CN110549999B - Accelerator pedal system for vehicle - Google Patents
Accelerator pedal system for vehicle Download PDFInfo
- Publication number
- CN110549999B CN110549999B CN201810537822.1A CN201810537822A CN110549999B CN 110549999 B CN110549999 B CN 110549999B CN 201810537822 A CN201810537822 A CN 201810537822A CN 110549999 B CN110549999 B CN 110549999B
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- unit
- accelerator pedal
- friction
- reset
- connecting piece
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/04—Brake-action initiating means for personal initiation foot actuated
- B60T7/06—Disposition of pedal
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- Transportation (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
Abstract
The invention provides an accelerator pedal system for a vehicle, which mainly comprises: the accelerator pedal comprises an accelerator pedal body, a connecting piece, a friction unit, a sensing unit, a first reset unit and a second reset unit. According to the invention, the friction unit and the sensor unit in the accelerator pedal system are separated into two independent structures which are respectively controlled by the independent reset units, and the friction unit and the accelerator pedal can be detachably connected, so that when the friction unit is blocked, the friction unit can be separated from the connecting piece under the action of restoring force provided by the sensor unit, and the accelerator pedal can be restored to the original position under the action of restoring force of the sensor unit. The potential safety hazard caused by friction retardation is avoided.
Description
Technical Field
The invention relates to the technical field of parts for vehicles, in particular to an accelerator pedal system for a vehicle.
Background content
With the increase of the social and economic level, the demand of people on life is continuously increased. Nowadays, vehicles have become essential vehicles for people to go out. An accelerator pedal is used as a device for controlling the fuel supply amount of an internal combustion engine, and a driver controls the air intake amount of the engine by controlling the stepping amount of the accelerator pedal during the running of the vehicle, thereby controlling the rotation speed of the engine. In order to accurately feed back the stepping amount of an accelerator pedal of a driver to a vehicle control system, in the current accelerator pedal system, a position sensor is arranged in the accelerator pedal system, the stepping amount of the driver can be known by detecting the position of the accelerator pedal, meanwhile, a friction structure is arranged on the structure provided with the position sensor, and the stepping force of the driver is resisted by the friction force generated by the friction structure, so that the stepping force of the driver can be controlled, and the position of the accelerator pedal can be accurately detected by the sensor.
However, in the prior art, the position sensor and the friction structure are integrated in one control structure and connected to the accelerator pedal body structure, so that when the friction structure is blocked and the external force is reduced or cancelled, the friction structure cannot recover the original position, the accelerator pedal body structure cannot generate the position change corresponding to the external force, the position sensor cannot feed back the accurate position information of the accelerator pedal body structure to the vehicle control system, the vehicle control system cannot accurately regulate the oil amount, and the safety problem is caused. Thus, the above design of the accelerator pedal system in the prior art still has the potential safety hazard problem.
Disclosure of Invention
To solve the above problems, the present invention proposes an accelerator pedal system for a vehicle. According to the invention, the friction unit and the sensor unit in the accelerator pedal system are separated into two independent structures which are respectively controlled by the independent reset units, and the friction unit and the accelerator pedal can be detachably connected, so that when the friction unit is blocked, the friction unit can be automatically separated from the connecting piece, and the accelerator pedal can be restored to the original position under the action of the restoring force of the sensor unit. The potential safety hazard caused by friction retardation is avoided.
Specifically, the invention provides an accelerator pedal system for a vehicle, comprising an accelerator pedal body; the first end of the connecting piece is connected with the accelerator pedal body; the accelerator pedal body is fixedly connected with the connecting piece, and the accelerator pedal body is fixedly connected with the vehicle body through a first reset unit; the second resetting unit is fixedly connected between the sensor unit and the vehicle body, and a second fixed end of the sensor unit pushes the accelerator pedal body to move between the first position and the second position under the action of the second resetting unit; when the accelerator pedal body is located at any position between the first position and the second position and the first resetting unit is blocked, the movable end of the friction unit is separated from the second end of the connecting piece.
Preferably, the movable end of the friction unit is connected with the second end of the connecting piece through a clamping hook.
