CN111896249B - Clutch life prediction method and system of booster with displacement sensor - Google Patents
Clutch life prediction method and system of booster with displacement sensor Download PDFInfo
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- CN111896249B CN111896249B CN202010784501.9A CN202010784501A CN111896249B CN 111896249 B CN111896249 B CN 111896249B CN 202010784501 A CN202010784501 A CN 202010784501A CN 111896249 B CN111896249 B CN 111896249B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/022—Power-transmitting couplings or clutches
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- 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
Abstract
The invention provides a clutch life prediction method and a system of a booster with a displacement sensor, wherein the method comprises the following steps: s1, setting a displacement sensor to detect the position of a clutch booster piston through an induction pull rod; s2, recording the initial position of a clutch booster piston acquired by a displacement sensor; s3, setting a displacement sensor interval setting mileage, acquiring the current position of a clutch booster piston, calculating the residual abrasion loss, the driving mileage of unit abrasion loss and the residual cruising mileage when judging the abrasion of the clutch, and outputting the residual abrasion loss, the driving mileage of unit abrasion loss and the residual cruising mileage when reaching a vehicle mileage threshold value. The invention realizes the prediction of the service life of the clutch, avoids the failure of the vehicle in the half-way break-down caused by the insufficient experience or subjective judgment error of the driver, and can provide visual clutch use information for the driver so as to facilitate the driver to make a clutch replacement plan.
Description
Technical Field
The invention belongs to the technical field of intellectualization of commercial vehicle clutches, and particularly relates to a clutch life prediction method and system of a booster with a displacement sensor.
Background
The prior prejudgment of the service life of the clutch of the commercial vehicle is mainly based on the driving experience of a driver and the replacement experience of the clutch. The driver is required to replace the clutch in time when the clutch is worn to the limit stage, and if experience is insufficient or subjective judgment is wrong, the failure of the vehicle in the half-way break down can be caused. Secondly, if the driver cannot directly know the use condition of the clutch, the driver cannot make a clutch replacement plan in advance. And the driving habit of the driver in the starting stage plays a key role in the service life of the clutch, for example, in the starting stage, the sliding abrasion of the clutch is aggravated by the operations of high rotation speed of the engine, high gear starting, large accelerator opening and the like, the abrasion of the clutch is accelerated, how to reflect the abrasion condition of the clutch in each stage, and the improvement of the driving technology by the driver is also a great difficulty.
This is a disadvantage of the prior art, and therefore, it is highly desirable to provide a method and system for predicting clutch life of a displacement sensor-equipped booster that addresses the above-described deficiencies of the prior art.
Disclosure of Invention
Aiming at the defect that the service life of the clutch can only be predicted through experience of a driver in the prior art, the invention provides a clutch service life prediction method and system of a booster with a displacement sensor, and aims to solve the technical problems.
In a first aspect, the present invention provides a clutch life prediction method for a displacement sensor-equipped booster, comprising the steps of:
s1, setting a displacement sensor to detect the position of a clutch booster piston through an induction pull rod;
s2, recording the initial position of a clutch booster piston acquired by a displacement sensor;
s3, setting a displacement sensor interval setting mileage, acquiring the current position of a clutch booster piston, calculating the residual abrasion loss, the driving mileage of unit abrasion loss and the residual cruising mileage when judging the abrasion of the clutch, and outputting the residual abrasion loss, the driving mileage of unit abrasion loss and the residual cruising mileage when reaching a vehicle mileage threshold value.
Further, the specific steps of step S1 are as follows:
s11, one end of the induction pull rod is connected with a clutch booster piston;
s12, arranging the other end of the induction pull rod to penetrate through the displacement sensor and slide along the cavity inside the displacement sensor;
s13, setting a displacement sensor to obtain the induction pull rod and the clutch booster according to different inductance values generated by the displacement sensor and the induction pull rodDifferent positions of the plug. The clutch booster piston is connected with the induction pull rod, the induction pull rod moves in the displacement sensor, different inductance values are generated at different positions, and the positions of the induction pull rod and the piston are obtained by analyzing the inductance values; clutch release process: the clutch booster piston moves forwards to drive the induction pull rod to move forwards; clutch wear process: the clutch booster piston moves backwards and drives the induction pull rod to move backwards at the same time, when the movement quantity is more than the limit abrasion quantity delta 0 And sending out an alarm signal.
