Apparatus and method for controlling an accelerator for electric vehicles
    1.
    发明授权
    Apparatus and method for controlling an accelerator for electric vehicles 有权
    用于控制电动车辆的加速器的装置和方法

    公开(公告)号:US08214096B2

    公开(公告)日:2012-07-03

    申请号:US12518731

    申请日:2007-12-11

    Abstract: The present invention provides an apparatus and method for controlling an accelerator for electric vehicles. The method comprises steps of: acquiring an actual accelerator pedal depth value and a current vehicle speed; determining a maximum output torque of motor under the current vehicle speed based on the current vehicle speed; and controlling the output torque of motor in such a way that the growth rate of the output torque higher than that of the actual accelerator pedal depth value at the beginning and then closed to that of the actual accelerator pedal depth value during the actual accelerator pedal depth value growing. The invention makes the output torque grown rapidly within the shallow range of accelerator pedal depth, while makes the output torque grown closed to that of the accelerator pedal depth within the relative deep range of accelerator pedal depth. Thus during the initial stage of acceleration, the vehicle may rapidly output a bigger torque, with an excellent dynamic response, to improve the driving comfort.

    Abstract translation: 本发明提供一种用于控制电动车辆的加速器的装置和方法。 该方法包括以下步骤:获取实际加速踏板深度值和当前车速; 基于当前车速确定当前车速下的电动机的最大输出转矩; 并且以这样的方式控制电动机的输出转矩,使得输出转矩的增长率高于开始时的实际加速器踏板深度值的增长速率,然后在实际加速器踏板深度期间闭合至实际加速器踏板深度值 价值增长。 本发明使得输出扭矩在加速踏板深度的浅范围内快速生长,同时使加速踏板深度的相对深度范围内的输出转矩增加到加速踏板深度的输出转矩。 因此,在加速的初始阶段,车辆可以快速输出更大的转矩,具有出色的动态响应,以提高驾驶舒适性。

    Control method of electromotor
    2.
    发明授权
    Control method of electromotor 有权
    电动机控制方法

    公开(公告)号:US08207701B2

    公开(公告)日:2012-06-26

    申请号:US12447429

    申请日:2006-10-31

    CPC classification number: H02P29/0016 G01D21/00 G01P3/48 H02P21/22

    Abstract: A control method of the electromotor comprises: setting a target alternating axis current based on the rotor angular velocity of the electromotor and a target direct axis current based on the torque of the motor; simultaneously detecting three-phase currents and current rotor position angle of the electromotor; converting the three-phase currents to an actual alternating axis current and an actual direct axis current by Park and Clark conversions; inputting the difference between the target current and the actual current to a current loop, outputting the required direct axis current and the required alternating axis current; determining the three phase voltages according to the required direct axis current and alternating axis current and the angle of the electromotor rotor position; obtaining PWM control waveform through three-phase voltages, wherein said PWM control waveform is configured to control the conversion from direct current to alternating current and drives the electromotor.

    Abstract translation: 电动机的控制方法包括:基于电动机的转矩,基于电动机的转子角速度和目标直轴电流来设定目标交变轴电流; 同时检测电动机的三相电流和电流转子位置角; 通过Park和Clark转换将三相电流转换为实际交流轴电流和实际直轴电流; 将目标电流和实际电流之间的差分输入到电流回路,输出所需的直轴电流和所需的交变轴电流; 根据所需的直轴电流和交流轴电流以及电动机转子位置的角度确定三相电压; 通过三相电压获得PWM控制波形,其中所述PWM控制波形被配置为控制从直流到交流的转换并驱动电动机。

    Control device of a four-wheel drive electric vehicle and method thereof
    3.
    发明授权
    Control device of a four-wheel drive electric vehicle and method thereof 有权
    四轮驱动电动车辆的控制装置及其方法

    公开(公告)号:US08200386B2

    公开(公告)日:2012-06-12

    申请号:US13035802

    申请日:2011-02-25

    Abstract: A method of controlling an accelerator of a four-wheel drive electric vehicle comprises the steps of controlling power output of the vehicle by a sum of an output torque of a main drive motor and an output torque an auxiliary drive motor with the output torque of the main drive motor being determined by a position of the accelerator pedal. The output torque T0 of the auxiliary drive motor is determined by: obtaining a torque calculation factor GainAccSum that a cumulative value of the acceleration GainAcc of the accelerator pedal; determining a maximum output torque T of the auxiliary drive motor at a current speed of the vehicle; and calculating the output torque T0 of the auxiliary drive motor varying between 0 and T based on the torque calculation factor GainAccSum and the maximum output torque T of the auxiliary drive motor at the current speed of the vehicle.

