CN204736845U - Man -machine parallel electric brake booster system - Google Patents
Man -machine parallel electric brake booster system Download PDFInfo
- Publication number
- CN204736845U CN204736845U CN201520265553.XU CN201520265553U CN204736845U CN 204736845 U CN204736845 U CN 204736845U CN 201520265553 U CN201520265553 U CN 201520265553U CN 204736845 U CN204736845 U CN 204736845U
- Authority
- CN
- China
- Prior art keywords
- push rod
- power
- assisted
- brake
- man
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Landscapes
- Braking Systems And Boosters (AREA)
Abstract
The utility model provides a man -machine parallel electric brake booster system and control method, wherein this system includes: pedal push rod, pedal push rod is driven by brake pedal, the helping hand plunger for bear braking helping hand or pedal push rod thrust, the dress is on the helping hand plunger for detect pedal push rod and helping hand plunger relative displacement's displacement sensor, link firmly with the helping hand plunger for drive the piston push rod of first braking piston, the connection is in piston push rod's one end for the helping hand motor of helping hand is increased or reduced, first braking piston, first braking hinge joint accomodates in brake master cylinder at piston push rod's the other end, first braking piston, testing result control helping hand motor according to displacement sensor to it carries out the controller brakied to change the brake master cylinder internal pressure. According to the utility model discloses a testing result control helping hand motor that the system passes through displacement sensor has the response soon, advantages such as simple structure in order to change brake master cylinder pressure.
Description
Technical field
The utility model relates to automobile technical field, particularly a kind of man-machine parallel electric braking booster system and control method thereof.
Background technology
Brake servo unit is to alleviate driver pedal strength, makes the device of braking procedure fast power-saving more.The brake servo unit of current widespread use is vacuum booster, and the brake boost that vacuum booster produces is, by physical construction, the braking intention of chaufeur is converted into vacuum brake power-assisted.
The vacuum source of vacuum booster is generally come from air intake manifold of automotive engine, if be applied to hybrid power or electronlmobil, because vacuum source is not enough, then needs to be equipped with a vacuum pump again.If be not equipped with vacuum pump, can also directly utilize electricity to carry out brake boost.What current Bosch, daily output adopted is utilize assist motor to carry out the scheme of power-assisted, and it is mainly with motor reinforcement, utilizes pedal push rod absolute displacement (or simulating chamber pressure) to carry out analytical calculation thus controls assist motor.But this mode complex structure, and require higher for control system.
Utility model content
The purpose of this utility model is intended at least solve one of above-mentioned technological deficiency.
For this reason, the utility model provides a kind of man-machine parallel electric braking booster system.This man-machine parallel electric braking booster system can solve complex structure in conventional art, controls loaded down with trivial details response time slow or need to arrange separately the technical matters of vacuum pump.
In view of this, embodiment of the present utility model proposes a kind of man-machine parallel electric braking booster system, and this man-machine parallel electric braking booster system comprises: pedal push rod, and described pedal push rod is driven by brake pedal; Power-assisted plunger, for bearing brake boost or pedal push rod thrust; Displacement pickup, institute's displacement sensors is arranged on described power-assisted plunger, for detecting described pedal push rod and described power-assisted plunger relative displacement; Piston push rod, described piston push rod and described power-assisted plunger are connected, for driving the first brake piston; Assist motor, described assist motor is connected to one end of described piston push rod, for increasing or reduce power-assisted; First brake piston, described first brake piston is connected to the other end of described piston push rod, and described first brake piston is accommodated in master brake cylinder; Controller, described controller controls described assist motor according to the testing result of institute's displacement sensors, to change described master brake cylinder internal pressure, to control the braking of vehicle.
Control assist motor to change master brake cylinder pressure according to man-machine parallel electric braking booster system of the present utility model by the testing result of displacement pickup, there is response fast, advantages of simple structure and simple.
In embodiment of the present utility model, the relative position of described pedal push rod and described power-assisted plunger comprises: power-assisted section, maintaining segment and return section, when the testing result of institute's displacement sensors be described pedal push rod in described power-assisted section time, described controller controls described assist motor and rotates forward increase power-assisted, to brake described vehicle.
In embodiment of the present utility model, when the testing result of institute's displacement sensors be described pedal push rod in described maintaining segment time, described controller stops operating described assist motor, to keep power-assisted.
