CN105015531A - Brake system for vehicle and vehicle having same - Google Patents
Brake system for vehicle and vehicle having same Download PDFInfo
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- CN105015531A CN105015531A CN201510171081.6A CN201510171081A CN105015531A CN 105015531 A CN105015531 A CN 105015531A CN 201510171081 A CN201510171081 A CN 201510171081A CN 105015531 A CN105015531 A CN 105015531A
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Abstract
The invention provides a brake system for a vehicle. The brake system comprises a hydraulic brake unit having a brake main cylinder and configured to decelerate the vehicle through hydraulic braking, and further comprises a brake pedal, a pedal movement sensor, a control unit and a brake feeling feedback generation unit, wherein the pedal movement sensor is used for obtaining movement state information of the brake pedal in stepping; the brake feeling feedback generation unit comprises a linear electromagnetic driver set as a vehicle brake feedback feeling generation mechanism, and generates resistance of blocking the advancement of the brake pedal in response to the operation of a driver to the brake pedal of the vehicle; the resistance is applied to the brake pedal in a direct or indirect transmission manner; and the control unit is used for generating a driving signal of the linear electromagnetic driver based on the movement state information of the brake pedal. The brake system, provided by the invention, can realize the pedal brake feeling feedback in an advantageous mode when brake demands are generated.
Description
Technical field
Various aspects of the present invention relate at vehicle, the regeneration brake system especially used in pure electric vehicle, hybrid electric vehicle and plug-in hybrid electric vehicles, in particular to for vehicle brake system and there is the vehicle of this system.
Background technology
Different from the combustion engine of routine, elec. vehicle (EV), such as pure electric vehicle, hybrid electric vehicle and plug-in hybrid electric vehicles, that one at least employs battery (or electric capacity, hydrogen cell etc.) and preserve electric energy in the battery as vehicle drive force and at least employ electrical motor and to advance the vehicle driven as vehicle, it adopts alternative power as the propulsion source of vehicle thus reduces the pollution that brings of Vehicular exhaust, also prepares for limited oil resources and/or natural gas source shortage simultaneously.
Studying now and converting the braking force of part to electric energy, so for obtaining electric energy and charging to electrical energy storage device such as battery, electric capacity etc., in this way, in the braking procedure of vehicle, the part kinetic energy of being run by vehicle in process is used for driving a producer (such as electrical motor) thus is reducing kinetic energy (namely, underspeed) while produce electric energy storing, this mode being used for abrupt deceleration vehicle is called regenerative brake.In braking procedure, can inverted driven motor or one independently producer carry out generating electric energy.The driving process of this part electric energy stored such as after vehicle is converted to kinetic energy as propulsion source again by the electrical motor being used as now motor operation, or is used as the propulsion source of other institution staff on vehicle.
Adopt the Regenerative Braking Technology of this sample loading mode, the travelled distance number of vehicle can be improved, improve the efficiency of fuel, and when hybrid vehicle, while raising travelled distance number, generation and the discharge of pernicious gas can also be reduced, benefit environmental protection.
The braking realized based on above-mentioned regenerative brake mode needs a composite braking system usually to realize complete car brakeing by hydraulic pressure, in order to meet the braking hope of vehicle driver, namely in order to obtain the braking amount suitable with the summation of regenerative braking force and hydraulic braking force that vehicle driver requires, adopt the composite braking system (namely brake off pedal is connected the decoupling zero with attainment brake hydraulic pressure and pedal stroke with the solid mechanical between brake master cylinder piston) of decoupling zero mode, after deducting the regenerative braking force produced by electrical motor the braking force that must require from driver, only produce required hydraulic braking force.
But, vehicle driver can be caused like this to experience strange brake pedal feel, such as, feel and step on the problem that sky or stop mechanism lost efficacy, thus accelerate or trample further to improve braking force, cause erroneous judgement, therefore need ill effect is minimized.
In prior art, work out relevant technology to strengthen when regenerative brake is had an effect, make the brake pedal feel that driver experiences, such as No. 200614052771.8 Chinese patent proposes a kind of regenerative braking method for the vehicle with electrical motor, by provide at the entrance and exit place of each wheel cylinder the access valve of often opening type and normal close type outlet valve and the access valve controlling drive wheel according to the difference of pressure between the pressure in master brake cylinder and wheel pressure in braking procedure obtains the brake pedal feel of vehicle driver, and the outlet valve controlling drive wheel follows goal pressure to allow wheel of vehicle pressure, and in order to improve brake fluid pressure, by opening the opening/closing valve that the hydraulic tubing between oil storage cylinder and Hydraulic Pump provides, and operate motor directly to pump the brake noise of required flow velocity in oil storage cylinder, the brake pedal feel identical with conventional truck is retained with this.
But, in the scheme of the disclosure, control to obtain brake pedal feel by the difference of pressure between the pressure in master brake cylinder and wheel pressure, the detection of the access valve wherein designed, outlet valve and pressure is still a kind of comparatively complicated hydraulic control mode, and its efficiency and reliability remain to be confirmed.
Although the defect existing for car brakeing sense feedback the foregoing described on the vehicle with regenerative brake or deficiency, these defects or deficiency still can be present on general motor vehicle braking system, especially such as have on the vehicle of line control system, and be not only on elec. vehicle.
Summary of the invention
The object of the invention is to provide a kind of brake system for vehicle, utilizes this system can provide preferably Brake feedback sensation when braking.
Above-mentioned purpose of the present invention is realized by the technical characteristic of independent claims, and dependent claims develops the technical characteristic of independent claims with alternative or favourable mode.
For reaching above-mentioned purpose, a first aspect of the present invention discloses a kind of brake system for vehicle, comprise a hydraulic brake unit with master brake cylinder to be arranged to and to make car retardation by hydraulic braking, this brake system also comprises brake pedal, pedal travel sensor, control unit and brake feel feedback generation unit, wherein:
Pedal travel sensor, for obtaining movement state information when brake pedal is trampled;
Brake feel feedback generation unit, comprises the feedback feeling generation mechanism that a straight line electromagnetic driver is provided as car brakeing, its resistance advanced to produce obstruction brake pedal to the operation of the brake pedal of vehicle in response to driver;
Control unit, for producing the drive singal of described linear electromagnetic actuator based on described brake pedal movement state information.
In further embodiment, described vehicle also comprises a regeneration brake system and is arranged to and makes car retardation by regenerative brake, and described control unit is also arranged for the distribution performing hydraulic braking moment of torsion and regenerative braking torque according to the described operation of driver.
In further embodiment, described control unit is also arranged for the distribution performing hydraulic braking moment of torsion and regenerative braking torque according to the described operation of driver, and priority allocation regenerative braking torque makes vehicle preferentially be used regenerative brake to slow down.
In further embodiment, this brake system also comprises:
At least one elasticity recovers mechanism, be provided as the second feedback feeling and produce mechanism for producing the resistance hindering described brake pedal to advance when braking requirement occurs, this at least one elasticity recovery mechanism and described linear electromagnetic actuator co-localization are in the braked channel of vehicle.
In further embodiment, at least one elasticity described recovers mechanism more close to described brake pedal.
In further embodiment, described elasticity recovery mechanism construction is at least one in coil spring, return spring.
Another aspect of the present invention also proposes a kind of vehicle, comprises the oil-burning machine drive system for driving vehicle to advance, and this comprises the aforesaid brake system for vehicle.
In further enforcement, also comprise the motor driven systems providing vehicle to advance driving by motor.
Another aspect of the present invention also proposes a kind of elec. vehicle, comprises a motor driven systems providing vehicle to advance driving by motor, also comprises the aforesaid brake system for vehicle.
