nifty HYBRID DC HR15N Series, Руководство по обслуживанию

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English 07/16
Service Manual
HR15/17N HYBRID DC
5 System Overview
5.1 Introduction
5.1.1 Hybrid System
The main hardware for this system consists of the following:
(1) 14 kW Diesel engine
(2) Centrifugal clutch
(3) Motor/generator
(4) Motor controller
(5) 280 bar (4061 psi) 10.5cc variable displacement pump.
The hybrid system is self-contained and can run in either electric or hybrid mode.
When used in hybrid mode the power train can provide an equivalent of 23kW power to the pump, 9kW
from the motor and 14kW from the diesel engine. This allows the machine to work as a full performance
machine when required but keeping the energy consumption and noise levels as low as possible when
performing lower duty operations. When in electric only mode the machine enables machine performance
with reduced noise and zero emissions.
Battery Management
Battery condition is permanently monitored by the control circuit, such that when available power has
decreased to 20% of full charge, the battery status circuit begins to restrict the power to the hydraulic
motors. This function causes the drive system to stop & start alternately, signalling to the operator that
recharging is necessary. At the same time the sounder will begin to sound intermittently and the low
battery warning light will illuminate, reinforcing the charge warning. At this point, sufficient power remains
to drive to the nearest power point. Immediate charging will then be required.
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