CN211809549U - Brake pedal idle stroke adjusting device and car - Google Patents

Abstract

The utility model provides a brake pedal idle stroke adjusting device and car, relate to the automotive technology field, brake pedal idle stroke adjusting device includes the brake frame, the footboard rocking arm, transmission rocking arm and clutch assembly, the transmission rocking arm rotates and sets up on the brake frame, and be used for being connected with arresting gear, the footboard rocking arm rotates and sets up on the brake frame, clutch assembly connects between footboard rocking arm and transmission rocking arm, clutch assembly has first operating position and second operating position, when clutch assembly is in first operating position, the footboard rocking arm has relative transmission rocking arm pivoted first stroke, when clutch assembly is in the second operating position, the footboard rocking arm has the second stroke with the synchronous pivoted of transmission rocking arm. Compared with the prior art, the utility model provides a brake pedal idle stroke adjusting device can realize the recovery of energy, and energy recuperation efficiency is high, need not additionally to set up recovery unit simultaneously, only can realize the recovery of energy, low cost through brake pedal's improvement.

Description

Brake pedal idle stroke adjusting device and car

Technical Field

The utility model relates to the field of automotive technology, particularly, relate to a brake pedal idle stroke adjusting device and car.

Background

In the domestic automobile industry, energy recovery can be carried out during braking, and a parallel energy recovery scheme and a series energy recovery scheme are available at present. In the tandem type energy recovery, in the whole deceleration process of a vehicle from high speed to stop, only feedback braking can be performed for a period of time (namely, the energy in the time is completely used for energy recovery, and no brake friction energy consumption exists), so that the tandem type energy recovery gradually becomes the main stream of the market.

The energy recovery scheme in the prior art is usually to additionally arrange a recovery device, or the improvement difficulty is high, the cost is higher, and the energy recovery rate is lower.

In view of this, it is important to design and manufacture a novel brake pedal idle stroke adjusting device capable of adjusting the brake pedal idle stroke, so that the energy recovery cost is greatly reduced, and the energy recovery rate is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a brake pedal idle stroke adjusting device can adjust brake pedal idle stroke to make the idle stroke stage can carry out the energy recuperation operation, the energy recuperation cost reduces by a wide margin, and energy recovery rate is high.

Another object of the utility model is to provide a car, its energy recuperation cost is little for whole car cost is little, and energy recovery rate is high simultaneously.

The utility model is realized by adopting the following technical scheme.

In one aspect, the utility model provides a brake pedal idle stroke adjusting device, including brake frame, footboard rocking arm, transmission rocking arm and clutch assembly, the transmission rocking arm rotates to set up on the brake frame, and be used for being connected with arresting gear, the footboard rocking arm rotates to set up on the brake frame, clutch assembly connect in the footboard rocking arm with between the transmission rocking arm, clutch assembly has first operating position and second operating position, when clutch assembly is in first operating position, the footboard rocking arm has relatively transmission rocking arm pivoted first stroke, when clutch assembly is in the second operating position, the footboard rocking arm have with the synchronous pivoted second stroke of transmission rocking arm.

Furthermore, the clutch component comprises a first transmission piece, a second transmission piece and a stroke execution piece, the first transmission piece is rotatably arranged on the pedal rocker arm, the second transmission piece is arranged on the transmission rocker arm, the first transmission piece is in transmission connection with the second transmission piece, the stroke execution piece is movably arranged on the brake frame and is provided with a first limiting block and a second limiting block, and the first transmission piece selectively abuts against the first limiting block or the second limiting block so that the pedal rocker arm can rotate the first stroke and/or the second stroke.

Furthermore, a rotating shaft is arranged on the brake frame, a first sleeve is arranged on the pedal rocker arm, and the first sleeve is rotatably sleeved on the rotating shaft so that the pedal rocker arm is rotatably connected with the rotating shaft; the transmission rocker arm is provided with a second sleeve, the second sleeve is rotatably sleeved on the rotating shaft and is arranged at an interval with the first sleeve, so that the transmission rocker arm is rotatably connected with the rotating shaft, and the second transmission piece is arranged on the second sleeve.

