Hybrid vehicle power control apparatus and hybrid construction equipment using the power control apparatus
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United States of America Patent
Stats
-
Mar 8, 2005
Grant Date -
Feb 5, 2004
app pub date -
Apr 7, 2003
filing date -
Apr 27, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An object of the invention is to maintain high vehicle driving performance and system efficiency by preventing reductions in the traction characteristic and the maximum driving speed of a vehicle. The invention relates to an electrical system for an electric automotive vehicle for driving the vehicle by supplying an electric power of a direct-current power supply to an electric motor for driving wheels via a semiconductor power converter for driving the wheels such as an inverter and speed-variably driving this electric motor or an electrical system for an electric automotive vehicle using an engine and a direct-current power supply as driving sources. A booster chopper 200 is connected between a battery device 1 or 4 as the direct-current power supply and an inverter 2 or a semiconductor power converter 100, and is controlled so that a direct-current input voltage of the inverter 2 or the like becomes substantially constant.
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