The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 05, 2025
Filed:
Jun. 09, 2022
Jiangsu University, Zhenjiang, CN;
Zhen Zhu, Zhenjiang, CN;
Jie Sheng, Zhenjiang, CN;
Yingfeng Cai, Zhenjiang, CN;
Long Chen, Zhenjiang, CN;
Changgao Xia, Zhenjiang, CN;
Haobin Jiang, Zhenjiang, CN;
Xiang Tian, Zhenjiang, CN;
Jiangyi Han, Zhenjiang, CN;
Jianguo Zhu, Zhenjiang, CN;
Falin Zeng, Zhenjiang, CN;
JIANGSU UNIVERSITY, Zhenjiang, CN;
Abstract
A mechanical-electrical-hydraulic composite transmission device and a control method thereof are provided. The device includes an input shaft assembly, a power-split assembly, a hydraulic transmission assembly, an electrical variable transmission assembly, a mechanical transmission assembly, a power-convergence assembly, and an output shaft. Three types of transmission modes including single transmission modes, power-split composite transmission modes, and power-convergence composite transmission modes are implemented by controlling engagement and disengagement of clutches and a brake. Free switching between various transmission modes is realized, the requirements of engineering machinery for a transmission device with multiple modes in different working conditions are satisfied, the engine power utilization is improved, and the fuel economy is increased. The shift impact is effectively reduced and the speed ratio adjustment range is expanded. The hydraulic transmission enables quick startup and stable operation and implements speed variation and direction change easily and rapidly without causing impact.