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11. 发明授权

US07044257B2 Drive system of a utility vehicle 有权
标题翻译：多用途车的驱动系统
公开(公告)号：US07044257B2
公开(公告)日：2006-05-16
申请号：US10389854
申请日：2003-03-14
申请人： Bernd Kempf , Jürgen Hofer , Stefan Bohrer
发明人： Bernd Kempf , Jürgen Hofer , Stefan Bohrer
IPC分类号： B60K17/00
CPC分类号： F16H61/472 , B60W2300/158 , F16H59/44 , F16H61/42 , F16H61/427 , F16H61/47 , F16H2059/683
摘要： A drive system for use in utility vehicles, such as agricultural forage harvesters and combines, includes a hydrostatic transmission having a pump driven by a main engine of the vehicle and having first and second motors respectively coupled to front and rear axles of the vehicle by way of first and second differential gear sets. The pump and one or both of the motors have a variable displacement determined by positioning respective swash plates through the agency of a lever, in the case of the pump, and by electronic devices, in the case of the motors, the electronic devices acting in response to control signals sent by a control arrangement, which in turn, operates in response to signals produced by pressure sensors associated with the motors and by signals produced by speed sensors associated with output shafts of the hydraulic motors. The control arrangement has a memory for storage of data, such as maximum legal ground speed and the ratio of the speeds of the axles as results from a given wheel size, and uses this information for controlling the hydrostatic transmission such that the vehicle does not exceed the speed, and the front and rear axles are driven so as to produce the same ground speed.
摘要翻译：一种用于多用途车辆的驱动系统，例如农作物收割机和组合机，包括具有由车辆的主发动机驱动的泵的具有第一和第二马达的液压传动装置，其分别通过车辆的前轴和后轴连接的第一和第二差速齿轮组。泵和一个或两个电动机具有可变位移，其通过在泵的情况下通过杠杆的代理定位相应的斜盘而确定，并且在电动机的情况下，通过电子装置，电子装置作用于响应由控制装置发送的控制信号，控制装置又响应于与电动机相关联的压力传感器产生的信号以及由与液压马达的输出轴相关联的速度传感器产生的信号而操作。控制装置具有用于存储数据的存储器，例如最大合法地面速度和作为给定车轮尺寸的结果的轴的速度比，并且使用该信息来控制静液压传动，使得车辆不超过速度以及前后轴被驱动以产生相同的地面速度。

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