CN109435935B - Angular displacement sensor device for detecting pedal displacement - Google Patents
Angular displacement sensor device for detecting pedal displacement Download PDFInfo
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- CN109435935B CN109435935B CN201811481386.7A CN201811481386A CN109435935B CN 109435935 B CN109435935 B CN 109435935B CN 201811481386 A CN201811481386 A CN 201811481386A CN 109435935 B CN109435935 B CN 109435935B
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 110
- 238000006243 chemical reaction Methods 0.000 claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 239000000428 dust Substances 0.000 claims abstract description 5
- 230000001939 inductive effect Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000010354 integration Effects 0.000 abstract description 3
- 230000008859 change Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
Abstract
The invention provides an angle displacement sensor device for detecting pedal displacement, which comprises a hydraulic module, a brake push rod, a displacement angle conversion mechanism, an angle displacement sensor, a controller PCB main board, a controller shell, a controller upper cover and a non-magnetic conductive dust cover. According to the angular displacement sensor device for detecting pedal displacement, the angular displacement sensor with higher precision and smaller space structure can be further used for detecting pedal displacement by adding the displacement and angle conversion mechanism. Meanwhile, the angle sensor moving part of the angle displacement sensor is separated from the angle sensor chip, so that the integration of the angle sensor PCB sub-board and the controller PCB main board is realized, the sensor PCB sub-board and a connector for connecting the sensor PCB sub-board and the controller PCB main board are saved, and the cost of the electric control braking system is reduced.
Description
Technical Field
The invention belongs to the technical field of displacement sensors, and particularly relates to an angle displacement sensor device for detecting pedal displacement.
Background
In the existing integrated electric control braking system, a pedal displacement sensor is required to be integrated into a controller and a hydraulic module, as shown in fig. 1, the pedal displacement sensor is usually realized by using a Hall displacement sensor, a magnetic group is fixed on a part to be tested or a part connected with the part to be tested, a PCB (printed Circuit Board) daughter board with a Hall chip converts a changed magnetic field signal into an electric signal, and the electric signal is transmitted to a PBC (physical Block) main board of the controller through a connector and other parts, so that the automobile braking system is controlled.
The existing integrated electric control brake system mainly has the following three problems:
1. the Hall displacement sensor has limited precision, so that the manufacturing and assembly precision of the Hall displacement sensor needs to be strictly controlled to meet the system precision requirement, the process difficulty is high, and the cost is high;
2. the structure, performance and space of the controlled braking system are limited, the Hall displacement sensor does linear reciprocating motion when working, the magnet assembly is required to have larger motion space, and meanwhile, if the magnet assembly of the Hall sensor is close to the controller PCB main board and does long-distance motion, the performance of the controller PCB main board is greatly affected. Therefore, the PCB daughter board of the sensor cannot be further integrated onto the controller PCB motherboard;
3. the space structure and the precision of the controlled braking system are limited, and the commonly used magnetic resistance and inductance type sensor is difficult to apply.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide an angle displacement sensor device for detecting pedal displacement, which converts linear reciprocating motion into angle change by adding a displacement and angle conversion mechanism, so that an angle sensor with higher precision and smaller space structure can be used for converting the displacement of a linear motion component to be tested of an electric control brake into the angle change. Meanwhile, as the arrangement space of the angle sensor is smaller, the arrangement of the angle sensor is more flexible, and the sensor PCB daughter board and the controller PCB mainboard can be integrated by separating the angle sensor moving part of the angle sensor from the angle sensor chip.
In order to achieve the above object, the present invention provides an angular displacement sensor device for detecting pedal displacement, which has the following specific technical scheme:
an angle displacement sensor device for detecting pedal displacement comprises a hydraulic module, a brake push rod, a displacement angle conversion mechanism, an angle displacement sensor, a controller PCB main board, a controller shell and a controller upper cover; the angle displacement sensor consists of an angle sensor moving part and an angle sensor chip, and the angle sensor chip is arranged right above the angle sensor moving part; the displacement angle conversion mechanism consists of a linear motion piece and an angle motion piece, wherein a first displacement angle conversion part is arranged on the linear motion piece, and a second displacement angle conversion part matched with the first displacement angle conversion part on the linear motion piece is arranged on the angle motion piece; the linear motion piece is fixedly connected with the brake push rod, and the angle motion piece is fixedly connected with the angle sensor motion part; the hydraulic module is provided with a brake push rod mounting hole matched with the brake push rod, a linear motion piece mounting hole matched with the linear motion piece and an angle motion piece mounting hole matched with the angle motion piece, the axis of the brake push rod mounting hole is parallel to the axis of the linear motion piece mounting hole, the axis of the brake push rod mounting hole is perpendicular to the axis of the angle motion piece mounting hole, and the linear motion piece mounting hole is communicated with the angle motion piece mounting hole; the angle sensor chip is arranged on a controller PCB main board, the controller PCB main board is arranged inside a controller shell, the controller shell is arranged on the upper surface of the hydraulic module, and the controller upper cover is arranged on the upper portion of the controller shell.