Preferably, the expansion end of friction unit includes a trip structure, the second end of connecting piece has a limit structure, the trip structure includes an accommodation portion that has an open-ended, limit structure hold in the accommodation portion, the expansion end of friction unit with the second end of connecting piece is connected, open-ended width is greater than limit structure's width, the accommodation portion is right limit structure's clamping-force is less than the accelerator pedal body is located arbitrary position between first position and the second position, the restoring force that the second reset unit produced.
Preferably, the sensor unit includes a rotor therein, the rotor rotates along with the movement of the sensor unit, and the sensor unit acquires and feeds back the rotation position of the rotor to the outside.
Preferably, the friction unit further includes a first receiving structure, the first receiving structure is located between the fixed end and the movable end of the friction unit, a first reset end of the first reset unit is fixedly connected to the first receiving structure, and when the accelerator pedal body is located at the second position, the first reset unit is received in the first receiving structure; the sensor unit further comprises a second containing structure, the second containing structure is located between the first fixed end and the second fixed end of the sensor unit, a second reset end of the second reset unit is fixedly connected with the second containing structure, when the accelerator pedal body is located at the second position, the second reset unit is contained in the second containing structure.
Preferably, the height of the first accommodating structure is smaller than the length of the first resetting unit under the state of no external force; the height of the second accommodating structure is smaller than the length of the second reset unit under the state of no external force.
Preferably, the first and second return units are springs.
Compared with the prior art, the invention has the advantages that:
1) the friction unit and the sensor unit in the accelerator pedal system are separated into two independent structures which are respectively connected with the independent reset units;
2) according to the invention, the friction unit and the accelerator pedal body can be detachably connected, so that when the friction unit is blocked, the friction unit can be separated from the connecting piece under the action of restoring force provided by the sensor unit, and the accelerator pedal can be restored to the original position under the action of restoring force provided by the sensor unit;
3) the invention can effectively prevent the potential safety hazard problem generated when the friction unit in the accelerator pedal system is blocked, and has excellent market application prospect.
Drawings
FIG. 1 is a state block diagram of an accelerator pedal system for a vehicle in a first position in accordance with a preferred embodiment of the present invention;
FIG. 2 is a block diagram of the accelerator pedal body of the accelerator pedal system of FIG. 1 in a second position;
FIG. 3 is a structural view illustrating a state where a friction unit is disengaged in accordance with the accelerator pedal system of FIG. 1;
fig. 4 is a structural view of a movable end of a friction unit of an accelerator pedal system for a vehicle according to a preferred embodiment of the present invention.
Reference numerals:
1-an accelerator pedal body, wherein,
2-a connecting piece is arranged on the upper surface of the shell,
21-a first end, 22-a second end,
3-a friction unit, wherein the friction unit is arranged on the frame,
31-a fixed end, 32-a movable end, 33-a first containing structure,
4-the sensor unit is provided with a sensor unit,
41-a first fixed end, 42-a second fixed end, 43-a second accommodation result,
5-a first reset unit, which is provided with a reset unit,
6-second reset unit.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The advantages of the invention are explained in detail below with reference to specific embodiments.
The invention aims to solve the problem of potential safety hazard when a friction structure is blocked in the design of integrating the friction structure and a sensor structure in an accelerator pedal system in the prior art. The present invention provides a novel accelerator pedal system, which is a structural diagram of a state of an accelerator pedal system for a vehicle with an accelerator pedal body located at a first position according to a preferred embodiment of the present invention, referring to fig. 1. As can be seen from the figure, in the present embodiment, the proposed accelerator pedal system mainly includes: the accelerator pedal comprises an accelerator pedal body 1, a connecting piece 2, a friction unit 3 and a sensing unit 4.
