulic system 130; the electric pedal assembly 200 is connected to the lower channel 120. The electric pedal assembly 200 is adjusted to the lowest position, and the telescopic cylinder 134 is filled with pressure oil, so that the chassis can be supported by extending the telescopic cylinder.
Referring to fig. 1 and 2, in particular, the lengths of the upper channel steel 110 and the lower channel steel 120 are substantially equal to the length of the vehicle pedal 220 in the prior art; wherein go up channel-section steel 110 and chassis fixed connection for its notch is downward, and the notch of lower channel-section steel 120 is up, and forms accommodation space relatively with the notch of last channel-section steel 110. The upper channel steel 110 and the lower channel steel 120 extend along the length direction of the chassis and are detachably connected. Specifically, the upper channel steel 110 is provided with a first electromagnet, and when the first electromagnet is electrified, the first electromagnet can attract the lower channel steel 120, so that the upper channel steel 110 is connected with the lower channel steel 120; when the first electromagnet is powered off, it loses magnetism.
Referring to fig. 3, the hydraulic system 130 includes a directional valve 132, a telescopic cylinder 134, a bidirectional hydraulic lock 136, a hydraulic station, and other necessary hydraulic components, and a pipeline for connecting the components. The directional valve 132 is a three-position four-way electromagnetic directional valve 132, which includes three working positions, and when the directional valve is located at the left position (referring to the drawing), the hydraulic station supplies oil to the rod-free cavity of the telescopic cylinder 134, so that the telescopic cylinder 134 extends; when in the right position, the telescoping cylinder 134 shortens; when in the neutral position, the oil supply is stopped. The bi-directional hydraulic lock 136 is mainly used to lock the telescopic cylinder 134 and prevent the telescopic cylinder from moving under the action of external force.
Referring to fig. 2, the telescopic cylinder 134 is disposed in the accommodating space between the upper channel bar 110 and the lower channel bar 120, and is vertically disposed, one end of the telescopic cylinder is hinged to the upper channel bar 110, and the other end of the telescopic cylinder is hinged to the lower channel bar 120. In addition, in order to balance the stress, a telescopic cylinder can be respectively arranged at the positions close to the two ends of the upper channel steel in the accommodating space.
In addition, the telescopic cylinder 134 is in a contracted state when the vehicle is normally running. When the off-road vehicle runs on a mountain road or a muddy road, the off-road vehicle has more dust; in order to prevent dust from entering the telescopic cylinder 134 through the piston rod, the service life of the telescopic cylinder 134 is reduced; the accommodating space between the upper channel steel 110 and the lower channel steel 120 should be dustproof. In this embodiment, the ends of the upper channel steel 110 and the lower channel steel 120 are provided with the baffle, and the matching surfaces of the upper channel steel 110 and the lower channel steel 120 are provided with rubber pads. Moreover, since the upper channel steel 110 is provided with the first electromagnet, even when the bidirectional hydraulic lock 136 fails to be locked due to oil leakage, the first electromagnet can still prevent a traffic accident caused by the falling of the lower channel steel 120.
Referring to fig. 1 and 4, the electric pedal assembly 200 includes a driving motor 210, a pedal plate 220, a locking device 260 and two four-bar linkages 230, the pedal plate 220 is connected to the chassis through the two four-bar linkages 230, and the driving motor 210 drives the four-bar linkages 230 to move, so that the pedal plate 220 is translated; the locking device 260 is used to lock the position of the four-bar linkage 230 so that the foot pedal 220 is fixed at a preset position.
Specifically, the four-bar mechanism 230 is a parallelogram mechanism including a fixed bar 233, a first connecting bar 231, a second connecting bar 232, and a translation bar 234. The fixing bars 233 are horizontally disposed and arranged perpendicular to the length direction of the vehicle; the middle part of the horizontal moving rod 234 is connected with the lower channel steel 120, the first connecting rod 231 and the second connecting rod 232 are hinged to two ends of the fixed rod 233 respectively, and two ends of the horizontal moving rod 234 are hinged to two ends of the first connecting rod 231 and two ends of the second connecting rod 232 respectively.