Further, still be provided with first bush in the first sleeve, still be provided with the second bush in the second sleeve, still the cover is equipped with the third bush in the pivot, first bush with the second bush is all established on the third bush, so that first sleeve with the second sleeve can rotate independently each other.

Furthermore, a butting lug is arranged on the circumferential side wall of the first transmission piece and used for butting against the first limiting block or the second limiting block.

Further, the second transmission member is a gear, the first transmission member includes a toothed portion and a non-toothed portion which are integrally arranged, the abutting convex block is arranged on the non-toothed portion, and the toothed portion is meshed with the second transmission member.

Furthermore, a simulation spring is further arranged between the pedal rocker arm and the first transmission piece, a first installation piece is arranged on the pedal rocker arm, a second installation piece is arranged on the first transmission piece, two ends of the simulation spring are respectively connected with the first installation piece and the second installation piece, and the simulation spring is used for stretching the first transmission piece when the first transmission piece rotates relative to the pedal rocker arm.

Furthermore, a stroke control assembly is further arranged on the brake frame and comprises a stroke adjuster and a transmission connecting rod, one end of the transmission connecting rod is connected with the stroke adjuster, the other end of the transmission connecting rod is connected with the stroke executing component, and the stroke adjuster drives the stroke executing component to move through the transmission connecting rod so that the first limiting block or the second limiting block abuts against the first transmission component.

Furthermore, the brake pedal idle stroke adjusting device further comprises a stroke sensor, wherein the stroke sensor is arranged on the brake frame and connected with the pedal rocker arm and used for acquiring stroke information of the pedal rocker arm.

In another aspect, the utility model provides an automobile, including brake pedal idle stroke adjusting device, brake pedal idle stroke adjusting device includes brake frame, footboard rocking arm, transmission rocking arm and clutch assembly, the transmission rocking arm rotates to set up on the brake frame for be connected with arresting gear, the footboard rocking arm rotates to set up on the brake frame, clutch assembly connect in the footboard rocking arm with between the transmission rocking arm, clutch assembly has first operating position and second operating position, when clutch assembly is in first operating position, the footboard rocking arm has relatively transmission rocking arm pivoted first stroke, when clutch assembly is in the second operating position, the footboard rocking arm have with the synchronous pivoted second stroke of transmission rocking arm.

The utility model discloses following beneficial effect has:

the utility model provides a pair of brake pedal idle stroke adjusting device, through setting up footboard rocking arm and transmission rocking arm components of a whole that can function independently, and connect through clutch assembly, when clutch assembly is in first operating position, the footboard rocking arm has relative transmission rocking arm pivoted first stroke, when clutch assembly is in second operating position, the footboard rocking arm has the second stroke with the synchronous pivoted of transmission rocking arm, operating position through adjusting clutch assembly, make the footboard rocking arm do not have the transmission of power between first stroke and the transmission rocking arm, the transmission rocking arm does not move, thereby can not trigger arresting gear, hydraulic system does not build the pressure, only there is driving motor at the feedback braking this moment, thereby can realize recovery and the speed reduction of energy. And the pedal rocker arm rotates synchronously with the transmission rocker arm in the second stroke to trigger the braking device, the hydraulic system reduces the pressure, and the basic braking force and the feedback braking force are superposed to realize the deceleration of the vehicle. Compared with the prior art, the utility model provides a brake pedal idle stroke adjusting device through setting up first stroke, can realize the recovery of energy, and arresting gear does not participate in the braking process this moment, and energy recuperation efficiency is high, need not additionally to set up recovery unit simultaneously, only can realize the recovery of energy, low cost through brake pedal's improvement.

