CN109204265A - Brake pedal simulator, brake system of car and vehicle - Google Patents

Brake pedal simulator, brake system of car and vehicle Download PDF

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Publication number
CN109204265A
CN109204265A CN201710524805.XA CN201710524805A CN109204265A CN 109204265 A CN109204265 A CN 109204265A CN 201710524805 A CN201710524805 A CN 201710524805A CN 109204265 A CN109204265 A CN 109204265A
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CN
China
Prior art keywords
elastic component
brake pedal
gear
assist motor
pedal simulator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201710524805.XA
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Chinese (zh)
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CN109204265B (en
Inventor
李传博
王铁君
刘苏丽
郑祖雄
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BYD Co Ltd
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BYD Co Ltd
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Publication date
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Priority to CN201710524805.XA priority Critical patent/CN109204265B/en
Publication of CN109204265A publication Critical patent/CN109204265A/en
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Classifications

    • 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
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/40—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
    • B60T8/4072—Systems in which a driver input signal is used as a control signal for the additional fluid circuit which is normally used for braking
    • B60T8/4081—Systems with stroke simulating devices for driver input
    • B60T8/409—Systems with stroke simulating devices for driver input characterised by details of the stroke simulating device
    • 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

Abstract

This disclosure relates to a kind of brake pedal simulator, brake system of car and vehicle, wherein the brake pedal simulator includes brake pedal, assist motor, department of assembly for being assembled on vehicle body, axially spaced apart the first elastic component and the second elastic component in department of assembly two sides, gear and rack teeth mechanism between the first elastic component and the second elastic component, it is articulated with brake pedal and cooperates the thrust structure the first elastic component and the second elastic component can be driven axially simultaneously to stretch with the first elastic component, first elastic component and the second elastic component are matched jointly provides pedal preset force combined into brake pedal, the output shaft of assist motor is cooperated by gear and rack teeth mechanism and the first elastic component and the second elastic component, power-assisted can be provided for the driving of thrust structure.Thus the brake feel of reliable brake pedal is provided and simulate accurate brake pedal force, good, brake pedal is accordingly rapid and other effects with operational stability.

Description

Brake pedal simulator, brake system of car and vehicle
Technical field
This disclosure relates to motor vehicle braking system technical field, and in particular, to a kind of brake pedal simulator, automobile brake System and vehicle.
Background technique
Existing vehicle especially in electric car, partial brake system eliminate the brake pedals of Conventional braking systems with Hydraulic or mechanical connection between brake, feedback is anti-to the braking on brake pedal when making driver that can not directly perceive braking Power, to lose the brake feel of Conventional braking systems.Wherein, brake feel refers to including pedal brake feeling, driver The synthesis of the factors such as vehicle braking deceleration, brake noise acoustically and the visual vehicle deceleration experienced Feel, wherein pedal brake feels to be most important part.For in above-mentioned braking system usually by adding brake pedal mould Quasi- device carrys out the characteristic of simulating brake pedal, feels to provide good pedal brake for driver.Brake pedal simulator Working principle is that the design object of pedal force is by mechanical braking element and certain control method come simulating brake pedal characteristic, For example, being realized in existing by mechanical braking element and hydraulic control method.And use the pedal of this hydraulic control method Not only structure is complicated but also because to may result in simulation pedal fluctuation larger and then deposit for the hydraulic shock of hydraulic system for simulator In the low problem of operational stability.
Summary of the invention
Purpose of this disclosure is to provide a kind of structure the good brake pedal simulator of simple and operational stability including should The brake system of car and vehicle of brake pedal simulator.
To achieve the goals above, the disclosure provides a kind of brake pedal simulator, which includes system Dynamic pedal, assist motor, the department of assembly for being assembled on vehicle body, the axially spaced apart two sides in the department of assembly the One elastic component and the second elastic component, the gear and rack teeth mechanism between first elastic component and second elastic component, hinge It is connected to the brake pedal and cooperates with first elastic component so that first elastic component and second elasticity can be driven Part simultaneously along the thrust structure of the axial stretching, match jointly combined into described by first elastic component and second elastic component Brake pedal provides pedal preset force, and the output shaft of the assist motor passes through the gear and rack teeth mechanism and first elasticity Part and second elastic component cooperation, power-assisted can be provided for the driving of the thrust structure.
Optionally, the gear and rack teeth mechanism includes gear shaft and rack gear, and the gear shaft is defeated with the assist motor Axis connection and it is provided with the power-assisted gear engaged with the rack gear out, the first end of the rack gear is connected to first elasticity The second end of part, the rack gear abuts or is connected to second elastic component.
Optionally, the output shaft of the assist motor passes through transmission mechanism and the gear axis connection.
Optionally, the transmission mechanism includes the deceleration mechanism with the output axis connection of the assist motor, the gear Axis is connect with the output end of the deceleration mechanism.
Optionally, the deceleration mechanism be gear pair deceleration mechanism, the gear pair deceleration mechanism include by transmission shaft with The first gear of the output axis connection and the second gear engaged with the first gear, the second gear are arranged described On gear shaft.
Optionally, the transmission shaft is parallel with the gear shaft, and the assist motor and the deceleration mechanism are arranged in institute State the two sides in the radial direction of rack gear.
Optionally, the assist motor, the deceleration mechanism and the gear and rack teeth mechanism are located at the department of assembly pair The side of second elastic component described in Ying Yu.
Optionally, first elastic component and second elastic component are helical spring.
Optionally, the brake pedal simulator includes the first spring base and use for installing first elastic component In the second spring seat for installing second elastic component, one end of first spring base and the thrust structure cooperate, and described the The other end of one spring base is connected to the second spring seat, and is formed with the gear teeth in the middle part of first spring base The rack gear of mechanism.
Optionally, first spring base includes axially disposed the first flange and the first extension rod, and described first is convex Edge can be along the axial movement, the first elastic component peace together with first extension rod with merging with the thrust structure On first extension rod and one end of first elastic component is connected to first flange, and the other end is with limit described Abutment flange in department of assembly abuts, and first extension rod is formed through the middle part of the abutment flange and first extension rod There is the rack gear to engage with the power-assisted gear, the second spring seat includes contacting with the end of first extension rod Second flange and the second extension rod extended from second flange, second elastic component are mounted on second extension rod And one end of second elastic component is connected to second flange, the other end can be connected to the shell of the brake pedal simulator In vivo.
Optionally, the thrust structure includes being articulated with the first distance rod of the brake pedal and being articulated with this first to push away Second distance rod of power bar, second distance rod are formed as ball stud, the bulb of second distance rod and first bullet The cooperation of spring abutment cambered surface.
Optionally, the radius of curvature of the bulb is less than the arc mating surface that first spring base corresponds to the bulb Radius of curvature.
Optionally, the hinged end of second distance rod is provided with the hinged seat for the U-shaped being threadedly coupled with the hinged end, should Hinge hole is respectively formed on the both side plate of hinged seat, second distance rod penetrates through the bottom plate of the hinged seat and passes through setting Nut thread connection on the bottom plate is on which floor plate with can be along axially adjustable position.
Optionally, the brake pedal simulator further includes the controller for controlling the working condition of the assist motor And the sensor of the revolving speed for detecting the assist motor.
According to another aspect of the present disclosure, a kind of brake system of car is provided, the brake system of car includes institute as above The brake pedal simulator stated.
Optionally, the brake system of car includes brak control unit, which steps on according to the braking The real-time brake pedal force or pedal travel of plate control the working condition of the assist motor.
According to the another aspect of the disclosure, a kind of vehicle is provided, which includes brake system of car as described above.
By structure as described above, in driver's brake pedal, thrust structure drives the first elastic component and the Two elastic components axially simultaneously compress, and thrust structure is cooperated the reversed work of offer by the first elastic component and the second elastic component jointly Firmly, and when the brake pedal force that this opposition acts on brake pedal reaches preset value, assist motor is activated So that it is brake pedal and thrust that its output torque, which is transmitted to the first elastic component and the second elastic component by gear and rack teeth mechanism, Structure provides power-assisted and further compresses the first elastic component and the second elastic component.Since gear and rack teeth mechanism is born by the first elasticity A part of opposition that part and the second elastic component apply and can reduce the opposition that thrust structure is subject to so that system Dynamic pedal obtains suitable brake pedal force, to provide the brake feel of reliable brake pedal, thus, it is possible to simulate to turn Brake pedal force, have operational stability is good, brake pedal response rapidly and other effects.In addition, working as assist motor, gear teeth The component malfunctions such as mechanism or the second elastic component and when can not work normally, provided by the first elastic component for brake pedal Based-pedal power and the brake feel that also can be realized brake pedal guarantee that braking system begins so as to continue to implement braking It keeps working normally eventually, keeps braking function.
Other feature and advantage of the disclosure will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Attached drawing is and to constitute part of specification for providing further understanding of the disclosure, with following tool Body embodiment is used to explain the disclosure together, but does not constitute the limitation to the disclosure.In the accompanying drawings:
Fig. 1 is the principle schematic diagram according to the brake pedal simulator of disclosure first embodiment；
Fig. 2 is according to screw mechanism in the brake pedal simulator of disclosure first embodiment and the first elastic component, the Mated condition figure between two elastic components；
Fig. 3 is according to the sectional structure chart of the brake pedal simulator of disclosure first embodiment, wherein eliminating system Dynamic pedal, the first distance rod, assist motor, sensor and controller；
Fig. 4 is the structure chart according to the second distance rod of the brake pedal simulator of disclosure first embodiment；
Fig. 5 is the installation diagram of the thrust structure and shell according to the brake pedal simulator of disclosure first embodiment One, wherein eliminating the first distance rod；
Fig. 6 is the installation diagram of the thrust structure and shell according to the brake pedal simulator of disclosure first embodiment Two, wherein eliminating the first distance rod；
Fig. 7 is the principle schematic diagram one according to the brake pedal simulator of disclosure second embodiment；
Fig. 8 is the principle schematic diagram two according to the brake pedal simulator of disclosure second embodiment, wherein for It clearly shows that internal structure, local cutting has been carried out for department of assembly and the part of the first elastic component cooperation；
Fig. 9 be according to the brake pedal simulator middle gear rackwork of disclosure second embodiment, deceleration mechanism with And second elastic component mated condition figure；
Figure 10 is the structure chart according to the second distance rod of the brake pedal simulator of disclosure second embodiment；
Figure 11 is according to thrust structure, the first elastic component and shell in the brake pedal simulator of disclosure second embodiment The installation diagram of body, wherein eliminating the first distance rod；
Figure 12 is the principle schematic diagram according to the brake pedal simulator of disclosure third embodiment, wherein in order to It clearly shows that internal structure, local cutting has been carried out for the part of department of assembly cooperated with the first elastic component；
Figure 13 is the structure chart according to the second distance rod of the brake pedal simulator of disclosure third embodiment；
Figure 14 is the installation diagram according to thrust structure and shell in the brake pedal simulator of disclosure third embodiment, Wherein eliminate the first distance rod；
Figure 15 is the principle schematic diagram according to the brake pedal simulator of the 4th embodiment of the disclosure；
Figure 16 is the sectional structure chart according to the brake pedal simulator of the 4th embodiment of the disclosure, wherein eliminating the One distance rod and brake pedal；
Figure 17 is matching according to the second distance rod in the brake pedal simulator of the 4th embodiment of the disclosure and butt joint Conjunction state figure；
Figure 18 is according to the installation diagram one of the brake pedal simulator of the 4th embodiment of the disclosure, wherein eliminating braking Pedal and the first distance rod；
Figure 19 is according to the installation diagram two of the brake pedal simulator of the 4th embodiment of the disclosure, wherein eliminating braking Pedal and the first distance rod；
Figure 20 is according to the installation diagram three of the brake pedal simulator of the 4th embodiment of the disclosure, wherein eliminating braking Pedal and the first distance rod；
Figure 21 is the installation diagram according to thrust structure and shell in the brake pedal simulator of the 4th embodiment of the disclosure, Brake pedal and the first distance rod is wherein omitted；
Description of symbols
100,200,300,400 brake pedal；101,201,301,401 assist motor；102,202,302,402 thrust knot Structure；103,203,303,403 first elastic component；104,204,304,404 second elastic component；105,205,305,405 department of assembly； 106,206 gear and rack teeth mechanism；306,406 screw mechanism；107,307,407 planet gear reducing mechanism；207 gear pair speed reducers Structure；108,208,308,408 controller；109,209,309,409 sensor；110,210,310,410 first spring base；111, 211,311,411 second spring seat；312,412 connecting rod；3102 first extension rods；313,413 transmission gear；3112 second extend Bar；314,414 idle pulley；；415,3,101 first flange；416,3,111 second flange；120,320,420 shell；1011,2011, 3011,4011 output shaft；1021,2021,3021,4,021 first distance rod；1022,2022,3022,4,022 second distance rod； 1023,2023,3023,4023 bulb；1024,2024,3024,4024 hinged seat；1025,2025,3025,4025 hinge hole； 1026,2026,3026,4026 bottom plate；1027,2027,3027,4027 nut；1028 locking seats；4028 butt joints；1029 cards Only protrusion；4029 push-plates；1051,2051,3051,4051 fastener；2052 restriction protrusions；2053 abutment flanges；1061,2061 Gear shaft；3061,4061 power-assisted screw rod；1062,2062 rack gear；1063,2063,3062,4062 power-assisted gear；1071,3071, 4071 sun gears；2071 first gears；1072,3072,4072 planet carrier；2072 second gears；1073,3073,4073 gear ring； 2073 transmission shafts；1074,3074,4074 planetary gear；1101 locking grooves；3103 mobile disks；3104 fixed disks；1201,2201, 4201 first shell portions；1202,2202,4202 second shell portion；1203,2203,4203 third housing section；2204 the 4th shells Portion；1204,3204,4204 dust cover；2205 first locking platforms；2206 second locking platforms；40281U shape pressing plate.
Specific embodiment
It is described in detail below in conjunction with specific embodiment of the attached drawing to the disclosure.It should be understood that this place is retouched The specific embodiment stated is only used for describing and explaining the disclosure, is not limited to the disclosure.
In the disclosure, in the absence of explanation to the contrary, the noun of locality used such as " inside and outside " typically refers to corresponding portion Part profile it is inside and outside.
