CN203126814U - Active journey simulator for brake pedal - Google Patents
Active journey simulator for brake pedal Download PDFInfo
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- CN203126814U CN203126814U CN 201320125769 CN201320125769U CN203126814U CN 203126814 U CN203126814 U CN 203126814U CN 201320125769 CN201320125769 CN 201320125769 CN 201320125769 U CN201320125769 U CN 201320125769U CN 203126814 U CN203126814 U CN 203126814U
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Abstract
The utility model discloses an active journey simulator for a brake pedal, and aims to solve the problems that the requirement for the performance of a hydraulic adjusting unit is too high and the utilization of the conventional components is insufficient in the prior art. The active journey simulator comprises a belt tooth internal recycling nut, a push rod of a screw rod, a driving gear, an electromotor, a second piston, a first piston, a simulator cylinder body, a baffle, a limit switch and a back cover, wherein the back cover and the simulator cylinder body are mounted on the left side and the right side of the baffle respectively; the belt tooth internal recycling nut is mounted on the back cover and the baffle through the adoption of two thrust bearings; the left end of the push rod of the screw rod is mounted into a hole of the belt tooth internal recycling nut, and is in rolling connection with the hole; the right end of the push rod of the screw rod is inserted into the second piston inside the simulator cylinder body; the first piston is mounted on the right side of the second piston; the electromotor is mounted at the lower part of the simulator cylinder body, and is fixedly connected with the driving gear; a motor controller is mounted on the electromotor; and the limit switch is mounted on the back cover, and is in wire connection with the motor controller.
Description
Technical field
The utility model relates to a kind of analog machine that is applied to the brake system of car field, and or rather, the utility model relates to a kind of active brake-pedal travel simulator.
Background technology
The target that new-energy automobile to reduce energy resource consumption in order reaching, to promote continual mileage has all been introduced regeneration brake system.At present, in order to obtain good deceleration and stopping performance and to satisfy the requirement of relevant laws and regulations, the mode that existing regeneration brake system all adopts conventional hydraulic (or air pressure) braking to combine with the motor regenerative brake.
In order to promote the energy recovery rate of regeneration brake system, need reasonably distribute and adjust motor braking power and hydraulic pressure (or air pressure) braking force, in the conventional hydraulic brake system, add simultaneously the pedal stroke analog functuion, in order to when motor is braked, allow the brake pedal of regeneration brake system that pedal sense near the traditional braking pedal is still arranged.At this problem, external manufacturer and research institution all solve by hydraulic brake system is redesigned completely usually, Chinese patent publication No. as Magna Powertrain AG ﹠ Co. KG is CN101927758A, date of publication is on December 29th, 2010, and denomination of invention is " brake pedal simulator and brake system "; The Chinese patent publication No. of Toyota Motor Corporation rep. is CN102066167A, and date of publication is on May 18th, 2011, and denomination of invention is " stroke simulator and arrester control device "; The Chinese patent publication No. of Robert 〃 Bosch Co., Ltd is CN102256842A, date of publication is on November 23rd, 2011, denomination of invention is CN102582595A for the Chinese patent publication No. of " brake servo unit is as pedal simulator work with through the brake servo unit of respective design " and Ipgate AG, date of publication is on July 18th, 2012, and denomination of invention is " stroke analog machine ".
For domestic automobile vendor, because the parts resource is relative with technology deficient, redesigns hydraulic brake system fully and will face the problem that difficulty is big, the cycle is long, cost is high, be unfavorable for market competition.At present, the domestic Chinese patent that has only Zhejiang Yatai Mechanical ﹠ Electrical Co. Ltd. announces that (announcements) number is CN101879891A, announce that (announcements) day is on November 10th, 2010, Chinese patent application number is CN201010214778.4, and denomination of invention is " simulator for feeling automobile brake pedal "; Chinese patent announces that (announcement) number is CN102294997A, announce that (announcement) day is on December 28th, 2011, Chinese patent application number is CN201110160378.4, and denomination of invention is " simulator for feeling automobile brake pedal ", has proposed two improvement projects based on existing hydraulic brake system.These two schemes have exceeded the ability of existing product to the performance requriements of hydraulic efficiency governing unit when realizing that pressure is adjusted, still abundant inadequately to the utilization of existing parts resource.