Further, the specific steps of step S2 are as follows:
s21, after the whole vehicle is off line, carrying out an electrifying test;
s22, setting a displacement sensor to acquire the position of a clutch booster piston for 1 time in an initial time period T at each interval time period delta T to obtain n position values, wherein n=T/delta T;
s23, taking the minimum value of the n position values as the position A of the clutch booster piston.
Further, the specific steps of step S3 are as follows:
s31, setting a displacement sensor interval setting mileage M, and obtaining the current position B of a clutch booster piston n And at the current position B of the clutch booster piston n With last acquired clutch booster piston position B n-1 Comparative B n ≤B n-1 At this time, the clutch wear is determined and the current position B of the clutch booster piston is recorded n ；
S32, calculating the residual abrasion loss as A-B n Calculating the residual abrasion rate to be 1- (A-B) n ) Δo, where Δo is the clutch wear threshold;
s33, calculating the running mileage C of the unit abrasion loss n ＝M/(B n-1 -B n )；
S34, calculating the remaining cruising mileage as [ delta O- (A-B) n )]×C n ；
S35, judging whether the vehicle mileage threshold value is an integral multiple of the vehicle mileage threshold value;
if yes, go to step S36;
if not, returning to the step S31;
s36, outputting the residual abrasion loss, the driving mileage of the unit abrasion loss and the residual cruising mileage.
Further, in step S31, when the clutch is in the disengaged state and the clutch piston friction is thermally expanded, B n ＞B n-1 At this time, B n The value is not saved.
Further, in step S32, when A-B n When delta O is larger than delta O, giving out an overrun alarm of clutch wear;
in step S33, the mileage C of the previous p times of unit abrasion loss is calculated 1 ，C 2 ……C p ；
Set c= (C 1 +C 2 ……C p )/p。
In a second aspect, the present invention provides a clutch life prediction system with a displacement sensor booster, comprising:
the clutch booster piston position detection module is used for setting a displacement sensor to detect the position of the clutch booster piston through the induction pull rod;
the initial position recording module is used for recording the initial position of the clutch booster piston acquired by the displacement sensor;
the abrasion loss and endurance mileage calculation module is used for setting the distance setting mileage of the displacement sensor, obtaining the current position of the piston of the clutch booster, calculating the residual abrasion loss, the driving mileage of the unit abrasion loss and the residual endurance mileage when judging the abrasion loss of the clutch, and outputting the residual abrasion loss, the driving mileage of the unit abrasion loss and the residual endurance mileage when reaching the threshold value of the automobile mileage.
Further, the clutch booster piston position detection module includes:
the induction pull rod piston connecting unit is used for arranging one end of the induction pull rod to be connected with the clutch booster piston;
the induction pull rod displacement sensor connecting unit is used for arranging the other end of the induction pull rod to penetrate through the displacement sensor and slide along the inner cavity of the displacement sensor;
and the displacement sensor detection unit is used for setting the displacement sensor to acquire different positions of the induction pull rod and the clutch booster piston according to different inductance values generated by the displacement sensor and the induction pull rod.
Further, the initial position recording module includes:
the power-on test starting unit is used for carrying out power-on test after the whole vehicle is off line;
an initial position obtaining unit, configured to set the displacement sensor to obtain positions of the clutch booster piston 1 time every interval period Δt in an initial period T, to obtain n position values, where n=t/Δt;
and the initial position setting unit is used for taking the minimum value of the n position values as the position A of the clutch booster piston.
Further, the wear amount and endurance mileage calculation module includes:
the clutch wear current position recording unit is used for setting a displacement sensor interval setting mileage M and acquiring a current position B of a clutch booster piston n And at the current position B of the clutch booster piston n With last acquired clutch booster piston position B n-1 Comparative B n ≤B n-1 At this time, the clutch wear is determined and the current position B of the clutch booster piston is recorded n ；
A residual abrasion amount calculating unit for calculating the residual abrasion amount as A-B n Calculating the residual abrasion rate to be 1- (A-B) n ) Δo, where Δo is the clutch wear threshold;
a unit wear amount driving distance calculating unit for calculating the driving distance C of the unit wear amount n ＝M/(B n-1 -B n )；
The cruising mileage calculation unit is used for calculating the remaining cruising mileage as [ delta O- (A-B) n )]×C n ；
The mileage threshold value judging unit is used for judging whether the mileage threshold value reaches the integral multiple of the mileage threshold value of the automobile or not;
and the abrasion loss and cruising output unit is used for outputting the residual abrasion loss, the driving mileage of the unit abrasion loss and the residual cruising mileage when the threshold value of the automobile mileage is integer multiple.
