Hyundai Motor Company

Kia Motors Corporation

Won Woo Suh

Jae Sung Bang

Hong Chul Shin

Hong Kee Sim

Young Min Yun

Youngkwan Ko

A hybrid electric vehicle control apparatus increases a speed of an engine in view of a speed of a drive motor when starting the engine, and turns on an engine clutch after identifying a self-operation of the engine, based on a disturbance torque, thereby rapidly synchronizing the engine speed and the drive motor speed and preventing waste of fuel, which in turn improves fuel efficiency.

Apparatus and method for controlling hybrid electric vehicle

An anti-jerk control system and method of an eco-friendly vehicle are provided to prevent a driver from sensing a difference in vehicle starting at an initial stage when the vehicle is parked on a downhill road. The anti-jerk control method uses a motor as a driving source and includes calculating an actual speed of the motor, calculating a model speed of the motor, and acquiring a gradient of a road, on which the vehicle is located, using a gradient detector. Additionally, the method includes determining a speed offset value that corresponds to the acquired gradient, compensating the model speed by the speed offset value, and calculating a motor vibration component using a difference between the compensated model speed and the actual speed of the motor. Then, anti-jerk compensation torque is calculated using the calculated motor vibration component.

Anti-jerk control system and method of eco-friendly 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.

Growing community of inventors

Incheon, South Korea

Won Woo Suh