CN111442922A - Standard-alignment remanufacturing method and testing system for dual-clutch transmission rack - Google Patents

Abstract

The invention provides a double-clutch transmission bench benchmarking test system, which includes: disconnecting the circuit connection between the sensor on the transmission integrated control unit in the oil pan and the control unit; connecting the sensor in the oil pan and the solenoid valve Outgoing wiring harness, the power supply wiring harness formed by connecting with the power source, the sensor wiring harness and the solenoid valve wiring harness which are drawn out form an internal modification wiring harness; an external wiring harness is formed outside the oil pan, and the external wiring harness is connected to the inner wiring harness through the through hole on the oil pan Change the wiring harness; connect the outer wiring harness to the signal conditioning module outside the oil pan. The invention obtains the benchmarking transmission through a simple and reliable transmission modification method, and further builds a low-cost wet double-clutch transmission bench benchmarking test system based on various test hardware modules, so as to avoid the need for rapid control of the prototype bench. In this case, the benchmark transmission is locked in a fixed gear, and the basic performance parameters of the benchmark transmission on the test bench are obtained.

Description

A kind of double-clutch transmission bench benchmarking modification method and test system

technical field

The invention relates to the field of transmission testing, in particular to a method and a testing system for benchmarking and manufacturing a double-clutch transmission bench.

Background technique

In the development process of the dual-clutch transmission, it is necessary to investigate the basic performance of competing transmissions. In the existing technology, bench benchmarking tests are usually used to verify and analyze the competing products, so as to achieve the purpose of optimizing the independently developed and designed transmission with reference to the performance of the competing products. Therefore, the development of a bench benchmarking test system that can lock the transmission gear to obtain the performance parameters of the benchmarking transmission system is crucial to improving the hydraulic and electrical control, transmission efficiency, vibration and noise quality of the transmission under development.

At present, on the one hand, distributed transmission control units are relatively common in the field of automatic transmissions. In such automatic transmissions, sensors and control signals have connectors on the transmission housing, which can be directly connected by cutting off the other end of the transmission connector. The rapid control prototype is connected to the transmission, but because the rapid control prototype manufacturer is monopolized by German and American companies, it is not only expensive to purchase, but also has a long supply cycle. If only a single transmission is benchmarked, it will form a larger resource. waste.

On the other hand, the integrated transmission transformation process is complicated, and it is not feasible to apply the mainstream distributed transmission control unit transformation scheme. The wiring harness on the integrated transmission controller unit is integrated on the transmission controller circuit board, and the transmission housing only reserves the transmission CAN cable and power supply interface. It is difficult to complete the benchmarking technology when the sensor model is unknown and there is no signal processing circuit inside the transmission.

SUMMARY OF THE INVENTION

In view of this, it is necessary to provide a double-clutch transmission bench benchmarking modification method and testing system to solve the above technical problems.

The invention provides a double-clutch transmission bench benchmarking test system, comprising:

Disconnect the sensor circuit on the transmission integrated control unit in the oil pan from the circuit of the control unit;

Connect the lead wire harness of the sensor and the solenoid valve in the oil pan, and the power supply wire harness formed by connecting with the power source and the lead sensor wire harness and the solenoid valve wire harness form an internal modification wire harness;

An outer wiring harness is formed on the outside of the oil pan, and the outer wiring harness is connected to the inner modified wiring harness through a through hole on the oil pan;

Connect the outer wiring harness to the signal conditioning module outside the oil pan.

In a specific embodiment, the sensor circuit and the solenoid valve circuit are connected by welding, and the welding part of the sensor circuit and the solenoid valve circuit is coated with high temperature resistant insulating glue.

In a specific embodiment, the inner modified wire harness is drawn out through a plug connector and an oil-proof seal; the outer wire harness is a shielded wire harness capable of shielding external interference signals.

The present invention also provides a double-clutch transmission bench benchmarking and modification system, including: a control device, a test bench, an analog feedback device, and a benchmarking transmission obtained by using the above-mentioned transmission modification method. The benchmarking transmission is fixed on the test bench, the test bench includes a bench motor, the control device is signally connected to the test bench, and the driving end of the bench motor is connected to the driving end of the benchmarking transmission, The benchmarking transmission is signal-connected with the analog feedback device through a signal conditioning module; the control device controls the gantry motor to drive the benchmarking transmission, and the signal conditioning module acquires and sends the signal to the analog feedback device The shift fork position signal, the input speed signal, the parking position signal, the transmission oil temperature signal and the clutch pressure signal of the benchmark transmission are transmitted.