The disclosure provides the technical solution of a kind of brake pedal simulator, brake system of car and vehicle.The disclosure Brake pedal simulator realizes simulating brake pedal characteristic by elastic component and braking method, here, brake pedal characteristic is logical It is often to be embodied by the corresponding relationship between pedal force and pedal travel and braking response time.The brake pedal of the disclosure Simulator uses the fit structure of multiple elastic components and the thrust structure for driving multiple elastic components axially retractable, specifically It is realized by following technical solution: according to the brake pedal of the disclosure according to first to fourth embodiment of the disclosure on ground Simulator include brake pedal, multiple elastic components and be articulated with the brake pedal and with multiple elastic components cooperate with At least partly elastic component in the thrust structure for driving the elastic component axially retractable, multiple elastic components is the system Dynamic pedal provides the pedal preset force.Here, pedal preset force typically refers under the original state of non-brake pedal, Brake pedal by via thrust structure by the reaction force applied by elastic component.Wherein, all elastic part or part bullet Property part for brake pedal provide pedal force, guarantee that braking system remains normal work and is capable of providing reliable brake pedal Brake feel, accurate brake pedal force can be simulated from there through simple structure as described above, and there is operation Have good stability, brake pedal it is corresponding rapid and other effects.In addition, can be indirectly by control for the pedal travel of brake pedal The shift motion of controlling push-force structure perhaps compression travel of elastic component etc. mode come determine or can also by other rationally Ground control mode controls the pedal travel of brake pedal, is not particularly limited herein.
In addition, the cooperation mentioned in the disclosure can usually be construed to by direct or indirect connection, fixation, abutting or Other fit systems and can be realized power transmitting function, do not limit especially herein.
In addition, multiple elastic components can be that the different demands such as installation space, operational stability are come rationally according to actual needs It designs the position of multiple elastic components, be mutually arranged relationship in ground.Optionally, the partial elastic part in multiple elastic components is In the case that the brake pedal provides the pedal preset force, the thrust structure can drive multiple institutes according to predetermined order The partial elastic part in elastic component is stated with remaining elastic component along the axial stretching；Multiple elastic components are the system In the case that dynamic pedal provides the pedal preset force, the thrust structure can drive all elastic components along axial synchronous It is flexible.Here, the case where providing pedal preset force for the partial elastic part in multiple elastic components for brake pedal, can pass through The partial elastic part in the multiple elastic component (state of i.e. non-brake pedal) and thrust knot in the initial state Structure cooperation, and remaining elastic component in multiple elastic components in the initial state not with thrust structure and/or the partial elastic part The mode of cooperation is realized.After brake pedal to default pedal travel, remaining elasticity is directly driven by thrust structure Part or thrust structure drive the modes such as remaining elastic component by the partial elastic part to realize remaining described elasticity of driving The axially retractable function of part.Here, remaining elastic component by it is flexible during, the partial elastic part can also be with described Remaining elastic component synchronously stretches or the partial elastic part also may remain in compressed state, can basis to this Actual needs specifically designs.In addition, for the above-mentioned specific arrangement side according to predetermined order according to multiple elastic components referred to Formula carrys out reasonable design.For example, the partial elastic part in multiple elastic components is more than two and is sequentially connected along axial direction Arrangement, and remaining elastic component be it is more than two and along axial direction be sequentially connected or arranged for interval in the case where, it is described suitable according to making a reservation for Sequence can first drive the partial elastic part to compress for thrust structure, can after the partial elastic part is compressed to predeterminated position By in such a way that the partial elastic part is with remaining described elastic component contact or thrust structure is matched with remaining described elastic component The mode of conjunction is come so that thrust structure successively drives remaining elastic component compression.And for being changed into initial shape from compressive state The sequence of state can be opposite with sequence as described above.In addition, for another example, when the partial elastic part is that two or more (herein may be used With using identical size elastic component) and along circumferential direction arranged for interval (for example, can be in two axially spaced apart circles Circumferentially spaced multiple elastic components along described two supporters are arranged between the isostructural supporter of disk), and remaining bullet Property part be also more than two (elastic component of identical size can be used herein) and along circumferential direction arranged for interval (for example, can be with The circumferentially-spaced cloth along described two supporters is arranged between two axially spaced apart isostructural supporters of disk The multiple elastic components set) in the case where, it is described first to drive the partial elastic jointly according to predetermined order for thrust structure Part is axially compressed, after the partial elastic part is compressed to predeterminated position jointly, can by the partial elastic part with The mode or thrust structure of remaining all elastic part contact and the mode of remaining all elastic part cooperation come so that Thrust structure drives remaining described all elastic part axially compressed jointly.And for being changed into original state from compressive state Sequence can be opposite with sequence as described above.For the specific driving method to elastic component of the example above, the disclosure is not It is defined in this, it, can as long as the function of driving multiple elastic components flexible can finally can be realized by the driving of thrust structure To fall in the protection scope of the disclosure using the arrangement of other a variety of multiple elastic components appropriate.
Optionally, the brake pedal simulator includes for driving the elastic component flexible can be the thrust knot Structure provides the driving device of power-assisted and/or resistance for the driving of the elastic component.Here, the driving device can use it is more Structure kind appropriate, can provide power-assisted, resistance or can meet simultaneously and mention for thrust structure for the driving of elastic component For the function of power-assisted and resistance, thus, it is possible to the cooperation by driving device and thrust structure can more accurate simulation go out Required pedal force.Here, optionally, the brake pedal simulator includes for driving the elastic component further to stretch with energy Enough the power assisting device of power-assisted is provided for the driving of the elastic component for the thrust structure.Wherein, the power assisting device can be with It using various structures, such as can be the single of the simple telescoping mechanism such as driving cylinders, the jack such as electric cylinder, cylinder, hydraulic cylinder Structure, or may be using a variety of machines such as gear pair, rack-and-pinion, turbine and worm pair, V belt translation pair, screw pair Tool transmission mechanism is mutually driven the structural assembly of cooperation, no matter which kind of structure is used, is not limited to the above-mentioned structure referred to herein, The function of power-assisted is provided for the driving of elastic component as long as can be implemented as thrust structure.
Wherein, optionally, the power assisting device include assist motor, in the assist motor and the elastic component extremely The transmission matching mechanism of small part elastic component cooperation, can be mentioned by the driving that the transmission matching mechanism is the thrust structure For power-assisted.In the disclosure, it is stepped on although the brake pedal simulator for providing following four specific embodiment carrys out simulating brake Plate characteristic, wherein for the ease of and clearly demonstrate the disclosure, the brake pedal 100,200,300,400 and power-assisted being related to Motor 101,201,301,401 has been all made of identical structure, but this is not used to the interest field of the restriction disclosure.In addition, The arragement construction of various reasonable can be used for transmission matching mechanism, pass the output torque of assist motor as long as can be realized Elastic component is passed so that the function of power-assisted can be provided for thrust structure.For example, as shown in Figure 1 to 11, the transmission Matching mechanism may include gear and rack teeth mechanism, and the output shaft of assist motor can pass through this gear and rack teeth mechanism and elastic component Cooperation, so as to provide power-assisted for the driving of elastic component for thrust structure, for another example, and as shown in Figure 12 to Figure 21, the biography Dynamic matching mechanism may include screw mechanism, and the output shaft of assist motor can be cooperated by this screw mechanism and elastic component, To provide power-assisted for the driving of elastic component for thrust structure.But the disclosure is not limited to above structure, removes above structure Except, the transmission matching mechanism can also pass for gear auxiliary drive gear, Worm and worm-wheel gearing, tape handler, chain The various structures such as motivation structure, or the appropriately combined structure between the above-mentioned various structures being related to.
Specifically, in driver's brake pedal, thrust structure drive elastic component it is axially compressed, thrust structure by The opposition provided to elastic component, and when the brake pedal force that this opposition acts on brake pedal reaches default When value, starting assist motor makes the torque exported by assist motor be transmitted to elastic component by transmission matching mechanism, with can There is provided power-assisted for brake pedal and thrust structure and elastic component driven further to be compressed so that brake pedal and thrust structure into One step is subjected to displacement variation, and since transmission matching mechanism bears a part of opposition applied by elastic component, thus It can reduce the opposition that thrust structure is subject to, so that brake pedal obtains suitable brake pedal force, so as to mould Draw up the pedal force of brake pedal and the target value of pedal travel.Here, when assist motor or transmission matching mechanism break down And when can not work normally, the brake feel that based-pedal power is also capable of providing brake pedal is provided by elastic component, thus It can continue to implement braking, keep braking function.
The brake pedal of drive and using assist motor as described above and be driven matching mechanism for to(for) elastic component It is dynamic that power-assisted is provided, thus the perfect linear characteristic of elastic component and realize the nonlinear change characteristic of brake pedal.That is, elastic Part provides based-pedal counter-force, guarantees that braking system remains work to lose in the components such as assist motor or transmission matching mechanism Also the brake feel of brake pedal is capable of providing when effect, by assist motor for elastic component driving force come comprehensive simulation pedal Power provides target pedal force by the cooperation of assist motor and elastic component, with compensated foundation pedal force and target pedal force Between remainder.Simulating brake pedal characteristic is realized by brake control method as described above as a result, and is passed through Assist motor is replaced such as existing hydraulic braking component with transmission matching mechanism and is not only simple in structure and not will receive hydraulic Etc. factors influence, thus have operational stability is good, brake pedal response rapidly and other effects.
Wherein, the elastic component may include along first elastic component and the second elastic component axially arranged described One elastic component and/or second elastic component are matched jointly provides pedal preset force combined into the brake pedal, and the transmission is matched It closes mechanism and first elastic component and/or second elastic component cooperates.Here, the quantity for elastic component is not limited to Two elastic components can also be selected reasonably according to the actual situation.Here, the form of two elastic components is used, for two The arrangement of a elastic component can connect using disclosed in following first to fourth embodiments as shown in Fig. 1 to Figure 21 Mode can also use parallel way.Herein, it should be noted that series system refers to that two elastic components are axially disposed, and Two elastic components are synchronously axially retractable always under the driving by thrust structure and/or driving motor, that is, are initially driven Two elastic components are stretched simultaneously when dynamic.Specifically, under the driving of brake pedal and/or assist motor, two can be made Elastic component is synchronously carried out compression, and the pedal preset force of brake pedal can be by the first elastic component and in series system The common cooperation of two elastic components is to provide；And parallel way refers to that two elastic components are axially disposed, and thrust structure and/ Or the lower two elastic component parts of driving of assist motor are successively axially retractable, i.e., one of two elastic components when initially being driven It first realizes and stretches along axial, another one carries out stretching along axial again later.Specifically, in brake pedal and/or power-assisted electricity Under the driving of machine, can to contact with each other during some elastic component is in compression with another elastic component and simultaneously into The arrangement of one step compression, and the pedal preset force of brake pedal can be by the first elastic component or second in parallel way Elastic component provides, wherein compressed at first for the elastic component that brake pedal provides pedal preset force.In addition, for two elasticity The arrangement of part can use the structure of various reasonable, for example, in the case that two elastic components use series arrangement, it can With by two axially adjacent arrangements of elastic component, or least partially overlapped arrangement can also be used.For another example, two bullets Property part using parallel arrangement structure the case where, can be axially spaced apart by two elastic components, or can also be by two bullets The arrangement that property part is overlapped along axial component, is not particularly limited this disclosure, can such as space according to actual needs Arrangement demand etc. carrys out the arragement construction of specific design flexibility part.In above description, in order to illustrate more clearly of the arrangement of elastic component Mode is described for the arragement construction of two elastic components, but also can be with for one or more elastic component It is applicable in above-mentioned parallel way or series system.Such as the elastic component include by multiple first elastic components it is circumferentially spaced arrangement and The first Flexible element side by side and the second Flexible element by the circumferentially spaced arrangement of multiple second elastic components and side by side.For this Above-mentioned mode in parallel or series can also be applied in the elastic component of kind structure.
Further optionally, the transmission matching mechanism includes screw mechanism or gear and rack teeth mechanism, the assist motor Output shaft is cooperated by the screw mechanism or the gear and rack teeth mechanism and first elastic component and second elastic component, First elastic component and second elastic component can be driven synchronously to stretch or the output shaft of the assist motor is logical It crosses the screw mechanism and first elastic component or second elastic component cooperates, described in it can be driven according to predetermined order First elastic component and second elastic component are along the axial stretching.That is, as described above, in two elastic components using series connection cloth In the case where setting mode, the output shaft of assist motor can pass through screw mechanism or gear and rack teeth mechanism and the first elastic component and The cooperation of two elastic components provides power-assisted by the driving force that assist motor exports for thrust structure, thus drives by thrust structure Under dynamic first elastic component and the compressed state of the second elastic component, by assist motor can further drive the first elastic component and The synchronization of second elastic component is stretched.In the case where two elastic components use parallel arrangement mode, the output shaft of assist motor is logical Screw mechanism or gear and rack teeth mechanism and the first elastic component or the cooperation of the second elastic component are crossed, thus the drive exported by assist motor Power provides power-assisted for thrust structure, is thus driving the first elastic component or the compressed shape of the second elastic component by thrust structure Under state, the first elastic component and/or the second elastic component can be driven along axial further according to predetermined order by assist motor It is flexible.Here, for being arranged in parallel mode, when the output shaft of assist motor passes through screw mechanism or gear and rack teeth mechanism and first When elastic component cooperates, after first driving the first elastic component flexible by assist motor and transmission matching mechanism, pass through the first elastic component It is further driven with the subsequent mode cooperated with the second elastic component of mode or transmission matching mechanism of the second elastic component cooperation Second elastic component is axially retractable；When the output shaft of assist motor passes through screw mechanism or gear and rack teeth mechanism and the second elastic component When cooperation, after can first driving the second elastic component axially retractable by assist motor and transmission matching mechanism, then pass through second Elastic component and the first elastic component cooperation mode or transmission fit structure and the first elastic component directly cooperate by way of come Further the first elastic component of driving is axially retractable.For above-mentioned assist motor and transmission matching mechanism for the first elastic component and The specific driving sequence of second elastic component, the disclosure are not needed to limit, can reasonably be set according to actual arrangement structure Meter.