Therefore, be necessary to develop a device, can under the prerequisite that need not significantly change former hydraulic brake system, realize that pressure is regulated and the function of pedal sense simulation, in order to cooperate motor to carry out regenerative brake.Like this, can satisfy regeneration brake system for the functional requirement of conventional hydraulic brake system on the one hand, also can reduce research and development and productive costs simultaneously, shorten the R﹠D cycle.
Summary of the invention
Technical problem to be solved in the utility model is to have overcome prior art to have the ability that the performance requriements of hydraulic efficiency governing unit has been exceeded existing product, to the utilization of existing parts resource problem fully inadequately still, provide a kind of active brake-pedal travel simulator.
For solving the problems of the technologies described above, the utility model is to adopt following technical scheme to realize: described active brake-pedal travel simulator comprises circulation nut, first thrust baring, limit switch, screw mandrel push rod, driving gear, electrical motor, electric machine controller, second piston spring, second piston, first piston spring, first piston, simulator cylinder body, second thrust baring, dividing plate and bonnet in the band tooth.
It is that rivet connects that bonnet is installed on the left side of dividing plate, it is that bolt connects that the simulator cylinder body is installed on the right side of dividing plate, the circulation nut adopts first thrust baring and second thrust baring to be installed between bonnet and the dividing plate in the band tooth, the left end of screw mandrel push rod is packed into and is connected for rolling in the centre hole of circulation nut in the band tooth, the right-hand member of screw mandrel push rod inserts in the stepped hole of simulator cylinder body, the right-hand member of screw mandrel push rod is set with second piston, be set with second piston spring on second piston, in the stepped hole of the simulator cylinder body on the second piston right side first piston is installed, the first piston spring housing is contained on the first piston, motor mounting is on the right side of simulator cylinder body underlay screen, it is that interference fit connects that driving gear is sleeved on the output shaft of electrical motor, the circulation nut is for being connected with a joggle in driving gear and the band tooth, electric machine controller is installed on the right side of motor field frame, electrical motor is connected with the electric machine controller electric wire, limit switch is installed in the center of bonnet, and limit switch adopts the limit switch signal line to be connected with electric machine controller.
The left end of the screw mandrel push rod described in the technical scheme is packed in the band tooth in the centre hole of circulation nut to connect for rolling and being referred to: the ball of packing in the raceway in the band tooth on the circulation nut central through hole and the raceway on the screw mandrel in the screw mandrel push rod.
The circulation nut is the disc-like framing member in the band tooth described in the technical scheme, the external cylindrical surface of circulation nut is provided with the tooth that is meshed with driving gear in the band tooth, the center of circulation nut is provided with central through hole in the band tooth, and the inner cylinder face of central through hole is provided with the raceway that ball is installed.Described screw mandrel push rod by about two sections form, left side section namely and the screw mandrel of the band spiral rolling track that the circulation nut cooperates in the band tooth, right section is the ganoid slide bar of the quadrangular bodily form of square sectional.
The circulation nut adopts first thrust baring and second thrust baring to be installed between bonnet and the dividing plate to refer in the band tooth described in the technical scheme: circulation nut left side contacts with the right side of first thrust baring and is connected in the band tooth, circulation nut right side is connected with the left side contact of second thrust baring in the band tooth, the left end of first thrust baring is installed in the round ring boss of bonnet inboard and connects for contact, the interior contact of round ring boss that the right-hand member of second thrust baring is installed on the dividing plate left side connects, and the left end of second thrust baring is sleeved on to contact on the boss of being with circulation nut center in the tooth and connects.
First piston described in the technical scheme and second piston are packed into successively and are sliding block joint in first piston hole on the simulator cylinder body and second piston hole, the first piston seal ring is installed in first seal groove on the first piston, the first piston spring housing is contained in and is free-running fit on the first piston bar of first piston left end, the left annular end face contact of the first piston head of the right side of first piston spring and first piston is connected, the left side of first piston spring is connected with the right side contact of second piston, second piston packing ring is installed in second seal groove on second piston, second piston spring is sleeved on and is free-running fit on second piston rod of the second piston left end, the left annular end face contact of second piston head of the right side of second piston spring and second piston is connected, and the left side of second piston spring is connected with the contact of the right side of dividing plate.
