Clutch control device in power unit for vehicle
AssigneeHonda Motor Co., Ltd.
InventorsToshimasa Mitsubori, Takamori Shirasuna, Eiji Kittaka
Life of this patent
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Abstract
A solenoid body is attached to an outer surface side of a clutch cover attached to an engine main body so as to cover a pair of hydraulic clutches. A hydraulic control solenoid valve for controlling pressure of a hydraulic oil from an oil pump, a single switching valve for alternatively selecting hydraulic chambers of the pair of hydraulic clutches to be supplied with the hydraulic oil from the hydraulic control solenoid valve, and a shift solenoid valve for controlling operation of the switching valve are attached to the solenoid body.
Claims17
A clutch control device, comprising:
- a pair of hydraulic clutches configured to switch between connection and disconnection of power transmission according to changes in oil pressure of hydraulic chambers;
- a hydraulic control solenoid valve configured to control pressure of a hydraulic oil from an oil pump;
- a single switching valve configured to alternatively select the hydraulic chambers of the pair of hydraulic clutches to be supplied with the hydraulic oil from the hydraulic control solenoid valve;
- a shift solenoid valve configured to control operation of the single switching valve;
- and
- a solenoid body attached to an outer surface side of a clutch cover attached to an engine main body covering the pair of hydraulic clutches,
- wherein the pair of hydraulic clutches is interposed midway in a power transmission system between a crankshaft of an internal combustion engine and a driving wheel, and
- wherein the hydraulic control solenoid valve, the single switching valve, and the shift solenoid valve are attached to the solenoid body.
A clutch control device, comprising:
- switching means for switching between connection and disconnection of power transmission according to changes in oil pressure of hydraulic chambers;
- pressure controlling means for controlling pressure of a hydraulic oil from an oil pump;
- selecting means for alternatively selecting the hydraulic chambers of the pair of hydraulic clutches to be supplied with the hydraulic oil from the hydraulic control solenoid valve;
- and
- operation controlling means for controlling operation of the single switching valve,
- wherein the switching means is interposed midway in a power transmission system between a crankshaft of an internal combustion engine and a driving wheel,
- wherein a solenoid body is attached to an outer surface side of a clutch cover attached to an engine main body covering the switching means, and
- wherein the pressure controlling means, the selecting means, and the operation controlling means are attached to the solenoid body.
A method of controlling a clutch control device, the method comprising:
- switching between connection and disconnection of power transmission according to changes in oil pressure of hydraulic chambers with a pair of hydraulic clutches;
- controlling pressure of a hydraulic oil from an oil pump with a hydraulic control solenoid valve;
- alternatively selecting the hydraulic chambers of the pair of hydraulic clutches to be supplied with the hydraulic oil from the hydraulic control solenoid valve with a single switching valve;
- controlling operation of the single switching valve with a shift solenoid valve;
- attaching a solenoid body to an outer surface side of a clutch cover attached to an engine main body covering the pair of hydraulic clutches,
- wherein the pair of hydraulic clutches is interposed midway in a power transmission system between a crankshaft of an internal combustion engine and a driving wheel, and
- wherein the hydraulic control solenoid valve, the single switching valve, and the shift solenoid valve are attached to the solenoid body.
Dependencies are inferred from the claim text.