CN111442922A - Standard-alignment remanufacturing method and testing system for dual-clutch transmission rack - Google Patents
Standard-alignment remanufacturing method and testing system for dual-clutch transmission rack Download PDFInfo
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- CN111442922A CN111442922A CN201811618937.XA CN201811618937A CN111442922A CN 111442922 A CN111442922 A CN 111442922A CN 201811618937 A CN201811618937 A CN 201811618937A CN 111442922 A CN111442922 A CN 111442922A
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/022—Power-transmitting couplings or clutches
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Abstract
The invention provides a double-clutch transmission rack alignment testing system, which comprises: disconnecting a sensor on a transmission integrated control unit in the oil pan from a circuit of the control unit; the lead-out wire harness is connected with the sensor and the electromagnetic valve in the oil pan, and the power supply wire harness formed by connecting the power supply and the lead-out sensor wire harness and the electromagnetic valve wire harness form an internal wiring harness; forming an outer wire harness outside the oil pan, wherein the outer wire harness is connected to the inner wire harness through a through hole in the oil pan; and the outer wire harness is connected to the signal conditioning module outside the oil pan. The benchmarking transmission is obtained through a simple and reliable transmission modification method, and the low-cost wet type dual-clutch transmission bench benchmarking test system is further built based on various test hardware modules, so that the benchmarking transmission is locked at a fixed gear under the condition that a prototype bench does not need to be rapidly controlled, and basic performance parameters of the benchmarking transmission on the test bench are obtained.
Description
Technical Field
The invention relates to the field of transmission testing, in particular to a benchmarking and remanufacturing method and a testing system for a dual-clutch transmission bench.
Background
In the development process of the dual-clutch transmission, basic performances of a transmission of a competitive product need to be researched, in the prior art, the competitive product is usually verified and analyzed by utilizing a rack to perform a mapping test, so that the purpose of optimizing the transmission which is independently developed and designed by referring to the performances of the competitive product is achieved, and therefore, a rack pair mapping test system which can lock the gear of the transmission to obtain performance parameters of a system of the competitive transmission is developed, and the system is of great importance to perfection of hydraulic and electric control, transmission efficiency, vibration noise quality and the like of the developing transmission.
At present, on the one hand, distributed transmission control units are common in the field of automatic transmissions, in the automatic transmissions, sensors and control signals are provided with connectors on a transmission shell, and a rapid control prototype can be directly connected to the transmission by cutting off a wire harness at the other end of the transmission connector.
On the other hand, the integrated transmission reforming process is complex, and the reforming scheme by applying the mainstream distributed transmission control unit is not feasible. The pencil on the integrated form derailleur controller unit all integrates on derailleur controller circuit board, and derailleur CAN line and power supply interface are only reserved to the derailleur casing, need solve pencil spatial arrangement, welding process, insulating, sealed and resistant derailleur operational environment scheduling problem to the standard transformation system, and under the unknown, the condition that does not have the inside signal processing circuit of derailleur of sensor model, the completion is great to the degree of difficulty of standard technique.
Disclosure of Invention
In view of the above, it is desirable to provide a dual clutch transmission bench calibration modification method and a test system for solving the above technical problems.
The invention provides a double-clutch transmission rack alignment testing system, which comprises:
disconnecting a sensor circuit on a transmission integrated control unit in the oil pan from a circuit of the control unit;
the lead-out wire harness is connected with the sensor in the oil pan and the electromagnetic valve, and the power supply wire harness formed by connecting the power supply and the lead-out sensor wire harness and the electromagnetic valve wire harness form an internal change wire harness;
forming an outer wire harness outside the oil pan, wherein the outer wire harness is connected to the inner wire harness through a through hole in the oil pan;
and the outer wire harness is connected to the signal conditioning module outside the oil pan.
In a specific embodiment, the sensor circuit is connected with the electromagnetic valve circuit in a welding mode, and the welding part of the sensor circuit and the electromagnetic valve circuit is coated with high-temperature-resistant insulating glue.
In a specific embodiment, the internal change wire harness is led out through the plug connector and the oil-seepage-proof sealing element; the outer wire harness is a shielding wire harness capable of shielding external interference signals.