The first connecting rods 231 are hinged to the fixing rods 233 through rotating shafts, two ends of each rotating shaft are rotatably connected to the two fixing rods 233 through bearings, and the two first connecting rods 231 are fixedly connected to two ends of each rotating shaft. When the rotating shaft rotates, the two first connecting rods 231 rotate synchronously. The driving motor 210 is in transmission connection with the rotating shaft through a gear set, and the gear set comprises a driving gear 240 and a driven gear 250; the driven gear 250 is in key connection with the rotating shaft, and the driving gear 240 is meshed with the driven gear 250 and is in transmission connection with the driving motor 210. The driving motor 210 adopts a variable frequency motor, thereby facilitating speed control. By adopting the gear set structure, not only can the speed be reduced, but also the whole structure is compact.
Referring to fig. 4, 5 and 6, in order to lock the four-bar linkage 230, the driven gear 250 is provided with a plurality of positioning holes 252, and the plurality of positioning holes 252 are circumferentially distributed around the center of the reference circle of the driven gear 250. And, one end of the positioning hole 252 includes a tapered hole, and the great circles of the adjacent tapered holes are tangent.
The locking device 260 comprises a guide cylinder 262 and a positioning shaft 264; the guide cylinder 262 is disposed perpendicular to the end surface of the driven gear 250. The guide cylinder 262 is fixedly connected to the fixed bar 233 or the lower channel 120 through an intermediate connector.
The positioning shaft 264 is in sliding fit with the guide cylinder 262 and is connected with the fixed rod 233 through an elastic piece; the elastic force of the elastic member separates the positioning shaft 264 from the positioning hole 252 so that the driven gear 250 can freely rotate and the four-bar linkage 230 is in the unlocked state. One end of the positioning shaft 264 close to the driven gear 250 is provided with a tip; when the positioning shaft 264 slides along the guide cylinder 262, the tip end of the positioning shaft 264 can extend into one of the positioning holes 252 of the driven gear 250, and the positioning shaft 264 can restrict the rotation of the driven gear 250 because the guide cylinder 262 is fixedly disposed.
Because the positioning shaft 264 is provided with a tip structure, the positioning hole 252 is provided with a tapered hole structure, and the great circles of the adjacent tapered holes are tangent; and, the output shaft of the driving motor 210 can be rotated by the external force. The design is that when the positioning hole 252 of the driven gear 250 deviates from the positioning shaft 264, the tip end of the positioning shaft 264 still can extend into the tapered hole, and at the moment, torque can be applied to the driven gear 250, so that the driven gear 250 rotates in a small amplitude; and finally, the positioning hole 252 is rotated to a position opposite to the positioning shaft 264, and the positioning shaft 264 can accurately extend into the positioning hole 252. Therefore, the above design can greatly reduce the probability of lock failure.
The positioning shaft 264 is further provided with a collar 2642, the diameter of which is larger than that of the inner hole of the guide cylinder 262, and the limiting position of the positioning shaft 264 which can limit the movement towards the direction close to the driven gear 250 is formed; thereby preventing the positioning shaft 264 from falling off the guide cylinder 262.
In order to drive the positioning shaft 264 to move towards the direction close to the positioning hole 252, one end of the guiding cylinder 262 is provided with an annular second electromagnet 266, and when the second electromagnet 266 is electrified, the collar 2642 can be attracted to enable the positioning shaft 264 to move towards the limit position; when the positioning shaft 264 moves to the extreme position, the positioning shaft 264 can be engaged with one of the positioning holes 252. Thus, the collar 2642 of the positioning shaft 264 is also designed to facilitate the engagement of the positioning shaft 264 by the second electromagnet 266.