According to the angular displacement sensor device for detecting pedal displacement, the brake push rod is connected with the linear motion piece, the linear motion piece is matched with the angular motion piece to convert linear motion of the brake push rod into circular motion, and the angular motion piece drives the angular sensor motion part to do circular motion. Therefore, the angle sensor moving part is relatively integrated to the angle sensor chip rotation angle of the controller PCB main board, the angle sensor chip on the controller PCB main board senses the angle change, and the displacement of the brake push rod is converted into an electric signal, so that the brake system controller obtains the brake intention of a driver, and controls the brake mode by combining other running parameters of the whole vehicle.
The angular displacement sensor device for detecting pedal displacement realizes the conversion from linear reciprocating motion to circular motion, and further can use an angular sensor with higher precision and smaller space structure. Meanwhile, the angle sensor moving part of the angle displacement sensor is separated from the angle sensor chip, so that integration of the sensor PCB sub-board and the controller PCB main board is realized, the sensor PCB sub-board and a connector for connecting the sensor PCB sub-board and the controller PCB main board are saved, and the cost of the electric control braking system is reduced. The angular displacement sensor device for detecting pedal displacement of the present invention relates to only structural improvement, and not to improvement of controller software.
Further, the angle displacement sensor is an inductive angle sensor, and the angle sensor moving part is a coil.
Further, the angle displacement sensor is a Hall type angle sensor, and the angle sensor moving part is a magnet.
Further, the angular displacement sensor is a reluctance type angular sensor, and the angular sensor moving part is a magnet.
Further, the displacement angle conversion mechanism is a gear-rack transmission mechanism, a first displacement angle conversion part arranged on the linear motion piece is a rack, a second displacement angle conversion part arranged on the angle motion piece is a gear, and the linear motion piece and the angle motion piece are matched with the gear through the rack. It should be noted that, under the condition of meeting the requirement of space arrangement, the known displacement angle conversion mechanism can be used in the invention.
Further, the angular displacement sensor device for detecting pedal displacement further comprises a non-magnetic-conductive dust cover, wherein the non-magnetic-conductive dust cover is arranged at the top end of the angular sensor moving part and used for separating the angular sensor moving part from the controller PCB main board and preventing lubricating oil and sundries in the angular sensor moving part from entering the controller.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the angular displacement sensor device for detecting pedal displacement, the displacement and angle conversion mechanism is additionally arranged, so that an angle sensor with higher precision and smaller space structure can be used. Meanwhile, the angle sensor moving part of the angle displacement sensor is separated from the angle sensor chip, so that integration of the sensor PCB sub-board and the controller PCB main board is realized, a connector between the sensor PCB sub-board and the controller PCB main board is saved, and the cost of the electric control braking system is reduced;
2. according to the angular displacement sensor device for detecting pedal displacement, the angular sensor moving part of the angular displacement sensor is separated from the angular sensor chip, so that the selection range of the displacement sensor is enlarged, and the inductive angular sensor, the Hall type angular sensor and the magnetic resistance type angular sensor can be used for the angular displacement sensor device for detecting pedal displacement.
Drawings
FIG. 1 is a schematic diagram of a conventional integrated electronic control brake system with a device for detecting pedal displacement sensor on a shaft side;
FIG. 2 is a schematic view of the axial structure of an angular displacement sensor device for detecting pedal displacement according to the present invention;
FIG. 3 is a schematic view of an angular displacement sensor device for detecting pedal displacement according to the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is a left side view of FIG. 3;
fig. 6 is a cross-sectional view taken along line B-B of fig. 4.