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 structural view of a brake pedal idle stroke adjustment device according to a first embodiment of the present invention;

FIG. 2 is a schematic structural diagram of the stroke sensor of FIG. 1;

FIG. 3 is a schematic view of the connection structure of the stroke sensor of FIG. 2;

FIG. 4 is a schematic view of a connection configuration of the clutch assembly of FIG. 1 from a first perspective;

FIG. 5 is a schematic view of the clutch assembly of FIG. 1 shown in a second perspective view;

FIG. 6 is a schematic view of the clutch assembly of FIG. 1 shown in a third perspective view;

FIG. 7 is a schematic structural view of the stroke actuator of FIG. 6 in a first state;

FIG. 8 is a schematic structural view of the stroke actuator of FIG. 6 in a second state;

FIG. 9 is a schematic diagram of the connection configuration of the travel control module of FIG. 1.

Icon: 100-a brake pedal idle stroke adjusting device; 110-a brake frame; 111-a rotating shaft; 113-a third bushing; 130-pedal rocker arm; 131-a first sleeve; 133-a first bushing; 135-gear shaft; 137-analog spring; 1371-a first mounting tab; 1373-a second mounting tab; 150-a drive rocker arm; 151-a second sleeve; 153-a second bushing; 170-a clutch assembly; 171-a first transmission member; 1711-toothed parts; 1713-no teeth; 1715-holding against the bump; 173-a second transmission member; 175-stroke actuator; 1751-a top rod; 1753-a first stopper; 1755-a second stopper; 180-a stroke control component; 181-stroke adjuster; 183-drive link; 190-a stroke sensor; 191-leg; 193-sensor rocker arm; 195-support.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the products of the present invention are usually placed when in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers 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," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As disclosed in the background, existing energy recovery systems generally have problems with cost and energy recovery, and in particular, the current tandem energy recovery schemes fall into four main categories: one type is a scheme based on ebooster, namely a scheme of replacing a traditional car vacuum booster and brake pedal driving brake master cylinder pressure building scheme with a scheme of motor driving brake master cylinder pressure building, and the scheme is high in cost and difficult to popularize. One is to implement series energy recovery based on ESP, which has a low energy recovery rate and greatly reduces the lifetime of ESP. One is to additionally arrange an energy accumulator or other energy accumulation modes to realize series energy recovery, and the scheme has high cost and poor reliability. One type is to control the switching of basic braking and motor braking through an electromagnetic valve to realize series connection type energy recovery, and also has higher cost and shorter service life. The utility model provides a brake pedal idle stroke adjusting device can balance the problem in the aspect of cost and efficiency well for low in manufacturing cost, energy recovery rate is high simultaneously.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Features in the embodiments described below may be combined with each other without conflict.

First embodiment

Referring to fig. 1, the present embodiment provides a brake pedal idle stroke adjustment device 100, which realizes energy recovery through an idle stroke, and at the same time, the brake device does not participate in braking during the idle stroke, so that the energy recovery rate is high.

The brake pedal idle stroke adjusting device 100 provided by the embodiment comprises a brake frame 110, a pedal rocker arm 130, a transmission rocker arm 150, a clutch assembly 170 and a stroke sensor 190, wherein the transmission rocker arm 150 is rotatably arranged on the brake frame 110 and is used for being connected with a brake device, the pedal rocker arm 130 is rotatably arranged on the brake frame 110, the clutch assembly 170 is connected between the pedal rocker arm 130 and the transmission rocker arm 150, the clutch assembly 170 has a first working position and a second working position, when the clutch assembly 170 is in the first working position, the pedal rocker arm 130 has a first stroke rotating relative to the transmission rocker arm 150, and when the clutch assembly 170 is in the second working position, the pedal rocker arm 130 has a second stroke rotating synchronously with the transmission rocker arm 150. The stroke sensor 190 is disposed on the brake frame 110 and connected to the pedal rocker 130 for collecting stroke information of the pedal rocker 130.

