CN209214907U - A kind of relative displacement measuring device for electric booster braking device - Google Patents
A kind of relative displacement measuring device for electric booster braking device Download PDFInfo
- Publication number
- CN209214907U CN209214907U CN201822108559.2U CN201822108559U CN209214907U CN 209214907 U CN209214907 U CN 209214907U CN 201822108559 U CN201822108559 U CN 201822108559U CN 209214907 U CN209214907 U CN 209214907U
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- China
- Prior art keywords
- electric booster
- sensor
- relative displacement
- push rod
- displacement measuring
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- 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.)
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Abstract
The utility model discloses a kind of relative displacement measuring devices for electric booster braking device, electric booster braking device includes manual braking's component and electrodynamic braking component, manual braking's component includes brake pedal and the push rod that connect with brake pedal, electrodynamic braking component includes lead screw, push rod and lead screw can be moved along same rectilinear direction, and the two opposite can be slided, relative displacement measuring device includes the magnet on sensor on a component being fixed in two components of lead screw and push rod and another component being fixed in two components of lead screw and push rod, sensor can generate electromagnetic induction between magnet, magnet is located in the induction region of sensor.The relative displacement measuring device structure for being used for electric booster braking device is simple, can greatly reduce the structure size of electric booster braking device, reduces the cost of electric booster braking device and makes control program simpler.
Description
Technical field
The utility model relates to automobile brake technical fields, and in particular to a kind of for the opposite of electric booster braking device
Displacement measuring device.
Background technique
Electric booster braking device generally can be under autonomous braking mode, brake-by-wire mode, power brake mode
Work, and have the function of failure backup manual braking, to meet the braking requirement under different operating conditions.In the prior art, electronic
Power-assisted braking arrangement is generally used double displacement sensor structures, and one of displacement sensor tests screw travel, another
Displacement sensor tests pedal travel, and the opposite position of motor and brake pedal is determined by the difference between two strokes of test
Set relationship.Since dibit displacement sensor needs to occupy relatively large space, so that entire electric booster braking device
Structure is accordingly larger, and control program is more complex, at high cost.
Utility model content
The purpose of this utility model is provided a kind of for electric booster braking device for the problems of the prior art
Relative displacement measuring device can reduce the structural volume of electric booster braking device.
In order to achieve the above objectives, the technical solution adopted in the utility model is:
A kind of relative displacement measuring device for electric booster braking device, electric booster braking device includes manpower system
Dynamic component and electrodynamic braking component, manual braking's component include brake pedal and the push rod that connect with the brake pedal,
The electrodynamic braking component includes lead screw, and the push rod and the lead screw can be moved along same rectilinear direction, and the two can
Opposite sliding, the relative displacement measuring device includes one be fixed in two components of the lead screw and the push rod
Magnet on sensor on component and another component being fixed in two components of the lead screw and the push rod, institute
Electromagnetic induction can be generated between the magnet by stating sensor, and the magnet is located in the induction region of the sensor.
Preferably, when manual braking's component and the electrodynamic braking component are failure to actuate, the sensor face
The magnet setting, and gap is provided between the sensor and the magnet.
Further, the gap is 0.4 ~ 0.6mm.
Preferably, the lead screw has the lumen for prolonging the extension of its linear movement direction, and the pusher portion is located at the pipe
Can move in a straight line in chamber and along the length extending direction of the lumen, the inner wall of the outer wall of the push rod and the lumen it
Between have gap.
Further, the sensor is fixed at the one end of the lead screw, and the magnet is fixed at described
On push rod.
Further, groove is set on the push rod, and the magnet is fixed in the groove, and the magnet leans on
One end face of the nearly sensor is not higher than the outer surface of the push rod.
A kind of specific embodiment, the magnet is close to an end face of the sensor and the outer surface phase of the push rod
It flushes.
A kind of specific embodiment, the magnet is by adhesive secure attachment in the groove.
Preferably, the electric booster braking device further includes shell, and the push rod and the lead screw can be slidably
Disposed in the housing, the relative displacement measuring device further includes sensor plug connector, and the sensor plug connector is fixed
Setting on the housing, is connected between the sensor and the sensor plug connector by harness.
Preferably, the electric booster braking device further includes shell and silk on the housing is rotatably arranged
Mother, the screw are matched with the lead screw, and the screw is rotated by motor driven, and the screw drives the silk when rotating
Thick stick moves in a straight line.
