摘要:
A method and apparatus for detecting an envelope are provided. The method and apparatus may detect an envelope of a modulating signal based on a low calculation complexity and a simple circuit configuration, by detecting an envelope for a plurality of sampling signals with equal time intervals.
摘要:
Disclosed is a vibration control apparatus of a driving system for a vehicle. More specifically, a toque command generating portion receives a demand torque from a driver and generates a torque command for operating a motor. A torque control portion receives the torque command from the toque command generating portion, collects information on exterior disturbances, and controls an actual torque of the motor accordingly. Lastly, a damping portion extracts and filters a vibration element generated due to operation of the motor by control of the torque control portion and generates a target torque to eliminate vibrations from the motor.
摘要:
A control method for a powertrain of a hybrid vehicle executing a compound split mode where a first carrier and a second ring gear are selectively connected. More specifically, a controller, determines a target torque of the second motor/generator based on a gear ratio of the first sun gear and the first ring gear, a gear ratio of the second sun gear and the second ring gear, a demand torque of the powertrain, and an output torque of the first motor/generator; determines a compensation value based on a target speed of the engine and a current speed of the engine; and determines a final torque of the second motor/generator based on the target torque of the second motor/generator and the compensation value, and controlling the second motor/generator according to the final torque of the second motor/generator.
摘要:
A method and apparatus for security of communication devices that communicate with each other in a near field are provided. A Near Field Communication (NFC) security apparatus may detect the presence of a neighboring device other than communication devices, based on a change in a near field. In response to detecting the presence of the neighboring device, the NFC security apparatus may control an amount of energy transmitted by the communication devices such that the neighboring device may be prevented from accurately receiving a signal transmitted between the communication devices.
摘要:
Disclosed is a technique for calculating Distance to Empty (DTE) in an electric vehicle. In the disclosed technique, a past driving average fuel efficiency is calculated. An air conditioning average energy consumption rate during past driving is calculated. A past driving average fuel efficiency when assuming an air conditioning apparatus is not used from the past driving average fuel efficiency and the air conditioning average energy consumption rate is calculated. A current driving fuel efficiency is calculated. Then the past driving average fuel efficiency when assuming the air conditioning apparatus is not used and the current driving fuel efficiency are blended, and the DTE is calculated from the blended driving fuel efficiency.
摘要:
Disclosed is a technique for inducing economic driving for a vehicle. In particular, a control unit calculates a driving resistance of a vehicle based on a current rolling friction, air resistance, and a road grade of the vehicle. The an amount of air-conditioning energy consumed by the vehicle is calculated by the control unit, and in response the calculated driving resistance and air-conditioning energy are substituted into a data map to continuously calculate the optimal economic vehicle speed of the vehicle in real time. The optimal economic vehicle speed calculated by the control unit is then displayed to a driver via a display unit.
摘要:
Provided are a devices, systems and methods for performing communication using wireless power. According to one general aspect, a communication device using wireless power may include: a controller configured to control mutual resonance between a target resonator and a source resonator; a demodulator configured to demodulate information transmitted from the source resonator based on an amount of energy received from the source resonator; and a modulator configured to modulate information based on the mutual resonance.
摘要:
Provided is an apparatus and method for wirelessly transmitting power. According to one general aspect, a communication device using wireless power may include: a transmitter configured to transmit, to a target resonator, energy stored in a source resonator through mutual resonance; an energy compensator configured to compensate for energy expended in the source resonator; and a controller configured to control an electrical connection providing energy to the source resonator.
摘要:
A method and apparatus to share energy in a wireless device are provided. A power sharing method between a wireless device and at least one neighboring wireless device, includes scanning, by the wireless device, the at least one neighboring wireless device. The power sharing method further includes determining to share power with the at least one neighboring wireless device. The power sharing method further includes sharing power with the at least one neighboring wireless device.
摘要:
The present invention provides a system and method for estimating an engine operating point of a hybrid vehicle. The system includes an engine target speed conversion unit, a PI control unit, an anti wind-up feedback unit, and an engine torque compensation unit. The engine target speed conversion unit converts a target speed of the engine into a target speed of the first motor. The PI control unit calculates and orders a torque with respect to the first motor based on the target speed of the first motor. The anti wind-up feedback unit feeds back an anti wind-up term that is a torque shortage of the first motor to an engine torque compensation unit when the engine operating point is not changed into the target speed of the engine. The engine torque compensation unit compensates a calculated torque for an engine target torque to order the engine target torque. The engine torque compensation unit includes a torque conversion calculator for converting the anti wind-up term into a torque corresponding to an engine shaft.