CN207875610U - The compound line control brake system of intelligent automobile - Google Patents

Abstract

The utility model discloses the compound line control brake system of intelligent automobile, mechanical electric controlled brake system is combined by braking system with integrated electric motor type electric controlled brake system, and passes through electronic control unit independent control；Electric mechanical braking EMB modules are made of two brakes；Integrated electric motor type electric control braking IBS modules generate unit by integrated motor, ball screw framework and brake pressure and form；The ball screw framework is fixed in the rotor of integrated motor, and power is transferred to the output push rod that brake pressure generates unit by rotor by ball screw framework；Two master cylinder inner cavities that the brake pressure generates unit generate brake pressure under the promotion of output push rod, and realize the control for brake to two wheel cylinders via solenoid valve；Mechanical electric controlled brake system is combined by the utility model with integrated electric motor type electric controlled brake system, is solved deficiency existing for single braking system, to realize fast run-up pressure, accurate pressure control, and can be realized the braking under multi-state.

Description

The compound line control brake system of intelligent automobile

Technical field

The utility model belongs to intelligent automobile braking technology field, and in particular to the compound line control brake system of intelligent automobile.

Background technology

With energy saving motorized, intelligent and net connectionization with new-energy automobile, in order to ensure vehicle braking safety, people Requirements at the higher level are proposed with function to the structure of motor vehicle braking system.In the premise for ensureing vehicle braking Stability and dependability Under, to realize the motorized, intelligent with net connectionization of new-energy automobile, optimum brake system structure, raising braking response speed, It accurately controls brake pressure, realize that auxiliary brake function is integrated, it has also become the active demand of new-energy automobile development.

It is automatically controlled to be developed to present fluid pressure type by initially relying on the brake fluid system of vacuum booster for brake system of car Braking system (Electronic Hydraulic Brake System, abbreviation EHB), mechanical electric controlled brake system (Electronic mechanical Brake System, abbreviation EMB) and integrated electric motor type electric controlled brake system A variety of brake-by-wire forms such as (Integrated Braking System, abbreviation IBS)；Line traffic control EHB, EMB and IBS braking systems There are advantage and disadvantage in system, the advantage is that：Line traffic control EHB braking systems can realize four-wheel independent control, accurate quickly to adjust system Dynamic pressure is provided simultaneously with failure braking function and braking energy recovering function；Line traffic control EMB braking systems then have small, sound Should be fast, precision is high, compatibility is strong and stability is high the advantages that；The response of line traffic control IBS brake systems is rapid, pressure adjusts essence Really, it can be achieved that anti-lock braking system (Anti-lockBrakingSystem, abbreviation ABS), body electronics stability control system Unite (Electronic Speed Control System, abbreviation ESC) and traction control system (Traction Control System, abbreviation TCS) etc. auxiliary braking system compatibility；Its shortcoming is that：Line traffic control EHB braking systems are due to adopting Hydraulic pump is driven with motor, thus generates highly pressurised liquid, but there are certain response lags when being braked；Line traffic control EMB Braking system needs four sets of executing agencies when being braked, more demanding to corresponding motor performance, and for failure braking This operating mode, is still backed up disabling mechanism；Line traffic control IBS braking systems are realized by motor pushing master cylinder and are braked, but are being subtracted It needs motor to be inverted when pressure, motor performance is required very high.

There is limitation in above-mentioned existing line control brake system, can not fill respective advantage in actual application Divide and brings into play.

Invention content

Defect present in for the above-mentioned prior art, the utility model provide the compound brake-by-wire system of intelligent automobile System, mechanical electric controlled brake system is combined with integrated electric motor type electric controlled brake system, solves single braking system application It is existing insufficient in the process, to realize fast run-up pressure, accurate pressure control.In conjunction with Figure of description, the technical solution of the utility model It is as follows：

The compound line control brake system of intelligent automobile, by brake pedal mechanism, electronic control unit, oil storage cup, electronics Mechanical braking EMB modules and integrated electric motor type electric control braking IBS modules composition；

The brake group that the electric mechanical braking EMB modules are connect with electronic control unit electronic signal respectively by two At；

The integrated electric motor type electric control braking IBS modules are generated single by integrated motor, ball screw framework and brake pressure Member composition；The integrated motor is connect with electronic control unit signal, and the feed screw nut in ball screw framework is fixed on integrated In the rotor of motor, power is transferred to the output push rod that brake pressure generates unit by rotor by ball screw framework；

The brake pressure generates in unit, front and back to be set successively there are two master cylinder inner cavity, is located at the master cylinder inner cavity pair of rear end The master cylinder inner cavity piston answered is connected with output push rod, and the straight reciprocating motion under the promotion of output push rod；The master cylinder Inner cavity side is respectively via normally opened linear solenoid valve and wheel cylinder piping connection；The master cylinder inner cavity other side is respectively via check valve With oil storage cup piping connection；Any point is via normally closed switch on the pipeline that master cylinder inner cavity is connected with normally opened linear solenoid valve Solenoid valve and oil storage cup piping connection；Pressure sensor is installed in the liquid oil port of the wheel cylinder；

In the brake pedal mechanism, electric mechanical braking EMB modules and integrated electric motor type electric control braking IBS modules All the sensors and solenoid valve respectively connect with electronic control unit signal.

Further, the brake pedal mechanism is by pedal gear, pedal sense simulator, the first normally closed switch electricity Magnet valve 10 and the first normal open switch solenoid valve 16 composition；

The pedal gear is by pedal 1, displacement sensor 2, pedal push rod 3,4 pedal piston 6 of pedal push rod shell and One rubber reaction plate 12 forms；

The pedal 1, pedal push rod 3, pedal piston 6 and the first rubber reaction plate 12 are sequentially connected and are pushed away mounted on pedal In rod shell 4, pedal push rod housing cavity 11, first rubber are formed between the pedal piston 6 and pedal push rod shell 4 Reaction plate 12 is connected to the pedal piston push rod one end for stretching out pedal push rod shell 4, and institute's displacement sensors 2 are mounted on pedal On push rod 3；

The pedal push rod housing cavity 11 is respectively via the first normally closed switch solenoid valve 10 and the first normal open switch electromagnetism Valve 16 and 23 piping connection of pedal sense simulator and oil storage cup.

Further, the pedal sense simulator is by pedal sense simulator spring 5, pedal sense simulator piston 7 and pedal sense simulator shell 8 form；

The pedal sense simulator piston 7 is located inside pedal sense simulator shell 8, the pedal sense simulator Spring 5 is mounted on 8 rear chamber of pedal sense simulator shell, and 8 front chamber of pedal sense simulator shell is pedal sense Simulator inner cavity 9；In the pedal push rod housing cavity 11 via the first normally closed switch solenoid valve 10 and pedal sense simulator 9 piping connection of inner cavity.

Further, the integrated motor is by first bearing 13, electric machine casing 15, stator 17, rotor 18 and second bearing 19 compositions；The electric machine casing 15 is fixedly connected with pedal push rod shell 4；The stator 17 is fixed on 15 inside of electric machine casing, The rotor 18 is mounted on 17 inside of stator, and the front and back end of rotor 18 is supported by first bearing 13 and second bearing 19；

The ball screw framework is made of feed screw nut 20, ball body 21 and leading screw screw rod 22；The silk ball-screw Mechanism is mounted on 18 inside of rotor, is also hollow structure inside the leading screw screw rod 22.