As long as should be appreciated that aforementioned concepts and all combinations of extra design described in further detail below can be regarded as a part for subject matter of the present disclosure when such design is not conflicting.In addition, all combinations of theme required for protection are all regarded as a part for subject matter of the present disclosure.
The foregoing and other aspect of the present invention's instruction, embodiment and feature can be understood by reference to the accompanying drawings from the following description more all sidedly.Feature and/or the beneficial effect of other additional aspect of the present invention such as illustrative embodiments will be obvious in the following description, or by learning in the practice of the detailed description of the invention according to the present invention's instruction.
Accompanying drawing explanation
Accompanying drawing is not intended to draw in proportion.In the accompanying drawings, each identical or approximately uniform component part illustrated in each figure can represent with identical label.For clarity, in each figure, not each component part is all labeled.Now, the embodiment of many aspects of the present invention also will be described with reference to accompanying drawing by example, wherein:
Fig. 1 is the schematic diagram of the brake system for vehicle provided by the invention.
Fig. 2 is another schematic diagram for the brake system of vehicle provided by the invention.
Fig. 3 is the schematic diagram of the combined regenerative braking system for vehicle provided by the invention.
Fig. 4 is the system schematic after increase guide piece on the basis of the example shown in Fig. 3.
Fig. 5 is the schematic diagram of the combined regenerative braking system of the 3rd embodiment provided by the invention.
Detailed description of the invention
In order to more understand technology contents of the present invention, institute's accompanying drawings is coordinated to be described as follows especially exemplified by specific embodiment.
Each side with reference to the accompanying drawings to describe the present invention in the disclosure, shown in the drawings of the embodiment of many explanations.Embodiment of the present disclosure must not be intended to comprise all aspects of the present invention.Be to be understood that, multiple design presented hereinbefore and embodiment, and describe in more detail below those design and embodiment can in many ways in any one implement, this is because design disclosed in this invention and embodiment are not limited to any embodiment.In addition, aspects more disclosed by the invention can be used alone, or when they each other not contradiction and conflict otherwisely anyly appropriately combinedly to use with disclosed by the invention.
In the disclosure, Fig. 1 exemplarily illustrates a schematic diagram for the brake system 100 of vehicle, this vehicle can be such as vehicle, the vehicle of fuel cell-driven, the vehicle etc. of core electrical energy drive that conventional oil-burning machine drives, include a control unit 110 being suitable for controlling car brakeing and one apply for the control according to described control unit 110 hydraulic brake system 130 that hydraulic braking moment of torsion makes car brakeing.Usually, this hydraulic brake system 130 is configured with a master brake cylinder 131.
Hydraulic brake system 130, such as, example shown in Fig. 1, is configured to the hydraulic brake system that includes master brake cylinder 131, and master brake cylinder 131 is configured to be suitable for applying hydraulic braking moment of torsion to make car retardation to this vehicle.Simultaneously, this hydraulic brake system is also configured with a piston 131a, be pushed for controllably (control that as shown in Figure 1, this piston 131a is subject to a control unit 110 is driven by supercharging actuator 132 then) and produce transmission and/or the distribution of hydraulic pressure.
In Fig. 1, this brake system 100 further comprises a brake pedal 150 and produces braking requirement for receiving the stampede operation of driver, one first connecting rod 153 is connected with brake pedal 150 by linkwork, and when brake pedal 150 is depressed, this first connecting rod 153 produces corresponding stroke.
Should be appreciated that aforesaid first connecting rod 153 is as the first force transfer mechanism, is not limited to structure as shown in Figure 1.In some instances, first connecting rod 153 can be configured to the linear structure of the transmission of accomplish linear motion, also can be other structures that sense of motion changes, as L structure, be convenient to the layout of whole device in vehicle like this, otherwise long to the length of master brake cylinder 131 from brake pedal 150.Take L structure laterally (driving compartment can be parallel to) and arrange all parts from the first force transfer mechanism to master brake cylinder 131.
In the brake system example shown in Fig. 1, the braked channel of vehicle is also provided with a straight line electromagnetic driver 140, the feedback feeling that this linear electromagnetic actuator 140 is provided as car brakeing produces mechanism, its resistance advanced to produce obstruction brake pedal 150 to the operation of the brake pedal of vehicle in response to driver, this resistance is applied on brake pedal 150 in the mode directly or indirectly transmitted.
In Fig. 1, control unit 110 obtains the brake torque needed for (such as by modes such as calculating) driver in response to driver for the operation of brake pedal 150, and by driving supercharging actuator 132 then to promote brake master cylinder piston 131a motion.
In the brake system 100 of this example, by the linear electromagnetic actuator 140 arranged, be arranged in braked channel, driven and given the obstruction resistance that brake pedal 150 advances, namely when brake pedal 150 is depressed, there is provided resistance (such as showing as thrust) by this linear electromagnetic actuator 140 and be passed to brake pedal 150 by aforesaid first connecting rod 153, feeding back to driver to provide brake feel.
As shown in Figure 1, aforesaid braked channel is formed primarily of brake pedal 150, first connecting rod 153, supercharging actuator 132, master brake cylinder 130, certainly other parts do not indicated also are comprised, such as in-cylinder pressure balance channel, voltage supply path/pipeline, wheel braking performer etc., the hydraulic actuating cylinder of each wheel also can be comprised time necessary, these devices or component part all adopt existing design, and its structure, structure, connection and function are all existing general design, repeat no more.
The linear electromagnetic actuator 140 that the aforementioned feedback feeling as car brakeing produces mechanism is arranged in this braked channel, for providing aforesaid resistance to be applied to brake pedal 150.
As shown in Figure 1, in this example, brake pedal 150, by the incipient stage depressed, is formed mechanically decoupled between the piston 131a of the master brake cylinder 131 of brake pedal 150 and hydraulic brake system 130.
Alternatively, linear electromagnetic actuator 140 is configured to produce aforesaid resistance according to the drive singal based on the brake torque required by driver, such as, when braking requirement produces, between the resistance that the obstruction brake pedal that the required brake torque of driver and linear electromagnetic actuator 140 give advances, be configured to the corresponding relation according to setting.This corresponding relation can be certain functional relation, such as linear change, nonlinearities change, or can be change according to the form mapping relations of setting.
Certainly, in other examples, such as when the braking distance of brake pedal 150 increases, cause being formed between the piston 131a of the master brake cylinder 131 of itself and hydraulic brake system 130 mechanical decoupled state when removing, control unit 110 mechanically directly feeds back to the thrust of brake pedal 150 in response to the brake torque required by driver and hydraulic brake system and produces drive singal.In these examples, except according to except the brake torque required by driver, also the braking mode according to vehicle is determined the drive singal of linear electromagnetic actuator 140.
Control unit 110, such as, can be configured to an ECU in vehicle electric element control system, certainly when necessary or suitable, also can be the set of one group of such as multiple ECU.
Brake torque required by aforementioned driver, it can be the movable information based on brake pedal 150, the movable information of the brake pedal such as obtained by motion sensor, comprise the electric signal that angular transducer and/or pedal stroke sensor and/or speed sensor obtain, carry out computing by control unit 110 and obtain.
These illustrational motion sensors, obviously, in order to the movement state information obtaining vehicle brake pedal is arranged.
Movement state information depends on brake pedal 150 by the information such as stroke and/or angle position depressed.Certainly if necessary, speed and/or the acceleration information of brake pedal can also be comprised.
In this example, linear electromagnetic actuator 140 comprises a movable part 140a and fixed part 140b.The other end of aforesaid first connecting rod 153 is connected with the movable part 140a of this linear electromagnetic actuator 140.