In embodiment of the present utility model, when the testing result of institute's displacement sensors be described pedal push rod in described return section time, assist motor described in described controller contrarotation reduces power-assisted, to brake described vehicle.
In embodiment of the present utility model, when described controller adopts regenerative brake to carry out control for brake, described man-machine parallel electric braking booster system also comprises the regulating valve being communicated with described master brake cylinder and adjustment chamber volume, and the unnecessary braking liquid in described master brake cylinder is flow into described adjustment chamber volume by regulating valve described in opening and closing by described controller.
In embodiment of the present utility model, described controller calculates pressure needed for described master brake cylinder according to the stroke of described piston push rod and energy regenerating than in real time, when the pressure in described master brake cylinder is greater than described required pressure, opens described regulating valve and unnecessary brake fluid pressure is flow into described adjustment chamber volume.
In embodiment of the present utility model, described power-assisted plunger and described piston push rod are connected, or adopt spring damping to connect.
In view of this, another embodiment of the present utility model proposes a kind of control method of man-machine parallel electric braking booster system, described man-machine parallel electric braking booster system comprises, pedal push rod, for bearing brake boost or pedal push rod thrust power-assisted plunger, the piston push rod be connected with described power-assisted plunger, for increasing or reduce the assist motor of power-assisted, it is characterized in that, described control method comprises the following steps: detect described pedal push rod and described power-assisted plunger relative position, wherein said relative position comprises: power-assisted section, maintaining segment and return section, described pedal push rod, when described power-assisted section, rotates forward described assist motor to increase power-assisted, to control the braking of vehicle.
Control method according to man-machine parallel electric braking booster system of the present utility model controls assist motor to change master brake cylinder pressure by the testing result of displacement pickup, has response fast, advantages of simple structure and simple.
In embodiment of the present utility model, described method also comprises: described pedal push rod is when described maintaining segment, and stop operating described assist motor, to keep power-assisted; Described pedal push rod is when described return section, and assist motor described in described controller contrarotation reduces power-assisted, to control the braking of vehicle.
In embodiment of the present utility model, when described man-machine parallel electric braking booster system adopts regenerative brake to carry out control for brake, described control method also comprises: calculate pressure needed for master brake cylinder according to the stroke of described piston push rod and energy regenerating than in real time; When the pressure in described master brake cylinder is greater than described required pressure, opens regulating valve and unnecessary brake fluid pressure is flow into adjustment chamber volume.
In embodiment of the present utility model, described controller controls in the process of described assist motor according to institute's displacement sensors, and relative displacement skew initial position is larger, and the speed of power-assisted increase or reduction is larger.Thus, braking can more effectively be controlled.
In embodiment of the present utility model, the mode that described controller controls described assist motor increase power-assisted comprises: the corner controlling described assist motor, or the moment of torsion controlling described assist motor.
The aspect that the utility model is additional and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
The utility model above-mentioned and/or additional aspect and advantage will become obvious and easy understand from the following description of the accompanying drawings of embodiments, wherein,
Fig. 1 is the block diagram of the man-machine parallel electric braking booster system according to the utility model embodiment;
Fig. 2 is the concrete schematic diagram of the man-machine parallel electric braking booster system according to the utility model embodiment;
Fig. 3 is the relative position schematic diagram of pedal push rod according to the utility model embodiment and power-assisted plunger;
Fig. 4 is the schematic diagram of man-machine parallel electric braking booster system when power-assisted section of the utility model embodiment;
Fig. 5 is the man-machine parallel schematic diagram of electric braking booster system when maintaining segment of the utility model embodiment;
Fig. 6 is the schematic diagram of man-machine parallel electric braking booster system when return section of the utility model embodiment; And
Fig. 7 is the diagram of circuit of the control method of man-machine parallel electric braking booster system according to the utility model embodiment.
Detailed description of the invention
Be described below in detail embodiment of the present utility model, the example of embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and can not being interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, particular case the concrete meaning of above-mentioned term in the utility model can be understood.