Further, the brake pressure generates unit by master cylinder shell 24, output push rod 25, the second rubber reaction plate 14, master cylinder first inner chamber piston 26, the first spring of master cylinder 28, master cylinder second inner chamber piston 29, master cylinder second spring 31, second are normal Close switch electromagnetic valve 32, third normally closed switch solenoid valve 33, the second normally opened linear solenoid valve 34, the normally opened linear solenoid valve of third 39, first pressure sensor 35, second pressure sensor 38, the first wheel cylinder 36 and the second wheel cylinder 37 composition；

The master cylinder shell 24 is fixedly connected with electric machine casing 15；

The rear end of the output push rod 25 passes through inside leading screw screw rod 22, and the second rubber reaction plate 14 is mounted on defeated Go out the rear end of push rod 25；

It is equipped with interior edge in the leading screw screw rod 22, and is in contact and connect with the outer of output push rod 25；

The master cylinder first inner chamber piston 26 divides master cylinder shell 24 in master cylinder first with master cylinder second inner chamber piston 29 Chamber 27 and master cylinder second inner chamber 30, the first spring of the master cylinder 28 and master cylinder second spring 31 are separately mounted to master cylinder first inner chamber 27 and master cylinder second inner chamber 30 in；

The side of the master cylinder first inner chamber 27 and master cylinder second inner chamber 30 is single via the first check valve 43 and second respectively To 44 piping connection of valve in oil storage cup 23, the other side of the master cylinder first inner chamber 27 and master cylinder second inner chamber 30 is respectively via Three normally opened linear solenoid valves 39 and the second normally opened linear solenoid valve 34 and 36 pipeline of the second wheel cylinder 37 and the first wheel cylinder Connection；Any point is normally closed via second on the pipeline that the normally opened linear solenoid valve of master cylinder first inner chamber 27 and third 39 is connected Switch electromagnetic valve 32 and oil storage cup piping connection；In the pipe that master cylinder second inner chamber 30 is connected with the second normally opened linear solenoid valve 34 Road any point is via third normally closed switch solenoid valve 33 and oil storage cup piping connection；

The first pressure sensor 35 and second pressure sensor 38 are separately mounted to the first wheel cylinder 36 and second The liquid oil port of wheel cylinder 37.

Further, the electric mechanical braking EMB moulds brake in the block is wedge brake, the wedge brake By brake lining 63, outer voussoir 64, interior voussoir 65, roller 62, motor 66, ball-screw screw rod 67, ball-screw nut 69 with And driving mechanism 68 forms；

The brake lining 63 is fixed on 64 outside of outer voussoir, and 64 inside of outer voussoir is equipped with wedge groove, and in outer voussoir 64 Inside is equipped with driving plate, and the inside of the interior voussoir 65 is equipped with the wedge groove to match with 64 inside of outer voussoir, outer voussoir 64 with 65 inside of interior voussoir forms the wide wedge shape space in the narrow centre in both ends, and the roller 62 is mounted in the wedge shape space；

The ball-screw nut 69 and the output end of motor 66 are coaxially connected, the ball-screw screw rod 67 and ball wire The mating connection of thick stick nut 69 forms ball screw assembly,；

The driving mechanism 68 is mounted on the end of ball-screw screw rod 67, driving mechanism 68 and the driving on outer voussoir 64 Plate is connected, and under the driving of motor 66, driving mechanism 68 drives outer voussoir 64 to move by driving plate, and roller 62 is in wedge shape space Interior movement drives the movement of brake lining 63 of outer voussoir 64 outward to generate brake force；The motor 66 and electronic control unit 40 signals connect.

In conjunction with Figure of description, the beneficial effects of the utility model are：

1, compound line control brake system described in the utility model is using electric mechanical braking EMB modules and integrated electric motor type electricity IBS two kinds of brake modules of module are moved in control, make that brake system structure is compact, build pressure quickly, pressure control is accurate, and can realize failure Braking and regenerative braking capability.

2, compound line control brake system described in the utility model eliminates in electric vehicle and orthodox car braking system The associated components such as vacuum booster, electronic vacuum pump and air accumulator simplify the structure of braking system, reduce braking system Volume, save arrangement space, be convenient for braking system installation, be conducive to the general layout of vehicle.

3, use electric mechanical braking EMB modules, electronic control single in compound line control brake system described in the utility model First ECU directly carries out parallel control by electronic circuit to electric mechanical braking EMB moulds brake in the block, complicated without being arranged Fluid pressure line, and brake, directly by motor pushing execution, braking response is fast, and braking pressure control is accurate.

4, using integrated electric motor type electric control braking IBS modules, electronics in compound line control brake system described in the utility model Control unit ECU after receiving brake command signal, braked, and can realize fast run-up by control motor pushing master cylinder Pressure, and accurately controlling for pressure is realized by linear solenoid valve.

5, compound line control brake system described in the utility model remains in the case of braking system power-off failure by stepping on Plate push rod, pedal piston, input push rod, master cylinder, linear solenoid valve realize braking, it is ensured that the driving safety of vehicle.

6, pedal sense simulator is used in compound line control brake system described in the utility model, it being capable of preferable simulation system Innervation is felt, good pedal feedback is provided to driver；Under power-off failure operating mode, pedal push rod shell is ensured by switch electromagnetic valve Liquid in intracoelomic cavity enters in oil storage cup, realizes failure braking.

7, compound line control brake system described in the utility model can realize time-shared serial braking or simultaneously parallel braking, can Serial Control and the parallel control for realizing braking process, to meet the braking requirement under different operating modes.

8, compound line control brake system described in the utility model can realize " actively building pressure ", " accurate pressure control ", " failure system It is dynamic ", the brake pressures regulatory function such as " regenerative braking ", and as support, so realize braking system " conventional brake ", " abs braking ", " TCS brakings ", " ESC brakings " and part auxiliary drive function, such as " automatic emergency brake (AEB) ", " track Keep auxiliary (LKA) ", " adaptive cruise (ACC) " or " auxiliary is parked (APA ") etc..

9, compound line control brake system described in the utility model can realize that wheel cylinder brake pressure and brake pedal are stepped on The full decoupling of plate power, and as support, and then realize electric vehicle or hybrid vehicle in Brake energy recovery operating mode Under brake pressure can be adjusted, and road feel is clear in braking process, and can avoid larger braking system and shake to driving The influence for the person of sailing.

Description of the drawings

Fig. 1 is the composed structure schematic diagram of the compound line control brake system of intelligent automobile described in the utility model；

Fig. 2 is the structural schematic diagram of wedge brake in the compound line control brake system of intelligent automobile described in the utility model；

Fig. 3 is one structural schematic diagram of embodiment of the compound line control brake system of intelligent automobile described in the utility model；

Fig. 4 is two structural schematic diagram of embodiment of the compound line control brake system of intelligent automobile described in the utility model；

Fig. 5 is three structural schematic diagram of embodiment of the compound line control brake system of intelligent automobile described in the utility model；

Fig. 6 is the example IV structural schematic diagram of the compound line control brake system of intelligent automobile described in the utility model；

In figure：

1- pedals, 2- displacement sensors, 3- pedal push rods,

4- pedal push rod shells, 5- pedal sense simulator springs, 6- pedal pistons,

7- pedal sense simulator pistons, 8- pedal sense simulator shells, 9- pedal sense simulators inner cavity,

10- the first normally closed switch solenoid valves, 11- pedal push rod housing cavities, 12- the first rubber reaction plates,

13- first bearings, 14- the second rubber reaction plates, 15- electric machine casings,

16- the first normal open switch solenoid valves, 17- stators, 18- rotors,

19- second bearings, 20- feed screw nuts, 21- ball bodies,

22- leading screw screw rods, 23- oil storage cups, 24- master cylinder shells,

25- output push rods, 26- master cylinder first inner chamber pistons, 27- master cylinder first inner chambers,

The first spring of 28- master cylinders, 29- master cylinder second inner chamber pistons, 30- master cylinder second inner chambers,

31- master cylinder second springs, 32- the second normally closed switch solenoid valves, 33- third normally closed switch solenoid valves,

The second normally opened linear solenoid valves of 34-, 35- first pressure sensors, the first wheel cylinders of 36-,

The second wheel cylinders of 37-, 38- second pressure sensors, the normally opened linear solenoid valve of 39- thirds,

40- electronic control units, the first wedge brakes of 41-, the second wedge brakes of 42-,

43- the first check valve the second check valves of 44-

62- rollers, 63- brake lining, the outer voussoirs of 64-,

Voussoir in 65-, 66- motors, 67- ball-screw screw rods,

68- driving mechanisms, 69- ball-screw nuts.

