公开(公告)号：US5227703A

公开(公告)日：1993-07-13

申请号：US871929

申请日：1992-04-21

Applicant: Richard W. Boothe ,  Charles E. Konrad

Inventor： Richard W. Boothe ,  Charles E. Konrad

IPC: B60L3/06 ,  B60L3/00 ,  B60L9/18 ,  B60L11/18

CPC classification number: B60L11/1803 ,  B60L3/00 ,  B60L2240/525 ,  Y02T10/7005

Abstract: A battery powered traction vehicle propulsion system uses an alternating current (AC) adjustable speed electric traction motor to propel the vehicle. The motor is connected to a source of controllable AC power that is responsive to a control signal for setting the value of power applied to the motor. A function generator produces the control signal in response to a command signal and limits the rate of change of the control signal and its minimum and maximum values. The minimum and maximum values are varied in response to preselected operating characteristics of the propulsion system, such as, for example, battery voltage, motor temperature, motor and vehicle speed and control system temperature.

公开(公告)号：US5287051A

公开(公告)日：1994-02-15

申请号：US837467

申请日：1992-02-14

Applicant: Charles E. Konrad ,  Richard W. Boothe

Inventor： Charles E. Konrad ,  Richard W. Boothe

IPC: H02P27/08 ,  B60L11/18 ,  H02M7/5387 ,  H02P27/06 ,  H02P5/40

CPC classification number: H02M7/53875 ,  B60L11/1803 ,  B60L2210/40 ,  Y02T10/7005 ,  Y02T10/7241

Abstract: A scheme for optimizing the efficiency of an AC motor drive operated in a pulse-width-modulated mode provides that the modulation frequency of the power furnished to the motor is a function of commanded motor torque and is higher at lower torque requirements than at higher torque requirements.

Abstract translation: 用于优化以脉冲宽度调制模式操作的AC电动机驱动器的效率的方案提供了提供给电动机的电力的调制频率是指令电动机转矩的函数，并且在较低转矩要求下比在较高转矩下更高 要求。

公开(公告)号：US5486748A

公开(公告)日：1996-01-23

申请号：US195636

申请日：1994-02-14

Applicant: Charles E. Konrad ,  Richard W. Boothe

Inventor： Charles E. Konrad ,  Richard W. Boothe

IPC: H02P27/08 ,  B60L11/18 ,  H02M7/5387 ,  H02P27/06 ,  H02P5/28

CPC classification number: H02M7/53875 ,  B60L11/1803 ,  B60L2210/40 ,  Y02T10/7005 ,  Y02T10/7241

Abstract: A scheme for optimizing the efficiency of an AC motor drive operated in a pulse-width-modulated mode provides that the modulation frequency of the power furnished to the motor is a function of commanded motor torque and is higher at lower torque requirements than at higher torque requirements.

Abstract translation: 用于优化以脉冲宽度调制模式操作的AC电动机驱动器的效率的方案提供了提供给电动机的电力的调制频率是指令电动机转矩的函数，并且在较低转矩要求下比在较高转矩下更高 要求。

公开(公告)号：US5403244A

公开(公告)日：1995-04-04

申请号：US16798

申请日：1993-04-15

Applicant: Jerome B. Tankersley ,  Richard W. Boothe ,  Charles E. Konrad

Inventor： Jerome B. Tankersley ,  Richard W. Boothe ,  Charles E. Konrad

IPC: B60K1/00 ,  B60K1/04 ,  B60K17/08 ,  B60K17/16 ,  B60W10/08 ,  B60W30/18 ,  F16H59/08 ,  F16H61/04

CPC classification number: B60K17/08 ,  B60K1/00 ,  B60W10/08 ,  B60W10/115 ,  B60W30/18 ,  B60K1/04 ,  B60K17/16 ,  B60W2510/081 ,  B60W2710/1005 ,  F16H2059/083 ,  F16H61/0437 ,  Y10T477/347

Abstract: An electric vehicle drive train includes an electric motor and an associated speed sensor, a transmission operable in a speed reduction mode or a direct coupled mode, and a controller responsive to the speed sensor for operating the transmission in the speed reduction mode when the motor is below a predetermined value, and for operating the motor in the direct coupled mode when the motor speed is above a predetermined value. The controller reduces the speed of the motor, such as by regeneratively braking the motor, when changing from the speed reduction mode to the direct coupled mode. The motor speed may be increased when changing from the direct coupled mode to the speed reduction mode. The transmission is preferably a single stage planetary gearbox.

Abstract translation: 电动车辆传动系包括电动机和相关的速度传感器，以减速模式或直接耦合模式操作的变速器，以及响应速度传感器的控制器，用于在电动机为止时以减速模式操作变速器 低于预定值，并且当电动机速度高于预定值时用于以直接耦合模式操作电动机。 当从减速模式切换到直接耦合模式时，控制器可以降低电动机的速度，例如通过再生制动电动机。 从直接耦合模式切换到减速模式时，马达速度可能会增加。 变速器优选为单级行星齿轮箱。