It should be noted that, in this embodiment, the braking frame 110 is disposed on the vehicle frame, and the stroke sensor 190 is electrically connected to a Micro Control Unit (MCU) of the vehicle, so as to transmit the stroke information of the pedal rocker 130 to the MCU, and the MCU is utilized to control the driving motor to realize braking feedback. The end of the pedal rocker 130 is provided with a pedal, and when the pedal is stepped on, the pedal rocker 130 can be driven to rotate, so as to trigger the braking process of the automobile. The installation position is the same as that of a conventional brake pedal, and in addition, the brake apparatus mentioned in this embodiment refers to a conventional brake device having a vacuum booster and a hydraulic system, and the specific structure and braking principle thereof will not be described in detail herein.

In this embodiment, when the clutch assembly 170 is in the first operating position, no power is transmitted between the pedal rocker 130 and the transmission rocker 150, the pedal rocker 130 rotates relative to the transmission rocker 150 to rotate for a first stroke, at this time, the pedal rocker 130 is in an idle stroke state, the transmission rocker 150 remains stationary, the braking device is not started, the new hydraulic system is not pressurized, at this time, the entire vehicle is subjected to feedback braking by the driving motor and energy collection simultaneously, and the energy collection principle is consistent with the existing energy collection principle, which is not described in detail herein. In the idle stroke stage, the braking device does not participate in braking, so that the energy recovery rate is high, and the idle stroke is realized by arranging the clutch assembly 170, so that the cost is low.

With combined reference to fig. 2 and 3, the stroke sensor 190 has three legs 191, the three legs 191 are welded on the brake frame 110, meanwhile, the stroke sensor 190 has a sensor rocker arm 193, the sensor rocker arm 193 is in transmission connection with a bracket 195, the bracket 195 is welded on the pedal rocker arm 130, the bracket 195 is driven by the pedal rocker arm 130 to move, and then the sensor rocker arm 193 is driven to move, so that the information transmission of the rotation stroke of the pedal rocker arm 130 is realized.

It should be noted that, here, the stroke sensor 190 plays a role of a rotation stroke of the mobile phone pedal rocker 130, in particular, when a driver steps on a pedal, the pedal rocker 130 rotates, the stroke sensor 190 can acquire braking information at the first time through the bracket 195, and transmit the braking information to the MCU, and the MCU controls the driving motor to perform feedback braking, and specific structures and principles of the stroke sensor 190 can be referred to the stroke sensor 190 in the prior art.

With reference to fig. 4 to 6, the clutch assembly 170 includes a first transmission member 171, a second transmission member 173, and a stroke actuator 175, the first transmission member 171 is rotatably disposed on the pedal rocker arm 130, the second transmission member 173 is disposed on the transmission rocker arm 150, the first transmission member 171 is in transmission connection with the second transmission member 173, the stroke actuator 175 is movably disposed on the brake bracket 110 and has a first stopper 1753 and a second stopper 1755, the first transmission member 171 selectively corresponds to the first stopper 1753 or the second stopper 1755, so that the pedal rocker arm 130 rotates a first stroke and/or a second stroke, wherein when the clutch assembly 170 is in the first working position, the first transmission member 171 corresponds to the first stopper 1753, and when the clutch assembly 170 is in the second working position, the first transmission member 171 corresponds to the second stopper 1755. It should be noted that, here, the first transmission member 171 corresponds to the first limiting block 1753 or the second limiting block 1755, which means that the first limiting block 1753 or the second limiting block 1755 is located on a rotation path of the first transmission member 171, so that the first transmission member 171 can selectively abut against the first limiting block 1753 or the second limiting block 1755.

In this embodiment, the stroke actuator 175 is movably disposed on the brake frame 110 and can move relative to the brake frame 110, so that the first stopper 1753 and the second stopper 1755 respectively move to the stroke track of the first transmission member 171 and abut against the first transmission member 171. Specifically, when the first limiting block 1753 moves to the stroke track of the first transmission member 171, the pedal rocker arm 130 rotates by a first stroke, at this time, the first transmission member 171 rotates relative to the pedal rocker arm 130, and after the first stroke of the pedal rocker arm 130 is finished, the first transmission member 171 abuts against the first limiting block 1753, so that the pedal rocker arm 130 and the first transmission member 171 can be kept relatively fixed, and the pedal rocker arm 130 rotates by a second stroke to drive the transmission rocker arm 150 to rotate, so that the braking device participates in braking. When the second limiting block 1755 moves to the stroke track of the first transmission member 171, the first transmission member 171 directly abuts against the second limiting block 1755, the pedal rocker arm 130 directly rotates for a second stroke, and the transmission rocker arm 150 is driven to rotate, so that the braking device directly participates in braking, and the braking process is the same as that of a conventional automobile.

