CN104713725A - Automobile automatic transmission P-gear parking critical entry car speed test measuring system - Google Patents
Automobile automatic transmission P-gear parking critical entry car speed test measuring system Download PDFInfo
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- CN104713725A CN104713725A CN201510157947.8A CN201510157947A CN104713725A CN 104713725 A CN104713725 A CN 104713725A CN 201510157947 A CN201510157947 A CN 201510157947A CN 104713725 A CN104713725 A CN 104713725A
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Abstract
The invention discloses an automobile automatic transmission P-gear parking critical entry car speed test measuring system. The automobile automatic transmission P-gear parking critical entry car speed test measuring system comprises a mechanical system and a measure and control system; the mechanical system comprises an iron foundation, a to-be-tested automatic transmission, a torque rotation speed sensor, a driving motor, a gear shifter, a gear shifting pull cable, a transmission installation base frame, a half shaft, a half shaft connecting disc, a sensor base, a coupler, a motor base and a gear shifter base; the measure and control system comprises a computer, a motor controller and a data collector. By adopting the automobile automatic transmission P-gear parking critical entry car speed test measuring system, a P-gear parking entry car speed can be accurately measured under an analog automatic transmission car test working condition, so that the test reliability and the test accuracy of the automatic transmission P-gear parking critical entry car speed can be improved.
Description
Technical field
The invention belongs to car test techniqes field, particularly relate to automatic transmission P in automobile dynamic system and keep off parking performance test measuring system, more particularly, relate to a kind of automatic gearbox P and keep off parking critical income speed of a motor vehicle testing & measuring system.
Background technology
Along with the development of vehicle transmission technology, automatic transmission, due to features such as its processing ease, driving comfort, smooth gear shifting, has become an important development direction of automotive transmission.P keeps off the important component part of halting mechanism as automatic transmission, P keeps off parking and is made up of spreadet spreadet wheel, lock pin ratchet and a set of control device, spreadet spreadet wheel is connected with transmission output shaft under normal circumstances, and lock pin ratchet and control device are fixed on case of transmission.When automatic transmission is not linked into P gear, control device controls lock pin ratchet and spreadet spreadet wheel and is in released state, and spreadet spreadet wheel can rotate arbitrarily along with transmission output shaft; When automatic transmission is linked into P gear, control device makes lock pin ratchet be combined with spreadet spreadet wheel, thus make together with transmission output shaft is locked at case of transmission rigidity, realizes long-time stable with the automobile guaranteeing to carry automatic transmission and park, avoid slipping car phenomenon.But, P can be realized smoothly in order to ensure automatic transmission under low speed of a motor vehicle limiting condition condition and keep off parking, often need to keep off the test that parking function carries out the critical income speed of a motor vehicle, to verify correctness and the reliability of its design parameter to automatic transmission P newly developed.
At present, test automatic gearbox P being kept off to the critical income speed of a motor vehicle of parking mainly adopts car load working condition tests method, test condition is not only subject to the restriction of automobile research progress, and test figure is repeated and reliability is poor, and cannot realize in the automatic transmission model machine development phase test and validation that P keeps off parking performance, test poor in timeliness.Therefore, how to simulate automatic transmission complete vehicle test operating mode on stand under, the critical income speed of a motor vehicle of parking is kept off to its P and carry out test measurement, also there is no the report of correlation test measurement mechanism at present both at home and abroad.Therefore, need a kind of automatic gearbox P of design badly and keep off parking critical income speed of a motor vehicle test measurement mechanism, the P that can realize under accurate simulation automatic transmission complete vehicle test operating mode keeps off the critical income speed of a motor vehicle test of parking, and this is significant for the shortening automatic transmission construction cycle.
