CN101319964A - Vehicle transmission control mechanism assembly testing bench - Google Patents

Abstract

The invention discloses a test-bed for testing the performances and durability of a shift control mechanism assembly of a vehicle which includes a test-bed body; in the test-bed body, an adjustable mounting adjusting framework with six directions is fixedly arranged at the front end; the shift control mechanism assembly of the vehicle is arranged in the mounting adjusting framework; the output end of the shift control mechanism assembly of the vehicle is connected with a gearbox by selecting and exchanging gearshift lines; the control frame of a PLC control system is arranged on a side wall at the back part in the test-bed body; an air cylinder loading system and a load system are arranged above the test-bed body. The assembly of the test-bed has the following advantages of: 1, being capable of simulating the actual operating condition of the shift control mechanism assembly of the vehicle; 2, being capable of simulating the gear shift and selecting motions on the shift control mechanism assembly of the vehicle; 3, dividing the test-bed controlled by the system into a 'manual' operating mode and an 'automatic' operating mode which can freely and mutually switch; 4, having the function of alarming when the time for gear shift is excessive.

Description

Automotive transmission control mechanism assembly test bench

FIELD

The present invention relates to a test bed for a vehicle transmission actuator assembly properties and endurance tests. Background technique

Automotive transmission actuator assembly is one of the key components of a passenger car, reliability and service life of its performance is directly related to the use and safety of the vehicle. In the shift actuator assembly of the car are still no set of aspects and durable performance test equipment in one of the detection apparatus. Although there are many domestic and testing methods and apparatus described shift actuator assembly of the car, but the majority of the control device is a servo motor, and the load weight system to use an air cylinder, not only the high cost of test, and load control is not complete

Full simulation of the actual vehicle state, as described in Patent No. CN200410068018. 1, and entitled "Car of control system for a transmission shift" the technical solution disclosed in the patent is to use computer programming control, power system loading servo motor, the presence of the control complex, to modify system maintenance problems and disadvantages of the complex, which load the system by dampers load, although its claim to provide a damping force at the actual vehicle state, but the damping force control routine will test and there are some errors, to test the entire system impact, in many cases not completely simulate the real vehicle state, in particular during the shift actuator assembly substantially static performance test when the shift select and shift select clearance against the magnitude of the force can not be achieved simulated load; and then the patent No. CN200510110178.2 titled "performance test bed testing vehicle gearshift assembly" of the patent is only a test platform for the automotive transmission synchronizer life. SUMMARY

The present invention is to overcome the deficiencies of the technical problem of the prior art, there is no set of performance and durability testing equipment in one, thus provides a variable speed test Powertrain control mechanism, by the PLC control system for automotive transmission test Bench test assembly actuating mechanism, measure, record and modify various parameters, using pneumatic actuators themselves to reach easy to operate, easy to modify, maintenance purposes. To solve the above technical problem, the technical solution of the present invention, the test bed assembly operating mechanism for an automobile transmission, comprising a test bed body located within the test station, the distal end fixedly attached to the six-direction adjustment adjustable mounting frame, automotive transmission shift actuator assembly is mounted on the mounting frame adjustment, automotive transmission shift actuator assembly is connected to the output terminal selected by the shift cable and transmission, it is located in the test

PLC control system mounted above the control block, the test platform body is provided with a cylinder loading system and the load system on the rear stage side wall vivo.

The structure is a cylinder loading systems: the select cylinder rigidly fixed on the test body according to the shift cylinder is fixed by a living hinge tooling in the select cylinder, solenoid valves proximity switch mounted on the outer wall of the shift cylinder bore, the transmission lever is connected by a clamp and the shift cylinder.

The PLC control system is provided with a manual control by the frame and pneumatic circuit composition mounted / auto switch

Changeover switch, a start button, a stop button, a cylinder second gear selector switch (forward / backward), the shift cylinder-position switch (forward / holding / backward), counter, switching power supplies, three five-way solenoid valves and other components, the number of show

Instrumentation and PLC control system mounted on the rear side by side block sidewall vivo test stand, with the linear displacement sensor rod end is connected to the shift cylinder, the linear displacement sensor connected by a signal line and digital instrumentation, PLC control system block, digital instrumentation, linear displacement sensor proximity switch and a solenoid valve composed PLC programmable control system.

The structure of the system load is: pulling a pressure sensor mounted in the front end of the piston rod of the shifting cylinder, pulling the pressure sensor via a signal line connected digital display instrument, and a transmission shift cable selected by the test pieces in Test Taiwan connection as a whole.

The assembly of the motor vehicle test station transmission actuating control switches can be freely divided between "automatic" and "manual" types, and the two types.

Under the "manual" control state, a select cylinder and a shift cylinder operation may be controlled independently, in separate stages of the cylinder each time the control button, PLC programmable logic controller proximity switch according to the current feedback solenoid valve signal, the operation of a cylinder.

