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公开(公告)号：US08676445B2
公开(公告)日：2014-03-18
申请号：US12767801
申请日：2010-04-27
摘要： The present disclosure relates to computer-implemented methods of diagnosing a vehicle hydraulic power steering system and steering diagnostic systems for executing the same. Some exemplary diagnostic systems are configured to detect a steering system condition based on an evaluation of a steering pump outlet pressure, an engine speed and/or a steering wheel position. The system sends a warning signal when a predetermined steering system condition is detected.
摘要翻译： 本公开涉及用于诊断车辆液压动力转向系统的计算机实现的方法和用于执行该方法的转向诊断系统。 一些示例性诊断系统被配置为基于对转向泵出口压力，发动机速度和/或方向盘位置的评估来检测转向系统状况。 当检测到预定的转向系统条件时，系统发送警告信号。
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公开(公告)号：US20110264321A1
公开(公告)日：2011-10-27
申请号：US12767801
申请日：2010-04-27
IPC分类号： G06F19/00
摘要： The present disclosure relates to computer-implemented methods of diagnosing a vehicle hydraulic power steering system and steering diagnostic systems for executing the same. Some exemplary diagnostic systems are configured to detect a steering system condition based on an evaluation of a steering pump outlet pressure, an engine speed and/or a steering wheel position. The system sends a warning signal when a predetermined steering system condition is detected.
摘要翻译： 本公开涉及用于诊断车辆液压动力转向系统的计算机实现的方法和用于执行该方法的转向诊断系统。 一些示例性诊断系统被配置为基于对转向泵出口压力，发动机速度和/或方向盘位置的评估来检测转向系统状况。 当检测到预定的转向系统条件时，系统发送警告信号。
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公开(公告)号：US08408352B2
公开(公告)日：2013-04-02
申请号：US12004132
申请日：2007-12-20
IPC分类号： B62D5/065
CPC分类号： B62D5/065 , Y10T137/2607
摘要： An electronic control unit monitors pressure conditions present at the input to the steering system and other vehicle data signals and then provides override control of a hydro-mechanical flow control device. An electro-hydraulic valve is connected to the supply side of the hydro-mechanical flow control device and reacts to the electronic monitoring of pressure and other vehicle data to alter the counter-balancing forces within the hydro-mechanical flow control device. This causes a by-pass diversion of steering fluid to the source by the hydro-mechanical flow control device and thereby relieves backpressure on the pump when relatively little steering assist is required to be provided by the steering system. The control of steering fluid diversion at such times results in a significant reduction in parasitic losses within the steering system and improves the operating and fuel efficiency of the vehicle.
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公开(公告)号：US20090159360A1
公开(公告)日：2009-06-25
申请号：US12004132
申请日：2007-12-20
IPC分类号： B62D5/065
CPC分类号： B62D5/065 , Y10T137/2607
摘要： An electronic control unit monitors pressure conditions present at the input to the steering system and other vehicle data signals and then provides override control of a hydro-mechanical flow control device. An electro-hydraulic valve is connected to the supply side of the hydro-mechanical flow control device and reacts to the electronic monitoring of pressure and other vehicle data to alter the counter-balancing forces within the hydro-mechanical flow control device. This causes a by-pass diversion of steering fluid to the source by the hydro-mechanical flow control device and thereby relieves backpressure on the pump when relatively little steering assist is required to be provided by the steering system. The control of steering fluid diversion at such times results in a significant reduction in parasitic losses within the steering system and improves the operating and fuel efficiency of the vehicle.
摘要翻译： 电子控制单元监视存在于转向系统和其他车辆数据信号的输入端上的压力条件，然后提供水力机械流量控制装置的超控。 电动液压阀连接到水力机械流量控制装置的供给侧，并且对电压监控和其他车辆数据进行反应，以改变水力机械流量控制装置内的平衡力。 这导致通过水力机械流量控制装置将转向流体旁路转移到源，从而在需要由转向系统提供的相对小的转向辅助时，缓解泵上的背压。 在这种情况下控制转向液转向导致转向系统内的寄生损失显着减少，并提高车辆的运行和燃油效率。
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