In this embodiment, the brake frame 110 is provided with a rotating shaft 111, the pedal rocker arm 130 is provided with a first sleeve 131, and the first sleeve 131 is rotatably sleeved on the rotating shaft 111 so as to rotatably connect the pedal rocker arm 130 with the rotating shaft 111; the driving rocker arm 150 is provided with a second sleeve 151, the second sleeve 151 is rotatably sleeved on the rotating shaft 111 and is spaced from the first sleeve 131, so that the driving rocker arm 150 is rotatably connected with the rotating shaft 111, and the second transmission member 173 is arranged on the second sleeve 151.

Further, a first bushing 133 is further disposed in the first sleeve 131, a second bushing 153 is further disposed in the second sleeve 151, a third bushing 113 is further sleeved on the rotating shaft 111, and the first bushing 133 and the second bushing 153 are both sleeved on the third bushing 113, so that the first sleeve 131 and the second sleeve 151 can rotate independently.

It should be noted that the first sleeve 131 of the pedal rocker arm 130 and the pedal rocker arm 130 are welded together, and when the pedal rocker arm 130 rotates, the first sleeve 131 also rotates. In order to prevent the sleeve from generating abnormal noise by friction with the rotating shaft 111, a sleeve bushing is designed. The second sleeve 151 and the driving rocker 150 are also welded together, and the second driving member 173 is mounted on the second sleeve 151 and can rotate together with the latter. Between the two sleeves, a second bushing 153 is provided to prevent interference.

In this embodiment, the circumferential side wall of the first transmission member 171 is provided with a supporting protrusion 1715, and the supporting protrusion 1715 is used for supporting against the first limiting block 1753 or the second limiting block 1755. By arranging the abutting convex block 1715, the abutting effect between the first limiting block 1753 or the second limiting block 1755 can be realized, and the relative rotation or synchronous rotation between the first transmission member 171 and the pedal rocker 130 can be realized.

In this embodiment, the second transmission member 173 is a gear, the first transmission member 171 includes a toothed portion 1711 and a non-toothed portion 1713 integrally disposed, the abutting protrusion 1715 is disposed on the non-toothed portion 1713, and the toothed portion 1711 is engaged with the second transmission member 173. Specifically, a gear shaft 135 is welded on the pedal rocker 130, the first transmission member 171 is rotatably sleeved on the gear shaft 135 and can freely rotate relative to the gear shaft 135, when the pedal rocker 130 rotates relative to the rotating shaft 111 on the brake frame 110, the first transmission member 171 also performs revolution motion around the rotating shaft 111, when the first transmission member 171 corresponds to the first limit block 1753, the first transmission member 171 also performs revolution motion and simultaneously rotates, after a rotation angle α, the abutting convex block 1715 of the first transmission member 171 abuts against the first limit block 1753, wherein α is determined by a stroke of the pedal rocker 130 corresponding to the entire vehicle at a deceleration of 0.3g, that is, when the pedal rocker 130 rotates a first stroke, the first transmission member 171 rotates α. Get into the second stroke after the first stroke of footboard rocking arm 130 ends, because first driving member 171 supports and holds on first stopper 1753 to make and keep relatively fixed between first driving member 171 and the footboard rocking arm 130, thereby drive second driving medium 173 and rotate, and then drive the motion of transmission swing arm. When the first transmission member 171 corresponds to the second limiting block 1755, the abutting convex block 1715 of the first transmission member 171 directly abuts against the second limiting block 1755, so that the first transmission member 171 and the pedal rocker 130 are kept relatively fixed, the second transmission member 173 is driven to rotate, the transmission swing arm is driven to move, and at this time, the pedal swing arm directly enters the second stroke and synchronously rotates with the transmission swing arm.