As shown in Figure 1, in this example, as favourable mode, between the movable part 140a and described first connecting rod 153 of aforesaid rectilinear electromagnetic driver 140, be provided with a pushing part 160, the other end of aforementioned first connecting rod 153 is configured to be connected with the movable part 140a of linear electromagnetic actuator 140 by this pushing part 160.As Fig. 1, the other end of first connecting rod 153 is connected with pushing part 160.
Aforementioned pushing part 160 is configured to link with the movable part 140a of linear electromagnetic actuator 140.
The thrust that the movable part 140a of linear electromagnetic actuator 140 produces is passed on first connecting rod 153 by this pushing part 160, thus is applied to further on brake pedal 150.
Shown in composition graphs 1, in example of the present disclosure, when brake pedal 150 is depressed, formed mechanically decoupled between the piston 131a of the master brake cylinder 131 of brake pedal 150 and hydraulic brake system 130.In this example, formed mechanically decoupled between the piston 131a realizing the master brake cylinder 131 of brake pedal 150 and hydraulic brake system 130 by leaving a space between described pushing part 160 and the driven part 133 of supercharging actuator 132.
As favourable mode, aforesaid pushing part 160 is preferably configured to horizontal " convex " shape structure, there is a body 160a for being fixedly connected with the movable part 140a of linear electromagnetic actuator 140, such as by realizations such as bolts, and a salient 160b, be configured to the shape protruding aforementioned body 160a, and protrude towards the direction of the piston 131a of the master brake cylinder 131 of described hydraulic brake system 130.In this example, the path between the piston 131a of this salient 160b and master brake cylinder 131 leaves space mechanically decoupled with what formed between the piston 131a of the master brake cylinder 131 of hydraulic brake system 130 and brake pedal 150.
Certainly, in other example, aforesaid pushing part 160 also can not be set, but directly connect (such as this movable part 140a and/or first connecting rod 153 are designed to be suitable for fit in together with structure) with aforesaid movable part 140a by first connecting rod 153, and at this linear electromagnetic actuator 140 controllably by (such as controlling to drive via a control unit 110) during driving, the resistance hindering brake pedal 150 to advance is produced by its movable part 140a, and between this movable part 140a and the driven part 133 of aforementioned supercharging actuator 132, leave space, when aforesaid brake pedal 150 is depressed, this movable part 140a is promoted when moving towards described piston 131a by first connecting rod 153, can not immediately power be delivered on this piston, what realize between piston and brake pedal is mechanically decoupled.
As shown in Figure 1, in example of the present disclosure:
Label 131c exemplarily describes and compensates liquid filling.
When being necessary, label 131d and 131e exemplarily describes front axle brake master cylinder and rear axle master brake cylinder.
Label 151 exemplarily indicates aforesaid angular transducer, label 152 exemplarily indicates aforesaid pedal stroke sensor, the position of these two sensors is exemplary in the example shown, in the implementation procedure of multiple scheme of the present invention, its position is variable, and all reasonably arrange and are related personnel institute and understand and easily realize.
The movable part 140a of the linear electromagnetic actuator of aforementioned description, can be configured to elementary, and now aforesaid fixed part 140b is then configured to secondary.Certainly, in other embodiment, aforesaid movable part 140a can also be configured to secondary, then aforesaid fixed part 140b is then configured to elementary.
It is worth mentioning that, linear electromagnetic actuator 140 can arrange self linear motion guide device usually, and linear electromagnetic actuator itself is dissolved in the design of this guide piece usually, repeats no more in the disclosure.
In example shown in earlier figures 1, cylindrical case 141 between the movable part 140a of linear electromagnetic actuator 140 and fixed part 140b can be used as the shell of linear electromagnetic actuator, meanwhile, this shell also can for the component part of brake system 100 provides support and/or the effect such as protection simultaneously or together with other shell component.
In order to more be conducive to the stampede operation of brake pedal, aforesaid cylindrical case 141 can not be closed, and can be arranged to uncovered or not exclusively closed, or leave air extractor vent position etc.
In order to advantageously form whole brake system, consideration such as in leak tightness, dust-proof, clean, accuracy, aforementioned cylindrical case can be designed to close, and now can remain on the environment of a high level of cleanliness in the inside of cylindrical case 141, meets the requirements such as dust-proof, waterproof.
As shown in Figure 1, such as in the example being provided with pushing part 160, especially need be pushed portion 160 separated cylindrical case 141 inside two cavitys between air pressure balance path is set, such as gas passing hole is set on pushing part 160, to keep the air pressure balance of both sides, pushing part 160 when moving in this pushing part 160.Certainly, the through hole of band filter screen also can be set simultaneously on the sidewall of cylindrical case 141.
Certainly, in some other examples, aforementioned air pressure balance path can also be realized by additional exterior line, the pipeline that at least one connects such as is set on the sidewall of the cylindrical case 141 corresponding to two chambers, by pipeline connect aforementioned be pushed portion 160 separated cylindrical case 141 inside two cavitys between air pressure balance, in some instances, a row pipeline can be arranged realize balance, preferred scheme on pushing part 160, arranges gas passing hole to realize air pressure balance, volume can be reduced like this, expendable weight, be conducive to manufacturing.
Preferably, in other example, can also arrange at least one services aperture on the sidewall of aforementioned cylindrical case 141, for such as adding lubricant, purging medium etc., this services aperture also configures one for removably sealing the seal cover cap of services aperture.
Figure 2 shows that the system schematic increase guide piece on the basis shown in Fig. 1 after, in the brake system 100 of this example, also comprise a guide piece 170, for providing the motion guide of the movable part 140a of described pushing part 160 and/or linear electromagnetic actuator.
This guide piece 170 can be configured in multiple position, such as, in this example, between the body 160a in described pushing part 160 and described piston 131a.
In the example shown in Fig. 2, the parts of the through hole that the pushing part 160b that guide piece 170 is configured to have pushing part 160 described in a tolerable passes through.
In some other examples, this guide piece 170 can also be configured to the spherical structure of honeycomb and configure a pilot bar be inserted in honeycomb structure, and pilot bar penetrates in pushing part 160 simultaneously, realizes the motion guide of pushing part 160.
Certainly, in this example, aforesaid cylindrical case if sealing, then also need be formed on guide piece 170 or arrange and allow the structure that gas passes through, such as through hole etc., to make the air pressure balance of seal chamber inside.
In example shown in Fig. 2, for strengthening the reliability of Brake feedback, the brake pedal feedback neutralization that prevents linear electromagnetic drives fail from bringing, one recovery mechanism 180 is also set between hydraulic brake system 130 and brake pedal 150, for being provided in the resistance that when braking requirement produces, (brake pedal 150 is depressed) hinders brake pedal 150 to advance, with the realization making this recovery mechanism 180 and described linear electromagnetic actuator 140 jointly or separately provide brake pedal feel.
In this example, aforesaid linear electromagnetic actuator 140 is by as one first brake pedal feel feedback mechanism, and this recovery mechanism 180 forms one second brake pedal feel feedback mechanism.
In the representative configuration figure of the brake system 100 shown in Fig. 2, with the function of each component part in earlier figures 1, constituent elements, part that effect is all identical or substantially identical or construct and all adopt identical label to represent, its specific implementation repeats no more in the present embodiment.
Preferably, recover mechanism 180 and adopt elasticity recovery mechanism to realize, such as coil spring, reed, return spring etc.In this example, this recovery mechanism 180 is configured to a coil spring.
In this example, in Fig. 2, exemplarily illustrate only a coil spring, certainly when being necessary, more coil spring can also be used realize, no matter be by these coil spring arranged in parallel or serial arrangement, all can realize aforesaid function and effect.
