CN113405815A - Intelligent brake system pedal stroke detection device and detection method - Google Patents
Intelligent brake system pedal stroke detection device and detection method Download PDFInfo
- Publication number
- CN113405815A CN113405815A CN202110723190.XA CN202110723190A CN113405815A CN 113405815 A CN113405815 A CN 113405815A CN 202110723190 A CN202110723190 A CN 202110723190A CN 113405815 A CN113405815 A CN 113405815A
- Authority
- CN
- China
- Prior art keywords
- pedal
- booster
- pedal stroke
- detection
- slide rheostat
- 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.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Braking Elements And Transmission Devices (AREA)
Abstract
The invention discloses a pedal stroke detection device and a detection method of an intelligent braking system, wherein the detection device comprises a pedal stroke input unit and a pedal stroke detection unit; the pedal stroke input unit comprises a pedal, a booster input rod and a detection rod, and the top of the pedal is hinged with the vehicle body; the pedal is hinged with one end of an input rod of the booster, the other end of the input rod of the booster is connected with the booster, and the booster is fixed on the vehicle body; the middle part of the pedal is hinged with one end of the detection rod; the pedal stroke detection unit comprises a slide rheostat, a power supply, a protection resistor and a current sensor which are sequentially connected in series, and the sliding end of the slide rheostat is connected with the other end of the detection rod. The invention has simple structure and low cost; the booster is arranged outside the booster, so that the mechanical structure coupled with the booster can be simplified; the invention adopts the sliding end of the slide rheostat to be connected with the pedal through the detection rod, so that the pedal stroke can be indirectly and accurately obtained and is used for vehicle dynamics control.
Description
Technical Field
The invention relates to the technical field of automobile brake detection, in particular to an intelligent brake system pedal stroke detection device and a detection method.
Background
Along with the intelligent deep development of automobiles, the novel intelligent braking system gradually replaces the traditional vacuum boosting system. In the working process of a brake system of an automobile, the travel of a brake pedal reflects the brake operation intention of a driver, pedal operation data is generally required to be collected, but the pedal travel is difficult to accurately measure. At present, all kinds of displacement sensors that detect on the market are generally high in price, and the flexibility is not high, and arrange in the booster mostly, and the structure is complicated, consequently needs a low price, high, the high detection device of precision of flexibility for detect the brake pedal stroke.
Disclosure of Invention
In order to solve the problems, the invention provides a brake pedal stroke detection device and method which are simple in structure, low in cost, high in precision and capable of realizing pedal stroke detection.
The technical scheme adopted by the invention is as follows: a pedal travel detection device of an intelligent braking system comprises a pedal travel input unit and a pedal travel detection unit; the pedal stroke input unit comprises a pedal, a booster input rod and a detection rod, and the top of the pedal is hinged with the vehicle body; the pedal is hinged with one end of an input rod of the booster, the other end of the input rod of the booster is connected with the booster, and the booster is fixed on the vehicle body; the middle part of the pedal is hinged with one end of the detection rod; the pedal stroke detection unit comprises a slide rheostat, a power supply, a protection resistor and a current sensor which are sequentially connected in series, and the sliding end of the slide rheostat is connected with the other end of the detection rod.
A pedal stroke detection method of an intelligent braking system by using the pedal stroke detection device of the intelligent braking system comprises the following steps:
1) the pedal travel detection device of the intelligent braking system is assembled, and the booster is fixed on the vehicle body; the power supply is switched on, and the resistance value of the initial access circuit of the slide rheostat is 0;
2) when the pedal is stepped, the detection rod pushes the sliding end of the slide rheostat to move, the resistance value of the slide rheostat is increased, the total resistance of the circuit is increased, and the total current of the circuit is reduced;
3) calculating pedal travelX：
The above two formulas are jointly solved:
in the formula:R X is a pedal stroke ofXThe sliding rheostat is connected with the resistance value of the circuit,X 1 the maximum stroke of the slide rheostat is set,R 1 is the maximum resistance value of the slide rheostat,I X is a pedal stroke ofXThe current value measured by the current sensor,R 0 in order to protect the resistance value of the resistor,U 0 is the supply voltage.
