摘要:
The present invention provides an emergency control apparatus, and method which maintains the power flow between a battery and an inverter and the operation state of an electric vehicle in the event of failure of a bidirectional DC-DC converter connected between the battery as a power source and the inverter for operating a drive motor.
摘要:
The present invention provides an emergency control apparatus, and method which maintains the power flow between a battery and an inverter and the operation state of an electric vehicle in the event of failure of a bidirectional DC-DC converter connected between the battery as a power source and the inverter for operating a drive motor.
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 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 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 an inverter circuit for a vehicle, which includes: a switching unit that includes a plurality of switching elements and switches a direct current into an alternating current; and a variable clamping unit that clamps an overshoot in case the overshoot is generated, and stops the operation of the switching unit in case a system voltage is greater than a clamping breakdown voltage. The circuit enables a voltage (DC input voltage) greater than a breakdown voltage of clamping unit to be used as a system voltage.
摘要:
The present invention provides an inverter circuit for a vehicle, which includes: a switching unit that includes a plurality of switching elements and switches a direct current into an alternating current; and a variable clamping unit that clamps an overshoot in case the overshoot is generated, and stops the operation of the switching unit in case a system voltage is greater than a clamping breakdown voltage. The circuit enables a voltage (DC input voltage) greater than a breakdown voltage of clamping unit to be used as a system voltage.
摘要:
Disclosed is a technique for compensating for an abnormal output of a resolver. More specifically, a central processing unit (CPU) sets a current motor position angle before compensation θn,ORG as a current motor position angle θn and obtains a motor position change Δθn[rad] between a current sampling [n] and a previous sampling [n−1] and a motor position change Δθn-1[rad] between the previous sampling [n−1] and a more previous sampling [n−2]. Subsequently, a variable A is calculated based on the above angles. The CPU determines whether to perform the compensation by comparing the calculated variable A and a calibration variable K and calculates a current motor position angle for compensation θn[rad]. Finally, the CPU compensates for the absence of motor rotor position information with the calculated current motor position angle for compensation θn[rad].
摘要翻译:公开了一种用于补偿分解器的异常输出的技术。 更具体地说,中央处理单元(CPU)将补偿前的当前电动机位置角度设置为:n,ORG作为当前电动机位置角度& n; n并获得电动机位置变化&Dgr;电流采样之间的n [rad] [n]和先前的采样[n-1]和前一个采样[n-1]之间的电机位置变化&Dgr;Θ n-1 [rad]。 随后,基于上述角度计算变量A. CPU通过比较计算的变量A和校准变量K来确定是否执行补偿,并计算补偿的当前电动机位置角; n [rad]。 最后,CPU补偿电机转子位置信息的不存在与计算出的当前电机位置角度进行补偿; n [rad]。
摘要:
Disclosed is a technique for compensating for an abnormal output of a resolver. More specifically, a central processing unit (CPU) sets a current motor position angle before compensation θn,ORG as a current motor position angle θn and obtains a motor position change Δθn[rad] between a current sampling [n] and a previous sampling [n−1] and a motor position change Δθn-1[rad] between the previous sampling [n−1] and a more previous sampling [n−2]. Subsequently, a variable A is calculated based on the above angles. The CPU determines whether to perform the compensation by comparing the calculated variable A and a calibration variable K and calculates a current motor position angle for compensation θn[rad]. Finally, the CPU compensates for the absence of motor rotor position information with the calculated current motor position angle for compensation θn[rad].
摘要:
A method for control of an electric vehicle converter is provided. The converter is adapted to drop voltage and a counting unit is adapted to count a signal generated by the converter. The method includes inputting a signal that is generated by the converter to the counting unit during operation of the converter and counting the signal. Additionally, whether a counting result of the counting unit corresponds to a predetermined interval is determined and the converter is determined to be out-of-order when the counting result does not correspond to the predetermined interval.