The objective of this paper is to present the evolution and the state-of-the-art in the area of legged locomotion systems. In a first phase different possibilities for implementing mobile robots are discussed, namely the case of artificial legged locomotion systems, while emphasizing their advantages and limitations. In a second phase a historical overview of the evolution of these systems is presented, bearing in mind several particular cases often considered as milestones of technological and scientific progress. After this historical timeline, some of the present-day systems are examined and their performance is analyzed. In a third phase the major areas of research and development that are presently being followed in the construction of legged robots are pointed out. Finally, some still unsolved problems that remain defying robotics research, are also addressed.
Ahmadi, M. and Buehler, M., 2006, “Controlled passive dynamic running experiments with ARL Monopod II,” IEEE Transactions on Robotics22(5), 974—986.
2.
Allen, T.J., Quinn, R.D., Bachmann, R.J., and Ritzmann, R.E., 2003, “Abstracted biological principles applied with reduced actuation improve mobility of legged vehicles,” in Proceedings of the 2003 IEEE/RSJ International Conference on Intelligent Robots and Systems, Las Vegas, NV, October 27—31, pp. 1370— 1375.
3.
Ambroggi, F. De, Fortuna, L., and Muscato, G., 1997, “PLIF: Piezo Light Intelligent Flea new micro-robots controlled by self-learning techniques,” in Proceedings of the 1997 IEEE International Conference on Robotics and Automation , Albuquerque, NM, April 20—25, pp. 1767—1772.
4.
Anon, 1967, Logistical Vehicle Off-Road Mobility. Project TCCO62-5, US Army Transportation Combat Developments Agency, Fort Eustis, Va.
5.
Ayers, J. and Witting, J., 2007, “Biomimetic approaches to the control of underwater walking machines,” Philosophical Transactions of the Royal Society, Series A 365(1850), 273—295.
6.
Ayers, J., Witting, J., Wilbur, C., Zavracky, P., McGruer, N., and Massa, D., 2000, “Biomimetic robots for shallow water mine countermeasures ,” in Proceedings of the 4th International Conference on Technology and the Mine Problem, Naval Postgraduate School, Monterey, CA, pp. 1—16.
7.
Bares, J.E. and Wettergreen, D.S. , 1999, “DANTE II: technical description, results, and lessons learned,” The International Journal of Robotics Research18(7), 621—649.
8.
Bares, J., Hebert, M., Kanade, T., Krotkov, E., Mitchell, T., Simmons, R., and Whittaker, W., 1989, “Ambler: An autonomous rover for planetary exploration ,” IEEE Computer22(6), 18—26.
9.
Bekker, M.G., 1960, Off-The-Road Locomotion, University of Michigan Press, Ann Arbor, MI.
10.
Bekker, M.G., 1969, Introduction to Terrain Vehicle Systems, University of Michigan Press, Ann Arbor, MI.
11.
Berns, K., Grimminger, F., Hochholdinger, U., Kerscher, T. and Albiez, J., 2003, “Design and control of a leg for the running machine PANTER,” in Proceedings of the ICAR 2003 — 11th International Conference on Advanced Robotics, Coimbra , Portugal, June 30—July 3, pp. 1737—1742.
12.
Binnard, M.B., 1995, Design of a Small Pneumatic Walking Robot. MSc thesis , Massachusetts Institute of Technology— Department of Mechanical Engineering, Cambridge, MA.
13.
Birch, M.C., Quinn, R.D., Hahm, G., Phillips, S.M., Drennan, B., Fife, A., Verma, H., and Beer, R.D., 2000, “Design of a cricket microrobot,” in Proceedings of the 2000 IEEE International Conference on Robotics and Automation, San Francisco, CA, USA, April 24—28, pp. 1109—1114.
14.
Bonvilain, A. and Chaillet, N., 2003, “Microfabricated thermally actuated microrobot ,” in Proceedings of the 2003 IEEE International Conference on Robotics and Automation, Taipei, Taiwan, September 14—19, pp. 2960— 2965.
15.
Buehler, M., Battaglia, R., Cocosco, A., Hawker, G., Sarkis, J., and Yamazaki, K., 1998, “SCOUT: A simple quadruped that walks, climbs and runs,” in Proceedings of the 1998 IEEE International Conference on Robotics and Automation, Leuven , Belgium, May 16—20, pp. 1707—1712.
16.
Buehler, M., Cocosco, A., Yamazaki, K., and Battaglia, R., 1999, “Stable open loop walking in quadruped robots with stick legs,” in Proceedings of the 1999 IEEE International Conference on Robotics and Automation, Detroit, MI, May 10—15, pp. 2348—2353.
17.
Buehler, M., Koditschek, D.E., and Saranli, U., 2002, “Single actuator per leg robotic hexapod ,” Patent Number 6,481,513.
18.
Caldwell, D.G. and Warren, H.A., 2001, “Is there a future for climbing and walking robotic systems in military operations?” in Proceedings CLAWAR'2001 — 4th International Conference on Climbing and Walking Robots , Karlsruhe, Germany, September 24—26, pp. 969—977.
19.
Campbell, D. and Buehler, M., 2003, “Stair descent in the simple hexapod `RHex ',” in Proceedings of the 2003 IEEE International Conference on Robotics and Automation, Taipei, Taiwan, September 14—19, pp. 1380— 1385.
20.
Cham, J.G., Bailey, S.A., Clark, J.E., Full, R.J., and Cutkosky, M.R., 2002, “Fast and robust: Hexapedal robots via shape deposition manufacturing,” International Journal of Robotics Research21(10—11), 869—882.