As shown in Figure 2, in this example being provided with guide piece 170, this coil spring 180 is between guide piece 170 and the body 160a of pushing part 160, and its one end can engage with body 160a, and the other end and guide piece 170 are fixed.Certainly, in necessary or suitable, coil spring 180 can be not exclusively all adopt with both the mode be fixedly connected with, but free-standing and when needs (such as when brake pedal 150 is depressed) produced resistance by compressing.
As shown in Figure 2, the aforementioned coil spring 180 as the second brake pedal feel feedback mechanism and linear electromagnetic actuator 140 co-localization are in described braked channel, and coil spring 180 is more close to described brake pedal.Failure-free brake feel feedback more is so provided to realize.
Certainly, in other example, the aforementioned spring 180 as the second brake pedal feel feedback mechanism can also be to otherwise, such as parallel, nested etc., make when brake pedal is trampled, this spring can produce the resistance hindering pedal to advance, thus provides the feedback feeling of pedal brake.Certainly, another advantage of such resistance is provided to be, after the pedal force suffered by brake pedal is eliminated, brake pedal can be made to recover initial position by this resistance.
So, composition graphs 2, when aforementioned brake pedal 150 is depressed, first connecting rod 153 promotes described movable part 140a and moves, body 160a interlock makes this spring compacted and produces the resistance (namely hindering the resistance that pedal advances) that an opposing compresses trend, this resistance, by aforesaid body 160a---first connecting rod 153, is applied on brake pedal 150.
Certainly, as previously mentioned, under the embodiment that pushing part is not set, aforesaid recovery spring is arranged between movable part 140a and guide piece 170, in like manner produced the resistance (hindering the resistance that pedal advances) of an opposing compression trend by this recovery spring when brake pedal 150 depresses, and by such as movable part 140a---first connecting rod 153, be applied on brake pedal 150.
In further embodiments; aforesaid spring construction is return spring; now this return spring can be set directly at as Fig. 1 or Fig. 2; or in more embodiment; be arranged in the position at angular transducer 151 place; this position is also furnished with a hinge usually; return spring is in the circular movement around direction, the spring center of circle; but not straight-line motion when series connection; mode so adopts in the brake pedal unit of existing such as Toyota company, repeats no more in content of the present disclosure.
Obviously, in other examples, aforesaid return spring and helical spring embodiment can also realize simultaneously in a brake system.
Simultaneously, in multiple embodiment above or described below, the design plan of this return spring can be configured in these brake system simultaneously, be to be understood that, such design can't cause or form somewhat complex design, and for existing design, under aforementioned instruction proposed by the invention, return spring is applied in the position at aforementioned angular sensor 151 place or neighbouring position as the part recovering mechanism, the restoring force providing brake pedal to reset on the other hand is fed back for providing brake feel on the one hand, for those skilled in the art's institute's easy understand and realization.
Obviously, be to be understood that, in other examples, coil spring can also be configured in other positions, according to the instruction of aforementioned one or more embodiment of the present invention, in order to make this coil spring produce the resistance hindering pedal to advance, its position and annexation should be understood and realize.
In the disclosure, a kind of combined regenerative braking system for vehicle is also proposed, shown in composition graphs 3-Fig. 5, especially there is hydraulic braking sysgtem to unify the vehicle of regeneration brake system, these vehicles are elec. vehicle (EV) especially, such as pure electric vehicle, hybrid electric vehicle and plug-in hybrid electric vehicles, that one at least employs battery (or electric capacity, hydrogen cell etc.) and preserves electric energy in the battery as vehicle drive force and at least employ electrical motor and to advance the vehicle driven as vehicle.
The regeneration brake system of elec. vehicle (EV) may be used for reclaiming kinetic energy when car brakeing, thus energy returned to (such as comprising battery, electric capacity etc.) electric energy management system.Energy during braking catches the low efficiency that can alleviate and originally be introduced by traditional friction braking again.In regeneration brake system, when desired braking, electrical motor can be used as electrical generator, opposing traveling in the movement direction.The electric energy that electrical motor produces when taking on electrical generator is converted into the form that can be accepted and recharge for the battery to vehicle, electric capacity etc.Regeneration brake system uses with traditional hydraulic brake system (being also friction braking system) is collaborative usually.
Have in the vehicle of regeneration brake system at these, aforementioned hydraulic brake system usually has a master brake cylinder and is configured to be suitable for applying hydraulic braking moment of torsion to make car retardation to this vehicle.
The regeneration brake system that aforementioned vehicle especially elec. vehicle (EV) configures, especially include motor, motor driver, electrical energy storage device (rechargeable), the regeneration brake system of this type is configured to be suitable for applying regenerative braking torque to make car retardation and to produce electric energy to this vehicle.In such process of regenerative braking, the motor of vehicle is used as electrical generator, opposing traveling in the movement direction.
When necessary or suitable, aforementioned regeneration brake system can also comprise a DC/DC conv more, for providing the conversion of voltage.
In the realization of the combined regenerative braking in the disclosure, abandon adopting traditional mode such as electromagnetic valve, additional hydraulic systems to realize the feedback system to brake pedal when regenerative brake occurs, the realization of combined regenerative braking of the present disclosure adopts linear electromagnetic actuator as feedback feeling actuating unit during pedal brake, utilize that its fast response time, reliability are high, action is level and smooth, degree of controllability high, can the generation of feedback impedance power be carried out according to the required brake torque of driver and be applied on brake pedal to provide the realization of brake pedal feel.
Utilize the embodiment that the disclosure proposes, when regenerative brake occurs, the brake pedal feel identical or approximate with conventional truck can be retained, be unlikely to produce the problem stepped on sky or lost efficacy because of stop mechanism, thus accelerate or trample further to improve braking force, cause erroneous judgement, affect brake safe.
When brake pedal depresses, the movement state information of brake pedal is obtained by such as pedal stroke sensor and/or angular transducer, and in response to this, such as by the required brake torque of a control unit computing driver, distribute regenerative braking torque and hydraulic braking moment of torsion accordingly, make car retardation based on applying regenerative braking torque and/or hydraulic braking moment of torsion, as favourable mode, can be arranged to preferentially use regenerative braking torque to make car retardation.While brake pedal depresses, based on the brake torque of the described requirement calculated, produce for driving the drive singal of a straight line electromagnetic driver to make its movable part produce the resistance hindering brake pedal to advance to drive this linear electromagnetic actuator, be delivered on the brake pedal of this vehicle, thus the realization of brake pedal feel is provided.
The resistance that aforementioned obstruction brake pedal advances, such as, show as the thrust produced by the movable part of linear electromagnetic actuator.
Certainly, in other embodiments, aforesaid vehicle can also be such as utilize electrical network to provide electric energy to realize the tramway train, trackless trolley car, high speed train etc. that drive, in these cases, the electric energy that regeneration brake system produces will be fed in electrical network, in order to recycling by suitable mode.
In further embodiments, aforesaid vehicle can also be the vehicle of fuel cell-driven, such as hydrogen cell, SOFC etc., these batteries will not carry out supplementing of electric energy by aforementioned in the mode of simply charging again, therefore in this class vehicle, regeneration brake system can comprise some other forms of energy storing devices, such as flywheel, when regenerative brake occurs, by some machinery and/or electron steering, kinetic energy is converted to store with the energy of flywheel rotated versions, be beneficial to follow-up application.
This kind of energy regenerating mode, the KERS kinetic energy recovery system that existing vehicle such as, provide, this kinetic energy recovery system single unit system will be arranged on the back axle of vehicle.During vehicle brake, the energy of dispersion can be pooled together by flywheel High Rotation Speed, flywheel maximum speed of revolution can reach 60000rpm.When vehicle starts mobile again, the energy that flywheel is collected before being passed out by rotation, is transferred to vehicle rear wheel by certain transmission device.
