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Hydraulic automatic gearbox gear-shifting control method

A technology of automatic transmission and control method, applied in the direction of transmission control, elements with teeth, belt/chain/gear, etc., can solve the problem of single shifting mode of hydraulic automatic transmission, and achieve the effect of improving mobility

Inactive Publication Date: 2018-06-12
BEIBEN TRUCKS GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a hydraulic automatic transmission gear shift control method to solve the problem that the matching hydraulic automatic transmission gear shift mode on the market is single

Method used

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  • Hydraulic automatic gearbox gear-shifting control method
  • Hydraulic automatic gearbox gear-shifting control method

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Embodiment Construction

[0012] In order to make the purpose, contents and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the examples.

[0013] The invention provides a gear shift control method of a hydraulic automatic transmission, which specifically includes the following steps:

[0014] S1. Under different road conditions, the vehicle status and driver's manipulation parameters are collected through sensors, and the two shift control parameters of vehicle speed and accelerator pedal position (accelerator opening) are used as the main control parameters, including engine oil temperature, water temperature, and system pressure. , brake pedal signal, steering signal, transfer case gear, environmental parameters, road surface conditions, load and other control parameters; the sensors include accelerator position sensor, speed, pressure, temperature sensor, oil temperature, pressure ...

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Abstract

The invention discloses a hydraulic automatic gearbox gear-shifting control method. Under different road conditions, vehicle conditions and driver control parameters are collected through a sensor tobe sent to an electronic controller for in-out storage, and an original preset control program parameters in the electronic controller are supplemented and corrected; corrected data are stored in theelectronic controller to form different gear-shifting modes; and when the running condition, the travelling environment and the driver operation of a vehicle change, the electronic controller enablesthe data collected in real time to be compared with stored data and to be processed, the vehicle running state is identified, and the best gear-shifting strategy is selected to issue a corresponding gear-shifting command to a gearbox for controlling a gear-shifting executing mechanism for gear shifting. By means of the hydraulic automatic gearbox gear-shifting control method, a heavy high-maneuvering cross country vehicle is mainly used for working under the complex travelling condition, the vehicle maneuverability, flexibility and operation convenience are improved, and the gear shifting control rule suitable for the actual travelling working condition is built.

Description

technical field [0001] The invention belongs to the technical field of power transmission systems of heavy-duty commercial vehicles, and in particular relates to a shift control method of a hydraulic automatic transmission. Background technique [0002] Heavy-duty high-mobility off-road vehicles have large load changes and extremely complex road conditions. They often pass through harsh areas such as swamps and deserts. They have high requirements for power, passability, safety and intelligence. General manual transmission It is difficult to adapt to such complex changes. Although the structure of the hydraulic automatic transmission is relatively complex and the efficiency is relatively low, with the good adaptability of the hydraulic torque converter, it is easy to control and operate under the conditions of off-road and frequent starting. Its advantages are in heavy off-road vehicles. performance is particularly prominent. The matching hydraulic automatic transmissions ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H59/18F16H59/24F16H59/44F16H61/02
CPCF16H59/18F16H59/24F16H59/44F16H61/0204F16H2059/183
Inventor 刘春颖郑长松薛钢白金旺苏夏李红羽李森
Owner BEIBEN TRUCKS GRP
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