In a specific embodiment, the dual-clutch transmission bench benchmarking and modification system further includes an analog quantity acquisition module, and the signal conditioning module is signal-connected to the analog quantity feedback device through the analog quantity acquisition module, and the analog quantity feedback device The fork position signal, the input rotational speed signal, the parking position signal, the transmission oil temperature signal and the clutch pressure signal of the benchmark transmission are acquired through the analog quantity acquisition module.

In a specific embodiment, the dual-clutch transmission bench benchmarking test system includes a solenoid valve control module signally connected to the control device and a clutch signally connected to the analog quantity acquisition module, and the benchmarking transmission further includes A switch solenoid valve, a shift solenoid valve and a direct drive solenoid valve, when the gantry motor drives the benchmarking transmission, the control device controls the switch solenoid valve through the solenoid valve control module to complete the alignment of the parking position control, control the shift solenoid valve to push the fork to the corresponding gear, and control the direct drive solenoid valve to drive the clutch to engage and lock the gear.

In a specific embodiment, the clutch is a dual clutch, the actual clutch rotational speed of the clutch corresponds to the clutch pressure acquisition signal, and the signal conditioning module obtains the actual clutch rotational speed through pulse counting and transmits it to the analog quantity acquisition module. The analog quantity feedback device judges the state of the clutch according to the difference between the actual speed of the clutch and the input speed of the transmission transmitted by the analog quantity acquisition module; the clutch pressure signal includes the actual clutch pressure signal and the clutch pressure collection signal, the The signal conditioning module obtains the clutch pressure acquisition signal through the pressure sensor arranged on the clutch, and transmits it to the analog quantity feedback device through the analog quantity acquisition module; the clutch speed of the clutch corresponds to the clutch pressure, and the analog quantity The feedback device obtains the actual clutch pressure signal according to the actual clutch rotational speed and the corresponding relationship between the clutch rotational speed and the clutch pressure, and feeds back the control of the clutch by the transmission in combination with the clutch pressure acquisition signal, and the clutch includes an odd-numbered clutch and an even-numbered clutch , the clutch pressure acquisition signal includes an odd clutch pressure acquisition signal corresponding to the odd clutch rotational speed output by the odd clutch and an even clutch pressure acquisition signal corresponding to the even clutch rotational speed output by the even clutch; the analog quantity acquisition module The parking position signal and the fork position signal are obtained by respectively aligning the parking position sensor and the fork position sensor arranged on the standard transmission, and the analog feedback device verifies the input speed of the transmission in the analog acquisition module. The speed ratio to the output speed obtains the actual gear position of the transmission.

In a specific embodiment, the benchmarking transmission includes an oil temperature adjustment module and an oil temperature measurement unit disposed at the oil drain plug of the benchmarking transmission, and the oil temperature adjustment module adjusts the transmission oil through the heat exchange inlet and outlet pipes The oil temperature measurement unit collects the transmission oil temperature, and transmits the transmission oil temperature signal to the analog quantity acquisition module through the signal conditioning module.

In a specific embodiment, the benchmarking transmission is provided with an input rotational speed measuring unit that collects the input rotational speed at the drive shaft of the transmission and an output rotational speed measuring unit that collects the output rotational speed at the output shaft of the transmission. The input rotational speed pulse signal of the transmission is obtained by counting and transmitted to the signal processing module, and the signal processing module converts the input rotational speed pulse signal into an input rotational speed signal and transmits it to the analog quantity acquisition module; the output rotational speed measurement unit The output speed signal of the transmission is acquired and transmitted to the analog quantity acquisition module.

In a specific embodiment, the control device is signal-connected to the analog feedback device, and the dual-clutch transmission bench benchmarking test system further includes an incubator for performing a low-temperature performance test on the benchmarking transmission. The control device collects the rotation angle of the gantry motor, the driving speed, the driving torque and the temperature of the incubator and transmits them to the analog feedback device.

To sum up, the present invention provides a simple and reliable transmission modification method, and uses the benchmark transmission obtained by the modification method, and builds a low-cost wet dual-clutch transmission bench benchmarking test based on various test hardware modules The system can lock the benchmark transmission in a fixed gear without the need to quickly control the prototype bench, and obtain the basic performance parameters of the benchmark transmission on the test bench.