The working principle of the locking device 260 is as follows:
to prevent the foot pedal 220 from moving under the force of gravity when the foot pedal 220 moves to the preset position, the second electromagnet 266 needs to be energized. After the power is turned on, the second electromagnet 266 attracts the collar 2642, so that the positioning shaft 264 integrally moves toward the positioning hole 252, and when the collar 2642 abuts against the second electromagnet 266, the positioning shaft 264 just extends into the positioning hole 252. When the locking needs to be released, the second electromagnet 266 is powered off, and the positioning shaft 264 is reset under the action of the elastic piece, so that the locking is released.
When the pedal device 010 is used as a jack, it is only necessary to adjust the first connecting rod 231 and the second connecting rod 232 of the four-bar mechanism to a vertical state, and at this time, the pedal 220 is located at the lowest position; the hydraulic system 130 is then activated.
Referring to fig. 6, 7 and 8, the safety of the footrest device 010 is important when it supports the chassis; to prevent the second electromagnet 266 from being accidentally de-energized and the lock from failing, a safety device 270 is also provided in this embodiment. The safety device 270 includes two fastening plates 272, which are respectively disposed on two sides of the positioning shaft 264, and the fastening plates 272 have arc shapes. The bottom of the fastening plate 272 is hinged through a hinge shaft 274; the hinge shaft 274 is horizontally arranged and parallel to the positioning shaft 264, the hinge shaft 274 is rotatably connected with the bearing seat, and the bearing seat is connected with the fixed rod 233 or the lower channel steel 120.
The upper part of the buckling plate 272 is connected with the upper channel steel 110 through an elastic pull rope 273; when the telescopic cylinder 134 extends, the elastic pull rope 273 is tensioned; two buckling plates 272 are close to each other and clamp the positioning shaft 264; in the clamped state, the lateral sides of the two engagement plates 272 abut against the collar 2642.
Further, magnets with the same magnetism are respectively arranged on the upper parts of the two buckling plates 272; when the telescopic cylinder 134 is reset, the magnet can separate the two buckling plates 272; prevent that snap-fit plate 272 can not reset.
The working principle of the safety device 270 is as follows:
when the telescopic cylinder 134 extends, the lower channel steel 120 and the upper channel steel 110 are far away from each other; at this time, the upper channel steel 110 is fixed to the chassis, and the lower channel steel 120 moves downward with the footrest 010. Since the hinge axis 274 of the snap-together plate 272 is fixedly connected to the lower channel 120, the snap-together plate 272 moves downward, which causes the elastic cord 273 to be tensioned, and the upper portions of the snap-together plates 272 approach each other, thereby clamping the positioning shaft 264. At this time, since the engagement plate 272 abuts against the collar 2642, the engagement plate 272 can prevent the positioning shaft 264 from being restored. Since the elastic cord 273 is necessarily in a tensioned state in the supporting state, the above-described safety device 270 can effectively prevent the locking failure of the locking device 260 in the supporting state.
Further, the pedal device 010 is further provided with a controller, and the controller is electrically connected with the electromagnetic valve, the first electromagnet, the second electromagnet 266 and the driving motor 210, so that the controller can control the electromagnetic valve to be switched, the electromagnet to be powered on or powered off and the driving motor 210 to work. The controller adopts a PLC, and the PLC can be directly purchased. In addition, in other embodiments, no controller may be provided.
Further, the bottom of the pedal plate of the electric pedal assembly is also provided with a plurality of rollers (not shown in the figure); the front edge of the footboard slopes upward. When the vehicle is sunk into a puddle on a muddy bottom surface, the sunk wheels slip, and the vehicle is difficult to drive out of the puddle. After the pedal device is adopted, the electric pedal is put down, and pressure oil is introduced into the telescopic cylinder; the whole frame is supported by a certain height and lifted by the wheels sunk into the mud pit; at this time, the vehicle is driven to run slowly so that the vehicle runs out of the mud pit.
It should be noted that the pedal device 010 can also adopt a prior art electric pedal assembly 200.
Example 2:
referring to fig. 11, another pedaling apparatus is provided in the present embodiment, which is different from the pedaling apparatus of embodiment 1 in that a U-shaped connecting member is further disposed between the upper channel and the lower channel in the present embodiment.
