Design and Control of Hybrid Electric Power System for a Hydraulically Actuated Excavator

Document Number: 2009-01-2927

Date Published: October 2009

Author(s):
Seungjin Yoo - Doosan Infracore Co., Ltd.
Sangjun An - Doosan Infracore Co., Ltd.

Abstract:
In this paper, a prototype hybrid excavator that incorporates two electric motors and an ultra-capacitor module in a commercial diesel-engine-powered hydraulic excavator is presented. The features of the developed hybrid excavator include (1) electric propulsion of the swing system, (2) electric power assistance for the diesel engine and (3) energy regeneration using an ultra-capacitor module. By designing a suitable swing control and power management algorithm, the developed hybrid electric power system can significantly improve the fuel economy of the diesel-powered hydraulic excavator, without any performance degradation or driveability deterioration.

File Size: 385K
Product Status: In Stock

See other papers presented at SAE 2009 Commercial Vehicle Engineering Congress & Exhibition, October 2009, Rosemont, IL, USA, Session: Model Based Design and Software Development (Part 1 of 2)

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