CN104807634A - Gearbox parking function offline testing method and device - Google Patents
Gearbox parking function offline testing method and device Download PDFInfo
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- CN104807634A CN104807634A CN201510205656.1A CN201510205656A CN104807634A CN 104807634 A CN104807634 A CN 104807634A CN 201510205656 A CN201510205656 A CN 201510205656A CN 104807634 A CN104807634 A CN 104807634A
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- wheel box
- speed
- parking function
- parking
- differential mechanism
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Abstract
The invention discloses a gearbox parking function offline testing method and device. The device comprises a motor, a flying wheel, a left connecting semi-shaft, an automatic gearbox, a right connecting semi-shaft and a fixing plate which are successively connected in the horizontal direction; the left connecting semi-shaft is provided with a revolution speed sensor; the other end of the revolution speed sensor is connected with a display dial plate. The display dial plate is cooperated with the revolution speed sensor to detect a differential mechanism, so that the gearbox parking function offline detection can be achieved, and the complete machine with the parking failure problem is prevented from entering the market.
Description
Technical field
The invention belongs to wheel box parking function detection field, be specifically related to wire testing method and device under a kind of wheel box parking function.
Background technology
Parking system be ensure vehicle reliably rest in be less than certain ramp be integrated in automatic gear-box inside, primarily of the pure mechanical system that the parts such as parking gear, ratchet, catanator are formed.
When starting parking, the parking speed of a motor vehicle requires under car load vehicle velocity V:
During V>b Km/h, park pawl can not embed parking gear, can not realize wheel box parking function;
During a Km/h<V≤b Km/h, park pawl can embed parking gear, can realize parking and also can not realize;
During V<a Km/h, park pawl must embed parking gear, must realize wheel box parking function.
Wherein, b is the critical speed that vehicle realizes when parking was lost efficacy
Existing technical conditions do not have method of testing and bench frame apparatus, this performance verification is completed without equipment, and wheel box parking function cannot go the detection wheel box that can throw into question to come into the market by equipment, causes safety problem, so contrive equipment can wheel box parking function to the requirement of the speed of a motor vehicle.
Summary of the invention
The object of this invention is to provide wire testing method and device under a kind of wheel box parking function, whether meet design requirement to the automatic gear-box parking speed of a motor vehicle function rolled off the production line can be tested, solve volume production and to roll off the production line test problem.
To achieve these goals, the invention provides wire testing method under a kind of wheel box parking function, comprise the following steps: wheel box is adjusted to neutral gear by (1), in setting wheel box, differential mechanism rotating speed is set to definite value; (2) cut off differential mechanism power supply, manual adjustments wheel box parking system is park mode, judges whether wheel box parking function lost efficacy; (3) detect differential mechanism rotating speed, convert the rotating speed after detecting to the speed of a motor vehicle by formula V=0.377nr, in formula, n is differential mechanism rotating speed, and r is detected wheel of vehicle radius; (4) speed of a motor vehicle of measurement and parking are set the speed of a motor vehicle to compare, judge whether wheel box parking function lost efficacy.
Preferably, before step (1), also comprise and regulate parking system in wheel box to be in N shelves, judge whether wheel box is in neutral gear, if then carry out step (1), then return if not and readjust parking system.
Preferably, in step (1), described definite value is higher than setting speed differential mechanism tachometer value, and described setting speed is the critical rotary speed when wheel box wheel box parking function lost efficacy.
Preferably, in step (2), regulating parking system to be park mode is manually opened parking handle.
Preferably, in step (4), critical speed when the described setting speed of a motor vehicle is the inefficacy of wheel box parking function.
Preferably, in step (4), when the speed of a motor vehicle measured is less than the setting speed of a motor vehicle, judge that wheel box parking function is effective.
The present invention also provides a kind of wheel box parking function to roll off the production line proving installation, comprise motor, flywheel, left connection semiaxis, automatic gear-box, right connection semiaxis and shaft collar that horizontal direction connects in turn, wherein, described left connection semiaxis is provided with speed probe, and the described speed probe other end connects display dial.