Compared with the prior art, the invention has the beneficial effects that: the intelligent brake system pedal stroke detection device has the advantages of simple structure and low cost; the booster is arranged outside the booster, so that the mechanical structure coupled with the booster can be simplified; the invention adopts the sliding end of the slide rheostat to be connected with the pedal through the detection rod, so that the pedal stroke can be indirectly and accurately obtained and is used for vehicle dynamics control.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a flow chart of the detection method of the present invention.
In the figure: 1-pedal, 2-power supply, 3-lead, 4-protective resistor, 5-current sensor, 6-slide rheostat, 7-detection rod, 8-booster, 9-booster input rod and 10-vehicle body.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, the pedal stroke detection device of the intelligent braking system of the present invention includes a pedal stroke input unit and a pedal stroke detection unit; the pedal stroke input unit comprises a pedal 1, a booster 8, a booster input rod 9 and a detection rod 7, and the top of the pedal 1 is hinged with a vehicle body 10; the pedal 1 is hinged with one end of a booster input rod 9, the other end of the booster input rod 9 is connected with a booster 8, and the booster 8 is fixed on a vehicle body 10. The middle part of the pedal 1 is hinged with one end of a detection rod 7; the pedal stroke detection unit comprises a slide rheostat 6, a power supply 2, a protection resistor 4 and a current sensor 5 which are sequentially connected in series through a lead 3, wherein the sliding end of the slide rheostat 6 is connected with the other end of a detection rod 7.
As shown in fig. 2, a pedal stroke detection method using the pedal stroke detection device includes the following steps:
1) the pedal travel detection device of the intelligent braking system is assembled, and the booster 8 is fixed on the vehicle body 10; the power supply is switched on, and the resistance value of the initial access circuit of the slide rheostat 6 is 0;
2) when the pedal is stepped, the detection rod 7 pushes the sliding end of the slide rheostat 6 to move, the resistance value of the slide rheostat 6 is increased, the total resistance of the circuit is increased, and the total current of the circuit is reduced;
3) calculating pedal travelX：
The above two formulas are jointly solved:
in the formula:R X is a pedal stroke ofXThe sliding rheostat is connected with the resistance value of the circuit,X 1 the maximum stroke of the slide rheostat is set,R 1 is the maximum resistance value of the slide rheostat,I X is a pedal stroke ofXThe current value measured by the current sensor,R 0 for protection ofThe resistance value of the protection resistor is set,U 0 is the supply voltage.
Claims (2)
1. The utility model provides an intelligence braking system footboard stroke detection device which characterized by: comprises a pedal stroke input unit and a pedal stroke detection unit; the pedal stroke input unit comprises a pedal, a booster input rod and a detection rod, and the top of the pedal is hinged with the vehicle body; the pedal is hinged with one end of an input rod of the booster, the other end of the input rod of the booster is connected with the booster, and the booster is fixed on the vehicle body; the middle part of the pedal is hinged with one end of the detection rod; the pedal stroke detection unit comprises a slide rheostat, a power supply, a protection resistor and a current sensor which are sequentially connected in series, and the sliding end of the slide rheostat is connected with the other end of the detection rod.