Simulator cylinder body described in the technical scheme is the cylinder class formation spare of left end opening right-hand member sealing, and the external cylindrical surface of simulator cylinder body nozzle is provided with for the flange of installing, and is furnished with bolt hole on the flange equably; The axis of simulator cylinder body is provided with stepped hole, right section is for installing the first piston hole of first piston and first piston spring, left side section is for installing second piston hole of second piston and second piston spring, second piston hole is connected with the first piston hole, the rotation axis conllinear in second piston hole and first piston hole; The cylindrical wall of simulator cylinder body is provided with the air extractor vent of outside ventilation with for the turnover oilhole that passes in and out braking liquid.
The rotation axis conllinear of circulation nut, first thrust baring, screw mandrel push rod, second thrust baring, second piston, first piston and simulator cylinder body in the band tooth described in the technical scheme; The rotation axis conllinear of the rotation axis of motor output shaft and driving gear; Circulation nut, first thrust baring, screw mandrel push rod, second thrust baring, second piston, first piston are parallel with the rotation axis of simulator cylinder body in the rotation axis of motor output shaft and the band tooth.
Compared with prior art the beneficial effects of the utility model are:
1. active brake-pedal travel simulator integrated level height described in the utility model, the function of self is complete relatively, and interface is simple, can be integrated in easily in the middle of the existing hydraulic brake system.Automobile vendor only needs brake piping is changed, and adds a small amount of electromagnetic valve, it can be inserted among traditional hydraulic brake system.
2. active brake-pedal travel simulator described in the utility model is integrated function of increasing pressure and pedal sense analog functuion, can allow automobile vendor increase these two kinds of functions on existing conventional hydraulic brake system basis, increase alerting ability and accuracy rate that hydraulic brake system is regulated.
3. active brake-pedal travel simulator described in the utility model adopts the elastic element of two kinds of different-stiffness to simulate pedal sense, make that simulation treadle effort curve and traditional treadle effort curve are more approaching, thereby can make pedal sense more press close to the conventional hydraulic brake system.
4. active brake-pedal travel simulator described in the utility model can be installed in the brake system of hybrid vehicle and electronlmobil, regulate by accurate brake-pressure, can allow hydraulic braking and motor braking better fit, farthest bring into play the ability of motor regenerative brake, significantly promote the economy of hybrid vehicle and electronlmobil.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described:
Fig. 1 is the front view of active brake-pedal travel simulator described in the utility model;
Fig. 2 is the right elevation of active brake-pedal travel simulator described in the utility model;
Fig. 3 is the axonometric projection graph that the screw mandrel push rod structure that adopts in the active brake-pedal travel simulator described in the utility model is formed;
Fig. 4 is the FB(flow block) of the control method of active brake-pedal travel simulator described in the utility model;
Fig. 5 is the treadle effort performance diagram of active brake-pedal travel simulator described in the utility model;
Among the figure: 1. be with circulation nut, 2. first thrust baring, 3. limit switch in the tooth, 4. screw mandrel push rod, 5. driving gear, 6. limit switch signal line, 7. the first electrical motor bolt of rear end plate, 8. electrical motor, 9. electric machine controller, 10. second piston spring, 11. second pistons, 12. second piston packing rings, 13. the first piston spring, 14. first pistons, 15. first piston seal rings, 16. turnover oilhole, 17. the simulator cylinder body, 18. air extractor vents, 19. second partition tie bolts, 20. second thrust baring, 21. dividing plate, 22. the 4th bonnets connect rivet, 23. bonnets, 24. ball, 25. the second electrical motor bolt of rear end plate, 26. the 7th bonnets connect rivet, 27. the 3rd dividing plate tie bolts, 28. the 6th bonnet connects rivet, 29. the 5th bonnet connects rivet, 30. the 3rd bonnets connect rivet, and 31. second bonnets connect rivet, 32. first bonnet connects rivet, 33. first dividing plate tie bolts.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is explained in detail:
Consult Fig. 1 and Fig. 2, active brake-pedal travel simulator described in the utility model comprises circulation nut 1 in the band tooth, first thrust baring 2, limit switch 3, screw mandrel push rod 4, driving gear 5, limit switch signal line 6, the first electrical motor bolt of rear end plate 7, electrical motor 8, electric machine controller 9, second piston spring 10, second piston 11, second piston packing ring 12, first piston spring 13, first piston 14, first piston seal ring 15, simulator cylinder body 17, second partition tie bolt 19, second thrust baring 20, dividing plate 21, the 4th bonnet connects rivet 22, bonnet 23, ball 24, the second electrical motor bolt of rear end plate 25, the 7th bonnet connects rivet 26, the 3rd dividing plate tie bolt 27, the 6th bonnet connects rivet 28, the 5th bonnet connects rivet 29, the 3rd bonnet connects rivet 30, second bonnet connects rivet 31, first bonnet connects rivet 32 and the first dividing plate tie bolt 33.
