The invention relates to an intermediate shaft brake control method and device, equipment and a medium, and is applied to the technical field of vehicles, and the method comprises the steps that a current rotating speed difference and a target rotating speed difference are determined according to a current intermediate shaft rotating speed, a current output shaft rotating speed, a target gear and braking task related parameters; and according to the current rotating speed difference, the target rotating speed difference, the target gear and the brake task related parameters, the rotating speed difference of opening an inflation and exhaust electromagnetic valve at the same time, the rotating speed difference of closing the inflation electromagnetic valve and the rotating speed difference of closing the exhaust electromagnetic valve are determined, and then the target rotating speed difference descent rate, the inflation electromagnetic valve duty ratio and the exhaust electromagnetic valve duty ratio are determined. If the current rotating speed difference is between the rotating speed difference of closing the inflation electromagnetic valve and the rotating speed difference of opening the inflation and exhaust electromagnetic valve at the same time, opening the inflation electromagnetic valve and the exhaust electromagnetic valve according to the duty ratio of the inflation electromagnetic valve and the duty ratio of the exhaust electromagnetic valve; and the inflation electromagnetic valve and the exhaust electromagnetic valve are sequentially closed along with reduction of the current rotating speed difference. And a proper rotating speed difference can be obtained for gear engagement.
本申请涉及一种中间轴制动器的控制方法、装置、设备及介质,应用于车辆技术领域,方法包括:根据当前中间轴转速、当前输出轴转速、目标档位和制动任务相关参数,确定当前转速差和目标转速差。根据当前转速差、目标转速差、目标档位和制动任务相关参数,确定同时开启充气排气电磁阀的转速差、关闭充气电磁阀的转速差和关闭排气电磁阀的转速差,进而确定目标转速差下降速率、充气电磁阀占空比和排气电磁阀占空比。若当前转速差在关闭充气电磁阀的转速差和同时开启充气排气电磁阀的转速差之间,按照充气电磁阀占空比、排气电磁阀占空比开启充气电磁阀和排气电磁阀;随着当前转速差的减小依次关闭充气电磁阀和排气电磁阀。可获取合适的转速差挂挡。
Control method, device and equipment of intermediate shaft brake and medium
中间轴制动器的控制方法、装置、设备及介质
2024-07-05
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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