Fig. 1 is the block diagram of the man-machine parallel electric braking booster system according to the utility model embodiment.As shown in Figure 1, comprise according to the man-machine parallel electric braking booster system of the utility model embodiment: pedal push rod 105, pedal push rod 105 is driven by brake pedal 100.Power-assisted plunger 106, for bearing the thrust of brake boost or pedal push rod 105.Displacement pickup 202, displacement pickup 202 is arranged on power-assisted plunger 106, for detecting pedal push rod 105 and power-assisted plunger 106 relative displacement.Piston push rod 103, piston push rod 103 and power-assisted plunger 106 are connected, for driving the first brake piston 107.Assist motor 201, assist motor 201 is connected to one end of piston push rod 103, for increasing or reduce power-assisted.First brake piston 107, first brake piston 107 is connected to the other end of piston push rod 103, and the first brake piston 107 is accommodated in master brake cylinder 111.Controller 302, controller 302 controls assist motor 201, to change 111 pressure in master brake cylinder, to control the braking of vehicle according to the testing result of displacement pickup 202.
Below by Fig. 2, man-machine parallel electric braking booster system of the present utility model is further described.Fig. 2 is the concrete schematic diagram of the man-machine parallel electric braking booster system according to the utility model embodiment.As shown in Figure 2, man-machine parallel electric braking booster system specifically comprises: leading screw 102 nut 101 mechanism driven by assist motor 201.The pedal push rod 105 driven by brake pedal 100.For bearing the power-assisted plunger 106 of brake boost and pedal push rod thrust.Being contained on power-assisted plunger 106, for measuring the relative displacement transducer 202 of pedal push rod and power-assisted plunger, in power-assisted plunger 202, being provided with relative position pull back spring 402.Be connected with power-assisted plunger, for driving the piston push rod 103 of the first brake piston 107.The second brake piston 110 is provided with in master cylinder.Power-assisted baffle plate 104 and damping spring damping 401 is provided with between leading screw 102 and displacement pickup 202.The adjustment chamber volume 109 controlled by regulating valve 203 is connected with master brake cylinder by regulating valve 203.Controller BCU302 is connected with displacement pickup 202, assist motor 201, regulating valve 203.Master brake cylinder 111 is connected with ABS actuating unit HCU301 and car side brake 204 by braking liquid flexible pipe.Wherein master brake cylinder 111, assist motor, adjustment chamber volume all directly or indirectly and vehicle body 108 be connected.
As shown in Figure 2, power-assisted baffle plate 104 slides on piston push rod 103, the brake boost that assist motor 201 brings directly is born in one end of main force's baffle plate 104, the other end of main force's baffle plate 104 is connected with power-assisted plunger 106 with spring damping 401, motor power-assisted is passed on piston push rod 103 by power-assisted plunger 106.Leading screw 102 and nut 101 constitute reinforcement structure, rotarily drive reinforcement structure by assist motor 201.Other reinforcement structure can also be used, such as turbine and worm etc. except the reinforcement structure be made up of leading screw and nut.
In an embodiment of the present utility model, pedal push rod 105 slides on the axle of power-assisted plunger 106, be arranged on the displacement pickup 202 of power-assisted plunger 106, pedal push rod 105 and power-assisted plunger 106 displacement vertically can be detected, thus directly according to the braking intention of displacement perception chaufeur.In addition, between power-assisted plunger 106 and pedal push rod 105, be provided with pull back spring 402, when after loosen the brake 100, the relative position of power-assisted plunger 106 and pedal push rod 105 can return to initial condition.
In an embodiment of the present utility model, pull back spring 402 is provided with between power-assisted plunger 106 and master brake cylinder 111, after when chaufeur, no longer braking motor reversion power-assisted disappears, power-assisted plunger 106 and piston push rod 103 return to initial position under the effect of pull back spring 402.For generation of power-assisted force-increasing mechanism (i.e. leading screw 102 and nut 101) be not connected between power-assisted baffle plate 104 and can directly separate, therefore, when quitting work, chaufeur directly can drive power-assisted plunger 106 and piston push rod 103 to produce braking force by trampling brake pedal 100.
In an embodiment of the present utility model, the controller 302 controlling brake boost is BCU (booster control union), for controlling assist motor 201 and regulating valve 203 according to the data of ECU signal and displacement pickup 202.Displacement pickup 202 can be integrated between power-assisted plunger 106 and pedal push rod 105 with a kind of form not taking too much space.
Fig. 3 is the relative position schematic diagram of pedal push rod according to the utility model embodiment and power-assisted plunger.As shown in Figure 3, the relative position of pedal push rod 103 and power-assisted plunger 106 comprises: power-assisted section, maintaining segment and return section.As shown in Figure 2,3, when the testing result of displacement pickup 202 be pedal push rod 103 in power-assisted section time, controller 302 controls assist motor and rotates forward increase power-assisted, to brake vehicle.
