Abstract: A steering control device includes an electronic control unit. The electronic control unit is configured to perform end contact relaxation control for correcting a current command value such that a decrease of an end separation angle indicating a distance of an absolute steering angle from an end-position-corresponding angle is limited when the end separation angle is equal to or less than a predetermined angle and to perform partial release control for decreasing a correction value of the current command value due to execution of the end contact relaxation control based on a steering torque which is input to a steering system when a vehicle is intended to travel while turning at the time of execution of the end contact relaxation control.

Abstract: A straddle electric vehicle (e.g., electric motorcycle) comprising a driving motor and an electric power control unit for controlling electric power supplied from batteries to the driving motor, a case of the electric power control unit is mounted to the battery box from outward, and electrode terminals protruding outward from the case are inserted into insertion holes of the battery box. The electrode terminals protruding into inside of the battery box are connected to electrodes of the batteries via electric conductors such as bus bars. In this structure, electric connecting work between the batteries and the electric power control unit can be easily carried out, high-voltage lines can be minimized in length, and the high-voltage lines are not exposed to outside.

Abstract: An electric vehicle such as an electric motorcycle includes a driving motor which activates a wheel via a driving power transmission mechanism (e.g., transmission, a mechanical oil pump which is mechanically activated by the driving motor to feed oil to the driving power transmission mechanism, and an electric oil pump which feeds the oil to the driving power transmission mechanism. A controller causes the electric oil pump to initiate its operation before the driving motor in a deactivated state initiates its operation under a specified condition, thus preventing a situation in which there is no lubrication oil in the driving power transmission mechanism during starting.

Abstract: A transmission for a motorcycle has an input shaft, an output shaft, a plurality of speed change input gears, and a plurality of speed change output gears, and performs shifting by a shift mechanism. The speed change input gears are fixed to one of the input shaft and the output shaft, e.g., the input shaft, in the axial direction and about the axis, the speed change output gears are fixed to the output shaft in the axial direction and are fitted to be rotatable about the axis, and a plurality of slider rings for dog-coupling are fixed to the other shaft about the axis and are provided to be slidable in the axial direction. An engaging hole is formed in the slider rings, and the speed change gears on the other shaft are formed with an engaging projection which can engage with the engaging hole by the movement of the slider rings in the axial direction.

Abstract: An electric motorcycle comprises a hydraulic pump, an oil passage, a first hydraulic pressure detecting section for detecting a hydraulic pressure in the oil passage, a hydraulic pressure determiner section for determining if the hydraulic pressure is less than a first allowable value, a pump state determiner section for determining if an activation command is output to the hydraulic pump, and a warning output section for outputting a warning signal according to a result of the determination performed by the hydraulic pressure determiner section and a result of the determination performed by the pump state determiner section, wherein the warning signal is not output when the activation command is not output and the hydraulic pressure is less than the first allowable value; and the warning signal is output when the activation command is output and the hydraulic pressure is less than the first allowable value.

Abstract: A straddle electric vehicle (e.g., electric motorcycle) comprising a driving motor and an electric power control unit for controlling electric power supplied from batteries to the driving motor, a case of the electric power control unit is mounted to the battery box from outward, and electrode terminals protruding outward from the case are inserted into insertion holes of the battery box. The electrode terminals protruding into inside of the battery box are connected to electrodes of the batteries via electric conductors such as bus bars. In this structure, electric connecting work between the batteries and the electric power control unit can be easily carried out, high-voltage lines can be minimized in length, and the high-voltage lines are not exposed to outside.

Abstract: A fuel cell system includes a fuel cell, anode gas pressure adjusting means that adjusts the pressure of an anode gas supplied to the fuel cell, and cathode gas pressure adjusting means that adjusts the pressure of a cathode gas supplied to the fuel cell. The system further includes pressure control means that sets the pressure of the anode gas that is supplied when starting the fuel cell higher than the pressure of the anode gas that is supplied during power generation in the fuel cell, and controls the anode gas pressure adjusting means and the cathode gas pressure adjusting means so that a cathode gas pressure increase is started in accordance with the start of an anode gas pressure increase when the pressure of the anode gas is increased to the set pressure.

Abstract: A transmission for motorcycle which has an input shaft (5), an output shaft (6), a plurality of speed change input gears, and a plurality of speed change output gears, and performs shifting by a shift mechanism is provided. The speed change input gears are fixed to one of the input shaft (5) and the output shaft (6), e.g., the input shaft (5), in the axial direction and about the axis, the speed change output gears fixed to the output shaft (6) in the axial direction and are fitted to be rotatable about the axis, and a plurality of slider rings (51, 52, 53) for dog-coupling are fixed to the other shaft about the axis and are provided to be slidable in the axial direction. An engaging hole (54) is formed in the slider rings (51, 52, 53), and the speed change gears on the other shaft are formed with an engaging projection (56) which can engage with the engaging hole (54) by the movement of the slider rings (51, 52, 53) in the axial direction.

Abstract: A fuel cell system includes a fuel cell, anode gas pressure adjusting means that adjusts the pressure of an anode gas supplied to the fuel cell, and cathode gas pressure adjusting means that adjusts the pressure of a cathode gas supplied to the fuel cell. The system further includes pressure control means that sets the pressure of the anode gas that is supplied when starting the fuel cell higher than the pressure of the anode gas that is supplied during power generation in the fuel cell, and controls the anode gas pressure adjusting means and the cathode gas pressure adjusting means so that a cathode gas pressure increase is started in accordance with the start of an anode gas pressure increase when the pressure of the anode gas is increased to the set pressure.

Abstract: A fuel cell is provided with a membrane-electrode assembly 15 in which catalyst layers 15b as a pair of electrodes are bonded to both the surfaces of an electrolyte membrane 15a, and diffusion layers 16 arranged on both the surfaces of this membrane-electrode assembly 15. The membrane-electrode assembly 15 and the diffusion layer 16s are laminated without bonding at least a part between the membrane-electrode assembly 15 and the diffusion layers 16. Thus, sliding and separating between the catalyst layer 15b and the diffusion layers 16 are allowed.