The above description is only an overview of the technical solutions of the present invention, in order to be able to understand the technical means of the present invention more clearly, it can be implemented according to the content of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand , the following specific preferred embodiments, and in conjunction with the accompanying drawings, are described in detail as follows.

Description of drawings

FIG. 1 is a schematic structural diagram of a specific embodiment of the transmission reforming method provided by the present invention;

Fig. 2 is the principle block diagram of the double-clutch transmission bench benchmarking and reforming system provided by the present invention;

FIG. 3 is a schematic block diagram of the control module of the solenoid valve in FIG. 2 for the control of the switch solenoid valve, the shift solenoid valve and the direct drive solenoid valve in the benchmark transmission.

Detailed ways

In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the present invention is described in detail below with reference to the accompanying drawings and preferred embodiments.

As shown in FIG. 1 , the present invention provides a transmission modification method for modifying a transmission including a transmission integrated control unit 11 , and the modification method includes:

Disconnect the sensor on the transmission integrated control unit 11 in the oil pan 10 from the circuit connection of the control unit;

The lead-out harness connecting the sensor and the solenoid valve in the oil pan 10, the power supply harness formed by connecting with the power source, the sensor harness and the solenoid valve harness which are led out form the internal modification harness 12;

An outer wiring harness 13 is formed outside the oil pan 10, and the outer wiring harness 13 is connected to the inner wiring harness 12 through the through hole on the oil pan 10;

Connect the external wiring harness 13 to the signal conditioning module 14 outside the oil pan 10 .

In the present invention, the sensor circuit and the solenoid valve circuit are welded, the inner modified wiring harness 12 is led out through the plug-in part 15, and an oil-proof seal 16 is arranged between the plug-in part 15 and the through hole of the oil pan 10 to prevent oil leakage. Prevent the oil in the transmission from leaking out when the internal modification harness 12 is drawn out. In a preferred embodiment, the plug connector 15 is an aviation joint, and the aviation joint is preferably a joint with more pins, and the sealing member 16 is a sealing ring.

Specifically, the welding part of the sensor circuit and the solenoid valve circuit is coated with high-temperature-resistant insulating glue, and after fixing the inner modified wiring harness 12 (sensor wiring harness, solenoid valve wiring harness and power supply wiring harness) with ties, bypass the hydraulic module 10a and The oil suction filter 10b (the internal modified wiring harness 12 is bent at the hydraulic module 10a and the oil suction filter 10b), then passes through the through hole on the oil pan 10, and is led out to the oil bottom through the seal 16 and the plug connector 19 the outside of the shell 10 .

In the transmission modification method provided by the present invention, due to the limited internal space of the oil pan 10, the inner modification wire harness 12 is preferably a wire harness with a diameter as small as possible, and the outer wire harness 13 is a shielded wire harness capable of shielding external interference signals.

As shown in FIG. 2 , the present invention also provides a double-clutch transmission bench benchmarking and modification system, which includes: a control device 21 , a test bench 22 , an analog quantity acquisition module 23 , an analog quantity feedback device 24 , and the use of the above The benchmark transmission 100 obtained by the transmission modification method.

The benchmark transmission 100 is fixed on the test bench 22 through the bench tooling 20a. The test bench 22 includes a bench motor. The control device 21 stores control parameters for controlling the test bench 22. The control device 21 and the test bench 22 signal connection, the drive end of the gantry motor is connected to the drive end of the benchmarking transmission 100 through splines, so that the control device 21 can control the drive end of the gantry motor to give an input speed and further drive the benchmarking transmission 100. Since the test bench 22 is driven by the bench motor, compared with the traditional transmission control unit, the wiring will be longer, and it is easy to introduce signal interference. Therefore, the external wiring harness 13 is preferably a shielded wiring harness that can shield external interference signals. 15 (air joint) and seal 16 (sealing ring) are preferably made of materials with good electromagnetic shielding properties.

Further, the benchmarking transmission 100 is signally connected to the analog quantity acquisition module 23 through the signal conditioning module 14, and the analog quantity acquisition module 23 is signally connected to the analog quantity feedback device 24 through the CAN line, so that the analog quantity acquisition module 23 can obtain the information of the benchmarking transmission 100. The test parameters are transmitted to the analog feedback device 24 . In the present invention, the signal conditioning module 14 transmits the fork position signal of the benchmark transmission 100, the input speed signal of the transmission on the benchmark transmission 100, the actual clutch speed signal, and the clutch pressure to the analog feedback device 24 through the analog quantity acquisition module 23. signal, parking position signal and transmission oil temperature signal; at the same time, the output speed signal of the transmission on the benchmark transmission 100 is directly transmitted to the analog feedback device 24 through the analog quantity acquisition module 23 .

