A method for adapting an engagement point of a disconnect clutch that can be moved between at least one engaged state, in which an output shaft of an internal combustion engine for propelling a vehicle is coupled by way of the disconnect clutch to a rotor of an electric machine for propelling the vehicle, and at least one disengaged state, in which the output shaft is decoupled from the rotor.

A method for adapting an engagement point of a disconnect clutch that can be moved between at least one engaged state, in which an output shaft of an internal combustion engine for propelling a vehicle is coupled by way of the disconnect clutch to a rotor of an electric machine for propelling the vehicle, and at least one disengaged state, in which the output shaft is decoupled from the rotor.

According to some embodiments, a system receives a first control command and a speed measurement of the ADV. The system determines an expected acceleration of the ADV based on the speed measurement and the first control command. The system receives an acceleration measurement of the ADV. The system determines a feedback error based on the acceleration measurement and the expected acceleration. The system updates a portion of the calibration table based on the determined feedback error. The system generates a second control command to control the ADV based on the calibration table having the updated portion to control the ADV autonomously according to the second control command.

A drive train control method includes transmitting a total time period of a stroke phase and a torque phase of an upshift from a transmission control unit of an automatic transmission to an engine control unit of an engine. The method also includes closing a first shift element of the automatic transmission and opening a second shift element of the automatic transmission during the upshift. A control pressure of the first shift element increases during the torque phase relative to the control pressure of the first shift element at an end of the stroke phase. A control pressure of the second shift element decreases during the torque phase relative to the control pressure of the second shift element at the end of the stroke phase. The method further includes, based at least in part on the total time period of the stroke and torque phases, increasing an actual torque of the engine during the upshift such that the actual torque of the engine increases to a higher gear torque prior to an end of the torque phase.

A hybrid vehicle includes an engine; an output member, a rotary electric machine; and a power dividing mechanism including an input element coupled to the engine, a reaction force element coupled to the rotary electric machine, and an output element coupled to the output member. Further, the rotary electric machine is provided such that, in order that a torque corresponding to required engine torque based on an acceleration request is applied to the drive wheel, a reaction torque corresponding to the required engine torque is output, the reaction torque of the rotary electric machine is output when an engine speed is equal to or higher than a predetermined value, and, when the engine speed is lower than the predetermined value, an engine speed increase rate is maximized regardless of an accelerator opening degree.

A shift control method for a hybrid vehicle having a dual clutch transmission may include an undershoot determination step of determining, by a controller, whether the amount of undershoot occurring during an inertia phase of power-off upshift is equal to or greater than a prescribed reference amount, a response-starting step of starting, by the controller, when the amount of undershoot is equal to or greater than the prescribed reference amount, coordinated engine torque control using a first coordinated torque, which is determined as the larger one of engine model torque determined from a model and engine map torque obtained from a map in a response to clutch slippage, and a response-maintaining step of determining, by the controller, second coordinated torque to control the engine and controlling engine torque until the inertia phase is completed.

Provided are a driving force control method and device for a hybrid vehicle, each capable of effectively absorbing torque fluctuation of an engine while suppressing deterioration in energy efficiency. The driving force control device for a hybrid vehicle comprises a PCM configured to: estimate an average torque output by an engine; estimate a torque fluctuation component of the torque output by the engine; set a countertorque for suppressing the estimated torque fluctuation component; and control an electric motor to output the set countertorque, wherein the PCM is operable, under the condition that the average torque output by the internal combustion engine is constant, to set a negative control gain such that, as an engine speed becomes higher, the absolute value of the control gain becomes smaller, and then to set the countertorque based on a product of the estimated torque fluctuation component and the control gain.

Provided are a driving force control method and device for a hybrid vehicle, each capable of effectively absorbing torque fluctuation of an engine while suppressing deterioration in energy efficiency. The driving force control device for a hybrid vehicle comprises a PCM configured to: identify a speed reduction ratio in a driving force transmission mechanism; estimate an average torque output by an engine; estimate a torque fluctuation component of the torque output by the engine; set a countertorque for suppressing the estimated torque fluctuation component; and control an electric motor to output the set countertorque, wherein the PCM is operable, under a condition that the average torque output by the engine and an engine speed are constant, to set the countertorque such that, as the speed reduction ratio becomes smaller, the absolute value of the countertorque becomes larger.

A method estimates a torque of a heat engine in a vehicle hybrid transmission including at least a heat engine and an electric machine together or separately supplying a heat engine torque and heat engine torque intended for wheels of the vehicle. The method uses a measurement of a speed of the heat engine, a value of the heat engine torque reference, and a value of the electric machine torque. The method also sums an estimate of a total torque supplied by the transmission to the wheels and of an estimate of an equivalent resistive torque of the transmission to determine the estimated heat engine torque.

A shifting control method for a vehicle with a dual clutch transmission (DCT), the shifting control method may include controlling engine torque to be increased according to reserve demand torque by giving the reserve demand torque of an engine to be increased to a predetermined value or more when if a controller determines that the vehicle enters a manual power off and downshift shifting; controlling, by the controller, a release side clutch to be released; controlling, by the controller, an engine torque to perform a control so that engine speed follows coupling side input shaft speed; and completing the shifting by performing a control so that a coupling side clutch is coupled when it is determined that the actual shift is completed.