Certainly, in some other embodiments, aforesaid regeneration brake system can also comprise some other forms of closed-center systems, such as compression air energy-storing apparatus, when regenerative brake occurs, by some machinery and/or electron steering, kinetic energy is converted to and stores with the energy of pressurized air form, be beneficial to follow-up utilization.
The energy regenerating form of this type, such as, store by one and the compression cylinder that releases energy and certain transmission device realize.Such as, the hybrid power system of a kind of Hybrid Air provided in existing vehicle, become with pneumatic groups of motors primarily of spark ignition engine, pressurized air memory system, in this cover hybrid dynamic system, pressurized air drives air motor to operate as energy source, thus realizes the recycling to pressurized air institute stored energy.
Certainly, in other example, can also be done work as automobile power by the compressed air-driven expansion engine that will store, the automobile power produced like this can be power-assisted also can be major impetus, so to realize the recycling to pressurized air institute stored energy.
In the example shown in figure 3, combined regenerative braking system 100 comprises a control unit 110, hydraulic brake system 130 and regeneration brake system 120, and control unit 110 is suitable for when brake pedal 150 is depressed (when braking requirement produces) and carries out the distribution of hydraulic braking moment of torsion and regenerative braking torque according to required brake torque.
In this example, regeneration brake system 120 is configured to include at least one motor, motor driver and the storage battery (such as lead-acid battery, lithium cell, nickel-cadmium cell etc.) as energy storing device.Obviously, also such as electric capacity, electrical network etc. can be configured to as energy storing device.
Certainly, as previously mentioned, in necessary or suitable, aforesaid regeneration brake system 120 can also arrange a DC/DC conv further.
Obviously, such regeneration brake system is only exemplary, and as described by the above content of the disclosure, regeneration brake system involved in the present invention is not as restriction.
Control unit 110, such as, can be configured to an ECU in vehicle electric element control system, certainly when necessary or suitable, also can be the set of one group of such as multiple ECU.
The aforementioned braking requirement produced based on pedal brake can be the movement state information based on brake pedal 150, such as, pass through the electric signal that angular transducer and/or pedal stroke sensor and/or speed sensor obtain, obtained by computing.Movement state information depends on brake pedal 150 by the information such as stroke and/or angle position depressed.Certainly, if necessary, speed and/or the acceleration information of brake pedal can also be comprised.
As preferred mode, the regenerative braking torque that this control unit 110 preferentially meets regeneration brake system 120 in an advantageous manner distributes, and namely whole composite regenerated control system is configured to preferentially use regenerative braking torque to brake.
The control unit 110 maximum renewable brake torque that can also be arranged to based on regeneration brake system 120 carries out the distribution of regenerative braking torque, wherein the maximum renewable brake torque of aforementioned regeneration brake system depends on the ceiling capacity recovery ability that regenerative braking system for vehicle 120 is current, the current available torque peak of such as motor, recharge rate of cell, the driving power of motor driver, these influence factors are as the realization preferably adopted based on Bucket Principle (short-board effect), namely the ability that reclaims the ceiling capacity that regeneration brake system 120 is current depends on the short slab factor in these factors.The factors such as the driving power of the current available torque peak of these motors, recharge rate of cell, motor driver, calculate by certain mode, and judge that the current ceiling capacity of regeneration brake system 120 reclaims ability accordingly, this is mathematical.
Such as, if storage battery is close to fully charged state, then exceed full charge owing to charging, therefore the maximum renewable brake torque of regeneration brake system reduces; Otherwise if storage battery is close to empty charge condition, then the maximum renewable brake torque of regeneration brake system increases.
Aforesaid hydraulic brake system 130 has a master brake cylinder 131 and is configured to be suitable for applying hydraulic braking moment of torsion to make car retardation to this vehicle.
As shown in Figure 3, in this example, hydraulic brake system 130 is configured to also comprise a supercharging actuator 132, supercharging actuator 132 comprises a driven part 133, common formation booster body, is suitable for providing thrust to be applied on described master brake cylinder by the piston 131a of described master brake cylinder 131 controllably.
Aforesaid supercharging actuator 132, such as can adopt vacuum boosting actuator, electric liquid supercharging actuator etc., these supercharging actuators can be common in prior art, vacuum boosting device, electric liquid supercharging device etc. that the company such as such as BOSCH, Volkswagen, FORD produces, or ten thousand all electric liquid supercharging devices disclosed in the company such as (Co., Ltd.), Kia.
Aforementioned regeneration brake system 120 in this example is configured to be suitable for applying regenerative braking torque to make car retardation and to produce electric energy to this vehicle, and these electric energy are through converting the form that can be accepted for recharging the storage battery of vehicle to.
In an advantageous manner, as shown in Figure 3, combined regenerative braking system 100 is also provided with first connecting rod 153, is connected between this first connecting rod 153 with brake pedal 150 by hinge, when brake pedal 150 is depressed, this first connecting rod 153 has corresponding stroke usually.The other end of first connecting rod 153 is configured to be connected with the movable part 140a of a straight line electromagnetic driver 140.
Linear electromagnetic actuator 140 is arranged to and makes its movable part 140a produce the resistance hindering brake pedal 150 to advance according to the drive singal applied, and this resistance shows as the thrust produced by the movable part 140a of linear electromagnetic actuator 140.This resistance to be applied on brake pedal 150 by aforesaid first connecting rod 153 thus to provide pedal brake feedback feeling.
The drive singal of linear electromagnetic actuator 140 derives from required brake torque when described control unit 110 is depressed based on brake pedal 150 and produces, especially when described braking requirement produces, in this example shown in Fig. 3, formed mechanically decoupled between the piston 131a of the master brake cylinder 131 of brake pedal 150 and hydraulic brake system 130, brake torque required when control unit 110 is depressed based on brake pedal 150 and produce the drive singal of linear electromagnetic actuator 140.
Now, alternatively, the corresponding relation according to setting is configured between the thrust that the obstruction brake pedal of the movable part 140a of the required brake torque of aforementioned driver and linear electromagnetic actuator 140 advances.This corresponding relation can be certain functional relation, such as linear change, nonlinearities change, or can be change according to the form mapping relations of setting.
Certainly, in other examples, such as when the braking distance of brake pedal 150 increases, cause being formed between the piston 131a of the master brake cylinder 131 of itself and hydraulic brake system 130 mechanical decoupled state when removing, control unit 110 mechanically directly feeds back to the thrust of brake pedal 150 in response to the brake torque required by driver and hydraulic brake system and produces the drive singal of linear electromagnetic actuator 140.In these examples, except according to except the brake torque required by driver, also the braking mode according to vehicle is determined the drive singal of linear electromagnetic actuator 140.
As shown in Figure 3, as favourable mode, between the movable part 140a and described first connecting rod 153 of aforesaid rectilinear electromagnetic driver 140, be provided with a pushing part 160, the other end of aforementioned first connecting rod 153 is configured to be connected with the movable part 140a of linear electromagnetic actuator 140 by this pushing part 160.
Link with the movable part 140a of linear electromagnetic actuator 140 in aforementioned pushing part 160, the thrust that the movable part 140a of linear electromagnetic actuator 140 produces is passed on first connecting rod 153 by this pushing part 160, thus is applied to further on brake pedal 150.
Shown in composition graphs 3, in example of the present disclosure, when brake pedal 150 is depressed, being formed mechanically decoupled between the piston 131a of the master brake cylinder 131 of brake pedal 150 and hydraulic brake system 130, being formed mechanically decoupled between the piston 131a realizing the master brake cylinder 131 of brake pedal 150 and hydraulic brake system 130 in this example by leaving a space between described pushing part 160 and the driven part 133 of aforesaid supercharging actuator 132.