2. An intelligent brake system pedal stroke detecting method using the intelligent brake system pedal stroke detecting device according to claim 1, comprising the steps of:
1) the pedal travel detection device of the intelligent braking system is assembled, and the booster is fixed on the vehicle body; the power supply is switched on, and the resistance value of the initial access circuit of the slide rheostat is 0;
2) when the pedal is stepped, the detection rod pushes the sliding end of the slide rheostat to move, the resistance value of the slide rheostat is increased, the total resistance of the circuit is increased, and the total current of the circuit is reduced;
3) calculating pedal travelX：
The above two formulas are jointly solved:
in the formula:R X is a pedal stroke ofXThe sliding rheostat is connected with the resistance value of the circuit,X 1 the maximum stroke of the slide rheostat is set,R 1 is the maximum resistance value of the slide rheostat,I X is a pedal stroke ofXThe current value measured by the current sensor,R 0 in order to protect the resistance value of the resistor,U 0 is the supply voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110723190.XA CN113405815A (en) | 2021-06-29 | 2021-06-29 | Intelligent brake system pedal stroke detection device and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110723190.XA CN113405815A (en) | 2021-06-29 | 2021-06-29 | Intelligent brake system pedal stroke detection device and detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113405815A true CN113405815A (en) | 2021-09-17 |
Family
ID=77679966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110723190.XA Pending CN113405815A (en) | 2021-06-29 | 2021-06-29 | Intelligent brake system pedal stroke detection device and detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113405815A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929877A (en) * | 2010-03-30 | 2010-12-29 | 重庆长安汽车股份有限公司 | Automobile pedal travel sensor |
| CN206394530U (en) * | 2016-12-30 | 2017-08-11 | 大连海洋大学 | Can display automobile brake control power size device |
| CN206615204U (en) * | 2017-02-06 | 2017-11-07 | 潍柴动力股份有限公司 | A kind of brake pedal opening amount signal harvester and master cylinder |
| CN108313036A (en) * | 2018-01-11 | 2018-07-24 | 江苏大学 | A kind of electromagnet brake pedal apparatus and control method |
| CN110979275A (en) * | 2019-12-20 | 2020-04-10 | 湘潭大学 | Brake pedal displacement detection device and detection method |
-
2021
- 2021-06-29 CN CN202110723190.XA patent/CN113405815A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929877A (en) * | 2010-03-30 | 2010-12-29 | 重庆长安汽车股份有限公司 | Automobile pedal travel sensor |
| CN206394530U (en) * | 2016-12-30 | 2017-08-11 | 大连海洋大学 | Can display automobile brake control power size device |
| CN206615204U (en) * | 2017-02-06 | 2017-11-07 | 潍柴动力股份有限公司 | A kind of brake pedal opening amount signal harvester and master cylinder |
| CN108313036A (en) * | 2018-01-11 | 2018-07-24 | 江苏大学 | A kind of electromagnet brake pedal apparatus and control method |
| CN110979275A (en) * | 2019-12-20 | 2020-04-10 | 湘潭大学 | Brake pedal displacement detection device and detection method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106643456B (en) | A kind of pedal travel measuring device and method for driving data acquisition system | |
| CN105467323A (en) | Method for detecting the available traveling distance of electric vehicle power battery | |
| CN202158894U (en) | Dynamic vehicle weighing system | |
| CN107225978A (en) | Brake of electric vehicle method, device and electric car | |
| CN113405815A (en) | Intelligent brake system pedal stroke detection device and detection method | |
| CN100528681C (en) | Electric assisted vehicle booster control device | |
| CN107298087B (en) | A kind of tandem brake energy recycling system and method | |
| CN207389175U (en) | A kind of Novel pedal feels simulator and pedal travel computing device | |
| CN206544531U (en) | A kind of brake booster | |
| CN201484206U (en) | Braking system of electric automobile | |
| CN103323261A (en) | Vehicle-mounted braking energy recovery detecting system of electric car and hybrid power car | |
| WO2015030865A1 (en) | Driver braking demand indicator apparatus for a heavy vehicle | |
| CN214396712U (en) | Pedal feel simulator applied to brake-by-wire system | |
| CN115782849A (en) | Deceleration correction-based heat fading compensation method for multi-axis commercial vehicle line control brake system | |
| CN109374192A (en) | A kind of pressure sensor for micro pressure measuring | |
| CN106772623A (en) | A kind of condenser type seat sensor and method of work | |
| CN112918375B (en) | Embedded intelligent brake early warning system | |
| CN206593587U (en) | A kind of pedal travel measurement apparatus for driving data acquisition system | |
| CN203753120U (en) | Brake device for electric vehicle | |
| CN206114175U (en) | Biped robot ZMP measuring device | |
| CN203658064U (en) | Automobile brake testing device based on ARM controller | |
| CN207095587U (en) | A kind of foil gauge capacitance type sensor | |
| CN107826064B (en) | Acceleration pedal of electric automobile signal correcting circuit | |
| CN103728073A (en) | Detecting system and method for separating brake half shaft buckling force of operating mechanism | |
| CN201457088U (en) | Digital automobile meter automatically calibrated by analog signal sampling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210917 |