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AssigneeHonda Motor Co., Ltd.
InventorsKosuke Tsunashima, Toshimitsu Nakajima, Naoki Sakamoto
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A method of controlling the electric current of a linear solenoid valve by performing pulse width modulation on a coil current for energizing a linear solenoid of the linear solenoid valve to adjust the hydraulic pressure of a working oil in a hydraulic clutch for transmitting and interrupting the rotational drive power from a power source to a drive wheel of a vehicle. The method includes setting the period of the pulse width modulation to a shorter value as the degree to which the hydraulic clutch is engaged increases from a disengaged state thereof. Here, the period of the pulse width modulation may be set in accordance with the variation of a duty ratio depending on the hydraulic pressure corresponding to the degree to which the hydraulic clutch is engaged.
A method of controlling an electric current of a linear solenoid valve by performing pulse width modulation on a coil current for energizing a linear solenoid of the linear solenoid valve which is open when energized to adjust the hydraulic pressure of a working oil in a hydraulic clutch for transmitting and interrupting rotational drive power from a power source to a drive wheel of a vehicle, the method comprising:
A method of controlling an electric current of a normally open linear solenoid valve by performing pulse width modulation on a coil current for energizing a linear solenoid of the linear solenoid valve which is closed when energized to adjust the hydraulic pressure of a working oil in a hydraulic clutch for transmitting and interrupting rotational drive power from a power source to a drive wheel of a vehicle, the method comprising:
Dependencies are inferred from the claim text.