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公开(公告)号：US5113344A
公开(公告)日：1992-05-12
申请号：US558938
申请日：1990-07-27
IPC分类号： G05B19/042 , G05B19/12
CPC分类号： G05B19/0428 , G05B19/042 , G05B19/128 , G05B2219/23428 , G05B2219/25078 , G05B2219/25092 , G05B2219/25366 , G05B2219/2641 , Y02P90/10
摘要： The present invention features a material handling vehicle identification system. The material handling vehicle has a universal system processor for controlling the vehicle speed, acceleration, direction and motion of a plurality of different vehicles. A semiconductor memory device is permanently affixed to the chassis of the vehicle during the manufacturing process. This memory device contains a unique identification tag. The identification tag is remotely disposed from, but operatively connected to the system processor. The identification tag includes data for uniquely identifying the material handling vehicle. The system processor can control the performance of the vehicle as a function of the data in the identification tag, whereby the system processor becomes customized to operate consistant only with the vehicle in which it is installed.
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2.发明授权Temperature control system for motors and power components of a material handling vehicle 失效材料处理车辆电机和动力部件温度控制系统
公开(公告)号：US5123081A
公开(公告)日：1992-06-16
申请号：US558921
申请日：1990-07-27
IPC分类号： H02H7/085
CPC分类号： H02H7/0852 , Y02T10/7258 , Y10S388/91
摘要： The present invention features a system and method for preventing overheating of a motor and/or power amplifier of a material handling vehicle by controlling the performance of the vehicle as a function of motor and/or power amplifier temperature. Temperature sensors are connected to the motor and power amplifier for determining their operating temperatures. A controller is connected to each temperature sensor and to the motor for controlling acceleration of the motor as a function of either or both temperatures, so that both the motor and the power amplifier will not overheat. In controlling acceleration of the motor, the invention provides a mechanism for changing acceleration by discrete steps or continuously according to a performance curve which may be linear or otherwise.
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公开(公告)号：US5579227A
公开(公告)日：1996-11-26
申请号：US629795
申请日：1996-04-09
CPC分类号： B66F17/003 , B66F9/24 , G01R31/005 , G06F11/327 , G07C5/0808
摘要： The present invention features a diagnostic method for assessing intermittent failures which occur in the components and systems of material handling vehicles. The material handling vehicle of this invention uses an on-board microprocessor and display to allow an operator to determine whether any intermittency is present in the internal systems. The microprocessor is programmed to analyze each system during normal vehicular operation. The program is divided into two vehicular modes, "normal operating" and "program". During the normal operating mode, the vehicle operator is warned of a problem by different audible tones and patterns. A fault code scrolls across the vehicle display screen, indicating the nature of the failure. The program mode can then be entered to assess just where the problem is located. The program mode is divided into three additional modes: "maintenance mode", "configure mode" and "learn mode". The vehicle is selected for maintenance diagnostics during the program mode, and then switched back to the normal operating mode, where the intermittent failures can be diagnosed. The maintenance mode is divided into three diagnostic surveys: output controls, digital input measurements for analyzing switches and encoders, and analog input measurements for testing voltages and potentiometers. Each system in the vehicle can be analyzed by selecting the proper maintenance code.
摘要翻译： 本发明的特征在于用于评估材料处理车辆的部件和系统中发生的间歇性故障的诊断方法。 本发明的材料处理车辆使用车载微处理器和显示器来允许操作者确定内部系统中是否存在任何间歇性。 微处理器被编程为在正常车辆操作期间分析每个系统。 该方案分为“正常运行”和“程序”两种车型。 在正常操作模式期间，通过不同的可听音和图案向车辆操作员发出问题警告。 故障代码在车辆显示屏幕上滚动，指示故障的性质。 然后可以输入程序模式来评估问题所在的位置。 程序模式分为“维护模式”，“配置模式”和“学习模式”三种附加模式。 在程序模式期间，选择车辆进行维护诊断，然后切换回正常运行模式，在这种情况下可以诊断间歇性故障。 维护模式分为三个诊断测量：输出控制，用于分析开关和编码器的数字输入测量，以及用于测试电压和电位计的模拟输入测量。 可以通过选择适当的维护代码来分析车辆中的每个系统。
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