21.
Colbrunn, R.W., 2000, Design and Control of a Robotic Leg with Braided Pneumatic Actuators, MSc thesis, Case Western Reserve University —Department of Mechanical and Aerospace Engineering .
22.
Cox, W., 1970, “Big Muskie,” News in Engineering, Ohio State University, pp. 25—27.
23.
Cruse, H., Dean, J., Müller, U., and Schmitz, J., 1991, “The stick insect as a walking robot,” in Proceedings of ICAR'91 — Fifth International Conference on Advanced Robotics, Pisa, Italy, June 20—22, pp. 936—940.
24.
Daltorio, K.A., Gorb, S., Peressadko, A., Horchler, A.D., Ritzmann, R.E., and Quinn R.D., 2005, “A robot that climbs walls using micro-structured polymer feet,” in Proceedings CLAWAR'2005 — 8th International Conference on Climbing and Walking Robots, London, UK, September 13—15, pp. 131—138.
25.
Davis, S., Tresadern, P., Canderle, J., Tsagarakis, N.G., Dodd, P., and Caldwell, D.G., 2003, “The biomimetic design of `soft' mechatronic systems ,” in Proceedings of the ICAR 2003 — 11th International Conference on Advanced Robotics, Coimbra , Portugal, June 30—July 3, pp. 720—725.
26.
DeBolt, C., O'Donnell, C., Freed, C., and Nguyen, T., 1997, “The BUGS `Basic UXO Gathering system' Project for UXO Clearance & Mine Coutermeasures,” in Proceedings of the 1997 IEEE International Conference on Robotics and Automation , Albuquerque, NM, April 20—25, pp. 329—334.
27.
Ðorđević,G.S., Rašić,M., andShadmehr,R., 2004,“Locomotionvelocityparametersofbiologicallyinspired hexapodrobot,” in Proceedings of IAS-8: the 8th Conference on Intelligent Autonomous Systems, Amsterdam , The Netherlands, March 10—13, pp. 11—18.
28.
Elkmann, N., Felsch, T., Sack, M., Saenz, J., and Hortig, J., 2002, “Innovative service robot systems for facade cleaning of difficult-to-access areas,” in Proceedings of the 2002 IEEE/RSJ International Conference on Intelligent Robots and Systems , Lausanne, Switzerland, September 30—October 4, pp. 756—762.
29.
Endo, G. and Hirose, S., 2000, “Study on Roller-Walker (multi-mode steering control and self-contained locomotion),” in Proceedings of the 2000 IEEE International Conference on Robotics and Automation , San Francisco, CA, USA, April 24—28, pp. 2808—2814.
30.
Espenschied, K.S., Quinn, R.D., Chiel, H.J., and Beer, R.D., 1996, `Biologically-based distributed control and local reflexes improve rough terrain locomotion in a hexapod robot,` Robotics and AutonomousSystems18(1—2), 59—64.
31.
Fiorini, P., 2000, “Ground mobility systems for planetary exploration ,” in Proceedings of the 2000 IEEE International Conference on Robotics and Automation, San Francisco, CA , USA, April 24—28, pp. 908—913.
32.
Flannigan, W.C., Nelson, G.M., and Quinn, R.D., 1998, “Locomotion controller for a crab-like robot ,” in Proceedings of the 1998 IEEE International Conference on Robotics and Automation, Leuven, Belgium, May 16—20, pp. 152—156.
33.
Frank, A.A., 1968, Automatic Control Systems for Legged Locomotion . USCEE Report No. 273, University of Southern California , Los Angeles, CA.
34.
Fujita, M., 2000, “Digital creatures for future entertainment robotics ,” in Proceedings of the 2000 IEEE International Conference on Robotics and Automation, San Francisco, CA , USA, April 24—28, pp. 801—806.
35.
Fujita, M. and Kitano, H., 1998, “Development of an autonomous quadruped robot for robot entertainment,” Autonomous Robots5(1), 7—18.
36.
Fujita, M., Kuroki, Y., Ishida, T., and Doi, T.T., 2003, “Autonomous behavior control architecture of entertainment humanoid robot SDR-4X,” in Proceedings of the 2003 IEEE/RSJ International Conference on Intelligent Robots and Systems , Las Vegas, NV, October 27—31, pp. 960—967.
37.
Fujiwara, K., Kanehiro, F., Kajita, S., Yokoi, K., Saito, H., Harada, K., Kaneko, K., and Hirukawa, H., 2003, “The first human-size humanoid that can fall over safely and stan-up again,” in Proceedings of the 2003 IEEE/RSJ International Conference on Intelligent Robots and Systems , Las Vegas, NV, October 27—31, pp. 1920— 1926.
38.
Garcia, E., Estremera, J., and Gonzales de Santos, P., 2003, “A control architecture for humanitarian-demining legged robots,” in Proceedings CLAWAR'2003 — 6th International Conference on Climbing and Walking Robots, Catania, Italy, September 17—19, pp. 383—390.
39.
Hasunuma, H., Nakashima, K., Kobayashi, M., Mifune, F., Yanagihara, Y., Ueno, T., Ohya, K., and Yokoi, K., 2003, “A tele-operated humanoid robot drives a backhoe ,” in Proceedings of the 2003 IEEE International Conference on Robotics and Automation, Taipei , Taiwan, September 14—19, pp. 2998—3004.
40.
