Hyundai Motor Company

Youngkwan Ko

Jeong Soo Eo

Mu Shin Kwak

Jae Sung Bang

Byunghoon Yang

Tae Hee Jung

Hong Kee Sim

Won Woo Suh

An apparatus for reducing vibrations of a two-cylinder engine for a hybrid electric vehicle includes a reference signal generator for generating a first reference signal and a first reference phase, a speed calculator for calculating a speed of the motor based on the position of the motor, a vibration extractor for extracting a first vibration signal based on the speed of the motor, a variable filter, a filter coefficient updater, a phase calculator, a phase shift compensator, a synchronization signal generator for generating a first synchronization signal synchronized with the first vibration signal based on a first reference phase transferred from the reference signal generator, the second phase difference transferred from the phase calculator and the first compensation value transferred from the phase shift compensator, an inverse phase signal generator, and a torque generator for generating a final command torque based on the first inverse phase signal.

Apparatus and method of reducing vibrations of hybrid electric vehicle

A method and system for controlling anti-jerk in order to reduce vibration of a vehicle is provided. More specifically, a rotation speed (&#x3c9;) of a driving source device of the vehicle is received and a speed (&#x3c9;, &#x3c9;) of a left wheel and a right wheel connected to the driving source device is detected by a sensor respectively. Then, a controller, which receives this data, calculates an average speed (&#x3c9;) based on the detected left and right wheel speeds, produces a virtual speed through interpolation of the detected left and right wheel speeds and the average speed based on a predetermined sampling value, and calculates a model speed (&#x3c9;) based on the detected left and right wheel speeds, the average speed, the virtual speed, and a final gear ratio (&#x3b3;; where j is the number of the gear) considering a final reduction gear ratio (FGR) and a current gear of the vehicle.

Method and system for controlling anti-jerk of vehicle

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Seoul, South Korea

Youngkwan Ko