Wherein, the first end 21 of the connecting piece 2 is movably connected with the accelerator pedal body 1, that is, the connecting piece 2 can rotate around the connecting position of the second end 21 and the accelerator pedal body 1 as the center. Preferably, the second end 21 of the connecting piece 2 can be movably connected with the accelerator pedal body 1 in a pin joint mode; the fixed end 31 of the friction unit 3 is movably connected to the vehicle, that is, the friction unit 3 can rotate around the connecting position of the fixed end 31 and the vehicle, and the movable end 32 of the friction unit 3 can be detachably connected with the second end 21 of the connecting piece 2, that is, when a certain condition is reached, the movable end 32 of the friction unit 3 can be detached from the second end 21 of the connecting piece 2; the sensor unit 4 is movably connected to the vehicle through a first fixed end thereof, that is, the sensor unit 4 can rotate around the movable connection position, and a second fixed end 42 of the sensor unit 4 is movably connected to the second end 21 of the connecting member 2, that is, the sensor unit 4 can also rotate around the movable connection position of the second fixed end 42 and the connecting member 2; meanwhile, in this embodiment, a first resetting unit 5 is fixedly connected between the friction unit 3 and the vehicle, and a second resetting unit 6 is fixedly connected between the sensor unit 4 and the vehicle, the first resetting unit 5 and the second resetting unit 6 can deform when receiving an external force, and provide a restoring force outwards by restoring the deformation after the external force is cancelled, so that the friction unit 3 and the sensor unit 4 can respectively push the accelerator pedal body 1 to move between the first position S1 and the second position S2 in fig. 1 and fig. 2 through the movable end 32 and the second fixed end 42 thereof. When the accelerator pedal is located at the first position S1, the accelerator pedal body is not affected by any external force; and at the second position S2, the first and second reset units are in the maximum deformation state (the maximum deformation is the maximum deformation after the reset units exclude the deformation tolerance and allowance calculation in practical application).
Then, in view of the above design of the present embodiment, in the first position S1, when the driver applies an external force to the accelerator pedal body 1, the external force applied to the accelerator pedal body 1 is transmitted to the sensor unit 4 and the friction unit 3 through the connecting member 2, the friction unit 3 generates a corresponding friction force to resist a part of the external force, so that the friction unit 3 and the sensor unit 4 rotate around the movable connection position with the vehicle under the part of the external force, and the first resetting unit 5 and the second resetting unit 6 deform under the part of the external force. When the external force applied to the accelerator body by the driver is greater than the friction force generated by the friction unit and the maximum deformation force of the first resetting unit 5 and the second resetting unit 6, the first resetting unit 5 and the second resetting unit 6 are deformed maximally, and the accelerator pedal body reaches the second position S2. When the external force applied to the accelerator pedal body is reduced or cancelled by the driver, the first and second returning units 5 and 6 are restored to be partially or completely deformed, so that a restoring force is transmitted to the accelerator pedal body through the friction unit 2 and the sensor unit 3 and the connector 2, so that the accelerator pedal body 1 is partially or completely displaced to move to any position between the first position S1 and the second position S2, or to return to the first position S1. In this process, the sensor unit 4 always holds the position of the accelerator pedal body and feeds back the position to the vehicle control system, so that the vehicle control system can judge the refueling intention of the driver according to the position information fed back by the sensor unit 4, and accordingly, the corresponding fuel feeding amount is provided for the engine. However, when the friction unit 3 is blocked in this process, the resistance generated by the friction unit 3 is greater than the restoring force of the first restoring unit 5, and the first restoring unit cannot be deformed and restored, at this time, referring to fig. 3, in this embodiment, the movable end 32 of the friction unit 3 is separated from the connection with the second end 22 of the connecting member 2, so that the accelerator pedal body 1 is restored to the corresponding position under the restoring force provided by the second restoring unit 6, and thus, the sensor unit 3 can still accurately feed back the position of the accelerator pedal body to the vehicle control system, and accurately control the oil supply amount of the engine. Therefore, by means of the design of the embodiment, the potential safety hazard caused by excessive oil supply to the engine due to the fact that the intention of a driver cannot be accurately judged under the condition that the friction unit is blocked can be effectively prevented.
In another preferred embodiment of the present invention, the movable end of the friction unit and the second end of the connecting member are detachably connected by means of a snap connection.
