CN109204263A

CN109204263A - Brake pedal simulator, brake system of car and vehicle

Info

Publication number: CN109204263A
Application number: CN201710524760.6A
Authority: CN
Inventors: 滕俊辉; 王铁君; 李传博; 刘苏丽; 郑祖雄
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2017-06-30
Filing date: 2017-06-30
Publication date: 2019-01-15
Anticipated expiration: 2037-06-30
Also published as: CN109204263B

Abstract

This disclosure relates to a kind of brake pedal simulator, brake system of car and vehicle, brake pedal simulator includes brake pedal, assist motor, department of assembly, axially spaced apart the first elastic component and the second elastic component in department of assembly side, gear and rack teeth mechanism between two elastic components, it is articulated with brake pedal and can successively drive the first elastic component and the axially retractable thrust structure of the second elastic component, first elastic component provides pedal preset force for brake pedal, the output shaft of assist motor can be cooperated by gear and rack teeth mechanism with the second elastic component provides power-assisted with the driving for thrust structure, the first elastic component is compressed by thrust mechanism in the first working condition, the first elastic component is made by thrust structure and the cooperation of assist motor in the second working condition and the second elastic component is synchronous is compressed.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, feeds back when making driver that can not directly perceive braking to the braking on brake pedal Counter-force, to lose the brake feel of Conventional braking systems.Wherein, brake feel, which refers to, feels including pedal brake, drives The factors such as vehicle braking deceleration, brake noise acoustically and visual vehicle deceleration that the person of sailing experiences Comprehensive feel, wherein pedal brake feels to be most important part.For usually passing through the system of adding in above-mentioned braking system Dynamic pedal simulator carrys out the characteristic of simulating brake pedal, feels to provide good pedal brake for driver.Brake pedal The working principle of simulator 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 this hydraulic control Not only structure is complicated but also simulates pedal fluctuation because the hydraulic shock of hydraulic system may result in for the pedal simulator of method It is larger and then there is a problem of that operational stability is low.

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.

In order to solve above-mentioned purpose, according to one aspect of the disclosure, a kind of brake pedal simulator is provided, which steps on Plate simulator includes brake pedal, assist motor, the department of assembly for being assembled on vehicle body, axially spaced apart described The first elastic component and the second elastic component of the side of department of assembly, between first elastic component and second elastic component Gear and rack teeth mechanism, be articulated with the brake pedal and can successively drive first elastic component and it is described second elasticity For part along the thrust structure of the axial stretching, first elastic component provides pedal preset force for the brake pedal, described to help The output shaft of force motor can be cooperated by the gear and rack teeth mechanism with second elastic component, can be the thrust The driving of structure provides power-assisted, wherein and the brake pedal simulator has the first working condition and the second working condition, Under first working condition, by the thrust mechanism first elastic component is compressed, in the second work shape Under state, by the cooperation of the thrust structure and the assist motor so that first elastic component and second elastic component Synchronization is compressed.

Optionally, the gear and rack teeth mechanism makes first elasticity during driving the second elastic component compression Part is synchronously compressed.

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 Part, under second working condition, the second end of the rack gear is separated with second elastic component, in second work Under state, the second end of the rack gear is abutted with second elastic component.

Optionally, first elastic component and second elastic component are helical spring.

Optionally, the brake pedal simulator includes spring base, which includes cooperating with the thrust structure First flange, from first flange along the axial direction successively extend for install first elastic component the first extension rod, It is used to form the second extension rod of the rack gear and the second flange for abutting second elastic component, first bullet Property part one end be connected to first flange, and first elastic component corresponds to the other end of second elastic component and supports It is connected in the shell of the brake pedal simulator, one end of second elastic component is connected to second flange, and another End can be connected in the shell.

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 and the spring base of second distance rod Cambered surface cooperation.

Optionally, the radius of curvature of the bulb is less than the song that the spring base corresponds to the arc mating surface of the bulb Rate radius.

Optionally, the hinged end of second distance rod is provided with the hinged seat of U-shaped, distinguishes on the both side plate of the hinged seat It is formed with hinge hole, second distance rod penetrates through the bottom plate of the hinged seat and the nut by being arranged on the bottom plate It is threadedly coupled on which floor plate with can be along axially adjustable position.

Optionally, second distance rod is arranged with locking seat close to the part of the bulb, the outer peripheral surface of the locking seat It is above circumferentially spaced to be disposed with axially extending multiple locking protrusions, spring base one end shape corresponding with the locking seat The locking groove of the cooperation of locking protrusion described in Cheng Youyu.

Optionally, the output shaft of the assist motor passes through deceleration mechanism and the gear axis connection.

Optionally, the deceleration mechanism is planet gear reducing mechanism, and in the planet gear reducing mechanism, sun gear is helped with described The output axis connection of force motor, planet carrier and the gear axis connection, gear ring are fixed on the shell of the brake pedal simulator It is interior.

Optionally, the brake pedal simulator further include the controller for controlling the working condition of the assist motor with And the sensor of the revolving speed for detecting the assist motor.

Optionally, the brake pedal simulator includes shell, which includes the department of assembly, for accommodating described One elastic component, the first shell portion of the gear and rack teeth mechanism and second elastic component and for accommodating power-assisted electricity The second shell portion of machine, the brake pedal and the thrust structure are exposed from the department of assembly, the first shell portion it is interior The step for positioning first elastic component corresponding to one end of second elastic component is formed on circumferential surface.

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, the vehicle includes brake system of car as described above.

By structure as described above, in driver's brake pedal, thrust structure successively drives the first elastic component It is axially compressed with the second elastic component, and make its output torque via gear teeth by assist motor in this compression process Mechanism is transmitted to the second elastic component and/or the first elastic component and provides power-assisted for brake pedal and thrust structure, middle gear Rackwork bear to be reduced by a part of opposition that the first elastic component and the second elastic component provide thrust structure by Opposition so that brake pedal obtains suitable brake pedal force, to provide the brake feel of reliable brake pedal Feel, thus, it is possible to simulate accurate brake pedal force, with operational stability, good, brake pedal is accordingly rapid and other effects. In addition, passing through when the component malfunctions such as assist motor, gear and rack teeth mechanism or the second elastic component can not work normally First elastic component for brake pedal provides based-pedal power and also can be realized the brake feel of brake pedal, so as to after It is continuous to implement braking, guarantee that braking system remains normal work, 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 structural principle according to the brake pedal simulator of disclosure first embodiment in a second operative state Schematic diagram one；

Fig. 2 is according to the principle schematic diagram two of the brake pedal simulator of disclosure first embodiment, wherein saving Brake pedal and the first distance rod are removed；

Fig. 3 is the structure chart according to the second distance rod of the brake pedal simulator of disclosure first embodiment；

Fig. 4 is to be stepped on according to the installation diagram of the brake pedal simulator of disclosure first embodiment wherein eliminating braking Plate and the first distance rod；

Fig. 5 is the installation diagram according to thrust structure and shell in the brake pedal simulator of disclosure first embodiment, Brake pedal and the first distance rod is wherein omitted；

Fig. 6 is the structural principle according to the brake pedal simulator of disclosure second embodiment in a second operative state Schematic diagram；

Fig. 7 is according to the sectional structure chart of the brake pedal simulator of disclosure second embodiment, wherein eliminating system Dynamic pedal, the first distance rod, assist motor, sensor and controller；

Fig. 8 is brake pedal simulator middle gear rackwork, the first elastic component according to disclosure second embodiment With the mated condition figure of the second elastic component；

Fig. 9 is the structure chart according to the second distance rod of the brake pedal simulator of disclosure second embodiment；

Figure 10 is the installation diagram according to thrust structure and shell in the brake pedal simulator of disclosure second embodiment, Brake pedal and the first distance rod is wherein omitted；

Figure 11 is former according to the structure of the brake pedal simulator of disclosure third embodiment in a second operative state Manage schematic diagram one；

Figure 12 is former according to the structure of the brake pedal simulator of disclosure third embodiment in a second operative state Manage schematic diagram two, wherein the part progress with the cooperation of the first elastic component in order to clearly show that internal structure, for department of assembly Local cutting；

Figure 13 be according to the brake pedal simulator middle gear rackwork of disclosure third embodiment, deceleration mechanism with And second elastic component mated condition figure；

Figure 14 is the structure chart according to the second distance rod of the brake pedal simulator of disclosure third embodiment；

Figure 15 is according to thrust structure, the first elastic component and shell in the brake pedal simulator of disclosure third embodiment The installation diagram of body, wherein brake pedal and the first distance rod is omitted.

Description of symbols

500,600,700 brake pedal；501,601,701 assist motor；502,602,702 thrust structure； 503,603, 703 first elastic components；504,604,704 second elastic component；505,605,705 department of assembly；606,706 gear and rack teeth mechanism； 506 screw mechanisms；507,607 planet gear reducing mechanism；707 gear pair deceleration mechanisms；508,608,708 controller；509, 609,709 sensor；510,610 spring base；710 first spring bases；711 second spring seats；512 connecting rods；612 first extend Bar；513 transmission gears；613 second extension rods；514 idle pulleys；；515,611 first flange；516,614 second flange；520, 620,720 shell；5011,6011,7011 output shaft；5021,6021,7,021 first distance rod；5022,6022,7,022 second Distance rod；5023,6023,7023 bulb；5024,6024,7024 hinged seat；5025,6025,7025 hinge hole；5026, 6026,7026 bottom plate；5027,6027,7027 nut；6028 locking seats；5028 butt joints；6029 locking protrusions；5029 push away Disk；5051,6051,7051 fastener；7052 restriction protrusions；7053 abutment flanges；6061,7061 gear shaft；5061 power-assisted spiral shells Bar；6062,7062 rack gear；5062,6063,7063 power-assisted gear；7064 second ends；5071,6071 sun gear；7071 first Gear；5072,6072 planet carrier；7072 second gears；5073,6073 gear ring；7073 transmission shafts；5074,6074 planetary gear； 6101 locking grooves；5201,6201,7201 first shell portion；5202,6202,7202 second shell portion；5203,5203a, 6203,7203 third housing section；5204,7204 the 4th housing section；5204 dust covers；6204 steps；7205 first locking platforms； 5205 steps；7206 second locking platforms；50281U 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 accordingly Component outline 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 braking of the disclosure is stepped on Plate simulator uses the fit structure of multiple elastic components and the thrust structure for driving multiple elastic components axially retractable, Specifically, it according to the first of the disclosure to third embodiment, realizes by following technical solution: according to the system of the disclosure Dynamic pedal simulator include brake pedal, multiple elastic components and be articulated with the brake pedal and with multiple elastic components Cooperation is at least partly elastic in multiple elastic components with the thrust structure for driving the elastic component axially retractable Part provides the pedal preset force for the brake pedal.Here, pedal preset force is typically referred in non-brake pedal Under original state, brake pedal by via thrust structure by the reaction force applied by elastic component.Wherein, all elastic Part or partial elastic part provide pedal force for brake pedal, guarantee that braking system remains normal work and is capable of providing The brake feel of reliable brake pedal can simulate accurately braking from there through simple structure as described above and step on Plate power, and good, brake pedal is accordingly rapid and other effects with operational stability.In addition, for the pedal travel of brake pedal Can indirectly by the mode of shift motion perhaps compression travel of elastic component etc. of control thrust structure determining or Can also by other, reasonably control mode controls the pedal travel of brake pedal, be 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 In the case where providing the pedal preset force for the brake pedal, the thrust structure can drive more according to predetermined order The partial elastic part and remaining elastic component in a elastic component is along the axial stretching；Multiple elastic components are In the case that the brake pedal provides the pedal preset force, the thrust structure can drive all elastic component edges Axial synchronization telescope.Here, providing the feelings of pedal preset force for the partial elastic part in multiple elastic components for brake pedal Condition can pass through (the shape of i.e. non-brake pedal in the initial state of the partial elastic part in the multiple elastic component State) with thrust structure cooperate, and remaining elastic component in multiple elastic components in the initial state not with thrust structure and/or institute The mode of partial elastic part cooperation is stated to realize.It is direct by thrust structure after brake pedal to default pedal travel Drive remaining elastic component or thrust structure to pass through the partial elastic part drive the modes such as remaining elastic component realize driving The axially retractable function of remaining described elastic component.Here, remaining elastic component by it is flexible during, the partial elastic Part can also synchronously stretch with remaining described elastic component or the partial elastic part also may remain in compressed shape State can specifically design this according to actual needs.In addition, for it is above-mentioned refer to according to predetermined order according to multiple bullets The specific arrangement method of property part carrys out reasonable design.For example, the partial elastic part in multiple elastic components is two or more And arrangement is sequentially connected along axial direction, and remaining elastic component is more than two and is sequentially connected along axial direction or the case where arranged for interval Under, it is described first to drive the partial elastic part to compress for thrust structure according to predetermined order, in the partial elastic part pressure It, can be in such a way that the partial elastic part be contacted with remaining described elastic component or thrust structure after being reduced to predeterminated position Come with the mode of remaining described elastic component cooperation so that thrust structure successively drives remaining described elastic component to compress.And for from The sequence that compressive state is changed into original state can be opposite with sequence as described above.In addition, for another example, when the part bullet Property part be more than two (elastic components of identical size can be used herein) and along circumferential direction arranged for interval (for example, can be The circumferentially-spaced arrangement along described two supporters is arranged between two axially spaced apart isostructural supporters of disk Multiple elastic components), and remaining elastic component is also more than two (can use the elastic components of identical size herein) and circumferentially Direction arranged for interval between two axially spaced apart isostructural supporters of disk (for example, can arrange along described Circumferentially spaced multiple elastic components of two supporters) in the case where, described according to predetermined order can be thrust structure First drive the partial elastic part axially compressed jointly, it, can after the partial elastic part is compressed to predeterminated position jointly By way of through the partial elastic part and remaining described all elastic part contact or thrust structure and it is described remaining own The mode of elastic component cooperation is come so that thrust structure drives remaining described all elastic part axially compressed jointly.And for from The sequence that compressive state is changed into original state can be opposite with sequence as described above.For the example above to elastic component Specific driving method, it's not limited to that for the disclosure, as long as driving can finally can be realized by the driving of thrust structure The flexible function of multiple elastic components can then use the arrangement of other a variety of multiple elastic components appropriate, fall on this In disclosed protection scope.