Fig. 4 is the schematic diagram of man-machine parallel electric braking booster system when power-assisted section of the utility model embodiment.As shown in Figure 4, when chaufeur starts to want braking, brake pedal 100 can be stepped on and drive pedal push rod 105 power-assisted plunger 106 to depart from maintaining segment to enter power-assisted section.Controller BCU302 reads out the data of displacement pickup 202, and controls assist motor 201 and rotate forward and drive force-increasing mechanism to promote power-assisted baffle plate 104 to produce power-assisted.Wherein, the mode that controller 302 controls assist motor 201 can set the rotating speed of power-assisted section to have nothing to do as the size of set value and displacement in advance, also can set different rotating speeds according to the diverse location entering power-assisted section.
Fig. 5 is the man-machine parallel schematic diagram of electric braking booster system when maintaining segment of the utility model embodiment.As shown in Figure 5, when chaufeur to wish in a certain position of pedal stroke to keep now braking force time, the invariant position of brake pedal 100 can be kept.Because before the position of chaufeur maintenance brake pedal 100, assist motor 201 is in rotating forward power-assisted state, piston push rod 103 and power-assisted plunger 106 is then driven to move on, until make the relative displacement of power-assisted plunger 106 and pedal push rod 105 enter maintaining segment, then controller 302 reads the data of displacement pickup 202, control assist motor 201 stall, with retentive control power.Because maintaining segment exists one section of interval, therefore the slight jitter of chaufeur on pedal can not change the state keeping braking force.
When chaufeur is from when keeping the state of braking force to continue to strengthen braking force, steps on brake pedal 100, driven pedal push rod 105 power-assisted plunger 106 to depart from maintaining segment and entered power-assisted section.Controller 302 reads the data of displacement pickup 202, and controls assist motor 201 rotating forward drive force-increasing mechanism promotion power-assisted baffle plate 1047 continuation increase power-assisted.
Fig. 6 is the schematic diagram of man-machine parallel electric braking booster system when return section of the utility model embodiment.As shown in Figure 6, in power-assisted plunger 106 relative position pull back spring 402 effect under, after unclamping pedal, pedal push rod 105 can get back to the rightest section of power-assisted plunger 106, namely makes the return section that assist motor 201 reverses.When chaufeur is from when keeping the state of braking force to want to reduce braking force, the stroke of loosen the brake 100 or reduction brake pedal 100, pedal push rod 105 is return until enter return section.Controller 302 reads the data of displacement pickup 202, and controls assist motor 201 and reverse, at effect lower piston push rod 103 return of overall pull back spring 402.Wherein, the mode that controller 302 controls assist motor 201 can set the rotating speed of return section to have nothing to do as the size of set value and displacement in advance, also can set different rotating speeds according to the diverse location entering return section.
In embodiment of the present utility model, when controller adopts regenerative brake to carry out control for brake, man-machine parallel electric braking booster system also comprises the regulating valve 203 being communicated with master brake cylinder 111 and adjustment chamber volume 109, and the unnecessary braking liquid in master brake cylinder is flow into adjustment chamber volume by opening and closing regulating valve by controller.
Controller 302 calculates pressure needed for master brake cylinder 11 according to the stroke of piston push rod 103 and energy regenerating than in real time, when the pressure in master brake cylinder 111 is greater than required pressure, opens regulating valve 203 and unnecessary brake fluid pressure is flow into adjustment chamber volume 109.Control pressure regulating valve 203 close when the pressure in master brake cylinder 111 is less than required pressure Time Controller 302.
In an embodiment of the present utility model, the adjustment chamber volume 109 controlled by regulating valve 203 is connected on vehicle body, also can be incorporated on master brake cylinder 111.Under usual state, regulating valve 203 is in closed condition, and when adopting regenerative brake, controller 302 controls it and opens, and the first brake piston 107 is driven compression, and braking liquid is pressed into adjustment chamber volume 109, makes braking voltage rise less.If the first brake piston 107 is driven return, then braking liquid is sucked back in master brake cylinder 111 from adjustment chamber volume 109.