Due to the application of the above technical scheme, the utility model has the advantage that this is practical new compared with prior art
The relative displacement measuring device structure for electric booster braking device of type is simple, can greatly reduce electric booster braking device
Structure size, reduce electric booster braking device cost and make control program it is simpler.
Detailed description of the invention
Attached drawing 1 is the structural representation of the relative displacement measuring device for electric booster braking device of the utility model
Figure.
Wherein: 1, shell；2, push rod；3, lead screw；4, screw；5, sensor；6, magnet；7, sensor plug connector；8, line
Beam.
Specific embodiment
The technical solution of the utility model is further elaborated with reference to the accompanying drawing.
As shown in Figure 1, electric booster braking device includes shell 1, manual braking's component and electrodynamic braking component, manpower system
Dynamic component includes brake pedal (not shown) and the push rod connecting with brake pedal 2, electrodynamic braking component include lead screw 3,
The screw 4 and motor (not shown) matched with lead screw 3, screw 4 are rotatably arranged on shell 1, lead screw 3 and push rod 2
It can be slidably arranged in shell 1 along same rectilinear direction, and the two can opposite sliding.Specifically, screw 4 passes through motor
Driving rotation, when screw 4 rotates, driving lead screw 3 moves in a straight line in shell 1.When brake pedal, driving push rod 2
It is moved in a straight line in shell 1.
The relative displacement measuring device for electric booster braking device of the utility model includes sensor 5 and magnet 6,
Sensor 5 is fixed on a component in 3 two components of push rod 2 and lead screw, and magnet 6 is fixed at push rod 2 and silk
On another component in 3 two components of thick stick, sensor 5 can generate electromagnetic induction between magnet 6, and magnet 6 is located at sensing
In the induction region of device 5.Electric booster braking device is under line traffic control mode and assistant mode, when foot steps on brake pedal, makes to push away
Bar 2 moves in a straight line, to generate relative displacement between push rod 2 and lead screw 3, passes through the sense between sensor 5 and magnet 6
It answers, sensor 5 can measure the signal of the relative displacement generated between push rod 2 and lead screw 3 can be real-time after via controller processing
The velocity of rotation for controlling motor finally makes displacement difference between push rod 2 and lead screw 3 always so that lead screw 3 be driven to move in a straight line
It is zero, keeps a balance.
When manual braking's component and electric booster braking component are failure to actuate, i.e., motor is inactive, does not also step on braking
Pedal at this point, 5 face magnet 6 of sensor is arranged, and is provided with gap between sensor 5 and magnet 6.The gap be 0.4 ~
0.6mm, preferred gap are set as 0.5mm.
In the present embodiment, lead screw 3 has the lumen for prolonging the extension of its linear movement direction, and 2 part of push rod is located in lumen simultaneously
It can be moved in a straight line along the length extending direction of lumen, there is gap between the outer wall of push rod 2 and the inner wall of lumen.Sensor
5 are fixed at the one end of lead screw 3, and magnet 6 is fixed on push rod 2.
Specifically, sensor 5 is fixed at the one end of screw rod 3 by screw.Groove is set on push rod 2, and magnet 6 is solid
Fixed to be arranged in the groove, magnet 6 is not higher than the outer surface of push rod 2 close to an end face of sensor 5, in magnet 6 close to sensing
The gap of 0.4 ~ 0.6mm is provided between one end face of device 5 and sensor.It is preferred that magnet 6 close to sensor 5 an end face with push away
The outer surface of bar 2 is flush.
In the present embodiment, magnet 6 is being arranged in 2 upper groove of push rod by the adhesive secure attachment of solid or liquid.
The relative displacement measuring device for electric booster braking device of the utility model further includes sensor plug connector
7, sensor plug connector 7 is fixed on shell 1 by screw, passes through harness 8 between sensor 5 and sensor plug connector 7
Connection.
The utility model only can be obtained brake-pedal travel and screw travel difference between the two with a sensor,
It is tested for brake-pedal travel and screw travel respectively in compared to the prior art using two sensors, electricity can be greatly reduced
The structure size of dynamic power-assisted braking arrangement, so that electric booster braking device spatial margin when installing on automobile is bigger；And
And it can also reduce the manufacturing cost of electric booster braking device significantly；For the control operation program of opposite two sensors, one
The control of a sensor is simpler.