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 A variety of structures appropriate can provide power-assisted, resistance for the driving of elastic component for thrust structure or can meet simultaneously The function of power-assisted and resistance is provided, thus, it is possible to the cooperations by driving device and thrust structure being capable of more accurate ground mould Draw up required pedal force.Here, optionally, the brake pedal simulator includes for driving the elastic component further to stretch Contracting is can provide the power assisting device of power-assisted for the driving of the elastic component for the thrust structure.Wherein, the power-assisted dress Setting can be using various structures, such as can be the simple telescoping mechanisms such as driving cylinders, the jack such as electric cylinder, cylinder, hydraulic cylinder Single structure, or may be using such as gear pair, rack-and-pinion, turbine and worm is secondary, V belt translation is secondary, screw pair Etc. the structural assembly that a variety of mechanical transmission mechanisms are mutually driven cooperation, which kind of structure no matter is used, is not limited to above-mentioned mention herein And structure, as long as can be implemented as thrust structure for elastic component driving provide power-assisted function.

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 the driving of the thrust structure by the transmission matching mechanism Power-assisted is provided.In the disclosure, although the brake pedal simulator for providing following three kinds of specific embodiments carrys out simulating brake Pedal characteristic, wherein for the ease of and clearly demonstrate the disclosure, brake pedal 500,600,700 and the power-assisted electricity being related to Machine 501,601,701 has been all made of identical structure, but this is not used to the interest field of the restriction disclosure.In addition, for passing Dynamic matching mechanism can use the arragement construction of various reasonable, pass to the output torque of assist motor as long as can be realized Elastic component is can provide the function of power-assisted for thrust structure.For example, as shown in Fig. 6 to Figure 15, the transmission cooperation Mechanism may include gear and rack teeth mechanism, and the output shaft of assist motor can be matched by this gear and rack teeth mechanism with elastic component It closes, so as to provide power-assisted for the driving of elastic component for thrust structure, for another example, as shown in Fig. 1 to Fig. 5, the transmission is matched Closing mechanism may include screw mechanism, and the output shaft of assist motor can be cooperated by this screw mechanism and elastic component, thus Power-assisted is provided for the driving of elastic component for thrust structure.But the disclosure is not limited to above structure, except above structure it Outside, the transmission matching mechanism can also be gear auxiliary drive gear, Worm and worm-wheel gearing, tape handler, chain conveyer The various structures such as mechanism, 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 pre- If when value, starting assist motor makes the torque exported by assist motor be transmitted to elastic component by being driven matching mechanism, with energy Power-assisted enough is provided for brake pedal and thrust structure and elastic component is driven further to be compressed, so that brake pedal and thrust knot Structure further occurrence change in displacement, and since transmission matching mechanism bears a part of opposition applied by elastic component, The opposition being subject to thus, it is possible to reduce thrust structure, so that brake pedal obtains suitable brake pedal force, so as to Enough simulate the pedal force of brake pedal and the target value of pedal travel.Here, when assist motor or being driven matching mechanism Failure and when can not work normally, provide the brake feel that based-pedal power is also capable of providing brake pedal by elastic component, So as to continue to implement braking, braking function is kept.

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, bullet Property part based-pedal counter-force is provided, guarantee that braking system remains work in assist motor or transmission matching mechanism etc. portions Part is also capable of providing the brake feel of brake pedal when failing, integrate mould for the driving force of elastic component by assist motor Quasi- pedal force, i.e., provide target pedal force by the cooperation of assist motor and elastic component, with compensated foundation pedal force and target Remainder between pedal force.Simulating brake pedal characteristic is realized by brake control method as described above as a result, And it is replaced by assist motor and transmission matching mechanism as existing hydraulic braking component is not only simple in structure and will not Influenced by the factors such as hydraulic, 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 does not limit In two elastic components, can also reasonably select according to the actual situation.Here, the form of two elastic components is used, it is right In two elastic components arrangement can using series system and also using as Fig. 1 to shown in figure 15 following first to Parallel way disclosed in third embodiment.Herein, it should be noted that series system refers to two elastic components along axial Arrangement, and two elastic components are synchronously axially retractable always under the driving by thrust structure and/or driving motor, that is, Two elastic components are stretched simultaneously when initially being driven.It specifically, can be under the driving of brake pedal and/or assist motor So that two elastic components are synchronously carried out compression, and the pedal preset force of brake pedal can be by first in series system The common cooperation of elastic component and the second elastic component is to provide；And parallel way refers to that two elastic components are axially disposed, and is pushing away Driving lower two elastic component parts of power structure and/or assist motor are successively axially retractable, i.e., two bullets when initially being driven Property one of part first realize that along axial flexible, another one is carried out again along axial flexible later.Specifically, it is stepped in braking Under the driving of plate and/or assist motor, can make during some elastic component is in compression with another elastic component phase Mutually contact and the arrangement that further compresses simultaneously, and the pedal preset force of brake pedal can be by parallel way First elastic component or the second elastic component provide, wherein being compressed at first for the elastic component that brake pedal provides pedal preset force. In addition, the structure of various reasonable can be used for the arrangement of two elastic components, for example, two elastic components are using series connection , can be by two axially adjacent arrangements of elastic component in the case where arragement construction, or can also use least partially overlapped Arrangement.For another example, the case where two elastic components are using parallel arrangement structure, can be by two axially spaced cloth of elastic component It sets, or the arrangement that two elastic components can also be overlapped along axial component, this disclosure is not particularly limited, it can To carry out the arragement construction of specific design flexibility part such as space layout demand according to actual needs.In above description, in order to more The arrangement for clearly demonstrating elastic component is described for the arragement construction of two elastic components, but for one or two A above elastic component also can be applicable in above-mentioned parallel way or series system.Such as the elastic component includes by multiple One elastic component it is circumferentially spaced arrangement and the first Flexible element side by side and by multiple second elastic components it is circumferentially spaced arrangement and The second Flexible element side by side.Above-mentioned mode in parallel or series can also be applied for the elastic component of this structure.

Further optionally, the transmission matching mechanism includes screw mechanism or gear and rack teeth mechanism, the assist motor Output shaft is matched by the screw mechanism or the gear and rack teeth mechanism with first elastic component and second elastic component It closes, first elastic component can be driven and second elastic component synchronously stretches or the output of the assist motor Axis is cooperated by the screw mechanism and first elastic component or second elastic component, can drive according to predetermined order First elastic component and second elastic component are moved along the axial stretching.That is, as described above, being adopted in two elastic components In the case where serial arrangement, the output shaft of assist motor can pass through screw mechanism or gear and rack teeth mechanism and first Elastic component and the cooperation of the second elastic component, provide power-assisted by the driving force that assist motor exports for thrust structure, are thus passing through Thrust structure drives under the first elastic component and the compressed state of the second elastic component, can further be driven by assist motor First elastic component and the synchronization of the second elastic component are stretched.In the case where two elastic components use parallel arrangement mode, power-assisted electricity The output shaft of machine is cooperated by screw mechanism or gear and rack teeth mechanism and the first elastic component or the second elastic component, thus by helping The driving force of force motor output provides power-assisted for thrust structure, is thus driving the first elastic component or second by thrust structure Under the compressed state of elastic component, by assist motor can further according to predetermined order drive the first elastic component and/or Second elastic component is axially retractable.Here, for being arranged in parallel mode, when assist motor output shaft by screw mechanism or When gear and rack teeth mechanism and the first elastic component cooperate, the first elastic component is first driven to stretch by assist motor and transmission matching mechanism After contracting, by way of the cooperation of the first elastic component and the second elastic component or transmission matching mechanism is subsequent matches with the second elastic component The mode of conjunction is axially retractable further to drive the second elastic component；When the output shaft of assist motor passes through screw mechanism or tooth When taking turns rackwork and the cooperation of the second elastic component, the second elastic component can first be driven by assist motor and transmission matching mechanism After axially retractable, then by way of the second elastic component and the cooperation of the first elastic component or pass through transmission fit structure and the The mode that one elastic component directly cooperates is axially retractable further to drive the first elastic component.For above-mentioned assist motor and biography For the specific driving sequence of the first elastic component and the second elastic component, the disclosure do not need to limit dynamic matching mechanism, can be with According to actual arrangement structure come reasonable design.

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 In the case where the two sides for being arranged in department of assembly, when pedal simulator to be braked is assembled to vehicle by department of assembly, it is located at the dress One of first elastic component and the second elastic component with portion two sides can be located in enging cabin, and another one can be exposed In driver's cabin, thus, it is possible to reduce occupied space of the brake pedal simulator in enging cabin.But the disclosure is not limited to This, can reasonably arrange the specific position of elastic component according to the actual situation.

Mainly illustrate the first elastic component and the second resilient element connected in parallel according to first to third embodiment in the disclosure The scheme of mode.

Firstly, disclosing a kind of following brake pedal simulator to third embodiment according to first embodiment.Institute Stating brake pedal simulator includes brake pedal, thrust structure and multiple elastic components, the partial elastic part in multiple elastic components There is provided pedal preset force for the brake pedal, the thrust structure be articulated with the brake pedal and with the partial elastic Part cooperation with for successively driving the partial elastic part in multiple elastic components and remaining elastic component axially retractable, The brake pedal simulator has the first working condition and the second working condition, under first working condition, the portion Elastic component is divided to be compressed, under second working condition, the partial elastic part is synchronous with remaining described elastic component to be pressed Contracting.

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, the partial elastic part is first driven to stretch along axial direction by thrust structure Contracting, after brake pedal is moved to default pedal travel, the thrust structure with remaining elastic component by directly successively cooperating What the mode or thrust structure of (such as the fit systems such as contact) were cooperated by the partial elastic part and remaining elastic component Mode realizes the function of driving remaining described elastic component axially retractable.In addition, the above-mentioned successively driving referred to refers to pioneer Dynamic partial elastic part is axially retractable, the driving method for driving remaining elastic component axially retractable again later, wherein for driving During remaining elastic component is axially retractable, the partial elastic part can be stretched along axial direction together with remaining described elastic component Contracting.More specifically, the partial elastic part in multiple elastic components be in multiple and the multiple elastic component it is described its Remaining elastic component is in the case where being also multiple, using the partial elastic part as the first elastic module group, with remaining described elasticity Part is as the second elastic module group, and in the case, successively driving is to be with the first elastic module group and the second elastic module group Datum mark, i.e., first drive the first elastic module group axially retractable, drives the second elastic module group axially retractable again later, As for specific between each elastic component between each elastic component in the first elastic module group, in the second elastic module group The driving method disclosure does not limit.For example, each elastic component in the first elastic module group can axially simultaneously be stretched It contracts, each elastic component in the second elastic module group can also axially simultaneously be stretched or the second elastic component module Each elastic component in group 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, multiple Remaining described elastic component in elastic component can be thrust by the partial elastic part in multiple elastic components when breaking down Structure provides based-pedal counter-force always and is also capable of providing the brake feel of brake pedal, so as to continue to implement braking, Guarantee that braking system remains normal work, keeps braking function.Brake pedal simulator as described above has operation steady Qualitative good, brake pedal is accordingly 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 Person may be using a variety of machine drivings such as gear pair, rack-and-pinion, turbine and worm pair, V belt translation pair, screw pair 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, as long as It can be implemented as thrust structure and provide 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, can also closed according to the actual situation The selection of reason ground.Here, using the parallel form of two elastic components, and two under the driving of thrust structure and/or power assisting device A elastic component can be successively axially compressed, i.e., the first elastic component is first realized along axial compression, Zhi Hou when initially being driven Two elastic components are axially compressed by driving again, and in the compressed process of the second elastic component, the first elastic component is also with the second elasticity Part is compressed together.Specifically, under the driving of thrust structure and/or power assisting device, can to exist in the first elastic component The arrangement for contacting with each other during compression with the second elastic component and further compressing simultaneously.Although in the foregoing description The process compressed just for the first elastic component and the second elastic component is illustrated, but for the first elastic component and second During elastic component is compressed by the reverse actuating force opposite with the driving force provided at present (as thrust structure for The resistance that the driving of elastic component provides) and the course of work that the direction that elastic component stretches is moved is positioned against from current compression Can exist wherein, the structure of various reasonable can be used for the arrangement of two elastic components, it can be by two elastic component edges Axially spaced-apart arrangement, or the arrangement that two elastic components can also be overlapped along axial component, it is not special to this disclosure It does not limit, the arragement construction of specific design flexibility part can be carried out such as space layout demand according to actual needs.Above description In, although being described for the arragement constructions of two elastic components, for one or more elastic component also To be applicable in above-mentioned parallel way.Such as the elastic component include by multiple first elastic components it is circumferentially spaced arrangement and side by side First Flexible element and the second Flexible element side by side by the circumferentially spaced arrangement of multiple second elastic components.For this knot Above-mentioned parallel way can also be applied in the elastic component of structure.