Specific implementation mode

For technical solution described in the utility model is expanded on further, in conjunction with Figure of description, the specific reality of the utility model It is as follows to apply mode：

The utility model provides the compound line control brake system of intelligent automobile, by brake pedal mechanism, electronic control Unit, oil storage cup, electric mechanical braking EMB modules and integrated electric motor type electric control braking IBS modules composition.

The brake pedal mechanism is by pedal gear, pedal sense simulator, 10 and of the first normally closed switch solenoid valve First normal open switch solenoid valve 16 forms；

As shown in Figure 1, the pedal gear by pedal 1, displacement sensor 2, pedal push rod 3, pedal push rod shell 4, step on Plate piston 6 and the first rubber reaction plate 12 composition；Wherein, the pedal 1 is connected to one end of pedal push rod 3, pedal push rod 3 The other end stretch into pedal push rod shell 4 and offset with 6 side of pedal piston, the other side of pedal piston 6 is equipped with pedal piston Push rod, the pedal piston push rod pass through the partition board being arranged in pedal push rod shell 4 to stretch out pedal push rod shell 4, the pedal Opposing seal forms pedal push rod housing cavity 11 between the partition board being arranged in piston 6 and pedal push rod shell 4, and the pedal pushes away Bar 3 pushes the linear motion in pedal push rod housing cavity 11 of pedal piston 6；The first rubber reaction plate 12, which is connected to, to be stretched Go out pedal piston push rod one end of pedal push rod shell 4；Institute's displacement sensors 2 are mounted on pedal push rod 3.

As shown in Figure 1, the pedal sense simulator is by pedal sense simulator spring 5, pedal sense simulator piston 7 It is formed with pedal sense simulator shell 8；The pedal sense simulator piston 7 is located inside pedal sense simulator shell 8, And pedal sense simulator shell 8 is divided for former and later two relatively independent chambers, the installation of pedal sense simulator spring 5 In 8 rear end chamber of pedal sense simulator shell；5 one sections of pedal sense simulator spring is connected to pedal sense simulator shell 8 bottom of body, the other end are connected on the end face of pedal sense simulator piston 7；8 front end of pedal sense simulator shell Chamber is pedal sense simulator inner cavity 9；When hydraulic pressure of the pedal sense simulator piston 7 in pedal sense simulator inner cavity 9 Rear end chamber movement and then when compression pedal sense simulator spring 5 under oil pressure force effect, pedal sense simulator spring 5 will Elastic resistance is generated, hinders pedal sense simulator piston 7 to move simulating brake in turn and feels；

As shown in Figure 1, being opened on the pedal push rod housing cavity 11 there are two hydraulic fluid port, one of hydraulic fluid port passes through hydraulic pressure Pipeline is connect with pedal sense simulator inner cavity 9, and the first normally closed switch solenoid valve 10 is connected to pedal push rod housing cavity On fluid pressure line between 11 and pedal sense simulator inner cavity 9；Another hydraulic fluid port of pedal push rod housing cavity 11 passes through liquid Pressure pipe road is connect with the A hydraulic fluid ports of oil storage cup 23, and the first normal open switch solenoid valve 16 is connected to pedal push rod housing cavity 11 On fluid pressure line between oil storage cup 23；

Institute's displacement sensors 2, the first normally closed switch solenoid valve 10 and the first normal open switch solenoid valve 16 respectively with electronics Control unit 40 is connected by electronic circuit.

The integrated electric motor type electric control braking IBS modules are generated single by integrated motor, ball screw framework and brake pressure Member composition；

As shown in Figure 1, the integrated motor is by first bearing 13, electric machine casing 15, stator 17, rotor 18 and second bearing 19 compositions；It is fixed by bolts connection between the rear end and pedal push rod shell 4 of the electric machine casing 15；The stator 17 and electricity The madial wall of casing body 15 is fixedly connected, and is equipped with edge in annular installation in 15 inside front and back end of electric machine casing, the rotor 18 is pacified In stator 17, and the front and back end of rotor 18 is mounted on electric machine casing 15 by first bearing 13 and the support of second bearing 19 It is interior, wherein the outer ring of first bearing 13 and the outer ring of second bearing 19 and the annular installation of 15 inside of electric machine casing are interior along inside Cooperation installation, the inner ring of first bearing 13 and the inner ring of second bearing 19 and the shaft-like male cooperation at 18 both ends of rotor are installed；Institute It is hollow structure to state rotor 18, internal for installing ball screw framework；

As shown in Figure 1, the ball screw framework is made of feed screw nut 20, ball body 21 and leading screw screw rod 22；It is described Feed screw nut 20 is mounted on 18 inside of rotor, and feed screw nut 20 is along the circumferential direction relatively fixed with rotor 18 with passing power； The leading screw screw rod 22 is mounted on inside feed screw nut 20, and roller body 21 is mounted on leading screw screw rod 22 and the part of feed screw nut 20 In spiral rolling track, feed screw nut 20, ball body 21 and leading screw screw rod 22 form ball screw assembly, realize the rotation of feed screw nut 20 Conversion between movement and the linear motion of leading screw screw rod 22；Also it is hollow structure inside the leading screw screw rod 22, and in leading screw spiral shell Bar 22 is internally provided with edge in the annular that cross section is rectangle；

As shown in Figure 1, the brake pressure generates unit by master cylinder shell 24, output push rod 25, the second rubber reaction Disk 14, master cylinder first inner chamber piston 26, the first spring of master cylinder 28, master cylinder second inner chamber piston 29, master cylinder second spring 31, second Normally closed switch solenoid valve 32, third normally closed switch solenoid valve 33, the second normally opened linear solenoid valve 34, the normally opened linear solenoid valve of third 39, first pressure sensor 35, second pressure sensor 38, the first wheel cylinder 36 and the second wheel cylinder 37 composition；Institute It states 24 open at one end of master cylinder shell and the front end of electric machine casing 15 is bolted to connection；It wears the rear end of the output push rod 25 Edge in the annular inside leading screw screw rod 22 is crossed, the second rubber reaction plate 14 is mounted on the rear end of output push rod 25, described Second rubber reaction plate 14 and the first rubber reaction plate 12 are just opposite；It is outer that the middle part of the output push rod 25 is equipped with annular Edge, the annular outer match contact connectio with edge in the annular inside leading screw screw rod 22, realize leading screw screw rod 22 and output The power to move along a straight line between push rod 2 transmits；25 front end of output push rod is stretched into master cylinder shell 24 and master cylinder first inner chamber The rear end face of piston 26 offsets, the rear end face and four of the front end face and master cylinder second inner chamber piston 29 of the first inner chamber piston 26 The master cylinder shell 24 in week forms the master cylinder first inner chamber 27 of opposing seal, and the first spring of the master cylinder 28 is mounted in master cylinder first In chamber 27, i.e., the front end face of one end connection first inner chamber piston 26 of the first spring of master cylinder 28, the other end connect in master cylinder second The rear end face of chamber piston 29；The front end face of the master cylinder second inner chamber piston 29 forms opposing seal with the bottom of master cylinder shell 24 Master cylinder second inner chamber 30, the master cylinder second spring 31 is mounted in master cylinder second inner chamber 30, i.e. master cylinder second spring 31 One end connects the front end face of master cylinder second inner chamber piston 29, and the other end connects the bottom surface of master cylinder shell 24；