Hawker, G. and Buehler, M., 2000, “Quadruped trotting with passive knees—design, control, and experiments,” in Proceedings of the 2000 IEEE International Conference on Robotics and Automation, San Francisco, CA, April 24—28, pp. 3046—3051.
41.
Hennion, B., Pill, J. and Guinot, J.-C., 2005, “A biologically inspired model for quadruped locomotion ,” in Proceedings CLAWAR'2005 — 8th International Conference on Climbing and Walking Robots, London, UK, September 13—15, pp. 49—56.
42.
Hertzberg, J., Christaller, T., Kirchner, F., Licht, U. and Rome, E., 1998, “Sewer robotics,” in Proceedings of the 5th International Conference on Simulation of Adaptive Behavior, Zurich, Switzerland, August 17—21, pp. 427—436.
43.
Hirai, K., Hirose, M., Haikawa, Y. and Takenaka, T., 1998, “The development of Honda humanoid robot ,” in Proceedings of the 1998 IEEE International Conference on Robotics and Automation, Leuven, Belgium, May 16—20, pp. 1321—1326.
44.
Hirose, S., 1991, “Three basic types of locomotion in mobile robotics ,” in Proceedings of ICAR'91 — Fifth International Conference on Advanced RoboticsPisa , Italy, June 20—22, pp. 12—17.
45.
Hirose, S., 1993, Biologically Inspired Robots — Snake-Like Locomotors and Manipulators, Oxford University Press, New York.
46.
Hirose, S. and Kato, K., 1998, “Development of quadruped walking robot with the mission of mine detection and removal — proposal of shape-feedback master-slave arm,” in Proceedings of the 1998 IEEE International Conference on Robotics and Automation, Leuven, Belgium, May 16—20, pp. 1713—1718.
47.
Hirose, S. and Takeuchi, H., 1996, “Study on Roller-Walker (basic characteristics and its control),” in Proceedings of the 1996 IEEE International Conference on Robotics and Automation, Minneapolis, MN, April 22—28, pp. 3265—3270.
48.
http#1. “The Walking Machine Catalogue”. http://www.walking-machines.org/
http#3. “Q3 FY2005 Sony Group Earnings Announcement”. http://www.sony.net/SonyInfo/IR/financial/fr/05q3_ sonypre.pdf.
51.
Hyon, S.H. and Mita, T., 2002, “Development of a biologically inspired hopping robot—“Kenken”,” in Proceedings of the 2002 IEEE International Conference on Robotics and Automation, Washington, DC, May 11—15, pp. 3984—3991.
52.
Ihme, T., 2003, “Posture control and distributed force sensing for technical applications of walking robots,” in Proceedings of the ICAR 2003 — 11th International Conference on Advanced Robotics, Coimbra, Portugal, June 30—July 3, pp. 1032—1037.
53.
Iida, F., Dravid, R., and Paul, C., 2002, “Design and control of a pendulum driven hopping robot,” in Proceedings of the 2002 IEEE/RSJ International Conference on Intelligent Robots and Systems, Lausanne, Switzerland, September 30—October 4, pp. 2141—2146.
54.
Iida, F. and Pfeifer, R., 2004, “`Cheap' rapid locomotion of a quadruped robot: self-stabilization of bounding gait,” in Proceedings of IAS-8: the 8th Conference on Intelligent Autonomous Systems , Amsterdam, The Netherlands, March 10—13, pp. 642—649.
55.
Kajima, H., Doi, M., Hasegawa, Y. and Fukuda, T., 2003, “Study on Brachiation controller for the multi-locomotion robot—redesigning behavior controllers,” in Proceedings of the 2003 IEEE/RSJ International Conference on Intelligent Robots and Systems, Las Vegas, NV, October 27—31, pp. 1388—1393.
56.
Kanehiro, F., Hirukawa, H., Kaneko, K., Kajita, S., Fujiwara, K., Harada, K. and Yokoi, K., 2004, “Locomotion planning of humanoid robots to pass through narrow spaces,” in Proceedings of the 2004 IEEE International Conference on Robotics and Automation, New Orleans, LA, April 26—May 1, pp. 604—609.
57.
Kaneko, K., Kanehiro, F., Kajita, S., Hirukawa, H., Kawasaki, T., Hirata, M., Akachi, K. and Isozumi, T., 2004, “Humanoid robot HRP-2,” in Proceedings of the 2004 IEEE International Conference on Robotics and Automation, New Orleans, LA, April 26—May 1, pp. 1083—1090.
58.
Kaneko, M., Mizuno, A. and Harada, K., 2002, “Torque distribution for achieving a hugging walk ,” in Proceedings of the 2002 IEEE/RSJ International Conference on Intelligent Robots and Systems, Lausanne , Switzerland, September 30—October 4, pp. 2613—2618.
59.
Kang, T., Kim, H., Son, T. and Choi, H., 2003, “Design of quadruped walking and climbing robot ,” in Proceedings of the 2003 IEEE/RSJ International Conference on Intelligent Robots and Systems, Las Vegas, NV, October 27—31, pp. 619—624.
60.
Katić, D. and Vukobratović, M., 2002, “Intelligent soft-computing paradigms for humanoid robots,” in Proceedings of the 2002 IEEE/RSJ International Conference on Intelligent Robots and Systems , Lausanne, Switzerland, September 30—October 4, pp. 2533—2538.
61.