In this embodiment, the range of the toothed portion 1711 is greater than or equal to the meshing range corresponding to the rotation α of the first transmission member 171, so that the first transmission member 171 can mesh with the second transmission member 173 in the rotation range.

In this embodiment, the simulation spring 137 is further disposed between the pedal rocker arm 130 and the first transmission member 171, the pedal rocker arm 130 is provided with a first mounting plate 1371, the first transmission member 171 is provided with a second mounting plate 1373, two ends of the simulation spring 137 are respectively connected with the first mounting plate 1371 and the second mounting plate 1373, and the simulation spring 137 is used for stretching the first transmission member 171 when the first transmission member 171 rotates relative to the pedal rocker arm 130. The simulation spring 137 is used to simulate the foot feeling during the first stroke so as to prevent the driver from feeling that the pedal force is very light when the first transmission member 171 idles. The performance parameters of the spring depend on the requirements of the whole vehicle on pedal feeling.

Referring to fig. 7 and 8 in combination, in the present embodiment, the stroke actuator 175 includes a push rod 1751, one end of the push rod 1751 is movably disposed on the pedal rocker 130, and the other end is movably disposed on the brake bracket 110 and can smoothly slide in the extending direction. The push rod 1751 is provided with a first limit block 1753 and a second limit block 1755, and the first limit block 1753 and the second limit block 1755 are selected to correspond to the first transmission member 171 through the movement of the push rod 1751. Specifically, first stopper 1753, second stopper 1755 and ejector pin 1751 are integrative to be set up, and the diameter of first stopper 1753 is less than second stopper 1755's diameter, and first stopper 1753's diameter is the same with ejector pin 1751, and second stopper 1755 is the disc around establishing on ejector pin 1751.

Referring to fig. 1 and 9, a stroke control assembly 180 is further disposed on the brake frame 110, the stroke control assembly 180 includes a stroke adjuster 181 and a transmission link 183, one end of the transmission link 183 is connected to the stroke adjuster 181, the other end of the transmission link 183 is connected to the stroke actuator 175, and the stroke adjuster 181 drives the stroke actuator 175 to move through the transmission link 183, so that the first stopper 1753 or the second stopper 1755 abuts against the first transmission member 171. Specifically, the transmission link 183 is connected to the push rod 1751, and the first limit block 1753 or the second limit block 1755 is made to correspond to the first transmission member 171 by driving the push rod 1751 to move.

In this embodiment, a motor and a rocker arm are arranged in the stroke adjuster 181, the rocker arm is connected with the motor in a transmission manner and is connected with the transmission connecting rod 183, the stroke adjuster 181 is electrically connected with the MCU, the sliding of the ejector rod 1751 is realized by the MCU sending an instruction to the stroke adjuster 181, the motor in the stroke adjuster 181 rotates the rocker arm to pull the transmission connecting rod 183 to move, and finally the ejector rod 1751 of the stroke executing member 175 is driven to move, so as to realize the position switching of the first limiting block 1753 and the second limiting block 1755.

In this embodiment, the stroke adjuster 181 is further provided with a limiting mechanism for limiting the position of the rocker arm, specifically, when the first limiting block 1753 corresponds to the first transmission member 171, the rocker arm is located at position 1, and when the second limiting block 1755 corresponds to the first transmission member 171, the rocker arm is located at position 2, the rocker arm can be driven by the motor to move to position 1 and position 2, respectively, and the limiting mechanism uses a torsion spring, so that the rocker arm can be kept stationary when reaching position 1 and position 2. The specific structure can be seen in the existing vehicle door lock structure.

Of course, in other preferred embodiments of the present invention, the stroke adjuster 181 can also directly use a step motor to directly drive the transmission link 183 to move through the step motor, so as to drive the push rod 1751 to move.