In addition, brake pedal simulator as described above can also include the department of assembly for being assembled on vehicle body, it is described First elastic component and second elastic component are arranged in the one or both sides of the department of assembly.Wherein, when first elastic component In the case where the side for being arranged in department of assembly with the second elastic component, pedal simulator to be braked is assembled to vehicle by department of assembly When, two elastic components positioned at department of assembly side are respectively positioned in enging cabin.In addition, in the first elastic component and the second elastic component cloth It sets in the case where the two sides of department of assembly, when pedal simulator to be braked is assembled to vehicle by department of assembly, is located at the assembly One of first elastic component and the second elastic component of portion two sides can be located in enging cabin, and another one can be exposed to and drive Room is sailed, thus, it is possible to reduce occupied space of the brake pedal simulator in enging cabin.But it's not limited to that for the disclosure, right It can reasonably be arranged according to the actual situation in the specific position of elastic component.
The arranged in series scheme of elastic component in the disclosure is described in detail in the following contents, but the elastic component Arrangement can also be using parallel arrangement scheme as described above.
It can specifically be realized in the following way using parallel arrangement scheme.
That is, the brake pedal simulator includes brake pedal, thrust structure and multiple elastic components, in multiple elastic components Partial elastic part provide pedal preset force for the brake pedal, the thrust structure be articulated with the brake pedal and with institute The cooperation of partial elastic part is stated for successively driving the partial elastic part and remaining elastic component edge in multiple elastic components Axial stretching, the brake pedal simulator has the first working condition and the second working condition, in first working condition Under, the partial elastic part is compressed, and under second working condition, the partial elastic part and remaining described elastic component are same Step is compressed.
Here, providing pedal preset force for the partial elastic part in multiple elastic components for brake pedal, institute can be passed through State the partial elastic part in multiple elastic components (state of i.e. non-brake pedal) and thrust structure in the initial state Cooperation, and remaining elastic component in multiple elastic components in the initial state first not with thrust structure and/or the partial elastic part The mode of cooperation is realized.After brake pedal, first drive the partial elastic part axially retractable by thrust structure, After brake pedal is moved to default pedal travel, the thrust structure by directly successively cooperate with remaining elastic component (such as Contact etc. fit systems) mode or thrust structure the partial elastic part and remaining elastic component cooperation by way of come Realize the function of driving remaining described elastic component axially retractable.In addition, the above-mentioned successively driving referred to refers to first drive part Elastic component is axially retractable, the driving method for driving remaining elastic component axially retractable again later, wherein for driving remaining bullet During property part is axially retractable, the partial elastic part can be axially retractable together with remaining described elastic component.More Body, when the partial elastic part in multiple elastic components be in multiple and the multiple elastic component described in remaining elastic component In the case where being also multiple, using the partial elastic part as the first elastic module group, using remaining described elastic component as Two elastic module groups, in the case, successively driving is the point on the basis of the first elastic module group and the second elastic module group, i.e., It first drives the first elastic module group axially retractable, drives the second elastic module group axially retractable again later, as the first bullet Between each elastic component in property module group, specific this public affairs of driving method between each elastic component in the second elastic module group It opens and does not limit.For example, each elastic component in the first elastic module group can axially simultaneously be stretched, the second elastic module Each elastic component in group can also axially simultaneously be stretched or the second elastic component module group in each elastic component It can also successively be stretched along axial direction.
By stepping on as described above, the partial elastic part in multiple elastic components provides based-pedal counter-force for brake pedal When lower brake pedal, by successively driving the partial elastic part in multiple elastic components and remaining elastic component axially retractable, thus It is capable of providing the brake feel of reliable brake pedal, thus, it is possible to simulate accurate brake pedal force.In addition, in multiple bullets Property part in remaining described elastic component can be thrust knot by the partial elastic part in multiple elastic components when breaking down The brake feel that structure provides based-pedal counter-force always and is also capable of providing brake pedal is protected so as to continue to implement braking Card braking system remains normal work, keeps braking function.Brake pedal simulator as described above has stable operation Property good, brake pedal it is corresponding rapid and other effects.
Optionally, the brake pedal simulator includes for driving the elastic component further to stretch can be described Thrust structure provides the power assisting device of power-assisted for the driving of the elastic component.Wherein, the power assisting device can use a variety of Structure, such as can be the single structure of the simple telescoping mechanism such as driving cylinders, the jack such as electric cylinder, cylinder, hydraulic cylinder, or Or using a variety of mechanical transmissioning machines such as gear pair, rack-and-pinion, turbine and worm pair, V belt translation pair, screw pair Structure is mutually driven the structural assembly of cooperation, no matter which kind of structure is used, the above-mentioned structure referred to is not limited to herein, as long as can It is embodied as thrust structure and provides the function of power-assisted for the driving of elastic component.
Optionally, the elastic component includes axially disposed the first elastic component and the second elastic component, first elasticity Part provides the pedal preset force, the power assisting device and first elastic component and/or described second for the brake pedal Elastic component cooperation.Wherein, two elastic components are not limited to for the quantity of elastic component, it is reasonable to come according to the actual situation Ground selection.Here, using the parallel form of two elastic components, and two under the driving of thrust structure and/or power assisting device Elastic component can be successively axially compressed, i.e., the first elastic component is first realized along axial compression when initially being driven, and later second Elastic component is axially compressed by driving again, and in the compressed process of the second elastic component, the first elastic component is also with the second elastic component It is compressed together.Specifically, under the driving of thrust structure and/or power assisting device, can pressing in the first elastic component The arrangement for contacting with each other during contracting with the second elastic component and further compressing simultaneously.Although only needle in the foregoing description The process compressed to the first elastic component and the second elastic component is illustrated, but for the first elastic component and the second elastic component By the reverse actuating force opposite with the driving force provided at present, (as thrust structure is for elastic component during compressed The resistance provided is provided) and can also have it from the course of work that current compression is positioned against the direction movement that elastic component stretches In, the structure of various reasonable can be used for the arrangement of two elastic components, it can be axially spaced by two elastic components Arrangement, or the arrangement that two elastic components can also be overlapped along axial component, are not particularly limited this disclosure, can To carry out the arragement construction of specific design flexibility part such as space layout demand according to actual needs.In above description, although needle The arragement construction of two elastic components is described, but one or more elastic component also can be applicable in above-mentioned Parallel way.Such as the elastic component includes the first Flexible element by the circumferentially spaced arrangement of multiple first elastic components and side by side With the second Flexible element by the circumferentially spaced arrangement of multiple second elastic components and side by side.It can also for the elastic component of this structure To be applicable in above-mentioned parallel way.
Optionally, the power assisting device includes assist motor and the assist motor and first elastic component and/or institute The transmission matching mechanism of the second elastic component cooperation is stated, can mention by the driving that the transmission matching mechanism is the thrust structure For power-assisted.Here, the arragement construction of various reasonable can be used for transmission matching mechanism, as long as can be realized assist motor Output torque pass to the first elastic component and/or the second elastic component so that the function of power-assisted can be provided for thrust structure. For example, optionally, the transmission matching mechanism includes screw mechanism or gear and rack teeth mechanism, the output shaft of the assist motor is logical Crossing the screw mechanism or the gear and rack teeth mechanism can cooperate with second elastic component, can be the thrust structure Driving provide power-assisted by the thrust mechanism first elastic component is compressed under first working condition, Under second working condition, by the cooperation of the thrust mechanism and the assist motor so that first elastic component and The second elastic component synchronization is compressed.But the disclosure is not limited to above structure, and in addition to the foregoing structure, the transmission is matched Closing mechanism can also be a variety of knots such as gear auxiliary drive gear, Worm and worm-wheel gearing, tape handler, chain-drive mechanism Structure, or the appropriately combined structure between the above-mentioned various structures being related to.
More than, only resilient element connected in parallel arrangement is provided a brief description, and for using resilient element connected in parallel mode The specific structure of pedal simulator can be according to the technical solution of foregoing description come reasonable design.
Hereinafter, by referring to figs. 1 to Figure 21 to the disclosure using springs in series scheme first to fourth embodiment into Row is described in detail.
Firstly, being carried out in detail referring to figs. 1 to Fig. 6 to the brake pedal simulator of the first embodiment according to the disclosure Explanation.
As shown in Figure 1, including brake pedal 100, power-assisted according to the brake pedal simulator of disclosure first embodiment Motor 101, the department of assembly 105 for being assembled on vehicle body, be axially disposed in the department of assembly 105 side first elasticity Part 103 and the second elastic component 104, be driven matching mechanism, be articulated with the brake pedal 100 and with first elastic component 103 Cooperation is can drive first elastic component 103 and second elastic component 104 simultaneously along the thrust knot of the axial stretching Structure 102, first elastic component 103 and second elastic component 104 are jointly with combined into the brake pedal 100 offer pedal Preset force, wherein the transmission matching mechanism includes between first elastic component 103 and second elastic component 104 Gear and rack teeth mechanism 106, the output shaft 1011 of the assist motor 101 passes through the gear and rack teeth mechanism 106 and described the One elastic component 103 and second elastic component 104 cooperate can provide power-assisted for the driving of the thrust structure 102, thus First elastic component 103 and second elastic component 104 is driven synchronously to stretch.Here, the first elastic component 103 and the second bullet Property part 104 (does not step on braking in the initial state as the pedal force of brake pedal 100 and the analog element of pedal travel In the case where pedal 100), the first elastic component 103 and the second elastic component 104 are in compressive state to mention for brake pedal 100 For pedal preset force, wherein the first elastic component 103 still is able in the case where the second elastic component 104 fails so that brake pedal 100 keep normal pedal force, to improve the security performance of brake pedal simulator.
As described above, thrust structure 102 drives the first elastic component 103 and second in driver's brake pedal 100 Elastic component 104 axially simultaneously compresses, and thrust structure 102 is cooperated jointly by the first elastic component 103 and the second elastic component 104 to be mentioned The opposition of confession, and when the brake pedal force that this opposition acts on brake pedal 100 reaches preset value, it opens Dynamic assist motor 101 makes its output torque be transmitted to the first elastic component 103 and the second elastic component by gear and rack teeth mechanism 106 104 and be that brake pedal 100 and thrust structure 102 provide power-assisted and further compress the first elastic component 103 and the second elastic component 104, so that 102 further occurrence change in displacement of brake pedal 100 and thrust structure, and since gear and rack teeth mechanism 106 is held By a part of opposition applied by the first elastic component 103 and the second elastic component 104, thus, it is possible to reduce thrust structure 102 oppositions being subject to are stepped on so that brake pedal 100 obtains suitable brake pedal force so as to simulate braking The pedal force of plate 100 and the target value of pedal travel.Here, when assist motor 101, gear and rack teeth mechanism 106 or the second elasticity The component malfunctions such as part 104 and when can not work normally, be that brake pedal 100 provides basis and steps on by the first elastic component 103 Plate power and the brake feel that also can be realized brake pedal 100 keep braking function so as to continue to implement braking.In addition, When driver discharge brake pedal 100 when, 101 power loss of assist motor and make the first elastic component 103 and the second elastic component 104 by The elastic-restoring force of itself and realize self-return.Simulating brake pedal is realized by brake control method as described above 100 characteristic, and existing hydraulic braking component is replaced by the cooperation of assist motor 101 and gear and rack teeth mechanism 106 And brake pedal simulator is not only simple in structure and not will receive the influence of hydraulic many factors in such as existing, to have Have operational stability is good, brake pedal response rapidly and other effects.In addition, though transmission matching mechanism is adopted in the present embodiment With gear and rack teeth mechanism, but it's not limited to that for the disclosure, and the transmission matching mechanism reasonable can be arranged using other Structure.
As depicted in figs. 1 and 2, optionally, the transmission matching mechanism includes gear and rack teeth mechanism 106, the rack-and-pinion Mechanism 106 includes gear shaft 1061 and rack gear 1062, and the output shaft 1011 of the gear shaft 1061 and the assist motor 101 connects The power-assisted gear 1063 engaged with the rack gear 1062 is connect and is provided with, one end of the rack gear 1062 is connected to first bullet Property part 103, the other end of the rack gear 1062 are connected to second elastic component 104.Here, rack gear 1062 can be by being used for The mounting base for installing the first elastic component 103 and the second elastic component 104 is connect with the first elastic component 103 and the second elastic component 104.Again Alternatively, the rack gear 1062 can be formed directly into the mounting base for installing the first elastic component 103 and the second elastic component 104 And the first elastic component 103 and the second elastic component 104 are connected to so that the first elastic component 103 and the second elastic component 104 can be driven same It stretches on step ground.Spy is not made for the connection type disclosure of rack gear 1062 and the first elastic component 103 and the second elastic component 104 It does not limit, as long as rack gear 1062 is enabled to receive the output from assist motor 101 and engaging with power-assisted gear 1063 Power, so that rack gear 1062 is able to drive the first elastic component 103 and the axially compressed direction of the second elastic component 104 is mobile And realize the compression of the first elastic component 103 and the second elastic component 104.
Optionally, the transmission matching mechanism further includes deceleration mechanism, and the output shaft 1011 of the assist motor 101 passes through The deceleration mechanism is connect with the gear shaft 1061.Here, the deceleration mechanism can use a variety of structures appropriate, such as It can be using gear pair deceleration mechanism, turbine and worm decelerator, planet gear reducing mechanism etc..Here, optionally, such as Fig. 1 institute Showing, the deceleration mechanism is planet gear reducing mechanism 107, in the planet gear reducing mechanism 107, sun gear 1071 and the power-assisted The output shaft 1011 of motor 101 connects, and planet carrier 1072 is connect with the gear shaft 1061, and gear ring 1073 is fixed on the braking In the shell 120 of pedal simulator.In addition, being additionally provided in planet gear reducing mechanism 107 and sun gear 1071 and gear ring 1073 The planetary gear 1074 of engagement, planetary gear 1074 are provided centrally with planet carrier 1072.The output torque of assist motor 101 as a result, Through passing to rack gear 1062 by power-assisted gear 1063 after the 107 deceleration increment of planet gear reducing mechanism, that is, assist motor 101 output torque passes through key, spline connection etc. after sun gear 1071, planetary gear 1074 and planet carrier 1072, via being located at The power-assisted gear 1063 on gear shaft 1061 that form is connect with planet carrier 1072 passes to rack gear 1062, so that 1062 edge of rack gear The first elastic component 103 and the second elastic component 104 is driven synchronously to stretch during axial movement.By using planet-gear speed reducer Structure 107, due to planet gear reducing mechanism 107 itself have the characteristics that it is light-weight and small in size so that brake pedal simulate Device has total quality light and characteristics of compact layout.In addition, assist motor can be effectively improved by the way that planet gear reducing mechanism 107 is arranged 101 transmission efficiency.