    Abstract translation: 一种控制四轮驱动电动车辆的加速器的方法包括以下步骤:通过主驱动电动机的输出转矩和输出转矩与辅助驱动电动机的输出转矩之和来控制车辆的动力输出 主驱动马达由加速踏板的位置决定。 辅助驱动电动机的输出转矩T0由下式确定:获得加速踏板的加速度增益Acc的累积值的转矩计算系数GainAccSum; 以所述车辆的当前速度确定所述辅助驱动电动机的最大输出转矩T; 并且根据车辆当前速度下的辅助驱动电动机的转矩计算系数GainAccSum和最大输出转矩T计算辅助驱动电动机的输出转矩T0在0和T之间变化。

    Control Device of a Four-Wheel Drive Electric Vehicle and Method Thereof
    5.
    发明申请
    Control Device of a Four-Wheel Drive Electric Vehicle and Method Thereof 有权
    四轮驱动电动车控制装置及其方法

    公开(公告)号:US20110153132A1

    公开(公告)日:2011-06-23

    申请号:US13035802

    申请日:2011-02-25

    Abstract: A method of controlling an accelerator of a four-wheel drive electric vehicle comprises the steps of controlling power output of the vehicle by a sum of an output torque of a main drive motor and an output torque an auxiliary drive motor with the output torque of the main drive motor being determined by a position of the accelerator pedal. The output torque T0 of the auxiliary drive motor is determined by: obtaining a torque calculation factor GainAccSum that a cumulative value of the acceleration GainAcc of the accelerator pedal; determining a maximum output torque T of the auxiliary drive motor at a current speed of the vehicle; and calculating the output torque T0 of the auxiliary drive motor varying between 0 and T based on the torque calculation factor GainAccSum and the maximum output torque T of the auxiliary drive motor at the current speed of the vehicle.

    Abstract translation: 一种控制四轮驱动电动车辆的加速器的方法包括以下步骤:通过主驱动电动机的输出转矩和输出转矩与辅助驱动电动机的输出转矩之和来控制车辆的动力输出 主驱动马达由加速踏板的位置决定。 辅助驱动电动机的输出转矩T0由下式确定:获得加速踏板的加速度增益Acc的累积值的转矩计算系数GainAccSum; 以所述车辆的当前速度确定所述辅助驱动电动机的最大输出转矩T; 并且根据车辆当前速度下的辅助驱动电动机的转矩计算系数GainAccSum和最大输出转矩T计算辅助驱动电动机的输出转矩T0在0和T之间变化。

    Methods for electric vehicle motor control and rotor position detection fault-tolerant processing
    6.
    发明授权
    Methods for electric vehicle motor control and rotor position detection fault-tolerant processing 有权
    电动汽车电机控制和转子位置检测方法容错处理

    公开(公告)号:US07755317B2

    公开(公告)日:2010-07-13

    申请号:US11951305

    申请日:2007-12-05

    CPC classification number: H02P29/032 H02P2203/05

    Abstract: This invention provides methods for electric vehicle motor control and rotor position detection and fault-tolerant processing. The rotor position signal sampled by the system is compared with the previous rotor position θ0. When there is a sudden change, the current position signal acquired is discarded. Instead, a fault-tolerant processing strategy for use during an error condition is employed where the previous sampled rotor position θ0 is used as a base to determine the corrected current rotor position angle Θ1′. Then the correcting value is used to control the electric motor. Thus, during the motor operation, when the detection of the motor rotor position is erroneous because of a sensor such as a revolver that may be interfered by external conditions such as electromagnetic fields or vibrations or when there is a breakdown in other related hardware components or transmitting circuits, the fault-tolerant processing methods of this invention can effectively prevent the motor from losing control and allow it to maintain its continuity and stability.

