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Energy Saving Planning System for Commercial Vehicle Driving in Mountain Area
Technical Paper
2021-01-1279
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The mountainous roads are very complex and changeable. When commercial vehicles are driving in mountain areas, the using of brakes can not only reduce the fuel economy, but also increase the brake wear. The aim of this system is utilizing the terrain changes of mountainous roads to guide the driver to control the accelerator pedal reasonably through the mutual transformation of kinetic energy and gravitational potential energy for reducing the energy loss caused by braking on downhill road. The theoretical control points of releasing the accelerator pedal on the uphill road are determined based on the road digital elevation model (DEM) information and the vehicle dynamic model. In order to further research, the response capability of the driver personality characteristics to the vehicle speed planning system and determine the reaction rules of the driver individual to this system, the operation characteristics of different drivers under the system prompting are analyzed and the planning effects of this system under different driving conditions are evaluated by the Driver-In-Loop Test (DILT). The test results show that the economic speed planning of the mountainous road can improve the fuel economy by 5.113%. The planning system can be used in different driving systems and automatically adapt to the driver's individual characteristics. The system has a promising prospect in improving the fuel economy of commercial vehicle driving on the mountainous road.
Authors
Citation
Huang, B., Su, R., Zhang, J., Wang, S. et al., "Energy Saving Planning System for Commercial Vehicle Driving in Mountain Area," SAE Technical Paper 2021-01-1279, 2021, https://doi.org/10.4271/2021-01-1279.Also In
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