The invention also provides a dual-clutch transmission rack benchmarking remanufacturing system, which comprises: the system comprises a control device, a test bench, an analog quantity feedback device and a benchmarking speed changer obtained by using the speed changer remanufacturing method, wherein the benchmarking speed changer is fixed on the test bench, the test bench comprises a bench motor, the control device is in signal connection with the test bench, a driving end of the bench motor is connected with a driving end of the benchmarking speed changer, and the benchmarking speed changer is in signal connection with the analog quantity feedback device through a signal conditioning module; the control device controls the rack motor to drive the benchmarking transmission, and the signal conditioning module acquires and transmits a shifting fork position signal, an input rotating speed signal, a parking position signal, a transmission oil temperature signal and a clutch pressure signal of the benchmarking transmission to the analog quantity feedback device.
In a concrete embodiment, two separation and reunion derailleur rack system of reforming transform still includes analog quantity collection module, the signal conditioning module passes through analog quantity collection module with analog quantity feedback device signal connection, analog quantity feedback device passes through analog quantity collection module acquires shift fork position signal, input speed signal, parking position signal, derailleur oil temperature signal and clutch pressure signal to the mark derailleur.
In a specific embodiment, the dual-clutch transmission bench alignment testing system comprises an electromagnetic valve control module in signal connection with the control device and a clutch in signal connection with the analog quantity acquisition module, the alignment transmission further comprises a switch electromagnetic valve, a gear shifting electromagnetic valve and a direct-drive electromagnetic valve, when the bench motor drives the alignment transmission, the control device controls the switch electromagnetic valve through the electromagnetic valve control module to complete control over a parking position, controls the gear shifting electromagnetic valve to push a shift fork to a corresponding gear, and controls the direct-drive electromagnetic valve to drive the clutch to be combined, so that the gear is locked.
In a specific embodiment, the clutch is a dual clutch, the actual clutch rotating speed of the clutch corresponds to a clutch pressure acquisition signal, the signal conditioning module acquires the actual clutch rotating speed through pulse counting and transmits the actual clutch rotating speed to the analog quantity acquisition module, and the analog quantity feedback device judges the state of the clutch according to the difference value between the actual clutch rotating speed transmitted by the analog quantity acquisition module and the input rotating speed of the transmission; the signal conditioning module 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 through the analog quantity acquisition module; the analog quantity feedback device acquires clutch actual pressure signals according to the corresponding relation between the clutch actual rotating speed and the clutch rotating speed as well as the clutch pressure, and feeds back the regulation and control of the transmission to the clutch by combining clutch pressure acquisition signals, wherein the clutch comprises an odd clutch and an even clutch, and the clutch pressure acquisition signals comprise odd clutch pressure acquisition signals corresponding to the odd clutch rotating speed output by the odd clutch and even clutch pressure acquisition signals corresponding to the even clutch rotating speed output by the even clutch; the analog quantity acquisition module acquires and acquires a parking position signal and a shifting fork position signal through a parking position sensor and a shifting fork position sensor which are arranged on a standard transmission respectively, and the analog quantity feedback device acquires an actual gear position of the transmission through checking the rotating speed ratio of the input rotating speed and the output rotating speed of the transmission in the analog quantity acquisition module.
In a specific embodiment, the benchmarking transmission comprises an oil temperature adjusting module and an oil temperature measuring unit arranged at an oil discharging plug of the benchmarking transmission, the oil temperature adjusting module adjusts the oil temperature of the transmission through a heat exchange inlet pipe and an oil outlet pipe, the oil temperature measuring unit collects the oil temperature of the transmission, and the signal conditioning module transmits an oil temperature signal of the transmission to the analog quantity collecting module.
In a specific embodiment, the benchmarking transmission is provided with an input rotating speed measuring unit for acquiring an input rotating speed at a driving shaft of the transmission and an output rotating speed measuring unit for acquiring an output rotating speed at an output shaft of the transmission, the input rotating speed measuring unit acquires an input rotating speed pulse signal of the transmission through pulse counting and transmits the input rotating speed pulse signal to the signal processing module, and the signal processing module converts the input rotating speed pulse signal into an input rotating speed signal and transmits the input rotating speed signal to the analog quantity acquisition module; the output rotating speed measuring unit acquires an output rotating speed signal of the transmission and transmits the output rotating speed signal to the analog quantity acquisition module.