Optionally, first elastic component 103 and second elastic component 104 are helical spring.Thus, it is possible to by pushing away The driving force that power structure 102 and/or assist motor 101 act on makes quick and sensitive reaction and stretches.In addition, though at this Helical spring is all made of for the first elastic component and the second elastic component in embodiment and following six kinds of embodiments, but this is simultaneously The scope of the present disclosure is not limited, is come in the cooperation that can guarantee brake pedal, thrust mechanism, assist motor and transmission matching mechanism In the case where driving the first elastic component and the second elastic component flexible, first elastic component and the second elastic component can use a variety of Reasonable structure.
Optionally, as shown in figure 3, the brake pedal simulator further includes spring base, which includes for installing First elastic component 103 and with the thrust structure 102 cooperation the first spring base 110 and for installing described second The second spring seat 111 of elastic component 104, the rack gear 1062 of the gear and rack teeth mechanism 106 are formed in the second spring seat 111 The upper and described second spring seat 111 is connected to first elastic component 103.Specifically, for example, optionally, first spring Seat 110 may include the first flange cooperated with thrust structure 102 and the extension rod that extends from first flange towards side, The second spring seat includes axially spaced apart the second flange and third flange, axially extends to from the second flange Three flanges are simultaneously used to form the first extension rod of rack gear 1062 and are axially distant from the side of the second flange from the third flange To the second extension rod of extension, second flange is opposite with the first flange, and the first elastic component 103 is mounted on the extension rod And both ends are connected to first flange and second flange respectively, and the second elastic component 104 is then mounted on the second extension rod On, and one end of second elastic component 104 is connected to third flange, and the other end can be connected to brake pedal simulator In shell 120.By arragement construction as described above, the first elastic component 103 and the second elastic component 104 pass through thrust structure 102 And/or synchronization telescope can reliably and be steadily realized under the driving of gear and rack teeth mechanism 106.But the disclosure is not limited to This, can carry out reasonable design for the specific structure of spring base according to the actual situation, as long as can be realized the first elasticity of support The function of 104 synchronization telescope of the first elastic component 103 and the second elastic component is enabled to while part 103 and the second elastic component 104 ?.For example, flexible first spring base 110, rack gear 1062 and second spring seat 111 may be integrally formed.
Optionally, as shown in Figure 1 and Figure 4, the thrust structure 102 includes being articulated with the first of the brake pedal 100 Distance rod 1021 and the second distance rod 1022 for being articulated with first distance rod 1021, second distance rod 1022 are formed as bulb Bolt, the bulb 1023 of second distance rod 1022 and 110 cambered surface of the first spring base cooperate.It is stepped on as a result, in driver When lower brake pedal 100 brings it about change in displacement, the first distance rod 1021 and the second distance rod 1022 are also subjected to displacement therewith Variation, and cooperated by the cambered surface of the bulb 1023 of the second distance rod 1022 and the first spring base 110, enable to the second thrust Bar 1022 adapts to angle change, prevents movement interference phenomenon.Here, optionally, the radius of curvature of the bulb 1023 is small Correspond to the radius of curvature of the arc mating surface of the bulb 1023 in first spring base 110.As a result, in the appropriate range Allow the arc mating surface of the bulb 1023 of the second distance rod 1022 and the first spring base 110 that relative motion occurs and to brake Transmission process between pedal 100, thrust structure 102, the first elastic component 103 and the second elastic component 104 is more smooth.But this Open it's not limited to that, and the fit form between thrust structure 102 and the first spring base 110 can be using other reasonable knots Structure, such as the second distance rod 1022 can use ball pair fit form, universal joint type of attachment with the first spring base 110 or adopt The form of the end face of the first spring base 110 is directly connected to the second distance rod 1022.
Optionally, the hinged end of second distance rod 1022 is provided with the hinged seat 1024 of U-shaped, the hinged seat 1024 Hinge hole 1025 is respectively formed on both side plate, second distance rod 1022 penetrates through the bottom plate 1026 of the hinged seat 1024 simultaneously It is threaded on the bottom plate 1026 by the nut 1027 being arranged on the bottom plate 1026 with can be along axially adjustable position. Wherein, the second distance rod 1022 by the hinge hole 1025 on hinged seat 1024 with the first distance rod 1021 hingedly, in addition, passing through Nut 1027 and the second distance rod 1022 on bottom plate 1026 are threadedly engaged and can adjust the pedal preset force of brake pedal 100 And slack of pedal.But it's not limited to that for the disclosure, can also adjust stepping on for brake pedal 100 by other forms herein Plate preset force and slack of pedal, for example, the first distance rod 1021 or the second distance rod 1022 can be arranged to along axis It (such as can be the loop bar being mutually threadedly engaged and the casing being set on loop bar outer peripheral surface to stretching structure that is flexible and positioning Structure) by adjusting pedal preset force and slack of pedal in a manner of flexible.And this variant embodiment can be with Suitable for other following six kinds of embodiments.
Optionally, as shown in Figure 4 and Figure 5, second distance rod 1022 is arranged with close to the part of the bulb 1023 Seat 1028 is engaged, it is circumferentially spaced on the outer peripheral surface of the locking seat 1028 to be disposed with axially extending multiple locking protrusions 1029, First spring base 110 one end corresponding with the locking seat 1028 is formed with the locking with the locking protrusion 1029 cooperation Groove 1101.Here, locking seat 1028 can with the outer peripheral surface clearance fit of the second distance rod 1022, so as to avoid engaging Seat 1028 interferes the second distance rod 1022 with movement caused by the change in location of brake pedal 100 and the first distance rod 1021. As described above, can by the locking protrusion and the engaging of the locking groove 1101 of the first spring base 110 that engage seat 1028 The second distance rod 1022 and the first elastic component 103 are connected by ground.But it's not limited to that for the disclosure, 102 He of thrust structure Fit form between first elastic component 103 can use other reasonable structures.
Optionally, which further includes the control for controlling the working condition of the assist motor 101 The sensor 109 of device 108 and the revolving speed for detecting the assist motor 101.Wherein sensor 109 can be set in power-assisted On the output shaft 1011 of motor 101, or as shown in Figure 1, the sensor 109 can be set in gear shaft 1061 back in institute It states the end of output shaft 1011 and the sensor 109 can integrate on the controller 108 and be electrically connected to controller 108.Wherein, the assist motor 101, planet gear reducing mechanism 107 can be located at the side of the gear and rack teeth mechanism 106, The sensor 109 and controller 108 are located at the other side of gear and rack teeth mechanism 106, so that brake pedal simulator Structure arrangement is more reasonable.By structure as described above, in driver's brake pedal 100, thrust structure 102 is driven First elastic component 103 and the second elastic component 104 axially simultaneously compress, and thrust structure 102 is by the first elastic component 103 and second The opposition that cooperation provides jointly of elastic component 104, and when the braking that this opposition acts on brake pedal 100 is stepped on When plate power reaches preset value, the control starting assist motor 101 of controller 108 makes its output torque pass sequentially through planetary gear deceleration Mechanism 107 and gear and rack teeth mechanism 106 are transmitted to the first elastic component 103 and the second elastic component 104 and are brake pedal 100 and to push away Power structure 102 provides power-assisted and further compresses the first elastic component 103 and the second elastic component 104, so that brake pedal 100 and pushing away 102 further occurrence change in displacement of power structure, and since gear and rack teeth mechanism 106 is born by the first elastic component 103 and second A part of opposition that elastic component 104 applies, the opposition being subject to thus, it is possible to reduce thrust structure 102, so that Brake pedal 100 obtains suitable brake pedal force, so as to simulate the pedal force and pedal travel of brake pedal 100 Target value.Wherein, sensor 109 is used for the revolving speed of real-time detection assist motor 101 and can feed back controller 108 in real time Can monitor the pedal travel of brake pedal 100 in real time, thus, it is possible to improve the reliable operation of brake pedal simulator Property.
Optionally, as shown in fig. 6, the brake pedal simulator includes shell 120, which includes the assembly Portion 105, the first shell portion 1201 for accommodating the first elastic component 103 and the second elastic component 104, for accommodating assist motor 101 and planet gear reducing mechanism 107 etc. second shell portion 1202 and for accommodating controller 108 and sensor 109 Third housing section 1203, wherein the end abutment of the second elastic component 104 is in the inner end wall in first shell portion 1201, thrust structure 102 are exposed to first shell portion 1201 and department of assembly 105.The wherein department of assembly 105, first shell portion 1201, second Housing section 1202 and third housing section 1203 are interconnected.First shell portion 1201, second shell portion 1202 and third shell Portion 1203 can be assembled integrally by fasteners such as bolts, and second shell portion 1202 and third housing section 1203 can positions In the opposite side in first shell portion 1201.In addition, department of assembly 105 can be assemblied in first shell portion 1201, or can also be with It is integrally formed with first shell portion 1201.The department of assembly 105 can be assembled on vehicle body by the fasteners such as bolt 1051, this When brake pedal 100 be exposed in driver's cabin, and thrust structure 102 selectively can partially be exposed to according to the actual situation and drive Room is sailed, in order to operate.In addition, the portion perimeter for covering the second distance rod 1022 can be set in department of assembly 105 The dust cover 1204 in face is to play sealing and dust-proof effect.By structure as described above brake pedal simulator is had Characteristics of compact layout and the effect for realizing modularized design.But it's not limited to that for the disclosure, can be according to brake pedal simulator Arragement construction carrys out the structure of reasonable design shell 120.
Above content combination Fig. 1 to Fig. 6 describes the structure of the brake pedal simulator in first embodiment, is not taking off From under present inventive concept, feature such as brake pedal structure, the first distance rod, the second distance rod in first embodiment etc. is equal It can be applied in following other embodiments, referring to Fig. 7 to Figure 10 for according to disclosure second embodiment Brake pedal simulator is described in detail, and transmission matching mechanism in the present embodiment is same as the first embodiment Gear and rack teeth mechanism.
As shown in Figure 7 and Figure 8, according to the brake pedal simulator of disclosure second embodiment include brake pedal 200, Assist motor 201, the department of assembly 205 for being assembled on vehicle body, axially spaced apart two sides in the department of assembly 205 First elastic component 203 and the second elastic component 204, the tooth between first elastic component 203 and second elastic component 204 Wheel rackwork 206 is articulated with the brake pedal 200 and cooperates with first elastic component 203 can drive described the One elastic component 203 and second elastic component 204 are simultaneously along the thrust structure 202 of the axial stretching, first elastic component 203 and second elastic component 204 jointly with combined into the brake pedal 200 provide pedal preset force, the assist motor 201 output shaft 2011 passes through the gear and rack teeth mechanism 206 and first elastic component 203 and second elastic component 204 Cooperation, power-assisted can be provided for the driving of the thrust structure 202.
As a result, in driver's brake pedal 200, the driving of thrust structure 202 first elastic component 203 and the second elasticity Part 204 axially simultaneously compresses, and thrust structure 202 is cooperated offer by the first elastic component 203 and the second elastic component 204 jointly Opposition, and when the brake pedal force that this opposition acts on brake pedal 200 reaches preset value, starting helps Force motor 201 makes its output torque be transmitted to the first elastic component 203 and the second elastic component 204 by gear and rack teeth mechanism 206 It and is that brake pedal 200 and thrust structure 202 provide power-assisted and make further the second elastic component of compression of gear and rack teeth mechanism 206 Drive the axially compressed direction of the first elastic component 203 mobile during 204, so that brake pedal 200 and thrust structure 202 further occurrence change in displacement, and since gear and rack teeth mechanism 206 is born by the first elastic component 203 and the second elastic component A part of opposition of 204 common cooperations and offer, the opposition being subject to thus, it is possible to reduce thrust structure 202, So that brake pedal 200 obtains suitable brake pedal force, so as to simulate the pedal force and pedal row of brake pedal 200 The target value of journey.Here, the pedal force and pedal travel of the first elastic component 203 and the second elastic component 204 as brake pedal 200 Analog element, when the component malfunctions such as assist motor 201, gear and rack teeth mechanism 206 or the second elastic component 204 can not be just Often when work, providing based-pedal power also for brake pedal 200 by the first elastic component 203 can be realized brake pedal 200 Brake feel, so as to continue implement braking, keep braking function, thus improve brake pedal simulator safety Energy.In addition, when driver discharge brake pedal 200 when, 201 power loss of assist motor and make the first elastic component 203 and the second bullet Property part 204 realizes self-return by the elastic-restoring force of itself.Simulation is realized by brake control method as described above The characteristic of brake pedal 200, and replaced by the cooperation of assist motor 201 and gear and rack teeth mechanism 206 existing hydraulic Brake component and brake pedal simulator is not only simple in structure and not will receive the shadow of hydraulic many factors in such as existing Ring, thus have operational stability is good, brake pedal response rapidly and other effects.In addition, though being driven in the present embodiment Matching mechanism uses gear and rack teeth mechanism, but it's not limited to that for the disclosure, and the transmission matching mechanism can use other Reasonable arragement construction.
In the present embodiment, the point being different from the first embodiment essentially consists in the first elastic component 203 and the second elasticity Part 204 is located at the two sides of department of assembly 205, wherein department of assembly 205 can be assemblied in point between vehicle engine compartments and driver's cabin At boundary, with brake pedal simulator by department of assembly 205 be assembled to vehicle body when, positioned at the first of 205 side of department of assembly Elastic component 203 can be exposed to driver's cabin, and the second elastic component 204 for being located at 205 other side of department of assembly can be located at engine In cabin, thus, it is possible to reduce occupied space of the brake pedal simulator in enging cabin.But it's not limited to that for the disclosure, institute State installation site of the department of assembly 205 on vehicle body can according to the actual situation come specifically arrange, so as to suitable for it is a variety of not In isostructural vehicle.In addition, having in the following contents for present embodiment and other differences in first embodiment Body description.
