Patent ID: 9663093
Date: 2017-05-30
CPC Classifications: B60T,B60W,F16D,Y10T

Claim:
1. A clutch disengagement control mechanism for a mechanical automatic transmission, comprising: a vehicle speed measurement device that measures a vehicle speed; a braking rate of deceleration measurement device that measures a braking rate of deceleration, the braking rate of deceleration being measured by % per second; a clutch operation device that performs a clutch disengagement operation; and a control device, operably coupled to the vehicle speed measurement device and the braking rate of deceleration measurement device, wherein the control device, which receives data from an engine-torque measurement device and a clutch stroke measurement device, calculates and compares the vehicle speed and the braking rate of deceleration being measured by % per second, wherein when the vehicle speed is more than or equal to a first threshold, the control device issues to the clutch operation device, a control signal that disengages a clutch when the braking rate of deceleration being measured by % per second is more than or equal to a second threshold, and wherein, when the vehicle speed is less than the first threshold, the control device issues to the clutch operation device, a control signal that disengages the clutch when the braking rate of deceleration being measured by % per second is more than or equal to a third threshold, wherein the second threshold of the brake operation speed is a threshold in high-speed driving and the third threshold of the brake operation speed is a threshold in low-speed driving, and wherein the second threshold of the braking rate of deceleration being measured by % per second is a value more than the third threshold.