Summary of the invention
For the deficiencies in the prior art, a kind of automatic gearbox P is the object of the present invention is to provide to keep off parking critical income speed of a motor vehicle testing & measuring system, under simulation automatic transmission complete vehicle test operating mode, the critical income speed of a motor vehicle of parking can be kept off to its P and carry out Measurement accuracy, thus improve test reliability and the degree of accuracy that automatic transmission P keeps off the critical income speed of a motor vehicle of parking, the experimental study keeping off the critical income speed of a motor vehicle of parking for automatic transmission P provides powerful support.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is such: a kind of automatic gearbox P keeps off parking critical income speed of a motor vehicle testing & measuring system, it is characterized in that: comprise mechanical system and TT&C system;
Described mechanical system comprises iron ground, automatic transmission to be measured, torque rotary speed sensor, drive motor, selector, gear-shifting inhaul cable, variator installing base frame, semiaxis, semiaxis terminal pad, sensor base, shaft coupling, motor base and selector base; Described automatic transmission to be measured is fixed on iron ground by variator installing base frame, selector is fixed on iron ground by selector base, described selector keeps off topworks by gear-shifting inhaul cable with the P of automatic transmission to be measured and is connected, and the installation site of selector, gear-shifting inhaul cable and automatic transmission to be measured and state consistent with real vehicle, the P that can realize automatic transmission to be measured by handling selector keeps off income and stay out control; Described torque rotary speed sensor is fixed on iron ground by sensor base, automatic transmission side half to be measured axis hole is connected with semiaxis one end, the semiaxis other end is connected with torque rotary speed sensor side projecting shaft by semiaxis terminal pad, and torque rotary speed sensor opposite side projecting shaft is connected with the output shaft of drive motor side by shaft coupling I; Described drive motor is rigidly fixed on iron ground by motor base;
Described TT&C system comprises computing machine, electric machine controller and data acquisition unit; In process of the test, computing machine is by motor controller controls drive motor duty; Torque rotary speed sensor real-time continuous measures torque on semiaxis, tach signal, data acquisition unit continuous Real-time Collection torque rotary speed sensor signal, and the signal input computing machine will collected in real time; Computing machine processes in real time to the torque on semiaxis, tach signal, and simultaneous computer controls mechanical system population parameter simulation car load automatic transmission P and keeps off critical income speed of a motor vehicle operating condition of test.
Further, described mechanical system also comprises locking shaft, locking axle bed, and one end of described locking shaft is connected with half axis hole of automatic transmission opposite side, and the other end is fixed on iron ground by locking axle bed, thus realizes the monolateral differential mechanism locking of automatic transmission.
Further, described mechanical system also comprises inertial flywheel case, and described inertial flywheel case is fixed on iron ground, and its inertial flywheel axle is connected with the output shaft of drive motor opposite side by shaft coupling II.
Compared with prior art, tool of the present invention has the following advantages:
1, testing & measuring system simplicity of design, mounting and adjusting is convenient, and in pilot system, automatic transmission installation connected mode to be measured is completely consistent with its real vehicle, thus ensure that feasibility and the reliability of pilot system measurement result.
2, utilize in pilot system and measure rotating speed and the torque numerical value of semiaxis with the rigidly connected torque rotary speed sensor of semiaxis, to eliminate in test unit miscellaneous part to the impact of test findings, thus obtain test figure more accurately.
3, pilot system can arrange operating condition of test flexibly by control algolithm special in computing machine, is convenient to simulate the different tests operating mode that automatic transmission P keeps off parking.
4, pilot system can record rotating speed and the torque of semiaxis simultaneously, the critical income speed of a motor vehicle can be obtained by simply converting, can obtain the Changing Pattern of moment of torsion on semiaxis when P keeps off income, thus the reliability design keeping off halting mechanism for automatic transmission P provides test basis simultaneously.
Accompanying drawing explanation
Fig. 1 is that in embodiment 1, automatic transmission P keeps off parking critical income speed of a motor vehicle testing & measuring system structural drawing.
Fig. 2 is that automatic transmission P keeps off parking critical income speed of a motor vehicle test measuring principle block diagram.
Fig. 3 is that embodiment 2 automatic transmission P keeps off parking critical income speed of a motor vehicle testing & measuring system structural drawing.
In figure: 1-iron ground; 2-variator installing base frame; 3-automatic transmission to be measured; 4-locking shaft; 5-locking axle bed; 6-semiaxis; 7-semiaxis terminal pad; 8-torque rotary speed sensor; 9-sensor base; 10-shaft coupling I; 11-drive motor; 12-motor base; 13-electric machine controller; 14-selector; 15-selector base; 16-gear-shifting inhaul cable; 17-data acquisition unit; 18-computing machine; 19-shaft coupling II; 20-inertial flywheel case.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment 1: see Fig. 1, Fig. 2, a kind of automatic gearbox P keeps off parking critical income speed of a motor vehicle testing & measuring system, comprises mechanical system and TT&C system.