Referring to fig. 12, specifically, the U-shaped connecting member includes a U-shaped body and two side wing plates, the U-shaped body includes two side plates and a bottom plate, which are oppositely disposed, and the two side plates are connected to form a U-shape through the bottom plate. The two side wing plates are vertically connected with the side plates and extend towards two sides of the U-shaped body.
In this embodiment, when U type connecting piece was installed in last channel-section steel and lower channel-section steel, the opening channel-section steel setting up of its U type body. A first telescopic cylinder is arranged between the bottom plate and the upper channel steel, so that the upper channel steel is connected with the bottom plate through the first telescopic cylinder. And a second telescopic cylinder is arranged between the side wing plate and the lower channel steel, so that the side wing plate is connected with the lower channel steel through the second telescopic cylinder.
The working principle of the pedal device provided by the embodiment is as follows:
when the frame needs to be supported, the pedal plate of the electric pedal assembly is adjusted to the lowest position; and pressure oil is introduced into the first telescopic cylinder and the second telescopic cylinder between the upper channel steel and the lower channel steel. At the moment, the first telescopic cylinder enables the U-shaped connecting piece to move towards the direction (namely the lower side) far away from the upper channel steel, and the second telescopic cylinder enables the lower channel steel groove to move towards the direction (namely the lower side) far away from the U-shaped connecting piece. Finally, the downward movement stroke of the lower channel steel relative to the upper channel steel is far larger than the stroke when the first telescopic cylinder or the second telescopic cylinder is used independently.
By adopting the pedal device, the stroke of the lower channel steel can be increased, so that a vehicle with a very high chassis can be effectively supported; and moreover, the structure is compact, the space between the upper channel steel and the lower channel steel is fully utilized, and the original ground clearance of the vehicle cannot be influenced. If a U-shaped connecting piece structure is not adopted, for a vehicle with a very high chassis, in order to effectively support a frame, the number of stages of a telescopic cylinder needs to be increased, so that the outer diameter of a cylinder body of the telescopic cylinder is increased; therefore, the sizes of the upper channel steel and the lower channel steel are correspondingly increased. Due to the increase of the sizes of a plurality of parts, the whole structure is not compact enough, and the lowest position of the pedal is lower than that of the chassis when the electric pedal assembly is folded, namely the effective clearance between the chassis and the ground is reduced.
It should be noted that, in the drawings in the present embodiment, only one first telescopic cylinder is shown, and in other embodiments, a plurality of first telescopic cylinders may be used. In addition, in this disclosure, the terms "upper," "lower," and the like are used with reference to an orientation of the footrest during normal use.
Example 3:
the present embodiment provides an electric pedal control method employing the pedal device 010 of embodiment 1 for controlling the lowering of the pedal 220 to a proper position in the electric pedal device. The method comprises the following steps:
a. detecting the distance between the foot pedal 220 and the corresponding ground below; comprises detecting the distance between different positions of the pedal 220 in the length direction and the ground to obtain a plurality of initial distances;
b. dividing the detection data by 2 to obtain a reference value, taking the reference value as a preset descending height of the pedal plate 220 in the vertical direction, and setting a gap between the pedal plate 220 and the ground; specifically, the plurality of initial distances are compared to obtain a maximum value and a minimum value, the maximum value is divided by 2 to be used as a reference value, the reference value is compared with the minimum value, and a position corresponding to a smaller numerical value between the reference value and the minimum value is used as a preset descending height.
c. The foot pedal 220 is driven to move and the descending height is equal to the preset descending height.
The above control method enables the height of the steps 220 to be suitable for getting on and off the vehicle while avoiding collision of the steps 220 with the ground when the vehicle is running on an uneven mountain.
