Control system and control method of fluid coupling type transmission

A control system and hydraulic coupling technology, which is applied in transmission control, components with teeth, belts/chains/gears, etc., can solve the problems of vehicles not running normally, frustration, double gears, etc., and achieve optimal change The effect of gear quality and transmission efficiency

Inactive Publication Date: 2020-10-23
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structure of the dual-clutch transmission is relatively complex, and there are many control units. If the control strategy is not coordinated properly, the dual-clutch transmission will produce a serious sense of frustration during the shifting process, and even double gears will occur, resulting in the vehicle not being able to drive normally.

Method used

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  • Control system and control method of fluid coupling type transmission
  • Control system and control method of fluid coupling type transmission

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Embodiment Construction

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are the Some embodiments of the invention are not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0020] A control system suitable for a hydraulic coupling transmission, including an automatic transmission electronic control system and an automatic transmission hydraulic system;

[0021] The hydraulic system of the automatic transmission includes an oil pump, an oil supply system, a gear shift system, and a hydraulic torque converter lock-up and cooling management...

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Abstract

The invention provides a control system and a control method of a fluid coupling type transmission. The control system comprises an automatic transmission electronic control system and an automatic transmission hydraulic system; the automatic transmission hydraulic system comprises an oil pump, an oil supply system, a shifting system and a hydraulic torque converter locking and cooling managementsystem, and the automatic transmission electronic control system comprises a sensor, a TCU and a solenoid valve. In the invention, the control system and a control strategy of the fluid coupling typetransmission can realize real-time communication of an engine and a transmission, guarantee that engine input revolving speed, torque and transmission gear satisfy needs of vehicle operations, meanwhile, also can actively adjust a transmission operating state according to will of a driver, and guarantee that the automatic transmission can work according to preset optimal control rules under any working condition, thereby, can achieve optimal shifting quality and transmission efficiency.

Description

technical field [0001] The invention belongs to the technical field of automatic transmissions, and in particular relates to a control system and a control method suitable for hydraulic coupling transmissions. Background technique [0002] At present, domestic automatic transmissions are developing very rapidly. As a new type of automatic transmission, the hydromechanical dual clutch transmission is composed of a hydraulic torque converter and a dual clutch transmission. The gear shifting of the dual clutch transmission is achieved through the cooperation of two clutches and the control of the clutch actuator and the gearshift actuator without power interruption, and its transmission principle is similar to that of the AMT transmission. The transmission mechanism is mostly mechanical transmission. The cooperation of the clutch makes the shift speed faster than that of AMT, so it has higher power and fuel economy. However, the structure of the dual-clutch transmission is re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/48F16H61/04F16H61/02F16H59/72
CPCF16H59/72F16H61/0265F16H61/04F16H61/48
Inventor 徐立友胡晨明刘孟楠闫祥海李贤哲
Owner HENAN UNIV OF SCI & TECH
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