In a specific embodiment, the control device is in signal connection with the analog quantity feedback device, the dual clutch transmission bench pair mapping test system further comprises an incubator used for testing the low-temperature performance of the standard transmission, and the control device collects the rotation angle, the driving rotation speed and the driving torque of the bench motor and the incubator temperature of the incubator and transmits the collected information to the analog quantity feedback device.
In conclusion, the invention provides a simple and reliable transmission modification method, a benchmarking test system of a wet type dual-clutch transmission rack with low cost is built by utilizing a benchmarking transmission obtained by the modification method and based on various test hardware modules, so that the benchmarking transmission is locked at a fixed gear under the condition of not needing to rapidly control a prototype rack, and basic performance parameters of the benchmarking transmission on the test rack are obtained.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a transmission retrofit method provided by the present invention;
FIG. 2 is a functional block diagram of a dual clutch transmission stage pair shift remanufacturing system provided by the present invention;
FIG. 3 is a functional block diagram of the solenoid control module of FIG. 2 controlling the on-off solenoid, the shift solenoid, and the direct drive solenoid of the target transmission.
Detailed Description
To further explain the technical means and effects of the present invention adopted to achieve the predetermined objects, the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.
As shown in fig. 1, the present invention provides a transmission remanufacturing method for remanufacturing a transmission including a transmission integrated control unit 11, the remanufacturing method including:
disconnecting the sensor on the transmission integrated control unit 11 in the oil pan 10 from the control unit;
the lead-out wire harness is connected with the sensor and the electromagnetic valve in the oil sump 10, and the power supply wire harness formed by connecting the power supply and the lead-out sensor wire harness and the lead-out electromagnetic valve wire harness form an inner change wire 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;
the outer wire harness 13 is connected to the signal conditioning module 14 outside the oil pan 10.
In the invention, the sensor circuit is welded with the electromagnetic valve circuit, the internal change wire bundle 12 is led out through the plug 15, and the oil seepage prevention sealing piece 16 is arranged between the plug 15 and the through hole of the oil pan 10, so that the oil in the speed changer is prevented from seeping when the internal change wire bundle 12 is led out. In a preferred embodiment, the plug 15 is an aircraft connector, preferably a pin-backed connector, and the sealing element 16 is a gasket.
Specifically, a high-temperature-resistant insulating glue is applied to a welding portion between the sensor circuit and the solenoid valve circuit, and after the inner change wire harness 12 (the sensor wire harness, the solenoid valve wire harness, and the power supply wire harness) is fixed by a binding tape, the inner change wire harness bypasses the hydraulic module 10a and the oil suction filter 10b (the inner change wire harness 12 is bent at the hydraulic module 10a and the oil suction filter 10 b), and then the inner change wire harness passes through a through hole in the oil pan 10 and is led out to the outside of the oil pan 10 through the sealing member 16 and the plug-in connector 19.
In the transmission remanufacturing method provided by the present invention, since the internal space of the oil pan 10 is limited, the inner remanufacturing wire harness 12 is preferably a wire harness having a diameter as small as possible, and the outer wire harness 13 is a shielding wire harness capable of shielding an external interference signal.
As shown in fig. 2, the present invention also provides a dual clutch transmission stage pair targeting system, comprising: the control device 21, the test bench 22, the analog quantity acquisition module 23, the analog quantity feedback device 24, and the target transmission 100 obtained by the above transmission control method.
