2MASSEL T, DING E L, ARNDT M. Identification and road gradient and vehicle pitch angle [ C ]//Proceed- ings of the 2004 IEEE International Conference on Con- trol Applications. Taipei : [ s. n. ] ,2004 : 1284 - 1289.
3MASSEL T, DING E L, ARNDT M. Investigation of dif- ferent techniques for determining the road uphill gradi- ent and pitch angle of vehicles [ C ]//Proceedings of the 2004 American Control Conference. Boston : [s. n. ] ,2004:2763 - 2768.