Under power down mode, owing to not connecting between force-increasing mechanism and baffle plate, be merely able to transmit squeese pressure, therefore chaufeur directly can be stepped on brake pedal 100 and drives pedal push rod 105 to promote power-assisted plunger 106, thus driving piston push rod 103 to advance, compression brake master cylinder 111 produces braking force.
In addition, when chaufeur has little time push down on the pedal in emergency circumstances, controller 302 directly controls motor and is just transferring generation brake boost, to prevent unexpected generation.
Control assist motor to change master brake cylinder pressure according to system of the present utility model by the testing result of displacement pickup, there is response fast, advantages of simple structure and simple.
Fig. 7 is the diagram of circuit of the control method of man-machine parallel electric braking booster system according to the utility model embodiment.As shown in Figure 7, control method according to the man-machine parallel electric braking booster system of the utility model embodiment comprises the following steps: detect pedal push rod and power-assisted plunger relative position, wherein relative position comprises: power-assisted section, maintaining segment and return section (step 101).Pedal push rod, when power-assisted section, rotates forward assist motor to increase power-assisted, to control (step 102) the braking of vehicle.Pedal push rod is when maintaining segment, and stop operating assist motor, to keep power-assisted (step 103).Pedal push rod is when return section, and controller contrarotation assist motor reduces power-assisted, to control (step 104) the braking of vehicle.
Be specially, step is as follows: 1, first judge whether to carry out regenerative brake, if when not carrying out regenerative brake, then returned, does not namely carry out the control about regulating valve; When judging to enter next step when carrying out regenerative brake.2,2. contrast master brake cylinder pressure and whether be greater than required force value, no, then close regulating valve; Then open regulating valve
Below braking procedure is further described.
In embodiment of the present utility model, when chaufeur starts to want braking, brake pedal 100 can be stepped on and drive pedal push rod 105 power-assisted plunger 106 to depart from maintaining segment to enter power-assisted section.Controller BCU302 reads out the data of displacement pickup 202, and controls assist motor 201 and rotate forward and drive force-increasing mechanism to promote power-assisted baffle plate 104 to produce power-assisted.Wherein, the mode that controller 302 controls assist motor 201 can set the rotating speed of power-assisted section to have nothing to do as the size of set value and displacement in advance, also can set different rotating speeds according to the diverse location entering power-assisted section.
In embodiment of the present utility model, when chaufeur to wish in a certain position of pedal stroke to keep now braking force time, the invariant position of brake pedal 100 can be kept.Because before the position of chaufeur maintenance brake pedal 100, assist motor 201 is in rotating forward power-assisted state, piston push rod 103 and power-assisted plunger 106 is then driven to move on, until make the relative displacement of power-assisted plunger 106 and pedal push rod 105 enter maintaining segment, then controller 302 reads the data of displacement pickup 202, control assist motor 201 stall, with retentive control power.Because maintaining segment exists one section of interval, therefore the slight jitter of chaufeur on pedal can not change the state keeping braking force.If chaufeur, from when keeping the state of braking force to continue to strengthen braking force, is stepped on brake pedal 100, has been driven pedal push rod 105 power-assisted plunger 106 to depart from maintaining segment and entered power-assisted section.Controller 302 reads the data of displacement pickup 202, and controls assist motor 201 rotating forward drive force-increasing mechanism promotion power-assisted baffle plate 1047 continuation increase power-assisted.
In embodiment of the present utility model, in power-assisted plunger 106 relative position pull back spring 402 effect under, after unclamping pedal, pedal push rod 105 can get back to the rightest section of power-assisted plunger 106, namely makes the return section that assist motor 201 reverses.When chaufeur is from when keeping the state of braking force to want to reduce braking force, the stroke of loosen the brake 100 or reduction brake pedal 100, pedal push rod 105 is return until enter return section.Controller 302 reads the data of displacement pickup 202, and controls assist motor 201 and reverse, at effect lower piston push rod 103 return of overall pull back spring 402.Wherein, the mode that controller 302 controls assist motor 201 can set the rotating speed of return section to have nothing to do as the size of set value and displacement in advance, also can set different rotating speeds according to the diverse location entering return section.
The size that can be departed from according to relative displacement by above-mentioned control changes motor speed, thus quickening or the change of reduction braking force make, and the traveling of vehicle is more stable, safety.