As shown in Figure 1, the side of the master cylinder first inner chamber 27 is connected to the C hydraulic fluid ports of oil storage cup 23 by fluid pressure line, And first check valve 43, institute are also equipped on the hydraulic pipeline between master cylinder first inner chamber 27 and the C hydraulic fluid ports of oil storage cup 23 Stating the first check valve 43 realizes the C hydraulic fluid ports of oil storage cup 23 to 27 one-way conduction of master cylinder first inner chamber；The one of master cylinder second inner chamber 30 Side is connected to the D hydraulic fluid ports of oil storage cup 23, and the hydraulic pressure between the D of master cylinder second inner chamber 30 and oil storage cup 23 mouths by fluid pressure line It is also equipped with second check valve 44 on pipeline, second check valve 44 realizes the D hydraulic fluid ports of oil storage cup 23 to master cylinder second The one-way conduction of inner cavity 30, master cylinder first inner chamber 27 pass through the list of oil storage cup 23 and corresponding check valve with master cylinder second inner chamber 30 The fluid infusion to two master cylinder inner cavities is realized to conducting effect；The other side of the master cylinder first inner chamber 27 passes through fluid pressure line and Two wheel cylinders 37 connect, and the normally opened linear solenoid valve 39 of the third and second pressure sensor 38 are connected in turn from master cylinder On the connecting line of 27 to the second wheel cylinder 37 of first inner chamber；The other side of the master cylinder second inner chamber 30 passes through fluid pressure line Connect with the first wheel cylinder 36, and the second normally opened linear solenoid valve 34 and first pressure sensor 35 be connected in turn from On the connecting line of 30 to the first wheel cylinder 36 of master cylinder second inner chamber；In addition, the second normally closed switch solenoid valve 32 connects Connecting the fluid pressure line of the normally opened linear solenoid valve of third 39 in master cylinder first inner chamber 27, to connect with master cylinder second inner chamber 30 second normal Between the fluid pressure line for opening linear solenoid valve 34, the third normally closed switch solenoid valve 33 is connected to the connection of master cylinder second inner chamber 30 Between the fluid pressure line of second normally opened linear solenoid valve 34 and the B oil outlets of oil storage cup；

The second normally closed switch solenoid valve 32, third normally closed switch solenoid valve 33, the second normally opened linear solenoid valve 34, Three normally opened linear solenoid valves 39, first pressure sensor 35, second pressure sensor 38 and integrated motor respectively with electronics control 40 electronic circuit of unit connection processed.

In aforementioned electronic connection, the first normally closed switch solenoid valve 10, the second normally closed switch solenoid valve 32, third Normally closed switch solenoid valve 33, the first normal open switch solenoid valve 16, the second normally opened linear solenoid valve 34, the normally opened linear solenoid valve of third 39 and integrated motor and electronic control unit 40 be that driving circuit connect, electronic control unit 40 is sent to driving and controls respectively Signal processed；Institute's displacement sensors 2, first pressure sensor 35 and second pressure sensor 38 are letter with electronic control unit 40 The connection of number Acquisition Circuit acquires and is sent to electronic control unit 40 after corresponding displacement or hydraulic pressure force signal and further locates respectively Reason.

The first normally closed switch solenoid valve 10, the second normally closed switch solenoid valve 32, third normally closed switch solenoid valve 33 It is in closed state in the power-off state, is in conducting state in the energized state；The first normal open switch solenoid valve 16, the normally opened linear solenoid valve of the second normally opened linear solenoid valve 34, third 39 is in conducting state in the power-off state, is being powered It is closed under state.

In the integrated electric motor type electric control braking IBS modules, first wheel cylinder, 36 and second wheel cylinder 37 divides Corresponding wheel is not braked by connecting drum brake or disk brake realization.

In the electric mechanical braking EMB modules, corresponding wheel is braked by two disk brakes respectively, As shown in Figure 1, the first wedge brake 41 and the second wedge brake 42 are respectively adopted in the electric mechanical braking EMB modules Corresponding wheel is braked, first wedge brake 41 is identical with 42 structure of the second wedge brake.

As shown in Fig. 2, the first wedge brake by brake lining 63, outer voussoir 64, interior voussoir 65, roller 62, motor 66, Ball-screw screw rod 67, ball-screw nut 69 and driving mechanism 68 form；64 outside of the outer voussoir is planar structure, interior There are three wedge grooves for side band, and the both ends of one wedge groove in inside of outer voussoir 64 are vertically equipped with a pair of of driving plate, the interior wedge 65 medial surface of block is oppositely arranged with 64 medial surface of outer voussoir, and set on the medial surface of interior voussoir 65 there are three with 64 phase of outer voussoir The wedge groove matched forms three and the narrow centre in both ends between the wedge groove of 64 inside of outer voussoir and the wedge groove on the inside of interior voussoir 65 Wide wedge shape space, the roller 62 are mounted in the wedge shape space；The motor 66 is arranged in pairs in 65 outside of interior voussoir Face both ends, the motor 66 are connect by electronic circuit with 40 drive signal of electronic control unit, the ball-screw nut 69 End and the output end of motor 66 are coaxially connected, and the ball-screw screw rod 67 is connected with ball-screw nut 69 and forms rolling Ballscrew pair；Two ball-screw screw rods 67 pass through driving plate, the driving mechanism 68 to be mounted on ball wire in opposite directions respectively The end of thick stick screw rod 67, and driving mechanism 68 is located between a pair of of driving plate；Motor 66 drives ball-screw nut 69 after starting Rotation, the rotation of ball-screw nut 69 drive ball-screw screw rod 67 to move along a straight line, and driving mechanism 68 is in ball-screw screw rod 67 Drive under be further driven to outer voussoir 64 along 67 direction of ball-screw screw rod move along a straight line, at this time in voussoir 65 it is opposing stationary, The spatial movement that roller 62 is relatively turned from intermediate wide space to end in wedge shape space, and then drive outer voussoir 64 vertical It moves along a straight line in 67 direction of ball-screw screw rod, and then drives the brake lining 63 on the outside of it perpendicular to 67 side of ball-screw screw rod To linear motion, i.e., brake force is acted on into friction plate by brake lining 63, and then brake to corresponding wheel.

As previously mentioned, electric mechanical braking EMB in the compound line control brake system of intelligent automobile described in the utility model and Integrated electric motor type electric control braking IBS modules correspond to two brakes respectively, i.e., control two wheels of vehicle respectively, therefore according to not The wheel of same brake module control different location, practical fortune of the compound line control brake system described in the utility model on vehicle There are following four configurations in, respectively：

Configuration one：As shown in figure 3, front axle revolver is braked with front axle right wheel using electric motor type electric control braking IBS modules are integrated, Rear axle revolver is braked with rear axle right wheel using electric mechanical braking EMB modules；

Configuration two：As shown in figure 4, rear axle revolver is braked with rear axle right wheel using electric motor type electric control braking IBS modules are integrated, Front axle revolver is braked with front axle right wheel using electric mechanical braking EMB modules；

Configuration three：As shown in figure 5, front axle revolver is braked with rear axle right wheel using electric motor type electric control braking IBS modules are integrated, Front axle right wheel is braked with rear axle revolver using electric mechanical braking EMB modules；

Configuration four：As shown in fig. 6, front axle right wheel is braked with rear axle revolver using electric motor type electric control braking IBS modules are integrated, Front axle revolver is braked with rear axle right wheel using electric mechanical braking EMB modules；

The specific work process and function of the utility model realize that process is as follows：

According to the concrete structure of the compound line control brake system of aforementioned intelligent automobile composition and connection relation, the utility model institute The brake control process for stating the compound line control brake system of intelligent automobile includes：The braking of compound line control brake system under energized state The brake control process of compound line control brake system under control process and off-position；

The control process of the braking process is specific as follows：

1, under energization effective status, the brake control process of the compound line control brake system is as follows：

1.1, brake pedal brake feel simulation process：

As shown in Figure 1, when driver's pushes pedals 1, pedal 1 pushes pedal push rod 3 to move forward, and the promotion of pedal push rod 3 is stepped on The movement in pedal push rod housing cavity 11 of plate piston 6, the first normally closed switch electromagnetism of electronic control unit 40 (ECU) control at this time Valve 10, which is powered, to be opened, and electronic control unit 40 controls the energization of the first normal open switch solenoid valve 16 and is closed, pedal push rod housing cavity Hydraulic oil in 11, by fluid pressure line, pedal sense is flowed into through the first normally closed switch solenoid valve 10 under the action of pedal piston 6 Feel in simulator inner cavity 9, hydraulic oil pushes pedal sense simulator piston 7 to move, and is connected with after pedal sense simulator piston 7 Pedal sense simulator spring 5, pedal sense simulator spring 5 push generation deformation to be formed by pedal sense simulator piston 7 Elastic resistance realizes that simulation pedal brake is felt；

