Control method for relieving resonance of vehicle provided with hydraulic automatic transmission

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Control method for relieving resonance of vehicle provided with hydraulic automatic transmission

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LIU QIANG / CAO YONG / GAO LONG / ZONG WEI / GUO TAIMIN / YANG LEI / WANG HONGZHI / WU YUDE / WANG SHENGTAO / LI ZHIZONG

Abstract

The invention discloses a control method for relieving the resonance of a vehicle provided with a hydraulic automatic transmission. In the locked state of a hydraulic torque converter, when it is judged that the resonance degree of the vehicle meets a condition, the hydraulic torque converter is controlled to switch from the locked state to a started state; and after lasting for time t in the started state, the hydraulic torque converter is controlled to switch from the started state to the locked state. According to the control method, automatic transmission software is utilized to monitor the resonance degree of the vehicle in real time; in case of resonance, the hydraulic torque converter is switched to the started state to be in flexible connection so as to relieve the resonance of thevehicle, and driving comfort is improved; and a determination condition of the resonance is set, so that misjudgment of the resonance is avoided.

本发明公开了一种缓解液力自动变速器整车共振的控制方法,液力变矩器在闭锁状态下，判断整车的共振程度符合条件时，控制液力变矩器由闭锁至打开状态；液力变矩器在打开状态持续时间t后，再控制液力变矩器由打开状态进入闭锁状态，利用自动变速器软件实时监测车辆共振程度，发生共振时用液力变矩器的打开状态，处于柔性连接来缓解整车共振，提高驾驶舒适性；设定共振的判定条件，避免了对共振的误判。

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Document information

Title :

Control method for relieving resonance of vehicle provided with hydraulic automatic transmission

Additional title:

一种缓解液力自动变速器整车共振的控制方法

Contributors:

LIU QIANG (author) / CAO YONG (author) / GAO LONG (author) / ZONG WEI (author) / GUO TAIMIN (author) / YANG LEI (author) / WANG HONGZHI (author) / WU YUDE (author) / WANG SHENGTAO (author) / LI ZHIZONG (author)

Publication date :

2020-10-02

Type of media :

Patent

Type of material :

Electronic Resource

Language :

Chinese

Classification :

IPC:

F16H Getriebe , GEARING / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES