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This study investigated the mechanism by which a flat ride is perceived as low-frequency motion during highway driving. Vehicle motion was measured using a GPS receiver and an inertial navigation system. The driver’s head motion relative to the vehicle was measured with a motion capture system consisting of cameras attached to the vehicle. The results of an analysis showed that a flat ride could be quantified based on the amount of absolute head motion. Laboratory tests were also conducted to investigate the effects of motion in the visual field on the perception of ride comfort, and the results showed that perceptions of even the same motion varied depending on the visual conditions, such as the location of the hood, and such differences in motion perception affected the evaluation of a flat ride.

This paper describes the HMI, navigation and telematics systems developed specifically for the Nissan LEAF electric vehicle to dispel drivers' anxieties about operating an EV. Drivers of EVs will need to understand various new kinds of information about the vehicle's operational status that differ from conventional gasoline-engine vehicles. Additionally, owing to the current driving range of EVs and limited availability of charging stations, drivers will want to know acccurate the remaining driving range, amount of power and the latest information about charging station locations. It will also be important to ensure that people unfamiliar with EVs will be able to operate them easily as rental cars or in car-sharing systems without experiencing any inconvenience.

This paper describes the display information, navigation and telematics systems developed specifically for The newly developed Electric Vehicle to dispel drivers' anxieties about operating an Electric Vehicle. Drivers of Electric Vehicles will need to understand various new kinds of information about the vehicle's operational status that differ from conventional gasoline-engine vehicles. Additionally, owing to the current driving range of Electric Vehicles and limited availability of charging stations, drivers will want to know acccurate the remaining driving range, amount of power and the latest information about charging station locations. It will also be important to ensure that people unfamiliar with Electric Vehicles will be able to operate them easily as rental cars or in car-sharing systems without experiencing any inconvenience.