Preferably, be provided with differential mechanism in described automatic gear-box, described differential mechanism left end connects left connection semiaxis, and described differential mechanism right-hand member connects right connection semiaxis, and wherein, right connection semiaxis is fixed on shaft collar, and left connection semiaxis can rotate with flywheel.
Preferably, also comprise the parking system be located in wheel box, described parking system is connected with output shaft, and output shaft is by gear driven differential mechanism.
Preferably, single-chip microcomputer is preinstalled with in described display dial.
Effect of the present invention is: adopt scheme of the present invention, by detecting the rotating speed of differential mechanism, the rotating speed recorded by differential mechanism and setting speed compare, and then the detection realized wheel box parking function, achieve the function of automatic gear-box parking function off-line test, prevent the complete machine of parking Problem of Failure from coming into the market.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the present invention, for those of ordinary skill in the art, other accompanying drawing can also be obtained according to these accompanying drawings.
The main flow chart of wire testing method under a kind of wheel box parking function that Fig. 1 provides for the invention process;
Fig. 2 is the process flow diagram of wire testing method under a kind of wheel box parking function provided by the invention;
Fig. 3 is that a kind of wheel box parking function provided by the invention rolls off the production line the structural representation of proving installation;
In figure: 1-shaft collar, the right connection semiaxis of 2-, 3-differential mechanism, 4-automatic gear-box, 5-parking system, the left connection semiaxis of 6-, 7-speed probe, 8-flywheel, 9-motor, 10-display dial.
Embodiment
In order to make those skilled in the art understand technical scheme of the present invention better, below in conjunction with accompanying drawing, the present invention is further detailed.
As shown in Figure 1 and Figure 2, for wire testing method under a kind of wheel box parking function provided by the invention, comprise the following steps: S1: wheel box is adjusted to neutral gear, in setting wheel box, differential mechanism rotating speed is definite value, wherein, wheel box being set to neutral gear object is when preventing test, damage is caused to wheel box, differential mechanism in wheel box is set to definite value, propulsion system can be installed additional realize, in the present embodiment, described differential mechanism rotating speed definite value is the tachometer value higher than differential mechanism during setting speed, and described setting speed is the critical rotary speed when wheel box wheel box parking function lost efficacy.
S2: cut off differential mechanism power supply, manual adjustments wheel box parking system park mode, judges whether wheel box parking function lost efficacy.Wherein, manual adjustments wheel box parking system park mode can be and pulls parking handle, is linked into parking shelves, now, if the parking speed of a motor vehicle declines, carries out next step and detects, if the parking speed of a motor vehicle is unaffected, then judge that parking function lost efficacy.
S3: detect differential mechanism rotating speed, convert the rotating speed after detecting to the speed of a motor vehicle by formula V=0.377nr, in formula, n is differential mechanism rotating speed, and r is detected wheel of vehicle radius.According to different automobile types, the parking speed of a motor vehicle is different, and wherein, the setting speed in step S1 also calculates by this formula.
S4: the speed of a motor vehicle of measurement and parking are set the speed of a motor vehicle and compares, judges that whether wheel box parking function is effective.Wherein, critical speed when the described setting speed of a motor vehicle is the inefficacy of wheel box parking function.During test, when the speed of a motor vehicle measured is less than the setting speed of a motor vehicle, judge that wheel box parking function is effective.All the other situations, during as being greater than the setting speed of a motor vehicle or equaling the setting speed of a motor vehicle, judge that parking function is invalid.
Further, before step S1, also comprise and regulate parking system in wheel box to be in N shelves, judge whether wheel box is in neutral gear, if then carry out step S1, then return if not and readjust parking system.
It should be noted that, in step sl, described definite value is higher than setting speed differential mechanism tachometer value, and described setting speed is the critical rotary speed when wheel box wheel box parking function lost efficacy.
The embodiment of the present invention also disclosed a kind of wheel box parking function and to roll off the production line proving installation, as shown in Figure 3, comprise motor 9, flywheel 8, left connection semiaxis 6, automatic gear-box 4, right connection semiaxis 2 and shaft collar 1 that horizontal direction connects in turn, wherein, described left connection semiaxis is provided with speed probe, and the described speed probe other end connects display dial 10.In the present embodiment, motor 9 is located on motor base, and motor 9 connects on the left of automatic gear-box 4 by flywheel with the left semiaxis that is connected, and left connection semiaxis is transmission input shaft, and right connection semiaxis connects on the right side of wheel box, and the right connection semiaxis other end is fixed on shaft collar 1.
Concrete, differential mechanism 3 is provided with in wheel box, described differential mechanism 3 left end connects left connection semiaxis, described differential mechanism right-hand member connects right connection semiaxis, and right-hand member is fixed on shaft collar by right connection semiaxis, wherein, left connection semiaxis can rotate with flywheel, wherein also comprise the parking system 5 be located in wheel box 3, parking system 5 is connected with output shaft, and output shaft is by gear driven differential mechanism 3.
It should be noted that, in described display dial, be preinstalled with single-chip microcomputer, described single-chip microcomputer executive routine, engine speed can be changed into the speed of a motor vehicle and be presented on display dial screen, realizing by formula V=0.377nr.
More specifically, when measuring automatic gear-box parking function, first parking system 5 is set and is in N shelves, hand rotation automatic gear-box 4 differential mechanism end checks whether as neutral position state, if differential mechanism end rotatably, illustrate that now wheel box is in neutral position state, then starter motor 9, motor 9 drives differential mechanism 3 to rotate by flywheel 8 and left connection semiaxis 6, speed probe is fixed on motor base, monitor the rotating speed of left connection semiaxis, by single-chip microcomputer setting program, the left connection semiaxis rotating speed that sensor 7 reads is changed into the car load speed of a motor vehicle that wheel box mates, the speed of a motor vehicle is presented on display dial.Wherein conversion formula: in V=0.377nr formula, n is the rotating speed (rpm) of differential mechanism, and r is detected wheel of vehicle radius (m), in the present embodiment, the radius of wheel that detected wheel of vehicle radius mates for wheel box, V is the car load speed of a motor vehicle (km/h).
Motor loads rotating speed from 0, stabilizing speed is more than certain speed of a motor vehicle of more than b km/h, after reaching, motor 9 stops, differential mechanism 3 relies on the inertia of flywheel to be rotated further, the effect of flywheel is protection motor, under preventing parking operating mode, motor 9 continues accelerate and burn out motor, manual operation parking handle, control realization parking function, park pawl is made to enter in parking gear, until realize parking, record the speed of a motor vehicle c that now display dial 10 shows, the speed of a motor vehicle is now the parking speed of a motor vehicle, if parking speed of a motor vehicle c>b now or c=b, then parking function lost efficacy, if c<b, then parking function realizes successfully.
Mode above only by illustrating describes some one exemplary embodiment of the present invention, undoubtedly, for those of ordinary skill in the art, when without departing from the spirit and scope of the present invention, can revise described embodiment by various different mode.Therefore, above-mentioned accompanying drawing is illustrative with being described in essence, should not be construed as the restriction to the claims in the present invention protection domain.
Claims (10)
1. a wire testing method under wheel box parking function, is characterized in that: comprise the following steps:
(1) wheel box is adjusted to neutral gear, in setting wheel box, differential mechanism rotating speed is set to definite value;
(2) cut off differential mechanism power supply, manual adjustments wheel box parking system is park mode, judges whether wheel box parking function lost efficacy;
(3) detect differential mechanism rotating speed, convert the rotating speed after detecting to the speed of a motor vehicle by formula V=0.377nr, in formula, n is differential mechanism rotating speed, and r is detected wheel of vehicle radius;
(4) speed of a motor vehicle of measurement and parking are set the speed of a motor vehicle to compare, judge whether wheel box parking function lost efficacy.
2. wire testing method under wheel box parking function as claimed in claim 1, it is characterized in that: before step (1), also comprise and regulate parking system in wheel box to be in N shelves, judge whether wheel box is in neutral gear, if then carry out step (1), then return if not and readjust parking system.