As favourable mode, aforesaid pushing part 160 is preferably configured to horizontal " convex " shape structure, there is a body 160a for being fixedly connected with the movable part 140a of linear electromagnetic actuator 140, such as by realizations such as bolts, and a salient 160b, be configured to the shape protruding aforementioned body 160a, and protrude towards the direction of the piston 131a of the master brake cylinder 131 of described hydraulic brake system 130.In this example, the path between the piston 131a of this salient 160b and master brake cylinder 131 leaves space mechanically decoupled with what formed between the piston 131a of the master brake cylinder 131 of hydraulic brake system 130 and brake pedal 150.
So, when brake pedal 150 is depressed, shown in composition graphs 3, due to the existence in the space of aforementioned setting, hydraulic brake system 130 (the piston 131a of master brake cylinder) is incited somebody to action not action immediately and produces hydraulic braking force, thus the whole braking procedure of the intervention preventing hydraulic braking too early or excessive.Now, the pedal travel electric signal that nationality is produced by the aforementioned such as angular transducer and/or pedal stroke sensor mentioned, the required brake torque of control unit 110 computing driver also divides configuration brake torque based on the regenerative braking torque preferentially meeting regeneration brake system 120, ideally wish brake torque be all reproduced brake system 120 utilize to realize the maximum recovery of energy, if the available brake torque of regeneration brake system 120 is enough, the lock torque that then vehicle is provided by motor slows down, storage battery is charged simultaneously, realize regenerative brake.
But, if beyond regeneration braking capacity, (ceiling capacity that namely regeneration brake system is current reclaims ability to the deceleration demand of driver (namely required brake torque), the current available torque peak of motor, the charge rate of storage battery, the driving power etc. of electrical equipment actuator is depended on) as aforementioned, then need to provide hydraulic braking moment of torsion accordingly and complete car brakeing by the coordination of hydraulic brake system 130, meeting the deceleration demand of driver.Now, aforementioned required brake torque and the difference of regenerative braking torque of distributing by as hydraulic braking torque distribution to hydraulic brake system 130, produce braking force to make car brakeing by the piston movement of its master brake cylinder 131, the thrust that especially also can such as be provided by supercharging actuator 132 is promoted.
While pedal brake occurs (namely when producing braking requirement), due to the effect of regeneration brake system, if do not provide the feedback that pedal brake is felt, then likely there are erroneous judgement or other negative consequences, therefore produced by the movable part 140a of linear electromagnetic actuator 140 in the present example and hinder the resistance of pedal advance and be applied on brake pedal 150, to eliminate this unfavorable sensation.
In the embodiment be more preferably, as shown in Figure 4, combined regenerative braking system 100 also comprises a guide piece 170, is arranged to the motion guide of the movable part 140a providing described pushing part 160 and/or linear electromagnetic actuator 140.
As shown in Figure 4, this guide piece 170 is configured between described pushing part 160 and described supercharging actuator 132 to provide the motion guide of described pushing part 160.
In example as shown in Figure 4, the parts of the through hole that the pushing part 160b that guide piece 170 is configured to have pushing part 160 described in a tolerable passes through.
In some other examples, this guide piece 170 can also be configured to the spherical structure of honeycomb and configure a pilot bar be inserted in honeycomb structure, and pilot bar penetrates in pushing part 160 simultaneously, realizes the motion guide of pushing part 160.
In multiple embodiment described above, especially the example shown in composition graphs 3, Fig. 4, in some other embodiments, aforesaid pushing part 160 can not also be set, but be configured to suitable shape with structure by aforementioned first connecting rod 153 (when being necessary) and be directly connected with one end of the movable part 140a of aforesaid linear electromagnetic actuator 140, and the other end of this movable part 140a is configured to directly be moved towards described supercharging actuator 132 when brake pedal depresses.Certainly, when brake pedal 150 is depressed generation braking requirement, by first connecting rod 153 move (when the thrust that brake pedal transmits be greater than linear electromagnetic actuator produce resistance time) the movable part 140a of linear electromagnetic actuator is moved towards the piston 131a of master brake cylinder, and the path of the two leaving certain space makes the motion of this movable part 140a thrust to be directly delivered on this piston 131a immediately, formed mechanically decoupled between the piston 131a realizing the master brake cylinder 131 of brake pedal 150 and hydraulic brake system 130.
While when brake pedal 150 is depressed, produce by the movable part 140a of aforesaid rectilinear electromagnetic driver 140 resistance hindering brake pedal 150 to advance according to the drive singal loaded, be applied on brake pedal to provide pedal brake feedback feeling.
Certainly, do not arrange in the example of pushing part 160 at these, regenerative braking torque and hydraulic braking moment of torsion such as can distribute according to above mode.
Apparently, do not arrange in the example of pushing part 160 at these, can also be disposed therein by it according to the description of above guide piece 170, the guiding that the movable part 140a of linear electromagnetic actuator 140 moves towards piston 131a is provided.
Now, guide piece 170 also can be arranged on other positions, and obviously, it is easy understand and realization that these positions arrange according to the instruction of previous embodiment, and therefore not to repeat here.
In aforementioned multiple embodiment of the present disclosure, what have employed between piston 131a that suitable mode forms the master brake cylinder 131 of brake pedal 150 and hydraulic brake system 130 is mechanically decoupled, so to realize the action effect that line passes braking and/or increases regenerative brake.
Aforesaid mechanically decoupled, refer to that the interaction relation between brake pedal and piston is not fixed, especially when brake pedal depresses, directly can not promote piston (the mechanical connection relation due to fixing) and produce hydraulic braking effect.At least in the incipient stage that brake pedal depresses, the direct transmission of thrust from brake pedal to piston is interrupted.
Obviously, in further embodiments, in conjunction with multiple embodiments of aforementioned description, especially composition graphs 3, combined regenerative braking system illustrated in fig. 4, mechanically decoupled between the piston 131a that can not also form the master brake cylinder 131 of brake pedal 150 and hydraulic brake system 130, such as the movable part 140a of aforesaid linear electromagnetic drive division 140 is directly engaged the driven part 133 of supercharging actuator 132, this driven part 133 is configured to engage with the piston 131a of master brake cylinder 131 and movable part 140a respectively.Or in the embodiment that supercharging actuator 132 is not set, realized by the piston 131a of the direct engagement brake master cylinder 131 in pushing part 160 that the movable part 140a with linear electromagnetic drive division 140 is linked.
So, when pedal brake occurs, feedback feeling when also providing pedal brake by this linear electromagnetic drive division 140, and the distribution of regenerative brake and hydraulic braking can adopt traditional mode to realize.
In the disclosure, in earlier figures 3, Fig. 4, label 140b represents the fixed part of linear electromagnetic actuator.
Label 131c exemplarily describes and compensates liquid filling.
When being necessary, label 131d and 131e exemplarily describes front axle brake master cylinder and rear axle master brake cylinder.
Label 133 represents the driven part of supercharging actuator 132.
Label 151 exemplarily indicates aforesaid angular transducer, label 152 exemplarily indicates aforesaid pedal stroke sensor, the position of these two sensors is exemplary in the example shown, in the implementation procedure of multiple scheme of the present invention, its position is variable, and all are reasonably placed and are related personnel institute and understand and easily realize.
The movable part 140a of the linear electromagnetic actuator of aforementioned description, can be configured to elementary, and now aforesaid fixed part 140b is then configured to secondary.Certainly, in other embodiment, aforesaid movable part 140a can also be configured to secondary, then aforesaid fixed part 140b is then configured to elementary.