In addition, though the first elastic component 203 and 204 arranged for interval of the second elastic component be in the two sides of department of assembly 205, but for It realizes the function of moving synchronously of the first elastic component 203 and the second elastic component 204, can be realized by a variety of arragement constructions. For example, simplest mode is between the first elastic component 203 and the second elastic component 204 by the way that connector is arranged to realize the two It moves synchronously.
In the present embodiment, as shown in Figure 7 to 9, optionally, the gear and rack teeth mechanism 206 includes gear shaft 2061 and rack gear 2062, the gear shaft 2061 connect with the output shaft 2011 of the assist motor 201 and be provided with it is described The power-assisted gear 2063 that rack gear 2062 engages, the first end of the rack gear 2062 are connected to first elastic component 203, the tooth The second end of item 2062 abuts or is connected to second elastic component 204.Here, rack gear 2062 can be by for installing first Each mounting base of elastic component 203 and the second elastic component 204 is connect with the first elastic component 203 and the second elastic component 204.But for The arrangement disclosure between rack gear 2062 and the first elastic component 203 and the second elastic component 204 is not particularly limited, only Rack gear 2062 is enabled to receive the power output from assist motor 201 and engaging with power-assisted gear 2063, to make Rack gear 2062 is able to drive the first elastic component 203 and the axially compressed direction of the second elastic component 204 is mobile and realize the The synchronous compression of one elastic component 203 and the second elastic component 204.In the present embodiment, as shown in fig. 7, rack gear 2062 One end can connect in the first elastic component 203, and the other end is connected to the second elastic component 204.
Optionally, the output shaft 2011 of the assist motor 201 is connect by transmission mechanism with the gear shaft 2061.? This, transmission mechanism can use the structure of various reasonable, with can be by the output torque of assist motor 201 with transmission ratio appropriate It passes on the gear shaft 2061 of gear and rack teeth mechanism 206, so that rack gear 2062 reliably drives the first elastic component 203 and second compression of elastic component 204 and the quickly and accurately pedal force and pedal travel of simulating brake pedal 200.
Optionally, the transmission mechanism includes the deceleration mechanism connecting with the output shaft 2011 of the assist motor 201, institute Gear shaft 2061 is stated to connect with the output end of the deceleration mechanism.Here, deceleration mechanism can use various structures, such as can be with Using turbine worm reducer structure, gear pair deceleration mechanism or planet gear reducing mechanism same as the first embodiment, thus It can be improved transmission efficiency.In the present embodiment, optionally, the deceleration mechanism is gear pair deceleration mechanism 207, the gear Secondary deceleration mechanism 207 include the first gear 2071 being connect by transmission shaft 2073 with the output shaft 2011 and with this first The second gear 2072 that gear 2071 engages, the second gear 2072 are arranged on the gear shaft 2061.Power-assisted electricity as a result, The output torque of machine 201 passes sequentially through first gear 2071, second gear 2072 and power-assisted gear 2063 and passes to rack gear 2062, So that rack gear 2062 drives the first elastic component 203 and the second elastic component 204 synchronously to realize compression, stepped on so as to simulating brake The pedal force and pedal travel of plate 200.By gear pair deceleration as described above, mechanism enables to brake pedal simulator knot Structure is simple and has the effect of easy to maintain.In above structure, although first gear 2071 and second gear 2072 use directly Gear, but it's not limited to that for the disclosure, for example, above-mentioned first gear 2071 and second gear 2072 can be matched using bevel gear Close structure.
Optionally, the transmission shaft 2073 is parallel with the gear shaft 2061, the assist motor 201 and the speed reducer Structure is arranged in the two sides in the radial direction of the rack gear 2062 so that the arragement construction of brake pedal simulator it is more compact and Rationalize.But it's not limited to that for the disclosure, the reasonable design assist motor according to the type of used deceleration mechanism 201, the arrangement between deceleration mechanism and gear and rack teeth mechanism 206.
Optionally, the assist motor 201, the deceleration mechanism and the gear and rack teeth mechanism 206 are located at the dress Correspond to the side of second elastic component 204 with portion 205, spiral shell is thus utilized by department of assembly 205 in brake pedal simulator The fasteners such as bolt 2051 are assembled in the state of vehicle body, and assist motor 201, deceleration mechanism and gear and rack teeth mechanism 206 are being sent out It is reasonably arranged in the confined space in motivation cabin, to achieve the effect that compact-sized and shared installation space small volume.But this Open it's not limited to that, and the position relationship between above-mentioned component can neatly occur in the case where not conflicting Variation, and these variations are all fallen in the interest field of the disclosure.
Optionally, first elastic component 203 and second elastic component 204 are helical spring.Thus, it is possible to by pushing away The driving force that power structure 202 and/or assist motor 201 act on makes quick and sensitive reaction and stretches.But this is not limited The scope of the present disclosure can guarantee brake pedal 200,202 assist motor 201 of thrust structure and gear and rack teeth mechanism 206 Cooperation is come in the case where driving the first elastic component 203 and the second elastic component 204 flexible, first elastic component 203 and the second bullet Property part 204 can use various reasonable structure.
Optionally, the brake pedal simulator includes the first spring base 210 for installing first elastic component 203 And the second spring seat 211 for installing second elastic component 204, one end of first spring base 210 and the thrust Structure 202 cooperates, and the other end of first spring base 210 is connected to the second spring seat 211, and first spring The middle part of seat 210 is formed with the rack gear 2062 of the gear and rack teeth mechanism 206.Specifically, as shown in Figure 8 and Figure 9, described first Spring base 210 includes axially disposed the first flange and the first extension rod, and first flange is matched with the thrust structure 202 Merging can be mounted on described first along the axial movement, first elastic component 203 together with first extension rod and prolong On boom and one end of first elastic component 203 is connected to first flange, and the other end and limit are in the department of assembly 205 Abutment flange 2053 abut, first extension rod is through the abutment flange 2053 and the middle part of first extension rod is formed There is the rack gear 2062 to engage with the power-assisted gear 2063, wherein the rack gear 2062 is located at close second bullet of department of assembly The side of property part 204, the second spring seat 211 include the second flange contacted with the end of first extension rod and from The second extension rod that second flange extends, second elastic component 204 is mounted on second extension rod and second bullet One end of property part 204 is connected to second flange, and the other end can be connected to the shell 220 of the brake pedal simulator It is interior.The driving that first elastic component 203 and the second elastic component 204 pass through thrust structure 202 and/or gear and rack teeth mechanism 206 as a result, Under can reliably and steadily realize synchronization telescope.But it's not limited to that for the disclosure, for the first spring base 210 and the second bullet The specific structure of spring abutment 211 can carry out reasonable design according to the actual situation, respectively accordingly support first as long as can be realized 204 synchronization telescope of the first elastic component 203 and the second elastic component is enabled to while elastic component 203 and the second elastic component 204 Function.
Optionally, as shown in Figure 7 to 10, the thrust structure 202 includes being articulated with the first of the brake pedal 200 Distance rod 2021 and the second distance rod 2022 for being articulated with first distance rod 2021, second distance rod 2022 are formed as bulb Bolt, the bulb 2023 of second distance rod 2022 and 210 cambered surface of the first spring base cooperate.Optionally, the bulb 2023 radius of curvature is less than the radius of curvature that first spring base 210 corresponds to the arc mating surface of the bulb 2023. Optionally, the hinged end of second distance rod 2022 is provided with the hinged seat 2024 for the U-shaped being threadedly coupled with the hinged end, should Hinge hole 2025 is respectively formed on the both side plate of hinged seat 2024, second distance rod 2022 penetrates through the hinged seat 2024 Bottom plate 2026 and be threaded on the bottom plate 2026 by the nut 2027 that is arranged on the bottom plate 2026 with being capable of edge Axially adjustable position.For the structure feature and work of thrust structure 202 in structure feature and first embodiment as described above It is all the same with effect, herein in order to avoid repeating, omit the detailed description to the specific function and effect of above structure feature.
Optionally, the brake pedal simulator further includes the control for controlling the working condition of the assist motor 201 The sensor 209 of device 208 processed and the revolving speed for detecting the assist motor 201.Wherein, the assist motor 201, gear Secondary deceleration mechanism 207 can be located at the side of the gear and rack teeth mechanism 206, and the sensor 209 and controller 208 are located at tooth The other side of rackwork 206 is taken turns, so that the structure arrangement of brake pedal simulator is more reasonable.By as described above Structure, in driver's brake pedal 200, thrust structure 202 drives the first elastic component 203 and the second elastic component 204 same When it is axially compressed, thrust structure 202 is by the first elastic component 203 and the second elastic component 204 reversed work that cooperation provides jointly Firmly, and when the brake pedal force that this opposition acts on brake pedal 200 reaches preset value, controller 208 is controlled System starting assist motor 201 makes its output torque pass sequentially through gear pair deceleration mechanism 207 and the transmitting of gear and rack teeth mechanism 206 It is that brake pedal 200 and thrust structure 202 provide power-assisted to the first elastic component 203 and the second elastic component 204, thus gear teeth The rack gear 2062 of mechanism 206 drives the axially compressed side of the first elastic component 203 during compressing the second elastic component 104 To movement, so that 202 further occurrence change in displacement of brake pedal 200 and thrust structure, and due to gear and rack teeth mechanism 206 Bear a part of opposition applied by the second elastic component 204, the reversed work being subject to thus, it is possible to reduce thrust structure 202 Firmly, so that brake pedal 200 obtains suitable brake pedal force, so as to simulate brake pedal 200 pedal force and The target value of pedal travel.Wherein, sensor 209 is used for the revolving speed of real-time detection assist motor 201 and can feed back in real time It can monitor the pedal travel of brake pedal 200 in real time to controller 208, thus, it is possible to improve brake pedal simulator Functional reliability.
Herein optionally, as shown in figure 11, the brake pedal simulator includes shell 220, which includes described Department of assembly 205 and first shell portion 2201 for accommodating the gear and rack teeth mechanism 206, for accommodating the assist motor 201 second shell portion 2202 and third housing section 2203 for accommodating second elastic component 204, the department of assembly 205, first shell portion 2201, second shell portion 2202 and third housing section 2203 are interconnected.Wherein the second elastic component 204 End abutment in the inner end wall of third housing section 2203, the opening that first shell portion 2201 has side open, the assembly Portion 205 and the first shell portion 2201 cooperate.Wherein, first shell portion 2201, second shell portion 2202 and third housing section 2203 can be assembled integrally by fasteners such as bolts, and second shell portion 2202 and third housing section 2203 can be located at The opposite side in first shell portion 2201.But it's not limited to that for the disclosure, and the shell 220 can also use other knots appropriate Structure.Furthermore it is possible to which the open side in first shell portion 2201 has been provided projectingly along the spaced apart first locking platform of short transverse 2205 and second engage platform 2206, are formed in the department of assembly 205 towards open side restriction protrusion 2052 outstanding, are led to It crosses and realizes the mode that restriction protrusion 2052 is embedded into the first locking platform 2205 and the second locking platform 2206 by department of assembly 205 quickly It navigates in first shell portion 2201, to realize quick assembling.Make brake pedal simulator by structure as described above Have the effect of characteristics of compact layout and realizes modularized design.
Above describe the brake pedal simulators that disclosure second embodiment provides, wherein essentially describing and first The different feature of embodiment, the feature of two embodiments can be replaced mutually, combine in the case of no contradiction, to this Open do not do to this excessively repeats.
It is carried out specifically referring to brake pedal simulator of the Figure 12 to Figure 14 for the third embodiment of the disclosure It is bright.
It as shown in figure 12, include brake pedal 300, power-assisted according to the brake pedal simulator of disclosure third embodiment Motor 301, the department of assembly 305 for being assembled on vehicle body, axially spaced apart two sides in the department of assembly 305 and mutually Connection the first elastic component 303 and the second elastic component 304, be articulated with the brake pedal 300 and with first elastic component 303 Cooperation is can drive first elastic component 303 and second elastic component 304 simultaneously along the thrust knot of the axial stretching Structure 302, first elastic component 303 and second elastic component 304 are jointly with combined into the brake pedal 300 offer pedal The output shaft 3011 of preset force, the assist motor 301 is cooperated by screw mechanism 306 and second elastic component 304, with energy Driving enough for the thrust structure 302 provides power-assisted.
As a result, in driver's brake pedal 300, the driving of thrust structure 302 first elastic component 303 and the second elasticity Part 304 axially simultaneously compresses, and thrust structure 302 is cooperated offer by the first elastic component 303 and the second elastic component 304 jointly Opposition, and when the brake pedal force that this opposition acts on brake pedal 300 reaches preset value, starting helps Force motor 301 makes that its output torque is transmitted to the second elastic component 304 by screw mechanism 306 and the first elastic component 303 is Brake pedal 300 and thrust structure 302 provide power-assisted, and screw mechanism 306 is during further the second elastic component 304 of compression Drive the axial compressed direction of the first elastic component 303 mobile, so that 302 further occurrence of brake pedal 300 and thrust structure Change in displacement, and due to screw mechanism 306 bear from the first elastic component 303 and the second elastic component 304 it is common with and provide A part of opposition, the opposition being subject to thus, it is possible to reduce thrust structure 302, so that brake pedal 300 obtains Suitable brake pedal force is obtained, so as to simulate the pedal force of brake pedal 300 and the target value of pedal travel.Here, First elastic component 303 and the second elastic component 304 are as the pedal force of brake pedal 300 and the analog element of pedal travel, when helping The component malfunctions such as force motor 301, screw mechanism 306 or the second elastic component 304 and when can not work normally, pass through the first bullet Property part 303 for brake pedal 300 provides based-pedal power and also can be realized the brake feel of brake pedal 300, so as to Continue to implement braking, keep braking function, thus improves the security performance of brake pedal simulator.In addition, when driver discharges When brake pedal 300,301 power loss of assist motor and make the first elastic component 303 and the second elastic component 304 by itself elasticity return It answers power and realizes self-return.The characteristic of simulating brake pedal 300 is realized by brake control method as described above, and Existing hydraulic braking component is replaced by the cooperation of assist motor 301 and screw mechanism 306 simulates brake pedal Device is not only simple in structure and not will receive the influence of hydraulic many factors in such as existing, thus have operational stability it is good, Brake pedal responds rapid and other effects.In addition, though transmission matching mechanism uses and the first embodiment party in the present embodiment The different screw mechanism 306 of gear and rack teeth mechanism 106,206 in formula and second embodiment, but the disclosure is not limited to This, the transmission matching mechanism can use other reasonable arragement constructions.
