Automatic transmission sliding friction fault judgment method, device and equipment and automatic transmission

• Main Authors: WEI WENSHU, XIN CAIYUN, LI QIANG
• Format: Patent
• Language: Chinese; English
• Published: 08.04.2022
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

The embodiment of the invention provides a sliding friction fault judgment method, device and equipment for an automatic transmission and the automatic transmission. The sliding friction fault judgment method for the automatic transmission comprises the steps that in response to a received gear shifting instruction, gear shifting operation is executed, and the gear shifting instruction is used for indicating the automatic transmission to be switched to a target gear from a current gear; in the process of executing the gear shifting operation, in response to the fact that the gear shifting instruction reaches the preset percentage, whether the automatic transmission has a galloping event or not is judged; under the condition that the automatic transmission has a galloping event, adding one to the sliding friction count value of the target gear; whether the sliding friction counting value of the target gear exceeds a preset value or not is judged; and in response to the fact that the sliding friction count valu