Speed changer synchronizer synchronous self-adaptation control method and system

A technology of self-adaptive control and control system, applied in the direction of transmission control, components with teeth, belt/chain/gear, etc., can solve problems such as large impact, change in driving experience, deterioration, etc., to achieve uniform execution results and reduce The effect of computation

Active Publication Date: 2018-09-07
吉泰车辆技术(苏州)有限公司
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Problems solved by technology

[0004] Since the control goal of the synchronization process is to complete smooth synchronization actions under different speed differences within a limited time period, if the synchronization position is not accurate, it may cause problems such as: too long pre-synchronization time, large impact at the beginning of synchron

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  • Speed changer synchronizer synchronous self-adaptation control method and system
  • Speed changer synchronizer synchronous self-adaptation control method and system
  • Speed changer synchronizer synchronous self-adaptation control method and system

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[0045] 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 embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0046] In order to make the above objectives, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] The present invention focuses on solving how to offset the change of the synchronization position value caused by the wear of the synchronization ring. Therefore, in simple...

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Abstract

The invention discloses a speed changer synchronizer synchronous self-adaptation control method and system. The method comprises the steps that data acquiring and effectiveness judgment are conducted,specifically, operation data of a synchronizer in the current synchronous process are acquired, whether all the data belong to effective data or not are judged, and synchronizing force in the currentsynchronous process is recorded when all the data are effective data; stiffness deformation of a shifting fork under the action of the synchronizing force is obtained through calculation; and a new synchronous position value is obtained through calculation and stored in a storage of a gear shifting control system in a replacing mode to serve as a subsequent gear engaging reference. In the synchronous self-adaptation process, the effective data can be prejudged emphasically, unnecessary synchronous self-adaptation errors are prevented, and calculation burden is greatly reduced; and the adoptedupdated gear shifting synchronous position value is still evaluated, thus, in the process from the beginning to the end of the service life, the gear shifting evaluation standard is unchanged, and the actuating results of gear shifting are kept uniform.

Description

technical field [0001] The invention relates to the technical field of automatic transmissions, in particular to a synchronization adaptive control method and system for a transmission synchronizer. Background technique [0002] Automatic transmissions are increasingly popular in the market, and users have increasingly stringent requirements on the performance of automatic transmissions. For developers, it is an inevitable requirement to ensure that the performance of the transmission, especially during its life cycle, remains stable. [0003] The transmission with synchronizer structure often needs to use the synchronous position value as the reference signal of the transmission controller when shifting gears. When the shift stroke sensor monitors that the shift fork movement is close to or reaches the pre-synchronization position on the mechanical design value, The transmission controller needs to start applying synchronizing force to the synchronizer to achieve synchroni...

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Application Information

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IPC IPC(8): F16H61/04
Inventor 楼信俊惠无垠司文
Owner 吉泰车辆技术(苏州)有限公司
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