Further, the control device 21 is signal-connected with the analog feedback device 24 through the CAN line, that is, the control device 21 can collect the performance parameters of the test bench 22 and transmit them to the analog feedback device 24 for benchmarking. Tuning during transmission 100 testing.

Specifically, the oil pan 10 of the benchmark transmission 100 is provided with an oil temperature measurement unit for measuring the temperature of the transmission oil and an oil temperature adjustment module 101 for adjusting the temperature of the transmission oil. The oil temperature adjustment module 101 regulates the transmission oil temperature through the heat exchange inlet and outlet pipes. The oil temperature measurement unit is arranged at the oil drain plug 17 of the oil pan 10. The oil temperature measurement unit collects the transmission oil temperature and transmits the obtained transmission oil temperature signal. It is transmitted to the signal conditioning module 14 , and then processed by the signal conditioning module 14 and then transmitted to the analog quantity acquisition module 23 .

In the present invention, the benchmark transmission 100 is provided with an input rotational speed measuring unit 102a for collecting the input rotational speed at the drive shaft of the transmission, and an output rotational speed measuring unit 102b for collecting the output rotational speed at the output shaft of the transmission. The input speed pulse signal of the transmission is obtained by the method and transmitted to the signal conditioning module 14. The signal conditioning module 14 converts the input speed pulse signal into an input speed signal and transmits it to Analog acquisition module 23 . Please further refer to FIG. 1 , the output rotational speed measuring unit 102b uses the rotational speed measuring laser 10c and the rotational speed measurement reflector 10e disposed on the output half shaft 10d of the benchmark transmission 100 to measure the output rotational speed pulse of the benchmark transmission, and compares the acquired transmission speed pulses. The output speed pulse signal is transmitted to the secondary instrument 10f, and then transmitted and output to the analog quantity acquisition module 23 by the secondary instrument 10f.

In the present invention, the dual-clutch transmission bench benchmarking test system further includes a solenoid valve control module 25 and a clutch that is signally connected to the analog quantity acquisition module 23. When the benchmarking transmission 100 has a certain idle speed, the control device 21 is connected via the Ethernet The control solenoid valve control module 25 performs control of the clutch and benchmark transmission 100 .

Specifically, referring to FIG. 2 and FIG. 3 , the benchmarking transmission 100 further includes a switch solenoid valve 103 , a shift solenoid valve 104 and a direct drive solenoid valve 105 ; when the control device 21 rotates the frame motor and drives the benchmarking transmission 100 , the control device 21 controls the switch solenoid valve 103 through the solenoid valve control module 25 to complete the control of the parking position, controls the shift solenoid valve 104 to push the fork to the corresponding gear, and controls the direct drive solenoid valve 105 to combine with the clutch to complete the Shifting operation, that is, when the shift fork is shifted to the corresponding gear, the direct-drive solenoid valve 105 is further controlled to be combined with the clutch, and the shifting is successful.

Further, the clutch pressure signal includes the clutch pressure acquisition signal, the parking position signal, the shift fork position signal and the clutch actual pressure signal can pass through the parking position sensor and the shift fork position sensor arranged on the transmission on the benchmark transmission 100, and the clutch respectively. The pressure sensor arranged on the upper part collects the relevant data, and the parking position sensor, the shift fork position sensor and the pressure sensor further transmit the respectively acquired parking position signal, shift fork position signal and the actual clutch pressure signal to the signal conditioning module 14, and then The signal conditioning module 14 is transmitted to the analog quantity acquisition module 23, and the analog quantity feedback device 24 can judge whether the parking is in place according to the position feedback quantity collected by the parking position sensor, and judge whether the clutch is in place according to the clutch pressure feedback quantity collected by the pressure sensor. For regulation, the gear signal of the benchmark transmission is determined according to the position of the fork and the clutch pressure or the speed ratio of the input speed and the output speed of the transmission. In a preferred embodiment provided by the present invention, the present invention judges the transmission by verifying the ratio of the input rotational speed of the transmission measured by the rotational speed measuring unit 102a in the analog quantity acquisition module 23 to the output rotational speed of the transmission measured by the output rotational speed measuring unit 102b. the actual in-gear position to ensure that the gear lock is complete.

Since the actual gear status of the transmission is determined by the speed ratio, it can be understood that the present invention can judge the actual gear shift position of the transmission by the speed ratio. Under the condition that the connection part between the benchmark transmission 100 and the gantry motor does not slip, the input speed can be understood as the drive shaft speed of the benchmark transmission or the drive speed transmitted from the control device 21 to the analog feedback device 24 .

Further, in a specific embodiment provided by the present invention, the clutch is a dual clutch, and the direct drive solenoid valve 105 provides a certain pressure to the clutch through the current provided by the voltage, and the output pressure acts on the clutch pressure plate to transmit torque ( friction force) to drive the clutch drive shaft to rotate. At this time, the signal conditioning module 14 can obtain the actual speed of the clutch by means of pulse counting, and transmit the actual speed signal of the clutch to the analog quantity acquisition module 23, then the analog quantity feedback device 24 can be based on the simulation The difference between the actual rotational speed of the clutch transmitted by the quantity acquisition module 23 and the input rotational speed is used to judge the state of the clutch (slipping or pressing or separating). In detail, when shifting gears, due to insufficient clutch pressure, there will be a difference between the actual speed of the clutch and the input speed, and the clutch will be in a slippery state. After the shift is successful, if there is no misoperation of the clutch, and the clutch pressure value is sufficient at this time, the actual speed of the clutch is consistent with the actual speed, that is, the difference is zero, and the clutch is in a tight state at this time; Operating until the two clutches are engaged at the same time will inevitably cause a difference between the clutch speed and the input speed, which will cause the clutch to slip or even burn the clutch; in neutral, the two clutches are not engaged and the clutch is in a disengaged state. In the present invention, the clutch pressure acquisition signal needs to be calibrated for the relationship between the output pressure and the voltage, and is stored in the control device 21 in advance.

More specifically, the clutch pressure signal includes the actual clutch pressure signal; and since the clutch pressure corresponds to the clutch rotational speed, the analog feedback device 24 can obtain the corresponding relationship between the clutch actual rotational speed and the clutch pressure and the clutch rotational speed input from the analog quantity acquisition module 23 . , to obtain the actual pressure signal of the clutch in the actual process, and further combine the clutch pressure collection signal obtained by the analog quantity collection module 23 to feed back the regulation of the clutch.

In a specific embodiment provided by the present invention, the clutch includes an odd-numbered clutch and an even-numbered clutch. Meanwhile, the clutch pressure acquisition signal includes an odd-numbered clutch pressure acquisition signal corresponding to the actual rotational speed of the odd-numbered clutch output by the odd-numbered clutch, and an even-numbered clutch output corresponding to the even-numbered clutch. The even-numbered clutch pressure acquisition signal corresponding to the rotational speed. It can be understood that when the direct-drive solenoid valve 105 is combined with an odd-numbered clutch, the state of the odd-numbered clutch can be judged according to the same principle as the above-the difference between the actual speed of the odd-numbered clutch and the input speed, and the difference between the actual speed of the odd-numbered clutch, the pressure of the odd-numbered clutch, and the speed of the odd-numbered clutch can be determined. The corresponding relationship and the collected odd-numbered clutch pressure signal of the odd-numbered clutch are used to feed back the regulation of the clutch. Likewise, when the direct-drive solenoid valve 105 is combined with an even-numbered clutch, reference may be made to the specific principle of combining with an odd-numbered clutch, which will not be repeated here.

The analog quantity acquisition module 23 provided by the present invention can avoid the problems that the transmitted signal will be disturbed and the signal magnitude does not match the acquisition equipment during the actual benchmarking test, so as to provide high-quality signal acquisition. It can be understood that the dual-clutch transmission bench benchmarking test system provided by the present invention may also not include the analog quantity acquisition module 23 .

In the present invention, the control device 21 and the analog feedback device 24 may be computer systems, that is, the control device 21 is a control computer, and the analog feedback device 24 is a collection feedback computer, but in other embodiments, the control device 21 also It can be used for other control systems such as PLC, and there is no specific limitation.