In addition, the pedal apparatus in embodiment 2 may be adopted as the electric pedal control method.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A pedal device for a vehicle, characterized by comprising:
the upper channel steel is used for being connected with a vehicle chassis;
a channel steel is arranged; the notch of the lower channel steel and the notch of the upper channel steel are oppositely arranged to form an accommodating space;
the hydraulic system comprises a reversing valve, a telescopic cylinder and a bidirectional hydraulic lock, the telescopic cylinder is arranged in the accommodating space, one end of the telescopic cylinder is connected with the upper channel steel, and the other end of the telescopic cylinder is connected with the lower channel steel;
the reversing valve is communicated with the bidirectional hydraulic lock through a pipeline, and the bidirectional hydraulic lock is communicated with the telescopic cylinder through a pipeline;
the electric pedal assembly is connected with the lower channel steel;
the electric pedal assembly comprises a driving motor, a pedal plate, a locking device and two four-bar mechanisms;
the four-bar mechanism is a parallelogram mechanism and comprises a fixed bar, a first connecting bar, a second connecting bar and a translation bar, wherein the middle part of the fixed bar is connected with the lower channel steel, the first connecting bar and the second connecting bar are respectively hinged with two ends of the fixed bar, and two ends of the translation bar are respectively hinged with two ends of the first connecting bar and two ends of the second connecting bar;
the two fixed rods are arranged in parallel and are respectively positioned at two ends of the lower channel steel;
the pedal is detachably connected with the two translation rods;
the driving motor is in transmission connection with one of the first connecting rods, and the locking device is used for locking the first connecting rods at a preset position;
the first connecting rod is hinged with the fixed rod through a rotating shaft; the driving motor is in transmission connection with the rotating shaft through a gear set, and the gear set comprises a driving gear and a driven gear; the driven gear is in key connection with the rotating shaft, and the driving gear is meshed with the driven gear and is in transmission connection with the driving motor;
the driven gear is provided with a plurality of positioning holes which are distributed along the circumference around the circle center of the driven gear; one end of the positioning hole comprises a conical hole, and the great circles of the adjacent conical holes are tangent;
the locking device comprises a guide cylinder and a positioning shaft; the guide cylinder is perpendicular to the end face of the driven gear, and the positioning shaft is in sliding fit with the guide cylinder and is connected with the fixed rod through an elastic piece;
the elastic force of the elastic piece enables the positioning shaft to be separated from the positioning hole, and a tip end is arranged at one end, close to the driven gear, of the positioning shaft;
the positioning shaft is also provided with a shaft collar, and the shaft collar can limit the extreme position of the positioning shaft moving towards the direction close to the driven gear;
one end of the guide cylinder is provided with an annular second electromagnet, and when the second electromagnet is electrified, the shaft collar can be attracted to enable the positioning shaft to move towards the limit position; when the positioning shaft moves to the limit position, the positioning shaft can be matched with one of the positioning holes.
2. The vehicular footrest apparatus according to claim 1, characterized in that:
the hydraulic system also comprises a controller, the reversing valve is a three-position four-way electromagnetic reversing valve, and a first electromagnet is arranged on the upper channel steel or the lower channel steel; the controller is electrically connected with the reversing valve and the first electromagnet respectively;
the first electromagnet is used for enabling the upper channel steel leg to be abutted to the lower channel steel leg.
3. The vehicular footrest apparatus according to claim 1, characterized in that:
the safety device comprises two buckling plates, and the buckling plates are arc-shaped; the bottom of the buckling plate is hinged through a hinge shaft; the hinge shaft is horizontally arranged and is connected with the fixed rod;
the upper part of the buckling plate is connected with the upper channel steel through an elastic pull rope; when the telescopic cylinder extends, the elastic pull rope is tensioned; the two buckling plates are close to each other and clamp the positioning shaft; and under the clamping state, the side edges of the two buckling plates are abutted against the shaft collar.