The invention has the advantages that,
the clutch life prediction method and the system with the displacement sensor booster provided by the invention realize the prediction of the clutch life, avoid the failure of the vehicle half-way anchoring caused by insufficient experience or subjective judgment error of a driver, and simultaneously provide visual clutch use information for the driver so as to facilitate the driver to make a clutch replacement plan; according to the invention, the quantification of the abrasion condition of the clutch is realized, and the comparison of the driving technology of a driver is realized by comparing the abrasion of the clutch under the same vehicle condition and road condition, so that the driver is urged to improve the driving technology, and the service life of the clutch is prolonged.
In addition, the invention has reliable design principle, simple structure and very wide application prospect.
It can be seen that the present invention has outstanding substantial features and significant advances over the prior art, as well as the benefits of its implementation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a schematic flow chart of the method of the present invention;
FIG. 2 is a schematic diagram of a clutch configuration of the displacement sensor-equipped booster of the present invention;
FIG. 3 is a second flow chart of the method of the present invention;
FIG. 4 is a schematic diagram of a system according to the present invention;
in the figure, a 1-clutch booster piston position detection module; 1.1-an induction pull rod piston connecting unit; 1.2-a connecting unit of an induction pull rod displacement sensor; 1.3-a displacement sensor detection unit; 2-an initial position recording module; 2.1-a power-on test initiation unit; 2.2-an initial position acquisition unit; 2.3-an initial position setting unit; 3-an abrasion loss and endurance mileage calculation module; 3.1-clutch wear current position registration unit; 3.2-remaining wear amount calculation unit; 3.3-a unit wear amount travel distance calculation unit; 3.4-a cruising mileage calculation unit; 3.5-mileage threshold value judging unit; 3.6-abrasion loss and endurance output unit; 4-clutch booster piston; 5-induction pull rod; 6-displacement sensor.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
Example 1:
as shown in fig. 1 and 2, the present invention provides a clutch life prediction method of a booster with a displacement sensor, comprising the steps of:
s1, setting a displacement sensor to detect the position of a clutch booster piston through an induction pull rod;
s2, recording the initial position of a clutch booster piston acquired by a displacement sensor;
s3, setting a displacement sensor interval setting mileage, acquiring the current position of a clutch booster piston, calculating the residual abrasion loss, the driving mileage of unit abrasion loss and the residual cruising mileage when judging the abrasion of the clutch, and outputting the residual abrasion loss, the driving mileage of unit abrasion loss and the residual cruising mileage when reaching a vehicle mileage threshold value.
Example 2:
as shown in fig. 2 and 3, the present invention provides a clutch life prediction method of a booster with a displacement sensor, comprising the steps of:
s1, setting a displacement sensor to detect the position of a clutch booster piston through an induction pull rod; the method comprises the following specific steps:
s11, one end of the induction pull rod is connected with a clutch booster piston;
s12, arranging the other end of the induction pull rod to penetrate through the displacement sensor and slide along the cavity inside the displacement sensor;
s13, setting a displacement sensor to acquire different positions of the induction pull rod and the clutch booster piston according to different inductance values generated by the displacement sensor and the induction pull rod;
s2, recording the initial position of a clutch booster piston acquired by a displacement sensor; the method comprises the following specific steps:
s21, after the whole vehicle is off line, carrying out an electrifying test;
s22, setting a displacement sensor to acquire the position of a clutch booster piston for 1 time in an initial time period T at each interval time period delta T to obtain n position values, wherein n=T/delta T;
s23, taking the minimum value of the n position values as a position A of a clutch booster piston;
s3, setting mileage at intervals of a displacement sensor, acquiring the current position of a piston of a clutch booster, calculating the residual abrasion loss, the driving mileage of unit abrasion loss and the residual cruising mileage when judging abrasion of the clutch, and outputting the residual abrasion loss, the driving mileage of unit abrasion loss and the residual cruising mileage when reaching a threshold value of the automobile mileage; the method comprises the following specific steps:
s31, setting a displacement sensor interval setting mileage M, and obtaining the current position B of a clutch booster piston n And at the current position B of the clutch booster piston n With last acquired clutch booster piston position B n-1 Comparative B n ≤B n-1 At this time, the clutch wear is determined and the current position B of the clutch booster piston is recorded n ；
S32, calculating the residual abrasion loss as A-B n Calculating the residual abrasion rate to be 1- (A-B) n ) Δo, where Δo is the clutch wear threshold;
s33, calculating the running mileage C of the unit abrasion loss n ＝M/(B n-1 -B n )；
S34, calculating the remaining cruising mileage as [ delta O- (A-B) n )]×C n ；
S35, judging whether the vehicle mileage threshold value is an integral multiple of the vehicle mileage threshold value;
if yes, go to step S36;
if not, returning to the step S31;
s36, outputting the residual abrasion loss, the driving mileage of the unit abrasion loss and the residual cruising mileage.