The double-clutch transmission bench benchmarking test system also includes a temperature box 27 for performing low-temperature performance tests on the benchmark transmission 100. A temperature sensor for measuring the temperature of the temperature box is provided in the temperature box 27. The temperature sensor measures the temperature of the temperature box. The box temperature signal is transmitted to the analog feedback device 24 through the control device 21 . That is, the control device 21 provided by the present invention transmits the collected rotation angle, driving speed, driving torque and temperature of the temperature box of the gantry motor to the analog feedback device 24, so as to further feedback the adjustment of the benchmark transmission 100 .

In more detail, if the present invention involves the measurement of the clutch oil temperature in order to improve the performance development of transmission hydraulic and electrical control, transmission efficiency, vibration and noise quality, etc. to obtain a more comprehensive basic performance index of the standard transmission 100, the clutch oil The input end of the temperature sensor is powered by a precision regulated power supply, and a voltage divider resistor is connected in series, and the analog quantity acquisition module 23 completes the measurement of the voltage at the thermistor sensor end of the clutch oil temperature used to measure the temperature in the transmission, and finally converted into The measured voltage corresponds to the clutch oil temperature value to complete the measurement of the clutch oil temperature. In a preferred embodiment, the voltage dividing resistor is a precision resistor.

In summary, the present invention provides a simple and reliable transmission modification method, and uses the modification method to obtain a benchmarking transmission, and builds a low-cost wet dual-clutch transmission bench benchmarking test system based on various test hardware modules. Its test function not only basically covers the corresponding transmission development test items, but also locks the benchmark transmission in a fixed gear without the need to quickly control the prototype bench to obtain the basic performance parameters of the benchmark transmission on the test bench. .

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. , without departing from the scope of the technical solution of the present invention, when the technical content disclosed above can be used to make some changes or modifications to equivalent embodiments with equivalent changes, provided that it does not depart from the technical solution content of the present invention, according to the technical essence of the present invention Any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solutions of the present invention.

Claims (10)

1. A transmission remanufacturing method comprising:

disconnecting the sensor on the transmission integrated control unit (11) in the oil pan (10) from the control unit;

an outgoing line harness for connecting a sensor and an electromagnetic valve in the oil pan (10), a power supply line harness formed by connecting a power supply, the outgoing sensor line harness and the outgoing electromagnetic valve line harness form an internal wiring harness (12);

an outer wire harness (13) is formed outside the oil pan (10), and the outer wire harness (13) is connected to the inner wire harness (12) through a through hole in the oil pan (10);

and the outer wire harness (13) is connected to a signal conditioning module (14) outside the oil pan (10).

2. The transmission remanufacturing method according to claim 1, wherein the sensor circuit and the solenoid valve circuit are connected by welding, and a welding portion of the sensor circuit and the solenoid valve circuit is coated with a high temperature resistant insulating glue.

3. A transmission remanufacturing method according to claim 1, wherein the inner remanufacturing bundle (12) is drawn through a plug (15) and an oil-tight seal (16); the outer wire harness (13) is a shielding wire harness capable of shielding external interference signals.

4. A dual clutch transmission gantry benchmarking remanufacturing system, comprising: a control device (21), a test bench (22), an analog quantity feedback device (24) and a benchmarking transmission (100) obtained by the transmission remanufacturing method according to any one of claims 1 to 3, wherein the benchmarking transmission (100) is fixed on the test bench (22), the test bench (22) comprises a bench motor, the control device (21) is in signal connection with the test bench (22), a driving end of the bench motor is connected with a driving end of the benchmarking transmission (100), and the benchmarking transmission (100) is in signal connection with the analog quantity feedback device (24) through a signal conditioning module (14); the control device (21) controls the rack motor to drive the benchmarking transmission (100), the signal conditioning module (14) obtains and transmits a shifting fork position signal, an input rotating speed signal, a parking position signal, a transmission oil temperature signal, a clutch actual rotating speed signal and a clutch pressure signal of the benchmarking transmission (100) to the analog quantity feedback device (24).

5. The dual clutch transmission bench pair mapping test system according to claim 4, further comprising an analog quantity acquisition module (23), wherein the signal conditioning module (14) is in signal connection with the analog quantity feedback device (24) through the analog quantity acquisition module (23), and the analog quantity feedback device (24) acquires a shift fork position signal, an input rotation speed signal, a parking position signal, a transmission oil temperature signal and a clutch pressure signal of the pair of standard transmissions (100) through the analog quantity acquisition module (23).

