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Non-clutch AMT (Automatic Manual Transmission) control system and method

A clutchless, control system technology, applied in transmission control, components with teeth, belts/chains/gears, etc., can solve problems such as restricting shifting quality, optimize shifting quality, shorten shifting time, The effect of improving shifting stability

Active Publication Date: 2016-09-28
北理华创(佛山)新能源汽车科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the invention still adopts the traditional AMT gear shifting strategy, that is, the dynamic control of the clutchless AMT gear shifting process is carried out by controlling the mode switching of the motor, and the self-adjusting speed of the driving motor is used to match the target gear and the current vehicle speed. , because the driving motor mode switching process of this scheme is not controlled by the TCU, the shifting process largely depends on the internal control of the driving motor, thus restricting the further improvement of the shifting quality

Method used

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  • Non-clutch AMT (Automatic Manual Transmission) control system and method

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Embodiment Construction

[0046] In order to better understand the present invention, the present invention is described in detail below in conjunction with specific embodiment, but obviously can carry out different modification and modification to the present invention and not exceed the broader spirit and scope of the present invention that appended claims limit . Accordingly, the following examples are meant to be illustrative and not limiting.

[0047] The clutchless AMT control system of the present invention adopts the AMT configuration without clutch and synchronizer. The gearbox is basically the same as the traditional MT. The reverse gear is canceled, and the shift actuator and TCU are added. The following combination figure 1 , 4 Describe the technical scheme of described control system in detail:

[0048] A clutchless AMT control system includes an MCU and a TCU, and the MCU is connected with the TCU. It includes a VCU and a BMS, and the VCU is connected to the MCU and the BMS respectivel...

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Abstract

The invention relates to a non-clutch AMT (Automatic Manual Transmission) control system. The non-clutch AMT control system comprises an MCU (Microprogrammed Control Unit) and a TCU (Transmission Control Unit) which are interconnected. Compared with the prior art, the non-clutch AMT control system has the beneficial effects that after the system enters a shifting process, the TCU can take over the control right of a driving motor, so that the technical effects of optimizing the shifting quality, reducing the shifting time and improving the shifting stability can be achieved. The invention also relates to a non-clutch AMT control method. The non-clutch AMT control method comprises a speed regulating stage; the motor in the shifting process of the method is in a torque mode; the speed regulating stage comprises a motor synchronous speed regulating stage and a mechanical synchronous speed regulating stage. Compared with the prior art, the non-clutch AMT control method has the beneficial effects that the shifting process is divided into six stages through the control method, namely, an unloading stage, an idling stage, an electronic synchronizing stage, a mechanical synchronizing stage, a gear engaging stage and a loading stage, and thus the technical effects of greatly reducing the overall shifting time, reducing the impact in gear engaging, and prolonging the service lives of mechanical parts such as a synchronizer can be achieved.

Description

technical field [0001] The invention relates to a clutchless AMT transmission, in particular to a clutchless AMT control system and method. Background technique [0002] AMT (Automatic Manual Transmission, electronically controlled mechanical automatic transmission) is improved from the traditional manual gear mechanical transmission. AMT combines the advantages of AT (automatic) and MT (manual) transmission devices. It can not only realize the automatic transmission function, but also retain the advantages of high efficiency, low cost, simple structure and easy manufacture of the original manual transmission gear transmission. AMT has been widely used in conventional commercial vehicles. However, in the prior art, most pure electric commercial vehicles still use the original direct drive system, and the performance of climbing and high-speed driving is weakened. In addition, since the direct drive system needs to use a high-torque motor, the powertrain is not only expensi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/32F16H61/02
CPCF16H61/0204F16H61/32
Inventor 林程董爱道周辉程兴群时军辉
Owner 北理华创(佛山)新能源汽车科技有限公司
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