Under the "automatic" control state, press the start button on the control box PLC control system, programmable logic controller FX1S-14MR proximity switch solenoid valve according to a feedback signal identifying the select cylinder or the shift cylinder position of the current the conventional information, the program runs down FX1S-14MR programmable controller output signal to an intermediate relay, relay "normally open" contacts closed, and the solenoid valve is opened, compressed air into the shift cylinder control transducer before and after the shift operation of the cylinder; and then compressed air into the cylinder selector, the select cylinder sliding around.

The clip is a ball joint clamp.

Test vehicle gearbox assembly station having the above special actuating structure during use, the prior art has the following advantages: 1 can simulate actual operating state of the shift actuator assembly of automobiles; 2. car can be simulated. transmission shift actuator assembly, a select operation; 3 test rig control system into the "manual" and "automatic" two operation modes, and can freely switch between the two operating modes;. a shift over 4 having time alarm function.

BRIEF DESCRIPTION

Hereinafter, the present invention will be further described in detail in conjunction with accompanying drawings and specific embodiments. Figure 1 is a schematic structural diagram of the present invention.

Shown in FIG. 1: 1, test stand body; 2, mounting frame adjustment; 3, automotive transmission shift actuator assembly; 4, the transmission lever; 5, the jig; 6, pull the pressure sensor; 7, a shift cylinder; 8, proximity switches solenoid valves; 9, linear displacement sensor; 10, hinged activity tooling; 11, selector cylinder; 12, digital instrumentation; 13, PLC control system control block; 14, selected from the shift cable; 15, transmission.

detailed description

As shown in FIG. 1 is a schematic view of the test stand assembly automotive transmission actuating mechanism, the actuating assembly for an automobile transmission test station comprising a test bed body L, L is located within the test platform body, the distal end fixedly mounted six adjustment direction adjustable mounting frame 2, automotive transmission shift actuator assembly 3 is mounted on the mounting frame 2 to adjust, automotive transmission shift actuator assembly output terminal 3 through the gate 14 and the shift cable 15 is connected to the gearbox , located on the rear sidewall of the inner member 1 is attached to test rig, above the test platform body 1 of the PLC control system 13 is provided with a cylinder block loading system and the load system.

Structure cylinder loading system is: rigidly fixed on a test table selector cylinder body 11, a shift cylinder 7 by a living hinge fixture 10 is fixed in the select cylinder 11, the solenoid valve 8 is mounted in proximity switch shift cylinder 7 the cylinder outer wall 4 is connected to the transmission lever through a ball joint clamp 7 and the shift cylinder.

PLC control system equipped with a manual control box 13 by a combination of circuit and pneumatic installation / automatic transfer switch, a start button, a stop button, a cylinder second gear selector switch (forward / backward), the shift cylinder-position switch (forward / holding / backward), counter, switching power supplies, three five-way solenoid valves, etc., digital instrument control system 12 and the PLC frame 13 mounted on the rear side by side in a test rig sidewall member, the shift cylinder 7 linear displacement sensor connected to the front end of the piston rod 9, the linear displacement sensor 912 is connected through a signal line and digital instrumentation, PLC control system control block 13, digital meter 12, the linear displacement sensor proximity switch and a solenoid valve 9 8 together constitute PLC programmable control system.

The structure of the load system are: a pressure sensor mounted on the pull rod end 7 of the shift cylinder 6, the pressure sensor 612 pull connected by a signal line and digital instrumentation, and the selected transmission shift cable 14 through 15 test pieces are connected with the test stand as a whole.

The control assembly into the motor vehicle test rig transmission actuating mechanism capable of freely switching between "automatic" and "manual" types, and the two types, "manual" control state, the shift cylinder 7 and the cylinder selector run 11 can be controlled independently, each time the button separate control stage cylinder, PLC programmable controller proximity switch 8 a feedback signal based on the current solenoid valve, the cylinder operation time, "automatic" control state, press under PLC control system start button on the control block, the programmable controller FX1S-14MR the solenoid valve feedback signals proximity switch 8, to identify the current position shift cylinder 7 or the select cylinder 11, according to the conventional information, the program under operation, the programmable controller FX1S-14MR an output signal to an intermediate relay, relay "normally open" contacts closed, and the solenoid valve is opened, compressed air into the cylinder 7 shift, the shift control operation of the front and rear cylinder 7, then compressed air into the select cylinder 11, the select cylinder sliding around ll.