3. wire testing method under wheel box parking function as claimed in claim 2, it is characterized in that: in step (1), described definite value is higher than setting speed differential mechanism tachometer value, and described setting speed is the critical rotary speed when wheel box wheel box parking function lost efficacy.
4. wire testing method under wheel box parking function as claimed in claim 1, it is characterized in that: in step (2), regulating parking system to be park mode is manually opened parking handle.
5. wire testing method under wheel box parking function as claimed in claim 1, is characterized in that: in step (4), critical speed when the described setting speed of a motor vehicle is the inefficacy of wheel box parking function.
6. wire testing method under wheel box parking function as claimed in claim 5, is characterized in that: in step (4), when the speed of a motor vehicle measured is less than the setting speed of a motor vehicle, judges that wheel box parking function is effective.
7. a wheel box parking function rolls off the production line proving installation, it is characterized in that: comprise motor, flywheel, left connection semiaxis, automatic gear-box, right connection semiaxis and shaft collar that horizontal direction connects in turn, wherein, described left connection semiaxis is provided with speed probe, and the described speed probe other end connects display dial.
8. wheel box parking function as claimed in claim 7 rolls off the production line proving installation, it is characterized in that: in described automatic gear-box, be provided with differential mechanism, described differential mechanism left end connects left connection semiaxis, described differential mechanism right-hand member connects right connection semiaxis, wherein, right connection semiaxis is fixed on shaft collar, and left connection semiaxis can rotate with flywheel.
9. wheel box parking function as claimed in claim 8 rolls off the production line proving installation, and it is characterized in that: also comprise the parking system be located in wheel box, described parking system is connected with output shaft, and output shaft passes through gear driven differential mechanism.
10. wheel box parking function as claimed in claim 7 rolls off the production line proving installation, it is characterized in that: be preinstalled with single-chip microcomputer in described display dial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510205656.1A CN104807634A (en) | 2015-04-27 | 2015-04-27 | Gearbox parking function offline testing method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510205656.1A CN104807634A (en) | 2015-04-27 | 2015-04-27 | Gearbox parking function offline testing method and device |
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| CN104807634A true CN104807634A (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510205656.1A Pending CN104807634A (en) | 2015-04-27 | 2015-04-27 | Gearbox parking function offline testing method and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067284A (en) * | 2020-09-09 | 2020-12-11 | 广州汽车集团股份有限公司 | Off-line detection method and device for automobile parking mechanism |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889379A (en) * | 2011-07-21 | 2013-01-23 | 现代自动车株式会社 | Parking brake system |
| CN104002805A (en) * | 2013-02-25 | 2014-08-27 | 上海通用汽车有限公司 | Automatic parking method, automatic transmission and vehicle |
| CN204228429U (en) * | 2014-12-09 | 2015-03-25 | 安徽江淮汽车股份有限公司 | For detecting Comprehensive Testing Facility and the system of parking performance |
| CN204666361U (en) * | 2015-04-27 | 2015-09-23 | 安徽江淮汽车股份有限公司 | A kind of wheel box parking function rolls off the production line proving installation |
-
2015
- 2015-04-27 CN CN201510205656.1A patent/CN104807634A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889379A (en) * | 2011-07-21 | 2013-01-23 | 现代自动车株式会社 | Parking brake system |
| CN104002805A (en) * | 2013-02-25 | 2014-08-27 | 上海通用汽车有限公司 | Automatic parking method, automatic transmission and vehicle |
| CN204228429U (en) * | 2014-12-09 | 2015-03-25 | 安徽江淮汽车股份有限公司 | For detecting Comprehensive Testing Facility and the system of parking performance |
| CN204666361U (en) * | 2015-04-27 | 2015-09-23 | 安徽江淮汽车股份有限公司 | A kind of wheel box parking function rolls off the production line proving installation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067284A (en) * | 2020-09-09 | 2020-12-11 | 广州汽车集团股份有限公司 | Off-line detection method and device for automobile parking mechanism |
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Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant before: Anhui Jianghuai Automotive Co., Ltd. |
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Application publication date: 20150729 |