In-loop simulation test bed for hardware of transmission control unit of dry-type dual clutch transmission

Abstract

The invention relates to an in-loop simulation test bed for hardware of a transmission control unit (TCU) of a dry-type dual clutch transmission (DCT), comprising a synchronizer execution motor, a PC (personal computer) machine, an AutoBox prototype controller, the electronic control unit TCU (transmission control unit), a clutch execution motor, a driving control mechanism and a clutch assembly, wherein the TCU is respectively connected with the synchronizer, the PC machine, the AutoBox prototype controller, the clutch execution motor, the driving control mechanism and the clutch assembly, the PC machine is connected with the AutoBox prototype controller, and the clutch execution motor is connected with the clutch assembly. Compared with the prior art, the in-loop simulation test bed has the advantages that service conditions of the TCU are more close to the working condition of a real vehicle and prediction and evaluation of a dry-type DCT control policy can be more accurate.

Description

technical field [0001] The invention relates to a simulation test bench for an electronic control unit of an automatic transmission, in particular to a hardware-in-the-loop simulation test bench for an electronic control unit of a dry double-clutch automatic transmission. Background technique [0002] A dry dual clutch automatic transmission (Dual Clutch Transmission, DCT for short) is composed of a fixed shaft gear transmission mechanism, a sensor, an electronic control unit (Transmission Control Unit, TCU for short), a synchronizer and a dual clutch actuator. As a new type of automatic transmission, it not only inherits the advantages of simple structure, high transmission efficiency and low cost of MT and AMT, but also overcomes the lack of power interruption during the shifting process of MT and AMT, so it has attracted more and more attention from the industry. However, domestic research in this area is still in its infancy, and there are very few hardware-in-the-loop s...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing DCT electronic control unit hardware-in-the-loop simulation test benches are based on the xPC target machine and board platform. The download of the model and the configuration process of the tool chain are relatively cumbersome, and there is no measurement calibration similar to CANape or ControlDesk. Tools to monitor the running status of the simulation experiment and modify the control parameters of the strategy or the matching parameters of the model online

In addition, in the existing DCT electronic control unit hardware simulation test bench, most of the executive motors of the dual clutch are no-load, that is, the actual dual clutch module is lacking, so it is difficult to simulate the real vehicle environment, and the coordinated control of the dual clutch It is the key and difficult point of DCT control, which makes it difficult to apply the control strategy tested and verified on the test bench to the real vehicle, and may have no guiding effect

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