In foregoing individual embodiments of the present disclosure, the realization of brake pedal feel when providing regenerative brake to occur by providing linear electromagnetic actuator 140, compared to the feedback that the modes such as traditional additional hydraulic systems realize, system realizes simple, device is few, annexation is simple, realize without the need to relying on the such as sensing such as pressure sensor, electromagnetic valve class and valve type device controlling, reliability is high.
As more favourable embodiment, for strengthening the reliability of Brake feedback, the brake pedal feedback neutralization that prevents linear electromagnetic drives fail from bringing, in combined regenerative braking system as shown in Figure 5, also be provided with one and recover mechanism 180, when producing for providing braking requirement and the rightabout resistance of the motion of brake pedal 150, with the realization making this recovery mechanism 180 and described linear electromagnetic actuator 140 jointly or separately provide brake pedal feel.
In this example, aforesaid linear electromagnetic actuator 140 is by as one first brake pedal feel feedback mechanism, and this recovery mechanism 180 forms one second brake pedal feel feedback mechanism.
In the representative configuration figure of the combined regenerative braking system shown in Fig. 5, with the function of each component part in earlier figures 3, constituent elements, part that effect is all identical or construct and all adopt identical label to represent, its specific implementation repeats no more in the present embodiment.
As shown in Figure 5, recover mechanism 180, preferably, be configured to a recovery spring.
Between the body 160a that this recovery spring 180 is arranged on aforementioned pushing part 160 and supercharging actuator 132, as shown in the figure, in this example being provided with guide piece 170, this recovery spring 180 between guide piece 170 and the body 160a of pushing part 160, its one end can engage with body 160a, and the other end and guide piece 170 are fixed.Certainly, in necessary or suitable, recovering spring 180 can be not exclusively all adopt the mode be fixedly connected with both, but free-standing and when needs (such as when brake pedal 150 is depressed) produced resistance by compressing.
So, composition graphs 5, when aforementioned brake pedal 150 is depressed, first connecting rod 153 promotes described movable part 140a and moves, pushing part 160 interlock makes this spring compacted and produces the resistance (namely hindering the resistance that pedal advances) that an opposing compresses trend, this resistance, by aforesaid body 160a---first connecting rod 153, is applied on brake pedal 150.
Certainly, as previously mentioned, under the embodiment that pushing part is not set, aforesaid recovery spring is arranged between movable part 140a and supercharging actuator 132, in like manner produced the resistance (hindering the resistance that pedal advances) of an opposing compression trend by this recovery spring when brake pedal 150 depresses, and by such as movable part 140a---first connecting rod 153, be applied on brake pedal 150.
In this example, composition graphs 5, described recovery mechanism 180 is arranged between the body 160a of pushing part 160 and supercharging actuator 132, certainly in a further embodiment, recover mechanism 180 and can also be arranged on other positions, such as, in Fig. 3, Fig. 4 or Fig. 5 position at angular transducer 151 place or the position closed on.Obviously, should be appreciated that recovering mechanism 180 can be arranged on plurality of positions, according to the instruction of aforementioned one or more embodiment of the present invention, in order to make this recovery spring produce the resistance hindering pedal to advance, its position and annexation should be understood and realize.
So, when regenerative brake occurs, when described linear electromagnetic actuator 140 normally works, this recovery mechanism 180 and described linear electromagnetic actuator 140 provide the realization of brake pedal feel jointly.When losing efficacy at described linear electromagnetic actuator 140, this recovery mechanism 180 still can provide separately the realization of brake pedal feel.
Obviously, in each embodiment aforesaid, when brake pedal 150 is depressed braking intention generation, if when described linear electromagnetic actuator 140 lost efficacy, certain brake pedal feedback feeling still can be provided by aforesaid recovery mechanism 180, even if when regeneration brake system 120 and/or linear electromagnetic actuator 140 all lost efficacy, still deepen to trample the stroke of the first connecting rod 153 be connected with brake pedal 150 is strengthened by driver, mechanically decoupled with what stop between brake pedal 150 and hydraulic brake system 130, driver is loaded on traditional hydraulic brake system 130 by the required brake torque of brake pedal 150 through mechanical path, realize the braking of vehicle (obviously, when not decoupling zero, this braking intention certainly can be applied directly on master brake cylinder or by supercharging actuator and be applied on master brake cylinder again).The decoupling zero realized compared to traditional employing electromagnetic valve, additional hydraulic efficiency pressure system and brake pedal feedback system, the mode that the disclosure provides, the car brakeing under unexpected situation can be realized fast, traditional hydraulic brake system is had an effect rapidly, effectively prevent the generation of brake safe accident, be supplied to the brake pedal feel that driver is certain simultaneously, prevent erroneous judgement and cause safety traffic dangerous.
In certain embodiments, aforesaid recovery mechanism 180 can also be configured to other forms of elastic and resilient element, such as Rubber Parts, recoverable steel disc etc., certainly not as restriction.
Certainly, in the brake system shown in Fig. 3,4,5, the embodiments of various recovery mechanisms 180 just as disclosed above all can be suitable for, especially about the example of coil spring and return spring.
In the brake system shown in Fig. 3,4,5, the embodiment about air pressure balance path just is as disclosed above applicable, especially arranges the example of air extractor vent about guiding mechanism and/or pushing part.
In the aforementioned disclosed multiple design of the present invention and embodiment, in the combined regenerative braking system especially mentioned by Fig. 3, Fig. 4, Fig. 5, the storage battery all mentioned using foregoing is as energy-storage units to describe exemplary enforcement of the present invention.Obviously, according to the instruction of above-mentioned design of the present invention, embodiment, the transformation of energy of aforesaid regeneration brake system and file layout be not as restriction, still can be implemented with the form of such as aforesaid flywheel energy storage or compressed-air energy storage, its significant beneficial effect is also easily learnt according to the instruction of the aforementioned one or more embodiment of the present invention.
In the embodiment of aforementioned each brake system mentioned, brake pedal 150 is after being depressed, the resistance providing brake feel to feed back by aforesaid linear electromagnetic actuator 140 is also applied on brake pedal, thus realize brake feel and feed back to driver, when after driver's loosen the brake, the reset of this brake pedal can still be realized by this linear electromagnetic actuator 140, thrust brake pedal 150 being resetted by making it produce to its load driver signal, is applied on brake pedal and brake pedal 150 is resetted.Certainly, scheme is advantageously, especially be provided with in the embodiment recovering mechanism 180 aforementioned, this recovery mechanism is provided the resistance hindering its motion on the one hand when brake pedal 150 tramples, on the other hand when brake pedal 150 is released, provide the restoring force that brake pedal 150 is resetted.
Certainly, undertaken in the example of brake pedal reset aforementioned by linear electromagnetic actuator 140, preferably, also can inhibiting device be set at cylindrical case 141 inwall, thus the stroke that the movable part 140a of straight limit electromagnetic driver 140 moves.The position of this inhibiting device can return to the stroke required for initial position according to brake pedal 150 and determine.
In multiple examples (especially Fig. 1-Fig. 5) as previously suggested, be all described for the vehicle being provided with brake pedal, be beneficial to driver and trample and produce braking requirement.Certainly, in some other examples, such as do not design the vehicle of brake pedal, can be now substitute described brake pedal with lever connection, its function and efficacy and brake pedal are substantially identical, and difference is: brake pedal is produced braking requirement when depressing, and lever connection produces braking requirement, should be appreciated that its structure and connection mode are well known to those of ordinary skill in the art or easy realization.In these examples, correspondingly, linear electromagnetic actuator 140 hinders this lever connection being pulled or being pushed the resistance that advances in direction and be applied on this lever connection by producing, thus realizes the realization of pull bar Brake feedback sensation.