Kato, T., Takanishi, A., Jishikawa, H., and Kato, I., 1983, “The realisation of the quasi-dynamic walking by the biped walking machine,” in Proceedings of the Fourth Symposium on Theory and Practice of Robots and Manipulators , Morecki, A., Bianchi, G. and Kedzior, K., eds., Polish Scientic Publishers, Warsaw , Poland, pp. 341—351.
62.
Kemurdjian, A.L., Potiemkin, E.K., and Mishkiniuk, V.K. , 1995, “Planet rovers today ,” in Proceedings of ICAR'95 — Seventh International Conference on Advanced Robotics, Sant Feliu de Guixols, Catalonia, Spain, September 20—22, pp. 293—299.
63.
Kennedy, B., Okon, A., Aghazarian, H., Badescu, M., Bao, X., Bar-Cohen, Y., Chang, Z., Dabiri, B.E., Garrett, M., Magnone, L., and Sherrit, S., 2005a, “Lemur IIb: A robotic system for steep terrain access,” in Proceedings CLAWAR'2005 — 8th International Conference on Climbing and Walking Robots, London, UK, September 13—15, pp. 1077—1084.
64.
Kennedy, B., Okon, A., Aghazarian, H., Garrett, M., Huntsberger, T., Magnone, L., Robinson, M., and Townsend, J., 2005b, “The Lemur II-Class robots for inspection and maintenance of orbital structures: a system description,” in Proceedings CLAWAR'2005 — 8th International Conference on Climbing and Walking Robots, London, UK, September 13—15, pp. 1069—1076.
65.
Kerscher, T., Albiez, J., Zoellner, J.M., and Dillmann, R., 2004, “AirInsect—a new innovative biological inspired six-legged walking machine driven by fluidic muscles,” in Proceedings of IAS-8: the 8th Conference on Intelligent Autonomous Systems, Amsterdam, The Netherlands, March 10—13, pp. 3—10.
66.
Kikuchi, F., Ota, Y., and Hirose, S., 2003, “Basic performance experiments for jumping quadruped ,” in Proceedings of the 2003 IEEE/RSJ International Conference on Intelligent Robots and Systems, Las Vegas, NV, October 27—31, pp. 3378—3383.
67.
Kim, B., Lim, H.-Y., Kim, K.-D., Jeong, Y., and Park, J.-O., 2002, “A locomotive mechanism for a robotic colonoscope ,” in Proceedings of the 2002 IEEE/RSJ International Conference on Intelligent Robots and Systems, Lausanne , Switzerland, September 30—October 4, pp. 1373—1378.
68.
Kim, B., Ryu, J., Jeong, Y., Tak, Y., Kim, B., and Park, J.-O., 2003, “A ciliary based 8-legged walking micro robot using cast IPCM actuators,” in Proceedings of the 2003 IEEE International Conference on Robotics and Automation, Taipei, Taiwan, September 14—19, pp. 2940—2945.
69.
Kingsley, D.A., Quinn, R.D., and Ritzmann, R.E., 2003, “A cockroach inspired robot with artificial muscles ,” in Proceedings of the 2003 International Symposium on Adaptive Motion of Animals and Machines, Kyoto, Japan, March 4—8.
70.
Kitano, H., Suzuki, S., and Akita, J., 2000, “RoboCup Jr.: RoboCup for edutainment,” in Proceedings of the 2000 IEEE International Conference on Robotics and Automation, San Francisco, CA, April 24—28, pp. 807— 812.
71.
Klaassen, B., Linnemann, R., Spenneberg, D., and Kirchner, F., 2003, “Biologically Inspired Robot Design and Modelling ,” in Proceedings of the ICAR 2003 — 11th International Conference on Advanced Robotics, Coimbra , Portugal, June 30—July 3, pp. 576—581.
72.
Klaassen, B. and Paap, K.L., 1999, “GMD-SNAKE2: A snake-like robot driven by wheels and a method for motion control,” in Proceedings of the 1999 IEEE International Conference on Robotics and Automation , Detroit, MI, May 10—15, pp. 3014—3019.
73.
Komsuoğlu,H., McMordie,D., Saranli,U., Moore,N., Buehler,M., andKoditschek,D.E., 2001,“Proprioception basedbehavioraladvancesinahexapodrobot ,”in Proceedings of the 2001 IEEE InternationalConference on Robotics and Automation, Seoul, Korea, May 21—26, pp. 3650—3655.
74.
Konaka, M., 1991, “National project on advanced robot technology in Japan,” in Proceedings of ICAR'91 — Fifth International Conference on Advanced Robotics, Pisa , Italy, June 20—22, pp. 24—30.
75.
Koyachi, N., Adachi, H., Senjo, N., Murata, R., Izumi, M., Hirose, T., and Arai, T., 2002, “Control of walk and manipulation by a hexapod with integrated limb mechanism: MELMANTIS-1,” in Proceedings of the 2002 IEEE International Conference on Robotics and Automation , Washington, DC, May 11—15, pp. 3553—3558.
76.
Kubota, T. and Takahashi, H., 2003, “Micro walking robot design for planetary exploration ,” in Proceedings CLAWAR'2003 — 6th International Conference on Climbing and Walking Robots, Catania, Italy, September 17—19, pp. 357—364.
77.
Kurokawa, H., Kamimura, A., Yoshida, E., Tomita, K., Kokaji, S., and Murata, S., 2003, “M-TRAN II: Metamorphosis from a four-legged walker to a caterpillar,” in Proceedings of the 2003 IEEE/RSJ International Conference on Intelligent Robots and Systems , Las Vegas, NV, October 27—31, pp. 2454—2459.
78.
