Drive unit for an electrically operated vehicle
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United States of America Patent
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Mar 18, 2003
Issued Date -
N/A
app pub date -
Sep 28, 2000
filing date -
Jan 29, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A drive unit for electrically-operated vehicles. Two electromotors which can be electrically switched in series or in parallel, optionally, are used in the drive unit in order to obtain a high degree of efficiency and a high degree of overload protection for the batteries. The motors can also be controlled with pulse width modulation by means of an electronic control unit, which enables the current load of the batteries to be kept within stipulated limits. Other advantages of the invention lie in the better use that is made of the construction space, the lower production costs and the use of economical construction materials.
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