Abstract: A vehicle with two parallel wheels according to the invention has split steps (2L, 2R), a vehicle body, a pair of wheels (4L, 4R) coaxially parallelly arranged, a pair of wheel drive units for independently driving the wheels (4L, 4R), and a pair of step run-on assisting mechanisms (8L, 8R) arranged corresponding to the wheels (4L, 4R) and changing the degree of dependency of step run-on operation. The step run-on assisting mechanisms (8L, 8R) each have an assisting turning member (15) having a circular arc support surface with a curvature radius greater than the radius of the wheel (4L, 4R) and having its turning center in front, in the travel direction, of the rotation center of the wheel, a link member (16) rotatably supporting the assisting turning member (15), and a damper (25, 26) for changing, according to the speed at which the assisting turning member (15) collides with a step, force retaining one end of the link member (16).

Abstract: A vehicle with two parallel wheels according to the invention has split steps (2L, 2R), a vehicle body, a pair of wheels (4L, 4R) coaxially parallelly arranged, a pair of wheel drive units for independently driving the wheels (4L, 4R), and a pair of step run-on assisting mechanisms (8L, 8R) arranged corresponding to the wheels (4L, 4R) and changing the degree of dependency of step run-on operation. The step run-on assisting mechanisms (8L, 8R) each have an assisting turning member (15) having a circular arc support surface with a curvature radius greater than the radius of the wheel (4L, 4R) and having its turning center in front, in the travel direction, of the rotation center of the wheel, a link member (16) rotatably supporting the assisting turning member (15), and a damper (25, 26) for changing, according to the speed at which the assisting turning member (15) collides with a step, force retaining one end of the link member (16).

Abstract: A drive control apparatus able to hold an autonomously stabilized posture by a small size configuration by independently detecting abnormalities in a drive system of a first motor and a drive system of a second motor at controllers, outputting the results to majority decision circuits, and having the majority decision circuits turn switches on/off by majority decision based on the results.

Abstract: A drive control apparatus able to hold an autonomously stabilized posture by a small size configuration by independently detecting abnormalities in a drive system of a first motor and a drive system of a second motor at controllers, outputting the results to majority decision circuits, and having the majority decision circuits turn switches on/off by majority decision based on the results.

Abstract: An active suspension system includes active cylinders having a working chamber and disposed between a vehicular body and road wheels at respective of suspension systems. The system also includes vehicular height monitoring means for monitoring vehicular height at respective ones of the suspension systems for providing vehicular height indicative data. The system performs a height regulating mode operation, in which a front height adjustment command for the front suspension systems is derived on the basis of an average height data related to front-left and front-right vehicular height data, and a rear height adjustment command for rear suspension systems derived on the basis of an average height data related to rear-left and rear-right vehicular height data.

Abstract: An actively controlled suspension system arranges a pressure control valve so arranged as to longitudinally direct a valve bore in which a movable valve spool for establishing and blocking fluid communication between a fluid pressure source and a working chamber in a hydraulic cylinder, is disposed. The longitudinal force to be exerted on the vehicle body is smaller in comparison with the lateral and vertical force. Therefore, a force of spring for restricting movement of the valve spool can be minimized.