HYBRID-TYPE WORKING MACHINE
First Claim
1. A hybrid-type working machine comprising:
- an engine that drives a hydraulic pump;
a motor generator that assists the engine;
a plurality of electric loads;
an electric storage part that supplies electric power to the motor generator and the electric loads; and
a control part that controls said engine, said motor generator, said electric loads and said electric storage part,wherein the control part includes;
a priority setting part configured to set a priority to each of said electric loads;
a supply power computing part configured to compute an available electric power, which can be supplied from said motor generator and said electric storage part to said electric loads;
a total power computing part configured to compute a total electric power amount by summing electric power amounts requested by said electric loads; and
a power distributing part configured to compare said available electric power with said total electric power amount, and, when said available electric power is larger than said total electric power amount, determine a distribution ratio of electric power amounts to be supplied to the respective electric loads based on said priority to limit the electric power amounts supplied to said electric loads.
1 Assignment
0 Petitions
Accused Products
Abstract
A hybrid-type working machine includes a plurality of electric loads and an electric storage part supplying an electric power to a motor generator and the electric loads. A priority setting part sets a priority to each electric load. A supply power computing part computes an available electric power, which can be supplied from the motor generator and the electric storage part to the electric loads. A total power computing part computes a total electric power amount by summing electric power amounts requested by the electric loads. A power distributing part compares the available electric power with the total electric power amount, and, when the available electric power is larger than the total electric power amount, determines a distribution ratio of electric power amounts to be supplied to the respective electric loads based on the priority to limit the electric power amounts supplied to the electric loads.
21 Citations
5 Claims
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1. A hybrid-type working machine comprising:
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an engine that drives a hydraulic pump; a motor generator that assists the engine; a plurality of electric loads; an electric storage part that supplies electric power to the motor generator and the electric loads; and a control part that controls said engine, said motor generator, said electric loads and said electric storage part, wherein the control part includes; a priority setting part configured to set a priority to each of said electric loads; a supply power computing part configured to compute an available electric power, which can be supplied from said motor generator and said electric storage part to said electric loads; a total power computing part configured to compute a total electric power amount by summing electric power amounts requested by said electric loads; and a power distributing part configured to compare said available electric power with said total electric power amount, and, when said available electric power is larger than said total electric power amount, determine a distribution ratio of electric power amounts to be supplied to the respective electric loads based on said priority to limit the electric power amounts supplied to said electric loads. - View Dependent Claims (2, 3, 4, 5)
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Specification