6. The dual clutch transmission gantry pair mapping system of claim 5, the dual-clutch transmission bench mapping test system comprises an electromagnetic valve control module (25) in signal connection with the control device (21) and a clutch in signal connection with the analog quantity acquisition module (23), the benchmarking transmission (100) further comprises a switch solenoid valve (103), a gear shifting solenoid valve (104) and a direct drive solenoid valve (105), when the bench motor drives the target speed changer (100), the control device (21) controls the switch electromagnetic valve (103) to complete the control of the parking position through the electromagnetic valve control module (25), controls the gear shifting electromagnetic valve (104) to push the shift fork to a corresponding gear, and the direct-drive electromagnetic valve (105) is controlled to drive the clutch to be combined, and gears are locked.

7. The dual-clutch transmission bench pair mapping test system according to claim 6, wherein the clutches are dual clutches, the signal conditioning module (14) obtains actual rotational speeds of the clutches through pulse counting and transmits the actual rotational speeds of the clutches to the analog quantity acquisition module (23), and the analog quantity feedback device (24) judges states of the clutches according to differences between the actual rotational speeds of the clutches and input rotational speeds of the transmissions, which are transmitted by the analog quantity acquisition module (23); the clutch pressure signal comprises a clutch actual pressure signal and a clutch pressure acquisition signal, and the signal conditioning module (14) acquires the clutch pressure acquisition signal through a pressure sensor arranged on the clutch and transmits the clutch pressure acquisition signal to the analog quantity feedback device (24) through the analog quantity acquisition module (23); the clutch rotating speed of the clutch corresponds to the clutch pressure, the analog quantity feedback device (24) acquires an actual clutch pressure signal according to the actual clutch rotating speed and the corresponding relation between the clutch rotating speed and the clutch pressure, and feeds back the regulation and control of the clutch by combining a clutch pressure acquisition signal, the clutch comprises an odd clutch and an even clutch, and the clutch pressure acquisition signal comprises an odd clutch pressure acquisition signal corresponding to the odd clutch rotating speed output by the odd clutch and an even clutch pressure acquisition signal corresponding to the even clutch rotating speed output by the even clutch; the analog quantity acquisition module (23) acquires parking position signals and shifting fork position signals through a parking position sensor and a shifting fork position sensor which are arranged on the benchmarking transmission (100) respectively, and the analog quantity feedback device (24) judges the actual gear position of the transmission according to the rotating speed ratio of the input rotating speed and the output rotating speed of the transmission in the analog quantity acquisition module (23) through verification.

8. The dual-clutch transmission bench mapping test system according to claim 6, wherein the benchmarking transmission (100) comprises an oil temperature adjusting module (101) and an oil temperature measuring unit arranged at an oil discharging screw plug (17) of the benchmarking transmission (100), the oil temperature adjusting module (101) adjusts the transmission oil temperature through a heat exchange inlet and outlet pipe, the oil temperature measuring unit collects the transmission oil temperature, and transmits a transmission oil temperature signal to the analog quantity collecting module (23) through the signal conditioning module (14).

9. The dual-clutch transmission bench mapping test system according to claim 6 or 8, wherein the target transmission (100) is provided with an input rotation speed measuring unit (102a) for acquiring an input rotation speed at a driving shaft of the transmission and an output rotation speed measuring unit (102b) for acquiring an output rotation speed at an output shaft of the transmission, the input rotation speed measuring unit (102a) acquires an input rotation speed pulse signal of the transmission through pulse counting and transmits the input rotation speed pulse signal to the signal processing module (14), and the signal processing module (14) converts the input rotation speed pulse signal into an input rotation speed signal and transmits the input rotation speed signal to the analog quantity acquisition module (23); the output rotating speed measuring unit (102b) acquires an output rotating speed signal of the transmission and transmits the output rotating speed signal to the analog quantity acquisition module (23).

10. The dual clutch transmission rack-to-frame mapping testing system according to claim 4, wherein the control device (21) is in signal connection with the analog quantity feedback device (24), the dual clutch transmission rack-to-frame testing system further comprises an incubator (27) for performing a low temperature performance test on the target transmission (100), and the control device (21) collects a rotation angle, a driving rotation speed, a driving torque and an incubator temperature of the incubator (27) of the rack motor and transmits the collected rotation angle, the driving rotation speed, the driving torque and the incubator temperature to the analog quantity feedback device (24).

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