Specific working process is: the entire apparatus is mainly controlled by the PLC control system control block 13, the device power on, self-test PLC First, when the manual / automatic switch is in the automatic position, the cylinder moves the start button and a stop button control, when closing when the start button signal, PLC in accordance with the preset program control internal operation of the entire process, the select cylinder 11 and shift cylinder 7 operate sequentially, each complete cycle, PLC sends a trigger signal to the counter, the counter automatically accumulate, when returns the total number of the counter reaches a set signal to the PLC, PLC program stops running; or when the value of the force sensor signal received digital meters 12 exceeds a predetermined set value, the return signal to the PLC, PLC program stops running; whereby and achieve junior overrun downtime. The select cylinder 11 and shift cylinder 7 can be stopped by the proximity switch PLC and the electromagnetic valve 8 and a combination of any holding position of the piston, selected from the sample through the shift cable 14 and the transmission 15 are connected, a consistent state of the actual vehicle and a load device; by simple tooling operation stop completely simulate actual use (a neutral gear neutral a twelve a neutral third gear), a multi-stage cylinder may also run more complex process.

When the device is power on, PLC self test, when the manual / automatic switch is in the manual position, the cylinder moves the cylinder second gear selector switch (forward / backward), the shift cylinder-position switch (forward / holding / reverse) directly controls .

Further, the actuator assembly for an automobile transmission having a shift junior test stand further alarm function, specific working process is: 1, the counter upper limit value may be provided when the number of operations reaches the set value, the counter sends a signal to the PLC program is aborted; 2, during operation, the force sensor when the measured value exceeds the preset values ​​instrumentation PLC sends a signal to terminate the running program, there is no shift in place within a predetermined time, it is automatically reset into the file again, continuous more than three times without success, that the test was stopped.

Claims (8)

1. An automotive transmission actuator assembly test station comprising a test bed (1), characterized in that: the test station is located in the body (1), the direction of the distal end fixedly mounted with six adjustable mounting adjustment frame (2 ), automotive transmission shift actuator assembly (3) is mounted on the mounting frame adjustment (2), automotive transmission shift actuator assembly (3) is selected by the output of the shift cable (14) and a transmission (15 ) is connected to the test station located in the body (1) is mounted on the rear sidewall PLC control system control block (13), above the test platform body (1) is provided with a cylinder loading system and the load system.
2. 2. The automotive transmission as claimed in claim actuator assembly of the test bed 1, wherein said structure is a cylinder loading system: the test stand rigidly fixed to the cylinder body on the selector (1) (11), the shift cylinder (7) by a living hinge on the tooling (10) is fixed to the select cylinder (11), the proximity switch solenoid valve (8) mounted on the shift cylinder (7) of the outer wall of the cylinder, the transmission lever (4 ) are connected by a clamp (5) and a shift cylinder (7).
3. 3. The test assembly of claim automobiles station transmission control mechanism of claim 1, wherein said control system PLC control block (13) is provided with a combination of manual and pneumatic circuit by mounting / automatic transfer switch, begin button, stop button, a cylinder second gear selector switch (forward / backward), the shift cylinder-position switch (forward / holding / backward), the composition of the counter, the switching power supply, three five-way solenoid valves, etc., digital instrument (12 ) and PLC control system block (13) mounted side by side on the rear side wall) in the (test stand body 1, the linear displacement sensor and the shift cylinder (7) is connected to the front end of the piston rod (9), a straight line displacement sensors (9) are connected by a signal line and digital display instrument (12), the PLC control system control block (13), digital instrumentation (12), the linear displacement sensor (9) proximity switch and a solenoid valve (8) together constitute the PLC programmable control system.
4. 4. The assembly of claim car test station transmission control mechanism of claim 1, wherein said structure is a load system: a cylinder mounted on the shifting (7) of the pull rod end of the pressure sensor (6) pull the pressure sensor (6) is connected via a signal line and digital display instrument (12), selected from the shift cable (14) and the gearbox (15) by being connected to the test station and the test sample as a whole.
5. 5. claimed in any one of claims 1 ~ 4 vehicle gearbox actuator assembly according to the test station, wherein the control into the vehicle gearbox actuator assembly test station "automatic" and " manual "can be switched freely between the two types, and the two types.
6. 6. The assembly as claimed in claim automobile test station of the gearbox actuating mechanism 5, characterized in that the "manual" control of the state where the shift cylinder (7) and a cylinder selector (11) operating independently of each control, independent control of each cylinder each time the button stage, PLC programmable logic controller according to the current proximity switch solenoid valve (8) of the feedback signal, the operation of a cylinder.
7. 7. The assembly as claimed in claim automobile test station of the gearbox actuating mechanism 5, wherein said at "automatic" control state, press the start button on the control box PLC control system, programmable logic controller FX1S -14MR proximity switch solenoid valve (8) of the feedback signal, identifying the shift cylinder (7) or the select cylinder (11) of the current position, based on existing information, running down, the programmable controller FX1S-14MR output signal to an intermediate relay, relay "normally open" contacts closed, and the solenoid valve opens, the compressed air enters the shift cylinder (7), the shift control cylinder (7) before and after the operation; compressed air then enters the select a cylinder (11), a select cylinder sliding around (11).
8. 8. The automotive transmission as claimed in claim actuating assembly test station of claim 2, wherein said clamp (5) is a ball joint clamp.