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 be the driving of the thrust structure by the transmission matching mechanism Power-assisted is provided.Here, the arragement construction of various reasonable can be used for transmission matching mechanism, as long as can be realized power-assisted The output torque of motor passes to the first elastic component and/or the second elastic component can provide the function of power-assisted for thrust structure ?.For example, optionally, the transmission matching mechanism includes screw mechanism or gear and rack teeth mechanism, the assist motor it is defeated Shaft can be cooperated by the screw mechanism or the gear and rack teeth mechanism with second elastic component, can be described The driving of thrust structure provides power-assisted, under first working condition, makes first elasticity by the thrust mechanism Part is compressed, under second working condition, by the cooperation of the thrust mechanism and the assist motor so that described One elastic component is synchronous with second elastic component to be compressed.But the disclosure is not limited to above structure, except above structure it Outside, the transmission matching mechanism can also be gear auxiliary drive gear, Worm and worm-wheel gearing, tape handler, chain conveyer The various structures such as mechanism, or the appropriately combined structure between the above-mentioned various structures being related to.

It is described in detail referring to brake pedal simulator of the Fig. 1 to Fig. 5 for the first embodiment of the disclosure.

As depicted in figs. 1 and 2, according to the brake pedal simulator of disclosure first embodiment include brake pedal 500, Assist motor 501, the first axially spaced apart elastic component 503 and the second elastic component 504 are articulated with the brake pedal 500 and with first elastic component 503 cooperate can successively drive first elastic component 503 and second elastic component 504 along the axial stretching thrust structure 502, first elastic component 503 is that provide pedal pre- for the brake pedal 500 Power is set, the output shaft 5011 of the assist motor 501 can be cooperated by screw mechanism 506 with second elastic component 504, Power-assisted can be provided for the driving of the thrust structure 502, wherein the brake pedal simulator has the first work shape State and the second working condition make first elastic component by the thrust mechanism 502 under first working condition 503 are compressed, and under second working condition, are made by the cooperation of the thrust mechanism 502 and the assist motor 501 First elastic component 503 is synchronous with second elastic component 504 is compressed.Here, the first elastic component 503 and the second bullet Property part 504 (does not step on braking in the initial state as the pedal force of brake pedal 500 and the analog element of pedal travel In the case where pedal 500), the first elastic component 503 is in compressive state to provide pedal preset force for brake pedal 500, and Two elastic components 504 are in equal between the first elastic component 503 and thrust structure 502 with 503 discrete state of the first elastic component Power transmitting does not occur.In addition, in the first operative state, the first elastic component 503 is compressed by thrust mechanism 502, and the Two elastic components 504 still identically as the first original state in 503 discrete state of the first elastic component and with the first elastic component Power transmitting does not occur between 503 and thrust structure 502.And in a second operative state, first elastic component 503 Cooperate and be in the state of compression with the second elastic component 504.

Wherein it should be noted that according to the rigidity of the first elastic component 503 and the second elastic component 504 and in the first work shape Transition state is likely present between state and the second working condition.For example, in the lesser situation of 503 rigidity of the first elastic component There are First Transition states between first working condition and the second working condition, that is, only passes through the compression of thrust structure 502 first Because the first elastic component 503 and the second elastic component 504 occur that the second bullet can be compressed simultaneously due to cooperation during elastic component 503 Property part 504, i.e., the first elastic component 503 of compression and the case where the second elastic component 504, occur thrust structure 502 jointly, and at this point, Assist motor 501 is also inactive.And when the first working condition and the second work in the biggish situation of rigidity of the first elastic component 503 Make between state that there are the second transition states, that is, in the first working condition, pass through thrust structure 502 and compress the first elastic component 503.Assist motor 501 starts during further the first elastic component 503 of compression, so that thrust structure 502 and power-assisted electricity The common cooperation of machine 501 and further compress the first elastic component 503, and under second transition state, the first elastic component 503 Do not cooperate with the second elastic component 504 also.

Here, being converted to the second working condition via First Transition state from the first working condition to brake pedal simulator The course of work be illustrated.Specifically, as described above, in driver's brake pedal 500, thrust structure 502 is driven Dynamic first elastic component 503 is axially compressed, and under first working condition, thrust structure 502 is mentioned by the first elastic component 503 The opposition of confession, this course of work are in the first working condition.And when the first elastic component 503 during compression with The cooperation of second elastic component 504, and make thrust structure 502 the first elastic component 503 of driving and the compression of the second elastic component 504 jointly, At this point, thrust structure 502 is by the first elastic component 503 and the second elastic component 504 cooperates jointly and the opposition of offer, This process is in First Transition state.And when the brake pedal force that this opposition acts on brake pedal 500 reaches pre- If when value, starting assist motor 501 makes its output torque be transmitted to the second elastic component 504 and first by screw mechanism 506 Elastic component 503 and be brake pedal 500 and thrust structure 502 provides power-assisted, and screw mechanism 506 is in further compression second The first elastic component 503 can be compressed during elastic component 504 simultaneously, so that brake pedal 500 and thrust structure 502 into one Step is subjected to displacement variation, and at this time since screw mechanism 506 bears to be provided by the first elastic component 503 and the second elastic component 504 A part of opposition, the opposition being subject to thus, it is possible to reduce thrust structure 502, so that brake pedal 500 obtains Suitable brake pedal force is obtained, so as to simulate the pedal force of brake pedal 500 and the target value of pedal travel.

Here, being converted to the second state via the second transition state from the first working condition for brake pedal simulator The course of work is described as follows.In driver's brake pedal 500, thrust structure 502 drives the first elastic component 503 Opposition axially compressed, that thrust structure 502 is provided by the first elastic component 503, this course of work are in the first work Make state.And when this opposition acts on brake pedal 500 during ought further compressing the first elastic component 503 Brake pedal force when reaching preset value, starting assist motor 501 enables its output torque to pass by screw mechanism 506 It passs the first elastic component 503 and is that thrust structure 502 provides power-assisted to further compressing the first elastic component 503, and at this time the One elastic component 503 does not cooperate with the second elastic component 504 also, and thrust structure 502 also suffers from the offer of the first elastic component 503 Opposition, this course of work is in the second transition state.The first elastic component 503 is further compressed in screw mechanism 506 So that the second elastic component 504 can be compressed simultaneously after the first elastic component 503 and the cooperation of the second elastic component 504, so that brake pedal 500 and 502 further occurrence change in displacement of thrust structure, and at this time since screw mechanism 506 is born by the first elastic component 503 and second elastic component 504 provide a part of opposition, can reduce the acting in opposition that thrust structure 502 is subject to Power, so that brake pedal 500 obtains suitable brake pedal force, so as to simulate the pedal force of brake pedal 500 and step on The target value of plate stroke.

In above-mentioned two situations, when the components such as assist motor 501, screw mechanism 506 or the second elastic component 504 occur Failure and when can not work normally, by the first elastic component 503 be brake pedal 500 based-pedal power is provided also can be real The brake feel of existing brake pedal 500 keeps braking function so as to continue to implement braking.In addition, when driver discharges When brake pedal 500,501 power loss of assist motor and make the first elastic component 503 and the second elastic component 504 by the elasticity of itself Restoring force and realize self-return.

The characteristic of simulating brake pedal 500 is realized by brake control method as described above, and passes through power-assisted electricity The cooperation of machine 501 and screw mechanism 506 makes brake pedal simulator not only structure to replace existing hydraulic braking component It simply and not will receive the influence of hydraulic many factors in such as existing, operational stability is good, brake pedal is rung to have Should be rapid and other effects.In addition, though transmission matching mechanism uses screw mechanism 506 in the present embodiment, but the disclosure is simultaneously It is not limited to this, the transmission matching mechanism can use other reasonable arragement constructions.

It should be noted that first embodiment the first elastic component and second elasticity into following third embodiments The rigidity that part uses parallel way and brake pedal simulator brake pedal under corresponding working state can change.That is, Under such as the first working condition, the rigidity of brake pedal is determined by the rigidity of the first elastic component, and in the second working condition Under, the rigidity of brake pedal is determined by the rigidity of the first elastic component and the second elastic component, as a result, in the first working condition The rigidity of brake pedal is different from the rigidity of the brake pedal of the second working condition, herein it is to be understood that the first working condition Brake pedal rigidity be the first elastic component rigidity, and the brake pedal rigidity of the second working condition be the first elastic component and The sum of the rigidity of second elastic component.In addition, in the particular technique feature of above-mentioned First Transition state and the second transition state Rong Jun is suitable for following two and third embodiment.

Optionally, the screw mechanism 506 is cooperated by first elastic component 503 with second elastic component 504, By compressing second elastic component 504 during first elastic component 503 is compressed.Here, screw machine Structure 506 may be arranged to cooperate by way of connecting with the first elastic component 503 with the second elastic component 504, thus in power-assisted electricity When machine 501 starts, output torque is transferred to screw mechanism 506, and the driving the jointly of screw mechanism 506 and thrust structure 502 The compression of one elastic component 503 passes through the first elastic component 503 and the second elastic component during the first elastic component 503 is compressed 504 cooperation and the second elastic component 504 is compressed together with the first elastic component 503.But it's not limited to that for the disclosure, Screw mechanism 506 can also be arranged as directly driving the compression of the second elastic component 504, and the second elastic component 504 can be by with the One elastic component 503 cooperation mode and be further driven to the first elastic component 503 compression.

Optionally, first elastic component 503 and second elastic component 504 are helical spring.Thus, it is possible to by pushing away The driving force that power structure 502 and/or assist motor 501 act on makes quick and sensitive reaction and stretches.But this is not limited The scope of the present disclosure can guarantee brake pedal 500, thrust structure 502, assist motor 501 and screw mechanism 506 Cooperation is come in the case where driving the first elastic component 503 and/or the second elastic component 504 flexible, first elastic component 503 and the Two elastic components 504 can use the structure of various reasonable.

Optionally, as depicted in figs. 1 and 2, the brake pedal simulator includes the department of assembly for being assembled on vehicle body 505, first elastic component 503 and second elastic component 504 are located at the side of the department of assembly 505, the thrust structure 502 are located at the other side of the department of assembly 505, and first elastic component 503 passes through spring base 510 and the thrust structure 502 Cooperation.Make thrust structure 502 and assist motor 501 to the first elastic component by reasonable arragement construction as described above as a result, 503 and second elastic component 504 power transmitting it is rapider, and realized convenient for the first elastic component 503 and the second elastic component 504 Quick-fit.But it's not limited to that for the disclosure, and the first elastic component 503 and the second elastic component 504 can be located at department of assembly 505 Two sides, wherein department of assembly 505 can be assemblied in the boundary between vehicle engine compartments and driver's cabin, in brake pedal When simulator is assembled to vehicle body by department of assembly 505, the first elastic component 503 positioned at 505 side of department of assembly can expose In driver's cabin, and the second elastic component 504 for being located at 505 other side of department of assembly can be located in enging cabin, and thus, it is possible to reduce Occupancy installation space of the brake pedal simulator in enging cabin.But it's not limited to that for the disclosure, the department of assembly 505 Installation site on vehicle body can be arranged specifically according to the actual situation, so as to be suitable for the vehicle of a variety of different structures In.