Wherein, on the benchmarking derailleur 100 is fixed in test bench 22 through rack frock 20a, test bench 22 includes the rack motor, the controlling means 21 is stored with the control parameter of control test bench 22, controlling means 21 and test bench 22 signal connection, the drive end of rack motor passes through splined connection in the drive end of benchmarking derailleur 100 for controlling means 21 can give input speed through the drive end of control bench motor, and further drive benchmarking derailleur 100. Since the test stage 22 is driven by the stage motor, the wiring is longer and the signal interference is more easily introduced than the conventional transmission control unit, the outer wire 13 is preferably a shielding wire capable of shielding the external interference signal, and the plug 15 (aircraft connector) and the sealing member 16 (sealing ring) are preferably made of materials with good electromagnetic shielding property.
Further, the benchmarking transmission 100 is in signal connection with the analog quantity acquisition module 23 through the signal conditioning module 14, and the analog quantity acquisition module 23 is in signal connection with the analog quantity feedback device 24 through the CAN line, so that the analog quantity acquisition module 23 CAN acquire the test parameters of the benchmarking transmission 100 and transmit the test parameters to the analog quantity feedback device 24. In the invention, the signal conditioning module 14 transmits a shifting fork position signal of the target transmission 100, an input rotating speed signal of a transmission on the target transmission 100, an actual rotating speed signal of a clutch, a pressure signal of the clutch, a parking position signal and an oil temperature signal of the transmission to the analog feedback device 24 through the analog acquisition module 23; meanwhile, the output speed signal of the transmission on the target transmission 100 is directly transmitted to the analog quantity feedback device 24 through the analog quantity acquisition module 23.
Furthermore, the control device 21 is in signal connection with the analog quantity feedback device 24 through a CAN line, that is, the control device 21 CAN collect the performance parameters of the test bench 22 and transmit the performance parameters to the analog quantity feedback device 24 for controlling the test process of the target transmission 100.
Specifically, an oil temperature measuring unit for measuring the oil temperature of the transmission and an oil temperature adjusting module 101 for adjusting the oil temperature of the transmission are arranged on the oil pan 10 of the target transmission 100. The oil temperature adjusting module 101 regulates and controls the oil temperature of the transmission through a heat exchange inlet and outlet pipe, the oil temperature measuring unit is arranged at the oil drain plug 17 of the oil pan 10, the oil temperature measuring unit collects the oil temperature of the transmission, transmits the obtained oil temperature signal of the transmission to the signal conditioning module 14, and transmits the oil temperature signal to the analog quantity collecting module 23 after the oil temperature signal is processed by the signal conditioning module 14.
In the invention, an input rotating speed measuring unit 102a for collecting the input rotating speed at the driving shaft of the transmission and an output rotating speed measuring unit 102b for collecting the output rotating speed at the output shaft of the transmission are arranged on the target transmission 100, the input rotating speed measuring unit 102a obtains the input rotating speed pulse signal of the transmission in a pulse counting mode and transmits the input rotating speed pulse signal to the signal conditioning module 14, and the signal conditioning module 14 converts the input rotating speed pulse signal into the input rotating speed signal and transmits the input rotating speed signal to the analog quantity collecting module 23 by performing pull-up and pull-down resistance and filtering processing on the input rotating speed pulse signal of the transmission. Referring to fig. 1, the output rotation speed measuring unit 102b measures the output rotation speed pulse of the standard transmission by using the rotation speed measuring laser 10c and the rotation speed measuring reflector 10e disposed on the output half shaft 10d of the standard transmission 100, and transmits the obtained output rotation speed pulse signal of the standard transmission to the secondary meter 10f, and the output rotation speed pulse signal is transmitted to the analog quantity acquisition module 23 by the secondary meter 10 f.
In the invention, the dual-clutch transmission bench alignment test system further comprises an electromagnetic valve control module 25 and a clutch in signal connection with the analog quantity acquisition module 23, and the control device 21 controls the electromagnetic valve control module 25 through the ethernet to complete the control of the clutch and the alignment transmission 100 under the condition that the alignment transmission 100 has a certain idle speed.
Specifically, referring to fig. 2 and 3, the benchmarking transmission 100 further includes an on-off solenoid valve 103, a shift solenoid valve 104, and a direct drive solenoid valve 105; when the control device 21 controls the rack motor to rotate 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 shift fork to a corresponding gear, and controls the direct-drive solenoid valve 105 to engage with the clutch to complete the gear engaging operation, that is, when the shift fork is engaged to a corresponding gear, the direct-drive solenoid valve 105 is further controlled to engage with the clutch, and then the gear engaging is successful.