Described mechanical system comprises iron ground 1, automatic transmission to be measured 3, drive motor 11, torque rotary speed sensor 8, selector 14, gear-shifting inhaul cable 16, variator installing base frame 2, semiaxis 6, semiaxis terminal pad 7, sensor base 9, shaft coupling I10, motor base 12 and selector base 15.Described variator installing base frame 2 is rigidly fixed on iron ground 1 by bolt, and automatic transmission 3 to be measured is arranged on the side of variator installing base frame 2 by bolt rigidity.
Automatic transmission 3(to be measured is inserted away from variator installing base frame 2 by spline tooth in described semiaxis 6 one end) side half axis hole, semiaxis 6 other end also inserts semiaxis terminal pad 7 side internal splined hole by spline tooth, realizes being rigidly connected; Semiaxis terminal pad 7 is rigidly connected torque rotary speed sensor 8 side projecting shaft, and torque rotary speed sensor 8 opposite side projecting shaft is rigidly connected by shaft coupling I10 the output shaft of drive motor 11 side.Described drive motor 11 is rigidly fixed on motor base 12 by bolt, and motor base 12 is rigidly fixed on iron ground 1; Described torque rotary speed sensor 8 is rigidly fixed in sensor base 9, and sensor base 9 is rigidly fixed on iron ground 1 by bolt.
Described selector 14 is bolted on selector base 15, and selector base 15 is arranged on iron ground 1 by bolt rigidity; The P that selector 14 connects automatic transmission 3 to be measured by real vehicle gear-shifting inhaul cable 16 keeps off topworks, and the installation site of selector 14, gear-shifting inhaul cable 16 and automatic transmission to be measured 3 and state consistent with real vehicle, the P that can realize automatic transmission 3 to be measured by handling selector 14 keeps off income and stay out control.
Described TT&C system comprises computing machine 18, electric machine controller 13 and data acquisition unit 17; Described computing machine 18 controls drive motor 11 duty by electric machine controller 13; Described torque rotary speed sensor 8 real-time continuous in process of the test measures torque on semiaxis 6, tach signal; The torque that described data acquisition unit 17 real-time collection and continual collection torque rotary speed sensor 8 exports, tach signal, and import computing machine 18 in real time into, the rotating speed of semiaxis 6 is converted into the speed of a motor vehicle and shows in real time and record by computing machine 18.During test, computing machine 18(is by special control software design) control realization mechanical system population parameter simulation car load automatic transmission P keeps off critical income speed of a motor vehicle operating condition of test, comprises the speed of a motor vehicle, retarded velocity, torque etc.; When computing machine 18 monitor torque on semiaxis 6, tach signal reach income P blend stop part time, testing crew handles the P gear of the gear level income automatic transmission 3 to be measured of selector 14, when automatic transmission 3 to be measured P keep off income success, then off-test and stop test; Described computing machine 18 is the test figure such as continuous Real-time Collection, display and record semiaxis 6 rotating speed, torque, the speed of a motor vehicle in whole process of the test.
This test unit can be tested for different model automatic transmission, only need install the hole that is located by connecting and just can reach test objective by processing different model automatic transmission in variator installing base frame 2.
When the P gear spreadet spreadet wheel of automatic transmission 3 to be measured is not positioned on differential carrier, the mechanical system of described testing & measuring system also comprises locking shaft 4, locking axle bed 5, described locking shaft 4 one end is connected with half axis hole of automatic transmission 3 opposite side to be measured, and locking shaft 4 other end is fixed on iron ground 1 by locking axle bed 5; During concrete assembling, automatic transmission 3 side half to be measured axis hole is inserted by spline tooth in locking shaft 4 one end, the other end inserts the internal splined hole of locking axle bed 5 by spline tooth, and locking axle bed 5 is bolted on iron ground 1, realize the monolateral differential mechanism locking of automatic transmission 3 to be measured, thus guarantee that differential mechanism can one-sidedly load.
Embodiment 2, see Fig. 3, as different from Example 1, the mechanical system of described testing & measuring system also comprises inertial flywheel case 20, described inertial flywheel case 20 is fixed on iron ground 1, and its inertial flywheel axle is connected with the output shaft of drive motor 11 opposite side by shaft coupling II 19; The inertia of mass flywheel case can adjust according to real vehicle equivalent inertia, realizes the simulation of complete vehicle quality by installing different mass flywheel.
