Telematics Gateway and Power Saving Method for Electric Vehicles …

13 Июн 2014 | Author: | Комментарии к записи Telematics Gateway and Power Saving Method for Electric Vehicles … отключены
BAIC E150 EV Electric Cars

Telematics Gateway and Power Saving Method for Electric Vehicles

By: Po-Lun Chang, Yu-Xin Guo and Mu-Der Jeng

Abstract and Excerpt from: Systems Man and Cybernetics (SMC), 2011 IEEE International Conference on

Abstract- Based on the characteristics of electric vehicles (EV), this paper proposes a conceptual framework utilizing the Controller Area Network (CAN) bus technology, OBD-II connector and the existing telematics service systems to construct a novel telematics gateway for EV. Vehicle gateway interface has been applied to telematics service systems for many years but not to EV. The proposed framework of telematics gateway establishes a three layers’ architecture, namely, the physical layer, data link layer, and application layer.

The telematics gateway needs to resolve two issues: One is to simplify the framework of EV gateway interface and the other is to ensure the application scenarios for power saving and location based service (LBS). Using the framework of telematics gateway, the entire service network can meet different application scenarios for EV.

The evolution of telematics can be divided into three generations. The first generation: vehicle to zero (V2Z) is a basic and independent telematics service system. The second generation: vehicle to infrastructure (V2I) is now the popular telematics service system in the world. The third generation: vehicle to extension (V2X) which includes V2V, V2I and V2P (vehicle to person) is the developing telematics for many value-added applications but under the limitation of mobile network bandwidth. The existing telematics server systems consist of server applications, a short messaging service center (SMSC) connection component, the related servers’ connection component, HTTP, and TCP/IP.

The server applications provide client applications in a vehicle with telematics services such as emergency service, remote door unlocking, and remote vehicle diagnostic service through the wireless application protocol (WAP) gateway in a mobile network. Most of the existing telematics services have been dependently developed and provided on specific systems of a mobile network. This creates a situation where services may not be available on other mobile networks.

Also, telematics services are used only for engine vehicles.

Energy and environment are the two fundamental problems of the modern world’s sustainable development. With the development of economy, the quantities of vehicle maintained a rapid yearly growth and the problem of energy and environment becoming more austere day by day. Electric motor car has many advantages such as non-polluting, high energy efficiency, energy diversification, simple structural parts, and convenient to maintain etc. It is a good way to relieve the energy and environment problem which becomes more and more serious. In order to decrease weight, the electric motor cars have adopted electric equipment as much as possible to replace the traditional mechanical and hydraulic equipment.

The increase of electric equipment not only decreases the weight of car, but also brings forward a higher demand to the car’s communication system. To date, CAN bus is the most … and developable bus technology. It is a serial communicational network that can efficiently support distributed control and real-time control. Controller Area Network has many special characteristics so that it can be popularly applied in cars. CAN-bus technology SAE J1939 and controlling the nodes through distributed control method have been proposed to build an electric motor car’s body network system.

BAIC E150 EV Electric Cars

The telematics service system proposed by this article has the advantage of providing value added applications of power saving and location based service for EV.

In the telematics service system, vehicle gateway interfaces with OSI model 7 layer’s protocols including the CAN bus and OBD-II have been studied and applied to engine vehicles but not to EV. With the modern world’s development of green technology and green ITS, telematics service system and EV have become very important issues for environmental protection. Therefore, this paper proposes a novel and conceptual framework of telematics gateway for EV using CAN bus, OBD-II connector and vehicle gateway interface in the telematics service system.

The proposed framework of telematics gateway establishes a three layers’ architecture, namely, the physical layer, data link layer, and the application layer. The telematics gateway needs to simplify the conceptual framework of EV gateway interface. In addition, application scenarios of power saving and LBS are proposed to verify the benefits of telematics gateway interface.


Moreover, other value-added application scenarios also can be realized on the conceptual framework of telematics gateway for EV.

The rest of this paper is organized as follows. In Section II, the preliminaries of vehicle gateway interface and basic telematics gateway for EV are introduced. Section III then thoroughly discusses the proposed conceptual framework of telematics gateway.

In Section IV, using proposed framework of telematics gateway, two application scenarios with telematics gateway are presented and the benefits for EV are verified. Conclusions are finally drawn in Section V along with recommendations for future research.

BAIC E150 EV Electric Cars
BAIC E150 EV Electric Cars
BAIC E150 EV Electric Cars
BAIC E150 EV Electric Cars
BAIC E150 EV Electric Cars
BAIC E150 EV Electric Cars
BAIC E150 EV Electric Cars

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