Further, the clutch pressure signal includes a clutch pressure acquisition signal, the parking position signal, the shift fork position signal and the clutch actual pressure signal can be obtained by acquiring related data through a parking position sensor and a shift fork position sensor which are arranged on a transmission on the standard transmission 100 and a pressure sensor which is arranged on the clutch, the parking position sensor, the shift fork position sensor and the pressure sensor further transmit the parking position signal, the shift fork position signal and the clutch actual pressure signal which are respectively acquired to the signal conditioning module 14 and then the signal conditioning module 14 to the analog quantity acquisition module 23, the analog quantity feedback device 24 can judge whether the parking is in place according to the position feedback quantity acquired by the parking position sensor, and judge the regulation and control of the clutch according to the clutch pressure feedback quantity acquired by the pressure sensor, and determining a gear signal of the target transmission according to the position of the shifting fork and the pressure of the clutch or the rotating speed ratio of the input rotating speed and the output rotating speed of the transmission. In a preferred embodiment provided by the present invention, the actual gear position of the transmission is determined by checking a ratio of the input rotation speed of the transmission measured by the rotation speed measuring unit 102a to the output rotation speed of the transmission measured by the output rotation speed measuring unit 102b in the analog quantity acquisition module 23, so as to ensure that the gear locking is completed.
As the actual gear condition of the transmission is determined by the rotation speed ratio, the actual shifting fork position of the gear of the transmission can be judged according to the rotation speed ratio. In the case where the connection portion of the target transmission 100 and the stage motor does not slip, the input rotation speed may be understood as the drive shaft rotation speed of the target transmission or the drive rotation speed transmitted from the control device 21 to the analog quantity feedback device 24.
Furthermore, in an embodiment of the present invention, the clutch is a dual clutch, and the direct-drive solenoid valve 105 provides a certain pressure to the clutch through a current provided by a voltage, the output pressure acts on a clutch pressure plate to transmit a torque (friction) to drive a clutch driving shaft to rotate, at this time, the signal conditioning module 14 may obtain an actual rotating speed of the clutch by means of pulse counting, and transmit an actual rotating speed signal of the clutch to the analog quantity acquisition module 23, and the analog quantity feedback device 24 may determine a state (slipping, pressing or separating) of the clutch according to a difference between the actual rotating speed of the clutch and the input rotating speed transmitted by the analog quantity acquisition module 23. In detail, when the gear is shifted, the actual rotating speed of the clutch and the input rotating speed have a difference value due to insufficient pressure value of the clutch, and the clutch is in a friction state. After the gear shifting is successful, if the clutch is not operated by mistake, the pressure value of the clutch is enough, the actual rotating speed of the clutch is consistent with the actual rotating speed, namely the difference value is zero, and the clutch is in a compression state; if the two clutches are simultaneously combined due to misoperation, the difference between the rotating speed of the clutches and the input rotating speed is inevitably caused, so that the clutches are worn and even burnt; in neutral, the two clutches are not engaged and the clutches are disengaged. In the present invention, the clutch pressure acquisition signal needs to be calibrated with respect to the output pressure and the voltage, and is stored in the control device 21 in advance.
More specifically, the clutch pressure signal includes a clutch actual pressure signal; since the clutch pressure corresponds to the clutch rotation speed, the analog feedback device 24 can obtain the actual clutch pressure signal in the actual process through the actual clutch rotation speed input in the analog acquisition module 23 and the corresponding relationship between the clutch pressure and the clutch rotation speed, and further feed back the regulation and control of the clutch by combining the clutch pressure acquisition signal obtained by the analog acquisition module 23.
