公开(公告)号：US06877577B1

公开(公告)日：2005-04-12

申请号：US10038326

申请日：2002-01-02

Applicant: Roger Smith

Inventor： Roger Smith

IPC: B60K6/12 ,  B60K6/46 ,  B60K17/356 ,  B60K28/16

CPC classification number: B60K6/46 ,  B60K6/12 ,  B60K17/356 ,  B60K28/165 ,  Y02T10/6208 ,  Y02T10/6217 ,  Y02T10/6265

Abstract: An all wheel drive system for a motor vehicle in which wheel slippage is effectively controlled and regenerative energy is effectively stored for subsequent utilization in the system. A hydraulic embodiment of the invention includes a hydraulic motor, a pump, a tank, an accumulator for storing pressurized fluid, and a device for sensing system back pressure. In response to a loss of system back pressure the pressure of the fluid being supplied to the motor is reduced and the motor discharge is directed to the accumulator, and in response to a sensed resumption of system back pressure regenerative energy from the accumulator is directed to the motor to assist in powering the motor. An electric embodiment of the invention includes an electric motor, an electric generator, a device for storing electrical energy such as a battery pack or a capacitor bank, a DC tachometer driven by the motor and operative to sense the motor power requirements, and a directional circuit switch assembly. In response to a drop in the power requirements of the motor representing wheel slippage the energy supplied to the motor is reduced; in response to a sensed overrunning condition of the motor wherein the motor is functioning as a generator the output of the generator is routed to the energy storage device; and in response to a sensed resumption of motor power requirements regenerative energy is directed from the energy storage device to the motor to assist in powering of the motor.

Abstract translation: 一种用于机动车辆的全轮驱动系统，其中有效地控制车轮打滑，并且有效地存储再生能量以便随后在系统中使用。 本发明的液压实施例包括液压马达，泵，罐，用于储存加压流体的储液器和用于感测系统背压的装置。 为了响应于系统背压的损失，供给到电动机的流体的压力减小，并且电动机排放被引导到蓄能器，并且响应于感测到的系统背压的恢复，来自蓄能器的再生能量被引导到 电机协助给马达供电。 本发明的电气实施例包括电动机，发电机，用于存储诸如电池组或电容器组的电能的装置，由电动机驱动并用于感测电动机功率需求的DC转速计，以及定向 电路开关组件。 响应于表示车轮打滑的电动机的功率要求下降，供应给电动机的能量减少; 响应于电动机的感测超越状态，其中电动机用作发电机，发电机的输出被路由到能量存储装置; 并且响应于感测到的电动机功率需求的恢复，再生能量从能量存储装置引导到电动机以辅助电动机的供电。