1.2, electric motor type electric control braking IBS module pressurization control processes are integrated：

As shown in Figure 1, when driver's pushes pedals 1, pedal displacement signal transmission is extremely controlled electronically displacement sensor 2 In unit 40 (ECU), electronic control unit 40 is according to the pedal displacement signal of input, or without pushes pedals 1 the case where Under, electronic control unit 40 judges by other onboard sensors and detecting system and exports control signal, the electronic control The output of unit 40 integrates the control signal of electric motor type electric control braking IBS modules, controls the output for integrating motor, integrates motor in electricity Start under the control of sub-control unit 40, rotor 18 rotates forward and the feed screw nut 20 for driving it internal rotates, feed screw nut 20 drive leading screw screw rod 22 by ball body 21, are the straight line for driving leading screw screw rod 22 by the convert rotational motion of feed screw nut 20 Movement, 22 forward end of driving leading screw screw rod (close to cavity direction in master cylinder) movement, leading screw screw rod 22 is hollow structure, exports push rod 25 are located therein, and leading screw screw rod 22 pushes output push rod 25 to travel forward (towards pressure by the annular protrusion in its inside circumference The direction of contracting master cylinder intracavity space moves), output push rod 25 further pushes master cylinder inner cavity first piston 26 to travel forward；

1.2.1,37 booster brake of the second wheel cylinder：

As shown in Figure 1, under the monitoring of second pressure sensor 38, when the pressure in the second wheel cylinder 37 reaches default Brake pressure before, electronic control unit 40 sends out control instruction, and the control normally opened linear solenoid valve 39 of third is in power-off and opens Channel status, control the second normally closed switch solenoid valve 32 and third normally closed switch solenoid valve 33 and be in the open circuit that power-off is closed State, therefore according to noted earlier, output push rod 25 push master cylinder inner cavity first piston 26 to travel forward compression master cylinder first inner chamber 27 spaces generate brake pressure in master cylinder first inner chamber 27, and the brake fluid in master cylinder first inner chamber 27 passes through fluid pressure line, warp It is reached in the second wheel cylinder 37 by the normally opened linear solenoid valve 39 of third, generates brake force, realize the supercharging of the second wheel cylinder 37 Braking；In addition, during above-mentioned second wheel cylinder, 37 booster brake, electronic control unit 40 is to the normally opened linear electromagnetic of third Valve 39 sends out regulating control command, and the aperture and then linear regulation of the normally opened linear solenoid valve of control third 39 flow through the normally opened line of third The brake fluid pressure of property solenoid valve 39；

1.2.2,36 booster brake of the first wheel cylinder：

As shown in Figure 1, under the monitoring of first pressure sensor 35, when the pressure in the first wheel cylinder 36 reaches default Brake pressure before, electronic control unit 40 sends out control instruction, and the second normally opened linear solenoid valve 34 of control is in power-off and opens Channel status, control the second normally closed switch solenoid valve 32 and third normally closed switch solenoid valve 33 and be in what acquiescence power-off was closed Off state, therefore according to noted earlier, output push rod 25 push master cylinder inner cavity first piston 26 to travel forward compression master cylinder first 27 space of inner cavity generates brake pressure, and the brake pressure in master cylinder first inner chamber 27 further pushes master cylinder second inner chamber piston 29 It travels forward, and then compresses the space of master cylinder second inner chamber 30, brake pressure, master cylinder second are generated in master cylinder second inner chamber 30 Brake fluid in inner cavity 30 is reached via the second normally opened linear solenoid valve 34 in the first wheel cylinder 36, production by fluid pressure line Raw brake force, realizes 36 booster brake of the first wheel cylinder；In addition, during above-mentioned first wheel cylinder, 36 booster brake, Electronic control unit 40 sends out regulating control command to the second normally opened linear solenoid valve 34, controls the second normally opened linear solenoid valve 34 Aperture so that linear regulation flow through the brake fluid pressure of the second normally opened linear solenoid valve 34；

1.3, electric motor type electric control braking IBS module service laps are integrated and controls process：

1.3.1,36 service lap of the first wheel cylinder：

As shown in Figure 1, when needing the first wheel cylinder 36 to keep brake pressure, electronic control unit 40 (ECU) is to the Two normally opened linear solenoid valves 34 send out control instruction, and the second normally opened linear solenoid valve 34 of control is in the breaking shape for being powered and being closed State, at the same time, electronic control unit 40 (ECU) control the second normally closed switch solenoid valve 32 and third normally closed switch solenoid valve 33 It is in the off state that power-off is closed, and then realizes the holding to 36 inside brake pressure of the first wheel cylinder；

1.3.2,37 service lap of the second wheel cylinder：

As shown in Figure 1, when needing the second wheel cylinder 37 to keep brake pressure, electronic control unit 40 (ECU) is to the Three normally opened linear solenoid valves 39 send out control instruction, and the control normally opened linear solenoid valve 39 of third is in the breaking shape for being powered and being closed State, at the same time, electronic control unit 40 (ECU) control the second normally closed switch solenoid valve 32 and third normally closed switch solenoid valve 33 It is in the off state that power-off is closed, and then realizes the holding to 37 inside brake pressure of the second wheel cylinder；

1.4, electric motor type electric control braking IBS module braking compression releases are integrated and controls process：

As shown in Figure 1, when driver unclamps pedal 1, the returning place force of pedal sense simulator spring 5 pushes pedal sense Emulator piston 7 moves forward, or without pushes pedals 1, electronic control unit 40 passes through other vehicle-mounted biographies Sensor and detecting system judge and export control signal, and electronic control unit 40 (ECU) controls the first normally closed switch electromagnetism at this time Valve 10, which is powered, to be opened, and electronic control unit 40 controls the energization of the first normal open switch solenoid valve 16 and is closed, and pedal sense simulator is lived Plug 7 pushes hydraulic oil to be flowed into pedal push rod housing cavity 11 by the first normally closed switch solenoid valve 10 via fluid pressure line, steps on Hydraulic oil in plate push rod housing cavity 11 moves after pushing pedal piston 6, is moved after pedal piston 6 and then promotion pedal push rod 3；Peace Displacement sensor 2 on pedal push rod 3 is by pedal displacement signal transmission to electronic control unit 40 (ECU), electronics control Unit 40 processed exports the control signal for integrating electric motor type electric control braking IBS modules, domination set according to the pedal displacement signal of input At the output of motor, integrates motor driving motor rotor 18 under the control of electronic control unit 40 and invert, 18 band of rotor It moves its internal feed screw nut 20 to reversely rotate, feed screw nut 20 drives leading screw screw rod 22 by ball body 21, by feed screw nut 20 convert rotational motion is the linear motion for driving leading screw screw rod 22, and driving leading screw screw rod 22 is to the back-end (far from master cylinder inner cavity Direction) movement；

1.4.1,36 braking compression release of the first wheel cylinder：

As shown in Figure 1, leading screw screw rod 22 is backward during end motion, under the monitoring of first pressure sensor 35, when Before pressure in first wheel cylinder 36 reaches preset pressure value, electronic control unit 40 sends out control instruction, and control second is often It opens linear solenoid valve 34 and is in the channel status that power-off is opened, the high-pressure brake liquid in the first wheel cylinder 36 passes through fluid pressure line It is back in master cylinder second inner chamber 30 via the second normally opened linear solenoid valve 34, the high-pressure brake liquid in master cylinder second inner chamber 30 pushes away Dynamic master cylinder inner cavity second piston 29 moves backward, and high-pressure brake liquid, master cylinder first inner chamber are generated in master cylinder first inner chamber 27 High-pressure brake liquid in 27 pushes master cylinder inner cavity first piston 26 to move backward, the mistake that master cylinder inner cavity first piston 26 moves backward It pushes output push rod 25 to be moved backward in the axial direction in 22 inner cavity of leading screw screw rod in journey, realizes the braking of the first wheel cylinder 36 Decompression；Analogously with the first wheel cylinder 36 braking pressurization, during above-mentioned first wheel cylinder, 36 braking compression release, Electronic control unit 40 sends out regulating control command to the second normally opened linear solenoid valve 34, controls the second normally opened linear solenoid valve 34 Aperture so that linear regulation flow through the brake fluid pressure of the second normally opened linear solenoid valve 34；