Described simulator cylinder body 17 is cylinder class formation spare, its left end opening, and the right-hand member sealing, the external cylindrical surface of nozzle is provided with for the flange of installing, and is evenly equipped with bolt hole on the flange; The axis of simulator cylinder body 17 is provided with stepped hole, right section is the first piston hole of installation first piston 14 with the minor diameter of first piston spring 13, left side section is for installing large diameter second piston hole of second piston 11 and second piston spring 10, second piston hole is connected with the first piston hole, the rotation axis conllinear in second piston hole and first piston hole; Also have air extractor vent 18 and turnover oilhole 12 on the cylindrical wall of simulator cylinder body 17, be respectively applied to and outside ventilation and turnover braking liquid.
Circulation nut 1 is the disc-like framing member in the described band tooth, the external cylindrical surface of circulation nut 1 periphery is provided with the tooth that is meshed with driving gear 5 in the band tooth, the center of circulation nut 1 is provided with central through hole in the band tooth, and the inner cylinder face of central through hole is provided with the raceway that ball 24 is installed
Consult figure, 3, described screw mandrel push rod 4 is formed by two sections, and left side section is namely and the screw mandrel that is provided with spiral rolling track that the central through hole of circulation nut 1 cooperates with ball 24 in the band tooth; Another section i.e. right section is the ganoid slide bar of the quadrangular bodily form of square sectional.
First piston 14 and second piston 11 are packed into successively and are sliding block joint in the first piston hole of simulator cylinder body 17 and second piston hole, and first piston seal ring 15 is installed in first seal groove of the annular on the first piston 14.First piston spring 13 is sleeved on and is free-running fit on the first piston bar of first piston 14 left ends, the left annular end face contact of the first piston head of the right side of first piston spring 13 and first piston 14 is connected, and the other end is that the left side of first piston spring 13 is connected with the right side contact of second piston 11.Second piston packing ring 12 is installed in second seal groove of the annular on second piston 11.Second piston spring 10 is sleeved on and is free-running fit on second piston rod of second piston, 11 left ends, the left annular end face contact of second piston head of the right side of second piston spring 10 and second piston 11 is connected, and the other end i.e. left side of second piston spring 10 is connected with the right side contact that is supported on dividing plate 21.The predetermincd tension of second piston spring 10 is greater than the predetermincd tension of first piston spring 13.Electrical motor 8 is fixed on dividing plate 21 right sides by the first electrical motor bolt of rear end plate 7 and the second electrical motor bolt of rear end plate 25.Electric machine controller 9 is installed on the right side of electrical motor 8 shells, the terminals of electrical motor 8 are connected on drive output of electric machine controller 9, electric machine controller 9 is connected with the regeneration brake system controller, receives the instruction that the regeneration brake system controller sends.The rotating shaft of electrical motor 8 is connected with driving gear 5 by interference fit, driving gear 5 is connected with a joggle with being with the tooth on interior circulation nut 1 outer circumference surface of tooth, circulation nut 1 is sleeved on the screw mandrel of screw mandrel push rod 4 left ends in the band tooth, circulation nut 1 adopts first thrust baring 2 and second thrust baring 20 to be installed between bonnet 23 and the dividing plate 21 in the band tooth, realize axial location, exactly, circulation nut 1 left side is connected with the right side contact of first thrust baring 2 in the band tooth, circulation nut 1 right side is connected with the left side contact of second thrust baring 20 in the band tooth, the left end of first thrust baring 2 is installed in that (namely the right side of the bonnet 23 in the round ring boss of the left side of first thrust baring 2 and bonnet 23 inboards contacts and is connected for contact connects in the round ring boss of (right side) sides in the bonnet 23, contact is connected the external cylindrical surface of first thrust baring, 2 left ends with the inner cylinder face of the round ring boss of bonnet 23 inboards), the right-hand member of second thrust baring 20 is installed in the round ring boss on dividing plate 21 left sides that (namely the left side of the dividing plate 21 in the round ring boss on the right side of second thrust baring 20 and dividing plate 21 left sides contacts and is connected for contact connects, the inner cylinder face contact of the round ring boss on the external cylindrical surface of second thrust baring, 20 right-hand members and the dividing plate 21 is connected), simultaneously, the left end of second thrust baring 20 is sleeved on the boss of being with circulation nut 1 center in the tooth and connects for contact.Thrust baring can adopt 50000 type thrust ball bearings (standard GB/T301) or 80000 type thrust roller bearings (standard GT/T4663).Between the screw mandrel in the band tooth in circulation nut 1 and the screw mandrel push rod 4 ball 24 is housed, drives screw mandrel push rod 4 by ball 24, ball can circulate by the circulation raceway (not drawing on the figure) in the circulation nut 1 in the band tooth.Slide bar partly passes square hole on the dividing plate 21 and the circular hole on second piston 11, and with the both certain clearance is arranged.Screw mandrel push rod 4 can touch first piston 14 when supercharging, but can not touch dividing plate 21.When screw mandrel push rod 4 is got back to initial position, can not interfere with the motion of first piston 14.Wherein: the rotation axis conllinear of circulation nut 1, first thrust baring 2, screw mandrel push rod 4, second thrust baring 20, second piston 11, first piston 14 and simulator cylinder body 17 in the band tooth; The rotation axis of electrical motor 8 output shafts and the rotation axis conllinear of driving gear 5; Circulation nut 1 in the rotation axis of electrical motor 8 output shafts and the rotation axis of driving gear 5 and the band tooth, first thrust baring 2, screw mandrel push rod 4, second thrust baring 20, second piston 11, first piston 14 are parallel with the rotation axis of simulator cylinder body 17.A limit switch 3 is installed in center at bonnet 23, and limit switch 3 adopts limit switch signal line 6 to be connected with electric machine controller 9, and namely limit switch 3 transfers to electric machine controller 9 by limit switch signal line 6 with signal.This switch is a little stroke micro-switch, is used for affirmation screw mandrel push rod 4 and has got back to initial position, when screw mandrel push rod 4 is got back to initial position, can contact with limit switch 3, and make switch produce corresponding signal.The right side contact of the left side of simulator cylinder body 17 and dividing plate 21 is connected, and three bolts of employing are connected between simulator cylinder body 17 and the dividing plate 21, are respectively the first dividing plate tie bolt 33, second partition tie bolt 19 and the 3rd dividing plate tie bolt 27.The right side of bonnet 23 is connected with the left side contact of dividing plate 21, adopting seven rivets to be connected between bonnet 23 and the dividing plate 21, is respectively that first bonnet connects rivet 32, second bonnet and connects rivet 31, the 3rd bonnet and connect rivet 30, the 4th bonnet and connect that rivet 22, the 5th bonnet connect rivet 29, the 6th bonnet connects rivet 28 and is connected rivet 26 with the 7th bonnet.
Four kinds of mode of operations of active brake-pedal travel simulator:
Active brake-pedal travel simulator described in the utility model has four kinds of mode of operations, under the different mode of operations, the flow path difference of braking liquid in pipeline, the switching of pipeline need be finished by the electromagnetic valve of outside, and active brake-pedal travel simulator described in the utility model itself is the intergration model handoff functionality not.
1. idle pulley
When active brake-pedal travel simulator described in the utility model is operated in idle pulley (namely braking), screw mandrel push rod 4 can be depressed limit switch 3, screw mandrel push rod 4 is in initial position at this moment, electrical motor 8 is not worked, and braking liquid can not flow in the active brake-pedal travel simulator, and second piston spring 10 all is in initial condition with first piston spring 13.