In summary, the brake pedal idle stroke adjustment device 100 provided in this embodiment creatively provides the pedal swing arm and the transmission swing arm separately, and realizes power transmission through the transmission connection between the first transmission member 171 and the second transmission member 173, and the specific operation principle thereof is as follows: according to the instruction sent by the MCU, the stroke adjuster 181 drives the push rod 1751 to move through the transmission link 183, so that the first limit block 1753 or the second limit block 1755 corresponds to the first transmission member 171, and limits the first transmission member 171 to form different idle strokes. Specifically, under the MCU judges the condition that needs to carry out energy recuperation, when the driver steps on the running-board, the footboard swing arm just rotates, and stroke adjuster 181 receives MCU's instruction and drives ejector pin 1751 motion for first stopper 1753 is corresponding with first transmission piece 171, and first transmission piece 171 needs idle running alpha angle back and supports with first stopper 1753, restricts first transmission piece 171 through first stopper 1753. When the first transmission member 171 idles, the pedal swing arm rotates for a first stroke, the transmission rocker arm 150 does not rotate, the hydraulic system does not build pressure, the foundation brake does not have braking force, the first transmission member 171 abuts against the first limit block 1753 after rotating for an angle α, the transmission rocker arm 150 does not start to rotate along with the pedal rocker arm 130 after the first transmission member is limited and does not move, and the hydraulic system starts to build pressure. In the first stroke process, the driving motor realizes braking feedback, so that energy recovery is realized. Under MCU judges the condition that need not carry out energy recuperation, when the driver steps on the running-board, the footboard swing arm just rotated, and stroke regulator 181 received MCU's instruction and drives ejector pin 1751 motion for second stopper 1755 is corresponding with first transmission piece 171, and second stopper 1755 directly contacts with first transmission piece 171, restricts first transmission piece 171 and rotates, and then the transmission swing arm rotates along with the footboard swing arm this moment, and idle stroke is 0, and is as an exception with the tradition car.

Compare in prior art, the brake pedal idle stroke adjusting device 100 that this embodiment provided utilizes stroke regulator 181 to adjust ejector pin 1751 position for the transmission swing arm just rotates with the footboard swing arm is synchronous after the footboard swing arm rotates first stroke, makes first stroke in-process can carry out energy recuperation, and energy recovery is high. Through the improvement to the brake pedal structure, can realize efficient energy recuperation, greatly reduced energy recuperation's cost.

Second embodiment

The present embodiment provides an automobile, which includes a frame and a brake pedal idle stroke adjusting device 100, the basic structure and principle of the brake pedal idle stroke adjusting device 100 and the generated technical effect are the same as those of the first embodiment, and for the sake of brief description, the corresponding contents in the first embodiment can be referred to where the embodiment is not mentioned in part.

The brake pedal idle stroke adjusting device 100 comprises a brake frame 110, a pedal rocker arm 130, a transmission rocker arm 150 and a clutch assembly 170, wherein the transmission rocker arm 150 is rotatably arranged on the brake frame 110 and is used for being connected with a brake device, the pedal rocker arm 130 is rotatably arranged on the brake frame 110, the clutch assembly 170 is connected between the pedal rocker arm 130 and the transmission rocker arm 150, the clutch assembly 170 has a first working position and a second working position, when the clutch assembly 170 is in the first working position, the pedal rocker arm 130 has a first stroke rotating relative to the transmission rocker arm 150, and when the clutch assembly 170 is in the second working position, the pedal rocker arm 130 has a second stroke rotating synchronously with the transmission rocker arm 150.

In this embodiment, the braking frame 110 is disposed on the vehicle frame, and the stroke sensor 190 is electrically connected to a Micro Control Unit (MCU) of the vehicle, so as to transmit stroke information of the pedal rocker 130 to the MCU, and the MCU is used to control the driving motor to realize braking feedback. The end of the pedal rocker 130 is provided with a pedal, and when the pedal is stepped on, the pedal rocker 130 can be driven to rotate, so as to trigger the braking process of the automobile. The installation position is the same as that of a conventional brake pedal, and in addition, the brake apparatus mentioned in this embodiment refers to a conventional brake device having a vacuum booster and a hydraulic system, and the specific structure and braking principle thereof will not be described in detail herein.