In addition, the first elastic component 303 and the second elastic component 304 be located at the two sides of the department of assembly 305 technical characteristic and Corresponding technical characteristic and function and effect are identical in second embodiment for function and effect, herein in order to avoid repeating, omit It is described in detail.
Optionally, the screw mechanism 306 between first elastic component 303 and second elastic component 304 and It is arranged in the side that the department of assembly 305 corresponds to second elastic component 304.Thus pass through assembly in brake pedal simulator In the state that portion 305 is assembled to vehicle body using the fasteners such as bolt 3051, assist motor 301, deceleration mechanism and screw mechanism 306 reasonably arrange in the confined space of enging cabin, to reach the effect of compact-sized and shared installation space small volume Fruit.But it's not limited to that for the disclosure, and the position relationship between above-mentioned component can spirit in the case where not conflicting It changes livingly, and these variations are all fallen in the interest field of the disclosure.For example, the screw mechanism 306 can be arranged In the second elastic component 304 back in the end side of the first elastic component 303, and screw mechanism 306 is matched with the second elastic component 304 It closes and the axially compressed direction of the first elastic component 303 can be driven to move during driving the compression of the second elastic component 304 It is dynamic.Here, specifically, in the case that the first elastic component 303 is connected with 304 opposite end of the second elastic component by connector, spiral shell The one end fits corresponding to the first elastic component 303 of mechanism 306 and the second elastic component 304 are revolved, thereby, it is possible to realize above-mentioned function Energy.
Optionally, first elastic component 303 and second elastic component 304 are helical spring.Thus, it is possible to by pushing away The driving force that power structure 302 and/or assist motor 301 act on makes quick and sensitive reaction and stretches.But this is not limited The scope of the present disclosure, in the cooperation that can guarantee brake pedal 300, thrust structure 302, assist motor 301 and screw mechanism 306 In the case where driving the first elastic component 303 and the second elastic component 304 flexible, first elastic component 303 and the second elastic component 304 can use the structure of various reasonable.
Optionally, as shown in figure 12, first elastic component 303 passes through the first spring base 310 and the thrust structure 302 Cooperation, second elastic component 304 are cooperated by second spring seat 311 and the screw mechanism 306, first spring base 310 and the second spring seat 311 be connected with each other.Specifically, first spring base 310 is convex including axially disposed first Edge 3101 and the first extension rod 3102, first flange 3101 cooperate with the thrust structure 302, first elastic component 303 are mounted on first extension rod 3102 and one end of first elastic component 303 is connected to first flange 3101, separately One end is abutted with abutment flange 3052 of the limit in the department of assembly 305, and first extension rod 3102 penetrates through the abutting It flange 3052 and can be axially moveable together relative to the department of assembly 305 with first flange 3101, second bullet Spring abutment 311 includes axially disposed the second flange 3111 and the second extension rod 3112, and second elastic component 304 is mounted on institute It states on the second extension rod 3112 and one end of second elastic component 304 is connected to second flange 3111, the other end can support It is connected in the shell 320 of the brake pedal simulator, first extension rod 3102 is connect with second flange 3111.By The output torque of assist motor 301 is passed to screw mechanism 306 when assist motor 301 starts by this, and screw mechanism 306 The second elastic component 304 is transmitted drive force to, and the first elastic component 303 is transferred to by the second elastic component 304 again, thus spiral Mechanism 306 is able to drive the axially compressed direction of the first elastic component 303 during driving the compression of the second elastic component 304 It is mobile, so as to reliably and steadily realize the synchronization telescope of the first elastic component 303 and the second elastic component 304.But the disclosure It's not limited to that, and it is reasonable that the specific structure of the first spring base 310 and second spring seat 311 can be come according to the actual situation Ground design, if can be realized respectively accordingly support the first elastic component 303 with while the second elastic component 304 by mutually interconnecting Connect the function so that 304 synchronization telescope of the first elastic component 303 and the second elastic component.
Optionally, as shown in figure 12, the end that first extension rod 3102 corresponds to second flange 3111 is arranged There is the pedestal connecting by multiple connecting rods 312 with second flange 3111, which includes mobile disk 3103 and fixed disk 3104, the mobile disk 3103 is connect with the end of first extension rod 3102, and the fixed disk 3104 is located at described It between mobile disk 3103 and first elastic component 303 and is mounted on the abutment flange 3052, first elastic component 303 The other end be connected to the fixed disk 3104, multiple connecting rods 312, which penetrate through, is simultaneously connected to the fixed disk 3104, institute State mobile disk 3103 and second flange 3111 and can be in the fixed disk 3104 along axially adjustable position.Wherein, It could be formed with multiple connecting rods 312 on the second flange 3111 of second spring seat 311, and in the first spring base 310 and institute State and be formed with through-hole on the corresponding position of connecting rod 312, it can pedestal mobile disk 3103 and fixed disk 3104 it is respective right It is formed with through-hole on the position answered, so that the modes such as being connected through a screw thread is installed to mobile disk 3103 and fixed disk for connecting rod 312 The connection of the first spring base 310 and second spring seat 311 is realized in 3104 corresponding through-holes, wherein connecting rod 312 can Along axially adjustable position in the through-hole of fixed disk 3104, as a result, in the first extension rod 3102 of the first spring base 310 in thrust Mobile disk 3103, connecting rod 312 and the two the second flanges 3111 are driven during being axially moveable under the driving of structure 302 (i.e. second spring seat 311) moves simultaneously along axial, and then it is flexible that the second elastic component 304 can be driven to realize.In this structure Under, screw mechanism 306 can be located at department of assembly between the first spring base 310 and second spring seat 311, specifically Position between 305 and the second flange 3111 of second spring seat 311.In addition, if connecting the using the modes such as being threadedly coupled It, can be by adjusting the position of the coupling part of connecting rod and through-hole under the above structure of one spring base 310 and second spring seat 311 To adjust the pedal preset force and slack of pedal of brake pedal 300.But it's not limited to that for the disclosure, can also be by adopting The first spring base 310 and second spring seat 311 are connected in other ways, are not elaborated herein.
Optionally, the output shaft 3011 of the assist motor 301 is connect by transmission mechanism with the screw mechanism 306. Here, transmission mechanism can use the structure of various reasonable, with can be by the output torque of assist motor 301 with transmission appropriate Than passing to screw mechanism 306, so that the process that screw mechanism 306 reliably drives the second elastic component 304 to compress It is middle drive the axially compressed direction of the first elastic component 303 mobile, and then quickly and accurately simulating brake pedal 300 is stepped on Plate power and pedal travel.
Optionally, the transmission mechanism include the deceleration mechanism being connect with the output shaft 3011 of the assist motor 301, with The transmission gear 313 of the output end connection of the deceleration mechanism, the screw mechanism 306 includes matching with second elastic component 304 It the power-assisted screw rod 3061 of conjunction and is mounted on the outer peripheral surface of the power-assisted screw rod 3061 and is formed with and 3061 spiral shell of power-assisted screw rod The power-assisted gear 3062 of the internal screw thread of line cooperation, the transmission gear 313 are nibbled by idle pulley 314 with the power-assisted gear 3062 It closes.Here, power-assisted screw rod 3061 can be directly connected to the form of second spring seat 311 and the second elastic component 304 cooperates, by This, the output torque of assist motor 301 pass sequentially through deceleration mechanism, transmission gear 313, power-assisted gear 3062 and pass to power-assisted Screw rod 3061, and the driving force of power-assisted screw rod 3061 passes to the second elastic component 304, and power suffered by the second elastic component 304 is logical It crosses connecting rod 312 and the first spring base 310 passes to the first elastic component 303, so that power-assisted screw rod 306 reliably drives the second elasticity Part 304 drives the axially compressed direction of the first elastic component 303 mobile during compressing.Here, deceleration mechanism can adopt With various structures, such as turbine worm reducer structure, gear pair deceleration mechanism or same as the first embodiment can be used Planet gear reducing mechanism, so as to improve transmission efficiency.
Optionally, the assist motor 301, the deceleration mechanism and the screw mechanism 306 are located at the department of assembly 305 correspond to the side of second elastic component 304.Thus bolt etc. is utilized by department of assembly 305 in brake pedal simulator Fastener 3051 is assembled in the state of vehicle body, and assist motor 301, deceleration mechanism and screw mechanism 206 are in enging cabin It is reasonably arranged in the confined space, to achieve the effect that compact-sized and shared installation space small volume.But the disclosure is not It is defined in this, the position relationship between above-mentioned component can neatly change in the case where not conflicting, and These variations are all fallen in the interest field of the disclosure.
Optionally, the deceleration mechanism is planet gear reducing mechanism 307, in the planet gear reducing mechanism 307, sun gear 3071 connect with the output shaft 3011 of the assist motor 301, planet carrier 3072 as the deceleration mechanism output end and with The wheel axis connection of the transmission gear 313, gear ring 3073 are fixed in the shell 320 of the brake pedal simulator.In addition, row The planetary gear 3074 engaged with sun gear 3071 and gear ring 3073 is additionally provided in star wheel reducer structure 307, planetary gear 3074 It is provided centrally with planet carrier 3072.Using the above-mentioned technical characteristic of planet gear reducing mechanism 307 and effect effect in present embodiment Fruit in first embodiment use planet gear reducing mechanism 107 technical characteristic and function and effect it is identical, herein in order to avoid It repeats to omit and it is illustrated.
Optionally, as shown in figure 13, the thrust structure 302 includes being articulated with the first thrust of the brake pedal 300 Bar 3021 and the second distance rod 3022 for being articulated with first distance rod 3021, second distance rod 3022 are formed as bulb spiral shell Bolt, the bulb 3023 of second distance rod 3022 and 310 cambered surface of the first spring base cooperate.Optionally, the bulb 3023 radius of curvature is less than the radius of curvature that first spring base 310 corresponds to the arc mating surface of the bulb 3023. Optionally, the hinged end of second distance rod 3022 is provided with the hinged seat 3024 of U-shaped, on the both side plate of the hinged seat 3024 It is respectively formed with hinge hole 3025, second distance rod 3022 penetrates through the bottom plate 3026 of the hinged seat 3024 and passes through setting It is threaded on the bottom plate 3026 in the nut 3027 on the bottom plate 3026 with can be along axially adjustable position.As described above Structure feature and first embodiment in it is all the same for the structure feature and function and effect of thrust structure 102, herein in order to It avoids repeating, omits the detailed description to the specific function and effect of above structure feature.
Optionally, the brake pedal simulator further includes the control for controlling the working condition of the assist motor 301 The sensor 309 of device 308 processed and the revolving speed for detecting the assist motor 301.Wherein sensor 309, which can be set, is helping On the output shaft of force motor 301, which is electrically connected to controller 308.As a result, in driver's brake pedal 300 When, thrust structure 302 drives the first elastic component 303 and the second elastic component 304 axially simultaneously to compress, thrust structure 302 by First elastic component 303 and the second opposition that cooperation provides jointly of elastic component 304, and when this opposition acts on When the brake pedal force of brake pedal 300 reaches preset value, the control starting assist motor 301 of controller 308 turns its output It is system that square, which is transmitted to the second elastic component 304 and the first elastic component 303 by planet gear reducing mechanism 307 and screw mechanism 306, Dynamic pedal 300 and thrust structure 302 provide power-assisted, band during further the second elastic component 304 of compression of screw mechanism 306 The axial compressed direction of dynamic first elastic component 303 is mobile, so that 302 further occurrence position of brake pedal 300 and thrust structure Move variation, and since screw mechanism 306 is born from cooperation and the offer jointly of the first elastic component 303 and the second elastic component 304 A part of opposition, the opposition being subject to thus, it is possible to reduce thrust structure 302, so that brake pedal 300 obtains Suitable brake pedal force, so as to simulate the pedal force of brake pedal 300 and the target value of pedal travel.Wherein, it passes Sensor 309 is used for the revolving speed of real-time detection assist motor 301 and can feed back controller 308 in real time that can supervise in real time The pedal travel for measuring brake pedal 300, thus, it is possible to improve the functional reliability of brake pedal simulator.
In addition, herein optionally, as shown in figure 14, the brake pedal simulator includes shell 320, the shell 320 packet Include the department of assembly 305 and for accommodating the screw mechanism 306 and section transmission mechanism (transmission gear 313 and idle pulley 314) first shell portion 3201, the second shell portion 3202 for accommodating the assist motor 301 and described for accommodating The third housing section 3203 of second elastic component 304, wherein the end abutment of the second elastic component 304 is in third housing section 3203 End wall.Wherein, the department of assembly 305, first shell portion 3201, second shell portion 3202 and the interconnection of 3203 phase of third housing section It is logical.First shell portion 3201, second shell portion 3202 and third housing section 3203 can be assembled into one by fasteners such as bolts Body.In addition, being could be formed in the first shell portion 3201 for providing lubricating oil to screw mechanism 306 and transmission mechanism Oil filler point.In addition, the department of assembly 305 can be assembled on vehicle body by the fasteners such as bolt 3051, brake pedal at this time 300 are exposed in driver's cabin, and thrust structure 302 and the first elastic component 303 selectively can partially reveal according to the actual situation For driver's cabin, in order to operate and make brake pedal simulator smaller in the shared installation space in enging cabin.Separately Outside, portion perimeter face for covering the second distance rod 3022 and the first elastic component 303 can be set in department of assembly 305 Dust cover 3204 is to play sealing and dust-proof effect.Make brake pedal simulator that there is arrangement by structure as described above Effect that is compact and realizing modularized design.But it's not limited to that for the disclosure, can be according to the arrangement of brake pedal simulator Structure carrys out the structure of reasonably shell 320.
Above content combination Figure 12 to Figure 14 describes the brake pedal simulator of disclosure third embodiment offer, In essentially describe the feature different from the first and second embodiments, the feature of three embodiments in the case of no contradiction It can be replaced mutually, combine, this disclosure does not do this and excessively repeats.