In the above embodiment, the clutch booster piston 4 is connected to the induction pull rod 5, the induction pull rod 5 moves in the displacement sensor 6, different inductance values are generated at different positions, and the positions of the induction pull rod 5 and the piston 4 are obtained by analyzing the inductance values.
Clutch release process: the clutch booster piston 4 moves forward, driving the induction pull rod 5 to move forward.
Clutch wear process: the clutch booster piston 4 moves backwards and drives the induction pull rod 5 to move backwards, and when the movement quantity is more than the limit abrasion quantity delta 0, an alarm signal is sent;
after the whole vehicle is off line, electrifying;
reading the sensor position every 1 second within 10 seconds;
judging whether a clutch signal exists in the 10 second reading period to confirm that the clutch pedal is not stepped on within 10 seconds;
storing the minimum value in 10 times as an initial value A;
reading the driving mileage of the whole vehicle, and executing reading of the sensor position B when the driving mileage is judged to reach the integral multiple of 100Km n ；
Judging whether or not B n ≤B n-1 I.e. by comparison with the position of the displacement sensor of the last reading, it is determined whether this reading is valid. Number of displacement sensor positions B under normal wear condition n Is tapered, but there are two exceptional cases: firstly, the friction material thermally expands due to friction heat; second, read B n When the clutch is in a disengaged state; both cases are regarded as invalid data, and are not stored;
calculating the percentage of the residual abrasion loss to the total abrasion loss, wherein the calculation formula is 1- (A-B n )/ΔO；
Calculate the mileage 100/(B) of 1mm per abrasion n-1 -B n ) Stored as Cn;
read three times before C n Calculating and storing an average value C;
calculating the cruising mileage [ delta O- (A-B) n )]×C n ；
Judging whether the driving mileage reaches an integer multiple of 1 ten thousand kilometers;
and outputting the residual abrasion loss, the driving mileage per abrasion of 1mm and the cruising mileage information.
In certain embodiments, in step S31, when the clutch is in a disengaged state and the clutch piston is frictionally heat expanded, B n ＞B n-1 At this time, B n The value is not saved;
in step S32, when A-B n When delta O is larger than delta O, giving out an overrun alarm of clutch wear;
in step S33, the mileage C of the previous p times of unit abrasion loss is calculated 1 ，C 2 ……C p ；
Set c= (C 1 +C 2 ……C p )/p。
Example 3:
as shown in fig. 4, the present invention provides a clutch life prediction system with a displacement sensor booster, comprising:
the clutch booster piston position detection module 1 is used for setting a displacement sensor to detect the position of the clutch booster piston through an induction pull rod; the clutch booster piston position detection module 1 includes:
the induction pull rod piston connecting unit 1.1 is used for arranging one end of the induction pull rod to be connected with the clutch booster piston;
the induction pull rod displacement sensor connecting unit 1.2 is used for arranging the other end of the induction pull rod to penetrate through the displacement sensor and slide along the inner cavity of the displacement sensor;
the displacement sensor detection unit 1.3 is used for setting the displacement sensor to acquire different positions of the induction pull rod and the clutch booster piston according to different inductance values generated by the displacement sensor and the induction pull rod;
the initial position recording module 2 is used for recording the initial position of the clutch booster piston acquired by the displacement sensor; the initial position recording module 2 includes:
the power-on test starting unit 2.1 is used for carrying out power-on test after the whole vehicle is off line;
an initial position obtaining unit 2.2, configured to set the displacement sensor to obtain a position of the clutch booster piston 1 time every interval period Δt in an initial period T, to obtain n position values, where n=t/Δt;
an initial position setting unit 2.3, configured to take a minimum value of the n position values as a position a of the clutch booster piston;
the abrasion loss and endurance mileage calculation module 3 is used for setting the interval setting mileage of the displacement sensor, obtaining the current position of the piston of the clutch booster, calculating the residual abrasion loss, the driving mileage of the unit abrasion loss and the residual endurance mileage when judging the abrasion loss of the clutch, and outputting the residual abrasion loss, the driving mileage of the unit abrasion loss and the residual endurance mileage when reaching the threshold value of the automobile mileage; the wear amount and range calculation module 3 includes:
