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    • 9. 发明授权
    • Control apparatus for electric vehicle
    • 电动车控制装置
    • US5731669A
    • 1998-03-24
    • US710214
    • 1996-09-13
    • Takumi ShimizuTsuneyuki Egami
    • Takumi ShimizuTsuneyuki Egami
    • B60L9/18B60L11/18B60L15/08H02P6/08B60L9/00H02P7/00
    • B60L15/08B60L11/1807B60L15/20B60L2240/421B60L2240/423B60L2240/427B60L2240/429B60L2240/525B60L2250/26B60L2250/28Y02T10/644Y02T10/645Y02T10/7005
    • A control apparatus for an electric vehicle includes a device for detecting a degree of depression of an accelerator pedal in the electric vehicle, and for outputting an accelerator depression degree signal representing the detected degree of depression of the accelerator pedal. A polyphase ac motor is operative for driving the electric vehicle. A rotational speed of the polyphase ac motor is detected, and a motor rotational speed signal is generated which represents the detected rotational speed of the polyphase ac motor. A battery in the vehicle generates dc power. An inverter changes the dc power into ac power through pulse width modulation responsive to a PWM modulation signal, and outputs the ac power to the polyphase ac motor to drive the latter. A steady torque command value is calculated on the basis of the motor rotational speed signal and the accelerator depression degree signal. A transient torque command value is calculated on the basis of a rate of a variation in the accelerator depression degree signal. A torque command value calculating device is operative for calculating a command value of a torque generated by the polyphase ac motor on the basis of the steady torque command value and the transient torque command value. A motor control device is operative for generating the PWM modulation signal in response to the torque command value calculated by the torque command value calculating device, and for outputting the PWM modulation signal to the inverter to control the polyphase ac motor.
    • 一种用于电动车辆的控制装置,包括用于检测电动车辆中的加速器踏板的压下程度的装置,并且用于输出表示检测到的加速器踏板的下压的加速度减速度信号。 多相交流电动机用于驱动电动车辆。 检测多相交流电动机的转速,产生表示多相交流电动机的检测转速的电动机转速信号。 汽车中的电池产生直流电。 逆变器根据PWM调制信号通过脉冲宽度调制器将直流功率变换为交流电源,并将交流电源输出到多相交流电机驱动。 基于电动机转速信号和加速器抑制度信号计算出稳定的转矩指令值。 基于加速器抑制度信号的变化率来计算瞬时转矩指令值。 转矩指令值计算装置用于根据稳定转矩指令值和瞬时转矩指令值计算由多相交流电动机产生的转矩的指令值。 电动机控制装置用于响应于由转矩指令值计算装置计算的转矩指令值产生PWM调制信号,并将PWM调制信号输出到逆变器以控制多相交流电动机。
    • 10. 发明授权
    • Method for controlling air-fuel ratio in internal combustion engine
    • 内燃机空燃比控制方法
    • US4633840A
    • 1987-01-06
    • US690502
    • 1985-01-10
    • Tsutomu SaitoTsuneyuki EgamiTokio KohamaKimitaka SaitoHiroshi TakahashiKunihiko Sato
    • Tsutomu SaitoTsuneyuki EgamiTokio KohamaKimitaka SaitoHiroshi TakahashiKunihiko Sato
    • F02D41/14
    • F02D41/1487F02D41/1483
    • Air-fuel ratio control of an internal combustion engine is performed using sensors for detecting operating conditions of the engine, such as the intake air amount, engine rotational speed, or air-fuel ratio; a fuel injection valve driven by an electrical signal to inject fuel; and a control circuit for receiving signals from the operating condition sensors, performing predetermined operations and generating an electrical signal for driving the fuel injection valve. The control circuit performs a step of calculating an air-fuel ratio variation D(A/F) with respect to an optimum air-fuel ratio based on the ratio of a change .DELTA.F, of an air-fuel ratio correction signal F during acceleration under air-fuel ratio feedback control based on a signal from the air-fuel ratio sensor, to an acceleration amount A, and a step of controlling a transient fuel correction ratio f(AEW) based on the obtained air-fuel ratio variation D(A/F).
    • 使用用于检测发动机的运转状况的传感器(例如进气量,发动机转速或空燃比)来执行内燃机的空燃比控制; 由电信号驱动以喷射燃料的燃料喷射阀; 以及控制电路,用于从操作状态传感器接收信号,执行预定操作并产生用于驱动燃料喷射阀的电信号。 控制电路基于加速期间的空燃比校正信号F的变化率DELTA F的比率来执行相对于最佳空燃比的空燃比变化量D(A / F)的计算步骤 基于来自空燃比传感器的信号的空燃比反馈控制到加速量A,以及基于获得的空燃比变化D(AEW)控制瞬时燃料校正比f(AEW)的步骤 A / F)。