2. brake-pedal travel simulation model
Consult Fig. 5, when active brake-pedal travel simulator described in the utility model was operated in the brake-pedal travel simulation model, screw mandrel push rod 4 can be depressed limit switch 3, and screw mandrel push rod 4 is in initial position at this moment, can not interfere with first piston 14.When brake-pipe pressure raise, braking liquid flowed into from turnover oilhole 12, and pressure acts on the first piston 14.When the power on acting on first piston 14 equaled the predetermincd tension of the first bullet piston spring 13, first piston spring 13 began compression, and this is the simulation process of first section pedal sense.When 14 power equaled the predetermincd tension of second piston spring 10 on acting on first piston, second piston spring 10 began compression, and this is second section pedal sense simulation process.As shown in the figure, the process of two sections pedal simulations combines, and just can simulate the pedal sense near true brake pedal.When second piston spring 10 compressed with first piston spring 13, the air in the simulator cylinder body 17 were discharged by air extractor vent 18, so that second piston 11 can free motion with first piston 14.When line pressure is withdrawn from, second piston spring 10 and first piston spring 13 returns, braking liquid flows back to pipeline from turnover oilhole 12.
3. boost mode
When active brake-pedal travel simulator described in the utility model was operated in boost mode, electrical motor 8 drove driving gear 5 and rotates, and driving gear 5 drives circulation nut 1 rotation in the tooth again.The axial motion of circulation nut 1 is limited by first thrust baring 2 and second thrust baring 20 in the band tooth, so can only rotate around axis.When circulation nut 1 rotated in the band tooth, the ball 24 in its internal raceways can drive 4 motions of screw mandrel push rod.Screw mandrel push rod 4 retrains because slide bar partly is subjected to the square hole on the dividing plate 21, can't rotate, and can only carry out straight reciprocating motion.Move to when contacting with first piston 14 at screw mandrel push rod 4, pressurization begins.Along with screw mandrel push rod 4 continues to promote first piston 14, pressurization continues to carry out.
4. pressure reducing mode
When active brake-pedal travel simulator described in the utility model is operated in pressure reducing mode, the power supply of electrical motor 8 is cut off, and the coil electrode of electrical motor 8 is by unsettled, high hydraulic brake fluid will promote first piston 14 and screw mandrel push rod 4 to left movement, and the power and the resistance that act on the first piston 14 until braking liquid balance each other.
Consult Fig. 4, active brake-pedal travel simulator described in the utility model need come work according to the instruction of regeneration brake system controller as parts of brake system.Active brake-pedal travel simulator described in the utility model adopts closed loop control method to control, and concrete steps are as follows:
1. the mode of operation instruction to the input of regeneration brake system controller detects: one has 4 kinds of mode of operations: 1) idle condition is namely braked; 2) pedal stroke emulation mode; 3) pressurized state; 4) decompression state.
2. the position of screw mandrel push rod 4 is confirmed, judged by the state of detectability bit switch 3 whether screw mandrel push rod 4 is in initial position.
3. determine the action of electrical motor according to mode of operation:
1) if active brake-pedal travel simulator is in idle condition, when namely braking, how to decide driving motor 8 according to screw mandrel push rod 4 residing positions, if screw mandrel push rod 4 is not in initial position, then driving motor 8 makes it move to initial position; If screw mandrel push rod 4 is return, then electrical motor 8 is motionless.
2) if active brake-pedal travel simulator is in the pedal stroke emulation mode, how to decide driving motor 8 according to screw mandrel push rod 4 residing positions, if screw mandrel push rod 4 is not in initial position, then driving motor 8 makes it move to initial position; If screw mandrel push rod 4 has been in initial position, then electrical motor 8 is motionless.
3) if active brake-pedal travel simulator is in pressurized state, then driving motor 8 drives screw mandrel push rod 4 to the direction operation that promotes first piston 14.
4) if active brake-pedal travel simulator is in decompression state, then electrical motor 8 will disconnect with power supply, and electrode keeps unsettled.Return step 1.
Claims (7)
1. active brake-pedal travel simulator, it is characterized in that described active brake-pedal travel simulator comprises circulation nut (1), first thrust baring (2), limit switch (3), screw mandrel push rod (4), driving gear (5), electrical motor (8), electric machine controller (9), second piston spring (10), second piston (11), first piston spring (13), first piston (14), simulator cylinder body (17), second thrust baring (20), dividing plate (21) and bonnet (23) in the band tooth;
It is that rivet connects that bonnet (23) is installed on the left side of dividing plate (21), it is that bolt connects that simulator cylinder body (17) is installed on the right side of dividing plate (21), circulation nut (1) adopts first thrust baring (2) and second thrust baring (20) to be installed between bonnet (23) and the dividing plate (21) in the band tooth, the left end of screw mandrel push rod (4) is packed into and is connected for rolling in the centre hole of circulation nut (1) in the band tooth, the right-hand member of screw mandrel push rod (4) inserts in the stepped hole of simulator cylinder body (17), the right-hand member of screw mandrel push rod (4) is set with second piston (11), be set with second piston spring (10) on second piston (11), in the stepped hole of the simulator cylinder body (17) on second piston (11) right side first piston (14) is installed, first piston spring (13) is sleeved on the first piston (14), electrical motor (8) is installed on the right side of simulator cylinder body (17) underlay screen (21), it is that interference fit connects that driving gear (5) is sleeved on the output shaft of electrical motor (8), circulation nut (1) is for being connected with a joggle in driving gear (5) and the band tooth, electric machine controller (9) is installed on the right side of electrical motor (8) housing, electrical motor (8) is connected with electric machine controller (9) electric wire, limit switch (3) is installed in the center of bonnet (23), and limit switch (3) adopts limit switch signal line (6) to be connected with electric machine controller (9).
2. according to the described active brake-pedal travel simulator of claim 1, it is characterized in that the left end of described screw mandrel push rod (4) is packed in the band tooth in the centre hole of circulation nut (1) to connect for rolling and being referred to:
The ball (24) of packing in raceway in the band tooth on circulation nut (1) central through hole and the raceway on the screw mandrel in the screw mandrel push rod (4).
3. according to the described active brake-pedal travel simulator of claim 1, it is characterized in that, circulation nut (1) is the disc-like framing member in the described band tooth, the external cylindrical surface of circulation nut (1) is provided with the tooth that is meshed with driving gear (5) in the band tooth, the center of circulation nut (1) is provided with central through hole in the band tooth, and the inner cylinder face of central through hole is provided with the raceway that ball (24) is installed;
Described screw mandrel push rod (4) by about two sections form, left side section namely and the screw mandrel of the band spiral rolling track that circulation nut (1) cooperates in the band tooth, right section is the ganoid slide bar of the quadrangular bodily form of square sectional.
4. according to the described active brake-pedal travel simulator of claim 1, it is characterized in that circulation nut (1) employing first thrust baring (2) and second thrust baring (20) are installed between bonnet (23) and the dividing plate (21) and refer in the described band tooth:
Circulation nut (1) left side is connected with the right side contact of first thrust baring (2) in the band tooth, circulation nut (1) right side is connected with the left side contact of second thrust baring (20) in the band tooth, the left end of first thrust baring (2) is installed in the inboard round ring boss of bonnet (23) and connects for contact, the interior contact of round ring boss that the right-hand member of second thrust baring (20) is installed on dividing plate (21) left side connects, and the left end of second thrust baring (20) is sleeved on to contact on the boss of being with circulation nut (1) center in the tooth and connects.
5. according to the described active brake-pedal travel simulator of claim 1, it is characterized in that, it is sliding block joint that described first piston (14) and second piston (11) are packed in first piston hole and second piston hole on the simulator cylinder body (17) successively, first piston seal ring (15) is installed in first seal groove on the first piston (14), first piston spring (13) is sleeved on and is free-running fit on the first piston bar of first piston (14) left end, the left annular end face contact of the first piston head of the right side of first piston spring (13) and first piston (14) is connected, the left side of first piston spring (13) is connected with the right side contact of second piston (11), second piston packing ring (12) is installed in second seal groove on second piston (11), second piston spring (10) is sleeved on and is free-running fit on second piston rod of second piston (11) left end, the left annular end face contact of second piston head of the right side of second piston spring (10) and second piston (11) is connected, and the left side of second piston spring (10) is connected with the right side contact of dividing plate (21).