In a specific embodiment provided by the present invention, the clutch includes an odd clutch and an even clutch, and the clutch pressure acquisition signal includes an odd clutch pressure acquisition signal corresponding to an actual rotation speed of the odd clutch output by the odd clutch and an even clutch pressure acquisition signal corresponding to an actual rotation speed of the even clutch output by the even clutch. It can be understood that when the direct-drive solenoid valve 105 is combined with the odd-numbered clutch, the state of the odd-numbered clutch can be judged according to the same principle, namely according to the difference value between the actual rotating speed and the input rotating speed of the odd-numbered clutch, and the regulation and control of the clutch can be fed back according to the corresponding relation between the actual rotating speed of the odd-numbered clutch, the pressure of the odd-numbered clutch and the rotating speed of the odd-numbered clutch and the collected pressure collecting signal of the odd-numbered clutch. Similarly, when the direct-drive solenoid valve 105 is engaged with the even-numbered clutch, reference may be made to the specific principle of engagement with the odd-numbered clutch, and the details thereof will not be described herein.
The analog quantity acquisition module 23 provided by the invention can avoid the problems that the signal transmitted in the actual mapping test process is interfered and the signal magnitude is not matched with the acquisition equipment, so as to provide high-quality signal acquisition. It is understood that the dual clutch transmission bench-to-mapping test system provided by the present invention may not include the analog 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 an acquisition feedback computer, but in other embodiments, the control device 21 may also be other control systems such as P L C, and is not limited specifically.
The dual-clutch transmission bench mapping test system further comprises an incubator 27 for testing the low-temperature performance of the targeted transmission 100, a temperature sensor for measuring the temperature of the incubator is arranged in the incubator 27, and the temperature sensor transmits a measured temperature signal of the incubator to the analog feedback device 24 through the control device 21. That is, the control device 21 according to the present invention transmits the acquired rotation angle, driving rotation speed, driving torque, and oven temperature of the gantry motor to the analog feedback device 24, so as to further feed back the adjustment of the target transmission 100.
More specifically, if the present invention relates to measurement of the clutch oil temperature to obtain a more comprehensive basic performance index of the targeted transmission 100 in order to complete the development of the transmission hydraulic-electric control, the transmission efficiency, the vibration noise quality, and the like, the measurement of the clutch oil temperature can be completed by supplying power to the input end of the clutch oil temperature sensor by using a precision voltage-stabilized power supply, connecting a voltage-dividing resistor in series, completing the measurement of the voltage at the end of the thermistor sensor for measuring the clutch oil temperature in the transmission by the analog acquisition module 23, and finally converting the voltage into the clutch oil temperature value corresponding to the measured voltage amount. In a preferred embodiment, the voltage dividing resistor is a precision resistor.
In conclusion, the invention provides a simple and reliable transmission modification method, a benchmarking transmission is obtained by the modification method, a low-cost wet type dual-clutch transmission bench benchmarking test system is built based on various test hardware modules, the test function of the system basically covers corresponding transmission development test projects, and the benchmarking transmission is locked at a fixed gear under the condition that a prototype bench is not required to be rapidly controlled, so that basic performance parameters of the benchmarking transmission on the test bench are obtained.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
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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| CN201811618937.XA CN111442922B (en) | 2018-12-28 | 2018-12-28 | Calibration-correcting remanufacturing method and testing system for dual-clutch transmission rack |
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| CN201811618937.XA CN111442922B (en) | 2018-12-28 | 2018-12-28 | Calibration-correcting remanufacturing method and testing system for dual-clutch transmission rack |
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| CN111442922A true CN111442922A (en) | 2020-07-24 |
| CN111442922B CN111442922B (en) | 2022-07-01 |
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Citations (10)
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| CN1345415A (en) * | 1999-04-06 | 2002-04-17 | 腓特烈斯港齿轮工厂股份公司 | Device for measuring gearbox oil temperature |
| CN102841542A (en) * | 2011-08-10 | 2012-12-26 | 同济大学 | In-loop simulation test bed for hardware of transmission control unit of dry-type dual clutch transmission |
| CN103196669A (en) * | 2013-03-22 | 2013-07-10 | 同济大学 | Double-clutch automatic gearbox hardware-in-loop dynamic test rack |
| CN204420055U (en) * | 2015-01-28 | 2015-06-24 | 安徽江淮汽车股份有限公司 | A kind of double clutch gearbox oil sump |
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| CN111442922B (en) | 2022-07-01 |
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