CN201376505Y

CN201376505Y - Automobile electron accelerator pedal

Info

Publication number: CN201376505Y
Application number: CN200820061063U
Authority: CN
Inventors: 过于成; 王慕昊; 焦兴军; 彭禹
Original assignee: United Automotive Electronic Systems Co Ltd
Current assignee: United Automotive Electronic Systems Co Ltd
Priority date: 2008-12-25
Filing date: 2008-12-25
Publication date: 2010-01-06
Anticipated expiration: 2018-12-25

Abstract

The utility model discloses an automobile electron accelerator pedal. The tail end of a pedal arm is provided with a sluggish force generating mechanism which comprises a base, two friction elements, a spring support and a spring, wherein the two friction elements are arranged at two sides of the base; the spring support is arranged in an opening groove at the upper end of the base; the upper end surface of the spring support is provided with a spring positioning part; the spring is positioned between the a spring positioning part of the spring support and a second spring positioning part on a shell body; the lower end of the spring support is a wedged part with a wider top and a narrower bottom; and two inclined surfaces at the lower end of the wedged part are in contact with the end surfaces of the friction elements. The automobile electron accelerator pedal not only can generate good sluggish force effect, but also has good cost effectiveness.

Description

Electric accelerator pedal for vehicle

Technical field

The utility model relates to the engine system of automobile, particularly relates to a kind of efp that is applicable to various vehicles.

Background technology

Mostly existing traditional Das Gaspedal is to be connected on the fuel sub-system of driving engine by backguy, directly controls valve opening by backguy.Based on the theory of drive-by-wire (drive-by-wire), substituting traditional stay-supported pedal with efp is the development tendency of automotive field from now on.In the acceleration pedal of electronic type completely, the application site sensor reflects accelerator pedal position, and sends position signal to throttle controller.Sensor-based Das Gaspedal is specially adapted to electronic control system, and accelerator pedal position is a variable in the engine controlled variable.

For the friction force between backguy and its protecting sleeve; this driving sensation that the driver generally likes traditional stay-supported pedal to give; so the novel electronic Das Gaspedal should design corresponding mechanism and produce this friction force, make the driver that same driving sensation be arranged.For example people's such as wortmann U.S. Patent No. 6360631 has been announced a pedal gear, and this mechanism is a kind of plunger tpe assembly that can produce lag effect.

But in general, present efp, have plenty of does not have power bradytoia life structure at all, can not fully produce power residual effect fruit, and the driving sensation of traditional mechanical stay-supported pedal can't be provided; Though the strong bradytoia life structure that has, the structure relative complex, parts are many, and cost benefit is poor.Therefore, need now a kind of can provide good power residual effect should, good cost-benefit new design is arranged again.

The utility model content

The technical problems to be solved in the utility model provides a kind of efp, can produce good power residual effect and should possess good cost benefit again.

For solving the problems of the technologies described above, efp of the present utility model comprises: housing, pedal arm, rotating shaft and sensor assembly, described pedal arm is installed on the housing by rotating shaft, and can drive rotating shaft rotates synchronously, described sensor assembly is connected with rotating shaft, and the brush arm that drives sensor assembly during the rotating shaft rotation rotates synchronously;

Wherein: also comprise the power bradytoia life structure of the tail end that is arranged on pedal arm, this power bradytoia life structure comprises that pedestal, two friction elements, springs support and spring;

The pedestal of hollow is positioned at the tail end of pedal arm, respectively opens a friction element support slot in the both sides of pedestal, and friction element is separately positioned in the friction element support slot, and the outer face that exposes is a friction face; The upper surface that is positioned at pedestal is provided with an open slot, and described spring supports and is arranged in the open slot, and the supported by springs upper surface is provided with the spring location, and spring is positioned between second spring location on supported by springs spring location and the housing; The supported by springs lower end is a wedge shape wide at the top and narrow at the bottom, and two inclined-planes of this wedge shape lower end contact with the end face of friction element.

Efp of the present utility model is on the basis of realizing its signal transfer function fully, owing to adopted later-model power bradytoia life structure, thereby reduced the quantity of assembly on the whole, the structure of the life of power bradytoia simultaneously structure is simplified and effectively, therefore, can effectively increase the benefit cost-cutting.