The device comprises a 1-controller upper cover, a 2-controller shell, a 3-hydraulic module, a 4-brake push rod, a 5-linear motion piece, a 6-controller PCB main board, a 7-angle motion piece, an 8-angle sensor motion piece, a 9-angle sensor chip, a 10-non-magnetic conduction dust cover, a 31-brake push rod mounting hole, a 32-linear motion piece mounting hole, a 33-angle motion piece mounting hole, a 51-first displacement angle conversion part and a 71-second displacement angle conversion part.
Detailed Description
Any feature disclosed in this specification may be replaced by alternative features serving the same or equivalent purpose, unless expressly stated otherwise; that is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.
The following describes in detail the embodiments of the present invention with reference to the drawings and examples.
An angular displacement sensor device for detecting pedal displacement according to the present embodiment is shown in fig. 2-6, and the angular displacement sensor device for detecting pedal displacement includes a hydraulic module 3, a brake push rod 4, a displacement angle conversion mechanism, an angular displacement sensor, a controller PCB main board 6, a controller housing 2, and a controller upper cover 1; the angle displacement sensor is a Hall type angle sensor and consists of an angle sensor moving part 8 and an angle sensor chip 9, wherein the angle sensor chip 9 is arranged right above the angle sensor moving part 8, and the angle sensor moving part 8 is a magnet; the displacement angle conversion mechanism consists of a linear motion piece 5 and an angle motion piece 7, wherein a first displacement angle conversion part 51 arranged on the linear motion piece is a rack, a second displacement angle conversion part 71 arranged on the angle motion piece is a gear, and the linear motion piece 5 and the angle motion piece 7 are matched with each other through the rack and the gear; the linear motion piece 5 is fixedly connected with the brake push rod 4, and the angle motion piece 7 is fixedly connected with the angle sensor motion part 8; the hydraulic module 3 is provided with a brake push rod mounting hole 31 matched with the brake push rod 4, a linear motion piece mounting hole 32 matched with the linear motion piece 5 and an angle motion piece mounting hole 33 matched with the angle motion piece 7, the axis of the brake push rod mounting hole 31 is parallel to the axis of the linear motion piece 32 mounting hole, the axis of the brake push rod mounting hole 31 is perpendicular to the axis of the angle motion piece mounting hole 33, and the linear motion piece mounting hole 32 is communicated with the angle motion piece mounting hole 33; the angle sensor chip 9 is arranged on the controller PCB main board 6, the controller PCB main board 6 is arranged inside the controller shell 2, the controller shell 2 is arranged on the upper surface of the hydraulic module 3, and the controller upper cover 1 is arranged on the upper part of the controller shell 2.
According to the angular displacement sensor device for detecting pedal displacement, the brake push rod 4 drives the linear motion piece 5 to move, the linear motion piece 5 and the angular motion piece 7 are matched to convert linear motion into circular motion, and the angular motion piece 7 drives the angular sensor motion part 8 to do circular motion. Therefore, the angle sensor moving part 8 rotates by an angle relative to the angle sensor chip 9 integrated on the controller PCB main board 6, the angle sensor chip 9 on the controller PCB main board 6 senses the angle change and converts the displacement of the brake push rod 4 into an electric signal, so that the brake system controller obtains the brake intention of a driver, and controls the brake mode by combining other operation parameters of the whole vehicle.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (6)
1. The angular displacement sensor device for detecting pedal displacement comprises a hydraulic module, a brake push rod, a controller PCB main board, a controller shell, a controller upper cover, and is characterized by further comprising a displacement angle conversion mechanism and an angular displacement sensor, wherein the angular displacement sensor consists of an angular sensor moving part and an angular sensor chip, and the angular sensor chip is arranged right above the angular sensor moving part; the displacement angle conversion mechanism consists of a linear motion piece and an angle motion piece, wherein a first displacement angle conversion part is arranged on the linear motion piece, and a second displacement angle conversion part matched with the first displacement angle conversion part on the linear motion piece is arranged on the angle motion piece; the linear motion piece is fixedly connected with the brake push rod, and the angle motion piece is fixedly connected with the angle sensor motion part; the hydraulic module is provided with a brake push rod mounting hole matched with the brake push rod, a linear motion piece mounting hole matched with the linear motion piece and an angle motion piece mounting hole matched with the angle motion piece, the axis of the brake push rod mounting hole is parallel to the axis of the linear motion piece mounting hole, the axis of the brake push rod mounting hole is perpendicular to the axis of the angle motion piece mounting hole, and the linear motion piece mounting hole is communicated with the angle motion piece mounting hole; the angle sensor chip is arranged on a controller PCB main board, the controller PCB main board is arranged inside a controller shell, the controller shell is arranged on the upper surface of the hydraulic module, and the controller upper cover is arranged on the upper portion of the controller shell.