Then, with reference to fig. 4, in a preferred embodiment of a snap connection, the movable end 32 of the friction unit 3 comprises a snap structure 321, and correspondingly, the second end 22 of the connecting element 2 has a limit structure 221, preferably, the limit structure 221 may be a protrusion protruding from the second end 22 of the connecting element 2, and the diameter of the portion of the protrusion near the second end 22 is smaller than that of the portion of the protrusion far from the second end 22; the hooking structure 321 of the movable end 32 includes a receiving portion (not shown) with an opening, so that the position-limiting structure 221 can be received in the receiving portion, preferably, the small diameter portion of the position-limiting structure 221 is received in the receiving portion and clamped by the receiving portion, and the large diameter portion performs a position-limiting function, so that the movable end 32 of the friction unit is connected with the second end 22 of the connecting member. Meanwhile, in this embodiment, the width of the opening of the accommodating portion is smaller than the width of the limiting structure 221, and the clamping force of the accommodating portion to the limiting structure 221 is smaller than the position of the accelerator pedal body 1 between the first position S1 and the second position S2, and the restoring force generated by the second resetting unit 6. Therefore, the accelerator pedal body 1 can be accurately moved between the second position S2 and the first position S1 only by the restoring force provided by the second restoring unit 6, and the sensor unit 4 can feed back accurate position information to the vehicle control system. Therefore, the potential safety hazard caused by excessive oil supply to the engine due to the fact that the intention of a driver cannot be accurately judged under the condition that the friction unit is blocked is effectively prevented.
In another preferred embodiment of the present invention, the sensor unit 4 includes a rotor (not shown) therein, the rotor can rotate along with the movement of the sensor unit, the sensor unit obtains and feeds back the rotation position of the rotor to the outside, and since the sensor unit always moves synchronously with the accelerator pedal body, the position information of the accelerator pedal body can be accurately fed back, which is equivalent to the feedback of the refueling intention of the driver to the vehicle control system.
Referring to fig. 1 to 3, in another preferred embodiment of the present invention, the friction unit 3 further includes a first receiving structure 33, the first receiving structure 33 is located between the fixed end 31 and the movable end 32 of the friction unit 3, a first reset end (not labeled) of the first reset unit 5 is fixedly connected to the first receiving structure 33, the first receiving structure 33 receives the first reset unit 5, and when the accelerator pedal body 1 is located at the second position S2, the first reset unit 5 is completely received in the first receiving structure 33, and the height of the first reset unit when the deformation of the first reset unit starts is greater than the height of the first receiving structure 33, in which case, the deformation amount of the first reset unit is affected by the height of the first receiving structure;
correspondingly, the sensor unit 4 further includes a second receiving structure 43, the second receiving structure 43 is located between the first fixing end 41 and the second fixing end 42 of the sensor unit 4, the second reset end of the second reset unit 6 is fixedly connected to the second receiving structure, the second receiving structure 43 receives the second reset unit 6, and when the accelerator pedal body 1 is located at the second position S2, the second reset unit 6 is completely received in the second receiving structure 43, and the height of the second reset unit is greater than the height of the second receiving structure 43 when the deformation of the second reset unit 6 begins, in this case, the deformation amount of the second reset unit is affected by the height of the second receiving structure. In view of the above design, can utilize the holding structure to restrict the deformation of the unit that resets, prevent that the unit that resets from taking place the jamming, damage etc. that the incorrect deformation caused.
In a preferred embodiment of the resetting unit, the height of the first accommodating structure 33 is smaller than the length of the first resetting unit 5 in the state of not receiving external force; correspondingly, the height of the second accommodating structure 43 is smaller than the length of the second reset unit 6 when the second reset unit is not subjected to an external force. Therefore, when the accelerator pedal body 1 is located at the second position S2, the first and second reset units are in a deformed state, and when the external force on the accelerator pedal body 1 is reduced or cancelled, the restoring force generated by the first and second reset units sending the deformation restoration will push the accelerator pedal body 1 to move.
In a preferred embodiment of a restoring unit, the first restoring unit 33 and the second restoring unit 43 are springs, and other structures having a spring function.