Efp of the present utility model, under the effect of spring, spring supports two friction elements is released laterally along the friction element support slot, is following the motion of pedal arm, produces force of sliding friction between friction element and the housing sidewall, produces power residual effect fruit.Pedal arm is positioned at diverse location, the pressure difference that spring produces, and the suffered outward thrust of friction element is also different, and therefore this power bradytoia becomes mechanism to have adaptation function and power to stagnate and change with the pedal arm position is different.

Efp of the present utility model changes the pedal anglec of rotation by trampling, and then exports different signals, and reflection driver's driving intention is applicable to especially manned vehicle of various vehicles.

Description of drawings

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:

Fig. 1 is efp one example structure figure of the present utility model;

Fig. 2 is the cutaway view of efp shown in Figure 1;

Fig. 3 is the part-structure scheme drawing of power bradytoia life structure in the efp shown in Figure 1;

Fig. 4 is the cutaway view of power bradytoia life structure in the efp shown in Figure 1;

Fig. 5 is rotating shaft and sensor assembly bonded assembly structural representation;

Fig. 6 is sensor assembly and rotating shaft bonded assembly structural representation.

The specific embodiment

Shown in Fig. 1,2, efp of the present utility model comprises that housing 1, pedal arm 5, spring 2, spring support 3, two friction elements 4, rotating shaft 6 and sensor assemblies 7.

The front end of described housing 1 has an opening 16, and left and right sides wall is provided with axis hole 17.The afterbody of pedal arm 5 is provided with a shaft hole 18.Pedal arm 5 is inserted housings 1 from the opening 16 of housing 1, and left and right directions is spacing by housing 1 inwall, rotating shaft 6 is penetrated the axis hole 17 of housing 1 and the shaft hole 18 of pedal arm 5 again, makes pedal arm 5 be installed in the housing 1 and can rotate.Described rotating shaft 6 can be adopted stepped shaft, at this moment can only rotating shaft 6 be inserted from a side opening 16 of housing 1 pedal arm 5 is installed.Via rotating shaft 6 radial locations, pedal arm 5 rotates with the axle center of rotating shaft 6, and drives rotating shaft 6 and rotate synchronously, and the displacement with pedal arm 5 passes to sensor assembly 7 thus, exports corresponding electric signal.

Referring to shown in Figure 2, the upper end side that pedal arm 5 is positioned on the shaft hole 18 has first confined planes 51, and has second confined planes 12 on these first confined planes, 51 corresponding housings 1.Under the state of nature, first confined planes 51 contacts with second confined planes 12, guarantees the idle position of pedal arm 5.

The left side below that pedal arm 5 is positioned at shaft hole 18 has the 3rd confined planes 52, and has the 4th confined planes 13 on the 3rd confined planes 52 corresponding housings 1.When pushes pedals arm 5 made its rotation, the 3rd confined planes 52 on the pedal arm 5 finally contacted with the 4th confined planes 13 of housing 1, and this is the mechanical stop of pedal arm 5.

Pedal arm 5 can rotate at idle position and wide-open throttling position, and its maximum anglec of rotation can regulate by the position that changes the 3rd confined planes 52 on the pedal arm 5, and then changes the rotating distance of pedal arm 5.

Shown in Fig. 3,4, power bradytoia life structure is positioned at the tail end of pedal arm 5 in the utility model, and this power bradytoia life structure comprises that pedestal 53, two friction elements 4, springs support 3 and spring 2.

The pedestal 53 of hollow is positioned at the tail end (being positioned at the right side side of Fig. 1,2 shaft holes 18) of pedal arm 5.Respectively open a friction element support slot 54 in the both sides of pedestal 53.Friction element 4 is that one one side is the column hexahedron on cambered surface or inclined-plane 41, is placed on respectively in the friction element support slot 54.Its cambered surface or inclined-plane 41 be towards the inboard of friction element support slot 54 when friction element 4 was arranged in the friction element support slot 54, and the outer face 42 that exposes (face relative with cambered surface or inclined-plane 41) is friction face.The upper surface that is positioned at pedestal 53 is provided with an open slot 55, and this open slot 55 communicates with friction element support slot 54.Spring supports 3 and is arranged in the open slot 55, and the upper surface of spring support 3 is provided with spring location 31, and spring 2 is positioned between the spring location 31 and second spring location 13 on the housing 1 of spring support 3.

It is that wedge shape wide at the top and narrow at the bottom is (for example shown in Figure 3 that spring supports 3 lower end, this wedge shape lower end has wide vertical both ends of the surface, inwardly be formed slopely two symmetrical inclined-planes in the below along these wide vertical both ends of the surface, stretch the narrow vertical both ends of the surface of formation along this two inclined-plane to the lower edge), two inclined-planes 32 of this wedge lower end contact with the cambered surface or the inclined-plane 41 of friction element 4.

