Safety placement of the car pedal by measurement of the human legs joint angle and action time

In this study, we pay attention to braking action in the emergency case and measure the driver's action characteristics in various conditions of pedal placement. Experimental results suggested that 1) in back condition Movement time and Moving time get shorter and the maximum displacement to peak value of the joint angle decreases, 2) in front condition Releasing time get shorter and the maximum displacement to peak value of the joint angle increases. Based on experimental results, we recommend that the most suitable horizontal placement of brake pedal may set between 50 mm and 100 mm to accelerator pedal. In addition, the depth placement of brake pedal may set between 0 mm and 100 mm to accelerator pedal.