In summary, the friction unit and the sensor unit in the accelerator pedal system are separated into two independent structures, and the two independent structures are respectively connected with the independent reset unit; according to the invention, the friction unit and the accelerator pedal body can be detachably connected, so that when the friction unit is blocked, the friction unit can be separated from the connecting piece under the action of restoring force provided by the sensor unit, and the accelerator pedal can be restored to the original position under the action of restoring force provided by the sensor unit; the invention can effectively prevent the potential safety hazard problem generated when the friction unit in the accelerator pedal system is blocked, and has excellent market application prospect.
It should be noted that the embodiments of the present invention have been described in terms of preferred embodiments, and not by way of limitation, and that those skilled in the art can make modifications and variations of the embodiments described above without departing from the spirit of the invention.
Claims (7)
1. An accelerator pedal system for a vehicle includes an accelerator pedal body; the first end of the connecting piece is connected with the accelerator pedal body; it is characterized by also comprising the following steps of,
a friction unit and a sensor unit connected to the second end of the connecting piece, wherein the fixed end of the friction unit is movably connected with the vehicle, the movable end of the friction unit is detachably connected with the second end of the connecting piece, the first fixed end of the sensor unit is movably connected with the vehicle, the second fixed end of the sensor unit is movably connected with the second end of the connecting piece,
the first resetting unit is fixedly connected between the friction unit and the vehicle, and under the action of the first resetting unit, the movable end of the friction unit pushes the accelerator pedal body to move between a first position and a second position;
the second resetting unit is fixedly connected between the sensor unit and the vehicle body, and a second fixed end of the sensor unit pushes the accelerator pedal body to move between the first position and the second position under the action of the second resetting unit; when the accelerator pedal body is located at any position between the first position and the second position and the first resetting unit is blocked, the movable end of the friction unit is separated from the second end of the connecting piece.
2. The accelerator pedal system of claim 1,
the movable end of the friction unit is connected with the second end of the connecting piece through a clamping hook.
3. The accelerator pedal system of claim 2,
the expansion end of friction unit includes a trip structure, the second end of connecting piece has a limit structure, the trip structure includes an open-ended portion of holding that has, limit structure hold in the portion of holding, friction unit's expansion end with the second end of connecting piece is connected, open-ended width is greater than limit structure's width, the portion of holding is right limit structure's clamping-force is less than the accelerator pedal body is located primary importance with arbitrary position between the second position, the restoring force that the second reset unit produced.
4. The accelerator pedal system of claim 1,
the sensor unit comprises a rotor, the rotor rotates along with the movement of the sensor unit, and the sensor unit acquires and feeds back the rotation position of the rotor to the outside.
5. The accelerator pedal system of claim 1,
the friction unit further comprises a first accommodating structure, the first accommodating structure is located between the fixed end and the movable end of the friction unit, a first reset end of the first reset unit is fixedly connected with the first accommodating structure, and when the accelerator pedal body is located at the second position, the first reset unit is accommodated in the first accommodating structure;
the sensor unit further comprises a second containing structure, the second containing structure is located between the first fixed end and the second fixed end of the sensor unit, a second reset end of the second reset unit is fixedly connected with the second containing structure, when the accelerator pedal body is located at the second position, the second reset unit is contained in the second containing structure.
6. The accelerator pedal system of claim 5,
the height of the first accommodating structure is smaller than the length of the first reset unit under the state of no external force;
the height of the second accommodating structure is smaller than the length of the second reset unit under the state of no external force.
7. The accelerator pedal system according to any one of claims 1 to 6,
the first reset unit and the second reset unit are springs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810537822.1A CN110549999B (en) | 2018-05-30 | 2018-05-30 | Accelerator pedal system for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810537822.1A CN110549999B (en) | 2018-05-30 | 2018-05-30 | Accelerator pedal system for vehicle |
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| CN110549999A CN110549999A (en) | 2019-12-10 |
| CN110549999B true CN110549999B (en) | 2021-08-27 |
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| CN201810537822.1A Active CN110549999B (en) | 2018-05-30 | 2018-05-30 | Accelerator pedal system for vehicle |
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| CN110549999A (en) | 2019-12-10 |
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