4. The vehicular footrest apparatus according to claim 1, characterized in that:
a U-shaped connecting piece is further arranged between the upper channel steel and the lower channel steel and comprises a U-shaped body and two side wing plates;
the U-shaped body comprises two side plates and a bottom plate which are oppositely arranged, and the two side plates are connected through the bottom plate to form a U shape; the opening of the U-shaped body faces the upper channel steel; the two side wing plates are vertically connected with the side plates and extend towards the two sides of the U-shaped body;
the telescopic cylinders comprise a first telescopic cylinder and two second telescopic cylinders, one end of the first telescopic cylinder is connected with the upper channel steel, and the other end of the first telescopic cylinder is connected with the bottom plate; one end of the second telescopic cylinder is connected with the side wing plate, and the other end of the second telescopic cylinder is connected with the lower channel steel.
5. The vehicular footrest apparatus according to claim 3, characterized in that:
the upper surface of the pedal is provided with an anti-slip pad, and the side edge of the pedal is provided with a step-shaped first connecting part; the end part of the translation rod is provided with a second connecting part matched with the first connecting part; the first connecting portion and the second connecting portion are detachably connected.
6. An electric pedal control method using the vehicular pedal device according to any one of claims 1 to 5; the method is characterized by comprising the following steps:
a. detecting the distance between the pedal and the ground below the pedal;
b. dividing the detection data by 2 to obtain a reference value, taking the reference value as the preset descending height of the pedal plate in the vertical direction, and setting the gap between the pedal plate and the ground;
c. and driving the pedal to move, and enabling the descending height to be equal to the preset descending height.
7. The electric pedal control method according to claim 6, characterized in that: step a, detecting the distance between different positions in the length direction of the pedal plate and the ground to obtain a plurality of initial distances;
and step b, comparing the plurality of initial distances to obtain a maximum value and a minimum value, dividing the maximum value by 2 to be used as a reference value, comparing the reference value with the minimum value, and taking a position corresponding to a smaller numerical value between the reference value and the minimum value as a preset descending height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910135747.0A CN109747546B (en) | 2019-02-23 | 2019-02-23 | Pedal device for vehicle and electric pedal control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910135747.0A CN109747546B (en) | 2019-02-23 | 2019-02-23 | Pedal device for vehicle and electric pedal control method |
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| CN109747546A CN109747546A (en) | 2019-05-14 |
| CN109747546B true CN109747546B (en) | 2020-06-16 |
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| CN201910135747.0A Active CN109747546B (en) | 2019-02-23 | 2019-02-23 | Pedal device for vehicle and electric pedal control method |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113635837A (en) * | 2020-05-11 | 2021-11-12 | 杭州天铭科技股份有限公司 | Pedal apparatus for vehicle and vehicle |
| CN113635836A (en) * | 2020-05-11 | 2021-11-12 | 杭州天铭科技股份有限公司 | Automobile-used footboard equipment and vehicle |
| WO2023217256A1 (en) * | 2022-05-13 | 2023-11-16 | 刘延兴 | Fully-automatic multipurpose vehicle running board |
| KR102686355B1 (en) * | 2023-08-17 | 2024-07-19 | 임세진 | Height-adjustable vehicle side step |
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| CN203093902U (en) * | 2012-12-31 | 2013-07-31 | 长城汽车股份有限公司 | Vehicle welcome pedal device |
| CN203832459U (en) * | 2014-03-12 | 2014-09-17 | 李郁前 | Vehicle body supporting and boosting mechanism |
| CN106627383A (en) * | 2016-12-09 | 2017-05-10 | 安徽沃杰斯汽车科技有限公司 | Automobile electric pedal |
| CN208439136U (en) * | 2018-05-17 | 2019-01-29 | 杨燕 | A kind of Physical examination car with stretching, extension function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20090308688A1 (en) * | 2008-06-17 | 2009-12-17 | Eliahu Tayar | Foldable step device and method |
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|---|---|---|---|---|
| CN203093902U (en) * | 2012-12-31 | 2013-07-31 | 长城汽车股份有限公司 | Vehicle welcome pedal device |
| CN203832459U (en) * | 2014-03-12 | 2014-09-17 | 李郁前 | Vehicle body supporting and boosting mechanism |
| CN106627383A (en) * | 2016-12-09 | 2017-05-10 | 安徽沃杰斯汽车科技有限公司 | Automobile electric pedal |
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