M313D, M315D, M315D Series 2, M315D2, M316D, M317D Series 2, M317D2, M318D, M320D2, M322D, M322D 2 MH, M322D2 and M324D 2 MH Wheeled Excavators Electronic System Caterpillar


Refueling Function

Usage:

M315D2 CA4



图 1g02419997

加油功能电路连接示意图。

加油功能由机器 ECM 根据来自加油泵开关的输入和其他机器状态控制。 ECM 利用加油泵继电器启用加油泵。

ECM 检测到加油泵开关输入接地时,将接通加油泵继电器的反相驱动器输出。 继电器励磁时,系统电压将通过继电器触点从加油保险丝输送至加油泵马达。

必须出现下列状况才能使 ECM 励磁加油泵继电器。

  • 发动机停机。

  • 左操控台必须处于升起位置。

  • 如变速箱输出速度传感器所示,未检测到行驶。

ECM 励磁加油泵继电器时,将停用所有其他 ECM 输出。

ECM 将在加油过程中监控燃油箱中的燃油油位。 如果燃油箱的油位低于满箱油位的 96%,ECM 将在自动模式下运行继电器。 处于自动模式下并且按下瞬时加油泵开关再松开后,ECM 将励磁加油泵继电器并保持继电器励磁,直到再次按下开关。

处于自动模式时, 如果出现下列任何一种状况 ECM 将使继电器断电:

  • 如果经过不止 18 分钟后燃油箱的油位不超过满箱油位的 96%。

  • 如果 ECM 在 120 秒内未检测到燃油油位至少出现 1% 的变化。

ECM 检测到燃油箱的油位已达到满箱油位的 96% 时,ECM 将切换到手动模式。 启用手动模式时,必须按下加油泵开关并保持住,以使 ECM 励磁加油泵继电器。

如果左侧扶手位置开关出现故障,ECM 将不励磁加油泵继电器。

Caterpillar Information System:

M313D, M315D, M315D Series 2, M315D2, M316D, M317D Series 2, M317D2, M318D, M320D2, M322D, M322D 2 MH, M322D2 and M324D 2 MH Wheeled Excavators Electronic System Quick Coupler Function
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M313D, M315D, M315D Series 2, M315D2, M316D, M317D Series 2, M317D2, M318D, M320D2, M322D, M322D 2 MH, M322D2 and M324D 2 MH Wheeled Excavators Electronic System Parking Brake Function
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