As some special cases, such as in the vehicle with personal vehicle system or DAS (Driver Assistant System), if when the car running computer of vehicle or auxiliary steering control device judge that needs are braked (but not in response to driver's operation for brake pedal or lever connection), also will braking requirement be produced.Now, the resistance provided by the linear electromagnetic actuator 140 in aforementioned one or more embodiment also will feed back to brake pedal, since resilience jump, no matter be slight or be the vibration that amplitude is larger, to play a reminding effect, for driver, such prompting in some cases .. time necessity, such as vehicle is comparatively far away or occur break turn through road depressed part, run-off-road, etc.
According to above content of the present disclosure, the present invention also proposes a kind of vehicle, comprises the oil-burning machine drive system for driving vehicle to advance, such as diesel engine or spark ignition engine drive system, also comprises aforementioned any one the brake system for vehicle disclosed.
In other example, the aforementioned vehicle mentioned also can also comprise the motor driven systems providing vehicle to advance driving by motor, and the vehicle in this example will be a kind of motor vehicle driven by mixed power.
According to above content of the present disclosure, the invention still further relates to another kind of new energy vehicle, elec. vehicle, it comprises one provides vehicle to advance the motor driven systems driven by motor, also comprises aforementioned any one the brake system for vehicle disclosed.
Although the present invention with preferred embodiment disclose as above, so itself and be not used to limit the present invention.Persond having ordinary knowledge in the technical field of the present invention, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Therefore, protection scope of the present invention is when being as the criterion depending on those as defined in claim.
Claims (10)
1. the brake system for vehicle, comprise a hydraulic brake unit with master brake cylinder to be arranged to and to make car retardation by hydraulic braking, it is characterized in that, this brake system also comprises brake pedal, pedal travel sensor, control unit and brake feel feedback generation unit, wherein:
Pedal travel sensor, for obtaining movement state information when brake pedal is trampled;
Brake feel feedback generation unit, comprises the feedback feeling generation mechanism that a straight line electromagnetic driver is provided as car brakeing, its resistance advanced to produce obstruction brake pedal to the operation of the brake pedal of vehicle in response to driver;
Control unit, for producing the drive singal of described linear electromagnetic actuator based on described brake pedal movement state information.
2. the brake system for vehicle according to claim 1, it is characterized in that, described vehicle also comprises a regeneration brake system and is arranged to and makes car retardation by regenerative brake, and described control unit is also arranged for the distribution performing hydraulic braking moment of torsion and regenerative braking torque according to the described operation of driver.
3. the brake system for vehicle according to claim 2, it is characterized in that, described control unit is also arranged for the distribution performing hydraulic braking moment of torsion and regenerative braking torque according to the described operation of driver, and priority allocation regenerative braking torque makes vehicle preferentially be used regenerative brake to slow down.
4. according to the brake system for vehicle in claim 1-3 described in any one, it is characterized in that, this brake system also comprises:
At least one elasticity recovers mechanism, be provided as the second feedback feeling and produce mechanism for producing the resistance hindering described brake pedal to advance when braking requirement occurs, this at least one elasticity recovery mechanism and described linear electromagnetic actuator co-localization are in the braked channel of vehicle.
5. the brake system for vehicle according to claim 4, is characterized in that, at least one elasticity described recovers mechanism more close to described brake pedal.
6. the brake system for vehicle according to claim 4, is characterized in that, described elasticity recovery mechanism construction is at least one in coil spring, return spring.
7. the brake system for vehicle according to claim 4, is characterized in that, described braked channel at least includes the braked channel formed by vehicle brake pedal, supercharging actuator, master brake cylinder.
8. a vehicle, comprising the oil-burning machine drive system for driving vehicle to advance, it is characterized in that, also comprises the brake system for vehicle in aforementioned claim 1-7 described in any one.
9. vehicle according to claim 8, is characterized in that, this vehicle also comprises the motor driven systems providing vehicle to advance driving by motor.
10. an elec. vehicle, comprises a motor driven systems providing vehicle to advance driving by motor, it is characterized in that, also comprise the brake system for vehicle in aforementioned claim 1-7 described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510171081.6A CN105015531B (en) | 2015-02-05 | 2015-04-10 | Braking system for vehicle and the vehicle with the system |
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| CN201510062322 | 2015-02-05 | ||
| CN201510060102 | 2015-02-05 | ||
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| CN201510061979 | 2015-02-05 | ||
| CN201510171081.6A CN105015531B (en) | 2015-02-05 | 2015-04-10 | Braking system for vehicle and the vehicle with the system |
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| CN105015531A true CN105015531A (en) | 2015-11-04 |
| CN105015531B CN105015531B (en) | 2018-10-02 |
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| CN201510168977.9A Pending CN105083240A (en) | 2015-02-05 | 2015-04-10 | Vehicle brake system with backup mode |
| CN201510170661.3A Pending CN105035057A (en) | 2015-02-05 | 2015-04-10 | Method for storing electric energy in vehicle |
| CN201510171070.8A Pending CN105015516A (en) | 2015-02-05 | 2015-04-10 | Method for realizing braking sense feedback on vehicle |
| CN201510169062.XA Pending CN105015515A (en) | 2015-02-05 | 2015-04-10 | Pedal brake sense feedback actuator for vehicle |
| CN201510170692.9A Pending CN105034821A (en) | 2015-02-05 | 2015-04-10 | Composite regenerative braking method used for vehicle |
| CN201510169077.6A Pending CN105034820A (en) | 2015-02-05 | 2015-04-10 | Composite regenerative braking system used for vehicle |
| CN201510171081.6A Active CN105015531B (en) | 2015-02-05 | 2015-04-10 | Braking system for vehicle and the vehicle with the system |
| CN201510170599.8A Pending CN105109349A (en) | 2015-02-05 | 2015-04-10 | Vehicle braking system with high reliability |
| CN201510171104.3A Pending CN105034822A (en) | 2015-02-05 | 2015-04-10 | Braking system used for vehicle |
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| CN201510168977.9A Pending CN105083240A (en) | 2015-02-05 | 2015-04-10 | Vehicle brake system with backup mode |
| CN201510170661.3A Pending CN105035057A (en) | 2015-02-05 | 2015-04-10 | Method for storing electric energy in vehicle |
| CN201510171070.8A Pending CN105015516A (en) | 2015-02-05 | 2015-04-10 | Method for realizing braking sense feedback on vehicle |
| CN201510169062.XA Pending CN105015515A (en) | 2015-02-05 | 2015-04-10 | Pedal brake sense feedback actuator for vehicle |
| CN201510170692.9A Pending CN105034821A (en) | 2015-02-05 | 2015-04-10 | Composite regenerative braking method used for vehicle |
| CN201510169077.6A Pending CN105034820A (en) | 2015-02-05 | 2015-04-10 | Composite regenerative braking system used for vehicle |
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| CN201510170599.8A Pending CN105109349A (en) | 2015-02-05 | 2015-04-10 | Vehicle braking system with high reliability |
| CN201510171104.3A Pending CN105034822A (en) | 2015-02-05 | 2015-04-10 | Braking system used for vehicle |
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Also Published As
| Publication number | Publication date |
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| CN105109349A (en) | 2015-12-02 |
| CN105015515A (en) | 2015-11-04 |
| CN105034820A (en) | 2015-11-11 |
| CN105015516A (en) | 2015-11-04 |
| CN105034822A (en) | 2015-11-11 |
| CN105035057A (en) | 2015-11-11 |
| CN105083240A (en) | 2015-11-25 |
| CN105015531B (en) | 2018-10-02 |
| CN105034821A (en) | 2015-11-11 |
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