Kuroki, Y., Fujita, M., Ishida, T., Nagasaka, K., and Yamaguchi, J., 2003, “A small biped entertainment robot exploring attractive applications,” in Proceedings of the 2003 IEEE International Conference on Robotics and Automation, Taipei, Taiwan, September 14—19, pp. 471—476.
79.
Kyriakopoulos, K.J., Migadis, G., and Sarrigeorgidis, K., 1999, “The NTUA Snake: design, planar kinematics and motion planning,” Journal of Robotic Systems16(1), 37—72.
80.
Laney, D. and Hong, D., 2005, “Kinematic analysis of a novel rimless wheel with independently actuated spokes,” in Proceedings of IDECT/CIE 2005 ASME 2005 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference, Long Beach, CA, September 24—28, DECT2005-84596.
81.
Lee, Y.-J. and Hirose, S., 2000, “Three-legged walking for fault tolerant locomotion of a quadruped robot with demining mission,” in Proceedings of the 2000 IEEE/RSJ International Conference on Intelligent Robots and Systems, Takamatsu, Japan, October 30—November 5, pp. 973—978.
82.
Lewinger, W.A., Branicky, M.S., and Quinn, R.D., 2005, “Insect-inspired, actively compliant hexapod capable of object manipulation,” in Proceedings CLAWAR'2005 — 8th International Conference on Climbing and Walking Robots , London, UK, September 13—15, pp. 65—72.
83.
Liston, R.A. and Mosher, R.S., 1968, “A Versatile Walking Truck,” in Proceedings of the Transportation Engineering Conference , Institute of Civil Engineers, London.
84.
Lohmeier, S., Löffler, K., Gienger, M., Ulbrich, H., and Pfeiffer, F., 2004, “Computer system and control of biped “Johnnie ”,” in Proceedings of the 2004 IEEE International Conference on Robotics and Automation, New Orleans, LA, USA, April 26—May 1, pp. 4222—4227.
85.
Long, G., Anderson, J., and Borenstein, J., 2002, “The kinematic design of the omnipede: a new approach to obstacle traversion,” in Proceedings of the 2002 IEEE International Conference on Robotics and Automation , Washington, DC, May 11—15, pp. 714—719.
86.
Mae, Y., Yoshida, A., Arai, T., Inoue, K., Miyawaki, K., and Adachi, H., 2000, “Application of locomotive robot to rescue tasks ,” in Proceedings of the 2000 IEEE/RSJ International Conference on Intelligent Robots and Systems, Takamatsu , Japan, October 30—November 5, pp. 2083—2088.
87.
Marques, L., Rachkov, M., and Almeida, A.T.de, 2002, “Mobile pneumatic robot for demining ,” in Proceedings of the 2002 IEEE International Conference on Robotics and Automation, Washington, DC, May 11—15, pp. 3508—3513.
88.
Martel, S., Sherwood, M., Helm, C., Quevedo, W. G. de, Fofonoff, T., Dyer, R., Bevilacqua, J., Kaufman, J., Roushdy, O., and Hunter, I., 2001, “Three-legged wireless miniature robots for mass-scale operations at the sub-atomic scale,” in Proceedings of the 2001 IEEE International Conference on Robotics and Automation , Seoul, Korea, May 21—26, pp. 3423—3428.
89.
Matsumoto, O., Kajita, S., and Komoriya, K., 2002, “Flexible locomotion control of a self-contained biped leg-wheeled system,” in Proceedings of the 2002 IEEE/RSJ International Conference on Intelligent Robots and Systems , Lausanne, Switzerland, September 30—October 4, pp. 2599—2604.
90.
Matsumoto, O., Kajita, S., Saigo, M., and Tani, K., 1999, “Biped-type leg-wheeled robot,” Advanced Robotics13(3), 235—241.
91.
Matsuoka, K., 1979, “A model of repetitive hopping movements in man ,” in Fifth World Congress on Theory of Machines and Mechanisms, International Federation for Information Processing .
92.
McGhee, R.B., 1966, “Finite state control of quadruped locomotion ,” in Second International Symposium on External Control of Extremities.
93.
Mederreg, L., Hugel, V., Bonnin, P., Blazevic, P., Abourachid, A., and Stasse, O., 2003, “The RoboCoq project— modeling and design of bird-like robot equipped with stabilized vision,” in Proceedings CLAWAR'2003 — 6th International Conference on Climbing and Walking Robots, Catania, Italy, September 17—19, pp. 761—768.
94.
Michaud, F., Létourneau, D., Arsenault, M., Bergeron, Y., Cadrin, R., Gagnon, F., Legault, M.-A., Millette, M., Paré, J.-F., Tremblay, M.-C., Lepage, P., Morin, Y., Bisson, J., and Caron, S., 2005, “Multi-modal locomotion robotic platform using leg-track-wheel articulations,” Autonomous Robots, Special Issue on Unconventional Robotic Mobility18(2), 137—156.
95.
Minor, M., Dulimarta, H., Danghi, G., Mukherjee, R., Tummala, R.L., and Aslam, D., 2000, “Design, implementation, and evaluation of an under-actuated miniature biped climbing robot,” in Proceedings of the 2000 IEEE/RSJ International Conference on Intelligent Robots and Systems , Takamatsu, Japan, October 30— November 5, pp. 1999—2005.
96.