In addition, during above-mentioned first wheel cylinder, 36 braking compression release, electronic control unit 40 can also be according to reality It needs to control third normally closed switch solenoid valve 33 in the channel status opened that is powered, makes the high compacting in the first wheel cylinder 36 Hydrodynamic flows back into oil storage via the second normally opened linear solenoid valve 34 and third normally closed switch solenoid valve 33 successively by fluid pressure line Cup 23 is to realize 36 fast decompression of the first wheel cylinder；

1.4.2,37 braking compression release of the second wheel cylinder：

As shown in Figure 1, leading screw screw rod 22 is backward during end motion, under the monitoring of second pressure sensor 38, when Before pressure in second wheel cylinder 37 reaches preset pressure value, electronic control unit 40 sends out control instruction, and control third is normal It opens linear solenoid valve 39 and is in the channel status that power-off is opened, the high-pressure brake liquid in the second wheel cylinder 37 passes through fluid pressure line It is back in master cylinder first inner chamber 27 via the normally opened linear solenoid valve of third 39, the high-pressure brake liquid in master cylinder first inner chamber 27 pushes away Dynamic master cylinder inner cavity first piston 26 moves backward, and master cylinder inner cavity first piston 26 pushes output push rod 25 during moving backward It is moved backward in the axial direction in 22 inner cavity of leading screw screw rod, realizes 37 braking compression release of the second wheel cylinder；With the second braked wheel Cylinder 37 brake pressurization analogously, during above-mentioned second wheel cylinder, 37 braking compression release, electronic control unit 40 to The normally opened linear solenoid valve of third 39 sends out regulating control command, the aperture of the normally opened linear solenoid valve of control third 39 and then linearly adjusts Brake fluid pressure of the throttling through the normally opened linear solenoid valve of third 39；

In addition, during above-mentioned second wheel cylinder, 37 braking compression release, electronic control unit 40 can also be according to reality It needs to control the second normally closed switch solenoid valve 32 and third normally closed switch solenoid valve 33 and is in the channel status for being powered and opening, make the High-pressure brake liquid in two wheel cylinders 37 is opened via the normally opened linear solenoid valve 39, second of third is normally closed successively by fluid pressure line Powered-down magnet valve 32 and third normally closed switch solenoid valve 33 flow back into oil storage cup 23 to realize 36 fast decompression of the first wheel cylinder；

1.5, electric mechanical braking EMB modules brake pressurization control process：

First wedge brake 41 is identical with the pressurization control process of the second wedge brake 42, electronic control unit 40 need that the first wedge brake 41 or individually supercharging or the control of the second wedge brake 42 can be controlled respectively according to practical braking First wedge brake 41 and the second wedge brake 42 are pressurized simultaneously, the braking of first wedge brake, 41 or second wedge-type The pressurization control process of device 42 is as follows：

As shown in Figure 1, when driver's pushes pedals 1, pedal displacement signal transmission is extremely controlled electronically displacement sensor 2 In unit 40 (ECU), the pedal displacement signal that electronic control unit 40 is detected and transmitted according to displacement sensor 2, or in nothing In the case of needing pushes pedals 1, electronic control unit 40 is judged by other onboard sensors and detecting system and exports control Signal, the electronic control unit 40 is to electric mechanical braking EMB moulds 41 or second wedge-type system of the first wedge brake in the block The dynamic output of device 42 control signal, as shown in Fig. 2, under the drive control of electronic control unit 40, motor 66, which rotates forward, to be started, and is led to The linear motion that rotary motion is transmitted and is converted into roller screw screw rod 67 by ball-screw nut 69 is crossed, positioned at executing agency Under the cooperation of the roller screw screw rod 67 at 68 both ends drives, executing agency 68 will drive the driving plate of outer voussoir 64 along roller screw The axial movement of screw rod 65 due to being the wide wedge shape space in the narrow centre in both ends between outer voussoir 64 and interior voussoir 65, therefore executes machine Structure 68 drives the driving plate of outer voussoir 63 along the axial from the centre position of wedge shape space to wedge shape space of roller screw screw rod 65 End position movement while, under the squeezing action of roller 62 and interior voussoir 65, executing agency 68 will also drive outer voussoir 63 along roller screw screw rod 65 radial motion, i.e. outer voussoir 64 pushes brake lining 63 to travel forward, makes brake lining 63 Brake pressure between brake disc increases；

In above-mentioned electric mechanical braking EMB modules brake pressurization, motor 66 is controlled by electronic control unit 40 The braking moment of output realizes that control is applied to the brake pressure in brake lining 63, realizes electric mechanical braking EMB module systems The adjusting of power.

1.6, electric mechanical braking EMB modules service lap controls process：

First wedge brake 41 is identical with the holding pressure control process of the second wedge brake 42, electronic control unit 40 according to practical braking need that the first wedge brake 41 or the 42 independent pressurize of the second wedge brake or control can be controlled respectively 42 pressurize simultaneously of first wedge brake 41 and the second wedge brake, the braking of first wedge brake, 41 or second wedge-type The holding pressure control process of device 42 is as follows：

As shown in Fig. 2, when needing the first wedge brake 41 or the second wedge brake 42 keeps brake pressure, electronics Control unit 40 (ECU) sends out control instruction to motor 66, controls 66 rotation out of service of motor, executing agency 68 is made to be maintained at Position needed for goal pressure is motionless, ensures that outer voussoir 64 and 63 position of brake lining are fixed with this, realizes the holding of brake pressure；

1.7, electric mechanical braking EMB modules braking compression release controls process：

First wedge brake 41 is identical with the Decompression Controlling process of the second wedge brake 42, electronic control unit 40 need that the first wedge brake 41 or individually decompression or the control of the second wedge brake 42 can be controlled respectively according to practical braking First wedge brake 41 and the second wedge brake 42 depressurize simultaneously, the braking of first wedge brake, 41 or second wedge-type The Decompression Controlling process of device 42 is as follows：

As shown in Figure 1, when driver unclamps pedal 1, pedal displacement signal transmission is extremely controlled electronically displacement sensor 2 In unit 40 (ECU), the pedal displacement signal that electronic control unit 40 is detected and transmitted according to displacement sensor 2, or in nothing In the case of needing control pedal 1, electronic control unit 40 is judged by other onboard sensors and detecting system and exports control Signal, the electronic control unit 40 is to electric mechanical braking EMB moulds 41 or second wedge-type system of the first wedge brake in the block The dynamic output of device 42 control signal, as shown in Fig. 2, under the drive control of electronic control unit 40, motor 66 inverts, and passes through rolling The linear motion of roller screw screw rod 67 is transmitted and is converted into rotary motion by screw nut 69, positioned at 68 liang of executing agency Under the cooperation of the roller screw screw rod 67 at end drives, executing agency 68 will drive the driving plate of outer voussoir 64 along roller screw screw rod 65 axial movement, due to being the wide wedge shape space in the narrow centre in both ends between outer voussoir 64 and interior voussoir 65, therefore executing agency 68 Drive the driving plate of outer voussoir 63 along the axial direction of roller screw screw rod 65 from the end position of wedge shape space into wedge shape space Between position move while, roller 62 and interior voussoir 65 are released, and executing agency 68 will drive outer voussoir 63 along roller silk The radial motion of thick stick screw rod 65 makes outer voussoir 64 discharge brake lining 63 and moves backward, between brake lining 63 and brake disc Brake pressure reduces；

In above-mentioned electric mechanical braking EMB modules brake pressurization, motor 66 is controlled by electronic control unit 40 The braking moment of output controls the decompression amplitude between brake lining 63 and brake disc, realizes electric mechanical braking EMB module systems The adjusting of power.

