Integrated Control of In-wheel Motor and Electronic Limited Slip Differential for Lateral Stability and Maneuverability Seoul National Univ

Format:

Book

Conference/Event

Author/Creator:

Cha, Hyunsoo, author.

Contributor:

Joa, Eunhyek

Park, Jaeyong

Park, Kwanwoo

Yi, Kyongsu

Conference Name:

SAE WCX Digital Summit (2021-04-13 : Live Online, Pennsylvania, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2021

Summary:

This paper presents an integrated control of in-wheel motor (IWM) and electronic limited slip differential (eLSD) to enhance the vehicle lateral stability. The two actuators are utilized in the proposed controller to achieve separate purposes. The IWM controller is designed to modify the understeer gradient for enhanced handling characteristic. The eLSD controller is devised to improve the lateral stability to prevent oversteer in a severe maneuver. The proposed algorithm consists of a supervisor, upper level controller and lower level controller. The supervisor determines a yaw rate reference based on a understeer gradient to be modified by IWM control. Upper-level controller is designed to generate a desired yaw moment for the target motion. In the lower-level controller, the desired yaw moment is converted to the control inputs for IWMs in the front wheels and eLSD at the rear axle. The proposed algorithm has been validated via computer simulation and vehicle tests. In the simulation results, the performance of integrated control is compared with IWM control, eLSD control and uncontrolled vehicle. The vehicle test results show that the integrated control of IWM and eLSD enhances the vehicle lateral stability

Notes:

Vendor supplied data

Publisher Number:

2021-01-0974

Access Restriction:

Restricted for use by site license