Mizuuchi, I., Tajima, R., Yoshikai, T., Sato, D., Nagashima, K., Inaba, M., Kuniyoshi, Y., and Inoue, H., 2002, “The design and control of the flexible spine of a fully tendon-driven humanoid “Kenta”,” in Proceedings of the 2002 IEEE/RSJ International Conference on Intelligent Robots and Systems, Lausanne, Switzerland, September 30—October 4, pp. 2527—2532.
97.
Moore, E.Z., Campbell, D., Grimminger, F., and Buehler, M., 2002, “Reliable stair climbing in the simple hexapod `RHex ',” in Proceedings of the 2002 IEEE International Conference on Robotics and Automation, Washington, DC, May 11—15, pp. 2222—2227.
98.
Morrey, J.M., Lambrecht, B., Horchler, A.D., Ritzmann, R.E., and Quinn, R.D., 2003, “Highly mobile and robust small quadruped robots ,” in Proceedings of the 2003 IEEE/RSJ International Conference on Intelligent Robots and Systems, Las Vegas, NV, October 27—31, pp. 82—87.
99.
Mosher, R.S., 1968, “Test and evaluation of a versatile walking truck ,” in Proceedings of the Off-Road Mobility Research Symposium, International Society for Terrain Vehicle Systems, Washington, DC, May, pp. 359— 379.
100.
Nagasaki, T., Kajita, S., Yokoi, K., Kaneko, K. and Tanie, K., 2003, “Running Pattern Generation and Its Evaluation Using a Realistic Humanoid Model,” in Proceedings of the 2003 IEEE International Conference on Robotics and Automation, Taipei, Taiwan, September 14—19, pp. 1336—1342.
101.
Nakai, H., Kuniyoshi, Y., Inaba, M., and Inoue, H., 2002, “Metamorphic robot made of low melting point alloy ,” in Proceedings of the 2002 IEEE/RSJ International Conference on Intelligent Robots and Systems, Lausanne , Switzerland, September 30—October 4, pp. 2025—2030.
102.
Nelson, G.M. and Quinn, R.D., 1998, “Posture control of a cockroach-like robot ,” in Proceedings of the 1998 IEEE International Conference on Robotics and Automation, Leuven, Belgium, May 16—20, pp. 157—162.
103.
Nelson, G.M., Quinn, R.D., Bachmann, R.J., Flannigan, W.C., Ritzmann, R.E., and Watson, J.T., 1997, “Design and simulation of a cockroach-like hexapod robot,” in Proceedings of the 1997 IEEE International Conference on Robotics and Automation, Albuquerque, NM , April 20—25, pp. 1106—1111.
104.
Neuhaus, P. and Kazerooni, H., 2000, “Design and control of human assisted walking robot ,” in Proceedings of the 2000 IEEE International Conference on Robotics and Automation, San Francisco, CA , USA, April 24—28, pp. 563—569.
105.
Nilsson, M., 1998, “Snake robot free climbing,” IEEE Control Systems18(1), 21—26.
106.
Nishiyama, T., Hoshino, H., Sawada, K., Tokunaga, Y., Shinomiya, H., Yoneda, M., Takeuchi, I., Ichige, Y., Hattori, S., and Takanishi, A., 2003, “Development of user interface for humanoid service robot system,” in Proceedings of the 2003 IEEE International Conference on Robotics and Automation, Taipei, Taiwan, September 14—19, pp. 2979—2984.
107.
Nonami, K. and Huang, Q.-J., 2001, “Humanitarian mine detection six-legged walking robot COMET-II with two manipulators,” in Proceedings CLAWAR'2001 — 4th International Conference on Climbing and Walking Robots, Karlsruhe, Germany, September 24—26, pp. 989—996.
108.
Ogo, K., Ganse, A., and Kato, I., 1980, “Dynamic walking of a biped walking machine aiming at completion of steady walking,” in Third Symposium on Theory and Practise of Robots and Manipulators.
109.
Omata, T., Tsukagoshi, K., and Mori, O., 2002, “Whole quadruped manipulation,” in Proceedings of the 2002 IEEE International Conference on Robotics and Automation, Washington, DC, May 11—15, pp. 2028—2033.
110.
Ota, Y., Yoneda, K., Tamaki, T., and Hirose, S., 2002, “A walking and wheeled hybrid locomotion with twin-frame structure robot,” in Proceedings of the 2002 IEEE/RSJ International Conference on Intelligent Robots and Systems , Lausanne, Switzerland, September 30—October 4, pp. 2645—2651.
111.
Paap, K.L., Christaller, T., and Kirchner, F., 2000, “A robot snake to inspect broken buildings ,” in Proceedings of the 2000 IEEE/RSJ International Conference on Intelligent Robots and Systems, Takamatsu , Japan, October 30—November 5, pp. 2079—2082.
112.
Papadopoulos, D. and Buehler, M., 2000, “Stable running in a quadruped robot with compliant legs,” in Proceedings of the 2000 IEEE International Conference on Robotics and Automation, San Francisco, CA , April 24—28, pp. 444—449.
113.
Peng, S., Lam, C.P., and Cole, G.R., 2003, “A biologically inspired four legged walking robot ,” in Proceedings of the 2003 IEEE International Conference on Robotics and Automation, Taipei , Taiwan, September 14—19, pp. 2024—2030.
114.
Pfeiffer, F., Eltze, J., and Weidemann, H.-J. , 1995, “The TUM-walking machine ,” Intelligent Automation and Soft Computing1(3), 307—323.
115.
Pfeiffer, F., Löffler, K., and Gienger, M., 2003, “Humanoid robots,” in Proceedings CLAWAR'2003 — 6th International Conference on Climbing and Walking Robots, Catania, Italy, September 17—19, pp. 505—516.
