Abstract
HEV have regeneration capability, and can recover the energy on downward slope which stored on rising slope the as potential energy. This time we study the function of root guidance with energy saving for HEV, and have developed the expression of fuel consumption which include regeneration capability. To verify the effective of root guidance with energy saving for HEV, we set up the root which has altitude difference and ran the root measuring actual fuel consumption. Then we confirmed the effectiveness of root guidance for HEV