In embodiment of the present utility model, the control process of regulating valve is specific as follows: steps A, judges whether to carry out regenerative brake, if when not carrying out regenerative brake, then returned, does not namely carry out the control about regulating valve 203; When judging to carry out regenerative brake, enter step B.Step B, according to the stroke of piston push rod 103 and energy regenerating than calculating pressure needed for master brake cylinder in real time.Step C, whether the pressure compared in master brake cylinder 111 is greater than required force value, if be greater than required force value, then open regulating valve 203 and unnecessary brake fluid pressure is flow into adjustment chamber volume 109, otherwise, close regulating valve 203.
When friction braking combines with electrical motor regenerative brake, under the identical deceleration/decel of automobile, required friction brake force is less.In order to make now, chaufeur is stepping on brake pedal to total braking force during identical travel position with not apply regenerative brake phase difference little, then BCU controls regulating valve and opens, and braking liquid enters adjustment chamber volume, until close when needing brake fluid pressure to raise again.This is too sensitive with regard to making to be unlikely to chaufeur braking feel when applying regenerative brake at the same time.
Under automobile power-down or special case, as above system features, chaufeur can directly make automobile obtain braking force by pedal.When the chaufeur that is in an emergency has little time pedal time, BCU controls assist motor and directly rotates forward drive piston push rod generation braking force.Chaufeur and motor all individual operation brake system can produce braking force, and this is man-machine parallel implication.
According to above-mentioned for description of the present utility model, by the detection of displacement pickup for pedal push rod and power-assisted plunger relative displacement, the simple possible that man-machine parallel electric braking servo-unit described in the utility model is had when normal work servo-actuated with only work characteristics, instead of the servo-actuated work characteristics with stopping of vacuum booster, well having met chaufeur braking characteristics.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment when not departing from principle of the present utility model and aim, revising, replacing and modification in scope of the present utility model.
Claims (9)
1. a man-machine parallel electric braking booster system, is characterized in that, comprising:
Pedal push rod, described pedal push rod is driven by brake pedal;
Power-assisted plunger, for bearing brake boost or pedal push rod thrust;
Displacement pickup, institute's displacement sensors is arranged on described power-assisted plunger, for detecting described pedal push rod and described power-assisted plunger relative displacement;
Piston push rod, described piston push rod and described power-assisted plunger are connected, for driving the first brake piston;
Assist motor, described assist motor is connected to one end of described piston push rod, for increasing or reduce power-assisted;
First brake piston, described first brake piston is connected to the other end of described piston push rod, and described first brake piston is accommodated in master brake cylinder;
Controller, described controller controls described assist motor according to the testing result of institute's displacement sensors, to change described master brake cylinder internal pressure, to control the braking of vehicle.
2. man-machine parallel electric braking booster system as claimed in claim 1, it is characterized in that, the relative position of described pedal push rod and described power-assisted plunger comprises: power-assisted section, maintaining segment and return section, when the testing result of institute's displacement sensors be described pedal push rod in described power-assisted section time, described controller controls described assist motor and rotates forward increase power-assisted, to brake described vehicle.
3. man-machine parallel electric braking booster system as claimed in claim 2, is characterized in that, when the testing result of institute's displacement sensors be described pedal push rod in described maintaining segment time, described controller stops operating described assist motor, to keep power-assisted.
4. man-machine parallel electric braking booster system as claimed in claim 2, it is characterized in that, when the testing result of institute's displacement sensors be described pedal push rod in described return section time, assist motor described in described controller contrarotation reduces power-assisted, to brake described vehicle.
5. man-machine parallel electric braking booster system as claimed in claim 1, it is characterized in that, when described controller adopts regenerative brake to carry out control for brake, described man-machine parallel electric braking booster system also comprises the regulating valve being communicated with described master brake cylinder and adjustment chamber volume
Unnecessary braking liquid in described master brake cylinder is flow into described adjustment chamber volume by regulating valve described in opening and closing by described controller.
6. man-machine parallel electric braking booster system as claimed in claim 5, it is characterized in that, described controller calculates pressure needed for described master brake cylinder according to the stroke of described piston push rod and energy regenerating than in real time, when the pressure in described master brake cylinder is greater than described required pressure, opens described regulating valve and unnecessary brake fluid pressure is flow into described adjustment chamber volume.
7. man-machine parallel electric braking booster system as claimed in claim 5, it is characterized in that, described power-assisted plunger and described piston push rod are connected, or adopt spring damping to connect.