116.
Poulakakis, I., Smith, J.A., and Buehler, M., 2005, “Modeling and experiments of untethered quadrupedal running with a bounding gait: The Scout II robot,” International Journal of Robotics Research24(4), 239—256.
117.
Pratt, J., Chew, C.-M., Torres, A., Dilworth, P., and Pratt, G., 2001, “An intuitive approach for bipedal locomotion ,” International Journal of Robotics Research20(2), 129—143.
118.
Preumont, A., Alexandre, P., Doroftei, I., and Goffin, F., 1997, “A conceptual walking vehicle for planetary exploration ,” Mechatronics7(3), 287—296.
119.
Quinn, R.D., Offi, J.T., Kingsley, D.A., and Ritzmann, R.E., 2002, “Improved mobility through abstracted biological principles,” in Proceedings of the 2002 IEEE/RSJ International Conference on Intelligent Robots and Systems, Lausanne, Switzerland, September 30—October 4, pp. 2652—2657.
120.
Raibert, M.H., 1986, Legged Robots that Balance, The MIT Press, Cambridge, MA.
121.
Roberts, J.M., Corke, P.I., and Winstanley, G.J. , 1999, “Development of a 3500-tonne field robot,” The International Journal of Robotics Research18(7), 739—752.
122.
Rosheim M.E., 1994, Robot Evolution: The Development of Anthrobotics , 1st edition, Wiley, New York.
123.
Rosheim, M.E., 1997, “In the footsteps of Leonardo,” IEEE Robotics & Automation Magazine4(2), 12—14.
124.
Sakagami, Y., Watanabe, R., Aoyama, C., Matsunaga, S., Higaki, N., and Fujimura, K., 2002, “The intelligent ASIMO: system overview and integration ,” in Proceedings of the 2002 IEEE/RSJ International Conference on Intelligent Robots and Systems, Lausanne , Switzerland, September 30—October 4, pp. 2478—2483.
125.
Saranli, U., Buehler, M., and Koditschek, D.E. , 2001, “RHex—a simple and highly mobile hexapod robot,” The International Journal of Robotics Research20(7), 616—631.
126.
Sawasaki, N., Nakajima, T., Shiraishi, A., Nakamura, S., Wakabayashi, K., and Sugawara, Y., 2003, “Application of humanoid robots to building and home management services,” in Proceedings of the 2003 IEEE International Conference on Robotics and Automation, Taipei, Taiwan, September 14—19, pp. 2992—2996.
127.
Schulz, S., Pylatiuk, C., and Bretthauer, G., 2001, “Walking machine with compliant joints,” in Proceedings CLAWAR'2001 — 4th International Conference on Climbing and Walking Robots, Karlsruhe, Germany, September 24—26, pp. 231—236.
128.
Schwind, W.J. and Koditschek, D.E. , 1997, “Characterisation of monoped equilibrium gaits,” in Proceedings of the 1997 IEEE International Conference on Robotics and Automation, Albuquerque, NM, April 20—25, pp. 1986—1992.
129.
Seifert, H.S., 1967, “The Lunar pogo stick,” Journal of Spacecraft and Rockets4(7), 941—943.
130.
Shigley, J.E., 1960, The Mechanics of Walking Vehicles, Land Locomotion Laboratory Report No. LL-71, U.S. Army Tank-Automotive Command, Warren, Michigan.
131.
Shimoda, S., Wingert, A., Takahashi, K., Kubota, T., and Nakatani, I., 2004, “Hopping direction controllability for small body exploration robot,” in Proceedings of the 2004 IEEE International Conference on Robotics and Automation, New Orleans, LA, April 26—May 1, pp. 2987—2992.
132.
Song, S.-M. and Waldron, K.J., 1989, Machines That Walk: The Adaptive Suspension Vehicle , The MIT Press, Cambridge, MA.
133.
Spenneberg, D., McCullough, K., and Kirchner, F., 2004, “Stability of walking in a multilegged robot suffering leg loss,” in Proceedings of the 2004 IEEE International Conference on Robotics and Automation, New Orleans, LA, April 26—May 1, pp. 2159—2164.
134.
Støy, K., Shen, W.-M., and Will, P., 2003, “Implementing configuration dependent gaits in a self-reconfigurable robot,” in Proceedings of the 2003 IEEE International Conference on Robotics and Automation, Taipei, Taiwan, September 14—19, pp. 3828—3833.
135.
Streich, H. and Adria, O., 2004, “Software approach for the autonomous inspection robot MAKRO,” in Proceedings of the 2004 IEEE International Conference on Robotics and Automation, New Orleans, LA, April 26—May 1, pp. 3411—3416.
136.
Sugahara, Y., Lim, H.-O., Hosobata, T., Mikuriya, Y., Sunazuka, H., and Takanishi, A., 2004, “Realization of dynamic human-carrying walking by a biped locomotor,” in Proceedings of the 2004 IEEE International Conference on Robotics and Automation, New Orleans, LA, April 26—May 1, pp. 3055—3060.
137.
Takahashi, Y., Arai, T., Mae, Y., Inoue, K., and Koyachi, N., 2000, “Development of multi-limb robot with omnidirectional manipulability and mobility,” in Proceedings of the 2000 IEEE/RSJ International Conference on Intelligent Robots and Systems , Takamatsu, Japan, October 30—November 5, pp. 2012—2017.
138.
