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AssigneesHitachi, Ltd., Hitachi Car Engineering Co., Ltd.
InventorsHiroyuki Sakamoto, Masahiko Ibamoto
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To enable compactness by lowering the connecting force of dog clutch so as to decrease the energy consumption and reduce the size of a system. A method of changing gears of automobile which moves the dog clutch in the axial direction at the time of gear change, while applying weak periodic torque vibration between the gear of the dog clutch and change gear of the gear shifter, and disconnects the two gears and, after the gear of the dog clutch and change gear of the gear shifter have been disconnected, also moves the dog clutch in the axial direction, while applying weak periodic rotating speed vibration between the gear of the dog clutch and another change gear of the gear shifter, and connects the two gears.
A change gear trains changeover method for changing gears of an automotive gear shifter for changing a driving torque from a primer mover and transmitting it to a wheel by selectively shifting multiple steps of the change gear trains of different change ratios installed between an input shaft and an output shaft of the gear shifter, the change gear trains of different change ratios being shifted selectively by operating a dog clutch, the change gear trains changeover method comprising
A change gear trains changeover method for changing gears of an automotive gear shifter comprising:
Dependencies are inferred from the claim text.