    Abstract translation: 本发明提供电动车辆电动机控制和转子位置检测和容错处理的方法。 将系统采样的转子位置信号与先前的转子位置进行比较; 0。 当发生突然变化时,取消当前位置信号。 相反,采用在错误状态期间使用的容错处理策略,其中先前采样的转子位置和角度0用作确定校正的当前转子位置角度θ1'的基准。 然后使用校正值来控制电动机。 因此,在电动机运转中,当电动机转子位置的检测由于诸如电动机或振动之类的外部条件等受到干扰的左轮传感器或者其他相关的硬件部件的故障而导致错误时, 传输电路,本发明的容错处理方法可以有效地防止电机失去控制并使其保持其连续性和稳定性。

    APPARATUS AND METHOD FOR CONTROLLING AN ACCELERATOR FOR ELECTRIC VEHICLES
    7.
    发明申请
    APPARATUS AND METHOD FOR CONTROLLING AN ACCELERATOR FOR ELECTRIC VEHICLES 有权
    用于控制电动车辆加速器的装置和方法

    公开(公告)号:US20100082189A1

    公开(公告)日:2010-04-01

    申请号:US12518731

    申请日:2007-12-11

    Abstract: The present invention provides an apparatus and method for controlling an accelerator for electric vehicles. The method comprises steps of: acquiring an actual accelerator pedal depth value and a current vehicle speed; determining a maximum output torque of motor under the current vehicle speed based on the current vehicle speed; and controlling the output torque of motor in such a way that the growth rate of the output torque higher than that of the actual accelerator pedal depth value at the beginning and then closed to that of the actual accelerator pedal depth value during the actual accelerator pedal depth value growing. The invention makes the output torque grown rapidly within the shallow range of accelerator pedal depth, while makes the output torque grown closed to that of the accelerator pedal depth within the relative deep range of accelerator pedal depth. Thus during the initial stage of acceleration, the vehicle may rapidly output a bigger torque, with an excellent dynamic response, to improve the driving comfort.

    Abstract translation: 本发明提供一种用于控制电动车辆的加速器的装置和方法。 该方法包括以下步骤:获取实际加速踏板深度值和当前车速; 基于当前车速确定当前车速下的电动机的最大输出转矩; 并且以这样的方式控制电动机的输出转矩,使得输出转矩的增长率高于开始时的实际加速器踏板深度值的增长速率,然后在实际加速器踏板深度期间闭合至实际加速器踏板深度值 价值增长。 本发明使得输出扭矩在加速踏板深度的浅范围内快速生长,同时使加速踏板深度的相对深度范围内的输出转矩增加到加速踏板深度的输出转矩。 因此,在加速的初始阶段,车辆可以快速输出更大的转矩,具有出色的动态响应,以提高驾驶舒适性。

    Method and apparatus for controlling output torque of a motor for an electric vehicle in downhill mode
    10.
    发明授权
    Method and apparatus for controlling output torque of a motor for an electric vehicle in downhill mode 有权
    用于在下坡模式下控制用于电动车辆的电动机的输出转矩的方法和装置

    公开(公告)号:US08326510B2

    公开(公告)日:2012-12-04

    申请号:US12521032

    申请日:2007-12-26

    Abstract: A method and an apparatus for controlling output torque of a motor for an electric vehicle in downhill mode comprises following steps: detecting a tilt angle value θ, a current vehicle speed value V and an accelerator-pedal travel value Gain of the vehicle, determining whether the vehicle is in downhill mode or not, and if the result is positive, then calculating a downhill slip torque T1 of the vehicle under the tilt angle value θ, obtaining a maximum output torque T2, calculating an output torque T of the motor based on T1, T2, Gain and a given vehicle speed delimitative value Vref, and controlling the motor to output the calculated output torque T. The present invention ensures the vehicle speed not too high by controlling the output torque of an electric vehicle in downhill mode, even if the brake-pedal travel is zero.

    Abstract translation: 一种在下坡模式下控制电动车辆用电动机的输出转矩的方法和装置,包括以下步骤:检测倾斜角度值,车辆的当前车速值V和加速踏板行驶值Gain,确定 车辆是否处于下坡模式,如果结果为正,则在倾斜角度值下计算车辆的下坡滑行转矩T1;获得最大输出转矩T2,计算电动机的输出转矩T 基于T1,T2,增益和给定的车速定界值Vref,并且控制电动机输出计算出的输出转矩T.本发明通过控制下坡模式下的电动车辆的输出转矩来确保车速不会太高 ,即使制动踏板行程为零。

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