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 (10)

1. The utility model provides a brake pedal idle stroke adjusting device which characterized in that, includes brake frame, footboard rocking arm, transmission rocking arm and clutch assembly, the transmission rocking arm rotates to be set up on the brake frame, and be used for being connected with arresting gear, the footboard rocking arm rotates to set up on the brake frame, clutch assembly connect in the footboard rocking arm with between the transmission rocking arm, clutch assembly has first operating position and second operating position, when clutch assembly is in first operating position, the footboard rocking arm has relatively transmission rocking arm pivoted first stroke, when clutch assembly is in the second operating position, the footboard rocking arm have with transmission rocking arm synchronous pivoted second stroke.

2. The brake pedal idle stroke adjusting device according to claim 1, wherein the clutch assembly includes a first transmission member, a second transmission member, and a stroke executing member, the first transmission member is rotatably disposed on the pedal rocker arm, the second transmission member is disposed on the transmission rocker arm, the first transmission member and the second transmission member are in transmission connection, the stroke executing member is movably disposed on the brake frame and has a first limit block and a second limit block, and the first transmission member selectively corresponds to the first limit block or the second limit block so as to rotate the pedal rocker arm by the first stroke and/or the second stroke.

3. The brake pedal idle stroke adjusting device of claim 2, wherein a rotating shaft is arranged on the brake frame, a first sleeve is arranged on the pedal rocker arm, and the first sleeve is rotatably sleeved on the rotating shaft so that the pedal rocker arm is rotatably connected with the rotating shaft; the transmission rocker arm is provided with a second sleeve, the second sleeve is rotatably sleeved on the rotating shaft and is arranged at an interval with the first sleeve, so that the transmission rocker arm is rotatably connected with the rotating shaft, and the second transmission piece is arranged on the second sleeve.

4. The brake pedal idle stroke adjusting device of claim 3, wherein a first bushing is further disposed in the first sleeve, a second bushing is further disposed in the second sleeve, a third bushing is further sleeved on the rotating shaft, and the first bushing and the second bushing are both sleeved on the third bushing, so that the first sleeve and the second sleeve can rotate independently.

5. The brake pedal idle stroke adjusting device according to claim 2, wherein a contact protrusion is arranged on a circumferential side wall of the first transmission member, and the contact protrusion is used for contacting the first limiting block or the second limiting block.

6. The brake pedal idle stroke adjustment device of claim 5 wherein the second transmission member is a gear, the first transmission member includes a toothed portion and a non-toothed portion integrally formed, the holding projection is disposed on the non-toothed portion, and the toothed portion is engaged with the second transmission member.

7. The brake pedal idle stroke adjusting device of claim 2, wherein a simulation spring is further disposed between the pedal rocker arm and the first transmission member, the pedal rocker arm is provided with a first mounting piece, the first transmission member is provided with a second mounting piece, two ends of the simulation spring are respectively connected with the first mounting piece and the second mounting piece, and the simulation spring is used for stretching the first transmission member when the first transmission member rotates relative to the pedal rocker arm.

8. The brake pedal idle stroke adjusting device according to claim 2, wherein a stroke control assembly is further disposed on the brake frame, the stroke control assembly includes a stroke adjuster and a transmission link, one end of the transmission link is connected to the stroke adjuster, the other end of the transmission link is connected to the stroke executing member, and the stroke adjuster drives the stroke executing member to move through the transmission link, so that the first limiting block or the second limiting block abuts against the first transmission member.

9. The brake pedal idle stroke adjustment device of any one of claims 1 to 8 further comprising a stroke sensor disposed on the brake frame and connected to the pedal rocker arm for collecting stroke information of the pedal rocker arm.

10. A vehicle comprising a brake pedal lost motion adjustment apparatus according to any one of claims 1 to 9.

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