the clutch wear current position recording unit 3.1 is used for setting the interval setting mileage M of the displacement sensor and obtaining the current position B of the clutch booster piston n And at the current position B of the clutch booster piston n With last acquired clutch booster piston position B n-1 Comparative B n ≤B n-1 At this time, the clutch wear is determined and the current position B of the clutch booster piston is recorded n ；
A residual abrasion loss calculating unit 3.2 for calculating the residual abrasion loss as A-B n Calculating the residual abrasion rate to be 1- (A-B) n ) Δo, where Δo is the clutch wear threshold;
a unit wear amount travel distance calculating unit 3.3 for calculating a travel distance C of the unit wear amount n ＝M/(B n-1 -B n )；
The cruising mileage calculation unit 3.4 is used for calculating the remaining cruising mileage as [ delta O- (A-B) n )]×C n ；
The mileage threshold value judging unit 3.5 is used for judging whether the mileage threshold value of the automobile is an integral multiple of the mileage threshold value;
and the abrasion loss and cruising output unit 3.6 is used for outputting the residual abrasion loss, the driving mileage of the unit abrasion loss and the residual cruising mileage when the threshold value of the automobile mileage is integer multiple.
Although the present invention has been described in detail by way of preferred embodiments with reference to the accompanying drawings, the present invention is not limited thereto. Various equivalent modifications and substitutions may be made in the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and it is intended that all such modifications and substitutions be within the scope of the present invention/be within the scope of the present invention as defined by the appended claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. A method for predicting clutch life of a displacement sensor-equipped booster, comprising the steps of:
s1, setting a displacement sensor to detect the position of a clutch booster piston through an induction pull rod;
s2, recording the initial position of a clutch booster piston acquired by a displacement sensor;
s3, setting mileage at intervals of a displacement sensor, acquiring the current position of a piston of a clutch booster, calculating the residual abrasion loss, the driving mileage of unit abrasion loss and the residual cruising mileage when judging abrasion of the clutch, and outputting the residual abrasion loss, the driving mileage of unit abrasion loss and the residual cruising mileage when reaching a threshold value of the automobile mileage;
the specific steps of the step S2 are as follows:
s21, after the whole vehicle is off line, carrying out an electrifying test;
s22, setting a displacement sensor to acquire the position of a clutch booster piston for 1 time in an initial time period T at each interval time period delta T to obtain n position values, wherein n=T/delta T;
s23, taking the minimum value of the n position values as a position A of a clutch booster piston;
the specific steps of the step S3 are as follows:
s31, setting a displacement sensor interval setting mileage M, and obtaining the current position B of a clutch booster piston n And at the current position B of the clutch booster piston n With last acquired clutch booster piston position B n-1 Comparative B n ≤B n-1 At this time, the clutch wear is determined and the current position B of the clutch booster piston is recorded n ；
S32, calculating the residual abrasion loss as A-B n Calculating the residual abrasion rate to be 1- (A-B) n ) Δo, where Δo is the clutch wear threshold;
s33, calculating the running mileage C of the unit abrasion loss n =M/（B n-1 -B n ）；
S34, calculating the remaining cruising mileage as [ delta O- (A-B) n ）]×C n ；
S35, judging whether the vehicle mileage threshold value is an integral multiple of the vehicle mileage threshold value;
if yes, go to step S36;
if not, returning to the step S31;
s36, outputting the residual abrasion loss, the driving mileage of the unit abrasion loss and the residual cruising mileage;
in step S31, when the clutch is in a disengaged state and the clutch piston is thermally expanded, B n ＞B n-1 At this time, B n The value is not saved;
in step S32, when A-B n When delta O is larger than delta O, giving out an overrun alarm of clutch wear;
in step S33, the mileage C of the previous p times of unit abrasion loss is calculated 1 ，C 2 ……C p ；
Set c= (C 1 +C 2 ……C p ）/p。
2. The clutch life prediction method of a displacement sensor-equipped booster according to claim 1, wherein step S1 comprises the specific steps of:
s11, one end of the induction pull rod is connected with a clutch booster piston;
s12, arranging the other end of the induction pull rod to penetrate through the displacement sensor and slide along the cavity inside the displacement sensor;
s13, setting a displacement sensor to acquire different positions of the induction pull rod and the clutch booster piston according to different inductance values generated by the displacement sensor and the induction pull rod.
