Economy Performance Simulation and Test Validation of a Sample Vehicle with Two-Speed Dedicated Electric Transmission Beijing New Energy Vehicle Technology Innovation Center Company,

Format:

Book

Conference/Event

Author/Creator:

Zhao, Qian, author.

Contributor:

Ma, Yongzhi

Xin, Yu

Yang, Lianghui

Conference Name:

SAE 2020 Vehicle Electrification and Autonomous Vehicle Technology Forum (2020-12-03 : Shanghai, China)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2020

Summary:

Multi-speed transmissions can improve power and economy performance of battery electric vehicles (BEVs), thus becoming an inevitable trend in automotive industry. A two-speed dedicated electric transmission (2DET), which can realize switching of two gear ratios through two wet clutches, is explained firstly. Secondly, 2DET is developed and a prototype is assembled in a BEV of Beijing Electric Vehicle Company Limited (BJEV). Thirdly, the differences of new European driving cycle (NEDC) and China light duty vehicle test cycle passenger (CLTC-P) are compared. Fourthly, the parameters of battery cell are tested and a simulation model of the whole vehicle with 2DET is built. Finally, vehicle economy performance under NEDC and CLTC-P is simulated, and the results are validated in bench tests. Comparison shows that the economy simulation results match the test results, and the vehicle economy under CLTC-P is better than NEDC, with an increase of 1.16%

Notes:

Vendor supplied data

Publisher Number:

2020-01-5126

Access Restriction:

Restricted for use by site license