Optionally, the spring base 510 includes the first flange 515, which corresponds to the thrust structure 502 one end is formed with multiple connecting rods 512 along described axially projecting and circumferentially spaced arrangement, multiple connecting rods 512 with The thrust structure 502 cooperates, and a part of the screw mechanism 506 is located at first flange 515 and the thrust structure Position between 502, and the screw mechanism 506 can be cooperated by spring base 510 with second elastic component 504.By This, so that the arragement construction between assist motor 501, screw mechanism 506 and the first elastic component 503 and the second elastic component 504 It is compact and be easy to implement modularized design.In addition, can be with the second elastic component by spring base 510 for screw mechanism 506 The mode of 504 cooperations can be realized using various structures.For example, being equipped with the first elastic component 503 on spring base 510, and should Spring base 510 and the second elastic component 504 are axially spaced apart, thus pass through the compression of spring base 510 the in screw mechanism 506 During one elastic component 503, spring base 510 it is mobile axially move closer to the direction of the second elastic component 504 and with the second elastic component 504 cooperations, to can drive the second elastic component 504 axially compressed under this mated condition.But the disclosure is not limited to This, as long as the axially compressed function of the second elastic component 504 of driving, spring base 510 can finally be realized by screw mechanism A variety of structures appropriate can be used.In addition, the fit form of connecting rod 512 and thrust structure 502 for spring base 510 can To use various structures, such as mode can be connected through a screw thread to realize.And using be threadedly coupled by the way of the case where Under, can by adjusting the position of the threaded connection part of connecting rod 512 come adjust brake pedal 500 pedal preset force and Slack of pedal.In addition to this, the connecting rod 512 of spring base 510 and thrust structure 502 are threadedly engaged form and can also adjust Brake pedal 500 moves to so that the first elastic component 503 cooperates with the second elastic component 504 realizes stepping on for compression moment with synchronous Plate stroke is defined as pedal priming stroke to the pedal travel below.But it's not limited to that for the disclosure, can also be by adopting Connecting spring seat 510 and thrust structure 502 in other ways.

Optionally, as shown in Figures 1 to 4, the spring base 510 includes from first flange 515 successively along the axis To extension for installing the extension rod, second for abutting second elastic component 504 convex of first elastic component 503 Edge 516, the power-assisted screw rod 5061 of the screw mechanism are connected to first flange, and first elastic component 503 corresponds to institute The one end for stating the second elastic component 504 is fixed in the shell 520 of the brake pedal simulator, in first working condition Under second flange 516 and second elastic component 504 correspond to the other end of first elastic component 503 and separate, in institute Second flange 516 under the second working condition is stated to abut with the other end of second elastic component 504.It is pushing away as a result, Power structure 502 and/or screw mechanism 506 drive spring base 510 as described above axially compressed the by the first flange 515 During one elastic component 503, the second flange 516 of spring base 510 can be connected to the other end of the second elastic component 504, So as to realize that the second elastic component 504 of driving is axially compressed, in the process, the first elastic component 503 and the second elastic component 504 synchronously move.But it's not limited to that for the disclosure, can the structure of spring base 510 to the disclosure suitably become More, it for example, the second flange is formed in the spring base for installing the second elastic component 504, and in this case, only needs Driving the second elastic component 504 compression is realized by the extension rod of spring base 510 and the cooperation of second flange, and it is this Change belongs to the interest field of the disclosure.Optionally, the thrust structure 502 includes being articulated with the brake pedal 500 First distance rod 5021 and first distance rod 5021 is articulated with by hinged seat 5024 and the spring base 510 can be driven The second axially retractable distance rod 5022, the hinged seat 5024 is formed as U-shaped seat, on the both side plate of the hinged seat 5024 It is respectively formed with hinge hole 5025, second distance rod 5022 penetrates through the bottom plate 5026 of the hinged seat 5024 and by setting It sets and is threaded on the bottom plate 5026 in the nut 5027 on the bottom plate 5026 with can be along axially adjustable position.Wherein, Second distance rod 5022 by the hinge hole 5025 on hinged seat 5024 with the first distance rod 5021 hingedly, in addition, passing through bottom plate Nut 5027 on 5026 is threadedly engaged with the second distance rod 5022 and can adjust the pedal preset force of brake pedal 500, steps on Plate idle stroke and pedal priming stroke.But it's not limited to that for the disclosure, can also adjust system by other forms herein Pedal preset force, slack of pedal and the pedal priming stroke of dynamic pedal 500.For example, can by the first distance rod 5021 or Second distance rod 5022, which is arranged to stretching structure that is axially retractable and positioning, (such as can mutually be threadedly engaged The structure of loop bar and the casing being set on loop bar outer peripheral surface) by adjusting pedal preset force and pedal in a manner of flexible Idle stroke.For another example, ground is referred to as described above, is used by the connecting rod of thrust structure 502 and spring base 510 and is threadedly engaged form To realize adjustment pedal preset force, slack of pedal and pedal priming stroke.

Optionally, second distance rod 5022 is formed as ball stud, the thrust structure 502 further include with it is described The butt joint 5028 of 5023 ball pair of the bulb connection of second distance rod 5022, and connect with the connecting rod 512 and with it is described right The push-plate 5029 that connector 5028 cooperates, the screw mechanism 506 are arranged in the push-plate 5029 and first elastic component 503 Between position on.Wherein, push-plate 5029 can be located on the through-hole inner peripheral surface of department of assembly 505, and butt joint 5028 can run through Push-plate 5029 is simultaneously positioned by fasteners such as nuts, here, optionally, being formed on the push-plate 5029 for for described right The perforative through-hole of connector 5028 is formed in the butt joint 5028 and is connected to the push-plate 5029 close to the butt joint The U-shaped pressing plate 50281 of 5028 side.As a result, after butt joint 5028 and push-plate 5029 are assembled and positioned, U-shaped pressing plate 50281 abut the side that push-plate 5029 corresponds to the second distance rod 5022, so as to steadily be pushed away by U-shaped pressing plate 50281 Dynamic push-plate 5029 makes the first elastic component 503 connecting with the push-plate 5029 and can be with first elastic component 503 cooperation Second elastic component 504 is axially compressed.When driver's brake pedal 500 brings it about change in displacement, the first distance rod 5021, the second distance rod 5022, butt joint 5028, push-plate 5029 are also subjected to displacement variation therewith, and pass through the second distance rod 5022 bulb 5023 and the ball pair of butt joint cooperate, and the second distance rod 5022 is enabled to adapt to angle change, prevent with it is right Movement interference phenomenon occurs for connector 5028.But it's not limited to that for the disclosure, herein also optionally, the bulb 5023 with it is right Connector 5028 can cooperate for cambered surface, and the radius of curvature of bulb 5023 is less than butt joint 5028 and corresponds to the bulb 5023 Arc mating surface radius of curvature.Allow bulb 5023 and the butt joint of the second distance rod 5022 in the appropriate range as a result, 5028 arc mating surface relative motion occurs and make brake pedal 500, thrust structure 502, the first elastic component 503 and Transmission process between second elastic component 504 is more smooth.For another example, the second distance rod 5022 can be used with butt joint 5028 Universal joint type of attachment or the second distance rod 5022 of use are directly connected to the form of the end face of butt joint 5028.It needs herein It is noted that the fit structure of butt joint 5028 and push-plate 5029 is to be able to more reliably drive the first elastic component 503 and second elastic component 504, and the case where can be realized above-mentioned purpose and in the case where not conflicting, it can be to thrust The arragement construction of structure 502 suitably changes, and this change belongs in the interest field of the disclosure.

Optionally, the output shaft 5011 of the assist motor 501 is connect by transmission mechanism with the screw mechanism 506. Here, transmission mechanism can use the structure of various reasonable, with can be by the output torque of assist motor 501 with biography appropriate Dynamic ratio passes to screw mechanism 506, so that screw mechanism 506 reliably drives the first elastic component 503 and the second bullet Property part 504 compress, and then the quickly and accurately pedal force and pedal travel of simulating brake pedal 500.

Optionally, the transmission mechanism include the deceleration mechanism being connect with the output shaft 5011 of the assist motor 501, The transmission gear 513 connecting with the output end of the deceleration mechanism, the screw mechanism 506 include and second elastic component 504 It the power-assisted screw rod 5061 of cooperation and is mounted on the outer peripheral surface of the power-assisted screw rod 5061 and is formed with and the power-assisted screw rod 5061 The power-assisted gear 5062 for the internal screw thread being threadedly engaged, the transmission gear 513 pass through idle pulley 514 and the power-assisted gear 5062 Engagement.In the case where using spring base 510 as described above, the power-assisted screw rod 5061 is connected to the first of spring base 510 Flange 515 realizes the cooperation with the second elastic component 504 in a manner of being axially moveable by driving spring seat 510.That is, power-assisted The output torque of motor 501 pass sequentially through deceleration mechanism, transmission gear 513, idle pulley 514, power-assisted gear 5062 and pass to and help Power screw rod 5061, and the driving force of power-assisted screw rod 5061 passes to the first elastic component 503 and/or the second bullet by spring base 510 Property part 504, so that during the first elastic component 503 is axially moveable, (the second flange 516) and second of spring base 510 Elastic component 504 is in contact and synchronously drives the second elastic component 504 axially compressed.Here, deceleration mechanism can use it is more Kind structure, such as turbine worm reducer structure, gear pair deceleration mechanism or planet same as the first embodiment can be used Deceleration mechanism is taken turns, so as to improve transmission efficiency.

Wherein, the deceleration mechanism can use a variety of structures appropriate, such as can use gear pair deceleration mechanism, snail Worm and gear deceleration mechanism, planet gear reducing mechanism etc..Here, optionally, as shown in Figure 1, the deceleration mechanism subtracts for planetary gear Fast mechanism 507, in the planet gear reducing mechanism 507, sun gear 5071 is connect with the output shaft 5011 of the assist motor 501, Planet carrier 5072 as the deceleration mechanism output end and wheel axis connection with the transmission gear 513, gear ring 5073 are fixed In in the shell 520 of the brake pedal simulator.In addition, being additionally provided in planet gear reducing mechanism 507 and sun gear 5071 The planetary gear 5074 engaged with gear ring 5073, planetary gear 5074 are provided centrally with planet carrier 5072.Assist motor 501 as a result, Output torque after the 507 deceleration increment of planet gear reducing mechanism through by transmission gear 513, idle pulley 514 and power-assisted gear 5062 and pass to power-assisted screw rod 5061, that is, the output torque of assist motor 501 through sun gear 5071, planetary gear 5074 and row After carrier 5072, the transmission gear 513 that connect with planet carrier 5072 of forms and lazy is connected etc. by key, spline via being located at Wheel 514 and power-assisted gear 5062 pass to power-assisted screw rod 5061, so that power-assisted screw rod 5061 successively drives during being axially moveable Dynamic first elastic component 503 and the second elastic component 504 are axially retractable.By using planet gear reducing mechanism 507, due to planet Wheel deceleration mechanism 507 itself have the characteristics that it is light-weight and small in size so that brake pedal simulator is with total quality Light and characteristics of compact layout.In addition, the transmission effect of assist motor 501 can be effectively improved by the way that planet gear reducing mechanism 507 is arranged Rate.

Optionally, the brake pedal simulator further includes the control for controlling the working condition of the assist motor 501 The sensor 509 of device 508 processed and the revolving speed for detecting the assist motor 501.Here, specifically, being stepped in driver When lower brake pedal 500, thrust structure 502 drives the first elastic component 503 axially compressed, and thrust structure in the process 502 can also successively drive the second elastic component 504 along axial direction by the cooperation of the first elastic component 503 and the second elastic component 504 Compression, in the process thrust structure 502 successively by the first elastic component 503 provide opposition and the first elastic component 503 and second opposition that provides of elastic component 504, and controller 508 can be according to this reversed in this course of work The brake pedal force that active force acts on brake pedal 500 reaches preset value to control starting assist motor 501, works as controller 508 starting assist motors 501 make that its output torque passes sequentially through planet gear reducing mechanism 507, screw mechanism 506 is transmitted to It first elastic component 503 or is transmitted on the first elastic component 503 and the second elastic component 504, to for brake pedal 500 and push away Power structure 502 provides power-assisted, in the state that the first elastic component 503 and the second elastic component 504 cooperate, screw mechanism 506 into One step can compress the first elastic component 503 during compressing the second elastic component 504 simultaneously, so that brake pedal 500 and thrust 502 further occurrence change in displacement of structure, and at this time since screw mechanism 506 is born by the first elastic component 503 and the second bullet Property part 504 provide a part of opposition, the opposition being subject to thus, it is possible to reduce thrust structure 502 so that system Dynamic pedal 500 obtains suitable brake pedal force, so as to simulate the pedal force and pedal travel of brake pedal 500 Target value.Wherein, sensor 509 is used for the revolving speed of real-time detection assist motor 501 and can feed back controller in real time 508 can monitor the pedal travel of brake pedal 500 in real time, and thus, it is possible to improve the work of brake pedal simulator Reliability.In addition, for the starting opportunity of assist motor 501 be by brake pedal 500 brake pedal force, first elasticity The influence of part 503 and the second elastic component 504, for example, when the rigidity of the first elastic component 503 is smaller, it may be in the first elastic component 503 and second elastic component 504 cooperation and under compressed state (i.e. First Transition state), assist motor 501 can be activated； Or first elastic component 503 rigidity it is larger when, may the first elastic component 503 not with the second elastic component 504 cooperation state Under (i.e. the second transition state), assist motor 501 can be activated.But the disclosure is not particularly limited to this, can be according to reality Situation specifically designs the mode that controller 508 controls assist motor 501.

Optionally, as shown in figure 5, the brake pedal simulator includes shell 520, which includes for assembling Department of assembly 505 on to vehicle body, for accommodating the screw mechanism 506 and section transmission mechanism (transmission gear 513 and lazy Take turns first shell portion 5,201 514), the second shell portion 5202 for accommodating the assist motor 501 and for accommodating State the third housing section 5203 of the first elastic component 503 and second elastic component 504, the end abutment of the second elastic component 504 in The inner end wall of third housing section 5203, the brake pedal 500 and the thrust structure 502 are exposed from the department of assembly 505, It is formed on the inner peripheral surface of the third housing section 5203 for positioning first elastic component 503 corresponding to second bullet The step 5205 of one end of property part 504.Made by described one end that the step 5205 can position the first elastic component 503 Screw mechanism 506 can reliably and effectively synchronize the first elastic component 503 of driving and the compression of the second elastic component 504, improve work Industry reliability.Wherein, the department of assembly 505, first shell portion 5201, second shell portion 5202 and third housing section 5203 It is interconnected.First shell portion 5201, second shell portion 5202 and third housing section 5203 can be filled by fasteners such as bolts With integral.In addition, being could be formed in the first shell portion 5201 for being mentioned to screw mechanism 506 and transmission mechanism For the oil filler point of lubricating oil.In addition, the department of assembly 505 can be assembled on vehicle body by the fasteners such as bolt 5051, at this time Brake pedal 500 is exposed in driver's cabin, and thrust structure 502 selectively can partially be exposed to according to the actual situation and drive Room is sailed, in order to operate and make brake pedal simulator smaller in the shared installation space in enging cabin.In addition, The dust cover 5204 that the portion perimeter face for covering the second distance rod 5022 can be set in department of assembly 505 is close to play Envelope and dust-proof effect.Make brake pedal simulator that there is characteristics of compact layout by structure as described above and realizes modularization 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 reasonably shell 520 structure.

Above content combination Fig. 1 to Fig. 5 describes the brake pedal simulator of disclosure first embodiment offer, not The feature of above-mentioned first embodiment can be applied in following second and third embodiment in contradictory situation.

It is carried out specifically referring to brake pedal simulator of the Fig. 6 to Figure 10 for the second embodiment of the disclosure It is bright.

As shown in Figure 6 and Figure 7, according to the brake pedal simulator of disclosure second embodiment include brake pedal 600, Assist motor 601, the department of assembly 605 for being assembled on vehicle body, the axially spaced apart side in the department of assembly 605 The first elastic component 603 and the second elastic component 604, between first elastic component 603 and second elastic component 604 Gear and rack teeth mechanism 606, be articulated with the brake pedal 600 and can successively drive first elastic component 603 and described For second elastic component 604 along the thrust structure 602 of the axial stretching, first elastic component 603 is the brake pedal 600 Pedal preset force is provided, the output shaft 6011 of the assist motor 601 by the gear and rack teeth mechanism 606 can with it is described Second elastic component 604 cooperation, power-assisted can be provided for the driving of the thrust structure 602, wherein the brake pedal mould There is quasi- device the first working condition and the second working condition to pass through the thrust mechanism 602 under first working condition So that first elastic component 603 is compressed, under second working condition, by the thrust structure 602 and described help The cooperation of force motor 601 is so that first elastic component 603 is synchronous with second elastic component 604 is compressed.

Here, the pedal force and pedal travel of the first elastic component 603 and the second elastic component 604 as brake pedal 600 Analog element, in the initial state (in the case where i.e. non-brake pedal 600), the first elastic component 603 is in compressive state To provide pedal preset force for brake pedal 600, and the second elastic component 604 be in 603 discrete state of the first elastic component and with Power transmitting does not occur between first elastic component 603 and thrust structure 602.In addition, in the first operative state, first Elastic component 603 is compressed by thrust mechanism 602, and the second elastic component 604 still be in identically as the first original state with First elastic component, 603 discrete state and do not occur between the first elastic component 603 and thrust structure 602 power transmitting.And In a second operative state, first elastic component 603 and the cooperation of the second elastic component 604 and the state for being in compression.

It should be noted that the First Transition state and second transition state as referred among the above are suitable For herein in order to avoid repeating, omitting its description in present embodiment.

Here, being converted to the second working condition via First Transition state from the first working condition to brake pedal simulator The course of work be illustrated.Specifically, as described above, in driver's brake pedal 600, thrust structure 602 is driven Dynamic first elastic component 603 is axially compressed, the opposition that thrust structure 602 is provided by the first elastic component 603, this work Make process and is in the first working condition.And work as the first elastic component 603 and cooperate during compression with the second elastic component 604, and So that thrust structure 602 jointly driving the first elastic component 603 and the second elastic component 604 compression, at this point, thrust structure 602 by First elastic component 603 and the common opposition for cooperating and providing of the second elastic component 604, this process are in First Transition shape State.And when the brake pedal force that this opposition acts on brake pedal 600 reaches preset value, start assist motor 601 to make its output torque be transmitted to the second elastic component 604 and the first elastic component 603 by gear and rack teeth mechanism 606 be system Dynamic pedal 600 and thrust structure 602 provide power-assisted, and gear and rack teeth mechanism 606 is due to the first elastic component of synchronous driving at this time 603 and second elastic component 604 compress so that 602 further occurrence change in displacement of brake pedal 600 and thrust structure, and this When a part of acting in opposition for being provided by the first elastic component 603 and the second elastic component 604 born due to gear and rack teeth mechanism 606 Power, the opposition being subject to thus, it is possible to reduce thrust structure 602, so that brake pedal 600 obtains suitable brake pedal Power, so as to simulate the pedal force of brake pedal 600 and the target value of pedal travel.

Here, being converted to the second state via the second transition state from the first working condition for brake pedal simulator The course of work is described as follows.In driver's brake pedal 600, thrust structure 602 drives the first elastic component 603 Opposition axially compressed, that thrust structure 602 is provided by the first elastic component 603, this course of work are in the first work Make state.And when this opposition acts on brake pedal 600 during ought further compressing the first elastic component 603 Brake pedal force when reaching preset value, starting assist motor 601 enables its output torque to pass through gear and rack teeth mechanism 606 pass to the first elastic component 603 and are that thrust structure 602 provides power-assisted to further compressing the first elastic component 603, and The first elastic component 603 does not cooperate with the second elastic component 604 also at this time, and thrust structure 602 also suffers from the first elastic component 603 oppositions provided, this course of work are in the second transition state.In the further compression the of gear and rack teeth mechanism 606 One elastic component 603 can be realized the first elastic component of synchronous compression after first elastic component 603 and the second elastic component 604 are cooperated 603 and second elastic component 604 so that 602 further occurrence change in displacement of brake pedal 600 and thrust structure, and at this time by A part of opposition provided by the first elastic component 603 and the second elastic component 604, energy are provided in gear and rack teeth mechanism 606 The opposition that thrust structure 602 is subject to enough is reduced, so that brake pedal 600 obtains suitable brake pedal force, so as to Enough simulate the pedal force of brake pedal 600 and the target value of pedal travel.

In above-mentioned two situations, when components such as assist motor 601, gear and rack teeth mechanism 606 or the second elastic components 604 When breaking down and can not work normally, based-pedal power is provided for brake pedal 600 by the first elastic component 603 and also can It enough realizes the brake feel of brake pedal 600, so as to continue to implement braking, keeps braking function.In addition, working as driver Discharge brake pedal 600 when, 601 power loss of assist motor and make the first elastic component 603 and the second elastic component 604 by itself Elastic-restoring force and realize self-return.

The characteristic of simulating brake pedal 600 is realized by brake control method as described above, and passes through power-assisted electricity The cooperation of machine 601 and gear and rack teeth mechanism 606 makes brake pedal simulator not only to replace existing hydraulic braking component Structure is simple and not will receive the influence of hydraulic many factors in such as existing, to have, operational stability is good, brakes and steps on Plate responds rapid and other effects.In addition, though transmission matching mechanism uses gear and rack teeth mechanism 606 in the present embodiment, but It's not limited to that for the disclosure, and the transmission matching mechanism can use other reasonable arragement constructions.

It should be noted that the first elastic component 603 and the second elastic component 604 use parallel way and brake pedal The rigidity of simulator brake pedal 600 under corresponding working state can change.That is, under such as the first working condition, system The rigidity of dynamic pedal 600 determined by the rigidity of the first elastic component 603, and in a second operative state, brake pedal 600 Rigidity is determined by the rigidity of the first elastic component 603 and the second elastic component 604, as a result, in the brake pedal of the first working condition 600 rigidity is different from the rigidity of brake pedal 600 of the second working condition, herein it is to be understood that the first working condition The rigidity of brake pedal 600 is the rigidity of the first elastic component 603, and the rigidity of the brake pedal 600 of the second working condition is the The sum of the rigidity of one elastic component 603 and the second elastic component 604.

Optionally, the gear and rack teeth mechanism 606 makes described the during driving second elastic component 604 to compress One elastic component 603 is synchronously compressed.Here, the first elastic component 603 may be arranged to by connecting with gear and rack teeth mechanism 606 The mode connect and the second elastic component 604 cooperate, so that output torque is transferred to rack-and-pinion when assist motor 601 starts Mechanism 606, and the first elastic component 603 of the driving compression jointly of gear and rack teeth mechanism 606 and thrust structure 602, in the first elastic component 603 it is compressed during the second elastic component 604 made by the cooperation of gear and rack teeth mechanism 606 and the second elastic component 604 It is compressed together with the first elastic component 603.But it's not limited to that for the disclosure, and first elastic component 603 may be arranged to lead to It crosses the structures such as mounting base and the second elastic component 604 cooperates.

Optionally, the gear and rack teeth mechanism 606 includes gear shaft 6061 and rack gear 6062, the gear shaft 6061 with The output shaft 6011 of the assist motor 601 connects and is provided with the power-assisted gear 6063 engaged with the rack gear 6062, described The first end of rack gear 6062 is connected to first elastic component 603, under first working condition, the rack gear 6062 Second end is separated with second elastic component 604, under second working condition, the second end of the rack gear 6062 and institute State the second elastic component 604 abutting.As a result, rack gear 6062 can drive the first elastic component 603 compress during axially move closer to The direction of second elastic component 604 is mobile and can cooperate with the second elastic component 604, so as to synchronously compress the first elasticity Part 603 and the second elastic component 604.In addition, rack gear 6062 can pass through mounting base for installing the first elastic component 603 and the The connection of one elastic component 603.Or the rack gear 6062 can be formed directly into the installation for installing the first elastic component 603 The first elastic component 603 and the second elastic component 604 can be driven flexible on seat.For rack gear 6062 and the first elastic component 603 with And second the connection type disclosure of elastic component 604 be not particularly limited, as long as enable to rack gear 6062 by with power-assisted Gear 6063 engages and receives the power output from assist motor 601, so that rack gear 6062 can successively or synchronization drives First elastic component 603 and the compression of the second elastic component 604.

Optionally, first elastic component 603 and second elastic component 604 are helical spring.Thus, it is possible to by pushing away The driving force that power structure 602 and/or assist motor 601 act on makes quick and sensitive reaction and stretches.But this is not limited The scope of the present disclosure can guarantee brake pedal 600, thrust structure 602, assist motor 601 and gear and rack teeth mechanism 606 Cooperation come in the case where driving the first elastic component 603 and/or the second elastic component 604 flexible, 603 He of the first elastic component Second elastic component 604 can use the structure of various reasonable.

Optionally, as shown in Figure 6 to 8, the brake pedal simulator includes spring base 610, the spring base 610 packet It includes and is used for the first flange 611 of the thrust structure 602 cooperation, from first flange 611 along what the axial direction successively extended Install the first extension rod 612 of first elastic component 603, be used to form the rack gear 6062 the second extension rod 613 and For abutting the second flange 614 of second elastic component 604, one end of first elastic component 603 is connected to described first Flange 611, and first elastic component 603 is connected to the brake pedal corresponding to the other end of second elastic component 604 In the shell 620 of simulator, one end of second elastic component 604 is connected to second flange 614, and the other end can It is connected in the shell 620.603 edge of the first elastic component is driven in thrust structure 602 and the cooperation of the first flange 611 as a result, During being compressed axially, spring base 610 (including rack gear 6062) is moved axially move closer to the direction of the second elastic component 604 together It is dynamic, so that being located at second flange 614 of one end of rack gear 6062 can abut with the other end of the second elastic component 604, from And the axially compressed function of the second elastic component 604 of driving can be realized by the structure of spring base 610 as described above, During this, the first elastic component 603 is synchronously moved with the second elastic component 604.But it's not limited to that for the disclosure, can be right The structure of the spring base 610 of the disclosure is suitably changed, as long as can pass through the reasonable of spring base 610 and rack gear 6062 Arragement construction realize the function that the first elastic component 603 and the second elastic component 604 can be driven to compress.For example, rack gear 6062 one end is directly connected in the spring base for installing the first elastic component 603, and the other end of rack gear 6062 can be straight The spring base being connected to for installing the second elastic component 604 is connect, it is this to change the interest field for belonging to the disclosure.