2, under power-off failure state, the brake control process of the compound line control brake system is as follows：

As shown in Figure 1, when the compound line control brake system fails because of power-off, each solenoid valve is restored to power-off Initial default state, i.e. the first normally closed switch solenoid valve 10, the second normally closed switch solenoid valve 32 and third normally closed switch solenoid valve 33 are in the off state that power-off is closed, and the first normal open switch solenoid valve 16, the second normally opened linear solenoid valve 34 and third are normal It opens linear solenoid valve 39 and is in open state；Electric mechanical braking EMB modules are not involved in braking process because of power-off failure；

When driver's pushes pedals 1 carry out power-off failure braking, pedal 1 pushes pedal push rod 3, pedal push rod 3 to push Pedal piston 6, the hydraulic oil in pedal push rod housing cavity 11 are flowed by the first normal open switch solenoid valve 16 in oil storage cup 23, Pedal piston 6 moves forward, and the other end of pedal piston 6 stretches out pedal push rod housing cavity 11, and is connected with the first rubber Glue reaction plate 12, pedal piston 6 push the movement of the first rubber reaction plate 12 until the first rubber reaction plate 12 and second Rubber reaction plate 14 contacts, and output push rod 25 is pushed to travel forward, output push rod 25 push master cylinder inner cavity first piston 26 to Preceding movement generates brake pressure in master cylinder first inner chamber 27；Brake pressure in master cylinder first inner chamber 27 can push master cylinder Two inner cavity pistons 29 generate brake pressure in master cylinder second inner chamber 30；Brake fluid in master cylinder second inner chamber 30 passes through hydraulic pressure Pipeline reaches via the second normally opened linear solenoid valve 34 in the first wheel cylinder 36, and the brake fluid in master cylinder first inner chamber 27 passes through Fluid pressure line reaches via the normally opened linear solenoid valve of third 39 in the second wheel cylinder 37, is achieved in braking when power-off failure Supercharging；

When driver, which unclamps pedal 1, releases braking, brake fluid in the first wheel cylinder 36 by fluid pressure line via Second normally opened linear solenoid valve 34 flows back to master cylinder second inner chamber 30, and the brake fluid in the second wheel cylinder 37 is passed through by fluid pressure line Master cylinder first inner chamber 27, master cylinder second inner chamber piston 29 and master cylinder first inner chamber piston are flowed back to by the normally opened linear solenoid valve of third 39 26 end movements respectively backward, master cylinder first inner chamber piston 26 push output push rod 25 to move to the back-end, after being located at output push rod 25 End the second rubber reaction plate 14 push successively the first rubber reaction plate 12, pedal piston 6, pedal push rod 3 and pedal 1 to Rear end exercise recovery is to the original state for releasing braking, and at the same time, oil storage cup 23 is to pedal push rod housing cavity 11, master cylinder the One inner cavity 27 and master cylinder second inner chamber 30 carry out fluid infusion, are ready for braking next time.

According to each control process of above-mentioned compound line control brake system, compound line control brake system described in the utility model The function that can be realized includes：Conventional brake, abs braking, TCS brakings, ESC brakings, power-off failure braking, regenerative braking are adjusted And the intelligence auxiliary under ACC, AEB and APA operating mode drives and brakes, the process of each brake control process and application is specific as follows：

1, conventional brake：Under energization effective status, according to aforementioned control process, driver notification control pedal 1, the collection It is carried out at the same time braking supercharging or system at electric motor type electric control braking IBS moulds 36 and second wheel cylinder 37 of the first wheel cylinder in the block Dynamic decompression corresponds ground, electric mechanical braking EMB moulds 41 and second wedge-type of the first wedge brake braking in the block Device 42 is carried out at the same time braking supercharging or braking compression release；

2, abs braking：When carrying out conventional brake, ABS is triggered when electronic control unit 40 judges that locking occurs for wheel, After triggering ABS controls, according to aforementioned control process, integrated electric motor type electric control braking IBS moulds first braked wheel in the block Cylinder 36 and the second wheel cylinder 37 and the electric mechanical braking EMB moulds 41 and second wedge-type of the first wedge brake in the block Brake 42 carries out braking compression release, service lap or braking supercharging, and this process repeatedly successively simultaneously, until pressure is adjusted to Optimum state；

3, TCS is braked：In vehicle travel process, under energization effective status, electronic control unit 40 judges part vehicle Wheel has skidded, and TCS control triggerings are not necessarily to pushes pedals 1 in the case, direct according to judging by electronic control unit 40 Control integrates electric motor type electric control braking IBS modules or electric mechanical braking EMB modules, realizes wheel cylinder and brake complete solution Coupling, the corresponding wheel cylinder or brake installed of slip wheel, braking increasing is carried out under the control of electronic control unit 40 respectively Pressure, service lap or braking compression release realize the control to slip wheel brake pressure, until eliminating the skidding of corresponding wheel；

4, ESC is braked：In vehicle travel process, under energization effective status, electronic control unit 40 judges part vehicle There is unstability in wheel, and ESC control triggerings are not necessarily to pushes pedals 1 in the case, direct according to judging by electronic control unit 40 Control integrates electric motor type electric control braking IBS modules or electric mechanical braking EMB modules, realizes wheel cylinder and brake complete solution Coupling, electronic control unit 40 carry out braking supercharging, service lap to the wheel cylinder or brake installed corresponding to wheel respectively Or braking compression release, so that the brake pressure of corresponding wheel is reached desired value, to ensure intact stability；

5, power-off failure is braked：Under power-off failure state, as previously mentioned, driver integrates electric motor type by pushes pedals 1 Electric control braking IBS moulds 36 and second wheel cylinder 37 of the first wheel cylinder in the block realizes braking supercharging or braking compression release, electronics Mechanical braking EMB modules are not involved in braking process because of power-off failure；

6, regenerative braking is adjusted：When vehicle carries out regenerative braking, pedal force and wheel cylinder brake pressure need to be realized Full decoupling, i.e., during carrying out Brake energy recovery, wheel cylinder reduces the brake pressure demand that braking system provides, but The pedal force of driver is needed to remain unchanged.The braking system can be realized again by the pedal sense simulator in braking system The full decoupling of pedal force and pressure of wheel cylinder in raw braking process.When the braking system is during normal brake application, regeneration After braking intervention, brake force needed for four wheels reduces, and by rational control algolithm, calculates integrated electric motor type electric control braking Control signal in IBS modules needed for the corresponding normally opened linear solenoid valve of two wheel cylinders controls two linear solenoid valves two respectively The pressure difference at end realizes the linear regulation of brake pressure；Simultaneously and calculate drive needed for motor in electric mechanical braking EMB modules The progressive error of dynamic leading screw screw rod, realizes the adjusting of brake pressure, thus makes brake force needed for four-wheel and brake force base needed for target This is consistent, realizes that regenerative braking is adjusted.

7, ACC, AEB, LKA and APA operating mode：Currently, the auxiliary driving function of vehicle is more and more abundant, the utility model institute Also intelligently auxiliary drives function to the braking system stated for compatible part.When vehicle is in auxiliary driving cycles operation, vehicle control Whether device processed can need triggering to brake according to the demand estimation of vehicle, when needed, without trampling brake pedal, by full-vehicle control Device is output control signals in the electronic control unit 40 of compound line control brake system described in the utility model, by compound line traffic control The electronic control unit 40 of dynamic system directly controls electric mechanical braking EMB modules or integrated electric motor type electric control braking IBS modules Braking supercharging, service lap or braking compression release are carried out, the braking requirement being achieved under ACC, AEB, LKA or APA pattern.

