Chongqing University

Chongqing University of Technology

Chongqing Changan Automobile Co., Ltd.

Chongqing Hao Han Technology Company Limited

Chongqing Changan New Energy Automobile Technology Co., Ltd.

Jianjun Hu

Hui Li

Yi Wang

Ling Su

Anjian Zhou

Minghui Hu

Datong Qin

Yan Yang

Yu Liu

Wankai Shi

Dongye Sun

Chunyun Fu

Changhui Yang

Guoqing Jin

Changhong Du

Juke Liang

Gang Zhu

Dongyang Wang

Hongbin Xu

Chenghao Deng

Kaibin Cao

The disclosure discloses a transmission system capable of implementing four-wheel drive and an operating model thereof. The transmission system includes an odd shift motor, an even shift motor, a front-wheel drive shaft, a rear-wheel drive shaft, a front-wheel output shaft gear disposed on the front-wheel drive shaft, and a rear-wheel output shaft gear disposed on the rear-wheel drive shaft. The front-wheel output shaft gear and the rear-wheel output shaft gear are connected by a front/rear drive shaft coupling sleeve. In the disclosure, coordinated control of two motors allows the motors to operate with high efficiency to the maximum, which improves the efficiency of the transmission system. A four-wheel drive model and a two-wheel drive model are implemented through the coordinated control of two motors. Moreover, in the disclosure, sensor information is used to synchronously control a rotational speed during gear shift, which can reduce the impact during the gear shift.

Transmission system capable of implementing four-wheel drive and operating model thereof

An intelligent rolling contact fatigue testing system and testing method therefor, including a main testing system (), a loading system () and a subsidiary testing system (), and further including a testing device, wherein the testing device includes a light source (S), a CCD camera (S) and a monitoring assistance device (S), and during testing, a roller test specimen () and an subsidiary testing piece () are provided in the monitoring assistance device (S) after being rolled in contact with each other for a certain time, and the roller test specimen () and the rotating brush (S) are rotated simultaneously in a state in which the lubricating oil is sprayed, and the CCD camera (S) dynamically collects the surface image of the roller test specimen (), and then performing quantization evaluation on a fatigue failure state by image preprocessing, image processing and image post-processing.

Intelligent rolling contact fatigue testing system and testing method therefor

Growing community of inventors

Chongqing, China

Jianjun Hu