8. man-machine parallel electric braking booster system as claimed in claim 1, it is characterized in that, described controller controls in the process of described assist motor according to institute's displacement sensors, and relative displacement skew initial position is larger, and the speed of power-assisted increase or reduction is larger.
9. man-machine parallel electric braking booster system as claimed in claim 1, is characterized in that, the mode that described controller controls described assist motor increase power-assisted comprises: the corner controlling described assist motor, or the moment of torsion controlling described assist motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520265553.XU CN204736845U (en) | 2015-04-28 | 2015-04-28 | Man -machine parallel electric brake booster system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520265553.XU CN204736845U (en) | 2015-04-28 | 2015-04-28 | Man -machine parallel electric brake booster system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204736845U true CN204736845U (en) | 2015-11-04 |
Family
ID=54418593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520265553.XU Withdrawn - After Issue CN204736845U (en) | 2015-04-28 | 2015-04-28 | Man -machine parallel electric brake booster system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204736845U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104760587A (en) * | 2015-04-28 | 2015-07-08 | 清华大学 | Man-machine parallel electric brake booster system and control method thereof |
| CN113022525A (en) * | 2020-12-23 | 2021-06-25 | 万向钱潮股份有限公司 | Electric brake boosting bidirectional pressure characteristic compensation method |
-
2015
- 2015-04-28 CN CN201520265553.XU patent/CN204736845U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104760587A (en) * | 2015-04-28 | 2015-07-08 | 清华大学 | Man-machine parallel electric brake booster system and control method thereof |
| CN104760587B (en) * | 2015-04-28 | 2017-08-11 | 清华大学 | Man-machine parallel electric braking booster system and its control method |
| CN113022525A (en) * | 2020-12-23 | 2021-06-25 | 万向钱潮股份有限公司 | Electric brake boosting bidirectional pressure characteristic compensation method |
| CN113022525B (en) * | 2020-12-23 | 2022-07-19 | 万向钱潮股份有限公司 | Electric brake boosting bidirectional pressure characteristic compensation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206406908U (en) | A kind of motor driving EHB for improving master cylinder | |
| CN108501921B (en) | A kind of hydraulic line control brake system and its brake control method with double pressure sources | |
| CN103253146B (en) | The pedal decoupling type Electro-hydraulic brake system that integrated pedal displacement is measured | |
| KR100819978B1 (en) | Brake system for hybrid and electric vehicle and control method thereof | |
| CN105799679B (en) | Oil pressure energy assisted braking system and its control method | |
| US9566971B2 (en) | Hydraulic-pressure producing device and hydraulic brake system | |
| CN106891878A (en) | A kind of motor for improving master cylinder drives EHB | |
| CN108162943B (en) | The compound line control brake system and its brake control method of four-wheel pressure independent control | |
| CN105984350B (en) | Brake control method for hybrid electric vehicle | |
| CN103987593B (en) | Brake device and braking control device | |
| CN208897044U (en) | A kind of full decoupled electronic hydraulic brake system | |
| CN109177945A (en) | A kind of full decoupled electronic hydraulic brake system | |
| CN106904079A (en) | A kind of regenerating brake control method of pure electric automobile | |
| CN104417517A (en) | Brake control apparatus | |
| CN208530546U (en) | A kind of vehicle integration electric servo brake system | |
| CN103950443A (en) | Pedal feeding active control type electronic hydraulic braking system | |
| CN204567644U (en) | Can be used for the brake system of intelligent vehicle | |
| CN107891850A (en) | A kind of integrated electric hydraulic brake system with decoupling function | |
| CN110774900A (en) | Fully-decoupled regenerative braking device for hub motor driven automobile and control method | |
| CN109927692A (en) | A kind of vehicle integration electric servo brake system | |
| WO2011116640A1 (en) | Braking force compensating system for hybrid electric vehicle | |
| CN204736845U (en) | Man -machine parallel electric brake booster system | |
| CN106274870A (en) | A kind of electromechanical brake booster system | |
| CN113104014A (en) | Vehicle full-decoupling electro-hydraulic servo brake device and brake method thereof | |
| CN109159776A (en) | A kind of vehicle wheel cylinder hydraulic force control system and method based on dual power source |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151104 Effective date of abandoning: 20170811 |