During state of nature,, force friction element 4 outwards to move along the groove 54 of pedestal 53 because the pressure that spring 2 provides makes spring support 3 be in the trend that moves downward.The friction face 42 of friction element 4 contacts with the inwall 11 of housing 1, and is subjected to inwall 11 spacing of housing 1.The pressure of 2 pairs of springs supports 3 of spring is converted into the pressure of the inwall 11 of 4 pairs of housings 1 of friction element with fixing ratio thus.When 4 motions of pedal arm 5 rotating band dynamic friction elements, then 11 of the inwalls of the friction face 42 of friction element 4 and housing 1 produce kinetic force of friction.The position difference of pedal arm 5, spring 2 deformation differences support 3 positive pressure difference to spring, cause the pressure difference of the inwall 11 of 4 pairs of housings 1 of friction element, so the friction force difference.So follow the power residual effect fruit that pedal arm 5 diverse locations change, and friction element 4 can outwards move in the groove 54 of pedestal 53, has certain conciliation function certainly.

Determine at the material of friction element 4 and housing 1, under the spring 2 unmodified prerequisites, can be by changing the effect that degree of dip that spring supports two inclined-planes 32 of 3 wedge shape lower end comes change power to stagnate.In tolerance interval, two inclined-planes 32 are big more with the angle of level, and the power of generation stagnates big more.

Sensor assembly 7 is connected with rotating shaft 6.Referring to shown in Figure 6, a side of described rotating shaft 6 is provided with the coupling end with sensor assembly 7, and this coupling end is a plectrum structure 61.For example this plectrum structure 61 is for having the outward extending round platform in a side end face along rotating shaft 6, extends to form two ears along the bilateral symmetry of this round platform to both sides.Referring to shown in Figure 5, the brush arm of sensor assembly 7 (rotor) coupling end is and described plectrum structure 61 corresponding groove structures 71 that the plectrum structure 61 of rotating shaft 6 is positioned at the groove structure 71 of brush arm again.The brush arm that drives sensor assembly 7 when rotating shaft 6 rotations rotates synchronously, but rotating shaft 6 shake radially is to not influence of brush arm.

Sensor assembly 7 is made up of elements such as brush arm, brush, pcb board and shells.The displacement of pedal arm 5 is delivered to sensor assembly 7 by rotating shaft 6, and brush arm drives the brush motion, causes the variation of electric signal in the sensor assembly 7, the signal that makes 5 displacements of sensor assembly 7 output reflection pedal arms.The signal of sensor assembly 7 outputs is sent to control unit, and then the aperture of control throttle gate.

More than by the specific embodiment the utility model has been done detailed explanation, formation is to restriction of the present utility model but these are not.Those skilled in the art also can make some distortion and improvement under the situation that does not break away from the utility model principle, these also should be considered as protection domain of the present utility model.

Claims

1, a kind of efp, comprise housing, pedal arm, rotating shaft and sensor assembly, described pedal arm is installed on the housing by rotating shaft, and can drive rotating shaft and rotate synchronously, described sensor assembly is connected with rotating shaft, and the brush arm that drives sensor assembly during the rotating shaft rotation rotates synchronously;

It is characterized in that: also comprise the power bradytoia life structure of the tail end that is arranged on pedal arm, this power bradytoia life structure comprises that pedestal, two friction elements, springs support and spring;

2, efp as claimed in claim 1 is characterized in that: described friction element is the hexahedron of column, and it is cambered surface or inclined-plane with the end face that two inclined-planes of spring supports wedge lower end contact.

3, efp as claimed in claim 1 or 2, it is characterized in that: described supported by springs wedge shape lower end is, have wide vertical both ends of the surface and narrow vertical both ends of the surface in the supported by springs lower end, connect by two inclined-planes between wide vertical both ends of the surface and the narrow vertical both ends of the surface.

4, efp as claimed in claim 1 is characterized in that: described rotating shaft is a stepped shaft.

5, efp as claimed in claim 1, it is characterized in that: a side of described rotating shaft is provided with and sensor assembly bonded assembly plectrum structure, sensor assembly is provided with and the corresponding groove structure of described plectrum structure, and the plectrum structure of rotating shaft is positioned at the groove structure of sensor assembly.