Optionally, as shown in Figure 9 and Figure 10, the thrust structure 602 includes be articulated with the brake pedal 600 the One distance rod 6021 and the second distance rod 6022 for being articulated with first distance rod 6021, second distance rod 6022 are formed as Ball stud, the bulb 6023 of second distance rod 6022 and 610 cambered surface of spring base cooperate.It is stepped on as a result, in driver When lower brake pedal 600 brings it about change in displacement, the first distance rod 6021 and the second distance rod 6022 are also subjected to displacement therewith Variation, and cooperated by the cambered surface of the bulb 6023 of the second distance rod 6022 and spring base 610, enable to the second distance rod 6022 adapt to angle change, prevent movement interference phenomenon.Optionally, the radius of curvature of the bulb 6023 is less than described Spring base 610 corresponds to the radius of curvature of the arc mating surface of the bulb 6023.Allow second in the appropriate range as a result, The arc mating surface of the bulb 6023 of distance rod 6022 and spring base 610 occurs relative motion and makes brake pedal 600, pushes away Transmission process between power structure 602, the first elastic component 603 and the second elastic component 604 is more smooth.But the disclosure is not It is defined in this, the fit form between thrust structure 602 and spring base 610 can use other reasonable structures, such as second Distance rod 6022 and spring base 610 can be using ball pair fit form, universal joint types of attachment or using the second distance rod 6022 are directly connected to the form of the end face of spring base 610.

Optionally, the hinged end of second distance rod 6022 is provided with the hinged seat 6024 of U-shaped, the hinged seat 6024 Both side plate on be respectively formed with hinge hole 6025, second distance rod 6022 penetrates through the bottom plate of the hinged seat 6024 It 6026 and is threaded on the bottom plate 6026 by the nut 6027 that is arranged on the bottom plate 6026 with can be along axial tune Whole position.Wherein, the second distance rod 6022 by the hinge hole 6025 on hinged seat 6024 with the first distance rod 6021 hingedly, In addition, brake pedal 600 can be adjusted by being threadedly engaged by nut 6027 on bottom plate 6026 and the second distance rod 6022 Pedal preset force and slack of pedal.But it's not limited to that for the disclosure, can also adjust braking by other forms herein The pedal preset force and slack of pedal of pedal 600, for example, can be by 6022 cloth of the first distance rod 6021 or the second distance rod Be set to can be axially retractable and the stretching structure that positions (such as the loop bar that is mutually threadedly engaged and loop bar can be set in The structure of casing on outer peripheral surface) by adjusting pedal preset force and slack of pedal in a manner of flexible.And this deformation Embodiment can be adapted in other embodiments.

Optionally, second distance rod 6022 is arranged with locking seat 6028, the card close to the part of the bulb 6023 It is circumferentially spaced on the outer peripheral surface of stopping seat 6028 to be disposed with axially extending multiple locking protrusions 6029, the spring base 610 with Described locking corresponding one end of seat 6028 is formed with the locking groove 6101 with the locking protrusion 6029 cooperation.Here, locking Seat 6028 can be pushed away with the outer peripheral surface clearance fit of the second distance rod 6022 so as to avoid engaging the interference of seat 6,028 second Power bar 6022 is with movement caused by the change in location of brake pedal 600 and the first distance rod 6021.As described above, passing through card The locking protrusion of stopping seat 6028 can reliably connect the second distance rod with the engaging of the locking groove 6101 of spring base 610 6022 and first elastic component 603.But it's not limited to that for the disclosure, between the thrust structure 602 and the first elastic component 603 Fit form can use other reasonable structures.

Optionally, the output shaft 6011 of the assist motor 601 is connect by deceleration mechanism with the gear shaft 6061. Here, the deceleration mechanism can use a variety of structures appropriate, such as gear pair deceleration mechanism, worm and gear can be used Deceleration mechanism, planet gear reducing mechanism etc..Here, optionally, as shown in fig. 6, optionally, the deceleration mechanism is planetary gear Deceleration mechanism 607, in the planet gear reducing mechanism 607, the output shaft 6011 of sun gear 6071 and the assist motor 601 connects It connects, planet carrier 6072 is connect with the gear shaft 6061, and gear ring 6073 is fixed on the shell 620 of the brake pedal simulator It is interior.In addition, the planetary gear 6074 engaged with sun gear 6071 and gear ring 6073 is additionally provided in planet gear reducing mechanism 607, row Star-wheel 6074 is provided centrally with planet carrier 6072, exports the torque from assist motor 601 by planet carrier 6072.It helps as a result, The output torque of force motor 601 is after the 607 deceleration increment of planet gear reducing mechanism through passing to tooth by power-assisted gear 6063 Item 6062, that is, the output torque of assist motor 601 is after sun gear 6071, planetary gear 6074 and planet carrier 6072, via position Tooth is passed in the power-assisted gear 6063 on the gear shaft 6061 connecting by forms such as key, spline connections with planet carrier 6072 Item 6062, so that driving the first elastic component 603 in the direction moving process of axially compressed second elastic component 604 of rack gear 6062 It synchronously stretches with the second elastic component 604.By using planet gear reducing mechanism 607, due to planet gear reducing mechanism 607 Body have the characteristics that it is light-weight and small in size so that brake pedal simulator has total quality light and characteristics of compact layout.Separately Outside, the transmission efficiency of assist motor 601 can be effectively improved by the way that planet gear reducing mechanism 607 is arranged.

Optionally, which further includes the control for controlling the working condition of the assist motor 601 The sensor 609 of device 608 and the revolving speed for detecting the assist motor 601.In driver's brake pedal 600, Thrust structure 602 drives the first elastic component 603 axially compressed, and thrust structure 602 can also pass through gear in the process The rack gear 6062 of rackwork 606 makes the first elastic component 603 and the second elastic component 604 cooperate and drive the second elastic component 604 Opposition and first axially compressed, that thrust structure 602 is successively provided by the first elastic component 603 in the process The opposition that elastic component 603 and the second elastic component 604 provide, and controller 608 can be according to this in this course of work The brake pedal force that kind of opposition acts on brake pedal 600 reaches preset value to control starting assist motor 601, when Controller 608 starts assist motor 601 and its output torque is made to pass sequentially through planet gear reducing mechanism 607, gear and rack teeth mechanism 606 are transmitted to the first elastic component 603 or are transmitted on the first elastic component 603 and the second elastic component 604, to step on for braking Plate 600 and thrust structure 602 provide power-assisted, in the state that the first elastic component 603 and the second elastic component 604 cooperate, gear teeth Mechanism 606 can compress the first elastic component 603 during further the second elastic component 604 of compression simultaneously, so that braking 602 further occurrence change in displacement of pedal 600 and thrust structure, and at this time since gear and rack teeth mechanism 606 is born by first A part of opposition that elastic component 603 and the second elastic component 604 provide is subject to thus, it is possible to reducing thrust structure 602 Opposition, so that brake pedal 600 obtains suitable brake pedal force, so as to simulate stepping on for brake pedal 600 The target value of plate power and pedal travel.Wherein, sensor 609 for real-time detection assist motor 601 revolving speed and can be real-time Ground feeds back the pedal travel that can monitor brake pedal 600 in real time to controller 608, and thus, it is possible to improve braking to step on The functional reliability of plate simulator.In addition, for the starting opportunity of assist motor 601 being stepped on by the braking of brake pedal 600 The influence of plate power, the first elastic component 603 and the second elastic component 604, for example, when the rigidity of the first elastic component 603 is smaller, it can Can be in the first elastic component 603 and the cooperation of the second elastic component 604 and under compressed state (i.e. First Transition state), power-assisted electricity Machine 601 can be activated；Or first elastic component 603 rigidity it is larger when, may the first elastic component 603 not with second elasticity Under the state (i.e. the second transition state) that part 604 cooperates, assist motor 601 can be activated.But the disclosure is not particularly limited to This, can carry out specifically to design according to the actual situation the mode that controller 608 controls assist motor 601.

Optionally, as shown in Figure 10, the brake pedal simulator includes shell 620, which includes the dress With portion 605, for accommodating first elastic component 603, the gear and rack teeth mechanism 606 and second elastic component 604 One housing section 6201 and second shell portion for accommodating the assist motor 601 and planet gear reducing mechanism 607 etc. 6202 and the third housing section 6203 for accommodating controller 608 and sensor 609, second shell portion 6202, the system Dynamic pedal 600 and the thrust structure 602 are exposed from the department of assembly 605, shape on the inner peripheral surface in the first shell portion 6201 At the step 6204 having for positioning first elastic component 603 corresponding to one end of second elastic component 604.By this Step 6204 can position described one end of the first elastic component 603 and enable gear and rack teeth mechanism 606 reliably and effectively It drives the second elastic component 604 and the first elastic component 603 to compress, improves operational reliability.Wherein, the department of assembly 605, One housing section 6201, second shell portion 6202 and third housing section 6203 are interconnected.First shell portion 6201, second shell Body portion 6202 and third housing section 6203 can be assembled integrally by fasteners such as bolts, and 6202 He of second shell portion Third housing section 6203 can be located at the opposite side in first shell portion 6201.In addition, department of assembly 605 can be assemblied in first shell In body portion 6201, or it can also be integrally formed with first shell portion 6201.The department of assembly 605 can pass through bolt 6051 Equal fasteners 6051 are assembled on vehicle body, and brake pedal 600 is exposed in driver's cabin at this time, and thrust structure 602 can basis Actual conditions are selectively partially exposed to driver's cabin, in order to operate.Make brake pedal mould by structure as described above Quasi- device has the effect of characteristics of compact layout and realizes modularized design.But the disclosure does not need to be defined in this, can be according to braking The arragement construction of pedal simulator carrys out the structure of reasonable design shell 620.

Above content combination Fig. 6 to Figure 10 describes the brake pedal simulator of disclosure second embodiment offer, It can be replaced mutually, combine with the feature of other embodiments in reconcilable situation, this disclosure did not did this It repeats more.

It is carried out specifically referring to brake pedal simulator of the Figure 11 to Figure 15 for the third embodiment of the disclosure It is bright.

It as is illustrated by figs. 11 and 12, include brake pedal according to the brake pedal simulator of disclosure third embodiment 700, the assist motor 701, department of assembly 705 for being assembled on vehicle body, axially spaced apart in the department of assembly 705 The first elastic component 703 and the second elastic component 704 of two sides are located at first elastic component 703 and second elastic component 704 Between gear and rack teeth mechanism 706, be articulated with the brake pedal 700 and can successively drive 703 and of the first elastic component For second elastic component 704 along the thrust structure 702 of the axial stretching, first elastic component 703 is the brake pedal 700 provide pedal preset force, and the output shaft 7011 of the assist motor 701 can be with institute by the gear and rack teeth mechanism 706 The cooperation of the second elastic component 704 is stated, power-assisted can be provided for the driving of the thrust structure 702, wherein the brake pedal There is simulator the first working condition and the second working condition to pass through the thrust mechanism under first working condition 702 compress first elastic component 703, under second working condition, pass through the thrust mechanism 702 and institute The cooperation of assist motor 701 is stated so that first elastic component 703 is synchronous with second elastic component 704 is compressed.

Here, the brake pedal simulator of present embodiment is different from the brake pedal simulator in second embodiment It is that the first elastic component 703 and the second elastic component 704 in present embodiment are located at the two sides of department of assembly 705.This implementation as a result, Mode and the structure of the brake pedal simulator in third embodiment can be suitable for the vehicle of different structure.In addition, when dress In the case where being assemblied in the boundary between vehicle engine compartments and driver's cabin with portion 705, it is located at 705 side of department of assembly The first elastic component 703 can be exposed to driver's cabin, and the second elastic component 704 for being located at 705 other side of department of assembly can be located at In enging cabin, thus, it is possible to reduce occupied space of the brake pedal simulator in enging cabin.But the disclosure does not limit In this, installation site of the department of assembly 705 on vehicle body can be arranged specifically according to the actual situation, so as to be applicable in In the vehicle of a variety of different structures.

Here, the pedal force and pedal travel of the first elastic component 703 and the second elastic component 704 as brake pedal 700 Analog element, in the initial state (in the case where i.e. non-brake pedal 700), the first elastic component 703 is in compressive state To provide pedal preset force for brake pedal 700, and the second elastic component 704 be in 703 discrete state of the first elastic component and with Power transmitting does not occur between first elastic component 703 and thrust structure 702.In addition, in the first operative state, first Elastic component 703 is compressed by thrust mechanism 702, and the second elastic component 704 still be in identically as the first original state with First elastic component, 703 discrete state and do not occur between the first elastic component 703 and thrust structure 702 power transmitting.And In a second operative state, first elastic component 703 and the cooperation of the second elastic component 704 and the state for being in compression.