2. The angular displacement sensor device for detecting pedal displacement according to claim 1, wherein the angular displacement sensor is an inductive angular sensor and the angular sensor moving member is a coil.
3. The angular displacement sensor device for detecting pedal displacement according to claim 1, wherein the angular displacement sensor is a hall type angular sensor, and the angular sensor moving member is a magnet.
4. The angular displacement sensor device for detecting pedal displacement according to claim 1, wherein the angular displacement sensor is a magneto-resistive angular sensor, and the angular sensor moving member is a magnet.
5. The angular displacement sensor device for detecting pedal displacement according to claim 1, wherein the displacement angle conversion mechanism is a rack-and-pinion transmission mechanism, the first displacement angle conversion portion provided on the linear motion member is a rack, the second displacement angle conversion portion provided on the angular motion member is a gear, and the linear motion member and the angular motion member are engaged with the gear through the rack.
6. The angular displacement sensor device for detecting pedal displacement according to claim 1, further comprising a non-magnetically conductive dust cover disposed on top of the angular sensor moving member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811481386.7A CN109435935B (en) | 2018-12-05 | 2018-12-05 | Angular displacement sensor device for detecting pedal displacement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811481386.7A CN109435935B (en) | 2018-12-05 | 2018-12-05 | Angular displacement sensor device for detecting pedal displacement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109435935A CN109435935A (en) | 2019-03-08 |
| CN109435935B true CN109435935B (en) | 2024-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811481386.7A Active CN109435935B (en) | 2018-12-05 | 2018-12-05 | Angular displacement sensor device for detecting pedal displacement |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112660095B (en) * | 2019-10-15 | 2022-03-18 | 比亚迪股份有限公司 | Hydraulic device for brake system, brake system and vehicle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009227276A (en) * | 2004-01-30 | 2009-10-08 | Hitachi Ltd | Vehicle controller |
| JP2012251809A (en) * | 2011-06-01 | 2012-12-20 | Honda Motor Co Ltd | Magnetic type rotation angle detection device and brake bi-wire type braking controller |
| CN104787020A (en) * | 2015-03-20 | 2015-07-22 | 同济大学 | Electronic hydraulic braking system with novel decoupling mode |
| CN107585146A (en) * | 2017-07-12 | 2018-01-16 | 格陆博科技有限公司 | A kind of device for detecting brake pedal position |
| CN107585147A (en) * | 2017-07-12 | 2018-01-16 | 格陆博科技有限公司 | A kind of device for detecting brake pedal position |
| CN209426757U (en) * | 2018-12-05 | 2019-09-24 | 曾子珂 | It is a kind of for detecting the angle displacement sensor device of pedal displacement |
| CN112061105A (en) * | 2020-10-12 | 2020-12-11 | 曾子珂 | Angle sensor module device for detecting pedal displacement |
-
2018
- 2018-12-05 CN CN201811481386.7A patent/CN109435935B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009227276A (en) * | 2004-01-30 | 2009-10-08 | Hitachi Ltd | Vehicle controller |
| JP2012251809A (en) * | 2011-06-01 | 2012-12-20 | Honda Motor Co Ltd | Magnetic type rotation angle detection device and brake bi-wire type braking controller |
| CN104787020A (en) * | 2015-03-20 | 2015-07-22 | 同济大学 | Electronic hydraulic braking system with novel decoupling mode |
| CN107585146A (en) * | 2017-07-12 | 2018-01-16 | 格陆博科技有限公司 | A kind of device for detecting brake pedal position |
| CN107585147A (en) * | 2017-07-12 | 2018-01-16 | 格陆博科技有限公司 | A kind of device for detecting brake pedal position |
| CN209426757U (en) * | 2018-12-05 | 2019-09-24 | 曾子珂 | It is a kind of for detecting the angle displacement sensor device of pedal displacement |
| CN112061105A (en) * | 2020-10-12 | 2020-12-11 | 曾子珂 | Angle sensor module device for detecting pedal displacement |
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| CN109435935A (en) | 2019-03-08 |
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