Position Sensor (Truck Body)
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图 1 | g00498361 |
(1) 杆 (2) 卡车车斗位置传感器 |
卡车车斗位置传感器 (2) 位于卡车车斗枢轴销旁的左后车架上。 连杆 (1) 连接在卡车车斗位置传感器 (2) 和卡车车斗之间。 升起卡车车斗时,连杆 (1) 转动卡车车斗位置传感器 (2) 。 此转动改变发送至动力传动系电子控制模块(动力传动系 ECM)的脉冲宽度调制信号。 传感器和卡车车斗之间的连杆调整非常重要。 从中心至连杆两端的尺寸应为 360.0 ± 3.0 mm (14.17 ± 0.12 inch)。
调整连杆 (1) 后,动力传动系 ECM 将会执行标定。 当符合以下所有条件时,卡车车斗位置传感器 (2) 由动力传动系 ECM 标定。
- 发动机将在无行驶速度下运行一分钟。
- 举倾操纵杆在浮动 位置。
- 卡车车斗位置传感器的信号与先前标定的值相差 6 度。
- 工作循环输出必须小于 20%。
卡车车斗上升时,卡车车斗位置传感器 (2) 被用于限制最高档位。 出厂时动力传动系 ECM 的最高档数值设置为第一档。 直到卡车车斗降下,变速箱才会换过第一档。 最高档数值可以通过利用电子控制分析程序装置(ECAP)或者电子技师(ET)编程。 最高档数值可改变为第二档、第三档和第四档。
来自卡车车斗位置传感器 (2) 的信号被用于控制举倾机构控制阀的 SNUB 位置。 在卡车车斗降低到车架附近时,动力传动系 ECM 将向举倾机构比例电磁阀发送信号以将举倾机构控制阀移至 SNUB 位置。 浮动的速度在 SNUB 位置被降低,以阻止卡车车斗接触机架时过于猛烈。
来自卡车车斗位置传感器 (2) 的信号在卡车随卡车车斗向上移动时向操作员发出警告。
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