Finally it should be noted that, above embodiment is only in order to illustrate technical scheme of the present invention but not restriction technologies scheme, those of ordinary skill in the art is to be understood that, those are modified to technical scheme of the present invention or equivalent replacement, and do not depart from aim and the scope of the technical program, all should be encompassed in the middle of right of the present invention.
Claims (3)
1. automatic gearbox P keeps off a parking critical income speed of a motor vehicle testing & measuring system, it is characterized in that: comprise mechanical system and TT&C system;
Described mechanical system comprises iron ground, automatic transmission to be measured, torque rotary speed sensor, drive motor, selector, gear-shifting inhaul cable, variator installing base frame, semiaxis, semiaxis terminal pad, sensor base, shaft coupling, motor base and selector base; Described automatic transmission to be measured is fixed on iron ground by variator installing base frame, selector is fixed on iron ground by selector base, described selector keeps off topworks by gear-shifting inhaul cable with the P of automatic transmission to be measured and is connected, and the installation site of selector, gear-shifting inhaul cable and automatic transmission to be measured and state consistent with real vehicle, the P that can realize automatic transmission to be measured by handling selector keeps off income and stay out control; Described torque rotary speed sensor is fixed on iron ground by sensor base, automatic transmission side half to be measured axis hole is connected with semiaxis one end, the semiaxis other end is connected with torque rotary speed sensor side projecting shaft by semiaxis terminal pad, and torque rotary speed sensor opposite side projecting shaft is connected with the output shaft of drive motor side by shaft coupling I; Described drive motor is rigidly fixed on iron ground by motor base;
Described TT&C system comprises computing machine, electric machine controller and data acquisition unit; In process of the test, computing machine is by motor controller controls drive motor duty; Torque rotary speed sensor real-time continuous measures torque on semiaxis, tach signal, data acquisition unit continuous Real-time Collection torque rotary speed sensor signal, and the signal input computing machine will collected in real time; Computing machine processes in real time to the torque on semiaxis, tach signal, and simultaneous computer controls mechanical system population parameter simulation car load automatic transmission P and keeps off critical income speed of a motor vehicle operating condition of test.
2. a kind of automatic gearbox P according to claim 1 keeps off parking critical income speed of a motor vehicle testing & measuring system, it is characterized in that: described mechanical system also comprises locking shaft, locking axle bed, one end of described locking shaft is connected with half axis hole of automatic transmission opposite side, the other end is fixed on iron ground by locking axle bed, thus realizes the monolateral differential mechanism locking of automatic transmission.
3. a kind of automatic gearbox P according to claim 1 keeps off parking critical income speed of a motor vehicle testing & measuring system, it is characterized in that: described mechanical system also comprises inertial flywheel case, described inertial flywheel case is fixed on iron ground, and its inertial flywheel axle is connected with the output shaft of drive motor opposite side by shaft coupling II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510157947.8A CN104713725B (en) | 2015-04-03 | 2015-04-03 | A kind of automatic gearbox P keeps off the critical income speed testing ＆ measuring system of parking |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510157947.8A CN104713725B (en) | 2015-04-03 | 2015-04-03 | A kind of automatic gearbox P keeps off the critical income speed testing ＆ measuring system of parking |
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| Publication Number | Publication Date |
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| CN104713725A true CN104713725A (en) | 2015-06-17 |
| CN104713725B CN104713725B (en) | 2017-09-22 |
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| CN201510157947.8A Expired - Fee Related CN104713725B (en) | 2015-04-03 | 2015-04-03 | A kind of automatic gearbox P keeps off the critical income speed testing ＆ measuring system of parking |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113008553A (en) * | 2021-04-25 | 2021-06-22 | 重庆理工大学 | New forms of energy reduction gear impact endurance test device |
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| JP2005127904A (en) * | 2003-10-24 | 2005-05-19 | Fuji Heavy Ind Ltd | Parking pole application force measuring device of parking lock mechanism |
| CN201229232Y (en) * | 2008-07-31 | 2009-04-29 | 重庆工学院 | Automobile manual/automatic transmission synthesis test stand |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113008553A (en) * | 2021-04-25 | 2021-06-22 | 重庆理工大学 | New forms of energy reduction gear impact endurance test device |
| CN113008553B (en) * | 2021-04-25 | 2023-11-07 | 重庆理工大学 | Impact endurance test device for new energy reducer |
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| CN104713725B (en) | 2017-09-22 |
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