摘要:
The present invention provides a method for compensating nonlinearity of a resolver to control a motor in hybrid and fuel cell vehicles, thereby stably controlling the motor current during high-torque and high-speed operation. In preferred aspects, the present invention provides a method for compensating nonlinearity of a resolver to control a motor in hybrid and fuel cell vehicles, the method including collecting resolver position data; determining whether to perform resolver position correction in the corresponding vehicle; and compensating nonlinearity of the resolver based on the collected resolver position data, if it is determined that the resolver position correction is not performed.
摘要:
The present invention relates to a circuit and method for detecting a short and a disconnection of a resolver for a Hybrid Electric Vehicle (HEV), which can accurately analyze and detect the fault code of the resolver which detects the speed of a drive motor for an HEV and the angle of a rotator for an HEV.For this, the circuit of the present invention is configured such that resistors for detection of a short/disconnection are connected between output signal terminals of a resolver which are connected to input terminals of an RDC connected to a CPU, and the CPU measures certain voltages, obtained according to voltage division by the resistors for detection of a short/disconnection and pull-up resistors connected between a power source and the output signal terminals, with reference to differential signals which are output signals provided to the RDC through the output signal terminals.
摘要:
The present invention provides a method for measuring the temperature of a motor for a hybrid electric vehicle. In preferred embodiments, the method of the present invention can preferably ensure the stability and reliability of motor control by extending the linearity of a temperature sensor attached to the motor within a required measurement range. The present invention preferably provides a method for measuring the temperature of a motor for a hybrid electric vehicle, in which a required measurement range of motor temperature is divided into high and low temperature ranges and a hardware gain circuit is divided into first and second gain blocks such that the first gain block measures the temperature of the high temperature range and the second gain block measures the temperature of the low temperature range.
摘要:
The present invention provides a method for controlling a permanent magnet synchronous motor used in electric vehicles such as hybrid vehicles, fuel cell vehicles, and the like. The method for controlling the permanent magnet synchronous motor preferably includes detecting an absolute angular position of a permanent magnet synchronous motor; calculating a rotational speed of the permanent magnet synchronous motor based on the detected absolute angular position; detecting a voltage of a battery as a power source; calculating a compensated speed, for which a battery voltage variation is compensated, from the rotational speed of the permanent magnet synchronous motor based on a torque command, the rotational speed of the permanent magnet synchronous motor, and the battery voltage; generating a d-axis current command and a q-axis current command corresponding to the torque command and the compensated speed using a predetermined current command map; converting three-phase currents flowing into the permanent magnet synchronous motor into a d-axis feedback current and a q-axis feedback current based on the detected absolute angular position; calculating a d-axis voltage command and a q-axis voltage command based on the d-axis current command, the q-axis current command, the d-axis feedback current, and the q-axis feedback current; converting the d-axis voltage command and the q-axis voltage command into three-phase voltage commands based on the detected absolute angular position; and controlling the operation of the permanent magnet synchronous motor based on the three-phase voltage commands.
摘要:
The present invention provides a method for measuring the temperature of a motor for a hybrid electric vehicle. In preferred embodiments, the method of the present invention can preferably ensure the stability and reliability of motor control by extending the linearity of a temperature sensor attached to the motor within a required measurement range.The present invention preferably provides a method for measuring the temperature of a motor for a hybrid electric vehicle, in which a required measurement range of motor temperature is divided into high and low temperature ranges and a hardware gain circuit is divided into first and second gain blocks such that the first gain block measures the temperature of the high temperature range and the second gain block measures the temperature of the low temperature range.
摘要:
Provided is a high manganese nitrogen-containing steel sheet. The high manganese nitrogen-containing steel sheet according to the present invention comprises 0.5 to 1.0 wt % of carbon, 10 to 20 wt % of manganese, 0.02 to 0.3 wt % of nitrogen, with a remainder of Fe and unavoidable impurities. The high manganese nitrogen-containing steel sheet according to the present invention produces an austenite phase at room temperature, in which the stacking fault energy is effectively controlled by adding chrome and nitrogen. Accordingly, the high manganese nitrogen-containing steel sheet of the present invention produces a mechanical twin during the plastic deformation of the steel sheet, thereby increasing the work hardening rate, tensile strength, and workability.
摘要:
The present invention provides a method for compensating nonlinearity of a resolver to control a motor in hybrid and fuel cell vehicles, thereby stably controlling the motor current during high-torque and high-speed operation. In preferred aspects, the present invention provides a method for compensating nonlinearity of a resolver to control a motor in hybrid and fuel cell vehicles, the method including collecting resolver position data; determining whether to perform resolver position correction in the corresponding vehicle; and compensating nonlinearity of the resolver based on the collected resolver position data, if it is determined that the resolver position correction is not performed.
摘要:
The present invention provides a battery charging apparatus with reduced weight, volume and manufacturing cost. The apparatus includes: an alternating current power source including a first electrode and a second electrode and supplying an alternating voltage for charging the battery; a diode including an anode electrode connected to the battery and a cathode electrode connected to the second electrode and half-wave rectifying the alternating voltage applied from the alternating current power source; a three-phase motor connected to the first electrode and transmitting to the battery the half-wave rectified voltage applied from the diode and the alternating current power source; and an inverter connected between the three-phase motor and the battery and converting the voltage applied from the three-phase motor into a direct voltage to transmit the direct voltage to the battery. Alternatively, the apparatus may comprise an alternating current power source, an inverter, a three-phase motor and a switching unit.
摘要:
A method for controlling a permanent magnet synchronous motor includes detecting an absolute angular position and using the angular position to calculate a rotational speed of the motor; detecting a voltage of a battery as a power source; calculating a compensated speed from a rotational speed of the permanent magnet synchronous motor based on a torque command, the rotational speed of the permanent magnet synchronous motor, and the battery voltage; generating a d-axis current command and a q-axis current command corresponding to the torque command and the compensated speed; calculating a d-axis voltage command and a q-axis voltage command based on the d-axis current command and the q-axis current command; converting the d-axis voltage command and the q-axis voltage command into three-phase voltage commands based on the detected absolute angular position; and controlling the operation of the permanent magnet synchronous motor based on the three-phase voltage commands.