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

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

technical field [0001] The invention relates to the field of transmission testing, in particular to a method and a testing system for benchmarking and reforming a double-clutch transmission bench. Background technique [0002] 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. [0003] At prese...

AI Technical Summary

Problems solved by technology

[0003] At present, on the one hand, distributed transmission control units are more common in the field of automatic transmissions. In this type of automatic transmission, the 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. Connect the rapid control prototype 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 delivery cycle. If only a single transmission is tested for benchmarking, it will form a large resource waste

[0004] On the other hand, the remanufacturing process of the integrated transmission is complicated, and it is not feasible to apply the remanufacturing scheme of the mainstream distributed transmission control unit

The wiring harnesses on the integrated transmission controller unit are all integrated on the transmission controller circuit board, and only the transmission CAN line and the power supply interface are reserved for the transmission housing. To realize the benchmarking reformation, it is necessary to solve the wiring harness space layout, welding process, insulation, sealing and Resistant to problems such as the working environment of the transmission, it is difficult to complete the benchmarking technology when the sensor model is unknown and there is no signal processing circuit inside the transmission

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