Kyeong-Seob Kim

The implementation of start stop system with the OBD-II interface in the automotive smart key system

Along with the growing needs for the low energy consumption technology and the strengthening vehicle environmental regulations, the researches on the start stop system, which stops the engine on idle, have been briskly carried out around the automobile makers before the appearance of the alternative energy. In addition, the automobile makers are trying to popularize the start stop system by combining the system to the generalized smart key system to not only arouse purchasing but also provide the convenience and reduce the energy consumption as well. In this paper, we designed and implemented the start stop system algorithm for the aftermarket smart key system which uses the OBD-II interface. The implemented start stop system is capable of controlling two independent systems, both an eco-friendly start stop system and a convenient smart key system, on a single ECU. Furthermore, the implemented start sop system standardizes the interface with the vehicles to reduce the time required for installing the start stop system to the various vehicles, and satisfies every standard response time limit for the vehicle status request signals.

The Design and Implementation of Start Stop System with Multi-Protocol in Automotive Smart Key System

The researches on the start stop system, which stops the engine on idle, have been briskly carried out around the automobile makers before the appearance of the alternative energy along with the growing needs for the low energy consumption technology and the strengthening vehicle environmental regulations. In addition, the automobile makers are trying to make the start stop system general and encourage purchasing by combining the system to the popular smart key system to not only provide the convenience but reduce the energy consumption as well. In this paper, we designed and implemented the start stop system with multi-protocol that is capable of providing both an eco-friendly start stop system and a convenient smart key system on a single electronic control unit. For performance evaluation, we gathered the necessary data with a software tool for monitoring the vehicle’s network, installed the proposed system on a real vehicle, measured the calculated worst case response time of the multi-protocol on the idle state control module, and compared the results with the benchmark data from the society of automotive engineers. The results show that the proposed system satisfies every time restriction that is related with the proposed system.

The Design and Implementation of Improved Anti-Collision Algorithm for Vehicle User Authentication System

Dazzling development of the automotive industry as a new system for the driver’s convenience and security are being applied to the vehicle. In vehicle access and start-up that occurs most frequently before and after the operation of the vehicle, continually raised the needs of the customers for inconvenience related to user authentication as to compensate for the user’s convenience and improve the security of the vehicle, the smart-key system for the vehicle have emerged, Because many of the FOB key, anti-collision algorithm for a seamless multi-access is applied to the smart-key system. In this paper, we have designed and implemented improved anti-collision algorithm that dramatically reduces the communication response time required in the user authentication process immediately after by dynamically changing the order in which the request of the user ID as the user ID on immediately before in the smart key system for vehicles that use many of the FOB key. In order to evaluate the performance of the system the improved anti-collision algorithm is applied, we show the behavior of the algorithm implemented in the state actually mounted on the vehicle and verify that communication response time required for many of the FOB key was reduced by about 33 % compared to existing algorithms.

Multi-Port Register File Design and Implementation for the SIMD Programmable Shader

Characteristically, 3D graphic algorithms have to perform complex calculations on massive amount of stream data. The vertex and pixel shaders have enabled efficient execution of graphic algorithms by hardware, and these graphic processors may seem to have achieved the aim of “hardwarization of software shaders.” However, the hardware shaders have hitherto been evolving within the limits of Z-buffer based algorithms. We predict that the ultimate model for future graphic processors will be an algorithm-independent integrated shader which combines the functions of both vertex and pixel shaders. We design the register file model that supports 3-dimensional computer graphic on the programmable unified shader processor. We have verified the accurate calculated value using FPGA Virtex-4(xcvlx200) made by Xilinx for operating binary files made by the implementation progress based on synthesis results.