Here, being converted to the second working condition via First Transition state from the first working condition to brake pedal simulator The course of work be illustrated.Specifically, as described above, in driver's brake pedal 700, thrust structure 702 is driven Dynamic first elastic component 703 is axially compressed, the opposition that thrust structure 702 is provided by the first elastic component 703, this work Make process and is in the first working condition.And work as the first elastic component 703 and cooperate during compression with the second elastic component 704, and So that thrust structure 702 jointly driving the first elastic component 703 and the second elastic component 704 compression, at this point, thrust structure 702 by First elastic component 703 and the common opposition for cooperating and providing of the second elastic component 704, this process are in First Transition shape State.And when the brake pedal force that this opposition acts on brake pedal 700 reaches preset value, start assist motor 701 to make its output torque be transmitted to the second elastic component 704 and the first elastic component 703 by gear and rack teeth mechanism 706 be system Dynamic pedal 700 and thrust structure 702 provide power-assisted, and gear and rack teeth mechanism 706 is due to the first elastic component of synchronous driving at this time 703 and second elastic component 704 compress so that 702 further occurrence change in displacement of brake pedal 700 and thrust structure, and this When a part of acting in opposition for being provided by the first elastic component 703 and the second elastic component 704 born due to gear and rack teeth mechanism 706 Power, the opposition being subject to thus, it is possible to reduce thrust structure 702, so that brake pedal 700 obtains suitable brake pedal Power, so as to simulate the pedal force of brake pedal 700 and the target value of pedal travel.

Here, being converted to the second state via the second transition state from the first working condition for brake pedal simulator The course of work is described as follows.In driver's brake pedal 700, thrust structure 702 drives the first elastic component 703 Opposition axially compressed, that thrust structure 702 is provided by the first elastic component 703, this course of work are in the first work Make state.And when this opposition acts on brake pedal 700 during ought further compressing the first elastic component 703 Brake pedal force when reaching preset value, starting assist motor 701 enables its output torque to pass through gear and rack teeth mechanism 706 pass to the first elastic component 703 and are that thrust structure 702 provides power-assisted to further compressing the first elastic component 703, and The first elastic component 703 does not cooperate with the second elastic component 704 also at this time, and thrust structure 702 also suffers from the first elastic component 703 oppositions provided, this course of work are in the second transition state.In the further compression the of gear and rack teeth mechanism 706 One elastic component 703 can be realized the first elastic component of synchronous compression after first elastic component 703 and the second elastic component 704 are cooperated 703 and second elastic component 704 so that 702 further occurrence change in displacement of brake pedal 700 and thrust structure, and at this time by A part of opposition provided by the first elastic component 703 and the second elastic component 704, energy are provided in gear and rack teeth mechanism 706 The opposition that thrust structure 702 is subject to enough is reduced, so that brake pedal 700 obtains suitable brake pedal force, so as to Enough simulate the pedal force of brake pedal 700 and the target value of pedal travel.

In above-mentioned two situations, when components such as assist motor 701, gear and rack teeth mechanism 706 or the second elastic components 704 When breaking down and can not work normally, based-pedal power is provided for brake pedal 700 by the first elastic component 703 and also can It enough realizes the brake feel of brake pedal 700, so as to continue to implement braking, keeps braking function.In addition, working as driver Discharge brake pedal 700 when, 701 power loss of assist motor and make the first elastic component 703 and the second elastic component 704 by itself Elastic-restoring force and realize self-return.

The characteristic of simulating brake pedal 700 is realized by brake control method as described above, and passes through power-assisted electricity The cooperation of machine 701 and gear and rack teeth mechanism 706 makes brake pedal simulator not only to replace existing hydraulic braking component Structure is simple and not will receive the influence of hydraulic many factors in such as existing, to have, operational stability is good, brakes and steps on Plate responds rapid and other effects.In addition, though transmission matching mechanism uses gear and rack teeth mechanism 706 in the present embodiment, but It's not limited to that for the disclosure, and the transmission matching mechanism can use other reasonable arragement constructions.

It should be noted that the first elastic component 703 and the second elastic component 704 use parallel way and brake pedal The rigidity of simulator brake pedal 700 under corresponding working state can change.That is, under such as the first working condition, system The rigidity of dynamic pedal 700 determined by the rigidity of the first elastic component 703, and in a second operative state, brake pedal 700 Rigidity is determined by the rigidity of the first elastic component 703 and the second elastic component 704, as a result, in the brake pedal of the first working condition 700 rigidity is different from the rigidity of brake pedal 700 of the second working condition, herein it is to be understood that the first working condition The rigidity of brake pedal 700 is the rigidity of the first elastic component 703, and the rigidity of the brake pedal 700 of the second working condition is the The sum of the rigidity of one elastic component 703 and the second elastic component 704.

Optionally, as shown in Figure 11 to Figure 13, the gear and rack teeth mechanism 706 includes gear shaft 7061 and rack gear 7062, The gear shaft 7061 connect and is provided with the output shaft 7011 of the assist motor 701 and engaged with the rack gear 7062 Power-assisted gear 7063, the first end of the rack gear 7062 are connected to first elastic component 703, in first working condition Under, the second end 7064 of the rack gear 7062 is separated with second elastic component 704, described under second working condition The second end 7064 of rack gear 7062 is abutted with second elastic component 704.Rack gear 7062 can drive the first elastic component as a result, Direction during 703 compressions axially move closer to the second elastic component 704 is mobile and can cooperate with the second elastic component 704, from And it can synchronously compress the first elastic component 703 and the second elastic component 704.In addition, rack gear 7062 can be by for installing the The mounting base of one elastic component 703 is connect with the first elastic component 703.Or the rack gear 7062 can be formed directly into and be used for It installs in the mounting base of the first elastic component 703 so that the first elastic component 703 and the second elastic component 704 can be driven flexible.For tooth The connection type disclosure of item 7062 and the first elastic component 703 and the second elastic component 704 is not particularly limited, as long as energy Enough so that rack gear 7062 receives the power output from assist motor 701 and engaging with power-assisted gear 7063, so that tooth Item 7062 can successively or synchronization drives the first elastic component 703 and the compression of the second elastic component 704.

Optionally, as is illustrated by figs. 11 and 12, the second end 7064 of the rack gear 7062 and second elastic component 704 For cambered surface cooperation.As a result, during rack gear 7062 and the cooperation of the second elastic component 704 drive the compression of the second elastic component 704 It reduces friction between the two and enables to rack gear 7062 during compressing the second elastic component 704 smoothly along axial direction It is mobile, improve operational stability.But it's not limited to that for the disclosure, can design 7062 He of rack gear according to the actual situation Fit structure between second elastic component 704.For example, the second end 7064 of rack gear 7062 and the second elastic component 704 can be type The forms such as face cooperation, the cooperation of ball pair, groove and raised fit form or socket form etc..

Optionally, second elastic component 704 passes through mounting base for installing second elastic component 704 and the rack gear 7062 second end 7064 cooperates, and the second end 7064 of the rack gear 7062 is formed as cheese, and the mounting base corresponds to institute The end for stating second end 7064 is formed as shape corresponding with the second end 7064.Wherein, optionally, first elasticity Part 703 and second elastic component 704 are helical spring.Herein also optionally, the brake pedal simulator includes for pacifying Fill the first spring base 710 of first elastic component 703 and the second spring seat for installing second elastic component 704 711, one end of first spring base 710 and the thrust structure 702 cooperate, the other end energy of first spring base 710 It is enough connected to the second spring seat 711, and the middle part of first spring base 710 is formed with the gear and rack teeth mechanism 706 rack gear 7062, first elastic component 703, which is fixed on the braking corresponding to one end of second elastic component 704, to be stepped on The shell 720 of plate simulator.That is, rack gear 7062 is formed on the first spring base 710, rack gear 7062 by with the second elastic component 704 abutting and the compression that can be realized the second elastic component 704 of driving, and one end of the first elastic component 703 can pass through limit On the shell 720 that the form of department of assembly 705 is fixed on brake pedal simulator.For example, optionally, it is as shown in figure 12, described First spring base 710 includes the first flange and the first extension rod being sequentially arranged, first flange and the thrust structure 702 cooperate and can be mounted on along the axial movement, first elastic component 703 together with first extension rod described On first extension rod and one end of first elastic component 703 is connected to first flange, and the other end and limit are in the assembly Abutment flange 7053 in portion 705 abuts, and first extension rod is through the abutment flange 7053 and first extension rod Middle part is formed with the rack gear 7062 to engage with the power-assisted gear 7063, and the second spring seat 711 includes being sequentially arranged The second flange and the second extension rod, second flange and the first extension rod arranged for interval and first can prolong with this The end of boom contacts, second elastic component 704 be mounted on second extension rod and second elastic component 704 one End is connected to second flange, and the other end can be connected in the shell 720 of the brake pedal simulator.It is pressing as a result, It contracts during the second elastic component 704, the first elastic component 703 passes through axially compressed second elastic component of the first spring base 710 704 direction is mobile and is synchronously compressed with the second elastic component 704.But it's not limited to that for the disclosure, can be to the disclosure The first spring base 710 and the structure of second spring seat 711 suitably changed, as long as the first spring base 710 can be passed through The function that the first elastic component 703 and the second elastic component 704 can be driven to compress is realized with the reasonable arragement construction of rack gear 7062 ?.

Optionally, the output shaft 7011 of the assist motor 701 is connect by transmission mechanism with the gear shaft 7061. Here, transmission mechanism can use the structure of various reasonable, with can be by the output torque of assist motor 701 with biography appropriate On the dynamic gear shaft 7061 than passing to gear and rack teeth mechanism 706, so that rack gear 7062 reliably drives the first bullet Property the part 703 and compression of the second elastic component 704 and the quickly and accurately pedal force and pedal travel of simulating brake pedal 700.

Optionally, the transmission mechanism includes the deceleration mechanism connecting with the output shaft 7011 of the assist motor 701, The gear shaft 7061 is connect with the output end of the deceleration mechanism.Here, deceleration mechanism can use various structures, such as It can be using turbine worm reducer structure, gear pair deceleration mechanism or planet gear reducing mechanism etc., so as to improve transmission effect Rate.In the present embodiment, optionally, the deceleration mechanism is gear pair deceleration mechanism 707, the gear pair deceleration mechanism 707 It is engaged including the first gear 7071 being connect by transmission shaft 7073 with the output shaft 7011 and with the first gear 7071 Second gear 7072, the second gear 7072 is arranged on the gear shaft 7061.The output of assist motor 701 as a result, Torque passes sequentially through first gear 7071, second gear 7072 and power-assisted gear 7063 and passes to rack gear 7062, so that rack gear 7062 can successively drive the first elastic component 703 and the second elastic component 704 axially compressed, so as to simulating brake pedal 700 pedal force and pedal travel.By gear pair deceleration as described above, mechanism enables to brake pedal simulator structure Simply and have the effect of easy to maintain.In above structure, although first gear 7071 and second gear 7072 use straight-tooth Wheel, but it's not limited to that for the disclosure, for example, above-mentioned first gear 7071 and second gear 7072 can be matched using bevel gear Close structure.

Optionally, the transmission shaft 7073 is parallel with the gear shaft 7061, the assist motor 701 and the deceleration Arrangement of mechanism is in the two sides in the radial direction of the rack gear 7062.So that the arragement construction of brake pedal simulator is more stepped up It gathers and rationalizes.But it's not limited to that for the disclosure, the reasonable design power-assisted electricity according to the type of used deceleration mechanism Arrangement between machine 701, deceleration mechanism and gear and rack teeth mechanism 706.

Optionally, the assist motor 701, the deceleration mechanism and the gear and rack teeth mechanism 706 are located at the dress Correspond to the side of second elastic component 704 with portion 705.Thus spiral shell is utilized by department of assembly 705 in brake pedal simulator The fasteners such as bolt 7051 are assembled in the state of vehicle body, and assist motor 701, deceleration mechanism and gear and rack teeth mechanism 706 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 be sent out in the case where not conflicting Changing, and these variations are all fallen in the interest field of the disclosure.

Optionally, as shown in figure 14, the thrust structure 702 includes being articulated with the first thrust of the brake pedal 700 Bar 7021 and the second distance rod 7022 for being articulated with first distance rod 7021, second distance rod 7022 are formed as bulb spiral shell Bolt, the bulb 7023 of second distance rod 7022 and 710 cambered surface of the first spring base cooperate.It is stepped on as a result, in driver When brake pedal 700 brings it about change in displacement, the first distance rod 7021 and the second distance rod 7022 are also subjected to displacement change therewith Change, and cooperated by the cambered surface of the bulb 7023 of the second distance rod 7022 and the first spring base 710, enables to the second thrust Bar 7022 adapts to angle change, prevents movement interference phenomenon.Optionally, the radius of curvature of the bulb 7023 is less than institute State radius of curvature of first spring base 710 corresponding to the arc mating surface of the bulb 7023.Permit in the appropriate range as a result, Perhaps the arc mating surface of the bulb 7023 of the second distance rod 7022 and the first spring base 710 occurs relative motion and to brake Transmission process between pedal 700, thrust structure 702, the first elastic component 703 and the second elastic component 704 is more smooth.But It's not limited to that for the disclosure, and the fit form between thrust structure 702 and the first spring base 710 can be using other rationally Structure, such as the second distance rod 7022 and spring base 710 can using ball pair fit form, universal joint type of attachment or The form of the end face of the first spring base 710 is directly connected to using the second distance rod 7022.