The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and be implemented, do not limit the protection scope of the present invention,
All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover in the protection scope of the utility model
It is interior.
Claims (10)
1. a kind of relative displacement measuring device for electric booster braking device, electric booster braking device includes manual braking
Component and electrodynamic braking component, manual braking's component include brake pedal and the push rod that connect with the brake pedal, institute
Stating electrodynamic braking component includes lead screw, and the push rod and the lead screw can be moved along same rectilinear direction, and the two can phase
To sliding, it is characterised in that: the relative displacement measuring device includes being fixed at two portions of the lead screw and the push rod
Sensor on a component in part and another component being fixed in two components of the lead screw and the push rod
On magnet, the sensor can generate electromagnetic induction between the magnet, and the magnet is located at the sense of the sensor
It answers in region.
2. the relative displacement measuring device according to claim 1 for electric booster braking device, it is characterised in that: when
When manual braking's component and the electrodynamic braking component are failure to actuate, the setting of magnet described in the sensor face, and institute
It states and is provided with gap between sensor and the magnet.
3. the relative displacement measuring device according to claim 2 for electric booster braking device, it is characterised in that: institute
Stating gap is 0.4 ~ 0.6mm.
4. the relative displacement measuring device according to claim 1 for electric booster braking device, it is characterised in that: institute
Stating lead screw has the lumen for prolonging the extension of its linear movement direction, and the pusher portion is located in the lumen and can be along the pipe
The length extending direction of chamber moves in a straight line, and has gap between the outer wall of the push rod and the inner wall of the lumen.
5. the relative displacement measuring device according to claim 4 for electric booster braking device, it is characterised in that: institute
The one end that sensor is fixed at the lead screw is stated, the magnet is fixed on the push rod.
6. the relative displacement measuring device according to claim 5 for electric booster braking device, it is characterised in that: institute
It states and groove is set on push rod, the magnet is fixed in the groove, and the magnet is close to an end face of the sensor
Not higher than the outer surface of the push rod.
7. the relative displacement measuring device according to claim 6 for electric booster braking device, it is characterised in that: institute
Magnet is stated to be flush close to an end face of the sensor and the outer surface of the push rod.
8. the relative displacement measuring device according to claim 6 for electric booster braking device, it is characterised in that: institute
It states magnet and passes through adhesive secure attachment in the groove.
9. the relative displacement measuring device according to claim 1 for electric booster braking device, it is characterised in that: institute
Stating electric booster braking device further includes shell, and the push rod and the lead screw can be slidably arranged in the shell,
The relative displacement measuring device further includes sensor plug connector, and the sensor plug connector is fixedly installed on the housing,
It is connected between the sensor and the sensor plug connector by harness.
10. the relative displacement measuring device according to claim 1 for electric booster braking device, it is characterised in that:
The electric booster braking device further includes shell and screw on the housing is rotatably arranged, the screw and institute
It states lead screw to match, the screw is rotated by motor driven, and the screw drives the lead screw to move in a straight line when rotating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822108559.2U CN209214907U (en) | 2018-12-14 | 2018-12-14 | A kind of relative displacement measuring device for electric booster braking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822108559.2U CN209214907U (en) | 2018-12-14 | 2018-12-14 | A kind of relative displacement measuring device for electric booster braking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209214907U true CN209214907U (en) | 2019-08-06 |
Family
ID=67464628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822108559.2U Expired - Fee Related CN209214907U (en) | 2018-12-14 | 2018-12-14 | A kind of relative displacement measuring device for electric booster braking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209214907U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540507A (en) * | 2018-12-14 | 2019-03-29 | 苏州观瑞汽车技术有限公司 | A kind of relative displacement measuring device for electric booster braking device |
-
2018
- 2018-12-14 CN CN201822108559.2U patent/CN209214907U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540507A (en) * | 2018-12-14 | 2019-03-29 | 苏州观瑞汽车技术有限公司 | A kind of relative displacement measuring device for electric booster braking device |
| CN109540507B (en) * | 2018-12-14 | 2024-06-25 | 苏州观瑞汽车技术有限公司 | Relative displacement measuring device for electric power-assisted braking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190806 Termination date: 20211214 |