It is carried out specifically referring to brake pedal simulator of the Figure 15 to Figure 21 for the 4th embodiment of the disclosure It is bright.
It as shown in Figure 15 and Figure 16, include brake pedal according to the brake pedal simulator of the 4th embodiment of the disclosure 400, assist motor 401, the department of assembly 405 for being assembled on vehicle body, the side for being axially disposed in the department of assembly 405 and First elastic component 403 interconnected and the second elastic component 404, be articulated with the brake pedal 400 and with it is described first elasticity The cooperation of part 403 is can drive first elastic component 403 and second elastic component 404 pushing away along the axial stretching simultaneously Power structure 402, first elastic component 403 and second elastic component 404 are jointly with combined into the brake pedal 400 offer The output shaft 4011 of pedal preset force, the assist motor 401 is cooperated by screw mechanism 406 and second elastic component 404, Power-assisted can be provided for the driving of the thrust structure 402.Here, the first elastic component 403 and the second elastic component 404 are as system The pedal force of dynamic pedal 400 and the analog element of pedal travel, in the initial state (i.e. non-brake pedal 400 the case where Under), the first elastic component 403 and the second elastic component 404 are in compressive state to provide pedal preset force for brake pedal 400, Wherein the first elastic component 403 still is able to so that brake pedal 400 keeps normally stepping in the case where the second elastic component 404 fails Plate power, to improve the security performance of brake pedal simulator.
Specifically, in driver's brake pedal 400, thrust structure 402 drives the first elastic component 403 and the second bullet Property part 404 axially simultaneously compress, by the first elastic component 403 and the second elastic component 404, cooperation provides thrust structure 402 jointly Opposition, and when the brake pedal force that this opposition acts on brake pedal 400 reaches preset value, starting Assist motor 401 makes its output torque be transmitted to the second elastic component 404 and the first elastic component 403 by screw mechanism 406 Power-assisted is provided for brake pedal 400 and thrust structure 402, and screw mechanism 406 is in the mistake of further the second elastic component 404 of compression Drive the axially compressed direction of the first elastic component 403 mobile in journey, so that brake pedal 400 and thrust structure 402 into one Step is subjected to displacement variation, and since screw mechanism 406 bears provided by the first elastic component 403 and the second elastic component 404 one Part opposition, the opposition being subject to thus, it is possible to reduce thrust structure 402, so that brake pedal 400 is closed Suitable brake pedal force, so as to simulate the pedal force of brake pedal 400 and the target value of pedal travel.Here, when helping The component malfunctions such as force motor 401, screw mechanism 406 or the second elastic component 404 and when can not work normally, pass through the first bullet Property part 403 for brake pedal 400 provides based-pedal power and also can be realized the brake feel of brake pedal 400, so as to Continue to implement braking, keeps braking function.In addition, when driver discharge brake pedal 400 when, 401 power loss of assist motor and make It obtains the first elastic component 403 and the second elastic component 404 and self-return is realized by the elastic-restoring force of itself.By as described above Brake control method realizes the characteristic of simulating brake pedal 400, and matching by assist motor 401 and screw mechanism 406 It closes replacing existing hydraulic braking component and brake pedal simulator is not only simple in structure and not will receive as in existing The influence of hydraulic equal many factors, thus have operational stability is good, brake pedal response rapidly and other effects.In addition, though Transmission matching mechanism uses screw mechanism 406 in the present embodiment, but it's not limited to that for the disclosure, the transmission cooperation Mechanism can use other reasonable arragement constructions.
Optionally, first elastic component 403 and the second elastic component 404 are helical spring.Thus, it is possible to by thrust knot The driving force that structure 402 and/or assist motor 401 act on makes quick and sensitive reaction and stretches.But this does not limit this public affairs The range opened is driven that can guarantee the cooperation of brake pedal 400, thrust structure 402, assist motor 401 and screw mechanism 406 In the case that dynamic first elastic component 403 and the second elastic component 404 are flexible, first elastic component 403 and the second elastic component 404 can Using the structure of various reasonable.
Optionally, as shown in Figure 15 and Figure 16, first elastic component 403 passes through the first spring base 410 and the thrust Structure 402 cooperates, and first spring base 410 includes the first flange 415, which corresponds to the thrust structure 402 one end is formed with multiple connecting rods 412 along described axially projecting and circumferentially spaced arrangement, multiple connecting rods 412 with The thrust structure 402 cooperates, and a part of the screw mechanism 406 is located at first flange 415 and the thrust structure Position between 402.As a result, assist motor 401, screw mechanism 406 and the first elastic component 403 and the second elastic component Arragement construction between 404 is compact and is easy to implement modularized design.But it's not limited to that for the disclosure, the screw mechanism 406 can be arranged in the second elastic component 404 back in the end side of the first elastic component 403, and screw mechanism 406 and second Elastic component 404 cooperates and the first elastic component 403 can be driven to be pressed along axial direction during driving the compression of the second elastic component 404 The direction of contracting is mobile.Here, specifically, when the first elastic component 403 and 404 opposite end of the second elastic component pass through the structures such as mounting base In the case where connection, the one end fits corresponding to the first elastic component 403 of screw mechanism 406 and the second elastic component 404, in this feelings Under condition, the thrust structure 402 can be directly connected to the first spring base 410.Thereby, it is possible to convenience and it is easily achieved screw machine Structure 406 drives the axially compressed direction of the first elastic component 403 mobile function during compressing the second elastic component 404. In addition, the fit form of connecting rod 412 and thrust structure 402 for the first spring base 410 can use various structures, such as can It is realized in a manner of being connected through a screw thread.And by the way of being threadedly coupled, it can be by adjusting connecting rod 412 The position of part is threadedly coupled to adjust the pedal preset force and slack of pedal of brake pedal 400.But the disclosure is simultaneously unlimited Due to this, the first spring base 410 and thrust structure 402 can also be connected by using other modes.
Optionally, as shown in figure 16, second elastic component 404 passes through second spring seat 411 and first spring base 410 cooperate with the screw mechanism 406, first spring base 410 and the axially adjacent arrangement of the second spring seat 411, The second spring seat 411 includes the second flange 416, the power-assisted screw rod of the screw mechanism 406 by with first spring base To abut second flange 416, the both ends of first elastic component 403 are connected to described for 410 first flange connection First flange 415 and second flange 416, one end of second elastic component 404 are connected to second flange 416, separately One end can be connected in the shell 420 of the brake pedal simulator.Here, optionally, the first spring base 410 includes from institute The first extension rod that the first flange 415 axially extends is stated, the second spring seat 411 includes from 416 edge of the second flange The second axially extending extension rod, first elastic component 403 is mounted on first extension rod and first elastic component 403 One end be connected to first flange 415, the other end is connected to second flange 416, and second elastic component 404 is installed On second extension rod and one end of second elastic component 404 is connected to second flange 416, and the other end can abut In in the shell 420 of the brake pedal simulator.The power-assisted screw rod of screw mechanism 406 is driven by the first extension rod as a result, Second spring seat 411 drives the compression of the second elastic component 404, and the first elastic component 403 is also with the second elastic component 404 in the process Compression and axially compressed direction is mobile under the driving of thrust structure 402.But it's not limited to that for the disclosure, described The structure of first spring base 410 and second spring seat 411 can use other structures appropriate.The screw mechanism 406 can also To be arranged as the form for driving the first elastic component 403 and the second elastic component 404 to compress simultaneously.
Optionally, as shown in Figure 15 to Figure 20, the thrust structure 402 includes be articulated with the brake pedal 400 the One distance rod 4021 and the second distance rod 4022 that first distance rod 4021 is articulated with by hinged seat 4024, the hinged seat 4024 are formed as U-shaped seat, and hinge hole 4025, second distance rod 4022 are respectively formed on the both side plate of the hinged seat 4024 It penetrates through the bottom plate 4026 of the hinged seat 4024 and the nut 4027 by being arranged on the bottom plate 4026 is threaded in this With can be along axially adjustable position on bottom plate 4026.Wherein, the second distance rod 4022 passes through the hinge hole on hinged seat 4024 4025 and first distance rod 4021 it is hinged, in addition, being matched by the nut 4027 on bottom plate 4026 with 4022 screw thread of the second distance rod Close and can adjust the pedal preset force and slack of pedal of brake pedal 400.But it's not limited to that for the disclosure, herein may be used To adjust the pedal preset force and slack of pedal of brake pedal 400 by other forms, for example, can be by the first distance rod 4021 or second distance rod 4022 be arranged to stretching structure that is axially retractable and positioning and (such as can match for mutual screw thread The structure of the loop bar of conjunction and the casing being set on loop bar outer peripheral surface) by adjusting pedal preset force in a manner of flexible and stepping on Plate idle stroke.For another example, ground is referred to as described above, is used and is threadedly engaged by the connecting rod of thrust structure 402 and the first spring base 410 Form adjusts pedal preset force and slack of pedal to realize.And above-mentioned variant embodiment can be adapted for other six kinds of realities It applies in mode.
Optionally, as shown in Figures 17 to 19, second distance rod 4022 is formed as ball stud, the thrust structure 402 further include the butt joint 4028 connecting with the 4023 ball pair of bulb of second distance rod 4022, and with the connecting rod 412 Connection and push-plate 4029 with the butt joint 4028 cooperation, the screw mechanism 406 are arranged in the push-plate 4029 and described On position between first elastic component 403.Wherein, push-plate 4029 can be located on the through-hole inner peripheral surface of department of assembly 405, butt joint 4028 can be through push-plate 4029 and by the positioning of the fasteners such as nut, here, optionally, being formed on the push-plate 4029 useful In supplying the perforative through-hole of the butt joint 4028, it is formed in the butt joint 4028 and is connected to the push-plate 4029 close to described The U-shaped pressing plate 40281 of the side of butt joint 4028.As a result, after butt joint 4028 and push-plate 4029 are assembled and positioned, U-shaped pressure Plate 40281 abuts the side that push-plate 4029 corresponds to the second distance rod 4022, so as to pass through U-shaped pressing plate 40281 steadily Push that push-plate 4029 makes the first elastic component 403 connecting with the push-plate 4029 and is connected to first elastic component 403 Two elastic components 404 are axially compressed.When driver's brake pedal 400 brings it about change in displacement, the first distance rod 4021, the second distance rod 4022, butt joint 4028, push-plate 4029 are also subjected to displacement variation therewith, and pass through the second distance rod 4022 bulb 4023 and the ball pair of butt joint cooperate, and the second distance rod 4022 is enabled to adapt to angle change, prevent with it is right Movement interference phenomenon occurs for connector 4028.But it's not limited to that for the disclosure, herein also optionally, the bulb 4023 with dock First 4028 can cooperate for cambered surface, and the radius of curvature of bulb 4023 is less than the arc that butt joint 4028 corresponds to the bulb 4023 The radius of curvature of shape mating surface.Allow bulb 4023 and the butt joint 4028 of the second distance rod 4022 in the appropriate range as a result, Arc mating surface occur relative motion and make brake pedal 400, thrust structure 402, the first elastic component 403 and the second bullet Transmission process between property part 404 is more smooth.For another example, the second distance rod 4022 can be connected with butt joint 4028 using universal joint It connects form or is directly connected to the form of the end face of butt joint 4028 using the second distance rod 4022.It needs to illustrate herein It is that the fit structure of butt joint 4028 and push-plate 4029 is to be able to more reliably drive the first elastic component 403 and second Elastic component 404, and the case where can be realized above-mentioned purpose and in the case where not conflicting, it can be to thrust structure 402 Arragement construction suitably changes, and this change belongs in the interest field of the disclosure.
Optionally, the output shaft 4011 of the assist motor 401 is connect by transmission mechanism with the screw mechanism 406. Here, transmission mechanism can use the structure of various reasonable, with can be by the output torque of assist motor 401 with transmission appropriate Than passing to screw mechanism 406, so that the process that screw mechanism 406 reliably drives the second elastic component 404 to compress It is middle drive the axially compressed direction of the first elastic component 403 mobile, and then quickly and accurately simulating brake pedal 400 is stepped on Plate power and pedal travel.
Optionally, the transmission mechanism include the deceleration mechanism being connect with the output shaft 4011 of the assist motor 401, with The transmission gear 413 of the output end connection of the deceleration mechanism, the screw mechanism 406 includes matching with second elastic component 404 It the power-assisted screw rod 4061 of conjunction and is mounted on the outer peripheral surface of the power-assisted screw rod 4061 and is formed with and 4061 spiral shell of power-assisted screw rod The power-assisted gear 4062 of the internal screw thread of line cooperation, the transmission gear 413 are nibbled by idle pulley 414 with the power-assisted gear 4062 It closes.And the technical characteristic and technical effect for above-mentioned transmission mechanism and screw mechanism 406 are corresponding with third embodiment Transmission mechanism is identical with technical effect with the technical characteristic of screw mechanism 306, omits its description herein.
Optionally, the deceleration mechanism is planet gear reducing mechanism 407, in the planet gear reducing mechanism 407, sun gear 4071 connect with the output shaft 4011 of the assist motor 401, planet carrier 4072 as the deceleration mechanism output end and with The wheel axis connection of the transmission gear 413, gear ring 4073 are fixed in the shell 420 of the brake pedal simulator.In addition, row The planetary gear 4074 engaged with sun gear 4071 and gear ring 4073 is additionally provided in star wheel reducer structure 407, planetary gear 4074 It is provided centrally with planet carrier 4072.And using the above-mentioned technical characteristic of planet gear reducing mechanism 407 and effect in present embodiment Effect uses the technical characteristic of planet gear reducing mechanism 107,307 and function and effect identical with first and third embodiment, It is illustrated in order to avoid repeating to omit herein.