Takanishi, A., Ishida, M., Yamazaki, Y., and Kato, I., 1985, “The realization of dynamic walking by the biped walking robot wl-10rd,” in Proceedings of the 1985 IEEE International Conference on Advanced Robotics, Tokyo, Japan, November, pp. 459—466.
139.
Takeda, Y., Higuchi, M., Funabashi, H., Oki, Y., and Shimizu, K., 2001, “Development of a walking chair— fundamental investigations for realizing a practical walking chair,” in Proceedings CLAWAR'2001 — 4th International Conference on Climbing and Walking Robots, Karlsruhe, Germany, September 24—26, pp. 1037—1044.
140.
Takita, K., Hodoshima, R., and Hirose, S., 2000, “Fundamental mechanism of dinosaur-like robot TITRUS-II utilizing coupled drive,” in Proceedings of the 2000 IEEE/RSJ International Conference on Intelligent Robots and Systems , Takamatsu, Japan, October 30—November 5, pp. 1670—1675.
141.
Takita, K., Katayama, T., and Hirose, S., 2003, “Development of dinosaur-like robot TITRUS—the efficacy of the neck and tail of miniature dinosaur-like robot TITRUS-III ,” in Proceedings of the 2003 IEEE International Conference on Robotics and Automation, Taipei, Taiwan, September 14—19, pp. 2466—2471.
142.
Tsukagoshi, H., Hirose, S., and Yoneda, K., 1997, “Maneuvering operations of a quadruped walking robot on a slope,” Advanced Robotics11(4), 359—375.
143.
Tummala, R.L., Mukherjee, R., Xi, N., Aslam, D., Dulimarta, H., Xiao, J., Minor, M., and Danghi, G., 2002, “Climbing the walls,” IEEE Robotics and Automation Magazine9(4), 10—19.
144.
Velimirović, A., Velimirović, M., Hugel, V., Iles, A., and Blazevic, P., 1998, “A new architecture of robot with “Wheels-With-Legs” (WWL),” in Proceedings of the AMC'98 — 5th International Workshop on Advanced Motion Control, Coimbra, Portugal, 29 June—1 July, pp. 434—439.
145.
Wallace, H.W., 1942, “Jumping tank vehicle,” Patent Number 2,371,368.
146.
Wettergreen, D., Thorpe, C., and Whittaker, R., 1993, “Exploring Mount Erebus by walking robot ,” Robotics and Autonomous Systems11(3—4), 171—185.
147.
Worst, R., 1998, “Robotic snakes,” in Proceedings of the Third German Workshop on Artificial Life, Bochum, Germany, September 17—18, pp. 113—126.
148.
Yamaguchi, J., Soga, E., Inoue, S., and Takanishi, A., 1999, “Development of a bipedal humanoid robot—control method of whole body cooperative dynamic biped walking,” in Proceedings of the 1999 IEEE International Conference on Robotics and Automation, Detroit, MI, May 10—15, pp. 368—374.
149.
Yamaguchi, J. and Takanishi, A., 1998, “Development of a leg part of a humanoid robot—design of a biped walking robot having antagonistic driven joints using a nonlinear spring mechanism,” Advanced Robotics11(6), 633—652.
150.
Yang, J.-M., 2003, “Fault-tolerant gait generation for locked joint failures,” in Proceedings of the 2003 IEEE International Conference on Systems, Man and Cybernetics, Washington, DC, USA, October 5—8, pp. 2237—2242.
151.
Yang, J.-M. and Kim, J.-H., 1998, “A strategy of optimal fault tolerant gait for the hexapod robot in crab walking,” in Proceedings of the 1998 IEEE International Conference on Robotics and Automation , Leuven, Belgium, May 16—20, pp. 1695—1700.
152.
Ylönen, S.J. and Halme, A.J., 2002, “WorkPartner—Centaur like service robot ,” in Proceedings of the 2002 IEEE/RSJ International Conference on Intelligent Robots and Systems, Lausanne , Switzerland, September 30—October 4, pp. 727—732.
153.
Yokota, S., Kobayashi, H., and Kawabata, K., 2003, “Development of mobile system using leg-type crawler for rough terrain,” in Proceedings CLAWAR'2003 — 6th International Conference on Climbing and Walking Robots , Catania, Italy, September 17—19, pp. 301—307.
154.
Yokoyama, K., Handa,H., Isozumi, T., Fukase, Y., Kaneko, K., Kanehiro, F., Kawai, Y., Tomita, F., and Hirukawa , H., 2003, “ Cooperative works by a human and a humanoid robot,” in Proceedings of the 2003 IEEE International Conference on Robotics and Automation, Taipei, Taiwan, September 14—19, pp. 2985—2991.
155.
Yoneda, K., 2001, “Design of non-bio-mimetic walker with fewer actuators ,” in Proceedings CLAWAR'2001 — 4th International Conference on Climbing and Walking Robots, Karlsruhe, Germany, September 24—26, pp. 115—126.
156.
Zagler, A. and Pfeiffer, F., 2003, “'MORITZ' a pipe crawler for tube junctions ,” in Proceedings of the 2003 IEEE International Conference on Robotics and Automation, Taipei, Taiwan, September 14—19, pp. 2954—2959.
157.
Zhang, Y., Yim, M., Eldershaw, C., Duff, D., and Roufas, K., 2003, “Phase Automata: a programming model of locomotion gaits for scalable chain-type modular robots,” in Proceedings of the 2003 IEEE/RSJ International Conference on Intelligent Robots and Systems, Las Vegas, NV, October 27—31, pp. 2442—2447.
