公开(公告)号：US6138782A

公开(公告)日：2000-10-31

申请号：US257717

申请日：1999-02-25

申请人： Lawrence Vernon Anderson ,  John Wayne Schletzbaum ,  Ronald Lee Mayfield ,  Dennis Royal Yoder ,  Benjamin Michael Witte ,  Raymond Yifei Hou ,  Sanjay Ishvarlal Mistry

发明人： Lawrence Vernon Anderson ,  John Wayne Schletzbaum ,  Ronald Lee Mayfield ,  Dennis Royal Yoder ,  Benjamin Michael Witte ,  Raymond Yifei Hou ,  Sanjay Ishvarlal Mistry

IPC分类号： B62D11/08 ,  B62D11/10 ,  B62D11/18 ,  F02D29/02 ,  B62D11/04

CPC分类号： B62D11/183

摘要： A steering control system for a tracked vehicle includes an engine driven variable displacement steering pump which drives a hydraulic motor. A control system senses steering wheel position, vehicle speed, engine speed and forward/reverse vehicle direction. As a function of these sensed inputs, a control signal is generated and is used to control the swashplate angle of an engine-driven variable displacement pump which drives a steering motor which drives a differential track drive mechanism. The control system also determines a ratio of motor speed to vehicle speed and generates a powerboost signal when the ratio exceeds a threshold value. The powerboost signal is communicated to the engine controller which causes the engine to increase its power output. This modifies the engine fuel delivery curve based on the steering system power requirement and increases the power available for turning the vehicle.

摘要翻译： 用于跟踪车辆的转向控制系统包括驱动液压马达的发动机驱动的可变排量转向泵。 控制系统感测方向盘位置，车速，发动机转速和前进/后退车辆方向。 作为这些检测到的输入的函数，产生控制信号并且用于控制驱动驱动差速传动驱动机构的转向马达的发动机驱动的可变排量泵的斜盘角。 控制系统还确定电动机速度与车辆速度的比率，并且当比率超过阈值时产生电力信号。 发电机信号被传送到发动机控制器，该发动机控制器使发动机增加其功率输出。 这将根据转向系统的功率需求修改发动机燃油输送曲线，并增加转向车辆的可用功率。