Optionally, the brake pedal simulator further includes the control for controlling the working condition of the assist motor 401 The sensor 409 of device 408 processed and the revolving speed for detecting the assist motor 401.Wherein sensor 409, which can be set, is helping On the output shaft of force motor 401, which is electrically connected to controller 408.As a result, in driver's brake pedal 400 When, thrust structure 402 drives the first elastic component 403 and the second elastic component 404 axially simultaneously to compress, thrust structure 402 by First elastic component 403 and the second opposition that cooperation provides jointly of elastic component 404, and when this opposition acts on When the brake pedal force of brake pedal 400 reaches preset value, the control starting assist motor 401 of controller 408 turns its output It is system that square, which is transmitted to the second elastic component 404 and the first elastic component 403 by planet gear reducing mechanism 407 and screw mechanism 406, Dynamic pedal 400 and thrust structure 402 provide power-assisted, band during further the second elastic component 404 of compression of screw mechanism 406 The axial compressed direction of dynamic first elastic component 403 is mobile, so that 402 further occurrence position of brake pedal 400 and thrust structure Move variation, and since screw mechanism 406 is born from cooperation and the offer jointly of the first elastic component 403 and the second elastic component 404 A part of opposition, the opposition being subject to thus, it is possible to reduce thrust structure 402, so that brake pedal 400 obtains Suitable brake pedal force, so as to simulate the pedal force of brake pedal 400 and the target value of pedal travel.Wherein, it passes Sensor 409 is used for the revolving speed of real-time detection assist motor 401 and can feed back controller 408 in real time that can supervise in real time The pedal travel for measuring brake pedal 400, thus, it is possible to improve the functional reliability of brake pedal simulator.
In addition, herein optionally, as shown in figure 21, the brake pedal simulator includes shell 420, the shell 420 packet Include the department of assembly 405 and for accommodating the screw mechanism 406 and section transmission mechanism (transmission gear 413 and idle pulley 414) first shell portion 4201, the second shell portion 4202 for accommodating the assist motor 401 and described for accommodating The third housing section 4203 of first elastic component 403 and the second elastic component 404, wherein the end abutment of the second elastic component 404 is in The inner end wall of three housing sections 4203.Wherein, the department of assembly 405, first shell portion 4201, second shell portion 4202 and third Housing section 4203 is interconnected.First shell portion 4201, second shell portion 4202 and third housing section 4203 can pass through bolt Equal fasteners assembly is integral.In addition, could be formed in the first shell portion 4201 for screw mechanism 406 and pass The oil filler point of motivation structure offer lubricating oil.In addition, the department of assembly 405 can be assembled to vehicle body by the fasteners such as bolt 4051 On, brake pedal 400 is exposed in driver's cabin at this time, and thrust structure 402 can selectively part be revealed according to the actual situation For driver's cabin, in order to operate and make brake pedal simulator smaller in the shared installation space in enging cabin.Separately Outside, the dust cover 4204 in the portion perimeter face for covering the second distance rod 4022 can be set in department of assembly 405 to rise To sealing and dust-proof effect.Make brake pedal simulator that there is characteristics of compact layout by structure as described above and realizes module Change the effect of design.But it's not limited to that for the disclosure, can be according to the arragement construction of brake pedal simulator come the reasonable earth's crust The structure of body 420.
Above content combination Figure 15 to Figure 21 describes the brake pedal simulator of the 4th embodiment of disclosure offer, In essentially describe from first to the different feature of third embodiment, the feature of four embodiments in the case of no contradiction It can be replaced mutually, combine, this disclosure does not do this and excessively repeats.
Brake pedal based on two springs in series arrangements of use that above-mentioned first to fourth embodiment provides On the basis of simulator, according to another aspect of the present disclosure, a kind of brake system of car, the brake system of car packet are also provided Include any one brake pedal simulator in first to fourth embodiment.Optionally, the brake system of car includes braking Control unit, the brak control unit control the assist motor according to the real-time pedal force or pedal travel of the brake pedal Working condition.The feelings of the working condition of assist motor are controlled according to the real-time pedal force of brake pedal in brak control unit Under condition, the braking process of the brake system of car of the disclosure is illustrated.When automobile is braked, driver operates braking Pedal and braking instruction is input on disclosure brake pedal simulator as described above, stepped on wherein stepping on braking in driver When plate, the thrust structure in brake pedal simulator drives the first elastic component and the second elastic component to synchronize axially compressed, thrust The opposition that structure is provided by the first elastic component and the second elastic component, and stepped on when this opposition acts on braking When the brake pedal force of plate reaches preset value, brak control unit sends the finger of starting assist motor to controller as described above It enables.The torque that it is exported after assist motor starting is transmitted to the first elastic component and the second elastic component by being driven matching mechanism, with Power-assisted can be provided for brake pedal and thrust structure and the first elastic component and the second elastic component is driven further to be compressed, so that Brake pedal and thrust structure further occurrence change in displacement, and since transmission matching mechanism is born by the first elastic component and the A part of opposition that two elastic components apply.The opposition being subject to thus, it is possible to reduce thrust structure, so that braking Pedal obtains suitable brake pedal force, so as to simulate the pedal force of brake pedal and the target value of pedal travel.By This, the information such as pedal force signal and pedal travel signal are transferred on brak control unit by controller, brak control unit The braking intention (for example, service brake or parking braking, deceleration etc.) of driver is judged according to the signal, at the same time, system The electric current and rotor-position that dynamic control unit passes through motor in corresponding sensor reception wheel rotation speed signals, brake actuator Signal, vehicle velocity signal.Optimal brake needed for brak control unit calculates each wheel according to above- mentioned information in real time as a result, Pedal force simultaneously issues corresponding control signal, is braked with finally controlling brake actuator.
According to the another aspect of the disclosure, a kind of vehicle is also provided, which includes brake system of car as described above. The vehicle can reliably simulate the braking of brake pedal and being provided with brake pedal simulator as described above as a result, Pedal force and braking distance, to provide good brake feel for driver.In addition, passing through control for brake side as described above Method replaces existing hydraulic braking portion by assist motor and transmission matching mechanism to realize simulating brake pedal characteristic Part and the influence that is not only simple in structure and not will receive the factors such as hydraulic, so that wheel has, operational stability is good, system Dynamic pedal responds rapid and other effects.
Four kinds of embodiments of the disclosure are described in detail in conjunction with attached drawing above, still, the disclosure is not limited to above-mentioned reality The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure Monotropic type, these simple variants belong to the protection scope of the disclosure.
The preferred embodiment of the disclosure is described in detail in conjunction with attached drawing above, still, the disclosure is not limited to above-mentioned reality The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure Monotropic type, these simple variants belong to the protection scope of the disclosure.
It is further to note that specific technical features described in the above specific embodiments, in not lance In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the disclosure to it is various can No further explanation will be given for the combination of energy.
In addition, any combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally Disclosed thought equally should be considered as disclosure disclosure of that.

Claims (17)

1. a kind of brake pedal simulator, which is characterized in that the brake pedal simulator includes brake pedal (200), power-assisted electricity Machine (201), the department of assembly (205) for being assembled on vehicle body, axially spaced apart two sides in the department of assembly (205) First elastic component (203) and the second elastic component (204) are located at first elastic component (203) and second elastic component (204) Between gear and rack teeth mechanism (206), be articulated with the brake pedal (200) and with first elastic component (203) cooperate with First elastic component (203) and second elastic component (204) can be driven simultaneously along the thrust structure of the axial stretching (202), first elastic component (203) and second elastic component (204) are matched jointly mentions combined into the brake pedal (200) For pedal preset force, the output shaft (2011) of the assist motor (201) passes through the gear and rack teeth mechanism (206) and described the One elastic component (203) and second elastic component (204) cooperation, are helped with that can provide for the driving of the thrust structure (202) Power.
2. brake pedal simulator according to claim 1, which is characterized in that the gear and rack teeth mechanism (206) includes Gear shaft (2061) and rack gear (2062), the gear shaft (2061) and the output shaft (2011) of the assist motor (201) connect The power-assisted gear (2063) engaged with the rack gear (2062) is connect and is provided with, the first end of the rack gear (2062) is connected to institute It states the first elastic component (203), the second end of the rack gear (2062) abuts or be connected to second elastic component (204).
3. brake pedal simulator according to claim 2, which is characterized in that the output shaft of the assist motor (201) (2011) it is connect by transmission mechanism with the gear shaft (2061).
4. brake pedal simulator according to claim 3, which is characterized in that the transmission mechanism includes and the power-assisted The deceleration mechanism of output shaft (2011) connection of motor (201), the output end of the gear shaft (2061) and the deceleration mechanism Connection.
5. brake pedal simulator according to claim 4, which is characterized in that the deceleration mechanism is gear pair speed reducer Structure (207), the gear pair deceleration mechanism (207) include first connect by transmission shaft (2073) with the output shaft (2011) Gear (2071) and the second gear (2072) engaged with the first gear (2071), second gear (2072) setting exist On the gear shaft (2061).
6. brake pedal simulator according to claim 5, which is characterized in that the transmission shaft (2073) and the gear In parallel, the assist motor (201) and the deceleration mechanism are arranged in the rack gear (2062) in the radial direction to axis (2061) Two sides.
7. brake pedal simulator according to claim 4, which is characterized in that the assist motor (201), the deceleration Mechanism and the gear and rack teeth mechanism (206) are located at one that the department of assembly (205) corresponds to second elastic component (204) Side.
8. the brake pedal simulator according to any one of claim 2-7, which is characterized in that first elastic component (203) and second elastic component (204) is helical spring.
9. brake pedal simulator according to claim 8, which is characterized in that the brake pedal simulator includes being used for Install the first spring base (210) of first elastic component (203) and for installing second elastic component (204) second Spring base (211), one end of first spring base (210) and the thrust structure (202) cooperate, first spring base (210) the other end is connected to the second spring seat (211), and the middle part of first spring base (210) is formed State the rack gear (2062) of gear and rack teeth mechanism (206).
10. brake pedal simulator according to claim 9, which is characterized in that first spring base (210) includes edge The first flange and the first extension rod axially arranged, first flange and the thrust structure (202) are with merging and described the One extension rod can be mounted on first extension rod along the axial movement, first elastic component (203) together and should One end of first elastic component (203) is connected to first flange, the abutting of the other end and limit in the department of assembly (205) Flange (2053) abuts, and first extension rod is formed in the middle part of the abutment flange (2053) and first extension rod For the rack gear (2062) to engage with the power-assisted gear (2063), the second spring seat (211) includes prolonging with described first Second flange of the end contact of boom and the second extension rod extended from second flange, second elastic component (204) It is mounted on second extension rod and one end of second elastic component (204) is connected to second flange, the other end can It is connected in the shell (220) of the brake pedal simulator.
11. brake pedal simulator according to claim 9, which is characterized in that the thrust structure (202) includes hinged In the brake pedal (200) the first distance rod (2021) and be articulated with the second distance rod of first distance rod (2021) (2022), which is formed as ball stud, the bulb (2023) of second distance rod (2022) and institute State the cooperation of the first spring base (210) cambered surface.
12. brake pedal simulator according to claim 11, which is characterized in that the radius of curvature of the bulb (2023) Less than the radius of curvature for the arc mating surface that first spring base (210) corresponds to the bulb (2023).
13. brake pedal simulator according to claim 11, which is characterized in that the hinge of second distance rod (2022) The hinged seat (2024) that end is provided with the U-shaped being threadedly coupled with the hinged end is connect, is distinguished on the both side plate of the hinged seat (2024) It is formed with hinge hole (2025), second distance rod (2022) penetrates through the bottom plate (2026) of the hinged seat (2024) and passes through It is arranged and is threaded on the bottom plate (2026) in the nut (2027) on the bottom plate (2026) with can be along axially adjustable position It sets.
14. brake pedal simulator according to claim 1, which is characterized in that the brake pedal simulator further includes For controlling the controller (208) of the working condition of the assist motor (201) and for detecting the assist motor (201) Revolving speed sensor (209).
15. a kind of brake system of car, which is characterized in that the brake system of car includes any in -14 according to claim 1 Brake pedal simulator described in.
16. brake system of car according to claim 15, which is characterized in that the brake system of car includes braking control Unit processed, the brak control unit control the power-assisted electricity according to the real-time brake pedal force or pedal travel of the brake pedal The working condition of machine.
17. a kind of vehicle, which is characterized in that the vehicle includes brake system of car according to claim 15 or 16.
CN201710524805.XA 2017-06-30 2017-06-30 Brake pedal simulator, automobile brake system and vehicle Active CN109204265B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011016240A1 (en) * 2011-04-06 2012-10-11 Volkswagen Ag Pedal force simulator for controlling brake force in vehicle braking system, has piston rod that is slide mounted by slide bearing of radial-spherical bearing in front wall of cylinders
JP2014046857A (en) * 2012-08-31 2014-03-17 Hitachi Automotive Systems Ltd Electric booster
DE102013007574A1 (en) * 2013-05-02 2014-11-06 Volkswagen Aktiengesellschaft Actuating device for arrangement between a brake pedal and a master cylinder of a motor vehicle
CN203974787U (en) * 2014-08-01 2014-12-03 李红朋 A kind of Novel pure electric vacuum booster electric brake pedal
CN204567653U (en) * 2015-03-27 2015-08-19 同济大学 A kind of EHB
CN105197002A (en) * 2014-06-24 2015-12-30 上海通用汽车有限公司 Vehicle brake booster and control method thereof
CN106458167A (en) * 2014-05-20 2017-02-22 爱皮加特股份公司 Actuating system for a vehicle brake and method of operating the actuating system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011016240A1 (en) * 2011-04-06 2012-10-11 Volkswagen Ag Pedal force simulator for controlling brake force in vehicle braking system, has piston rod that is slide mounted by slide bearing of radial-spherical bearing in front wall of cylinders
JP2014046857A (en) * 2012-08-31 2014-03-17 Hitachi Automotive Systems Ltd Electric booster
DE102013007574A1 (en) * 2013-05-02 2014-11-06 Volkswagen Aktiengesellschaft Actuating device for arrangement between a brake pedal and a master cylinder of a motor vehicle
CN106458167A (en) * 2014-05-20 2017-02-22 爱皮加特股份公司 Actuating system for a vehicle brake and method of operating the actuating system
CN105197002A (en) * 2014-06-24 2015-12-30 上海通用汽车有限公司 Vehicle brake booster and control method thereof
CN203974787U (en) * 2014-08-01 2014-12-03 李红朋 A kind of Novel pure electric vacuum booster electric brake pedal
CN204567653U (en) * 2015-03-27 2015-08-19 同济大学 A kind of EHB

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