Apparatus and method for controlling transmission of vehicle
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorJoon Shik Park
Life of this patent
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Abstract
An apparatus for controlling a transmission of a vehicle includes a determination device that determines whether a condition for a regenerative braking based lift foot up shift is satisfied, a controller that performs regenerative brake control and performs a shift by controlling release clutch torque and lock-up clutch torque, when the condition for the regenerative braking based lift foot up shift is satisfied, and a torque compensation device that compensates for the release clutch torque according to an RPM variation during the shift.
Claims12
An apparatus for controlling a transmission of a vehicle, the apparatus comprising:
- a determination device configured to determine whether a condition for a regenerative braking based lift foot up shift is satisfied;
- a controller configured to perform regenerative brake control and perform a shift by controlling release clutch torque and lock-up clutch torque, when the condition for the regenerative braking based lift foot up shift is satisfied;
- and
- a torque compensation device configured to compensate for the release clutch torque according to an RPM variation during the shift;
- wherein the torque compensation device is configured to:
- compare a target RPM variation and an input RPM variation during the shift;
- compensate for the release clutch torque to increase the release clutch torque by a first compensation value when the target RPM variation is greater than the input RPM variation;
- and
- compensate for the release clutch torque to decrease the release clutch torque by a first compensation value when the target RPM variation is less than or equal to the input RPM variation wherein the controller is configured to determine the release clutch torque by applying a compensation value to an input torque value.
A method for controlling a transmission of a vehicle, the method comprising:
- determining, by a determination device, whether a condition for a regenerative braking based lift foot up shift is satisfied;
- performing regenerative brake control, by a controller, when the condition for the regenerative braking based lift foot up shift is satisfied;
- performing a shift, by the controller, by controlling release clutch torque and lock-up clutch torque;
- and
- compensating for the release clutch torque, by a torque compensation device, according to an RPM variation during the shift;
- wherein the compensating of the release clutch torque includes:
- comparing a target RPM variation and an input RPM variation during the shift;
- compensating for the release clutch torque to increase the release clutch torque by a first compensation value when the target RPM variation is greater than the input RPM variation;
- and
- compensating for the release clutch torque to decrease the release clutch torque by a first compensation value when the target RPM variation is less than or equal to the input RPM variation wherein the controller is configured to determine the release clutch torque by applying a compensation value to an input torque value.
Dependencies are inferred from the claim text.