6. according to the described active brake-pedal travel simulator of claim 1, it is characterized in that, described simulator cylinder body (17) is the cylinder class formation spare of left end opening right-hand member sealing, the external cylindrical surface of simulator cylinder body (17) nozzle is provided with for the flange of installing, and is furnished with bolt hole on the flange equably; The axis of simulator cylinder body (17) is provided with stepped hole, right section is for installing the first piston hole of first piston (14) and first piston spring (13), left side section is for installing second piston hole of second piston (11) and second piston spring (10), second piston hole is connected with the first piston hole, the rotation axis conllinear in second piston hole and first piston hole; The cylindrical wall of simulator cylinder body (17) is provided with the air extractor vent (18) of outside ventilation with for the turnover oilhole (16) that passes in and out braking liquid.
7. according to the described active brake-pedal travel simulator of claim 1, it is characterized in that the rotation axis conllinear of circulation nut (1), first thrust baring (2), screw mandrel push rod (4), second thrust baring (20), second piston (11), first piston (14) and simulator cylinder body (17) in the described band tooth; The rotation axis of electrical motor (8) output shaft and the rotation axis conllinear of driving gear (5); Circulation nut (1), first thrust baring (2), screw mandrel push rod (4), second thrust baring (20), second piston (11), first piston (14) are parallel with the rotation axis of simulator cylinder body (17) in the rotation axis of electrical motor (8) output shaft and the band tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320125769 CN203126814U (en) | 2013-03-19 | 2013-03-19 | Active journey simulator for brake pedal |
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| CN 201320125769 CN203126814U (en) | 2013-03-19 | 2013-03-19 | Active journey simulator for brake pedal |
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| CN203126814U true CN203126814U (en) | 2013-08-14 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103171531A (en) * | 2013-03-19 | 2013-06-26 | 吉林大学 | Active brake pedal travel simulator and control method thereof |
| CN108501913A (en) * | 2018-05-24 | 2018-09-07 | 吉林大学 | A kind of brake pedal travel simulator |
| CN109204282A (en) * | 2018-10-15 | 2019-01-15 | 瑞立集团瑞安汽车零部件有限公司 | A kind of motor-driven brake actuator and its braking method |
| US10353422B2 (en) | 2015-06-23 | 2019-07-16 | Kongsberg Power Products Systems I, Inc. | Bidirectional pedal assembly |
| CN110027522A (en) * | 2018-01-12 | 2019-07-19 | 比亚迪股份有限公司 | Pedal simulator, line control brake system and vehicle |
| CN113677574A (en) * | 2019-04-01 | 2021-11-19 | 罗伯特·博世有限公司 | Actuating device for a brake system |
| CN114954380A (en) * | 2022-05-23 | 2022-08-30 | 燕山大学 | Line control brake pedal feeling simulator with variable feeling |
-
2013
- 2013-03-19 CN CN 201320125769 patent/CN203126814U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103171531A (en) * | 2013-03-19 | 2013-06-26 | 吉林大学 | Active brake pedal travel simulator and control method thereof |
| CN103171531B (en) * | 2013-03-19 | 2015-07-15 | 吉林大学 | Active brake pedal travel simulator and control method thereof |
| US10353422B2 (en) | 2015-06-23 | 2019-07-16 | Kongsberg Power Products Systems I, Inc. | Bidirectional pedal assembly |
| CN110027522A (en) * | 2018-01-12 | 2019-07-19 | 比亚迪股份有限公司 | Pedal simulator, line control brake system and vehicle |
| CN108501913A (en) * | 2018-05-24 | 2018-09-07 | 吉林大学 | A kind of brake pedal travel simulator |
| CN109204282A (en) * | 2018-10-15 | 2019-01-15 | 瑞立集团瑞安汽车零部件有限公司 | A kind of motor-driven brake actuator and its braking method |
| CN113677574A (en) * | 2019-04-01 | 2021-11-19 | 罗伯特·博世有限公司 | Actuating device for a brake system |
| CN113677574B (en) * | 2019-04-01 | 2024-05-24 | 罗伯特·博世有限公司 | Actuating device for a brake system |
| CN114954380A (en) * | 2022-05-23 | 2022-08-30 | 燕山大学 | Line control brake pedal feeling simulator with variable feeling |
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