Based on the brake control process of above-mentioned compound line control brake system, and combine aforementioned compound line control brake system in vehicle Four kinds of configurations present in practice on integrate electric motor type electric control braking IBS moulds two wheel cylinders in the block and electricity Four groups of brake apparatus that sub- mechanical braking EMB moulds two brakes in the block are formed are a pair of respectively at four wheels one of vehicle It answers, realizes and control for brake that is accurate, effective and stablizing is carried out to the vehicle under various configuration.

Claims (6)

1. the compound line control brake system of intelligent automobile, it is characterised in that：By brake pedal mechanism, electronic control unit, storage Lubricating cup, electric mechanical braking EMB modules and integrated electric motor type electric control braking IBS modules composition；

The brake that the electric mechanical braking EMB modules are connect with electronic control unit electronic signal respectively by two forms；

The integrated electric motor type electric control braking IBS modules generate unit group by integrated motor, ball screw framework and brake pressure At；The integrated motor is connect with electronic control unit signal, and the feed screw nut in ball screw framework is fixed on integrated motor Rotor in, rotor by power by ball screw framework be transferred to brake pressure generate unit output push rod；

The brake pressure generates in unit, and front and back to be set successively there are two master cylinder inner cavity, the master cylinder inner cavity positioned at rear end is corresponding Master cylinder inner cavity piston is connected with output push rod, and the straight reciprocating motion under the promotion of output push rod；The master cylinder inner cavity Side is respectively via normally opened linear solenoid valve and wheel cylinder piping connection；The master cylinder inner cavity other side is respectively via check valve and storage Lubricating cup piping connection；Any point is via normally closed switch electromagnetism on the pipeline that master cylinder inner cavity is connected with normally opened linear solenoid valve Valve and oil storage cup piping connection；Pressure sensor is installed in the liquid oil port of the wheel cylinder；

The brake pedal mechanism, electric mechanical braking EMB modules and integrated electric motor type electric control braking IBS moulds institute in the block There are sensor and solenoid valve respectively to be connect with electronic control unit signal.

2. the compound line control brake system of intelligent automobile as described in claim 1, it is characterised in that：

The brake pedal mechanism is by pedal gear, pedal sense simulator, the first normally closed switch solenoid valve (10) and One normal open switch solenoid valve (16) forms；

The pedal gear is by pedal (1), displacement sensor (2), pedal push rod (3), pedal push rod shell (4) pedal piston (6) it is formed with the first rubber reaction plate (12)；

The pedal (1), pedal push rod (3), pedal piston (6) and the first rubber reaction plate (12) are sequentially connected to be mounted on and step on In plate push rod shell (4), pedal push rod housing cavity (11) is formed between the pedal piston (6) and pedal push rod shell (4), The first rubber reaction plate (12) is connected to the pedal piston push rod one end for stretching out pedal push rod shell (4), the displacement Sensor (2) is mounted on pedal push rod (3)；

The pedal push rod housing cavity (11) is respectively via the first normally closed switch solenoid valve (10) and the first normal open switch electromagnetism Valve (16) and pedal sense simulator and oil storage cup (23) piping connection.

3. the compound line control brake system of intelligent automobile as claimed in claim 2, it is characterised in that：

The pedal sense simulator is by pedal sense simulator spring (5), pedal sense simulator piston (7) and pedal sense Simulator shell (8) forms；

The pedal sense simulator piston (7) is located at pedal sense simulator shell (8) inside, the pedal sense simulator Spring (5) is mounted on pedal sense simulator shell (8) rear chamber, and pedal sense simulator shell (8) front chamber is to step on Plate sense simulator inner cavity (9)；The pedal push rod housing cavity (11) via the first normally closed switch solenoid valve (10) with step on Plate sense simulator inner cavity (9) piping connection.

4. the compound line control brake system of intelligent automobile as described in claim 1, it is characterised in that：

The integrated motor is by first bearing (13), electric machine casing (15), stator (17), rotor (18) and second bearing (19) group At；The electric machine casing (15) is fixedly connected with pedal push rod shell (4)；The stator (17) is fixed in electric machine casing (15) Side, the rotor (18) is mounted on the inside of stator (17), and the front and back end of rotor (18) passes through first bearing (13) and the second axis Hold (19) support；

The ball screw framework is made of feed screw nut (20), ball body (21) and leading screw screw rod (22)；The ball-screw Mechanism is mounted on the inside of rotor (18), and the internal leading screw screw rod (22) is also hollow structure.

5. the compound line control brake system of intelligent automobile as described in claim 1 or 4, it is characterised in that：

The brake pressure generates unit by master cylinder shell (24), output push rod (25), the second rubber reaction plate (14), master cylinder First inner chamber piston (26), the first spring of master cylinder (28), master cylinder second inner chamber piston (29), master cylinder second spring (31), second Normally closed switch solenoid valve (32), third normally closed switch solenoid valve (33), the second normally opened linear solenoid valve (34), third are normally opened linear Solenoid valve (39), first pressure sensor (35), second pressure sensor (38), the first wheel cylinder (36) and the second braking Wheel cylinder (37) forms；

The master cylinder shell (24) is fixedly connected with electric machine casing (15)；

The rear end of the output push rod (25) passes through leading screw screw rod (22) internal, and the second rubber reaction plate (14) is mounted on Export the rear end of push rod (25)；

It is equipped with interior edge in the leading screw screw rod (22), and is in contact and connect with the outer of output push rod (25)；

Master cylinder shell (24) is divided into master cylinder first by the master cylinder first inner chamber piston (26) with master cylinder second inner chamber piston (29) Inner cavity (27) and master cylinder second inner chamber (30), the first spring of the master cylinder (28) and master cylinder second spring (31) are separately mounted to lead In cylinder first inner chamber (27) and master cylinder second inner chamber (30)；

The side of the master cylinder first inner chamber (27) and master cylinder second inner chamber (30) is respectively via the first check valve (43) and second Check valve (44) piping connection is in oil storage cup (23), the other side of the master cylinder first inner chamber (27) and master cylinder second inner chamber (30) Respectively via the normally opened linear solenoid valve of third (39) and the second normally opened linear solenoid valve (34) and the second wheel cylinder (37) and the One wheel cylinder (36) piping connection；In the pipeline that master cylinder first inner chamber (27) is connected with the normally opened linear solenoid valve of third (39) Upper any point is via the second normally closed switch solenoid valve (32) and oil storage cup piping connection；In master cylinder second inner chamber (30) and second Any point is via third normally closed switch solenoid valve (33) and oil storage cup pipe on the pipeline that normally opened linear solenoid valve (34) is connected Road connects；

The first pressure sensor (35) and second pressure sensor (38) are separately mounted to the first wheel cylinder (36) and The liquid oil port of two wheel cylinders (37).

6. the compound line control brake system of intelligent automobile as described in claim 1, it is characterised in that：

The electric mechanical braking EMB moulds brake in the block is wedge brake, and the wedge brake is by brake lining (63), outer voussoir (64), interior voussoir (65), roller (62), motor (66), ball-screw screw rod (67), ball-screw nut (69) and driving mechanism (68) forms；

The brake lining (63) is fixed on the outside of outer voussoir (64), wedge groove is equipped on the inside of outer voussoir (64), and in outer voussoir (64) inside is equipped with driving plate, and the inside of the interior voussoir (65) is equipped with the wedge groove to match with outer voussoir (64) inside, outside Voussoir (64) is mounted on the wedge shape with the wide wedge shape space in the narrow centre in both ends, the roller (62) is formed on the inside of interior voussoir (65) In space；

The ball-screw nut (69) and the output end of motor (66) are coaxially connected, the ball-screw screw rod (67) and ball Feed screw nut (69) mating connection forms ball screw assembly,；

The driving mechanism (68) is on the end of ball-screw screw rod (67), driving mechanism (68) and outer voussoir (64) Driving plate is connected, and under the driving of motor (66), driving mechanism (68) drives outer voussoir (64) to move by driving plate, roller (62) movement in wedge shape space drives brake lining (63) movement of outer voussoir (64) outward to generate brake force；

The motor (66) connect with electronic control unit (40) signal.