Optionally, the hinged end of second distance rod 7022 is provided with the hinged seat 7024 of U-shaped, the hinged seat 7024 Both side plate on be respectively formed with hinge hole 7025, second distance rod 7022 penetrates through the bottom plate of the hinged seat 7024 It 7026 and is threaded on the bottom plate 7026 by the nut 7027 that is arranged on the bottom plate 7026 with can be along axial tune Whole position.Wherein, the second distance rod 7022 by the hinge hole 7025 on hinged seat 7024 with the first distance rod 7021 hingedly, In addition, brake pedal 700 can be adjusted by being threadedly engaged by nut 7027 on bottom plate 7026 and the second distance rod 7022 Pedal preset force and slack of pedal.But it's not limited to that for the disclosure, can also adjust braking by other forms herein The pedal preset force and slack of pedal of pedal 700, for example, can be by 7022 cloth of the first distance rod 7021 or the second distance rod Be set to can be axially retractable and the stretching structure that positions (such as the loop bar that is mutually threadedly engaged and loop bar can be set in The structure of casing on outer peripheral surface) by adjusting pedal preset force and slack of pedal in a manner of flexible.

Optionally, the brake pedal simulator further includes the control for controlling the working condition of the assist motor 701 The sensor 709 of device 708 processed and the revolving speed for detecting the assist motor 701.In driver's brake pedal 700 When, thrust structure 702 drives the first elastic component 703 axially compressed, and thrust structure 702 can also pass through in the process The rack gear 7062 of gear and rack teeth mechanism 706 makes the first elastic component 703 and the second elastic component 704 cooperate and drive the second elasticity Part 704 is axially compressed, in the process thrust structure 702 successively by the first elastic component 703 provide opposition and The opposition that first elastic component 703 and the second elastic component 704 provide, and controller 708 can root in this course of work Reach preset value according to the brake pedal force that this opposition acts on brake pedal 700 to control starting assist motor 701, make its output torque pass sequentially through gear pair deceleration mechanism 707, gear teeth when controller 708 starts assist motor 701 Mechanism 706 is transmitted to the first elastic component 703 or is transmitted on the first elastic component 703 and the second elastic component 704, to be Brake pedal 700 and thrust structure 702 provide power-assisted, in the state that the first elastic component 703 and the second elastic component 704 cooperate, Gear and rack teeth mechanism 706 can compress the first elastic component 703 during further the second elastic component 704 of compression simultaneously, make 702 further occurrence change in displacement of brake pedal 700 and thrust structure is obtained, and at this time since gear and rack teeth mechanism 706 is born A part of opposition provided by the first elastic component 703 and the second elastic component 704, thus, it is possible to reduce thrust structure 702 The opposition being subject to, so that brake pedal 700 obtains suitable brake pedal force, so as to simulate brake pedal 700 pedal force and the target value of pedal travel.Wherein, sensor 709 is used for the revolving speed of real-time detection assist motor 701 simultaneously Controller 708 can be fed back in real time can monitor the pedal travel of brake pedal 700 in real time, thus, it is possible to mention The functional reliability of high brake pedal simulator.But the disclosure is not particularly limited to this, can come according to the actual situation specific Design the mode that controller 708 controls assist motor 701.

Optionally, as shown in figure 15, the brake pedal simulator includes shell 720, which includes the dress First shell portion 7201 with portion 705 and for accommodating the gear and rack teeth mechanism 706, for accommodating the assist motor 701 second shell portion 7202 and third housing section 7203 for accommodating second elastic component 704, the department of assembly 705, first shell portion 7201, second shell portion 7202 and third housing section 7203 are interconnected.Wherein the second elastic component The opening that 704 end abutment has side open in the inner end wall of third housing section 7203, first shell portion 7201, it is described Department of assembly 705 and the first shell portion 7201 cooperate.Wherein, first shell portion 7201, second shell portion 7202 and third shell Body portion 7203 can be assembled integrally by fasteners such as bolts, and second shell portion 7202 and third housing section 7203 can To be located at the opposite side in first shell portion 7201.But it's not limited to that for the disclosure, and the shell 720 can also use other Structure appropriate.Furthermore it is possible to which the open side in first shell portion 7201 has been provided projectingly along short transverse spaced apart One locking platform 7205 and second engages platform 7206, is formed in the department of assembly 705 prominent towards open side limit outstanding 7052 are played, realizes and will fill in such a way that restriction protrusion 7052 to be embedded into the first locking platform 7205 and the second locking platform 7206 It is quickly navigated in first shell portion 7201 with portion 705, to realize quick assembling.To make by structure as described above Dynamic pedal simulator has the effect of characteristics of compact layout and realizes modularized design.

On the basis of the brake pedal simulator provided based on above-mentioned first to third embodiment, according to the another of the disclosure On the one hand, a kind of brake system of car is also provided, the brake system of car includes first any one into third embodiment Kind brake pedal simulator.Optionally, the brake system of car includes brak control unit, the brak control unit according to The real-time pedal force or pedal travel of the brake pedal control the working condition of the assist motor.In brak control unit In the case where the working condition for controlling assist motor according to the real-time pedal force of brake pedal, to the automobile brake of the disclosure The braking process of system is illustrated.When automobile is braked, driver operates brake pedal and is input to braking instruction On disclosure brake pedal simulator as described above, wherein in driver's brake pedal, in brake pedal simulator Thrust structure drive the elastic component for providing preset force in multiple elastic components for brake pedal axially compressed (here, when described Multiple elastic components are using the first elastic component and the second elastic component as described in first embodiment to third embodiment and two When resilient element connected in parallel arrangement, thrust structure drives the first elastic component and/or the second elastic component successively to compress along axial direction), it pushes away Opposition of the power structure by partial elastic part or the offer of all elastic part in the multiple elastic component, and when this When the brake pedal force that opposition acts on brake pedal reaches preset value, brak control unit is controlled to as described above Device processed sends the instruction of starting assist motor.The torque that it is exported after assist motor starting is transmitted to by being driven matching mechanism Elastic component drives elastic component further to be compressed, so that braking is stepped on can provide power-assisted for brake pedal and thrust structure Plate and thrust structure further occurrence change in displacement, and since transmission matching mechanism bears a part applied by elastic component Opposition.The opposition being subject to thus, it is possible to reduce thrust structure, so that brake pedal obtains suitable braking and steps on Plate power, so as to simulate the pedal force of brake pedal and the target value of pedal travel.Controller believes pedal force as a result, Number and the information such as pedal travel signal be transferred on brak control unit, brak control unit is judged to drive according to the signal The braking intention (for example, service brake or parking braking, deceleration etc.) for the person of sailing, at the same time, brak control unit pass through corresponding Sensor receive wheel rotation speed signals, the electric current of motor and rotor-position signal, car speed letter in brake actuator Number.Optimal brake pedal force needed for brak control unit calculates each wheel according to above- mentioned information in real time as a result, simultaneously issues phase The control signal answered, 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 system of brake pedal and being provided with brake pedal simulator as described above as a result, Dynamic pedal force and braking distance, to provide good brake feel for driver.In addition, passing through braking control as described above Method processed realizes simulating brake pedal characteristic, and by assist motor and transmission matching mechanism existing hydraulic to replace Brake component 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 Well, brake pedal responds rapid and other effects.

Seven 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 It in the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the disclosure is to various No further explanation will be given for possible combination.

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

1. a kind of brake pedal simulator, which is characterized in that the brake pedal simulator includes brake pedal (600), power-assisted electricity Machine (601), the department of assembly (605) for being assembled on vehicle body, the axially spaced apart side in the department of assembly (605) First elastic component (603) and the second elastic component (604) are located at first elastic component (603) and second elastic component (604) Between gear and rack teeth mechanism (606), be articulated with the brake pedal (600) and can successively drive first elastic component (603) and second elastic component (604) is along the thrust structure (602) of the axial stretching, and first elastic component (603) is The brake pedal (600) provides pedal preset force, and the output shaft (6011) of the assist motor (601) passes through the gear teeth Mechanism (606) can cooperate with second elastic component (604), can provide for the driving of the thrust structure (602) Power-assisted, wherein the brake pedal simulator has the first working condition and the second working condition, in first working condition Under, by the thrust mechanism (602) first elastic component (603) is compressed, under second working condition, leads to The cooperation of the thrust structure (602) and the assist motor (601) is crossed so that first elastic component (603) and described second Elastic component (604) synchronization is compressed.

2. brake pedal simulator according to claim 1, which is characterized in that gear and rack teeth mechanism (606) driving During second elastic component (604) compression first elastic component (603) is synchronously compressed.

3. brake pedal simulator according to claim 1, which is characterized in that the gear and rack teeth mechanism (606) includes Gear shaft (6061) and rack gear (6062), the gear shaft (6061) and the output shaft (6011) of the assist motor (601) connect The power-assisted gear (6063) engaged with the rack gear (6062) is connect and is provided with, the first end of the rack gear (6062) is connected to institute The first elastic component (603) are stated, under second working condition, the second end of the rack gear (6062) and second elastic component (604) it separates, under second working condition, the second end of the rack gear (6062) is supported with second elastic component (604) It connects.

4. brake pedal simulator according to claim 3, which is characterized in that first elastic component (603) and described Second elastic component (604) is helical spring.

5. brake pedal simulator according to claim 4, which is characterized in that the brake pedal simulator includes spring Seat (610), the spring base (610) include with the first flange (611) of the thrust structure (602) cooperation, from first flange (611) the first extension rod (612) for installing first elastic component (603) for successively extending along the axial direction, for shape At the second extension rod (613) of the rack gear (6062) and the second flange for abutting second elastic component (604) (614), one end of first elastic component (603) is connected to first flange (611), and first elastic component (603) The other end corresponding to second elastic component (604) is connected in the shell (620) of the brake pedal simulator, and described the One end of two elastic components (604) is connected to second flange (614), and the other end can be connected in the shell (620).

6. brake pedal simulator according to claim 5, which is characterized in that the thrust structure (602) includes hinged In the brake pedal (600) the first distance rod (6021) and be articulated with the second distance rod of first distance rod (6021) (6022), which is formed as ball stud, the bulb (6023) of second distance rod (6022) and institute State the cooperation of spring base (610) cambered surface.

7. brake pedal simulator according to claim 6, which is characterized in that the radius of curvature of the bulb (6023) is small Correspond to the radius of curvature of the arc mating surface of the bulb (6023) in the spring base (610).

8. brake pedal simulator according to claim 6, which is characterized in that second distance rod (6022) it is hinged End is provided with the hinged seat (6024) of U-shaped, is respectively formed with hinge hole (6025) on the both side plate of the hinged seat (6024), described Second distance rod (6022) penetrates through the bottom plate (6026) of the hinged seat (6024) and by being arranged on the bottom plate (6026) Nut (6027) be threaded on the bottom plate (6026) with can be along axially adjustable position.

9. brake pedal simulator according to claim 6, which is characterized in that second distance rod (6022) is close to institute The part for stating bulb (6023), which is arranged with, engages seat (6028), circumferentially spaced on the outer peripheral surface of the locking seat (6028) to be disposed with Axially extending multiple locking protrusions (6029), the spring base (610) one end corresponding with locking seat (6028) are formed There is the locking groove (6101) with the locking protrusion (6029) cooperation.

10. the brake pedal simulator according to any one of claim 3-9, which is characterized in that the assist motor (601) output shaft (6011) is connect by deceleration mechanism with the gear shaft (6061).

11. brake pedal simulator according to claim 10, which is characterized in that the deceleration mechanism is planetary gear deceleration Mechanism (607), in the planet gear reducing mechanism (607), the output shaft of sun gear (6071) and the assist motor (601) (6011) it connects, planet carrier (6072) is connect with the gear shaft (6061), and gear ring (6073) is fixed on the brake pedal mould In the shell (620) of quasi- device.

12. brake pedal simulator according to claim 1, which is characterized in that the brake pedal simulator further includes using In the controller (608) for the working condition for controlling the assist motor (601) and for detecting the assist motor (601) The sensor (609) of revolving speed.

13. brake pedal simulator according to claim 1, which is characterized in that the brake pedal simulator includes shell Body (620), the shell (620) include the department of assembly (605), for accommodating first elastic component (603), the gear teeth The first shell portion (6201) of mechanism (606) and second elastic component (604) and for accommodating the assist motor (601) second shell portion (6202), the brake pedal (600) and the thrust structure (602) are from the department of assembly (605) Expose, is formed on the inner peripheral surface of the first shell portion (6201) for positioning first elastic component (603) corresponding to institute State the step (6203) of one end of the second elastic component (604).

14. a kind of brake system of car, which is characterized in that the brake system of car includes any in -13 according to claim 1 Brake pedal simulator described in.

15. brake system of car according to claim 14, 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.

16. a kind of vehicle, which is characterized in that the vehicle includes brake system of car according to claim 14 or 15.