3. A clutch life prediction system with a displacement sensor booster, comprising:
the clutch booster piston position detection module (1) is used for setting a displacement sensor to detect the position of the clutch booster piston through the induction pull rod;
the initial position recording module (2) is used for recording the initial position of the clutch booster piston acquired by the displacement sensor;
the abrasion loss and cruising mileage calculation module (3) is used for setting the interval setting mileage of the displacement sensor, obtaining the current position of the piston of the clutch booster, calculating the residual abrasion loss, the driving mileage of the unit abrasion loss and the residual cruising mileage when judging the abrasion loss of the clutch, and outputting the residual abrasion loss, the driving mileage of the unit abrasion loss and the residual cruising mileage when reaching the threshold value of the automobile mileage;
the initial position recording module (2) includes:
the power-on test starting unit (2.1) is used for carrying out power-on test after the whole vehicle is off line;
an initial position acquisition unit (2.2) for setting the displacement sensor to acquire the position of the clutch booster piston 1 time every interval period Δt within an initial period T, to obtain n position values, where n=t/Δt;
an initial position setting unit (2.3) for taking the minimum value of the n position values as a position A of the clutch booster piston;
the abrasion loss and endurance mileage calculation module (3) comprises:
a clutch wear current position recording unit (3.1) for setting a displacement sensor interval setting mileage M and acquiring a current position B of a clutch booster piston n And at the current position B of the clutch booster piston n With last acquired clutch booster piston position B n-1 Comparative B n ≤B n-1 At this time, the clutch wear is determined and the current position B of the clutch booster piston is recorded n ；
A residual abrasion amount calculation unit (3.2) for calculating the residual abrasion amount as A-B n Calculating the residual abrasion rate to be 1- (A-B) n ) Δo, where Δo is the clutch wear threshold;
a unit wear amount travel distance calculation unit (3.3) for calculating a travel distance C of the unit wear amount n =M/（B n-1 -B n ）；
A cruising mileage calculation unit (3.4) for calculating the remaining cruising mileage as [ delta O- (A-B) n ）]×C n ；
A mileage threshold value judging unit (3.5) for judging whether the vehicle mileage threshold value reaches an integer multiple;
and the abrasion loss and cruising output unit (3.6) is used for outputting the residual abrasion loss, the driving mileage of the unit abrasion loss and the residual cruising mileage when the threshold value of the automobile mileage is integer multiple.
4. A clutch life prediction system with displacement sensor booster according to claim 3, characterized in that the clutch booster piston position detection module (1) comprises:
the induction pull rod piston connecting unit (1.1) is used for arranging one end of the induction pull rod to be connected with the clutch booster piston;
the induction pull rod displacement sensor connecting unit (1.2) is used for arranging the other end of the induction pull rod to penetrate through the displacement sensor and slide along the inner cavity of the displacement sensor;
and the displacement sensor detection unit (1.3) is used for setting the displacement sensor to acquire different positions of the induction pull rod and the clutch booster piston according to different inductance values generated by the displacement sensor and the induction pull rod.
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| CN113586635B (en) * | 2021-07-30 | 2023-01-03 | 的卢技术有限公司 | Brake pad wear monitoring active early warning system, method, vehicle and storage medium |
| CN115217874B (en) * | 2022-07-14 | 2023-06-20 | 东风商用车有限公司 | Clutch wear life prediction system and method |
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