Patent ID: 6607060
Filing Date: 2003-08-19
Classification: B60W,F16D

Abstract:
A hydraulic mechanism for use in a clutch operating system that operates a vehicle clutch using a motor during normal operation and uses a clutch pedal device to operate the clutch during motor malfunctions, the hydraulic mechanism comprising:a first cylinder being configured to be driven by the motor; and a second cylinder being configured to be supplied with hydraulic pressure from said first cylinder and the clutch pedal device, said second cylinder comprising, a cylinder tube, a first piston being disposed inside said cylinder tube, said first piston being configured to be driven by hydraulic pressure from said first cylinder, and said first piston being configured to supply hydraulic pressure to the clutch; a second piston being disposed inside said cylinder tube, said second piston being configured to drive said first piston when hydraulic pressure is supplied from the clutch pedal, said second piston being configured to supply hydraulic pressure to the clutch.